adding a peer pointing back to wxWindow

[wxWidgets.git] / src / mac / carbon / dcmemory.cpp

diff --git a/src/mac/carbon/dcmemory.cpp b/src/mac/carbon/dcmemory.cpp
index 28a652368a97e41c1058b70f1469f67367563a3d..7fb6a99482959ffd02dab2aaeb6403cb63a4fb79 100644 (file)
--- a/src/mac/carbon/dcmemory.cpp
+++ b/src/mac/carbon/dcmemory.cpp
@@ -1,19 +1,22 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        dcmemory.cpp
 // Purpose:     wxMemoryDC class
-// Author:      AUTHOR
+// Author:      Stefan Csomor
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:       wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "dcmemory.h"
 #endif
 
+#include "wx/wxprec.h"
+
 #include "wx/dcmemory.h"
+#include "wx/mac/private.h"
 
 //-----------------------------------------------------------------------------
 // wxMemoryDC
@@ -22,55 +25,124 @@
 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
 
 wxMemoryDC::wxMemoryDC(void)
+: m_selected()
 {
-  m_ok = FALSE;
+    m_ok = TRUE;
+    SetBackground(*wxWHITE_BRUSH);
+    SetBrush(*wxWHITE_BRUSH);
+    SetPen(*wxBLACK_PEN);
+    SetFont(*wxNORMAL_FONT) ;
+    m_ok = FALSE;
 };
 
 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
+: m_selected()
 {
-  m_ok = FALSE;
+    m_ok = TRUE;
+    SetBackground(*wxWHITE_BRUSH);
+    SetBrush(*wxWHITE_BRUSH);
+    SetPen(*wxBLACK_PEN);
+    SetFont(*wxNORMAL_FONT) ;
+    m_ok = FALSE;
 };
 
-wxMemoryDC::~wxMemoryDC(void)
+wxMemoryDC::~wxMemoryDC()
 {
+    if ( m_selected.Ok() )
+    {
+#if wxMAC_USE_CORE_GRAPHICS
+        m_selected.EndRawAccess() ;
+        CGContextRef bmCtx = dynamic_cast<wxMacCGContext*>(m_graphicContext)->GetNativeContext() ;
+        delete m_graphicContext ;
+        m_graphicContext = NULL ;
+        CGContextRelease( bmCtx ) ;
+#else
+// TODO        UnlockPixels( GetGWorldPixMap(MAC_WXHBITMAP(m_selected.GetHBITMAP())) );
+#endif
+    }
 };
 
 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
 {
-  m_selected = bitmap;
-  if (m_selected.Ok())
-  {
-               wxBitmapRefData * bmap = (wxBitmapRefData*) (m_selected.GetRefData()) ;
-               if ( bmap->m_hBitmap )
-               {
-                       m_macPort = (GrafPtr) bmap->m_hBitmap ;
-                       MacSetupPort() ;
-                       m_ok = TRUE ;
-                       // SetBackground(wxBrush(*wxWHITE, wxSOLID));
-               }
-               else
-               {
-           m_ok = FALSE;
-               }
-  }
-  else
-  {
-    m_ok = FALSE;
-  };
-};
+    if ( m_selected.Ok() )
+    {
+#if wxMAC_USE_CORE_GRAPHICS
+        m_selected.EndRawAccess() ;
+        CGContextRef bmCtx = dynamic_cast<wxMacCGContext*>(m_graphicContext)->GetNativeContext() ;
+        delete m_graphicContext ;
+        m_graphicContext = NULL ;
+        CGContextRelease( bmCtx ) ;
+#else
+// TODO        UnlockPixels( GetGWorldPixMap(MAC_WXHBITMAP(m_selected.GetHBITMAP())) );
+#endif
+    }
+    m_selected = bitmap;
+    if (m_selected.Ok())
+    {
+#if wxMAC_USE_CORE_GRAPHICS
+        m_selected.UseAlpha() ;
+        void * data = m_selected.BeginRawAccess() ;
+
+        int bitsPerComp = 8 ;
+        int bytesPerPixel = 4 ;
+        int w = bitmap.GetWidth() ;
+        int h = bitmap.GetHeight() ;
+        CGImageAlphaInfo a = kCGImageAlphaNoneSkipFirst ; 
+        CGColorSpaceRef genericColorSpace  = wxMacGetGenericRGBColorSpace();
+        CGContextRef bmCtx = CGBitmapContextCreate(data , w, h, bitsPerComp , bytesPerPixel * w , genericColorSpace, a);
+        wxASSERT_MSG( bmCtx , wxT("Unable to create bitmap context") ) ;
+
+        CGContextSetFillColorSpace(bmCtx, genericColorSpace); 
+        CGContextSetStrokeColorSpace(bmCtx, genericColorSpace); 
 
-void wxMemoryDC::GetSize( int *width, int *height ) const
+        if( bmCtx )
+        {
+            CGContextTranslateCTM( bmCtx , 0 ,  m_selected.GetHeight() ) ;
+            CGContextScaleCTM( bmCtx , 1 , -1 ) ;
+            m_graphicContext = new wxMacCGContext( bmCtx ) ;  
+            m_graphicContext->SetPen( m_pen ) ;
+            m_graphicContext->SetBrush( m_brush ) ;     
+        }
+        m_ok = (m_graphicContext != NULL) ;  
+#else
+        if ( ( m_macPort = m_selected.GetHBITMAP( &m_macMask ) ) != NULL )
+        {
+            LockPixels( GetGWorldPixMap(  (CGrafPtr)  m_macPort ) ) ;
+            /*
+            wxMask * mask = bitmap.GetMask() ;
+            if ( mask )
+            {
+                m_macMask = mask->GetHBITMAP() ;
+            }
+            */
+            SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , 0 , 0 , m_selected.GetWidth() , m_selected.GetHeight() ) ;
+            CopyRgn( (RgnHandle) m_macBoundaryClipRgn ,(RgnHandle)  m_macCurrentClipRgn ) ;
+            m_ok = TRUE ;
+        }
+        else
+        {
+            m_ok = FALSE;
+        }
+#endif
+    }
+    else
+    {
+        m_ok = FALSE;
+    }
+}
+
+void wxMemoryDC::DoGetSize( int *width, int *height ) const
 {
-  if (m_selected.Ok())
-  {
-    if (width) (*width) = m_selected.GetWidth();
-    if (height) (*height) = m_selected.GetHeight();
-  }
-  else
-  {
-    if (width) (*width) = 0;
-    if (height) (*height) = 0;
-  };
-};
+    if (m_selected.Ok())
+    {
+        if (width) (*width) = m_selected.GetWidth();
+        if (height) (*height) = m_selected.GetHeight();
+    }
+    else
+    {
+        if (width) (*width) = 0;
+        if (height) (*height) = 0;
+    }
+}