made Freeze/Thaw recursively (un)freeze child windows too

[wxWidgets.git] / src / generic / dragimgg.cpp

diff --git a/src/generic/dragimgg.cpp b/src/generic/dragimgg.cpp
index 31c91dc092fd85309ceaeb5972cd4b9b4f0d1cc4..2cb2ed6130d6d3363535cc4deaa2125c8ecb2148 100644 (file)
--- a/src/generic/dragimgg.cpp
+++ b/src/generic/dragimgg.cpp
@@ -21,30 +21,26 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #if wxUSE_DRAGIMAGE
 
 #ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/window.h"
-#include "wx/frame.h"
-#include "wx/dcclient.h"
-#include "wx/dcscreen.h"
-#include "wx/dcmemory.h"
-#include "wx/settings.h"
+    #include <stdio.h>
+    #include "wx/window.h"
+    #include "wx/frame.h"
+    #include "wx/dcclient.h"
+    #include "wx/dcscreen.h"
+    #include "wx/dcmemory.h"
+    #include "wx/settings.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/image.h"
 #endif
 
-#include "wx/log.h"
-#include "wx/intl.h"
-
 #define wxUSE_IMAGE_IN_DRAGIMAGE 1
 
-#if wxUSE_IMAGE_IN_DRAGIMAGE
-#include "wx/image.h"
-#endif
-
 #include "wx/generic/dragimgg.h"
 
 // ----------------------------------------------------------------------------
@@ -76,7 +72,11 @@ void wxGenericDragImage::Init()
     m_windowDC = (wxDC*) NULL;
     m_window = (wxWindow*) NULL;
     m_fullScreen = false;
+#ifdef wxHAS_NATIVE_OVERLAY
+    m_dcOverlay = NULL;
+#else
     m_pBackingBitmap = (wxBitmap*) NULL;
+#endif
 }
 
 #if WXWIN_COMPATIBILITY_2_6
@@ -172,7 +172,7 @@ bool wxGenericDragImage::Create(const wxString& str, const wxCursor& cursor)
 {
     wxFont font(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
-    long w = 0, h = 0;
+    wxCoord w = 0, h = 0;
     wxScreenDC dc;
     dc.SetFont(font);
     dc.GetTextExtent(str, & w, & h);
@@ -236,7 +236,7 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
                                    bool fullScreen,
                                    wxRect* rect)
 {
-    wxASSERT_MSG( (window != 0), wxT("Window must not be null in BeginDrag."));
+    wxCHECK_MSG( window, false, wxT("Window must not be null in BeginDrag."));
 
     // The image should be offset by this amount
     m_offset = hotspot;
@@ -249,17 +249,14 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
     m_isDirty = false;
     m_isDirty = false;
 
-    if (window)
+    if (m_cursor.Ok())
     {
-        window->CaptureMouse();
-
-        if (m_cursor.Ok())
-        {
-            m_oldCursor = window->GetCursor();
-            window->SetCursor(m_cursor);
-        }
+        m_oldCursor = window->GetCursor();
+        window->SetCursor(m_cursor);
     }
 
+    window->CaptureMouse();
+
     // Make a copy of the window so we can repair damage done as the image is
     // dragged.
 
@@ -288,10 +285,12 @@ bool wxGenericDragImage::BeginDrag(const wxPoint& hotspot,
         }
     }
 
+#ifndef wxHAS_NATIVE_OVERLAY
     wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
 
     if (!backing->Ok() || (backing->GetWidth() < clientSize.x || backing->GetHeight() < clientSize.y))
         (*backing) = wxBitmap(clientSize.x, clientSize.y);
+#endif // !wxHAS_NATIVE_OVERLAY
 
     if (!m_fullScreen)
     {
@@ -354,12 +353,18 @@ bool wxGenericDragImage::EndDrag()
 
     if (m_windowDC)
     {
+#ifdef wxHAS_NATIVE_OVERLAY
+        m_overlay.Reset();
+#else
         m_windowDC->DestroyClippingRegion();
+#endif
         delete m_windowDC;
         m_windowDC = (wxDC*) NULL;
     }
 
+#ifndef wxHAS_NATIVE_OVERLAY
     m_repairBitmap = wxNullBitmap;
+#endif
 
     return true;
 }
@@ -401,6 +406,7 @@ bool wxGenericDragImage::Show()
         // This is where we restore the backing bitmap, in case
         // something has changed on the window.
 
+#ifndef wxHAS_NATIVE_OVERLAY
         wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
         wxMemoryDC memDC;
         memDC.SelectObject(* backing);
@@ -409,6 +415,7 @@ bool wxGenericDragImage::Show()
 
         //memDC.Blit(0, 0, m_boundingRect.width, m_boundingRect.height, m_windowDC, m_boundingRect.x, m_boundingRect.y);
         memDC.SelectObject(wxNullBitmap);
+#endif // !wxHAS_NATIVE_OVERLAY
 
         RedrawImage(m_position - m_offset, m_position - m_offset, false, true);
     }
@@ -444,12 +451,22 @@ bool wxGenericDragImage::Hide()
 }
 
 // More efficient: erase and redraw simultaneously if possible
-bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPos,
+bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos,
+                                     const wxPoint& newPos,
                                      bool eraseOld, bool drawNew)
 {
     if (!m_windowDC)
         return false;
 
+#ifdef wxHAS_NATIVE_OVERLAY
+    wxUnusedVar(oldPos);
+
+    wxDCOverlay dcoverlay( m_overlay, (wxWindowDC*) m_windowDC ) ;
+    if ( eraseOld )
+        dcoverlay.Clear() ;
+    if (drawNew)
+        DoDrawImage(*m_windowDC, newPos);
+#else // !wxHAS_NATIVE_OVERLAY
     wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
     if (!backing->Ok())
         return false;
@@ -515,6 +532,7 @@ bool wxGenericDragImage::RedrawImage(const wxPoint& oldPos, const wxPoint& newPo
 
     memDCTemp.SelectObject(wxNullBitmap);
     memDC.SelectObject(wxNullBitmap);
+#endif // wxHAS_NATIVE_OVERLAY/!wxHAS_NATIVE_OVERLAY
 
     return true;
 }