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 #include "wx/mac/private.h"
  18
  19 //-----------------------------------------------------------------------------
  20 // wxMemoryDC
  21 //-----------------------------------------------------------------------------
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxPaintDC)
  24
  25 wxMemoryDC::wxMemoryDC(void)
  26 {
  27   m_ok = TRUE;
  28     SetBackground(*wxWHITE_BRUSH);
  29     SetBrush(*wxWHITE_BRUSH);
  30     SetPen(*wxBLACK_PEN);
  31   m_ok = FALSE;
  32 };
  33
  34 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  35 {
  36  m_ok = TRUE;
  37     SetBackground(*wxWHITE_BRUSH);
  38     SetBrush(*wxWHITE_BRUSH);
  39     SetPen(*wxBLACK_PEN);
  40   m_ok = FALSE;
  41 };
  42
  43 wxMemoryDC::~wxMemoryDC()
  44 {
  45         if ( m_selected.Ok() )
  46         {
  47                 UnlockPixels( GetGWorldPixMap(MAC_WXHBITMAP(m_selected.GetHBITMAP())) );
  48         }
  49 };
  50
  51 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  52 {
  53         if ( m_selected.Ok() )
  54         {
  55                 UnlockPixels( GetGWorldPixMap(MAC_WXHBITMAP(m_selected.GetHBITMAP())) );
  56         }
  57     m_selected = bitmap;
  58     if (m_selected.Ok())
  59     {
  60                 if ( m_selected.GetHBITMAP() )
  61                 {
  62                         m_macPort = (GrafPtr) m_selected.GetHBITMAP() ;
  63                         LockPixels( GetGWorldPixMap(  (CGrafPtr)  m_macPort ) ) ;
  64                         wxMask * mask = bitmap.GetMask() ;
  65                         if ( mask )
  66                         {
  67                                 m_macMask = mask->GetMaskBitmap() ;
  68                         }
  69                         m_ok = TRUE ;
  70                 }
  71                 else
  72                 {
  73                 m_ok = FALSE;
  74                 }
  75   }
  76   else
  77   {
  78     m_ok = FALSE;
  79   }
  80 }
  81
  82 void wxMemoryDC::DoGetSize( int *width, int *height ) const
  83 {
  84   if (m_selected.Ok())
  85   {
  86     if (width) (*width) = m_selected.GetWidth();
  87     if (height) (*height) = m_selected.GetHeight();
  88   }
  89   else
  90   {
  91     if (width) (*width) = 0;
  92     if (height) (*height) = 0;
  93   }
  94 }
  95
  96