src/x11/dcscreen.cpp

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