138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
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/*
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* Author: Harry van Haaren 2013
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* harryhaaren@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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#ifndef AVTK_IMAGE_H
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#define AVTK_IMAGE_H
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#include <FL/Fl_Widget.H>
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#include <vector>
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#include <string>
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#include <iostream>
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#include <stdio.h>
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using namespace std;
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namespace Avtk
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{
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class Image : public Fl_Widget
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{
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public:
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Image(int _x, int _y, int _w, int _h, const char *_label=0 ):
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Fl_Widget(_x, _y, _w, _h, _label)
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{
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x = _x;
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y = _y;
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w = _w;
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h = _h;
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label = _label;
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imageSurf = 0;
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if ( _label )
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{
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//cout << "creating image from label" << endl;
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imageSurf = cairo_image_surface_create_from_png( label );
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}
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}
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int x, y, w, h;
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const char* label;
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cairo_surface_t* imageSurf;
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void draw()
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{
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if (damage() & FL_DAMAGE_ALL)
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{
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cairo_t *cr = Fl::cairo_cc();
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//cairo_save(cr);
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if ( imageSurf == 0 )
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{
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// draw X
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cairo_move_to( cr, x , y );
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cairo_line_to( cr, x + w, y + h );
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cairo_move_to( cr, x , y + h );
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cairo_line_to( cr, x + w, y );
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cairo_set_source_rgb ( cr, 0.2,0.2,0.2);
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cairo_stroke(cr);
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// draw text
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cairo_move_to( cr, x + (w/2.f) - 65, y + (h/2.f) + 10 );
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cairo_set_source_rgb ( cr, 0.6,0.6,0.6);
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cairo_set_font_size( cr, 20 );
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cairo_show_text( cr, "Image not loaded" );
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return;
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}
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// draw the image to the context
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cairo_set_source_surface(cr, imageSurf, x, y);
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//cairo_rectangle( cr, x, y, w, h );
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cairo_paint(cr);
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//cairo_restore(cr);
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}
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}
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void resize(int X, int Y, int W, int H)
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{
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Fl_Widget::resize(X,Y,W,H);
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x = X;
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y = Y;
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w = W;
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h = H;
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redraw();
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}
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int handle(int event)
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{
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switch(event)
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{
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case FL_PUSH:
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do_callback();
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return 1;
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case FL_DRAG:
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return 1;
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case FL_RELEASE:
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return 1;
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case FL_SHORTCUT:
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if ( test_shortcut() )
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{
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do_callback();
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return 1;
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}
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return 0;
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default:
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return Fl_Widget::handle(event);
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}
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}
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};
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} // Avtk
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#endif
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