src/gtk/dcmemory.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcmemory.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "dcmemory.h"
  12 #endif
  13
  14 #include "wx/dcmemory.h"
  15
  16 //-----------------------------------------------------------------------------
  17 // wxMemoryDC
  18 //-----------------------------------------------------------------------------
  19
  20 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC)
  21
  22 wxMemoryDC::wxMemoryDC() : wxWindowDC()
  23 {
  24     m_ok = FALSE;
  25
  26     m_cmap = gtk_widget_get_default_colormap();
  27 }
  28
  29 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  30   : wxWindowDC()
  31 {
  32     m_ok = FALSE;
  33
  34     m_cmap = gtk_widget_get_default_colormap();
  35 }
  36
  37 wxMemoryDC::~wxMemoryDC()
  38 {
  39 }
  40
  41 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  42 {
  43     m_selected = bitmap;
  44     if (m_selected.Ok())
  45     {
  46         if (m_selected.GetPixmap())
  47         {
  48             m_window = m_selected.GetPixmap();
  49         }
  50         else
  51         {
  52             m_window = m_selected.GetBitmap();
  53         }
  54
  55         SetUpDC();
  56
  57         m_isMemDC = TRUE;
  58     }
  59     else
  60     {
  61         m_ok = FALSE;
  62         m_window = (GdkWindow *) NULL;
  63     }
  64 }
  65
  66 void wxMemoryDC::GetSize( int *width, int *height ) const
  67 {
  68     if (m_selected.Ok())
  69     {
  70         if (width) (*width) = m_selected.GetWidth();
  71         if (height) (*height) = m_selected.GetHeight();
  72     }
  73     else
  74     {
  75         if (width) (*width) = 0;
  76         if (height) (*height) = 0;
  77     }
  78 }
  79
  80