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