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(void) : 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(void)
  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