Patch from Hartwig for wxMac implementation

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

diff --git a/src/mac/carbon/dcmemory.cpp b/src/mac/carbon/dcmemory.cpp
index 28a652368a97e41c1058b70f1469f67367563a3d..f30ed64d0f845427894cd111799bff616a0c64bf 100644 (file)
--- a/src/mac/carbon/dcmemory.cpp
+++ b/src/mac/carbon/dcmemory.cpp
@@ -1,19 +1,20 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        dcmemory.cpp
+// Name:        src/mac/carbon/dcmemory.cpp

 // Purpose:     wxMemoryDC class
 // Purpose:     wxMemoryDC class

-// Author:      AUTHOR
+// Author:      Stefan Csomor

 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "dcmemory.h"
-#endif
+#include "wx/wxprec.h"

 
 #include "wx/dcmemory.h"
 
 #include "wx/dcmemory.h"

+#include "wx/graphics.h"
+
+#include "wx/mac/private.h"

 
 //-----------------------------------------------------------------------------
 // wxMemoryDC
 
 //-----------------------------------------------------------------------------
 // wxMemoryDC


@@ -21,56 +22,118 @@
 
 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
 

-wxMemoryDC::wxMemoryDC(void)
+void wxMemoryDC::Init()

 {
 {

-  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) )
 
 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )

+: m_selected()

 {
 {

-  m_ok = FALSE;
-};
+    Init();
+}

 
 

-wxMemoryDC::~wxMemoryDC(void)
+wxMemoryDC::~wxMemoryDC()

 {
 {

-};
+    if ( m_selected.Ok() )
+    {
+#if wxMAC_USE_CORE_GRAPHICS
+        m_selected.EndRawAccess() ;
+        CGContextRef bmCtx = (CGContextRef) 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;
-  };
-};
-
-void wxMemoryDC::GetSize( int *width, int *height ) const
+void wxMemoryDC::DoSelect( const wxBitmap& bitmap )

 {
 {

-  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 wxMAC_USE_CORE_GRAPHICS
+        m_selected.EndRawAccess() ;
+        CGContextRef bmCtx = (CGContextRef) 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
+        if ( m_selected.GetDepth() != 1 )
+            m_selected.UseAlpha() ;
+        void * data = m_selected.BeginRawAccess() ;
+
+        int bitsPerComp = 8 ;
+        int bytesPerPixel = 4 ;
+        int w = bitmap.GetWidth() ;
+        int h = bitmap.GetHeight() ;
+               m_width = w;
+               m_height = h;

 
 

+        // TODO: should this be kCGImageAlphaPremultiplied[First,Last] ?
+        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") ) ;
+
+        if ( bmCtx )
+        {
+            CGContextSetFillColorSpace( bmCtx, genericColorSpace );
+            CGContextSetStrokeColorSpace( bmCtx, genericColorSpace );
+
+            CGContextTranslateCTM( bmCtx , 0 ,  m_selected.GetHeight() ) ;
+            CGContextScaleCTM( bmCtx , 1 , -1 ) ;
+
+                       SetGraphicsContext( wxGraphicsContext::CreateFromNative( bmCtx ) );
+        }
+        m_ok = (m_graphicContext != NULL) ;
+
+#else
+        m_macPort = m_selected.GetHBITMAP( &m_macMask ) ;
+        m_ok = (m_macPort != NULL) ;
+        if (m_ok)
+        {
+            LockPixels( GetGWorldPixMap( (CGrafPtr) m_macPort ) ) ;
+            SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , 0 , 0 , m_selected.GetWidth() , m_selected.GetHeight() ) ;
+            CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
+        }
+#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;
+    }
+}