Fixed cache-related bug in DoBlit.

[wxWidgets.git] / src / msw / app.cpp

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 7c9aa3741f93799b8a4027bf12e426c1f1377c4b..7297d4c352cb689a5781b316029f7d6e5ab305fd 100644 (file)
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -455,6 +455,96 @@ bool wxApp::RegisterWindowClasses()
     return TRUE;
 }
 
+// ---------------------------------------------------------------------------
+// UnregisterWindowClasses
+// ---------------------------------------------------------------------------
+
+bool wxApp::UnregisterWindowClasses()
+{
+    bool retval = TRUE;
+
+    // frame window class.
+    if ( !UnregisterClass(wxFrameClassName, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(frame)"));
+
+        retval = FALSE;
+    }
+
+    // "no redraw" frame
+    if ( !UnregisterClass(wxFrameClassNameNoRedraw, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(no redraw frame)"));
+
+        return FALSE;
+    }
+
+    // MDI frame window class.
+    if ( !UnregisterClass(wxMDIFrameClassName, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(MDI parent)"));
+
+        retval = FALSE;
+    }
+
+    // "no redraw" MDI frame
+    if ( !UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
+
+        retval = FALSE;
+    }
+
+    // MDI child frame window class.
+    if ( !UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(MDI child)"));
+
+        retval = FALSE;
+    }
+
+    // "no redraw" MDI child frame
+    if ( !UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
+
+        retval = FALSE;
+    }
+
+    // panel window class.
+    if ( !UnregisterClass(wxPanelClassName, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(panel)"));
+
+        retval = FALSE;
+    }
+
+    // no redraw panel window class.
+    if ( !UnregisterClass(wxPanelClassNameNR, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(no redraw panel)"));
+
+        retval = FALSE;
+    }
+
+    // canvas and textsubwindow class name
+    if ( !UnregisterClass(wxCanvasClassName, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(canvas)"));
+
+        retval = FALSE;
+    }
+
+    if ( !UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
+    {
+        wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
+
+        retval = FALSE;
+    }
+
+    return retval;
+}
+
 // ---------------------------------------------------------------------------
 // Convert Windows to argc, argv style
 // ---------------------------------------------------------------------------
@@ -600,6 +690,14 @@ void wxApp::CleanUp()
     ::OleUninitialize();
 #endif
 
+#ifdef WXMAKINGDLL
+    // for an EXE the classes are unregistered when it terminates but DLL may
+    // be loaded several times (load/unload/load) into the same process in
+    // which case the registration will fail after the first time if we don't
+    // unregister the classes now
+    UnregisterWindowClasses();
+#endif // WXMAKINGDLL
+
 #if wxUSE_CTL3D
     Ctl3dUnregister(wxhInstance);
 #endif
@@ -1047,13 +1145,29 @@ void wxApp::Dispatch()
 bool wxApp::ProcessMessage(WXMSG *wxmsg)
 {
     MSG *msg = (MSG *)wxmsg;
-    HWND hWnd = msg->hwnd;
-    wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hWnd);
+    HWND hwnd = msg->hwnd;
+    wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
+
+    // this may happen if the event occured in a standard modeless dialog (the
+    // only example of which I know of is the find/replace dialog) - then call
+    // IsDialogMessage() to make TAB navigation in it work
+    if ( !wndThis )
+    {
+        // we need to find the dialog containing this control as
+        // IsDialogMessage() just eats all the messages (i.e. returns TRUE for
+        // them) if we call it for the control itself
+        while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
+        {
+            hwnd = ::GetParent(hwnd);
+        }
+
+        return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
+    }
 
 #if wxUSE_TOOLTIPS
     // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
     // popup the tooltip bubbles
-    if ( wndThis && (msg->message == WM_MOUSEMOVE) )
+    if ( (msg->message == WM_MOUSEMOVE) )
     {
         wxToolTip *tt = wndThis->GetToolTip();
         if ( tt )
@@ -1063,25 +1177,39 @@ bool wxApp::ProcessMessage(WXMSG *wxmsg)
     }
 #endif // wxUSE_TOOLTIPS
 
-    // Try translations first; find the youngest window with
-    // a translation table.
+    // allow the window to prevent certain messages from being
+    // translated/processed (this is currently used by wxTextCtrl to always
+    // grab Ctrl-C/V/X, even if they are also accelerators in some parent)
+    if ( !wndThis->MSWShouldPreProcessMessage(wxmsg) )
+    {
+        return FALSE;
+    }
+
+    // try translations first: the accelerators override everything
     wxWindow *wnd;
 
-    bool pastTopLevelWindow = FALSE;
     for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
     {
-        if ( !pastTopLevelWindow && wnd->MSWTranslateMessage(wxmsg))
-            return TRUE;
-        if ( wnd->MSWProcessMessage(wxmsg) )
+        if ( wnd->MSWTranslateMessage(wxmsg))
             return TRUE;
 
         // stop at first top level window, i.e. don't try to process the key
         // strokes originating in a dialog using the accelerators of the parent
         // frame - this doesn't make much sense
         if ( wnd->IsTopLevel() )
-            pastTopLevelWindow = TRUE;
+            break;
+    }
+
+    // now try the other hooks (kbd navigation is handled here): we start from
+    // wndThis->GetParent() because wndThis->MSWProcessMessage() was already
+    // called above
+    for ( wnd = wndThis->GetParent(); wnd; wnd = wnd->GetParent() )
+    {
+        if ( wnd->MSWProcessMessage(wxmsg) )
+            return TRUE;
     }
 
+    // no special preprocessing for this message, dispatch it normally
     return FALSE;
 }
 
@@ -1116,7 +1244,7 @@ void wxApp::OnIdle(wxIdleEvent& event)
     // automated DC cache management: clear the cached DCs and bitmap
     // if it's likely that the app has finished with them, that is, we
     // get an idle event and we're not dragging anything.
-    if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && ::GetKeyState(MK_RBUTTON))
+    if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
         wxDC::ClearCache();
 #endif // wxUSE_DC_CACHEING