src/x11/dcscreen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/x11/dcscreen.cpp
   3 // Purpose:     wxScreenDC class
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // for compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/dcscreen.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/app.h"
  19     #include "wx/utils.h"
  20     #include "wx/window.h"
  21     #include "wx/frame.h"
  22 #endif
  23
  24 #include "wx/fontutil.h"
  25
  26 #include "wx/x11/private.h"
  27
  28 //-----------------------------------------------------------------------------
  29 // global data initialization
  30 //-----------------------------------------------------------------------------
  31
  32 WXWindow *wxScreenDC::sm_overlayWindow  = (WXWindow*) NULL;
  33 int wxScreenDC::sm_overlayWindowX = 0;
  34 int wxScreenDC::sm_overlayWindowY = 0;
  35
  36 //-----------------------------------------------------------------------------
  37 // wxScreenDC
  38 //-----------------------------------------------------------------------------
  39
  40 IMPLEMENT_DYNAMIC_CLASS(wxScreenDC,wxPaintDC)
  41
  42 wxScreenDC::wxScreenDC()
  43 {
  44     m_ok = false;
  45
  46     m_display = (WXDisplay *) wxGlobalDisplay();
  47
  48     int screen = DefaultScreen( (Display*) m_display );
  49     m_cmap = (WXColormap) DefaultColormap( (Display*) m_display, screen );
  50
  51     m_window = (WXWindow) RootWindow( (Display*) m_display, screen );
  52
  53     m_isScreenDC = true;
  54
  55 #if wxUSE_UNICODE
  56     m_context = wxTheApp->GetPangoContext();
  57     m_fontdesc = wxNORMAL_FONT->GetNativeFontInfo()->description;
  58 #endif
  59
  60     SetUpDC();
  61
  62     XSetSubwindowMode( (Display*) m_display, (GC) m_penGC, IncludeInferiors );
  63     XSetSubwindowMode( (Display*) m_display, (GC) m_brushGC, IncludeInferiors );
  64     XSetSubwindowMode( (Display*) m_display, (GC) m_textGC, IncludeInferiors );
  65     XSetSubwindowMode( (Display*) m_display, (GC) m_bgGC, IncludeInferiors );
  66 }
  67
  68 wxScreenDC::~wxScreenDC()
  69 {
  70     XSetSubwindowMode( (Display*) m_display, (GC) m_penGC, ClipByChildren );
  71     XSetSubwindowMode( (Display*) m_display, (GC) m_brushGC, ClipByChildren );
  72     XSetSubwindowMode( (Display*) m_display, (GC) m_textGC, ClipByChildren );
  73     XSetSubwindowMode( (Display*) m_display, (GC) m_bgGC, ClipByChildren );
  74
  75     EndDrawingOnTop();
  76 }
  77
  78 bool wxScreenDC::StartDrawingOnTop( wxWindow *window )
  79 {
  80     if (!window) return StartDrawingOnTop();
  81
  82     int x = 0;
  83     int y = 0;
  84     window->GetPosition( &x, &y );
  85     int w = 0;
  86     int h = 0;
  87     window->GetSize( &w, &h );
  88     window->ClientToScreen( &x, &y );
  89
  90     wxRect rect;
  91     rect.x = x;
  92     rect.y = y;
  93     rect.width = 0;
  94     rect.height = 0;
  95
  96     return StartDrawingOnTop( &rect );
  97 }
  98
  99 bool wxScreenDC::StartDrawingOnTop( wxRect *rectIn )
 100 {
 101     // VZ: should we do the same thing that wxMotif wxScreenDC does here?
 102 #if 0
 103     wxRect rect;
 104     if ( rectIn )
 105     {
 106         rect = *rectIn;
 107     }
 108     else
 109     {
 110         rect.x =
 111         rect.y = 0;
 112
 113         DoGetSize(&rect.width, &rect.height);
 114     }
 115 #endif // 0
 116
 117     return true;
 118 }
 119
 120 bool wxScreenDC::EndDrawingOnTop()
 121 {
 122     return true;
 123 }
 124
 125 void wxScreenDC::DoGetSize(int *width, int *height) const
 126 {
 127     wxDisplaySize(width, height);
 128 }