From 2ab38025228005fd3d5b43b641c825806ac9abbc Mon Sep 17 00:00:00 2001
From: Stefan Csomor <csomor@advancedconcepts.ch>
Date: Thu, 8 Nov 2012 15:46:23 +0000
Subject: [PATCH] support for freeze and thaw under cocoa

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72924 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/osx/cocoa/private.h |  2 ++
 include/wx/osx/core/private.h  |  2 ++
 src/osx/carbon/window.cpp      | 10 +++++++++-
 src/osx/cocoa/window.mm        | 12 ++++++++++++
 src/osx/window_osx.cpp         | 14 +++++++-------
 5 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/include/wx/osx/cocoa/private.h b/include/wx/osx/cocoa/private.h
index d24e39a1ed..b8e0f19ddc 100644
--- a/include/wx/osx/cocoa/private.h
+++ b/include/wx/osx/cocoa/private.h
@@ -89,6 +89,8 @@ public :
     virtual void        SetNeedsDisplay( const wxRect* where = NULL );
     virtual bool        GetNeedsDisplay() const;
 
+    virtual void        SetDrawingEnabled(bool enabled);
+
     virtual bool        CanFocus() const;
     // return true if successful
     virtual bool        SetFocus();
diff --git a/include/wx/osx/core/private.h b/include/wx/osx/core/private.h
index 9961aaab05..517ddf61e6 100644
--- a/include/wx/osx/core/private.h
+++ b/include/wx/osx/core/private.h
@@ -282,6 +282,8 @@ public :
 
     virtual bool        NeedsFrame() const;
     virtual void        SetNeedsFrame( bool needs );
+    
+    virtual void        SetDrawingEnabled(bool enabled);
 
     virtual bool        CanFocus() const = 0;
     // return true if successful
diff --git a/src/osx/carbon/window.cpp b/src/osx/carbon/window.cpp
index 2b9bb62a73..94c95ef5cf 100644
--- a/src/osx/carbon/window.cpp
+++ b/src/osx/carbon/window.cpp
@@ -1404,7 +1404,15 @@ void wxMacControl::Enable( bool enable )
 
 void wxMacControl::SetDrawingEnabled( bool enable )
 {
-    HIViewSetDrawingEnabled( m_controlRef , enable );
+    if ( enable )
+    {
+        HIViewSetDrawingEnabled( m_controlRef , true );
+        HIViewSetNeedsDisplay( m_controlRef, true);
+    }
+    else
+    {
+        HIViewSetDrawingEnabled( m_controlRef , false );
+    }
 }
 
 void wxMacControl::GetRectInWindowCoords( Rect *r )
diff --git a/src/osx/cocoa/window.mm b/src/osx/cocoa/window.mm
index 7b30bf644f..3cf01f4de0 100644
--- a/src/osx/cocoa/window.mm
+++ b/src/osx/cocoa/window.mm
@@ -2586,6 +2586,18 @@ void wxWidgetCocoaImpl::SetFlipped(bool flipped)
     m_isFlipped = flipped;
 }
 
+void wxWidgetCocoaImpl::SetDrawingEnabled(bool enabled)
+{
+    if ( enabled )
+    {
+        [[m_osxView window] enableFlushWindow];
+        [m_osxView setNeedsDisplay:YES];
+    }
+    else
+    {
+        [[m_osxView window] disableFlushWindow];
+    }
+}
 //
 // Factory methods
 //
diff --git a/src/osx/window_osx.cpp b/src/osx/window_osx.cpp
index bb67d1afb3..6fe7e14929 100644
--- a/src/osx/window_osx.cpp
+++ b/src/osx/window_osx.cpp
@@ -1362,27 +1362,23 @@ void wxWindowMac::Refresh(bool WXUNUSED(eraseBack), const wxRect *rect)
 
     if ( !IsShownOnScreen() )
         return ;
+    
+    if ( IsFrozen() )
+        return;
 
     GetPeer()->SetNeedsDisplay( rect ) ;
 }
 
 void wxWindowMac::DoFreeze()
 {
-#if wxOSX_USE_CARBON
     if ( GetPeer() && GetPeer()->IsOk() )
         GetPeer()->SetDrawingEnabled( false ) ;
-#endif
 }
 
 void wxWindowMac::DoThaw()
 {
-#if wxOSX_USE_CARBON
     if ( GetPeer() && GetPeer()->IsOk() )
-    {
         GetPeer()->SetDrawingEnabled( true ) ;
-        GetPeer()->InvalidateWithChildren() ;
-    }
-#endif
 }
 
 wxWindow *wxGetActiveWindow()
@@ -2854,3 +2850,7 @@ bool wxWidgetImpl::NeedsFrame() const
 {
     return m_needsFrame;
 }
+
+void wxWidgetImpl::SetDrawingEnabled(bool WXUNUSED(enabled))
+{
+}
\ No newline at end of file
-- 
2.45.2