Fix small problem in win->wait_for_expose() for a window that has sub…

…windows.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11348 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

src/Fl_cocoa.mm

@@ -654,6 +654,7 @@ - (Fl_Window *)getFl_Window;
 - (void)recursivelySendToSubwindows:(SEL)sel;
 - (void)setSubwindowFrame;
 - (void)checkSubwindowFrame;
+- (void)waitForExpose;
 - (NSRect)constrainFrameRect:(NSRect)frameRect toScreen:(NSScreen *)screen;
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
 - (NSPoint)convertBaseToScreen:(NSPoint)aPoint;
@@ -774,6 +775,16 @@ - (void)checkSubwindowFrame {
   }
 }
 
+-(void)waitForExpose
+{
+  if ([self getFl_Window]->shown()) {
+    // this makes freshly created windows appear on the screen, if they are not there already
+    NSModalSession session = [NSApp beginModalSessionForWindow:self];
+    [NSApp runModalSession:session];
+    [NSApp endModalSession:session];
+  }
+}
+
 /* With Mac OS 10.11 the green window button makes window fullscreen (covers system menu bar and dock).
  When there are subwindows, they are by default constrained not to cover the menu bar
  (this is arguably a Mac OS bug).
@@ -3097,12 +3108,7 @@ - (NSInteger)windowLevel {
 
 void Fl_Cocoa_Window_Driver::wait_for_expose()
 {
-  if (pWindow->shown()) { //TODO: do that also for pWindow's subwindows
-    // this makes freshly created windows appear on the screen, if they are not there already
-    NSModalSession session = [NSApp beginModalSessionForWindow:Fl_X::i(pWindow)->xid];
-    [NSApp runModalSession:session];
-    [NSApp endModalSession:session];
-  }
+  [fl_xid(pWindow) recursivelySendToSubwindows:@selector(waitForExpose)];
 }
 
 /*