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OpenFace/lib/3rdParty/dlib/include/dlib/gui_widgets/widgets.cpp
unknown 57e58a6949 Master commit of OpenFace.
2016-04-28 15:40:36 -04:00

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// Copyright (C) 2005 Davis E. King (davis@dlib.net), Keita Mochizuki
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_WIDGETs_CPP_
#define DLIB_WIDGETs_CPP_
#include "widgets.h"
#include <algorithm>
#include "../string.h"
namespace dlib
{
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// toggle_button object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
void toggle_button::
set_size (
unsigned long width,
unsigned long height
)
{
auto_mutex M(m);
rectangle min_rect = style->get_min_size(name_,*mfont);
// only change the size if it isn't going to be too small to fit the name
if (height >= min_rect.height() &&
width >= min_rect.width())
{
rectangle old(rect);
rect = resize_rect(rect,width,height);
parent.invalidate_rectangle(rect+old);
btn_tooltip.set_size(width,height);
}
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_checked (
)
{
auto_mutex M(m);
checked = true;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_unchecked (
)
{
auto_mutex M(m);
checked = false;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
bool toggle_button::
is_checked (
) const
{
auto_mutex M(m);
return checked;
}
// ----------------------------------------------------------------------------------------
void toggle_button::
show (
)
{
button_action::show();
btn_tooltip.show();
}
// ----------------------------------------------------------------------------------------
void toggle_button::
hide (
)
{
button_action::hide();
btn_tooltip.hide();
}
// ----------------------------------------------------------------------------------------
void toggle_button::
enable (
)
{
button_action::enable();
btn_tooltip.enable();
}
// ----------------------------------------------------------------------------------------
void toggle_button::
disable (
)
{
button_action::disable();
btn_tooltip.disable();
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_tooltip_text (
const std::string& text
)
{
btn_tooltip.set_text(text);
}
void toggle_button::
set_tooltip_text (
const std::wstring& text
)
{
btn_tooltip.set_text(text);
}
void toggle_button::
set_tooltip_text (
const dlib::ustring& text
)
{
btn_tooltip.set_text(text);
}
// ----------------------------------------------------------------------------------------
const std::string toggle_button::
tooltip_text (
) const
{
return btn_tooltip.text();
}
const std::wstring toggle_button::
tooltip_wtext (
) const
{
return btn_tooltip.wtext();
}
const dlib::ustring toggle_button::
tooltip_utext (
) const
{
return btn_tooltip.utext();
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
set_name(name_);
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_pos (
long x,
long y
)
{
auto_mutex M(m);
button_action::set_pos(x,y);
btn_tooltip.set_pos(x,y);
}
// ----------------------------------------------------------------------------------------
void toggle_button::
set_name (
const std::string& name
)
{
set_name(convert_mbstring_to_wstring(name));
}
void toggle_button::
set_name (
const std::wstring& name
)
{
set_name(convert_wstring_to_utf32(name));
}
void toggle_button::
set_name (
const dlib::ustring& name
)
{
auto_mutex M(m);
name_ = name;
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
name_[0] = name_[0];
rectangle old(rect);
rect = move_rect(style->get_min_size(name,*mfont),rect.left(),rect.top());
btn_tooltip.set_size(rect.width(),rect.height());
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
const std::string toggle_button::
name (
) const
{
return convert_wstring_to_mbstring(wname());
}
const std::wstring toggle_button::
wname (
) const
{
return convert_utf32_to_wstring(uname());
}
const dlib::ustring toggle_button::
uname (
) const
{
auto_mutex M(m);
dlib::ustring temp = name_;
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
temp[0] = name_[0];
return temp;
}
// ----------------------------------------------------------------------------------------
void toggle_button::
on_button_up (
bool mouse_over
)
{
if (mouse_over)
{
checked = !checked;
// this is a valid toggle_button click
if (event_handler.is_set())
event_handler();
else if (event_handler_self.is_set())
event_handler_self(*this);
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// label object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
void label::
draw (
const canvas& c
) const
{
rectangle area = rect.intersect(c);
if (area.is_empty() || text_.size() == 0)
return;
using namespace std;
unsigned char r = text_color_.red;
unsigned char g = text_color_.green;
unsigned char b = text_color_.blue;
if (!enabled)
{
r = 128;
g = 128;
b = 128;
}
rectangle text_rect(rect);
string::size_type first, last;
first = 0;
last = text_.find_first_of('\n');
mfont->draw_string(c,text_rect,text_,rgb_pixel(r,g,b),first,last);
while (last != string::npos)
{
first = last+1;
last = text_.find_first_of('\n',first);
text_rect.set_top(text_rect.top()+mfont->height());
mfont->draw_string(c,text_rect,text_,rgb_pixel(r,g,b),first,last);
}
}
// ----------------------------------------------------------------------------------------
void label::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
set_text(text_);
}
// ----------------------------------------------------------------------------------------
void label::
set_text (
const std::string& text
)
{
set_text(convert_mbstring_to_wstring(text));
}
void label::
set_text (
const std::wstring& text
)
{
set_text(convert_wstring_to_utf32(text));
}
void label::
set_text (
const dlib::ustring& text
)
{
using namespace std;
auto_mutex M(m);
text_ = text;
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
text_[0] = text[0];
rectangle old(rect);
unsigned long width;
unsigned long height;
mfont->compute_size(text,width,height);
rect.set_right(rect.left() + width - 1);
rect.set_bottom(rect.top() + height - 1);
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
const std::string label::
text (
) const
{
return convert_wstring_to_mbstring(wtext());
}
const std::wstring label::
wtext (
) const
{
return convert_utf32_to_wstring(utext());
}
const dlib::ustring label::
utext (
) const
{
auto_mutex M(m);
dlib::ustring temp = text_;
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
temp[0] = text_[0];
return temp;
}
// ----------------------------------------------------------------------------------------
void label::
set_text_color (
const rgb_pixel color
)
{
m.lock();
text_color_ = color;
parent.invalidate_rectangle(rect);
m.unlock();
}
// ----------------------------------------------------------------------------------------
const rgb_pixel label::
text_color (
) const
{
auto_mutex M(m);
return text_color_;
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// text_field object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
rectangle text_field::
get_text_rect (
) const
{
// figure out where the text string should appear
unsigned long vertical_pad = (rect.height() - mfont->height())/2+1;
rectangle text_rect;
text_rect.set_left(rect.left()+style->get_padding(*mfont));
text_rect.set_top(rect.top()+vertical_pad);
text_rect.set_right(rect.right()-style->get_padding(*mfont));
text_rect.set_bottom(text_rect.top()+mfont->height()-1);
return text_rect;
}
// ----------------------------------------------------------------------------------------
void text_field::
enable (
)
{
drawable::enable();
right_click_menu.enable();
}
// ----------------------------------------------------------------------------------------
void text_field::
give_input_focus (
)
{
auto_mutex M(m);
has_focus = true;
cursor_visible = true;
parent.invalidate_rectangle(rect);
t.start();
}
// ----------------------------------------------------------------------------------------
void text_field::
select_all_text (
)
{
auto_mutex M(m);
on_select_all();
}
// ----------------------------------------------------------------------------------------
void text_field::
on_cut (
)
{
on_copy();
on_delete_selected();
}
// ----------------------------------------------------------------------------------------
void text_field::
on_copy (
)
{
if (highlight_start <= highlight_end)
{
put_on_clipboard(text_.substr(highlight_start, highlight_end-highlight_start+1));
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_paste (
)
{
ustring temp_str;
get_from_clipboard(temp_str);
// If this is a multi line string then just take the first line.
ustring::size_type pos = temp_str.find_first_of('\n');
if (pos != ustring::npos)
{
temp_str = temp_str.substr(0,pos);
}
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + temp_str +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
move_cursor(highlight_start+temp_str.size());
highlight_start = 0;
highlight_end = -1;
parent.invalidate_rectangle(rect);
on_no_text_selected();
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
text_ = text_.substr(0,cursor_pos) + temp_str +
text_.substr(cursor_pos,text_.size()-cursor_pos);
move_cursor(cursor_pos+temp_str.size());
// send out the text modified event
if (temp_str.size() != 0 && text_modified_handler.is_set())
text_modified_handler();
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_select_all (
)
{
move_cursor(static_cast<long>(text_.size()));
highlight_start = 0;
highlight_end = static_cast<long>(text_.size()-1);
if (highlight_start <= highlight_end)
on_text_is_selected();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void text_field::
on_delete_selected (
)
{
if (highlight_start <= highlight_end)
{
text_ = text_.erase(highlight_start,highlight_end-highlight_start+1);
move_cursor(highlight_start);
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_text_is_selected (
)
{
right_click_menu.menu().enable_menu_item(0);
right_click_menu.menu().enable_menu_item(1);
right_click_menu.menu().enable_menu_item(3);
}
// ----------------------------------------------------------------------------------------
void text_field::
on_no_text_selected (
)
{
right_click_menu.menu().disable_menu_item(0);
right_click_menu.menu().disable_menu_item(1);
right_click_menu.menu().disable_menu_item(3);
}
// ----------------------------------------------------------------------------------------
void text_field::
show (
)
{
drawable::show();
right_click_menu.show();
}
// ----------------------------------------------------------------------------------------
void text_field::
disable (
)
{
auto_mutex M(m);
drawable::disable();
t.stop();
has_focus = false;
cursor_visible = false;
right_click_menu.disable();
}
// ----------------------------------------------------------------------------------------
void text_field::
hide (
)
{
auto_mutex M(m);
drawable::hide();
t.stop();
has_focus = false;
cursor_visible = false;
}
// ----------------------------------------------------------------------------------------
void text_field::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
// adjust the height of this text field so that it is appropriate for the current
// font size
rect.set_bottom(rect.top() + mfont->height()+ (style->get_padding(*mfont))*2);
set_text(text_);
right_click_menu.set_rect(get_text_rect());
}
// ----------------------------------------------------------------------------------------
void text_field::
draw (
const canvas& c
) const
{
rectangle area = rect.intersect(c);
if (area.is_empty())
return;
style->draw_text_field(c,rect,get_text_rect(), enabled, *mfont, text_, cursor_x, text_pos,
text_color_, bg_color_, has_focus, cursor_visible, highlight_start,
highlight_end);
}
// ----------------------------------------------------------------------------------------
void text_field::
set_text (
const std::string& text
)
{
set_text(convert_mbstring_to_wstring(text));
}
void text_field::
set_text (
const std::wstring& text
)
{
set_text(convert_wstring_to_utf32(text));
}
void text_field::
set_text (
const dlib::ustring& text
)
{
DLIB_ASSERT ( text.find_first_of('\n') == std::string::npos ,
"\tvoid text_field::set_text()"
<< "\n\ttext: " << narrow(text) );
auto_mutex M(m);
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
text_ = text.c_str();
move_cursor(0);
highlight_start = 0;
highlight_end = -1;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const std::string text_field::
text (
) const
{
std::string temp = convert_wstring_to_mbstring(wtext());
return temp;
}
const std::wstring text_field::
wtext (
) const
{
std::wstring temp = convert_utf32_to_wstring(utext());
return temp;
}
const dlib::ustring text_field::
utext (
) const
{
auto_mutex M(m);
// do this to get rid of any reference counting that may be present in
// the dlib::ustring implementation.
dlib::ustring temp = text_.c_str();
return temp;
}
// ----------------------------------------------------------------------------------------
void text_field::
set_width (
unsigned long width
)
{
auto_mutex M(m);
if (width < style->get_padding(*mfont)*2)
return;
rectangle old(rect);
rect.set_right(rect.left() + width - 1);
right_click_menu.set_rect(get_text_rect());
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
void text_field::
set_pos (
long x,
long y
)
{
drawable::set_pos(x,y);
right_click_menu.set_rect(get_text_rect());
}
// ----------------------------------------------------------------------------------------
void text_field::
set_background_color (
const rgb_pixel color
)
{
auto_mutex M(m);
bg_color_ = color;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_field::
background_color (
) const
{
auto_mutex M(m);
return bg_color_;
}
// ----------------------------------------------------------------------------------------
void text_field::
set_text_color (
const rgb_pixel color
)
{
auto_mutex M(m);
text_color_ = color;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_field::
text_color (
) const
{
auto_mutex M(m);
return text_color_;
}
// ----------------------------------------------------------------------------------------
void text_field::
on_mouse_move (
unsigned long state,
long x,
long y
)
{
if (!enabled || hidden || !has_focus)
{
return;
}
if (state & base_window::LEFT)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
unsigned long new_pos = mfont->compute_cursor_pos(get_text_rect(),text_,x,y,text_pos);
if (static_cast<long>(new_pos) != cursor_pos)
{
move_cursor(new_pos);
parent.invalidate_rectangle(rect);
}
}
else if (shift_pos != -1)
{
shift_pos = -1;
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_mouse_up (
unsigned long btn,
unsigned long,
long ,
long
)
{
if (!enabled || hidden)
return;
if (btn == base_window::LEFT)
shift_pos = -1;
}
// ----------------------------------------------------------------------------------------
void text_field::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool double_clicked
)
{
using namespace std;
if (!enabled || hidden || btn != (unsigned long)base_window::LEFT)
return;
if (rect.contains(x,y))
{
has_focus = true;
cursor_visible = true;
parent.invalidate_rectangle(rect);
t.start();
if (double_clicked)
{
// highlight the double clicked word
string::size_type first, last;
const ustring ustr = convert_utf8_to_utf32(std::string(" \t\n"));
first = text_.substr(0,cursor_pos).find_last_of(ustr.c_str());
last = text_.find_first_of(ustr.c_str(),cursor_pos);
long f = static_cast<long>(first);
long l = static_cast<long>(last);
if (first == string::npos)
f = -1;
if (last == string::npos)
l = static_cast<long>(text_.size());
++f;
--l;
move_cursor(l+1);
highlight_start = f;
highlight_end = l;
on_text_is_selected();
}
else
{
if (state & base_window::SHIFT)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
else
{
shift_pos = cursor_pos;
}
}
bool at_end = false;
if (cursor_pos == 0 || cursor_pos == static_cast<long>(text_.size()))
at_end = true;
const long old_pos = cursor_pos;
unsigned long new_pos = mfont->compute_cursor_pos(get_text_rect(),text_,x,y,text_pos);
if (static_cast<long>(new_pos) != cursor_pos)
{
move_cursor(new_pos);
parent.invalidate_rectangle(rect);
}
shift_pos = cursor_pos;
if (at_end && cursor_pos == old_pos)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
}
else if (has_focus)
{
t.stop();
has_focus = false;
cursor_visible = false;
shift_pos = -1;
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
if (focus_lost_handler.is_set())
focus_lost_handler();
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
// If the right click menu is up then we don't want to do anything with
// the keyboard ourselves. Let the popup menu use the keyboard for now.
