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authorAlbrecht Schlosser <albrechts.fltk@online.de>2010-06-09 08:36:25 +0000
committerAlbrecht Schlosser <albrechts.fltk@online.de>2010-06-09 08:36:25 +0000
commit755f354ebe0a2f9c3ee287c53013279fd864ebbe (patch)
treeeb13f8d9150977b4977764698b67e558b8c63ebb
parentd7fdaf8262180573de0e838a70c1368641b82a8e (diff)
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
-rw-r--r--CHANGES1
-rw-r--r--src/Fl_Double_Window.cxx12
-rw-r--r--src/Fl_Overlay_Window.cxx2
3 files changed, 12 insertions, 3 deletions
diff --git a/CHANGES b/CHANGES
index 1d6fd3977..dc7878b18 100644
--- a/CHANGES
+++ b/CHANGES
@@ -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)
diff --git a/src/Fl_Double_Window.cxx b/src/Fl_Double_Window.cxx
index bd2155329..88ccfd962 100644
--- a/src/Fl_Double_Window.cxx
+++ b/src/Fl_Double_Window.cxx
@@ -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())) {
diff --git a/src/Fl_Overlay_Window.cxx b/src/Fl_Overlay_Window.cxx
index 8acb4af35..581c7057d 100644
--- a/src/Fl_Overlay_Window.cxx
+++ b/src/Fl_Overlay_Window.cxx
@@ -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();