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//
// Copyright 2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.
#include <FL/Fl.H>
#include <FL/x.H>
#include <FL/fl_draw.H>
#include "ScreenDump.H"
ScreenDump::ScreenDump(Fl_Widget *widget) {
Fl_Offscreen offscreen;
int x, y;
x = widget->x();
y = widget->y();
w = widget->w();
h = widget->h();
Fl::flush();
widget->resize(0, 0, w, h);
offscreen = fl_create_offscreen(w, h);
fl_begin_offscreen(offscreen);
widget->redraw();
widget->draw();
fl_color(FL_YELLOW);
fl_draw("created with gipfel", w - 80, h - 10);
rgb = fl_read_image(NULL, 0, 0, w, h);
fl_end_offscreen();
fl_delete_offscreen(offscreen);
widget->resize(x, y, w, h);
}
ScreenDump::~ScreenDump() {
if (rgb)
delete[] rgb;
}
int
ScreenDump::save(OutputImage *out) {
if (!rgb)
return 1;
out->init(w, h);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
unsigned char *px = &rgb[(y * w + x) * 3];
out->set_pixel(x, px[0] * 255, px[1] * 255, px[2] * 255);
}
out->next_line();
}
return out->done();
}
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