if (right_click_menu.popup_menu_visible())
return;
const ustring space_str = convert_utf8_to_utf32(std::string(" \t\n"));
const bool shift = (state&base_window::KBD_MOD_SHIFT) != 0;
const bool ctrl = (state&base_window::KBD_MOD_CONTROL) != 0;
if (has_focus && enabled && !hidden)
{
if (shift && is_printable == false)
{
if (shift_pos == -1)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
else
{
shift_pos = cursor_pos;
}
}
}
else
{
shift_pos = -1;
}
if (key == base_window::KEY_LEFT ||
key == base_window::KEY_UP)
{
if (cursor_pos != 0)
{
unsigned long new_pos;
if (ctrl)
{
// find the first non-whitespace to our left
std::string::size_type pos = text_.find_last_not_of(space_str.c_str(),cursor_pos);
if (pos != std::string::npos)
{
pos = text_.find_last_of(space_str.c_str(),pos);
if (pos != std::string::npos)
new_pos = static_cast<unsigned long>(pos);
else
new_pos = 0;
}
else
{
new_pos = 0;
}
}
else
{
new_pos = cursor_pos-1;
}
move_cursor(new_pos);
}
else if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_RIGHT ||
key == base_window::KEY_DOWN)
{
if (cursor_pos != static_cast<long>(text_.size()))
{
unsigned long new_pos;
if (ctrl)
{
// find the first non-whitespace to our left
std::string::size_type pos = text_.find_first_not_of(space_str.c_str(),cursor_pos);
if (pos != std::string::npos)
{
pos = text_.find_first_of(space_str.c_str(),pos);
if (pos != std::string::npos)
new_pos = static_cast<unsigned long>(pos+1);
else
new_pos = static_cast<unsigned long>(text_.size());
}
else
{
new_pos = static_cast<unsigned long>(text_.size());
}
}
else
{
new_pos = cursor_pos+1;
}
move_cursor(new_pos);
}
else if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (is_printable)
{
if (ctrl)
{
if (key == 'a')
{
on_select_all();
}
else if (key == 'c')
{
on_copy();
}
else if (key == 'v')
{
on_paste();
}
else if (key == 'x')
{
on_cut();
}
}
else if (key != '\n')
{
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + static_cast<unichar>(key) +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
move_cursor(highlight_start+1);
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
else
{
text_ = text_.substr(0,cursor_pos) + static_cast<unichar>(key) +
text_.substr(cursor_pos,text_.size()-cursor_pos);
move_cursor(cursor_pos+1);
}
unsigned long height;
mfont->compute_size(text_,text_width,height,text_pos);
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else if (key == '\n')
{
if (enter_key_handler.is_set())
enter_key_handler();
}
}
else if (key == base_window::KEY_BACKSPACE)
{
// if something is highlighted then delete that
if (highlight_start <= highlight_end)
{
on_delete_selected();
}
else if (cursor_pos != 0)
{
text_ = text_.erase(cursor_pos-1,1);
move_cursor(cursor_pos-1);
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
// do this just so it repaints itself right
move_cursor(cursor_pos);
}
unsigned long height;
mfont->compute_size(text_,text_width,height,text_pos);
parent.invalidate_rectangle(rect);
}
else if (key == base_window::KEY_DELETE)
{
// if something is highlighted then delete that
if (highlight_start <= highlight_end)
{
on_delete_selected();
}
else if (cursor_pos != static_cast<long>(text_.size()))
{
text_ = text_.erase(cursor_pos,1);
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
// do this just so it repaints itself right
move_cursor(cursor_pos);
}
parent.invalidate_rectangle(rect);
unsigned long height;
mfont->compute_size(text_,text_width,height,text_pos);
}
else if (key == base_window::KEY_HOME)
{
move_cursor(0);
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_END)
{
move_cursor(static_cast<unsigned long>(text_.size()));
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
cursor_visible = true;
recent_movement = true;
}
}
// ----------------------------------------------------------------------------------------
void text_field::
on_string_put(
const std::wstring &str
)
{
if (has_focus && enabled && !hidden){
ustring ustr = convert_wstring_to_utf32(str);
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + ustr +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
move_cursor(highlight_start+ustr.size());
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
else
{
text_ = text_.substr(0,cursor_pos) + ustr +
text_.substr(cursor_pos,text_.size()-cursor_pos);
move_cursor(cursor_pos+ustr.size());
}
unsigned long height;
mfont->compute_size(text_,text_width,height,text_pos);
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
}
// ----------------------------------------------------------------------------------------
void text_field::
move_cursor (
unsigned long pos
)
{
using namespace std;
const long old_cursor_pos = cursor_pos;
if (text_pos >= pos)
{
// the cursor should go all the way to the left side of the text
if (pos >= 6)
text_pos = pos-6;
else
text_pos = 0;
cursor_pos = pos;
unsigned long height;
mfont->compute_size(text_,text_width,height,text_pos);
unsigned long width;
unsigned long new_x = style->get_padding(*mfont);
if (static_cast<long>(cursor_pos)-1 >= static_cast<long>(text_pos))
{
mfont->compute_size(text_,width,height,text_pos,cursor_pos-1);
if (cursor_pos != 0)
new_x += width - mfont->right_overflow();
}
cursor_x = new_x;
}
else
{
unsigned long height;
unsigned long width;
mfont->compute_size(text_,width,height,text_pos,pos-1);
unsigned long new_x = style->get_padding(*mfont) +
width - mfont->right_overflow();
// move the text to the left if necessary
if (new_x + 4 > rect.width())
{
while (new_x > rect.width() - rect.width()/5)
{
new_x -= (*mfont)[text_[text_pos]].width();
++text_pos;
}
}
cursor_x = new_x;
cursor_pos = pos;
mfont->compute_size(text_,text_width,height,text_pos);
}
parent.set_im_pos(rect.left()+cursor_x, rect.top());
if (old_cursor_pos != cursor_pos)
{
if (shift_pos != -1)
{
highlight_start = std::min(shift_pos,cursor_pos);
highlight_end = std::max(shift_pos,cursor_pos)-1;
}
else
{
highlight_start = 0;
highlight_end = -1;
}
if (highlight_start > highlight_end)
on_no_text_selected();
else
on_text_is_selected();
recent_movement = true;
cursor_visible = true;
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// tabbed_display object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
tabbed_display::
tabbed_display(
drawable_window& w
) :
drawable(w,MOUSE_CLICK),
selected_tab_(0),
left_pad(6),
right_pad(4),
top_pad(3),
bottom_pad(3)
{
rect = rectangle(0,0,40,mfont->height()+top_pad+bottom_pad);
enable_events();
tabs.set_max_size(1);
tabs.set_size(1);
}
// ----------------------------------------------------------------------------------------
tabbed_display::
~tabbed_display(
)
{
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_pos (
long x,
long y
)
{
auto_mutex M(m);
// we have to adjust the positions of all the tab rectangles
const long xdelta = rect.left() - x;
const long ydelta = rect.top() - y;
for (unsigned long i = 0; i < tabs.size(); ++i)
{
tabs[i].rect.set_left(tabs[i].rect.left()+xdelta);
tabs[i].rect.set_right(tabs[i].rect.right()+xdelta);
tabs[i].rect.set_top(tabs[i].rect.top()+ydelta);
tabs[i].rect.set_bottom(tabs[i].rect.bottom()+ydelta);
// adjust the position of the group associated with this tab if it exists
if (tabs[i].group)
tabs[i].group->set_pos(x+3, y+mfont->height()+top_pad+bottom_pad+3);
}
drawable::set_pos(x,y);
recompute_tabs();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
fit_to_contents (
)
{
auto_mutex M(m);
rectangle new_rect;
point p(rect.left(),rect.top());
new_rect += p;
for (unsigned long i = 0; i < tabs.size(); ++i)
{
if (tabs[i].group)
{
tabs[i].group->fit_to_contents();
new_rect += tabs[i].group->get_rect();
}
}
// and give the new rect an additional 4 pixels on the bottom and right sides
// so that the contents to hit the edge of the tabbed display
new_rect = resize_rect(new_rect, new_rect.width()+4, new_rect.height()+4);
parent.invalidate_rectangle(new_rect+rect);
rect = new_rect;
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_size (
unsigned long width,
unsigned long height
)
{
auto_mutex M(m);
rectangle old(rect);
const long x = rect.left();
const long y = rect.top();
rect.set_right(x+width-1);
rect.set_bottom(y+height-1);
recompute_tabs();
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_number_of_tabs (
unsigned long num
)
{
auto_mutex M(m);
DLIB_ASSERT ( num > 0 ,
"\tvoid tabbed_display::set_number_of_tabs()"
<< "\n\tnum: " << num );
tabs.set_max_size(num);
tabs.set_size(num);
selected_tab_ = 0;
recompute_tabs();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
unsigned long tabbed_display::
number_of_tabs (
) const
{
auto_mutex M(m);
return tabs.size();
}
// ----------------------------------------------------------------------------------------
const std::string tabbed_display::
tab_name (
unsigned long idx
) const
{
return convert_wstring_to_mbstring(tab_wname(idx));
}
const std::wstring tabbed_display::
tab_wname (
unsigned long idx
) const
{
return convert_utf32_to_wstring(tab_uname(idx));
}
const dlib::ustring& tabbed_display::
tab_uname (
unsigned long idx
) const
{
auto_mutex M(m);
DLIB_ASSERT ( idx < number_of_tabs() ,
"\tvoid tabbed_display::tab_name()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_tabs(): " << number_of_tabs() );
return tabs[idx].name;
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_tab_name (
unsigned long idx,
const std::string& new_name
)
{
set_tab_name(idx, convert_mbstring_to_wstring(new_name));
}
void tabbed_display::
set_tab_name (
unsigned long idx,
const std::wstring& new_name
)
{
set_tab_name(idx, convert_wstring_to_utf32(new_name));
}
void tabbed_display::
set_tab_name (
unsigned long idx,
const dlib::ustring& new_name
)
{
auto_mutex M(m);
DLIB_ASSERT ( idx < number_of_tabs() ,
"\tvoid tabbed_display::set_tab_name()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_tabs(): " << number_of_tabs() );
tabs[idx].name = new_name;
// do this so that there isn't any reference counting going on
tabs[idx].name[0] = tabs[idx].name[0];
unsigned long height;
mfont->compute_size(new_name,tabs[idx].width,height);
recompute_tabs();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
on_mouse_down (
unsigned long btn,
unsigned long,
long x,
long y,
bool
)
{
if (rect.contains(x,y) && btn == base_window::LEFT && enabled && !hidden)
{
rectangle temp = rect;
const long offset = mfont->height() + bottom_pad + top_pad;
temp.set_bottom(rect.top()+offset);
if (temp.contains(x,y))
{
// now we have to figure out which tab was clicked
for (unsigned long i = 0; i < tabs.size(); ++i)
{
if (selected_tab_ != i && tabs[i].rect.contains(x,y) &&
tabs[selected_tab_].rect.contains(x,y) == false)
{
unsigned long old_idx = selected_tab_;
selected_tab_ = i;
recompute_tabs();
parent.invalidate_rectangle(temp);
// adjust the widget_group objects for these tabs if they exist
if (tabs[i].group)
tabs[i].group->show();
if (tabs[old_idx].group)
tabs[old_idx].group->hide();
if (event_handler.is_set())
event_handler(i,old_idx);
break;
}
}
}
}
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_tab_group (
unsigned long idx,
widget_group& group
)
{
auto_mutex M(m);
DLIB_ASSERT ( idx < number_of_tabs() ,
"\tvoid tabbed_display::set_tab_group()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_tabs(): " << number_of_tabs() );
tabs[idx].group = &group;
group.set_pos(rect.left()+3,rect.top()+mfont->height()+top_pad+bottom_pad+2);
if (idx == selected_tab_)
group.show();
else
group.hide();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
disable (
)
{
auto_mutex M(m);
if (tabs[selected_tab_].group)
tabs[selected_tab_].group->disable();
drawable::disable();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
enable (
)
{
auto_mutex M(m);
if (tabs[selected_tab_].group)
tabs[selected_tab_].group->enable();
drawable::enable();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
hide (
)
{
auto_mutex M(m);
if (tabs[selected_tab_].group)
tabs[selected_tab_].group->hide();
drawable::hide();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
show (
)
{
auto_mutex M(m);
if (tabs[selected_tab_].group)
tabs[selected_tab_].group->show();
drawable::show();
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
draw (
const canvas& c
) const
{
rectangle area = rect.intersect(c);
if (area.is_empty())
return;
// draw the main border first
rectangle main_box(rect.left(),rect.top()+mfont->height()+top_pad+bottom_pad,rect.right(),rect.bottom());
draw_button_up(c,main_box);
draw_pixel(c,point(main_box.right()-1,main_box.top()),rgb_pixel(128,128,128));
rgb_pixel color;
if (enabled)
{
color.red = 0;
color.green = 0;
color.blue = 0;
}
else
{
color.red = 128;
color.green = 128;
color.blue = 128;
}
// draw the tabs
for (unsigned long i = 0; i < tabs.size(); ++i)
{
if (selected_tab_ != i)
draw_tab(tabs[i].rect,c);
// draw the name string
rectangle temp = tabs[i].rect;
temp.set_top(temp.top()+top_pad);
temp.set_bottom(temp.bottom()+bottom_pad);
temp.set_left(temp.left()+left_pad);
temp.set_right(temp.right()+right_pad);
mfont->draw_string(c,temp,tabs[i].name,color);
}
draw_tab(tabs[selected_tab_].rect,c);
draw_line(c,
point(tabs[selected_tab_].rect.left()+1,
tabs[selected_tab_].rect.bottom()),
point(tabs[selected_tab_].rect.right()-2,
tabs[selected_tab_].rect.bottom()),
rgb_pixel(212,208,200));
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
draw_tab (
const rectangle& tab,
const canvas& c
) const
{
const rgb_pixel white(255,255,255);
const rgb_pixel background(212,208,200);
const rgb_pixel dark_gray(64,64,64);
const rgb_pixel gray(128,128,128);
draw_line(c,point(tab.left(),tab.top()+2),point(tab.left(),tab.bottom()),white);
draw_line(c,point(tab.left()+1,tab.top()+2),point(tab.left()+1,tab.bottom()),background);
draw_line(c,point(tab.right(),tab.top()+2),point(tab.right(),tab.bottom()),dark_gray);
draw_line(c,point(tab.right()-1,tab.top()+2),point(tab.right()-1,tab.bottom()),gray);
draw_line(c,point(tab.left()+2,tab.top()),point(tab.right()-2,tab.top()),white);
draw_pixel(c,point(tab.left()+1,tab.top()+1),white);
draw_pixel(c,point(tab.right()-1,tab.top()+1),dark_gray);
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
for (unsigned long i = 0; i < tabs.size(); ++i)
{
unsigned long height;
mfont->compute_size(tabs[i].name,tabs[i].width,height);
}
recompute_tabs();
set_pos(rect.left(), rect.top());
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void tabbed_display::
recompute_tabs (
)
{
const long offset = mfont->height() + bottom_pad + top_pad;
// figure out the size and position of all the tabs
rectangle sel_tab_rect, other_tab;
sel_tab_rect.set_top(rect.top());
sel_tab_rect.set_bottom(rect.top()+offset);
other_tab.set_top(rect.top()+2);
other_tab.set_bottom(rect.top()+offset-1);
long cur_x = rect.left();
for (unsigned long i = 0; i < tabs.size(); ++i)
{
const unsigned long str_width = tabs[i].width;
if (selected_tab_ != i)
{
other_tab.set_left(cur_x);
cur_x += left_pad + str_width + right_pad;
other_tab.set_right(cur_x);
tabs[i].rect = other_tab;
++cur_x;
}
else
{
if (i != 0)
sel_tab_rect.set_left(cur_x-2);
else
sel_tab_rect.set_left(cur_x);
cur_x += left_pad + str_width + right_pad;
if (i != tabs.size()-1)
sel_tab_rect.set_right(cur_x+2);
else
sel_tab_rect.set_right(cur_x);
++cur_x;
tabs[i].rect = sel_tab_rect;
}
}
// make sure this object is wide enough
const rectangle& last = tabs[tabs.size()-1].rect;
const rectangle& first = tabs[0].rect;
rect = last + rect + first;
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// named_rectangle object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
named_rectangle::
named_rectangle(
drawable_window& w
) :
drawable(w),
name_width(0),
name_height(0)
{
make_name_fit_in_rect();
enable_events();
}
// ----------------------------------------------------------------------------------------
named_rectangle::
~named_rectangle(
)
{
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
set_size (
unsigned long width,
unsigned long height
)
{
