added container class source

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

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 3adeae2cb4a2f40099f74757021bedf12b638efd..72d8437e63cf690832c1acdc218c5fd79db1c2b0 100644 (file)
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -115,7 +115,8 @@
     #define _WIN32_IE 0x0200
 #endif
 
-#if _WIN32_IE >= 0x0300
+#if _WIN32_IE >= 0x0300 \
+    && !( defined(__MINGW32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
     #include <shlwapi.h>
 #endif
 
@@ -1046,13 +1047,29 @@ 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 ( ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
+        {
+            hwnd = ::GetParent(hwnd);
+        }
+
+        return ::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 )
@@ -1062,25 +1079,39 @@ 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;
 }
 
@@ -1111,6 +1142,14 @@ void wxApp::OnIdle(wxIdleEvent& event)
     wxLog::FlushActive();
 #endif // wxUSE_LOG
 
+#if wxUSE_DC_CACHEING
+    // 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))
+        wxDC::ClearCache();
+#endif // wxUSE_DC_CACHEING
+
     // Send OnIdle events to all windows
     if ( SendIdleEvents() )
     {