X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0dba08dd3987303ff116bf77d5fb877b6d8f32d0..dc813e6c7ef8a9a26c035b004b512e1aa1b0bf3f:/src/msw/toolbar.cpp?ds=sidebyside

diff --git a/src/msw/toolbar.cpp b/src/msw/toolbar.cpp
index 33c4950b30..6399465223 100644
--- a/src/msw/toolbar.cpp
+++ b/src/msw/toolbar.cpp
@@ -1218,9 +1218,10 @@ bool wxToolBar::MSWCommand(WXUINT WXUNUSED(cmd), WXWORD id_)
 
     bool toggled = false; // just to suppress warnings
 
+    LRESULT state = ::SendMessage(GetHwnd(), TB_GETSTATE, id, 0);
+
     if ( tool->CanBeToggled() )
     {
-        LRESULT state = ::SendMessage(GetHwnd(), TB_GETSTATE, id, 0);
         toggled = (state & TBSTATE_CHECKED) != 0;
 
         // ignore the event when a radio button is released, as this doesn't
@@ -1232,9 +1233,38 @@ bool wxToolBar::MSWCommand(WXUINT WXUNUSED(cmd), WXWORD id_)
         UnToggleRadioGroup(tool);
     }
 
+    // Without the two lines of code below, if the toolbar was repainted during
+    // OnLeftClick(), then it could end up without the tool bitmap temporarily
+    // (see http://lists.nongnu.org/archive/html/lmi/2008-10/msg00014.html).
+    // The Update() call bellow ensures that this won't happen, by repainting
+    // invalidated areas of the toolbar immediately.
+    //
+    // To complicate matters, the tool would be drawn in depressed state (this
+    // code is called when mouse button is released, not pressed). That's not
+    // ideal, having the tool pressed for the duration of OnLeftClick()
+    // provides the user with useful visual clue that the app is busy reacting
+    // to the event. So we manually put the tool into pressed state, handle the
+    // event and then finally restore tool's original state.
+    ::SendMessage(GetHwnd(), TB_SETSTATE, id, MAKELONG(state | TBSTATE_PRESSED, 0));
+    Update();
+
+    bool allowLeftClick = OnLeftClick(id, toggled);
+
+    // Restore the unpressed state. Enabled/toggled state might have been
+    // changed since so take care of it.
+    if (tool->IsEnabled())
+        state |= TBSTATE_ENABLED;
+    else
+        state &= ~TBSTATE_ENABLED;
+    if (tool->IsToggled())
+        state |= TBSTATE_CHECKED;
+    else
+        state &= ~TBSTATE_CHECKED;
+    ::SendMessage(GetHwnd(), TB_SETSTATE, id, MAKELONG(state, 0));
+
     // OnLeftClick() can veto the button state change - for buttons which
     // may be toggled only, of couse
-    if ( !OnLeftClick(id, toggled) && tool->CanBeToggled() )
+    if ( !allowLeftClick && tool->CanBeToggled() )
     {
         // revert back
         tool->Toggle(!toggled);
@@ -1480,7 +1510,7 @@ void wxToolBar::DoSetToggle(wxToolBarToolBase *WXUNUSED(tool), bool WXUNUSED(tog
 
 void wxToolBar::SetToolNormalBitmap( int id, const wxBitmap& bitmap )
 {
-    wxToolBarTool* tool = wx_static_cast(wxToolBarTool*, FindById(id));
+    wxToolBarTool* tool = static_cast<wxToolBarTool*>(FindById(id));
     if ( tool )
     {
         wxCHECK_RET( tool->IsButton(), wxT("Can only set bitmap on button tools."));
@@ -1492,7 +1522,7 @@ void wxToolBar::SetToolNormalBitmap( int id, const wxBitmap& bitmap )
 
 void wxToolBar::SetToolDisabledBitmap( int id, const wxBitmap& bitmap )
 {
-    wxToolBarTool* tool = wx_static_cast(wxToolBarTool*, FindById(id));
+    wxToolBarTool* tool = static_cast<wxToolBarTool*>(FindById(id));
     if ( tool )
     {
         wxCHECK_RET( tool->IsButton(), wxT("Can only set bitmap on button tools."));
@@ -1859,12 +1889,14 @@ WXLRESULT wxToolBar::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam
 
 #ifndef __WXWINCE__
         case WM_PAINT:
-            if ( HandlePaint(wParam, lParam) )
+            // refreshing the controls in the toolbar inside a composite window
+            // results in an endless stream of WM_PAINT messages -- and seems
+            // to be unnecessary anyhow as everything works just fine without
+            // any special workarounds in this case
+            if ( !IsDoubleBuffered() && HandlePaint(wParam, lParam) )
                 return 0;
-#endif
-
-        default:
             break;
+#endif // __WXWINCE__
     }
 
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);