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Fixed X11/XDBE double buffering (STR #2152, #2197). Both bugs could only be 

seen if configure was run with --enable-xdbe (default in FLTK 1.3, optional
in FLTK 1.1).

src/Fl_Double_Window.cxx/Fl_Double_Window::resize():

	STR #2152: deallocate back buffer when window is enlarged in any
	dimension to force allocation of a new back buffer. This appears
	to be necessary for some window managers (e.g. Cygwin).

src/Fl_Overlay_Window.cxx/Fl_Overlay_Window::flush() and
src/Fl_Double_Window.cxx/Fl_Double_Window::flush():

	STR #2197: make sure that the entire overlay window will be drawn
	after a window redraw, because Fl_Double_Window::flush(1) erases
	the overlay as documented.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7636 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser 2010-06-09 08:36:25 +00:00
parent d7fdaf8262
commit 755f354ebe
3 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGES
View File

@ -1,5 +1,6 @@
CHANGES IN FLTK 1.3.0
- Fixed X11/XDBE double buffering (STR #2152, #2197)
- Added new label and image alignments (STR #2269)
- Added documentation for event delivery (STR #1983)
- Fixed menu and tooltip window animation bug under X11 (compiz)

12
src/Fl_Double_Window.cxx
View File

@ -296,7 +296,7 @@ void Fl_Double_Window::flush(int eraseoverlay) {
}
#if USE_XDBE
if (use_xdbe) {
if (myi->backbuffer_bad) {
if (myi->backbuffer_bad || eraseoverlay) {
// Make sure we do a complete redraw...
if (myi->region) {XDestroyRegion(myi->region); myi->region = 0;}
clear_damage(FL_DAMAGE_ALL);
@ -360,7 +360,15 @@ void Fl_Double_Window::resize(int X,int Y,int W,int H) {
int oh = h();
Fl_Window::resize(X,Y,W,H);
#if USE_XDBE
if (use_xdbe) return;
if (use_xdbe) {
Fl_X* myi = Fl_X::i(this);
if (myi && myi->other_xid && (ow < w() || oh < h())) {
// STR #2152: Deallocate the back buffer to force creation of a new one.
XdbeDeallocateBackBufferName(fl_display,myi->other_xid);
myi->other_xid = 0;
}
return;
}
#endif
Fl_X* myi = Fl_X::i(this);
if (myi && myi->other_xid && (ow != w() || oh != h())) {

2
src/Fl_Overlay_Window.cxx
View File

@ -61,7 +61,7 @@ void Fl_Overlay_Window::flush() {
return;
}
#endif
int erase_overlay = (damage()&FL_DAMAGE_OVERLAY);
int erase_overlay = (damage()&FL_DAMAGE_OVERLAY) | (overlay_ == this);
clear_damage((uchar)(damage()&~FL_DAMAGE_OVERLAY));
Fl_Double_Window::flush(erase_overlay);
if (overlay_ == this) draw_overlay();