Loopp/src/avtk/avtk_button.h

181 lines
3.8 KiB
C++

/*
* Author: Harry van Haaren 2013
* harryhaaren@gmail.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AVTK_BUTTON_H
#define AVTK_BUTTON_H
#include <FL/Fl_Button.H>
namespace Avtk
{
class Button : public Fl_Button
{
public:
Button(int _x, int _y, int _w, int _h, const char *_label):
Fl_Button(_x, _y, _w, _h, _label)
{
x = _x;
y = _y;
w = _w;
h = _h;
labelMe = _label;
setLabel( labelMe );
_r = 1.0;
_g = 0.48;
_b = 0.0;
_bgr = 0.11;
_bgg = 0.11;
_bgb = 0.11;
highlight = false;
mouseOver = false;
}
bool mouseOver;
bool highlight;
int x, y, w, h;
const char* labelMe;
void setLabel( const char* l)
{
labelMe = l;
label( labelMe );
redraw();
}
float _r, _g, _b; // foreground colour
float _bgr, _bgg, _bgb; // background colour
float _outr, _outg, _outb; // outline colour
void setColor(float r, float g, float b)
{
_r = r;
_g = g;
_b = b;
}
void setBgColor(float r, float g, float b)
{
_bgr = r;
_bgg = g;
_bgb = b;
}
void setHighlight(bool b)
{
highlight = b; redraw();
}
void draw()
{
if (damage() & FL_DAMAGE_ALL)
{
cairo_t *cr = Fl::cairo_cc();
cairo_save( cr );
cairo_rectangle( cr, x+1, y+1, w-2, h-2 );
cairo_set_source_rgb( cr, _bgr, _bgg, _bgb );
cairo_fill_preserve(cr);
cairo_set_line_width(cr, 1.3);
cairo_rectangle( cr, x+1, y+1, w-2, h-2 );
if ( highlight )
{
cairo_set_source_rgba(cr, _r, _g, _b, 0.4);
cairo_fill_preserve(cr);
}
float alpha = 0.6;
if (mouseOver)
alpha = 1;
cairo_set_source_rgba(cr, _r, _g, _b, alpha);
if ( highlight )
cairo_set_line_width(cr, 2.2);
cairo_stroke(cr);
cairo_restore( cr );
draw_label();
}
}
void resize(int X, int Y, int W, int H)
{
Fl_Widget::resize(X,Y,W,H);
x = X;
y = Y;
w = W;
h = H;
redraw();
}
int handle(int event)
{
switch(event) {
case FL_PUSH:
highlight = 1;
redraw();
return 1;
case FL_DRAG: {
int t = Fl::event_inside(this);
if (t != highlight) {
highlight = t;
redraw();
}
}
return 1;
case FL_ENTER:
mouseOver = true;
redraw();
return 1;
case FL_LEAVE:
mouseOver = false;
redraw();
return 1;
case FL_RELEASE:
if (highlight) {
highlight = 0;
redraw();
do_callback();
}
return 1;
case FL_SHORTCUT:
if ( test_shortcut() )
{
do_callback();
return 1;
}
return 0;
default:
return Fl_Widget::handle(event);
}
}
};
} // Avtk
#endif // AVTK_BUTTON_H