auto_mutex M(m);
rectangle old(rect);
const long x = rect.left();
const long y = rect.top();
rect.set_right(x+width-1);
rect.set_bottom(y+height-1);
make_name_fit_in_rect();
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
wrap_around (
const rectangle& r
)
{
auto_mutex M(m);
rectangle old(rect);
const unsigned long pad = name_height/2;
rect = rectangle(r.left()-pad, r.top()-name_height*4/3, r.right()+pad, r.bottom()+pad);
make_name_fit_in_rect();
parent.invalidate_rectangle(rect+old);
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
mfont->compute_size(name_,name_width,name_height);
make_name_fit_in_rect();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
make_name_fit_in_rect (
)
{
// make sure the named rectangle is big enough to contain the name
const unsigned long wtemp = mfont->height() + name_width;
const unsigned long htemp = mfont->height() + name_height;
if (rect.width() < wtemp)
rect.set_right(rect.left() + wtemp - 1 );
if (rect.height() < htemp)
rect.set_bottom(rect.bottom() + htemp - 1 );
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
set_name (
const std::string& name
)
{
set_name(convert_mbstring_to_wstring(name));
}
void named_rectangle::
set_name (
const std::wstring& name
)
{
set_name(convert_wstring_to_utf32(name));
}
void named_rectangle::
set_name (
const dlib::ustring& name
)
{
auto_mutex M(m);
name_ = name.c_str();
mfont->compute_size(name_,name_width,name_height);
make_name_fit_in_rect();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const std::string named_rectangle::
name (
) const
{
return convert_wstring_to_mbstring(wname());
}
const std::wstring named_rectangle::
wname (
) const
{
return convert_utf32_to_wstring(uname());
}
const dlib::ustring named_rectangle::
uname (
) const
{
auto_mutex M(m);
return dlib::ustring(name_.c_str());
}
// ----------------------------------------------------------------------------------------
void named_rectangle::
draw (
const canvas& c
) const
{
rectangle area = rect.intersect(c);
if (area.is_empty())
return;
const unsigned long gap = mfont->height()/2;
rectangle strrect = rect;
strrect.set_left(rect.left() + gap);
const unsigned long rtop = rect.top() + name_height/2;
const rgb_pixel white(255,255,255);
const rgb_pixel gray(128,128,128);
mfont->draw_string(c,strrect,name_);
draw_line(c,point(rect.left(), rtop),
point(rect.left()+gap/2, rtop), gray);
draw_line(c,point(rect.left(), rtop),
point(rect.left(), rect.bottom()-1), gray);
draw_line(c,point(rect.left(), rect.bottom()-1),
point(rect.right()-1, rect.bottom()-1), gray);
draw_line(c,point(rect.right()-1, rtop),
point(rect.right()-1, rect.bottom()-2), gray);
draw_line(c,point(strrect.left() + name_width + 2, rtop),
point(rect.right()-1, rtop), gray);
draw_line(c,point(strrect.left() + name_width + 2, rtop+1),
point( rect.right()-2, rtop+1), white);
draw_line(c,point(rect.right(), rtop),
point(rect.right(), rect.bottom()), white);
draw_line(c,point(rect.left(), rect.bottom()),
point(rect.right(), rect.bottom()), white);
draw_line(c,point(rect.left()+1, rtop+1),
point(rect.left()+1, rect.bottom()-2), white);
draw_line(c,point(rect.left()+1, rtop+1),
point(rect.left()+gap/2, rtop+1), white);
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// class mouse_tracker
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
mouse_tracker::
mouse_tracker(
drawable_window& w
) :
draggable(w),
offset(18),
nr(w),
x_label(w),
y_label(w),
click_x(-1),
click_y(-1)
{
set_draggable_area(rectangle(0,0,500,500));
x_label.set_text("x: ");
y_label.set_text("y: ");
nr.set_name("mouse position");
x_label.set_pos(offset,offset);
y_label.set_pos(x_label.get_rect().left(), x_label.get_rect().bottom()+3);
nr.wrap_around(x_label.get_rect() + y_label.get_rect());
rect = nr.get_rect();
set_z_order(2000000000);
x_label.set_z_order(2000000001);
y_label.set_z_order(2000000001);
nr.set_z_order(2000000001);
enable_events();
}
// ----------------------------------------------------------------------------------------
mouse_tracker::
~mouse_tracker(
)
{
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
nr.set_main_font(f);
x_label.set_main_font(f);
y_label.set_main_font(f);
mfont = f;
nr.wrap_around(x_label.get_rect() + y_label.get_rect());
rect = nr.get_rect();
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
set_pos (
long x,
long y
)
{
draggable::set_pos(x,y);
nr.set_pos(x,y);
x_label.set_pos(rect.left()+offset,rect.top()+offset);
y_label.set_pos(x_label.get_rect().left(), x_label.get_rect().bottom()+3);
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
show (
)
{
draggable::show();
nr.show();
x_label.show();
y_label.show();
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
hide (
)
{
draggable::hide();
nr.hide();
x_label.hide();
y_label.hide();
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
enable (
)
{
draggable::enable();
nr.enable();
x_label.enable();
y_label.enable();
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
disable (
)
{
draggable::disable();
nr.disable();
x_label.disable();
y_label.disable();
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool double_clicked
)
{
draggable::on_mouse_down(btn,state,x,y,double_clicked);
if ((state & base_window::SHIFT) && (btn == base_window::LEFT) && enabled && !hidden)
{
parent.invalidate_rectangle(rectangle(x,y,x,y));
parent.invalidate_rectangle(rectangle(click_x,click_y,click_x,click_y));
click_x = x;
click_y = y;
y_label.set_text("y: 0");
x_label.set_text("x: 0");
}
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
on_mouse_move (
unsigned long state,
long x,
long y
)
{
if (!hidden && enabled)
{
parent.invalidate_rectangle(rect);
draggable::on_mouse_move(state,x,y);
long dx = 0;
long dy = 0;
if (click_x != -1)
dx = click_x;
if (click_y != -1)
dy = click_y;
sout.str("");
sout << "y: " << y - dy;
y_label.set_text(sout.str());
sout.str("");
sout << "x: " << x - dx;
x_label.set_text(sout.str());
}
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
on_drag (
)
{
nr.set_pos(rect.left(),rect.top());
x_label.set_pos(rect.left()+offset,rect.top()+offset);
y_label.set_pos(x_label.get_rect().left(), x_label.get_rect().bottom()+3);
long x = 0;
long y = 0;
if (click_x != -1)
x = click_x;
if (click_y != -1)
y = click_y;
sout.str("");
sout << "y: " << lasty - y;
y_label.set_text(sout.str());
sout.str("");
sout << "x: " << lastx - x;
x_label.set_text(sout.str());
}
// ----------------------------------------------------------------------------------------
void mouse_tracker::
draw (
const canvas& c
) const
{
fill_rect(c, rect,rgb_pixel(212,208,200));
draw_pixel(c, point(click_x,click_y),rgb_pixel(255,0,0));
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// class list_box
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
namespace list_box_helper{
template <typename S>
list_box<S>::
list_box(
drawable_window& w
) :
scrollable_region(w,MOUSE_WHEEL|MOUSE_CLICK),
ms_enabled(false),
last_selected(0)
{
set_vertical_scroll_increment(mfont->height());
set_horizontal_scroll_increment(mfont->height());
style.reset(new list_box_style_default());
enable_events();
}
// ----------------------------------------------------------------------------------------
template <typename S>
list_box<S>::
~list_box(
)
{
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
// recompute the sizes of all the items
for (unsigned long i = 0; i < items.size(); ++i)
{
mfont->compute_size(items[i].name,items[i].width, items[i].height);
}
set_vertical_scroll_increment(mfont->height());
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
template <typename S>
bool list_box<S>::
is_selected (
unsigned long index
) const
{
auto_mutex M(m);
DLIB_ASSERT ( index < size() ,
"\tbool list_box::is_selected(index)"
<< "\n\tindex: " << index
<< "\n\tsize(): " << size() );
return items[index].is_selected;
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
select (
unsigned long index
)
{
auto_mutex M(m);
DLIB_ASSERT ( index < size() ,
"\tvoid list_box::select(index)"
<< "\n\tindex: " << index
<< "\n\tsize(): " << size() );
last_selected = index;
items[index].is_selected = true;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
unselect (
unsigned long index
)
{
auto_mutex M(m);
DLIB_ASSERT ( index < size() ,
"\tvoid list_box::unselect(index)"
<< "\n\tindex: " << index
<< "\n\tsize(): " << size() );
items[index].is_selected = false;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
template <typename S>
const S& list_box<S>::operator [] (
unsigned long index
) const
{
auto_mutex M(m);
DLIB_ASSERT ( index < size() ,
"\tconst std::string& list_box::operator[](index)"
<< "\n\tindex: " << index
<< "\n\tsize(): " << size() );
return items[index].name;
}
// ----------------------------------------------------------------------------------------
template <typename S>
bool list_box<S>::
multiple_select_enabled (
) const
{
auto_mutex M(m);
return ms_enabled;
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
enable_multiple_select (
)
{
auto_mutex M(m);
ms_enabled = true;
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
disable_multiple_select (
)
{
auto_mutex M(m);
ms_enabled = false;
}
// ----------------------------------------------------------------------------------------
template <typename S>
bool list_box<S>::
at_start (
) const
{
auto_mutex M(m);
return items.at_start();
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
reset (
) const
{
auto_mutex M(m);
items.reset();
}
// ----------------------------------------------------------------------------------------
template <typename S>
bool list_box<S>::
current_element_valid (
) const
{
auto_mutex M(m);
return items.current_element_valid();
}
// ----------------------------------------------------------------------------------------
template <typename S>
const S &list_box<S>::
element (
) const
{
auto_mutex M(m);
DLIB_ASSERT ( current_element_valid() ,
"\tconst std::string& list_box::element()"
);
return items.element().name;
}
// ----------------------------------------------------------------------------------------
template <typename S>
const S &list_box<S>::
element (
)
{
auto_mutex M(m);
DLIB_ASSERT ( current_element_valid() ,
"\tconst std::string& list_box::element()"
);
return items.element().name;
}
// ----------------------------------------------------------------------------------------
template <typename S>
bool list_box<S>::
move_next (
) const
{
auto_mutex M(m);
return items.move_next();
}
// ----------------------------------------------------------------------------------------
template <typename S>
unsigned long list_box<S>::
size (
) const
{
auto_mutex M(m);
return items.size();
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
draw (
const canvas& c
) const
{
scrollable_region::draw(c);
rectangle area = display_rect().intersect(c);
if (area.is_empty())
return;
style->draw_list_box_background(c, display_rect(), enabled);
long y = total_rect().top();
for (unsigned long i = 0; i < items.size(); ++i)
{
if (y+(long)items[i].height <= area.top())
{
y += items[i].height;
continue;
}
rectangle r(total_rect().left(), y, display_rect().right(), y+items[i].height-1);
style->draw_list_box_item(c,r, display_rect(), enabled, *mfont, items[i].name, items[i].is_selected);
y += items[i].height;
if (y > area.bottom())
break;
}
}
// ----------------------------------------------------------------------------------------
template <typename S>
void list_box<S>::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool is_double_click
)
{
if (display_rect().contains(x,y) && btn == base_window::LEFT && enabled && !hidden )
{
if ( ms_enabled == false ||
((!(state&base_window::CONTROL)) && !(state&base_window::SHIFT)))
{
items.reset();
while (items.move_next())
{
items.element().is_selected = false;
}
}
y -= total_rect().top();
long h = 0;
for (unsigned long i = 0; i < items.size(); ++i)
{
h += items[i].height;
if (h >= y)
{
if (ms_enabled)
{
if (state&base_window::CONTROL)
{
items[i].is_selected = !items[i].is_selected;
if (items[i].is_selected)
last_selected = i;
}
else if (state&base_window::SHIFT)
{
// we want to select everything between (and including) the
// current thing clicked and last_selected.
const unsigned long first = std::min(i,last_selected);
const unsigned long last = std::max(i,last_selected);
for (unsigned long j = first; j <= last; ++j)
items[j].is_selected = true;
}
else
{
items[i].is_selected = true;
last_selected = i;
if (is_double_click && event_handler.is_set())
event_handler(i);
else if (single_click_event_handler.is_set())
single_click_event_handler(i);
}
}
else
{
items[i].is_selected = true;
last_selected = i;
if (is_double_click && event_handler.is_set())
event_handler(i);
else if (single_click_event_handler.is_set())
single_click_event_handler(i);
}
break;
}
}
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
template <typename S>
unsigned long list_box<S>::
get_selected (
) const
{
auto_mutex M(m);
DLIB_ASSERT ( multiple_select_enabled() == false,
"\tunsigned long list_box::get_selected()"
);
for (unsigned long i = 0; i < items.size(); ++i)
{
if (items[i].is_selected)
return i;
}
return items.size();
}
// ----------------------------------------------------------------------------------------
// making instance of template
template class list_box<std::string>;
template class list_box<std::wstring>;
template class list_box<dlib::ustring>;
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// function message_box()
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
namespace message_box_helper
{
void box_win::
initialize (
)
{
msg.set_pos(20,20);
msg.set_text(message);
rectangle msg_rect = msg.get_rect();
btn_ok.set_name("OK");
btn_ok.set_size(60,btn_ok.height());
if (msg_rect.width() >= 60)
btn_ok.set_pos(msg_rect.width()/2+msg_rect.left()-btn_ok.width()/2,msg_rect.bottom()+15);
else
btn_ok.set_pos(20,msg_rect.bottom()+15);
btn_ok.set_click_handler(*this,&box_win::on_click);
rectangle size = btn_ok.get_rect() + msg_rect;
set_size(size.right()+20,size.bottom()+20);
show();
set_title(title);
}
// ------------------------------------------------------------------------------------
box_win::
box_win (
const std::string& title_,
const std::string& message_
) :
drawable_window(false),
title(convert_mbstring_to_wstring(title_)),
message(convert_mbstring_to_wstring(message_)),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
box_win::
box_win (
const std::wstring& title_,
const std::wstring& message_
) :
drawable_window(false),
title(title_),
message(message_),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
box_win::
box_win (
const dlib::ustring& title_,
const dlib::ustring& message_
) :
drawable_window(false),
title(convert_utf32_to_wstring(title_)),
message(convert_utf32_to_wstring(message_)),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
box_win::
~box_win (
)
{
close_window();
}
// ------------------------------------------------------------------------------------
void box_win::
deleter_thread (
void* param
)
{
// The point of this extra event_handler stuff is to allow the user
// to end the program from within the callback. So we want to destroy the
// window *before* we call their callback.
box_win& w = *static_cast<box_win*>(param);
w.close_window();
any_function<void()> event_handler(w.event_handler);
delete &w;
if (event_handler.is_set())
event_handler();
}
// ------------------------------------------------------------------------------------
void box_win::
on_click (
)
{
hide();
create_new_thread(&deleter_thread,this);
}
// ------------------------------------------------------------------------------------
base_window::on_close_return_code box_win::
on_window_close (
)
{
// The point of this extra event_handler stuff is to allow the user
// to end the program within the callback. So we want to destroy the
// window *before* we call their callback.
