gre-ilya/fltk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix Fl_X11_Window_Driver::flush_double(int) that could fail when scaling is applied (#1370)

Browse Source
This commit is contained in:
ManoloFLTK 2026-03-16 11:51:23 +01:00
parent abaa550aea
commit dd260389ec
1 changed files with 12 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/drivers/X11/Fl_X11_Window_Driver.cxx
View File

@ -172,19 +172,21 @@ void Fl_X11_Window_Driver::flush_double(int erase_overlay)
cairo_t *cairo_ = ((Fl_Cairo_Graphics_Driver*)other_xid->driver())->cr();
((Fl_X11_Cairo_Graphics_Driver*)fl_graphics_driver)->set_cairo(cairo_);
#endif
if (pWindow->damage() & ~FL_DAMAGE_EXPOSE) {
fl_clip_region(i->region); i->region = 0;
fl_window = other_xid->offscreen();
bool use_clip_box = true;
if (pWindow->damage() & ~FL_DAMAGE_EXPOSE) {
use_clip_box = false;
fl_clip_region(i->region); i->region = 0;
fl_window = other_xid->offscreen();
# if defined(FLTK_HAVE_CAIROEXT)
if (Fl::cairo_autolink_context()) Fl::cairo_make_current(pWindow);
if (Fl::cairo_autolink_context()) Fl::cairo_make_current(pWindow);
# endif
draw();
fl_window = i->xid;
}
draw();
fl_window = i->xid;
}
if (erase_overlay) fl_clip_region(0);
int X = 0, Y = 0, W = 0, H = 0;
fl_clip_box(0, 0, w(), h(), X, Y, W, H);
if (other_xid) fl_copy_offscreen(X, Y, W, H, other_xid->offscreen(), X, Y);
int X = 0, Y = 0, W = w(), H = h();
if (use_clip_box) fl_clip_box(0, 0, w(), h(), X, Y, W, H);
fl_copy_offscreen(X, Y, W, H, other_xid->offscreen(), X, Y);
}