src/gtk/dcscreen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcscreen.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "dcscreen.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/dcscreen.h"
  18 #include "wx/window.h"
  19
  20 #include <gdk/gdk.h>
  21 #include <gdk/gdkx.h>
  22 #include <gtk/gtk.h>
  23
  24 //-----------------------------------------------------------------------------
  25 // global data initialization
  26 //-----------------------------------------------------------------------------
  27
  28 GdkWindow *wxScreenDC::sm_overlayWindow  = (GdkWindow*) NULL;
  29 int wxScreenDC::sm_overlayWindowX = 0;
  30 int wxScreenDC::sm_overlayWindowY = 0;
  31
  32 //-----------------------------------------------------------------------------
  33 // wxScreenDC
  34 //-----------------------------------------------------------------------------
  35
  36 IMPLEMENT_DYNAMIC_CLASS(wxScreenDC,wxPaintDC)
  37
  38 wxScreenDC::wxScreenDC()
  39 {
  40     m_ok = FALSE;
  41     m_cmap = gdk_colormap_get_system();
  42     m_window = GDK_ROOT_PARENT();
  43
  44     m_isScreenDC = TRUE;
  45
  46     SetUpDC();
  47
  48     gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
  49     gdk_gc_set_subwindow( m_brushGC, GDK_INCLUDE_INFERIORS );
  50     gdk_gc_set_subwindow( m_textGC, GDK_INCLUDE_INFERIORS );
  51     gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS );
  52 }
  53
  54 wxScreenDC::~wxScreenDC()
  55 {
  56     gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
  57     gdk_gc_set_subwindow( m_brushGC, GDK_CLIP_BY_CHILDREN );
  58     gdk_gc_set_subwindow( m_textGC, GDK_CLIP_BY_CHILDREN );
  59     gdk_gc_set_subwindow( m_bgGC, GDK_CLIP_BY_CHILDREN );
  60
  61     EndDrawingOnTop();
  62 }
  63
  64 bool wxScreenDC::StartDrawingOnTop( wxWindow *window )
  65 {
  66     if (!window) return StartDrawingOnTop();
  67
  68     int x = 0;
  69     int y = 0;
  70     window->GetPosition( &x, &y );
  71     int w = 0;
  72     int h = 0;
  73     window->GetSize( &w, &h );
  74     window->ClientToScreen( &x, &y );
  75
  76     wxRect rect;
  77     rect.x = x;
  78     rect.y = y;
  79     rect.width = 0;
  80     rect.height = 0;
  81
  82     return StartDrawingOnTop( &rect );
  83 }
  84
  85 bool wxScreenDC::StartDrawingOnTop( wxRect *rect )
  86 {
  87     int x = 0;
  88     int y = 0;
  89     int width = gdk_screen_width();
  90     int height = gdk_screen_height();
  91     if (rect)
  92     {
  93         x = rect->x;
  94         y = rect->y;
  95         width = rect->width;
  96         height = rect->height;
  97     }
  98
  99     return TRUE;
 100 }
 101
 102 bool wxScreenDC::EndDrawingOnTop()
 103 {
 104     return TRUE;
 105 }
 106
 107 void wxScreenDC::DoGetSize(int *width, int *height) const
 108 {
 109     wxDisplaySize(width, height);
 110 }