any_function<void()> event_handler_copy(event_handler);
delete this;
if (event_handler_copy.is_set())
event_handler_copy();
return CLOSE_WINDOW;
}
// ------------------------------------------------------------------------------------
// ------------------------------------------------------------------------------------
// ------------------------------------------------------------------------------------
void blocking_box_win::
initialize (
)
{
msg.set_pos(20,20);
msg.set_text(message);
rectangle msg_rect = msg.get_rect();
btn_ok.set_name("OK");
btn_ok.set_size(60,btn_ok.height());
if (msg_rect.width() >= 60)
btn_ok.set_pos(msg_rect.width()/2+msg_rect.left()-btn_ok.width()/2,msg_rect.bottom()+15);
else
btn_ok.set_pos(20,msg_rect.bottom()+15);
btn_ok.set_click_handler(*this,&blocking_box_win::on_click);
rectangle size = btn_ok.get_rect() + msg_rect;
set_size(size.right()+20,size.bottom()+20);
set_title(title);
show();
}
// ------------------------------------------------------------------------------------
blocking_box_win::
blocking_box_win (
const std::string& title_,
const std::string& message_
) :
drawable_window(false),
title(convert_mbstring_to_wstring(title_)),
message(convert_mbstring_to_wstring(message_)),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
blocking_box_win::
blocking_box_win (
const std::wstring& title_,
const std::wstring& message_
) :
drawable_window(false),
title(title_),
message(message_),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
blocking_box_win::
blocking_box_win (
const dlib::ustring& title_,
const dlib::ustring& message_
) :
drawable_window(false),
title(convert_utf32_to_wstring(title_)),
message(convert_utf32_to_wstring(message_)),
msg(*this),
btn_ok(*this)
{
initialize();
}
// ------------------------------------------------------------------------------------
blocking_box_win::
~blocking_box_win (
)
{
close_window();
}
// ------------------------------------------------------------------------------------
void blocking_box_win::
on_click (
)
{
close_window();
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// function open_file_box()
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
namespace open_file_box_helper
{
box_win::
box_win (
const std::string& title,
bool has_text_field
) :
lbl_dirs(*this),
lbl_files(*this),
lbl_file_name(*this),
lb_dirs(*this),
lb_files(*this),
btn_ok(*this),
btn_cancel(*this),
btn_root(*this),
tf_file_name(*this)
{
if (has_text_field == false)
{
tf_file_name.hide();
lbl_file_name.hide();
}
else
{
lbl_file_name.set_text("File: ");
}
cur_dir = -1;
set_size(500,300);
lbl_dirs.set_text("Directories:");
lbl_files.set_text("Files:");
btn_ok.set_name("Ok");
btn_cancel.set_name("Cancel");
btn_root.set_name("/");
btn_root.set_click_handler(*this,&box_win::on_root_click);
btn_cancel.set_click_handler(*this,&box_win::on_cancel_click);
btn_ok.set_click_handler(*this,&box_win::on_open_click);
lb_dirs.set_double_click_handler(*this,&box_win::on_dirs_click);
lb_files.set_click_handler(*this,&box_win::on_files_click);
lb_files.set_double_click_handler(*this,&box_win::on_files_double_click);
btn_root.set_pos(5,5);
set_sizes();
set_title(title);
on_root_click();
// make it so that the file box starts out in our current working
// directory
std::string full_name(get_current_dir());
while (full_name.size() > 0)
{
std::string::size_type pos = full_name.find_first_of("\\/");
std::string left(full_name.substr(0,pos));
if (pos != std::string::npos)
full_name = full_name.substr(pos+1);
else
full_name.clear();
if (left.size() > 0)
enter_folder(left);
}
show();
}
// ------------------------------------------------------------------------------------
box_win::
~box_win (
)
{
close_window();
}
// ------------------------------------------------------------------------------------
void box_win::
set_sizes(
)
{
unsigned long width, height;
get_size(width,height);
if (lbl_file_name.is_hidden())
{
lbl_dirs.set_pos(0,btn_root.bottom()+5);
lb_dirs.set_pos(0,lbl_dirs.bottom());
lb_dirs.set_size(width/2,height-lb_dirs.top()-btn_cancel.height()-10);
lbl_files.set_pos(lb_dirs.right(),btn_root.bottom()+5);
lb_files.set_pos(lb_dirs.right(),lbl_files.bottom());
lb_files.set_size(width-lb_files.left(),height-lb_files.top()-btn_cancel.height()-10);
btn_ok.set_pos(width - btn_ok.width()-25,lb_files.bottom()+5);
btn_cancel.set_pos(btn_ok.left() - btn_cancel.width()-5,lb_files.bottom()+5);
}
else
{
lbl_dirs.set_pos(0,btn_root.bottom()+5);
lb_dirs.set_pos(0,lbl_dirs.bottom());
lb_dirs.set_size(width/2,height-lb_dirs.top()-btn_cancel.height()-10-tf_file_name.height());
lbl_files.set_pos(lb_dirs.right(),btn_root.bottom()+5);
lb_files.set_pos(lb_dirs.right(),lbl_files.bottom());
lb_files.set_size(width-lb_files.left(),height-lb_files.top()-btn_cancel.height()-10-tf_file_name.height());
lbl_file_name.set_pos(lb_files.left(), lb_files.bottom()+8);
tf_file_name.set_pos(lbl_file_name.right(), lb_files.bottom()+5);
tf_file_name.set_width(width-tf_file_name.left()-5);
btn_ok.set_pos(width - btn_ok.width()-25,tf_file_name.bottom()+5);
btn_cancel.set_pos(btn_ok.left() - btn_cancel.width()-5,tf_file_name.bottom()+5);
}
}
// ------------------------------------------------------------------------------------
void box_win::
on_window_resized (
)
{
set_sizes();
}
// ------------------------------------------------------------------------------------
void box_win::
deleter_thread (
)
{
close_window();
delete this;
}
// ------------------------------------------------------------------------------------
void box_win::
enter_folder (
const std::string& folder_name
)
{
if (btn_root.is_checked())
btn_root.set_unchecked();
if (cur_dir != -1)
sob[cur_dir]->set_unchecked();
const std::string old_path = path;
const long old_cur_dir = cur_dir;
scoped_ptr<toggle_button> new_btn(new toggle_button(*this));
new_btn->set_name(folder_name);
new_btn->set_click_handler(*this,&box_win::on_path_button_click);
// remove any path buttons that won't be part of the path anymore
if (sob.size())
{
while (sob.size() > (unsigned long)(cur_dir+1))
{
scoped_ptr<toggle_button> junk;
sob.remove(cur_dir+1,junk);
}
}
if (sob.size())
new_btn->set_pos(sob[sob.size()-1]->right()+5,sob[sob.size()-1]->top());
else
new_btn->set_pos(btn_root.right()+5,btn_root.top());
cur_dir = sob.size();
sob.add(sob.size(),new_btn);
path += folder_name + directory::get_separator();
if (set_dir(prefix + path) == false)
{
sob.remove(sob.size()-1,new_btn);
path = old_path;
cur_dir = old_cur_dir;
}
else
{
sob[cur_dir]->set_checked();
}
}
// ------------------------------------------------------------------------------------
void box_win::
on_dirs_click (
unsigned long idx
)
{
enter_folder(lb_dirs[idx]);
}
// ------------------------------------------------------------------------------------
void box_win::
on_files_click (
unsigned long idx
)
{
if (tf_file_name.is_hidden() == false)
{
tf_file_name.set_text(lb_files[idx]);
}
}
// ------------------------------------------------------------------------------------
void box_win::
on_files_double_click (
unsigned long
)
{
on_open_click();
}
// ------------------------------------------------------------------------------------
void box_win::
on_cancel_click (
)
{
hide();
create_new_thread<box_win,&box_win::deleter_thread>(*this);
}
// ------------------------------------------------------------------------------------
void box_win::
on_open_click (
)
{
if (lb_files.get_selected() != lb_files.size() || tf_file_name.text().size() > 0)
{
if (event_handler.is_set())
{
if (tf_file_name.is_hidden())
event_handler(prefix + path + lb_files[lb_files.get_selected()]);
else if (tf_file_name.text().size() > 0)
event_handler(prefix + path + tf_file_name.text());
}
hide();
create_new_thread<box_win,&box_win::deleter_thread>(*this);
}
}
// ------------------------------------------------------------------------------------
void box_win::
on_path_button_click (
toggle_button& btn
)
{
if (btn_root.is_checked())
btn_root.set_unchecked();
if (cur_dir != -1)
sob[cur_dir]->set_unchecked();
std::string new_path;
for (unsigned long i = 0; i < sob.size(); ++i)
{
new_path += sob[i]->name() + directory::get_separator();
if (sob[i].get() == &btn)
{
cur_dir = i;
sob[i]->set_checked();
break;
}
}
if (path != new_path)
{
path = new_path;
set_dir(prefix+path);
}
}
// ------------------------------------------------------------------------------------
struct case_insensitive_compare
{
bool operator() (
const std::string& a,
const std::string& b
) const
{
std::string::size_type i, size;
size = std::min(a.size(),b.size());
for (i = 0; i < size; ++i)
{
if (std::tolower(a[i]) < std::tolower(b[i]))
return true;
else if (std::tolower(a[i]) > std::tolower(b[i]))
return false;
}
if (a.size() < b.size())
return true;
else
return false;
}
};
// ------------------------------------------------------------------------------------
bool box_win::
set_dir (
const std::string& dir
)
{
try
{
directory d(dir);
queue<directory>::kernel_1a_c qod;
queue<file>::kernel_1a_c qof;
queue<std::string>::sort_1a_c qos;
d.get_dirs(qod);
d.get_files(qof);
qod.reset();
while (qod.move_next())
{
std::string temp = qod.element().name();
qos.enqueue(temp);
}
qos.sort(case_insensitive_compare());
lb_dirs.load(qos);
qos.clear();
qof.reset();
while (qof.move_next())
{
std::string temp = qof.element().name();
qos.enqueue(temp);
}
qos.sort(case_insensitive_compare());
lb_files.load(qos);
return true;
}
catch (directory::listing_error& )
{
return false;
}
catch (directory::dir_not_found&)
{
return false;
}
}
// ------------------------------------------------------------------------------------
void box_win::
on_root_click (
)
{
btn_root.set_checked();
if (cur_dir != -1)
sob[cur_dir]->set_unchecked();
queue<directory>::kernel_1a_c qod, qod2;
queue<file>::kernel_1a_c qof;
queue<std::string>::sort_1a_c qos;
get_filesystem_roots(qod);
path.clear();
cur_dir = -1;
if (qod.size() == 1)
{
qod.current().get_files(qof);
qod.current().get_dirs(qod2);
prefix = qod.current().full_name();
qod2.reset();
while (qod2.move_next())
{
std::string temp = qod2.element().name();
qos.enqueue(temp);
}
qos.sort(case_insensitive_compare());
lb_dirs.load(qos);
qos.clear();
qof.reset();
while (qof.move_next())
{
std::string temp = qof.element().name();
qos.enqueue(temp);
}
qos.sort(case_insensitive_compare());
lb_files.load(qos);
}
else
{
prefix.clear();
qod.reset();
while (qod.move_next())
{
std::string temp = qod.element().full_name();
temp = temp.substr(0,temp.size()-1);
qos.enqueue(temp);
}
qos.sort(case_insensitive_compare());
lb_dirs.load(qos);
qos.clear();
lb_files.load(qos);
}
}
// ------------------------------------------------------------------------------------
base_window::on_close_return_code box_win::
on_window_close (
)
{
delete this;
return CLOSE_WINDOW;
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// class menu_bar
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
menu_bar::
menu_bar(
drawable_window& w
) :
drawable(w, 0xFFFF), // listen for all events
open_menu(0)
{
adjust_position();
enable_events();
}
// ----------------------------------------------------------------------------------------
menu_bar::
~menu_bar()
{
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void menu_bar::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
adjust_position();
compute_menu_geometry();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void menu_bar::
set_number_of_menus (
unsigned long num
)
{
auto_mutex M(m);
menus.set_max_size(num);
menus.set_size(num);
open_menu = menus.size();
compute_menu_geometry();
for (unsigned long i = 0; i < menus.size(); ++i)
{
menus[i].menu.set_on_hide_handler(*this,&menu_bar::on_popup_hide);
}
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
unsigned long menu_bar::
number_of_menus (
) const
{
auto_mutex M(m);
return menus.size();
}
// ----------------------------------------------------------------------------------------
void menu_bar::
set_menu_name (
unsigned long idx,
const std::string name,
char underline_ch
)
{
set_menu_name(idx, convert_mbstring_to_wstring(name), underline_ch);
}
// ----------------------------------------------------------------------------------------
void menu_bar::
set_menu_name (
unsigned long idx,
const std::wstring name,
char underline_ch
)
{
set_menu_name(idx, convert_wstring_to_utf32(name), underline_ch);
}
// ----------------------------------------------------------------------------------------
void menu_bar::
set_menu_name (
unsigned long idx,
const dlib::ustring name,
char underline_ch
)
{
DLIB_ASSERT ( idx < number_of_menus() ,
"\tvoid menu_bar::set_menu_name()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_menus(): " << number_of_menus()
);
auto_mutex M(m);
menus[idx].name = name.c_str();
menus[idx].underline_pos = name.find_first_of(underline_ch);
compute_menu_geometry();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const std::string menu_bar::
menu_name (
unsigned long idx
) const
{
return convert_wstring_to_mbstring(menu_wname(idx));
}
// ----------------------------------------------------------------------------------------
const std::wstring menu_bar::
menu_wname (
unsigned long idx
) const
{
return convert_utf32_to_wstring(menu_uname(idx));
}
// ----------------------------------------------------------------------------------------
const dlib::ustring menu_bar::
menu_uname (
unsigned long idx
) const
{
DLIB_ASSERT ( idx < number_of_menus() ,
"\tstd::string menu_bar::menu_name()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_menus(): " << number_of_menus()
);
auto_mutex M(m);
return menus[idx].name.c_str();
}
// ----------------------------------------------------------------------------------------
popup_menu& menu_bar::
menu (
unsigned long idx
)
{
DLIB_ASSERT ( idx < number_of_menus() ,
"\tpopup_menu& menu_bar::menu()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_menus(): " << number_of_menus()
);
auto_mutex M(m);
return menus[idx].menu;
}
// ----------------------------------------------------------------------------------------
const popup_menu& menu_bar::
menu (
unsigned long idx
) const
{
DLIB_ASSERT ( idx < number_of_menus() ,
"\tconst popup_menu& menu_bar::menu()"
<< "\n\tidx: " << idx
<< "\n\tnumber_of_menus(): " << number_of_menus()
);
auto_mutex M(m);
return menus[idx].menu;
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_window_resized (
)
{
adjust_position();
hide_menu();
}
// ----------------------------------------------------------------------------------------
void menu_bar::
draw (
const canvas& c
) const
{
rectangle area(rect.intersect(c));
if (area.is_empty())
return;
const unsigned char opacity = 40;
fill_rect_with_vertical_gradient(c, rect,rgb_alpha_pixel(255,255,255,opacity),
rgb_alpha_pixel(0,0,0,opacity));
// first draw the border between the menu and the rest of the window
draw_line(c, point(rect.left(),rect.bottom()-1),
point(rect.right(),rect.bottom()-1), 100);
draw_line(c, point(rect.left(),rect.bottom()),
point(rect.right(),rect.bottom()), 255);
// now draw all the menu buttons
for (unsigned long i = 0; i < menus.size(); ++i)
{
mfont->draw_string(c,menus[i].rect, menus[i].name );
if (menus[i].underline_p1 != menus[i].underline_p2)
draw_line(c, menus[i].underline_p1, menus[i].underline_p2);
if (open_menu == i)
{
fill_rect_with_vertical_gradient(c, menus[i].bgrect,rgb_alpha_pixel(255,255,0,40), rgb_alpha_pixel(0,0,0,40));
}
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_window_moved (
)
{
hide_menu();
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_focus_lost (
)
{
hide_menu();
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_mouse_down (
unsigned long btn,
unsigned long ,
long x,
long y,
bool
)
{
if (rect.contains(x,y) == false || btn != (unsigned long)base_window::LEFT)
{
hide_menu();
return;
}
unsigned long old_menu = menus.size();
// if a menu is currently open then save its index
if (open_menu != menus.size())
{
old_menu = open_menu;
hide_menu();
}
// figure out which menu should be open if any
for (unsigned long i = 0; i < menus.size(); ++i)
{
if (menus[i].bgrect.contains(x,y))
{
if (old_menu != i)
show_menu(i);
break;
}
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_mouse_move (
unsigned long ,
long x,
long y
)
{
// if the mouse is over the menu_bar and some menu is currently open
if (rect.contains(x,y) && open_menu != menus.size())
{
// if the mouse is still in the same rectangle then don't do anything
if (menus[open_menu].bgrect.contains(x,y) == false)
{
// figure out which menu should be instead
for (unsigned long i = 0; i < menus.size(); ++i)
{
if (menus[i].bgrect.contains(x,y))
{
show_menu(i);
break;
}
}
}
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
if (state&base_window::KBD_MOD_ALT)
{
// check if the key matches any of our underlined keys
for (unsigned long i = 0; i < menus.size(); ++i)
{
// if we have found a matching key
if (is_printable &&
menus[i].underline_pos != std::string::npos &&
std::tolower(menus[i].name[menus[i].underline_pos]) == std::tolower(key))
{
show_menu(i);
menus[open_menu].menu.select_first_item();
return;
}
}
}
if (open_menu != menus.size())
{
unsigned long i = open_menu;
// if the submenu doesn't use this key for something then we will
if (menus[open_menu].menu.forwarded_on_keydown(key,is_printable,state) == false)
{
if (key == base_window::KEY_LEFT)
{
i = (i+menus.size()-1)%menus.size();
show_menu(i);
menus[open_menu].menu.select_first_item();
}
else if (key == base_window::KEY_RIGHT)
{
i = (i+1)%menus.size();
show_menu(i);
menus[open_menu].menu.select_first_item();
}
else if (key == base_window::KEY_ESC)
{
hide_menu();
}
}
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
show_menu (
unsigned long i
)
{
rectangle temp;
// menu already open so do nothing
if (i == open_menu)
return;
// if a menu is currently open
if (open_menu != menus.size())
{
menus[open_menu].menu.hide();
temp = menus[open_menu].bgrect;
}
// display the new menu
open_menu = i;
long wx, wy;
parent.get_pos(wx,wy);
wx += menus[i].bgrect.left();
wy += menus[i].bgrect.bottom()+1;
menus[i].menu.set_pos(wx,wy);
menus[i].menu.show();
parent.invalidate_rectangle(menus[i].bgrect+temp);
}
// ----------------------------------------------------------------------------------------
void menu_bar::
hide_menu (
)
{
// if a menu is currently open
if (open_menu != menus.size())
{
menus[open_menu].menu.hide();
parent.invalidate_rectangle(menus[open_menu].bgrect);
open_menu = menus.size();
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
on_popup_hide (
)
{
// if a menu is currently open
if (open_menu != menus.size())
{
parent.invalidate_rectangle(menus[open_menu].bgrect);
open_menu = menus.size();
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
compute_menu_geometry (
)
{
long x = 7;
long bg_x = 0;
for (unsigned long i = 0; i < menus.size(); ++i)
{
// compute the locations of the text rectangles
menus[i].rect.set_top(5);
menus[i].rect.set_left(x);
menus[i].rect.set_bottom(rect.bottom()-2);
unsigned long width, height;
mfont->compute_size(menus[i].name,width,height);
menus[i].rect = resize_rect_width(menus[i].rect, width);
x = menus[i].rect.right()+10;
menus[i].bgrect.set_top(0);
menus[i].bgrect.set_left(bg_x);
menus[i].bgrect.set_bottom(rect.bottom()-2);
menus[i].bgrect.set_right(x-5);
bg_x = menus[i].bgrect.right()+1;
if (menus[i].underline_pos != std::string::npos)
{
// now compute the location of the underline bar
rectangle r1 = mfont->compute_cursor_rect(
menus[i].rect,
menus[i].name,
menus[i].underline_pos);
rectangle r2 = mfont->compute_cursor_rect(
menus[i].rect,
menus[i].name,
menus[i].underline_pos+1);
menus[i].underline_p1.x() = r1.left()+1;
menus[i].underline_p2.x() = r2.left()-1;
menus[i].underline_p1.y() = r1.bottom()-mfont->height()+mfont->ascender()+2;
menus[i].underline_p2.y() = r2.bottom()-mfont->height()+mfont->ascender()+2;
}
else
{
// there is no underline in this case
menus[i].underline_p1 = menus[i].underline_p2;
}
}
}
// ----------------------------------------------------------------------------------------
void menu_bar::
adjust_position (
)
{
unsigned long width, height;
rectangle old(rect);
parent.get_size(width,height);
rect.set_left(0);
rect.set_top(0);
rect = resize_rect(rect,width,mfont->height()+10);
parent.invalidate_rectangle(old+rect);
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// class text_grid
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
text_grid::
text_grid (
drawable_window& w
) :
scrollable_region(w, KEYBOARD_EVENTS | MOUSE_CLICK | FOCUS_EVENTS ),
has_focus(false),
cursor_timer(*this,&text_grid::timer_action),
border_color_(128,128,128)
{
cursor_timer.set_delay_time(500);
set_vertical_scroll_increment(10);
set_horizontal_scroll_increment(10);
enable_events();
}
// ----------------------------------------------------------------------------------------
text_grid::
~text_grid (
)
{
// Disable all further events for this drawable object. We have to do this
// because we don't want draw() events coming to this object while or after
// it has been destructed.
