X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6aca462878bbad1c83f9fc1241a23d2bbf8a8ecf..5c17f6d377e0de9be8677118b1889468c9142e29:/src/msw/mdi.cpp?ds=sidebyside

diff --git a/src/msw/mdi.cpp b/src/msw/mdi.cpp
index 4bbb0a2b56..5a3fcf83af 100644
--- a/src/msw/mdi.cpp
+++ b/src/msw/mdi.cpp
@@ -384,10 +384,14 @@ void wxMDIParentFrame::Cascade()
     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
 }
 
-// TODO: add a direction argument (hor/vert)
-void wxMDIParentFrame::Tile()
+void wxMDIParentFrame::Tile(wxOrientation orient)
 {
-    ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
+    wxASSERT_MSG( orient == wxHORIZONTAL || orient == wxVERTICAL,
+                  _T("invalid orientation value") );
+
+    ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE,
+                  orient == wxHORIZONTAL ? MDITILE_HORIZONTAL
+                                         : MDITILE_VERTICAL, 0);
 }
 
 void wxMDIParentFrame::ArrangeIcons()
@@ -486,9 +490,8 @@ WXLRESULT wxMDIParentFrame::MSWWindowProc(WXUINT message,
             break;
 
         case WM_SIZE:
-            // as we don't (usually) resize the MDI client to exactly fit the
-            // client area (we put it below the toolbar, above statusbar &c),
-            // we should not pass this one to DefFrameProc
+            // though we don't (usually) resize the MDI client to exactly fit the
+            // client area we need to pass this one to DefFrameProc to allow the children to show
             break;
     }
 
@@ -670,6 +673,7 @@ bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
 void wxMDIChildFrame::Init()
 {
     m_needsResize = true;
+    m_needsInitialShow = true;
 }
 
 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
@@ -681,7 +685,6 @@ bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
                              const wxString& name)
 {
   SetName(name);
-  wxWindowBase::Show(true); // MDI child frame starts off shown
 
   if ( id != wxID_ANY )
     m_windowId = id;
@@ -725,7 +728,7 @@ bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
   else
       mcs.cy = CW_USEDEFAULT;
 
-  DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_VISIBLE ;
+  DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN;
   if (style & wxMINIMIZE_BOX)
     msflags |= WS_MINIMIZEBOX;
   if (style & wxMAXIMIZE_BOX)
@@ -773,6 +776,12 @@ wxMDIChildFrame::~wxMDIChildFrame()
     MSWDestroyWindow();
 }
 
+bool wxMDIChildFrame::Show(bool show)
+{
+    m_needsInitialShow = false;
+    return wxFrame::Show(show);
+}
+
 // Set the client size (i.e. leave the calculation of borders etc.
 // to wxWidgets)
 void wxMDIChildFrame::DoSetClientSize(int width, int height)
@@ -811,7 +820,8 @@ void wxMDIChildFrame::DoSetClientSize(int width, int height)
 
   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 
-  wxSizeEvent event(wxSize(width, height), m_windowId);
+  wxSize size(width, height);
+  wxSizeEvent event(size, m_windowId);
   event.SetEventObject( this );
   GetEventHandler()->ProcessEvent(event);
 }
@@ -1303,6 +1313,16 @@ void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeF
 
 void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
 {
+    // wxMSW prior to 2.5.3 created MDI child frames as visible, which resulted
+    // in flicker e.g. when the frame contained controls with non-trivial
+    // layout. Since 2.5.3, the frame is created hidden as all other top level
+    // windows. In order to maintain backward compatibility, the frame is shown
+    // in OnIdle, unless Show(false) was called by the programmer before.
+    if ( m_needsInitialShow )
+    {
+        Show(true);
+    }
+
     // MDI child frames get their WM_SIZE when they're constructed but at this
     // moment they don't have any children yet so all child windows will be
     // positioned incorrectly when they are added later - to fix this, we