src/mac/carbon/dcmemory.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcmemory.cpp
   3 // Purpose:     wxMemoryDC class
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "dcmemory.h"
  14 #endif
  15
  16 #include "wx/dcmemory.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // wxMemoryDC
  20 //-----------------------------------------------------------------------------
  21
  22 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
  23
  24 wxMemoryDC::wxMemoryDC(void)
  25 {
  26   m_ok = FALSE;
  27 };
  28
  29 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  30 {
  31   m_ok = FALSE;
  32 };
  33
  34 wxMemoryDC::~wxMemoryDC(void)
  35 {
  36         if ( m_selected.Ok() )
  37         {
  38                 wxBitmapRefData * bmap = (wxBitmapRefData*) (m_selected.GetRefData()) ;
  39                 UnlockPixels( GetGWorldPixMap(  (CGrafPtr) bmap->m_hBitmap ) ) ;
  40         }
  41 };
  42
  43 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  44 {
  45         if ( m_selected.Ok() )
  46         {
  47                 wxBitmapRefData * bmap = (wxBitmapRefData*) (m_selected.GetRefData()) ;
  48                 UnlockPixels( GetGWorldPixMap(  (CGrafPtr) bmap->m_hBitmap ) ) ;
  49         }
  50   m_selected = bitmap;
  51   if (m_selected.Ok())
  52   {
  53                 wxBitmapRefData * bmap = (wxBitmapRefData*) (m_selected.GetRefData()) ;
  54                 if ( bmap->m_hBitmap )
  55                 {
  56                         m_macPort = (GrafPtr) bmap->m_hBitmap ;
  57                         LockPixels( GetGWorldPixMap(  (CGrafPtr)  m_macPort ) ) ;
  58                         wxMask * mask = bitmap.GetMask() ;
  59                         if ( mask )
  60                         {
  61                                 m_macMask = mask->GetMaskBitmap() ;
  62                         }
  63                         MacSetupPort() ;
  64                         m_ok = TRUE ;
  65                         // SetBackground(wxBrush(*wxWHITE, wxSOLID));
  66                 }
  67                 else
  68                 {
  69             m_ok = FALSE;
  70                 }
  71   }
  72   else
  73   {
  74     m_ok = FALSE;
  75   };
  76 };
  77
  78 void wxMemoryDC::GetSize( int *width, int *height ) const
  79 {
  80   if (m_selected.Ok())
  81   {
  82     if (width) (*width) = m_selected.GetWidth();
  83     if (height) (*height) = m_selected.GetHeight();
  84   }
  85   else
  86   {
  87     if (width) (*width) = 0;
  88     if (height) (*height) = 0;
  89   };
  90 };
  91
  92