disable_events();
// wait for the timer to stop doing its thing
cursor_timer.stop_and_wait();
// Tell the parent window to redraw its area that previously contained this
// drawable object.
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_grid_size (
unsigned long rows,
unsigned long cols
)
{
auto_mutex M(m);
row_height.set_max_size(rows);
row_height.set_size(rows);
col_width.set_max_size(cols);
col_width.set_size(cols);
grid.set_size(rows,cols);
for (unsigned long i = 0; i < row_height.size(); ++i)
row_height[i] = (mfont->height()*3)/2;
for (unsigned long i = 0; i < col_width.size(); ++i)
col_width[i] = mfont->height()*5;
compute_total_rect();
compute_bg_rects();
}
// ----------------------------------------------------------------------------------------
unsigned long text_grid::
number_of_columns (
) const
{
auto_mutex M(m);
return grid.nc();
}
// ----------------------------------------------------------------------------------------
unsigned long text_grid::
number_of_rows (
) const
{
auto_mutex M(m);
return grid.nr();
}
// ----------------------------------------------------------------------------------------
int text_grid::
next_free_user_event_number (
) const
{
return scrollable_region::next_free_user_event_number()+1;
}
// ----------------------------------------------------------------------------------------
rgb_pixel text_grid::
border_color (
) const
{
auto_mutex M(m);
return border_color_;
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_border_color (
rgb_pixel color
)
{
auto_mutex M(m);
border_color_ = color;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const std::string text_grid::
text (
unsigned long row,
unsigned long col
) const
{
return convert_wstring_to_mbstring(wtext(row, col));
}
// ----------------------------------------------------------------------------------------
const std::wstring text_grid::
wtext (
unsigned long row,
unsigned long col
) const
{
return convert_utf32_to_wstring(utext(row, col));
}
// ----------------------------------------------------------------------------------------
const dlib::ustring text_grid::
utext (
unsigned long row,
unsigned long col
) const
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tconst std::string text_grid::text(row,col)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
return grid[row][col].text.c_str();
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_text (
unsigned long row,
unsigned long col,
const std::string& str
)
{
set_text(row, col, convert_mbstring_to_wstring(str));
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_text (
unsigned long row,
unsigned long col,
const std::wstring& str
)
{
set_text(row, col, convert_wstring_to_utf32(str));
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_text (
unsigned long row,
unsigned long col,
const dlib::ustring& str
)
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tvoid text_grid::set_text(row,col)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
grid[row][col].text = str.c_str();
parent.invalidate_rectangle(get_text_rect(row,col));
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_grid::
text_color (
unsigned long row,
unsigned long col
) const
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tconst rgb_pixel text_grid::text_color(row,col)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
return grid[row][col].text_color;
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_text_color (
unsigned long row,
unsigned long col,
const rgb_pixel color
)
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tvoid text_grid::set_text_color(row,col,color)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
grid[row][col].text_color = color;
parent.invalidate_rectangle(get_text_rect(row,col));
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_grid::
background_color (
unsigned long row,
unsigned long col
) const
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tconst rgb_pixel text_grid::background_color(row,col,color)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
return grid[row][col].bg_color;
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_background_color (
unsigned long row,
unsigned long col,
const rgb_pixel color
)
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tvoid text_grid::set_background_color(row,col,color)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
grid[row][col].bg_color = color;
parent.invalidate_rectangle(get_bg_rect(row,col));
}
// ----------------------------------------------------------------------------------------
bool text_grid::
is_editable (
unsigned long row,
unsigned long col
) const
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tbool text_grid::is_editable(row,col)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\tthis: " << this
);
return grid[row][col].is_editable;
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_editable (
unsigned long row,
unsigned long col,
bool editable
)
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() && col < number_of_columns(),
"\tvoid text_grid::set_editable(row,col,editable)"
<< "\n\trow: " << row
<< "\n\tcol: " << col
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\teditable: " << editable
<< "\n\tthis: " << this
);
grid[row][col].is_editable = editable;
if (has_focus && active_row == static_cast<long>(row) && active_col == static_cast<long>(col))
{
drop_input_focus();
}
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_column_width (
unsigned long col,
unsigned long width
)
{
auto_mutex M(m);
DLIB_ASSERT ( col < number_of_columns(),
"\tvoid text_grid::set_column_width(col,width)"
<< "\n\tcol: " << col
<< "\n\tnumber_of_columns(): " << number_of_columns()
<< "\n\twidth: " << width
<< "\n\tthis: " << this
);
col_width[col] = width;
compute_total_rect();
compute_bg_rects();
}
// ----------------------------------------------------------------------------------------
void text_grid::
set_row_height (
unsigned long row,
unsigned long height
)
{
auto_mutex M(m);
DLIB_ASSERT ( row < number_of_rows() ,
"\tvoid text_grid::set_row_height(row,height)"
<< "\n\trow: " << row
<< "\n\tnumber_of_rows(): " << number_of_rows()
<< "\n\theight: " << height
<< "\n\tthis: " << this
);
row_height[row] = height;
compute_total_rect();
compute_bg_rects();
}
// ----------------------------------------------------------------------------------------
void text_grid::
disable (
)
{
auto_mutex M(m);
scrollable_region::disable();
drop_input_focus();
}
// ----------------------------------------------------------------------------------------
void text_grid::
hide (
)
{
auto_mutex M(m);
scrollable_region::hide();
drop_input_focus();
}
// ----------------------------------------------------------------------------------------
void text_grid::
on_user_event (
int num
)
{
// ignore this user event if it isn't for us
if (num != scrollable_region::next_free_user_event_number())
return;
if (has_focus && !recent_cursor_move && enabled && !hidden)
{
show_cursor = !show_cursor;
parent.invalidate_rectangle(get_text_rect(active_row,active_col));
}
recent_cursor_move = false;
}
// ----------------------------------------------------------------------------------------
void text_grid::
timer_action (
)
{
parent.trigger_user_event(this,scrollable_region::next_free_user_event_number());
}
// ----------------------------------------------------------------------------------------
void text_grid::
compute_bg_rects (
)
{
// loop over each element in the grid and figure out what its rectangle should be
// with respect to the total_rect()
point p1, p2;
p1.y() = total_rect().top();
for (long row = 0; row < grid.nr(); ++row)
{
p1.x() = total_rect().left();
p2.y() = p1.y() + row_height[row]-1;
for (long col = 0; col < grid.nc(); ++col)
{
// if this is the last box in this row make it super wide so that it always
// goes to the end of the widget
if (col+1 == grid.nc())
p2.x() = 1000000;
else
p2.x() = p1.x() + col_width[col]-1;
// at this point p1 is the upper left corner of this box and p2 is the
// lower right corner of the box;
rectangle bg_rect(p1);
bg_rect += p2;
grid[row][col].bg_rect = translate_rect(bg_rect, -total_rect().left(), -total_rect().top());
p1.x() += 1 + col_width[col];
}
p1.y() += 1 + row_height[row];
}
}
// ----------------------------------------------------------------------------------------
void text_grid::
compute_total_rect (
)
{
if (grid.size() == 0)
{
set_total_rect_size(0,0);
}
else
{
unsigned long width = col_width.size()-1;
unsigned long height = row_height.size()-1;
for (unsigned long i = 0; i < col_width.size(); ++i)
width += col_width[i];
for (unsigned long i = 0; i < row_height.size(); ++i)
height += row_height[i];
set_total_rect_size(width,height);
}
}
// ----------------------------------------------------------------------------------------
void text_grid::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
// ignore this event if we are disabled or hidden
if (!enabled || hidden)
return;
if (has_focus)
{
if (is_printable)
{
// if the user hit the tab key then jump to the next box
if (key == '\t')
{
if (active_col+1 == grid.nc())
{
if (active_row+1 == grid.nr())
move_cursor(0,0,0);
else
move_cursor(active_row+1,0,0);
}
else
{
move_cursor(active_row,active_col+1,0);
}
}
if (key == '\n')
{
// ignore the enter key
}
else if (grid[active_row][active_col].is_editable)
{
// insert the key the user pressed into the string
grid[active_row][active_col].text.insert(cursor_pos,1,static_cast<char>(key));
move_cursor(active_row,active_col,cursor_pos+1);
if (text_modified_handler.is_set())
text_modified_handler(active_row,active_col);
}
}
else if ((state & base_window::KBD_MOD_CONTROL))
{
if (key == base_window::KEY_LEFT)
move_cursor(active_row,active_col-1,0);
else if (key == base_window::KEY_RIGHT)
move_cursor(active_row,active_col+1,0);
else if (key == base_window::KEY_UP)
move_cursor(active_row-1,active_col,0);
else if (key == base_window::KEY_DOWN)
move_cursor(active_row+1,active_col,0);
else if (key == base_window::KEY_END)
move_cursor(active_row,active_col,grid[active_row][active_col].text.size());
else if (key == base_window::KEY_HOME)
move_cursor(active_row,active_col,0);
}
else
{
if (key == base_window::KEY_LEFT)
move_cursor(active_row,active_col,cursor_pos-1);
else if (key == base_window::KEY_RIGHT)
move_cursor(active_row,active_col,cursor_pos+1);
else if (key == base_window::KEY_UP)
move_cursor(active_row-1,active_col,0);
else if (key == base_window::KEY_DOWN)
move_cursor(active_row+1,active_col,0);
else if (key == base_window::KEY_END)
move_cursor(active_row,active_col,grid[active_row][active_col].text.size());
else if (key == base_window::KEY_HOME)
move_cursor(active_row,active_col,0);
else if (key == base_window::KEY_BACKSPACE)
{
if (cursor_pos > 0 && grid[active_row][active_col].is_editable)
{
grid[active_row][active_col].text.erase(
grid[active_row][active_col].text.begin()+cursor_pos-1,
grid[active_row][active_col].text.begin()+cursor_pos);
move_cursor(active_row,active_col,cursor_pos-1);
if (text_modified_handler.is_set())
text_modified_handler(active_row,active_col);
}
}
else if (key == base_window::KEY_DELETE)
{
if (cursor_pos < static_cast<long>(grid[active_row][active_col].text.size()) &&
grid[active_row][active_col].is_editable)
{
grid[active_row][active_col].text.erase(
grid[active_row][active_col].text.begin()+cursor_pos);
move_cursor(active_row,active_col,cursor_pos);
if (text_modified_handler.is_set())
text_modified_handler(active_row,active_col);
}
}
}
} // if (has_focus)
}
// ----------------------------------------------------------------------------------------
void text_grid::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool is_double_click
)
{
scrollable_region::on_mouse_down(btn, state, x, y, is_double_click);
if (display_rect().contains(x,y) && enabled && !hidden)
{
// figure out which box this click landed in
rectangle hit;
// find which column we hit
unsigned long col = 0;
long box_x = total_rect().left();
for (unsigned long i = 0; i < col_width.size(); ++i)
{
if (box_x <= x && (x < box_x+static_cast<long>(col_width[i]) || (i+1 == col_width.size())))
{
col = i;
hit.set_left(box_x);
hit.set_right(box_x+col_width[i]-1);
break;
}
else
{
box_x += col_width[i]+1;
}
}
// find which row we hit
unsigned long row = 0;
long box_y = total_rect().top();
for (unsigned long i = 0; i < row_height.size(); ++i)
{
if (box_y <= y && y < box_y+static_cast<long>(row_height[i]))
{
row = i;
hit.set_top(box_y);
hit.set_bottom(box_y+row_height[i]-1);
break;
}
else
{
box_y += row_height[i]+1;
}
}
// if we hit a box
if (hit.is_empty() == false)
{
move_cursor(row,
col,
mfont->compute_cursor_pos(get_text_rect(row,col), grid[row][col].text, x, y, grid[row][col].first)
);
}
else
{
drop_input_focus();
}
}
else
{
drop_input_focus();
}
}
// ----------------------------------------------------------------------------------------
void text_grid::
on_mouse_up (
unsigned long btn,
unsigned long state,
long x,
long y
)
{
scrollable_region::on_mouse_up(btn, state, x, y);
}
// ----------------------------------------------------------------------------------------
void text_grid::
on_focus_lost (
)
{
drop_input_focus();
}
// ----------------------------------------------------------------------------------------
void text_grid::
draw (
const canvas& c
) const
{
scrollable_region::draw(c);
rectangle area = c.intersect(display_rect());
if (area.is_empty() == true)
return;
if (enabled)
fill_rect(c, area, 255);
// don't do anything if the grid is empty
if (grid.size() == 0)
return;
// draw all the vertical lines
point p1, p2;
p1.x() = p2.x() = total_rect().left();
p1.y() = total_rect().top();
p2.y() = total_rect().bottom();
for (unsigned long i = 0; i < col_width.size()-1; ++i)
{
p1.x() += col_width[i];
p2.x() += col_width[i];
if (enabled)
draw_line(c,p1,p2,border_color_,area);
else
draw_line(c,p1,p2,128,area);
p1.x() += 1;
p2.x() += 1;
}
// draw all the horizontal lines
p1.y() = p2.y() = total_rect().top();
p1.x() = display_rect().left();
p2.x() = display_rect().right();
