- Moved wxApp::SendIdleEvents and wxApp::ProcessIdle into common code.

- wxWindow::OnInternalIdle is now used in all ports, and ensures that
  user OnIdle events do not interfere with crucial internal processing.
- wxWindow::UpdateWindowUI is now a documented function that
  sends wxUpdateUIEvents, and can be overridden. It has a helper function
  DoUpdateWindowUI for taking appropriate wxUpdateUIEvent action.
- Added functions to wxUpdateUIEvent: Set/GetMode, Set/GetUpdateInterval,
  CanUpdate, to assist with optimising update event frequency.
- Added functions to wxIdleEvent: Set/GetMode, CanSend, to
  determine whether a window should receive idle events.
- Added wxWS_EX_PROCESS_IDLE, wxWS_EX_PROCESS_UI_UPDATES window
  styles for use with conservative idle and update event modes.
- wxMSW and wxGTK now send menu update events only when a menu is
  about to be used.
- Added WM_INITMENU processing instead of WM_ENTERMENULOOP, or
  accelerators don't always get called since menu items may still
  be disabled.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@21789 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appcmn.cpp

@@ -205,6 +205,72 @@ void wxAppBase::DeletePendingObjects()
     }
 }
 
+// Returns TRUE if more time is needed.
+bool wxAppBase::ProcessIdle()
+{
+    wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
+    node = wxTopLevelWindows.GetFirst();
+    while (node)
+    {
+        wxWindow* win = node->GetData();
+        win->ProcessInternalIdle();
+        node = node->GetNext();
+    }
+
+    wxIdleEvent event;
+    event.SetEventObject(this);
+    bool processed = ProcessEvent(event);
+
+    wxUpdateUIEvent::ResetUpdateTime();
+    
+    return processed && event.MoreRequested();
+}
+
+// Send idle event to all top-level windows
+bool wxAppBase::SendIdleEvents()
+{
+    bool needMore = FALSE;
+
+    wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
+    while (node)
+    {
+        wxWindow* win = node->GetData();
+        if (SendIdleEvents(win))
+            needMore = TRUE;
+        node = node->GetNext();
+    }
+
+    return needMore;
+}
+
+// Send idle event to window and all subwindows
+bool wxAppBase::SendIdleEvents(wxWindow* win)
+{
+    bool needMore = FALSE;
+    
+    if (wxIdleEvent::CanSend(win))
+    {
+        wxIdleEvent event;
+        event.SetEventObject(win);
+        win->GetEventHandler()->ProcessEvent(event);
+
+        needMore = event.MoreRequested();
+    }
+
+    wxWindowList::Node *node = win->GetChildren().GetFirst();
+    while ( node )
+    {
+        wxWindow *win = node->GetData();
+        if (SendIdleEvents(win))
+            needMore = TRUE;
+
+        node = node->GetNext();
+    }
+
+    return needMore;
+}
+
+
 // ----------------------------------------------------------------------------
 // wxGUIAppTraitsBase
 // ----------------------------------------------------------------------------