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 #include <gdk/gdk.h>
  17 #include <gtk/gtk.h>
  18
  19 //-----------------------------------------------------------------------------
  20 // wxMemoryDC
  21 //-----------------------------------------------------------------------------
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC)
  24
  25 wxMemoryDC::wxMemoryDC() : wxWindowDC()
  26 {
  27     m_ok = FALSE;
  28
  29     m_cmap = gtk_widget_get_default_colormap();
  30 }
  31
  32 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  33   : wxWindowDC()
  34 {
  35     m_ok = FALSE;
  36
  37     m_cmap = gtk_widget_get_default_colormap();
  38 }
  39
  40 wxMemoryDC::~wxMemoryDC()
  41 {
  42 }
  43
  44 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  45 {
  46     m_selected = bitmap;
  47     if (m_selected.Ok())
  48     {
  49         if (m_selected.GetPixmap())
  50         {
  51             m_window = m_selected.GetPixmap();
  52         }
  53         else
  54         {
  55             m_window = m_selected.GetBitmap();
  56         }
  57
  58         SetUpDC();
  59
  60         m_isMemDC = TRUE;
  61     }
  62     else
  63     {
  64         m_ok = FALSE;
  65         m_window = (GdkWindow *) NULL;
  66     }
  67 }
  68
  69 void wxMemoryDC::DoGetSize( int *width, int *height ) const
  70 {
  71     if (m_selected.Ok())
  72     {
  73         if (width) (*width) = m_selected.GetWidth();
  74         if (height) (*height) = m_selected.GetHeight();
  75     }
  76     else
  77     {
  78         if (width) (*width) = 0;
  79         if (height) (*height) = 0;
  80     }
  81 }
  82
  83