for (unsigned long i = 0; i < row_height.size(); ++i)
{
p1.y() += row_height[i];
p2.y() += row_height[i];
if (enabled)
draw_line(c,p1,p2,border_color_,area);
else
draw_line(c,p1,p2,128,area);
p1.y() += 1;
p2.y() += 1;
}
// draw the backgrounds and text for each box
for (long row = 0; row < grid.nr(); ++row)
{
for (long col = 0; col < grid.nc(); ++col)
{
rectangle bg_rect(get_bg_rect(row,col));
rectangle text_rect(get_text_rect(row,col));
if (enabled)
{
fill_rect(c,bg_rect.intersect(area),grid[row][col].bg_color);
mfont->draw_string(c,
text_rect,
grid[row][col].text,
grid[row][col].text_color,
grid[row][col].first,
std::string::npos,
area);
}
else
{
mfont->draw_string(c,
text_rect,
grid[row][col].text,
128,
grid[row][col].first,
std::string::npos,
area);
}
// if this box has input focus then draw it with a cursor
if (has_focus && active_col == col && active_row == row && show_cursor)
{
rectangle cursor_rect = mfont->compute_cursor_rect(text_rect,
grid[row][col].text,
cursor_pos,
grid[row][col].first);
draw_rectangle(c,cursor_rect,0,area);
}
}
}
}
// ----------------------------------------------------------------------------------------
rectangle text_grid::
get_text_rect (
unsigned long row,
unsigned long col
) const
{
rectangle bg_rect(get_bg_rect(row,col));
long padding = (bg_rect.height() - mfont->height())/2 + (bg_rect.height() - mfont->height())%2;
if (padding < 0)
padding = 0;
bg_rect.set_left(bg_rect.left()+padding);
bg_rect.set_top(bg_rect.top()+padding);
bg_rect.set_right(bg_rect.right()-padding);
bg_rect.set_bottom(bg_rect.bottom()-padding);
return bg_rect;
}
// ----------------------------------------------------------------------------------------
rectangle text_grid::
get_bg_rect (
unsigned long row,
unsigned long col
) const
{
return translate_rect(grid[row][col].bg_rect, total_rect().left(), total_rect().top());
}
// ----------------------------------------------------------------------------------------
void text_grid::
drop_input_focus (
)
{
if (has_focus)
{
parent.invalidate_rectangle(get_text_rect(active_row,active_col));
has_focus = false;
show_cursor = false;
cursor_timer.stop();
}
}
// ----------------------------------------------------------------------------------------
void text_grid::
move_cursor (
long row,
long col,
long new_cursor_pos
)
{
// don't do anything if the grid is empty
if (grid.size() == 0)
{
return;
}
if (row < 0)
row = 0;
if (row >= grid.nr())
row = grid.nr()-1;
if (col < 0)
col = 0;
if (col >= grid.nc())
col = grid.nc()-1;
if (new_cursor_pos < 0)
{
if (col == 0)
{
new_cursor_pos = 0;
}
else
{
--col;
new_cursor_pos = grid[row][col].text.size();
}
}
if (new_cursor_pos > static_cast<long>(grid[row][col].text.size()))
{
if (col+1 == grid.nc())
{
new_cursor_pos = grid[row][col].text.size();
}
else
{
++col;
new_cursor_pos = 0;
}
}
// if some other box had the input focus then redraw it
if (has_focus && (active_row != row || active_col != col ))
{
parent.invalidate_rectangle(get_text_rect(active_row,active_col));
}
if (has_focus == false)
{
cursor_timer.start();
}
has_focus = true;
recent_cursor_move = true;
show_cursor = true;
active_row = row;
active_col = col;
cursor_pos = new_cursor_pos;
// adjust the first character to draw so that the string is displayed well
rectangle text_rect(get_text_rect(active_row,active_col));
rectangle cursor_rect = mfont->compute_cursor_rect(text_rect,
grid[row][col].text,
cursor_pos,
grid[row][col].first);
// if the cursor rect is too far to the left of the string
if (cursor_pos < static_cast<long>(grid[row][col].first))
{
if (cursor_pos > 5)
{
grid[row][col].first = cursor_pos - 5;
}
else
{
grid[row][col].first = 0;
}
}
// if the cursor rect is too far to the right of the string
else if (cursor_rect.left() > text_rect.right())
{
long distance = (cursor_rect.left() - text_rect.right()) + text_rect.width()/3;
// find the letter that is distance pixels from the start of the string
long sum = 0;
for (unsigned long i = grid[row][col].first; i < grid[row][col].text.size(); ++i)
{
sum += (*mfont)[grid[row][col].text[i]].width();
if (sum >= distance)
{
grid[row][col].first = i;
break;
}
}
}
scroll_to_rect(get_bg_rect(row,col));
// redraw our box
parent.invalidate_rectangle(text_rect);
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// text_field object methods
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
rectangle text_box::
get_text_rect (
) const
{
const unsigned long padding = style->get_padding(*mfont);
rectangle text_rect;
text_rect.set_left(total_rect().left()+padding);
text_rect.set_top(total_rect().top()+padding);
text_rect.set_right(total_rect().right()-padding);
text_rect.set_bottom(total_rect().bottom()-padding);
return text_rect;
}
// ----------------------------------------------------------------------------------------
void text_box::
enable (
)
{
scrollable_region::enable();
right_click_menu.enable();
}
// ----------------------------------------------------------------------------------------
void text_box::
on_cut (
)
{
on_copy();
on_delete_selected();
}
// ----------------------------------------------------------------------------------------
void text_box::
on_copy (
)
{
if (highlight_start <= highlight_end)
{
put_on_clipboard(text_.substr(highlight_start, highlight_end-highlight_start+1));
}
}
// ----------------------------------------------------------------------------------------
void text_box::
on_paste (
)
{
ustring temp_str;
get_from_clipboard(temp_str);
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + temp_str +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
move_cursor(highlight_start+temp_str.size());
highlight_start = 0;
highlight_end = -1;
parent.invalidate_rectangle(rect);
on_no_text_selected();
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
text_ = text_.substr(0,cursor_pos) + temp_str +
text_.substr(cursor_pos,text_.size()-cursor_pos);
move_cursor(cursor_pos+temp_str.size());
// send out the text modified event
if (temp_str.size() != 0 && text_modified_handler.is_set())
text_modified_handler();
}
adjust_total_rect();
}
// ----------------------------------------------------------------------------------------
void text_box::
on_select_all (
)
{
move_cursor(static_cast<long>(text_.size()));
highlight_start = 0;
highlight_end = static_cast<long>(text_.size()-1);
if (highlight_start <= highlight_end)
on_text_is_selected();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void text_box::
on_delete_selected (
)
{
if (highlight_start <= highlight_end)
{
text_ = text_.erase(highlight_start,highlight_end-highlight_start+1);
move_cursor(highlight_start);
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
adjust_total_rect();
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
void text_box::
on_text_is_selected (
)
{
right_click_menu.menu().enable_menu_item(0);
right_click_menu.menu().enable_menu_item(1);
right_click_menu.menu().enable_menu_item(3);
}
// ----------------------------------------------------------------------------------------
void text_box::
on_no_text_selected (
)
{
right_click_menu.menu().disable_menu_item(0);
right_click_menu.menu().disable_menu_item(1);
right_click_menu.menu().disable_menu_item(3);
}
// ----------------------------------------------------------------------------------------
void text_box::
show (
)
{
scrollable_region::show();
right_click_menu.show();
}
// ----------------------------------------------------------------------------------------
void text_box::
disable (
)
{
auto_mutex M(m);
scrollable_region::disable();
t.stop();
has_focus = false;
cursor_visible = false;
right_click_menu.disable();
}
// ----------------------------------------------------------------------------------------
void text_box::
hide (
)
{
auto_mutex M(m);
scrollable_region::hide();
t.stop();
has_focus = false;
cursor_visible = false;
}
// ----------------------------------------------------------------------------------------
void text_box::
adjust_total_rect (
)
{
const unsigned long padding = style->get_padding(*mfont);
unsigned long text_width;
unsigned long text_height;
mfont->compute_size(text_, text_width, text_height);
set_total_rect_size(text_width + padding*2, text_height + padding*2);
}
// ----------------------------------------------------------------------------------------
void text_box::
set_main_font (
const shared_ptr_thread_safe<font>& f
)
{
auto_mutex M(m);
mfont = f;
adjust_total_rect();
right_click_menu.set_rect(display_rect());
}
// ----------------------------------------------------------------------------------------
void text_box::
draw (
const canvas& c
) const
{
scrollable_region::draw(c);
rectangle area = rect.intersect(c);
if (area.is_empty())
return;
const point origin(total_rect().left(), total_rect().top());
style->draw_text_box(c,display_rect(),get_text_rect(), enabled, *mfont, text_,
translate_rect(cursor_rect, origin),
text_color_, bg_color_, has_focus, cursor_visible, highlight_start,
highlight_end);
}
// ----------------------------------------------------------------------------------------
void text_box::
set_text (
const std::string& text
)
{
set_text(convert_mbstring_to_wstring(text));
}
void text_box::
set_text (
const std::wstring& text
)
{
set_text(convert_wstring_to_utf32(text));
}
void text_box::
set_text (
const dlib::ustring& text
)
{
auto_mutex M(m);
// do this to get rid of any reference counting that may be present in
// the std::string implementation.
text_ = text.c_str();
adjust_total_rect();
move_cursor(0);
highlight_start = 0;
highlight_end = -1;
}
// ----------------------------------------------------------------------------------------
const std::string text_box::
text (
) const
{
std::string temp = convert_wstring_to_mbstring(wtext());
return temp;
}
const std::wstring text_box::
wtext (
) const
{
std::wstring temp = convert_utf32_to_wstring(utext());
return temp;
}
const dlib::ustring text_box::
utext (
) const
{
auto_mutex M(m);
// do this to get rid of any reference counting that may be present in
// the dlib::ustring implementation.
dlib::ustring temp = text_.c_str();
return temp;
}
// ----------------------------------------------------------------------------------------
void text_box::
set_size (
unsigned long width,
unsigned long height
)
{
auto_mutex M(m);
scrollable_region::set_size(width,height);
right_click_menu.set_rect(display_rect());
}
// ----------------------------------------------------------------------------------------
void text_box::
set_pos (
long x,
long y
)
{
scrollable_region::set_pos(x,y);
right_click_menu.set_rect(get_text_rect());
}
// ----------------------------------------------------------------------------------------
void text_box::
set_background_color (
const rgb_pixel color
)
{
auto_mutex M(m);
bg_color_ = color;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_box::
background_color (
) const
{
auto_mutex M(m);
return bg_color_;
}
// ----------------------------------------------------------------------------------------
void text_box::
set_text_color (
const rgb_pixel color
)
{
auto_mutex M(m);
text_color_ = color;
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
const rgb_pixel text_box::
text_color (
) const
{
auto_mutex M(m);
return text_color_;
}
// ----------------------------------------------------------------------------------------
void text_box::
on_mouse_move (
unsigned long state,
long x,
long y
)
{
if (!enabled || hidden || !has_focus)
{
return;
}
if (state & base_window::LEFT)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
unsigned long new_pos = mfont->compute_cursor_pos(get_text_rect(),text_,x,y);
if (static_cast<long>(new_pos) != cursor_pos)
{
move_cursor(new_pos);
parent.invalidate_rectangle(rect);
}
}
else if (shift_pos != -1)
{
shift_pos = -1;
}
}
// ----------------------------------------------------------------------------------------
void text_box::
on_mouse_up (
unsigned long btn,
unsigned long,
long ,
long
)
{
if (!enabled || hidden)
return;
if (btn == base_window::LEFT)
shift_pos = -1;
}
// ----------------------------------------------------------------------------------------
void text_box::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool double_clicked
)
{
using namespace std;
if (!enabled || hidden || btn != (unsigned long)base_window::LEFT)
return;
if (display_rect().contains(x,y))
{
has_focus = true;
cursor_visible = true;
parent.invalidate_rectangle(rect);
t.start();
if (double_clicked)
{
// highlight the double clicked word
string::size_type first, last;
const ustring ustr = convert_utf8_to_utf32(std::string(" \t\n"));
first = text_.substr(0,cursor_pos).find_last_of(ustr.c_str());
last = text_.find_first_of(ustr.c_str(),cursor_pos);
long f = static_cast<long>(first);
long l = static_cast<long>(last);
if (first == string::npos)
f = -1;
if (last == string::npos)
l = static_cast<long>(text_.size());
++f;
--l;
move_cursor(l+1);
highlight_start = f;
highlight_end = l;
on_text_is_selected();
}
else
{
if (state & base_window::SHIFT)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
else
{
shift_pos = cursor_pos;
}
}
bool at_end = false;
if (cursor_pos == 0 || cursor_pos == static_cast<long>(text_.size()))
at_end = true;
const long old_pos = cursor_pos;
unsigned long new_pos = mfont->compute_cursor_pos(get_text_rect(),text_,x,y);
move_cursor(new_pos);
shift_pos = cursor_pos;
if (at_end && cursor_pos == old_pos)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
}
}
}
else if (has_focus && rect.contains(x,y) == false)
{
t.stop();
has_focus = false;
cursor_visible = false;
shift_pos = -1;
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
if (focus_lost_handler.is_set())
focus_lost_handler();
parent.invalidate_rectangle(rect);
}
else
{
has_focus = false;
}
}
// ----------------------------------------------------------------------------------------
void text_box::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
// If the right click menu is up then we don't want to do anything with
// the keyboard ourselves. Let the popup menu use the keyboard for now.
