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 = TRUE;
  27     SetBackground(*wxWHITE_BRUSH);
  28     SetBrush(*wxWHITE_BRUSH);
  29     SetPen(*wxBLACK_PEN);
  30   m_ok = FALSE;
  31 };
  32
  33 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  34 {
  35  m_ok = TRUE;
  36     SetBackground(*wxWHITE_BRUSH);
  37     SetBrush(*wxWHITE_BRUSH);
  38     SetPen(*wxBLACK_PEN);
  39   m_ok = FALSE;
  40 };
  41
  42 wxMemoryDC::~wxMemoryDC()
  43 {
  44         if ( m_selected.Ok() )
  45         {
  46                 UnlockPixels( GetGWorldPixMap(m_selected.GetHBITMAP()) );
  47         }
  48 };
  49
  50 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  51 {
  52         if ( m_selected.Ok() )
  53         {
  54                 UnlockPixels( GetGWorldPixMap(m_selected.GetHBITMAP()) );
  55         }
  56     m_selected = bitmap;
  57     if (m_selected.Ok())
  58     {
  59                 if ( m_selected.GetHBITMAP() )
  60                 {
  61                         m_macPort = (GrafPtr) m_selected.GetHBITMAP() ;
  62                         LockPixels( GetGWorldPixMap(  (CGrafPtr)  m_macPort ) ) ;
  63                         wxMask * mask = bitmap.GetMask() ;
  64                         if ( mask )
  65                         {
  66                                 m_macMask = mask->GetMaskBitmap() ;
  67                         }
  68                         m_ok = TRUE ;
  69                 }
  70                 else
  71                 {
  72                 m_ok = FALSE;
  73                 }
  74   }
  75   else
  76   {
  77     m_ok = FALSE;
  78   }
  79 }
  80
  81 void wxMemoryDC::DoGetSize( int *width, int *height ) const
  82 {
  83   if (m_selected.Ok())
  84   {
  85     if (width) (*width) = m_selected.GetWidth();
  86     if (height) (*height) = m_selected.GetHeight();
  87   }
  88   else
  89   {
  90     if (width) (*width) = 0;
  91     if (height) (*height) = 0;
  92   }
  93 }
  94
  95