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Added composite stuff (alpha stage, of course).

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A lot of things are pending for implementation like region translucency, shadows, fading...
Per window translucency is in, but now working as expected.
This commit is contained in:
Sanel Zukan
2007-12-28 10:58:56 +00:00
parent 9f65ff5859
commit d7db3f0d0f
11 changed files with 1482 additions and 4 deletions
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46
evoke/test/opacity_test.cpp Normal file
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#include <FL/Fl.h>
#include <FL/Fl_Window.h>
#include <FL/Fl_Box.h>
#include <FL/Fl_Value_Slider.h>
#include <FL/x.h>
#include <stdio.h>
Fl_Window* win;
Fl_Value_Slider* slider;
Atom opacity_atom;
void slider_cb(Fl_Widget*, void*) {
printf("callback %i\n", (int)slider->value());
//int v = (int)slider->value();
//unsigned int v = (unsigned int)0xe0000000;
unsigned int v = (unsigned int)4;
XChangeProperty(fl_display, fl_xid(win), opacity_atom, XA_CARDINAL, 32, PropModeReplace, (unsigned char*)&v, 1);
XFlush(fl_display);
}
int main(void) {
fl_open_display();
opacity_atom = XInternAtom(fl_display, "_NET_WM_WINDOW_OPACITY", False);
win = new Fl_Window(240, 175, "Opacity test");
win->begin();
Fl_Box* sbox = new Fl_Box(10, 9, 220, 102, "sample text");
sbox->box(FL_ENGRAVED_BOX);
sbox->color((Fl_Color)186);
sbox->labelcolor((Fl_Color)23);
slider = new Fl_Value_Slider(10, 142, 220, 18, "Opacity percent:");
slider->type(1);
slider->step(1);
slider->maximum(100);
slider->minimum(1);
slider->value(100);
slider->callback(slider_cb);
slider->align(FL_ALIGN_TOP_LEFT);
win->end();
win->show();
slider_cb(0,0);
return Fl::run();
}