if (right_click_menu.popup_menu_visible())
return;
if (has_focus && enabled && !hidden)
{
const ustring space_str = convert_utf8_to_utf32(std::string(" \t\n"));
const bool shift = (state&base_window::KBD_MOD_SHIFT) != 0;
const bool ctrl = (state&base_window::KBD_MOD_CONTROL) != 0;
if (shift && is_printable == false)
{
if (shift_pos == -1)
{
if (highlight_start <= highlight_end)
{
if (highlight_start == cursor_pos)
shift_pos = highlight_end + 1;
else
shift_pos = highlight_start;
}
else
{
shift_pos = cursor_pos;
}
}
}
else
{
shift_pos = -1;
}
if (key == base_window::KEY_LEFT)
{
if (cursor_pos != 0)
{
unsigned long new_pos;
if (ctrl)
{
// find the first non-whitespace to our left
std::string::size_type pos = text_.find_last_not_of(space_str.c_str(),cursor_pos);
if (pos != std::string::npos)
{
pos = text_.find_last_of(space_str.c_str(),pos);
if (pos != std::string::npos)
new_pos = static_cast<unsigned long>(pos);
else
new_pos = 0;
}
else
{
new_pos = 0;
}
}
else
{
new_pos = cursor_pos-1;
}
move_cursor(new_pos);
}
else if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_RIGHT)
{
if (cursor_pos != static_cast<long>(text_.size()))
{
unsigned long new_pos;
if (ctrl)
{
// find the first non-whitespace to our left
std::string::size_type pos = text_.find_first_not_of(space_str.c_str(),cursor_pos);
if (pos != std::string::npos)
{
pos = text_.find_first_of(space_str.c_str(),pos);
if (pos != std::string::npos)
new_pos = static_cast<unsigned long>(pos+1);
else
new_pos = static_cast<unsigned long>(text_.size());
}
else
{
new_pos = static_cast<unsigned long>(text_.size());
}
}
else
{
new_pos = cursor_pos+1;
}
move_cursor(new_pos);
}
else if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_UP)
{
if (ctrl)
{
move_cursor(0);
}
else
{
const point origin(total_rect().left(), total_rect().top());
// move the cursor so the position that is just a few pixels above
// the current cursor_rect
move_cursor(mfont->compute_cursor_pos(
get_text_rect(), text_, cursor_rect.left()+origin.x(),
cursor_rect.top()+origin.y()-mfont->height()/2));
}
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_DOWN)
{
if (ctrl)
{
move_cursor(static_cast<unsigned long>(text_.size()));
}
else
{
const point origin(total_rect().left(), total_rect().top());
// move the cursor so the position that is just a few pixels above
// the current cursor_rect
move_cursor(mfont->compute_cursor_pos(
get_text_rect(), text_, cursor_rect.left()+origin.x(),
cursor_rect.bottom()+origin.y()+mfont->height()/2));
}
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (is_printable)
{
if (ctrl)
{
if (key == 'a')
{
on_select_all();
}
else if (key == 'c')
{
on_copy();
}
else if (key == 'v')
{
on_paste();
}
else if (key == 'x')
{
on_cut();
}
}
else
{
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + static_cast<unichar>(key) +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
adjust_total_rect();
move_cursor(highlight_start+1);
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
}
else
{
text_ = text_.substr(0,cursor_pos) + static_cast<unichar>(key) +
text_.substr(cursor_pos,text_.size()-cursor_pos);
adjust_total_rect();
move_cursor(cursor_pos+1);
}
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
if (key == '\n')
{
if (enter_key_handler.is_set())
enter_key_handler();
}
}
else if (key == base_window::KEY_BACKSPACE)
{
// if something is highlighted then delete that
if (highlight_start <= highlight_end)
{
on_delete_selected();
}
else if (cursor_pos != 0)
{
text_ = text_.erase(cursor_pos-1,1);
adjust_total_rect();
move_cursor(cursor_pos-1);
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
// do this just so it repaints itself right
move_cursor(cursor_pos);
}
}
else if (key == base_window::KEY_DELETE)
{
// if something is highlighted then delete that
if (highlight_start <= highlight_end)
{
on_delete_selected();
}
else if (cursor_pos != static_cast<long>(text_.size()))
{
text_ = text_.erase(cursor_pos,1);
adjust_total_rect();
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
else
{
// do this just so it repaints itself right
move_cursor(cursor_pos);
}
}
else if (key == base_window::KEY_HOME)
{
if (ctrl)
{
move_cursor(0);
}
else if (cursor_pos != 0)
{
// find the start of the current line
ustring::size_type pos = text_.find_last_of('\n',cursor_pos-1);
if (pos == ustring::npos)
pos = 0;
else
pos += 1;
move_cursor(static_cast<unsigned long>(pos));
}
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_END)
{
if (ctrl)
{
move_cursor(static_cast<unsigned long>(text_.size()));
}
{
ustring::size_type pos = text_.find_first_of('\n',cursor_pos);
if (pos == ustring::npos)
pos = text_.size();
move_cursor(static_cast<unsigned long>(pos));
}
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
parent.invalidate_rectangle(rect);
}
}
else if (key == base_window::KEY_PAGE_DOWN || key == base_window::KEY_PAGE_UP)
{
long jump_size = display_rect().height() -
std::min(mfont->height()*3, display_rect().height()/5);
// if we are supposed to page up then just jump in the other direction
if (key == base_window::KEY_PAGE_UP)
jump_size = -jump_size;
scroll_to_rect(translate_rect(display_rect(), point(0, jump_size )));
}
cursor_visible = true;
recent_movement = true;
}
}
// ----------------------------------------------------------------------------------------
void text_box::
on_string_put(
const std::wstring &str
)
{
if (has_focus && enabled && !hidden)
{
ustring ustr = convert_wstring_to_utf32(str);
if (highlight_start <= highlight_end)
{
text_ = text_.substr(0,highlight_start) + ustr +
text_.substr(highlight_end+1,text_.size()-highlight_end-1);
adjust_total_rect();
move_cursor(highlight_start+ustr.size());
highlight_start = 0;
highlight_end = -1;
on_no_text_selected();
}
else
{
text_ = text_.substr(0,cursor_pos) + ustr +
text_.substr(cursor_pos,text_.size()-cursor_pos);
adjust_total_rect();
move_cursor(cursor_pos+ustr.size());
}
// send out the text modified event
if (text_modified_handler.is_set())
text_modified_handler();
}
}
// ----------------------------------------------------------------------------------------
void text_box::
move_cursor (
unsigned long pos
)
{
using namespace std;
const long old_cursor_pos = cursor_pos;
// figure out where the cursor is supposed to be
cursor_rect = mfont->compute_cursor_rect(get_text_rect(), text_, pos);
const point origin(total_rect().left(), total_rect().top());
cursor_pos = pos;
const unsigned long padding = style->get_padding(*mfont);
// find the delta between the cursor rect and the corner of the total rect
point delta = point(cursor_rect.left(), cursor_rect.top()) - point(total_rect().left(), total_rect().top());
// now scroll us so that we can see the current cursor
scroll_to_rect(centered_rect(cursor_rect, cursor_rect.width() + padding + 6, cursor_rect.height() + 1));
// adjust the cursor_rect so that it is relative to the total_rect
cursor_rect = translate_rect(cursor_rect, -origin);
parent.set_im_pos(cursor_rect.left(), cursor_rect.top());
if (old_cursor_pos != cursor_pos)
{
if (shift_pos != -1)
{
highlight_start = std::min(shift_pos,cursor_pos);
highlight_end = std::max(shift_pos,cursor_pos)-1;
}
if (highlight_start > highlight_end)
on_no_text_selected();
else
on_text_is_selected();
recent_movement = true;
cursor_visible = true;
parent.invalidate_rectangle(display_rect());
}
if (shift_pos == -1)
{
highlight_start = 0;
highlight_end = -1;
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// image_display member functions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
namespace impl
{
class image_display_functor
{
const std::string str;
const member_function_pointer<const std::string&> mfp;
public:
image_display_functor (
const std::string& str_,
const member_function_pointer<const std::string&>& mfp_
) : str(str_),
mfp(mfp_)
{}
void operator() (
) const { mfp(str); }
};
}
image_display::
image_display(
drawable_window& w
):
scrollable_region(w,KEYBOARD_EVENTS),
zoom_in_scale(1),
zoom_out_scale(1),
drawing_rect(true),
rect_is_selected(false),
selected_rect(0),
default_rect_color(255,0,0,255),
parts_menu(w),
part_width(15), // width part circles are drawn on the screen
overlay_editing_enabled(true),
highlight_timer(*this, &image_display::timer_event_unhighlight_rect),
highlighted_rect(std::numeric_limits<unsigned long>::max())
{
enable_mouse_drag();
highlight_timer.set_delay_time(250);
set_horizontal_scroll_increment(1);
set_vertical_scroll_increment(1);
set_horizontal_mouse_wheel_scroll_increment(30);
set_vertical_mouse_wheel_scroll_increment(30);
parts_menu.disable();
enable_events();
}
// ----------------------------------------------------------------------------------------
void image_display::
on_part_add (
const std::string& part_name
)
{
if (!rect_is_selected)
return;
const rectangle valid_area = get_rect_on_screen(selected_rect);
const point loc = nearest_point(valid_area,last_right_click_pos);
// Transform loc from gui window space into the space used by the overlay
// rectangles (i.e. relative to the raw image)
const point origin(total_rect().tl_corner());
point c1 = loc - origin;
if (zoom_in_scale != 1)
{
c1 = c1/(double)zoom_in_scale;
}
else if (zoom_out_scale != 1)
{
c1 = c1*(double)zoom_out_scale;
}
overlay_rects[selected_rect].parts[part_name] = c1;
parent.invalidate_rectangle(rect);
if (event_handler.is_set())
event_handler();
}
// ----------------------------------------------------------------------------------------
image_display::
~image_display(
)
{
highlight_timer.stop_and_wait();
disable_events();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
rectangle image_display::
get_image_display_rect (
) const
{
if (zoom_in_scale != 1)
{
return rectangle(0,0, img.nc()*zoom_in_scale-1, img.nr()*zoom_in_scale-1);
}
else if (zoom_out_scale != 1)
{
return rectangle(0,0, img.nc()/zoom_out_scale-1, img.nr()/zoom_out_scale-1);
}
else
{
return dlib::get_rect(img);
}
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const overlay_rect& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_rects.push_back(overlay);
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const overlay_line& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_lines.push_back(overlay);
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(get_rect_on_screen(rectangle(overlay.p1, overlay.p2)));
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const overlay_circle& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_circles.push_back(overlay);
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const std::vector<overlay_rect>& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_rects.insert(overlay_rects.end(), overlay.begin(), overlay.end());
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const std::vector<overlay_line>& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_lines.insert(overlay_lines.end(), overlay.begin(), overlay.end());
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
add_overlay (
const std::vector<overlay_circle>& overlay
)
{
auto_mutex M(m);
// push this new overlay into our overlay vector
overlay_circles.insert(overlay_circles.end(), overlay.begin(), overlay.end());
// make the parent window redraw us now that we changed the overlay
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
clear_overlay (
)
{
auto_mutex M(m);
overlay_rects.clear();
overlay_lines.clear();
overlay_circles.clear();
parent.invalidate_rectangle(rect);
}
// ----------------------------------------------------------------------------------------
rectangle image_display::
get_rect_on_screen (
rectangle orect
) const
{
const point origin(total_rect().tl_corner());
orect.left() = orect.left()*zoom_in_scale/zoom_out_scale;
orect.top() = orect.top()*zoom_in_scale/zoom_out_scale;
if (zoom_in_scale != 1)
{
// make it so the box surrounds the pixels when we zoom in.
orect.right() = (orect.right()+1)*zoom_in_scale/zoom_out_scale;
orect.bottom() = (orect.bottom()+1)*zoom_in_scale/zoom_out_scale;
}
else
{
orect.right() = orect.right()*zoom_in_scale/zoom_out_scale;
orect.bottom() = orect.bottom()*zoom_in_scale/zoom_out_scale;
}
return translate_rect(orect, origin);
}
// ----------------------------------------------------------------------------------------
rectangle image_display::
get_rect_on_screen (
unsigned long idx
) const
{
return get_rect_on_screen(overlay_rects[idx].rect);
}
// ----------------------------------------------------------------------------------------
void image_display::
draw (
const canvas& c
) const
{
scrollable_region::draw(c);
rectangle area = display_rect().intersect(c);
if (area.is_empty())
return;
const point origin(total_rect().tl_corner());
// draw the image on the screen
const rectangle img_area = total_rect().intersect(area);
for (long row = img_area.top(); row <= img_area.bottom(); ++row)
{
for (long col = img_area.left(); col <= img_area.right(); ++col)
{
assign_pixel(c[row-c.top()][col-c.left()],
img[(row-origin.y())*zoom_out_scale/zoom_in_scale][(col-origin.x())*zoom_out_scale/zoom_in_scale]);
}
}
// now draw all the overlay rectangles
for (unsigned long i = 0; i < overlay_rects.size(); ++i)
{
const rectangle orect = get_rect_on_screen(i);
if (rect_is_selected && selected_rect == i)
{
draw_rectangle(c, orect, invert_pixel(overlay_rects[i].color), area);
}
else if (highlighted_rect < overlay_rects.size() && highlighted_rect == i)
{
// Draw the rectangle wider and with a slightly different color that tapers
// out at the edges of the line.
hsi_pixel temp;
assign_pixel(temp, 0);
assign_pixel(temp, overlay_rects[i].color);
temp.s = 255;
temp.h = temp.h + 20;
if (temp.i < 245)
temp.i += 10;
rgb_pixel p;
assign_pixel(p, temp);
rgb_alpha_pixel po, po2;
assign_pixel(po, p);
po.alpha = 160;
po2 = po;
po2.alpha = 90;
draw_rectangle(c, grow_rect(orect,2), po2, area);
draw_rectangle(c, grow_rect(orect,1), po, area);
draw_rectangle(c, orect, p, area);
draw_rectangle(c, shrink_rect(orect,1), po, area);
draw_rectangle(c, shrink_rect(orect,2), po2, area);
}
else
{
draw_rectangle(c, orect, overlay_rects[i].color, area);
}
if (overlay_rects[i].label.size() != 0)
{
// make a rectangle that is at the spot we want to draw our string
rectangle r(orect.br_corner(), c.br_corner());
mfont->draw_string(c, r, overlay_rects[i].label, overlay_rects[i].color, 0,
std::string::npos, area);
}
// draw circles for each "part" in this overlay rectangle.
