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Fix "Transparent PNGs not rendered correctly when window is scaled" (#1375)
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This commit is contained in:
ManoloFLTK
2026-03-09 12:17:10 +01:00
parent 3d493308ed
commit ea27dafe1e
1 changed files with 7 additions and 1 deletions
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src/Fl_Image.cxx
+7 -1
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@@ -892,7 +892,13 @@ void Fl_RGB_Image::draw(int XP, int YP, int WP, int HP, int cx, int cy) {
// fl_max(cx, 0),fl_max(cy, 0) = top-left of drawn part in image.
int l = (ld() ? ld() : d() * w());
const uchar *p = array + fl_max(cy, 0) * l + fl_max(cx, 0) * d();
fl_graphics_driver->draw_image(p, r1.x, r1.y, r1.width, r1.height, d(), l);
if (d() % 2) { // use draw_image() without transparenvy
fl_graphics_driver->draw_image(p, r1.x, r1.y, r1.width, r1.height, d(), l);
} else { // with transparency, build temporary RGB image and draw it
Fl_RGB_Image *temp_rgb = new Fl_RGB_Image(p, r1.width, r1.height, d(), l);
fl_graphics_driver->draw_rgb(temp_rgb, r1.x, r1.y, r1.width, r1.height, 0, 0);
delete temp_rgb;
}
} else
fl_graphics_driver->draw_rgb(this, XP, YP, WP, HP, cx, cy);
}