src/x11/dcmemory.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/dcmemory.cpp
   3 // Purpose:     wxMemoryDC class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/dcmemory.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/utils.h"
  19 #endif
  20
  21 #include "wx/settings.h"
  22
  23 #include "wx/x11/private.h"
  24
  25 IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC,wxWindowDC)
  26
  27 wxMemoryDC::wxMemoryDC() : wxWindowDC()
  28 {
  29     m_ok = false;
  30
  31     m_display = (WXDisplay *) wxGlobalDisplay();
  32
  33     int screen = DefaultScreen( wxGlobalDisplay() );
  34     m_cmap = (WXColormap) DefaultColormap( wxGlobalDisplay(), screen );
  35 }
  36
  37 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
  38   : wxWindowDC()
  39 {
  40     m_ok = false;
  41
  42     m_display = (WXDisplay *) wxGlobalDisplay();
  43
  44     int screen = DefaultScreen( wxGlobalDisplay() );
  45     m_cmap = (WXColormap) DefaultColormap( wxGlobalDisplay(), screen );
  46 }
  47
  48 wxMemoryDC::~wxMemoryDC()
  49 {
  50 }
  51
  52 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
  53 {
  54     Destroy();
  55
  56     m_selected = bitmap;
  57     if (m_selected.Ok())
  58     {
  59         if (m_selected.GetPixmap())
  60         {
  61             m_window = (WXWindow) m_selected.GetPixmap();
  62         }
  63         else
  64         {
  65             m_window = m_selected.GetBitmap();
  66         }
  67
  68         m_isMemDC = true;
  69
  70         SetUpDC();
  71     }
  72     else
  73     {
  74         m_ok = false;
  75         m_window = NULL;
  76     }
  77 }
  78
  79 void wxMemoryDC::DoGetSize( int *width, int *height ) const
  80 {
  81     if (m_selected.Ok())
  82     {
  83         if (width) (*width) = m_selected.GetWidth();
  84         if (height) (*height) = m_selected.GetHeight();
  85     }
  86     else
  87     {
  88         if (width) (*width) = 0;
  89         if (height) (*height) = 0;
  90     }
  91 }