std::map<std::string,point>::const_iterator itr;
for (itr = overlay_rects[i].parts.begin(); itr != overlay_rects[i].parts.end(); ++itr)
{
rectangle temp = centered_rect(get_rect_on_screen(centered_rect(itr->second,1,1)), part_width, part_width);
if (rect_is_selected && selected_rect == i &&
selected_part_name.size() != 0 && selected_part_name == itr->first)
{
draw_circle(c, center(temp), temp.width()/2, invert_pixel(overlay_rects[i].color), area);
}
else
{
draw_circle(c, center(temp), temp.width()/2, overlay_rects[i].color, area);
}
// make a rectangle that is at the spot we want to draw our string
rectangle r((temp.br_corner() + temp.bl_corner())/2,
c.br_corner());
mfont->draw_string(c, r, itr->first, overlay_rects[i].color, 0,
std::string::npos, area);
}
if (overlay_rects[i].crossed_out)
{
if (rect_is_selected && selected_rect == i)
{
draw_line(c, orect.tl_corner(), orect.br_corner(),invert_pixel(overlay_rects[i].color), area);
draw_line(c, orect.bl_corner(), orect.tr_corner(),invert_pixel(overlay_rects[i].color), area);
}
else
{
draw_line(c, orect.tl_corner(), orect.br_corner(),overlay_rects[i].color, area);
draw_line(c, orect.bl_corner(), orect.tr_corner(),overlay_rects[i].color, area);
}
}
}
// now draw all the overlay lines
for (unsigned long i = 0; i < overlay_lines.size(); ++i)
{
draw_line(c,
zoom_in_scale*overlay_lines[i].p1/zoom_out_scale + origin,
zoom_in_scale*overlay_lines[i].p2/zoom_out_scale + origin,
overlay_lines[i].color, area);
}
// now draw all the overlay circles
for (unsigned long i = 0; i < overlay_circles.size(); ++i)
{
const point center = zoom_in_scale*overlay_circles[i].center/zoom_out_scale + origin;
const int radius = zoom_in_scale*overlay_circles[i].radius/zoom_out_scale;
draw_circle(c,
center,
radius,
overlay_circles[i].color, area);
if (overlay_circles[i].label.size() != 0)
{
const point temp = center + point(0,radius);
// make a rectangle that is at the spot we want to draw our string
rectangle r(temp, c.br_corner());
mfont->draw_string(c, r, overlay_circles[i].label, overlay_circles[i].color, 0,
std::string::npos, area);
}
}
if (drawing_rect)
draw_rectangle(c, rect_to_draw, invert_pixel(default_rect_color), area);
}
// ----------------------------------------------------------------------------------------
void image_display::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
scrollable_region::on_keydown(key,is_printable, state);
if (!is_printable && !hidden && enabled && rect_is_selected &&
(key == base_window::KEY_BACKSPACE || key == base_window::KEY_DELETE))
{
rect_is_selected = false;
parts_menu.disable();
if (selected_part_name.size() == 0)
overlay_rects.erase(overlay_rects.begin() + selected_rect);
else
overlay_rects[selected_rect].parts.erase(selected_part_name);
parent.invalidate_rectangle(rect);
if (event_handler.is_set())
event_handler();
}
if (is_printable && !hidden && enabled && rect_is_selected && (key == 'i'))
{
overlay_rects[selected_rect].crossed_out = !overlay_rects[selected_rect].crossed_out;
parent.invalidate_rectangle(rect);
if (event_handler.is_set())
event_handler();
}
}
// ----------------------------------------------------------------------------------------
void image_display::
add_labelable_part_name (
const std::string& name
)
{
auto_mutex lock(m);
if (part_names.insert(name).second)
{
member_function_pointer<const std::string&> mfp;
mfp.set(*this,&image_display::on_part_add);
parts_menu.menu().add_menu_item(menu_item_text("Add " + name,impl::image_display_functor(name,mfp)));
}
}
// ----------------------------------------------------------------------------------------
void image_display::
clear_labelable_part_names (
)
{
auto_mutex lock(m);
part_names.clear();
parts_menu.menu().clear();
}
// ----------------------------------------------------------------------------------------
void image_display::
on_mouse_down (
unsigned long btn,
unsigned long state,
long x,
long y,
bool is_double_click
)
{
scrollable_region::on_mouse_down(btn, state, x, y, is_double_click);
if (rect.contains(x,y) == false || hidden || !enabled)
return;
if (image_clicked_handler.is_set())
{
const point origin(total_rect().tl_corner());
point p(x,y);
p -= origin;
if (zoom_in_scale != 1)
p = p/zoom_in_scale;
else if (zoom_out_scale != 1)
p = p*zoom_out_scale;
if (dlib::get_rect(img).contains(p))
image_clicked_handler(p, is_double_click, btn);
}
if (!overlay_editing_enabled)
return;
if (btn == base_window::RIGHT && rect_is_selected)
{
last_right_click_pos = point(x,y);
parts_menu.set_rect(get_rect_on_screen(selected_rect));
return;
}
if (btn == base_window::LEFT && (state&base_window::CONTROL) && !drawing_rect)
{
long best_dist = std::numeric_limits<long>::max();
long best_idx = 0;
// check if this click landed on any of the overlay rectangles
for (unsigned long i = 0; i < overlay_rects.size(); ++i)
{
const rectangle orect = get_rect_on_screen(i);
const long dist = distance_to_rect_edge(orect, point(x,y));
if (dist < best_dist)
{
best_dist = dist;
best_idx = i;
}
}
if (best_dist < 13)
{
overlay_rects[best_idx].label = default_rect_label;
highlighted_rect = best_idx;
highlight_timer.stop();
highlight_timer.start();
if (event_handler.is_set())
event_handler();
parent.invalidate_rectangle(rect);
}
return;
}
if (!is_double_click && btn == base_window::LEFT && (state&base_window::SHIFT))
{
drawing_rect = true;
rect_anchor = point(x,y);
if (rect_is_selected)
{
rect_is_selected = false;
parts_menu.disable();
parent.invalidate_rectangle(rect);
}
}
else if (drawing_rect)
{
if (rect_is_selected)
{
rect_is_selected = false;
parts_menu.disable();
}
drawing_rect = false;
parent.invalidate_rectangle(rect);
}
else if (is_double_click)
{
const bool rect_was_selected = rect_is_selected;
rect_is_selected = false;
parts_menu.disable();
long best_dist = std::numeric_limits<long>::max();
long best_idx = 0;
std::string best_part;
// check if this click landed on any of the overlay rectangles
for (unsigned long i = 0; i < overlay_rects.size(); ++i)
{
const rectangle orect = get_rect_on_screen(i);
const long dist = distance_to_rect_edge(orect, point(x,y));
if (dist < best_dist)
{
best_dist = dist;
best_idx = i;
best_part.clear();
}
std::map<std::string,point>::const_iterator itr;
for (itr = overlay_rects[i].parts.begin(); itr != overlay_rects[i].parts.end(); ++itr)
{
rectangle temp = centered_rect(get_rect_on_screen(centered_rect(itr->second,1,1)), part_width, part_width);
point c = center(temp);
// distance from edge of part circle
const long dist = static_cast<long>(std::abs(length(c - point(x,y)) + 0.5 - temp.width()/2));
if (dist < best_dist)
{
best_idx = i;
best_dist = dist;
best_part = itr->first;
}
}
}
if (best_dist < 13)
{
rect_is_selected = true;
if (part_names.size() != 0)
parts_menu.enable();
selected_rect = best_idx;
selected_part_name = best_part;
if (orect_selected_event_handler.is_set())
orect_selected_event_handler(overlay_rects[best_idx]);
}
if (rect_is_selected || rect_was_selected)
parent.invalidate_rectangle(rect);
}
else if (rect_is_selected)
{
rect_is_selected = false;
parts_menu.disable();
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
std::vector<image_display::overlay_rect> image_display::
get_overlay_rects (
) const
{
auto_mutex lock(m);
return overlay_rects;
}
// ----------------------------------------------------------------------------------------
void image_display::
set_default_overlay_rect_label (
const std::string& label
)
{
auto_mutex lock(m);
default_rect_label = label;
}
// ----------------------------------------------------------------------------------------
std::string image_display::
get_default_overlay_rect_label (
) const
{
auto_mutex lock(m);
return default_rect_label;
}
// ----------------------------------------------------------------------------------------
void image_display::
set_default_overlay_rect_color (
const rgb_alpha_pixel& color
)
{
auto_mutex lock(m);
default_rect_color = color;
}
// ----------------------------------------------------------------------------------------
rgb_alpha_pixel image_display::
get_default_overlay_rect_color (
) const
{
auto_mutex lock(m);
return default_rect_color;
}
// ----------------------------------------------------------------------------------------
void image_display::
on_mouse_up (
unsigned long btn,
unsigned long state,
long x,
long y
)
{
scrollable_region::on_mouse_up(btn,state,x,y);
if (drawing_rect && btn == base_window::LEFT && (state&base_window::SHIFT) &&
!hidden && enabled)
{
const point origin(total_rect().tl_corner());
point c1 = point(x,y) - origin;
point c2 = rect_anchor - origin;
if (zoom_in_scale != 1)
{
c1 = c1/(double)zoom_in_scale;
c2 = c2/(double)zoom_in_scale;
}
else if (zoom_out_scale != 1)
{
c1 = c1*(double)zoom_out_scale;
c2 = c2*(double)zoom_out_scale;
}
rectangle new_rect(c1,c2);
if (zoom_in_scale != 1)
{
// When we are zoomed in we adjust the rectangles a little so they
// are drown surrounding the pixels inside the rect. This adjustment
// is necessary to make this code consistent with this goal.
new_rect.right() -= 1;
new_rect.bottom() -= 1;
}
if (new_rect.width() > 0 && new_rect.height() > 0)
{
add_overlay(overlay_rect(new_rect, default_rect_color, default_rect_label));
if (event_handler.is_set())
event_handler();
}
}
if (drawing_rect)
{
drawing_rect = false;
parent.invalidate_rectangle(rect);
}
}
// ----------------------------------------------------------------------------------------
void image_display::
on_mouse_move (
unsigned long state,
long x,
long y
)
{
scrollable_region::on_mouse_move(state,x,y);
if (drawing_rect)
{
if ((state&base_window::LEFT) && (state&base_window::SHIFT) && !hidden && enabled)
{
rectangle new_rect(point(x,y), rect_anchor);
parent.invalidate_rectangle(new_rect + rect_to_draw);
rect_to_draw = new_rect;
}
else
{
drawing_rect = false;
parent.invalidate_rectangle(rect);
}
}
}
// ----------------------------------------------------------------------------------------
void image_display::
on_wheel_up (
unsigned long state
)
{
// disable mouse wheel if the user is drawing a rectangle
if (drawing_rect)
return;
// if CONTROL is not being held down
if ((state & base_window::CONTROL) == 0)
{
scrollable_region::on_wheel_up(state);
return;
}
if (rect.contains(lastx,lasty) == false || hidden || !enabled)
return;
if (zoom_in_scale < 100 && zoom_out_scale == 1)
{
const point mouse_loc(lastx, lasty);
// the pixel in img that the mouse is over
const point pix_loc = (mouse_loc - total_rect().tl_corner())/zoom_in_scale;
zoom_in_scale = zoom_in_scale*10/9 + 1;
set_total_rect_size(img.nc()*zoom_in_scale, img.nr()*zoom_in_scale);
// make is to the pixel under the mouse doesn't move while we zoom
const point delta = total_rect().tl_corner() - (mouse_loc - pix_loc*zoom_in_scale);
scroll_to_rect(translate_rect(display_rect(), delta));
}
else if (zoom_out_scale != 1)
{
const point mouse_loc(lastx, lasty);
// the pixel in img that the mouse is over
const point pix_loc = (mouse_loc - total_rect().tl_corner())*zoom_out_scale;
zoom_out_scale = zoom_out_scale*9/10;
if (zoom_out_scale == 0)
zoom_out_scale = 1;
set_total_rect_size(img.nc()/zoom_out_scale, img.nr()/zoom_out_scale);
// make is to the pixel under the mouse doesn't move while we zoom
const point delta = total_rect().tl_corner() - (mouse_loc - pix_loc/zoom_out_scale);
scroll_to_rect(translate_rect(display_rect(), delta));
}
}
// ----------------------------------------------------------------------------------------
void image_display::
on_wheel_down (
unsigned long state
)
{
// disable mouse wheel if the user is drawing a rectangle
if (drawing_rect)
return;
// if CONTROL is not being held down
if ((state & base_window::CONTROL) == 0)
{
scrollable_region::on_wheel_down(state);
return;
}
if (rect.contains(lastx,lasty) == false || hidden || !enabled)
return;
if (zoom_in_scale != 1)
{
const point mouse_loc(lastx, lasty);
// the pixel in img that the mouse is over
const point pix_loc = (mouse_loc - total_rect().tl_corner())/zoom_in_scale;
zoom_in_scale = zoom_in_scale*9/10;
if (zoom_in_scale == 0)
zoom_in_scale = 1;
set_total_rect_size(img.nc()*zoom_in_scale, img.nr()*zoom_in_scale);
// make is to the pixel under the mouse doesn't move while we zoom
const point delta = total_rect().tl_corner() - (mouse_loc - pix_loc*zoom_in_scale);
scroll_to_rect(translate_rect(display_rect(), delta));
}
else if (std::max(img.nr(), img.nc())/zoom_out_scale > 10)
{
const point mouse_loc(lastx, lasty);
// the pixel in img that the mouse is over
const point pix_loc = (mouse_loc - total_rect().tl_corner())*zoom_out_scale;
zoom_out_scale = zoom_out_scale*10/9 + 1;
set_total_rect_size(img.nc()/zoom_out_scale, img.nr()/zoom_out_scale);
// make is to the pixel under the mouse doesn't move while we zoom
const point delta = total_rect().tl_corner() - (mouse_loc - pix_loc/zoom_out_scale);
scroll_to_rect(translate_rect(display_rect(), delta));
}
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// image_window member functions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
image_window::
image_window(
) :
gui_img(*this),
window_has_closed(false),
have_last_click(false),
mouse_btn(0),
clicked_signaler(this->wm),
tie_input_events(false)
{
gui_img.set_image_clicked_handler(*this, &image_window::on_image_clicked);
gui_img.disable_overlay_editing();
// show this window on the screen
show();
}
// ----------------------------------------------------------------------------------------
image_window::
~image_window(
)
{
// You should always call close_window() in the destructor of window
// objects to ensure that no events will be sent to this window while
// it is being destructed.
close_window();
}
// ----------------------------------------------------------------------------------------
base_window::on_close_return_code image_window::
on_window_close(
)
{
window_has_closed = true;
clicked_signaler.broadcast();
return base_window::CLOSE_WINDOW;
}
// ----------------------------------------------------------------------------------------
bool image_window::
get_next_keypress (
unsigned long& key,
bool& is_printable,
unsigned long& state
)
{
auto_mutex lock(wm);
while (have_last_keypress == false && !window_has_closed &&
(have_last_click == false || !tie_input_events))
{
clicked_signaler.wait();
}
if (window_has_closed)
return false;
if (have_last_keypress)
{
// Mark that we are taking the key click so the next call to get_next_keypress()
// will have to wait for another click.
have_last_keypress = false;
key = next_key;
is_printable = next_is_printable;
state = next_state;
return true;
}
else
{
key = 0;
is_printable = true;
return false;
}
}
// ----------------------------------------------------------------------------------------
void image_window::
on_keydown (
unsigned long key,
bool is_printable,
unsigned long state
)
{
dlib::drawable_window::on_keydown(key,is_printable,state);
have_last_keypress = true;
next_key = key;
next_is_printable = is_printable;
next_state = state;
clicked_signaler.signal();
}
// ----------------------------------------------------------------------------------------
void image_window::
tie_events (
)
{
auto_mutex lock(wm);
tie_input_events = true;
}
// ----------------------------------------------------------------------------------------
void image_window::
untie_events (
)
{
auto_mutex lock(wm);
tie_input_events = false;
}
// ----------------------------------------------------------------------------------------
bool image_window::
events_tied (
) const
{
auto_mutex lock(wm);
return tie_input_events;
}
// ----------------------------------------------------------------------------------------
bool image_window::
get_next_double_click (
point& p,
unsigned long& mouse_button
)
{
p = point(-1,-1);
auto_mutex lock(wm);
while (have_last_click == false && !window_has_closed &&
(have_last_keypress==false || !tie_input_events))
{
clicked_signaler.wait();
}
if (window_has_closed)
return false;
if (have_last_click)
{
// Mark that we are taking the point click so the next call to
// get_next_double_click() will have to wait for another click.
have_last_click = false;
mouse_button = mouse_btn;
p = last_clicked_point;
return true;
}
else
{
return false;
}
}
// ----------------------------------------------------------------------------------------
void image_window::
on_image_clicked (
const point& p,
bool is_double_click,
unsigned long btn
)
{
if (is_double_click)
{
have_last_click = true;
last_clicked_point = p;
mouse_btn = btn;
clicked_signaler.signal();
}
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const overlay_rect& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const overlay_line& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const overlay_circle& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const std::vector<overlay_rect>& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const std::vector<overlay_line>& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
add_overlay (
const std::vector<overlay_circle>& overlay
)
{
gui_img.add_overlay(overlay);
}
// ----------------------------------------------------------------------------------------
void image_window::
clear_overlay (
)
{
gui_img.clear_overlay();
}
// ----------------------------------------------------------------------------------------
void image_window::
on_window_resized(
)
{
drawable_window::on_window_resized();
unsigned long width, height;
get_size(width,height);
gui_img.set_size(width, height);
}
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_WIDGETs_CPP_
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