Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / gtk / dcmemory.cpp

diff --git a/src/gtk/dcmemory.cpp b/src/gtk/dcmemory.cpp
index 2a0d2687cbb66880cb396e90fe842046b26f1fa7..05009c9e59511ace6f4b7e95bfb518b65310ccf6 100644 (file)
--- a/src/gtk/dcmemory.cpp
+++ b/src/gtk/dcmemory.cpp
@@ -2,7 +2,6 @@
 // Name:        src/gtk/dcmemory.cpp
 // Purpose:
 // Author:      Robert Roebling
-// RCS-ID:      $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -10,10 +9,8 @@
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
-#include "wx/dcmemory.h"
 #include "wx/gtk/dcmemory.h"
 
-#include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
@@ -22,17 +19,17 @@
 
 IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxWindowDCImpl)
 
-wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner ) 
+wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner )
   : wxWindowDCImpl( owner )
-{ 
-    Init(); 
+{
+    Init();
 }
 
-wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap) 
+wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap)
   : wxWindowDCImpl( owner )
-{ 
-    Init(); 
-    owner->SelectObject(bitmap); 
+{
+    Init();
+    DoSelect(bitmap);
 }
 
 wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC *WXUNUSED(dc) )
@@ -65,7 +62,7 @@ void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
     Destroy();
 
     m_selected = bitmap;
-    if (m_selected.Ok())
+    if (m_selected.IsOk())
     {
         m_gdkwindow = m_selected.GetPixmap();
 
@@ -76,14 +73,14 @@ void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
     else
     {
         m_ok = false;
-        m_gdkwindow = (GdkWindow *) NULL;
+        m_gdkwindow = NULL;
     }
 }
 
 void wxMemoryDCImpl::SetPen( const wxPen& penOrig )
 {
     wxPen pen( penOrig );
-    if ( m_selected.Ok() &&
+    if ( m_selected.IsOk() &&
             m_selected.GetDepth() == 1 &&
                 (pen != *wxTRANSPARENT_PEN) )
     {
@@ -96,7 +93,7 @@ void wxMemoryDCImpl::SetPen( const wxPen& penOrig )
 void wxMemoryDCImpl::SetBrush( const wxBrush& brushOrig )
 {
     wxBrush brush( brushOrig );
-    if ( m_selected.Ok() &&
+    if ( m_selected.IsOk() &&
             m_selected.GetDepth() == 1 &&
                 (brush != *wxTRANSPARENT_BRUSH) )
     {
@@ -110,7 +107,7 @@ void wxMemoryDCImpl::SetBackground( const wxBrush& brushOrig )
 {
     wxBrush brush(brushOrig);
 
-    if ( m_selected.Ok() &&
+    if ( m_selected.IsOk() &&
             m_selected.GetDepth() == 1 &&
                 (brush != *wxTRANSPARENT_BRUSH) )
     {
@@ -122,7 +119,7 @@ void wxMemoryDCImpl::SetBackground( const wxBrush& brushOrig )
 
 void wxMemoryDCImpl::SetTextForeground( const wxColour& col )
 {
-    if ( m_selected.Ok() && m_selected.GetDepth() == 1 )
+    if ( m_selected.IsOk() && m_selected.GetDepth() == 1 )
         wxWindowDCImpl::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE);
     else
         wxWindowDCImpl::SetTextForeground( col );
@@ -130,7 +127,7 @@ void wxMemoryDCImpl::SetTextForeground( const wxColour& col )
 
 void wxMemoryDCImpl::SetTextBackground( const wxColour &col )
 {
-    if (m_selected.Ok() && m_selected.GetDepth() == 1)
+    if (m_selected.IsOk() && m_selected.GetDepth() == 1)
         wxWindowDCImpl::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE );
     else
         wxWindowDCImpl::SetTextBackground( col );
@@ -138,7 +135,7 @@ void wxMemoryDCImpl::SetTextBackground( const wxColour &col )
 
 void wxMemoryDCImpl::DoGetSize( int *width, int *height ) const
 {
-    if (m_selected.Ok())
+    if (m_selected.IsOk())
     {
         if (width) (*width) = m_selected.GetWidth();
         if (height) (*height) = m_selected.GetHeight();
@@ -166,3 +163,8 @@ wxBitmap& wxMemoryDCImpl::GetSelectedBitmap()
     return m_selected;
 }
 
+void* wxMemoryDCImpl::GetHandle() const
+{
+    const wxBitmap& bmp = GetSelectedBitmap();
+    return bmp.GetPixmap();
+}