src/gtk1/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 #ifdef __GNUG__
  11 #pragma implementation "dcscreen.h"
  12 #endif
  13
  14 #include "wx/dcscreen.h"
  15 #include "wx/window.h"
  16
  17 #include <gdk/gdk.h>
  18 #include <gdk/gdkx.h>
  19 #include <gtk/gtk.h>
  20
  21 //-----------------------------------------------------------------------------
  22 // global data initialization
  23 //-----------------------------------------------------------------------------
  24
  25 GdkWindow *wxScreenDC::sm_overlayWindow  = (GdkWindow*) 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     m_cmap = gdk_colormap_get_system();
  39     m_window = GDK_ROOT_PARENT();
  40
  41     SetUpDC();
  42
  43     gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
  44     gdk_gc_set_subwindow( m_brushGC, GDK_INCLUDE_INFERIORS );
  45     gdk_gc_set_subwindow( m_textGC, GDK_INCLUDE_INFERIORS );
  46     gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS );
  47 }
  48
  49 wxScreenDC::~wxScreenDC()
  50 {
  51     gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
  52     gdk_gc_set_subwindow( m_brushGC, GDK_CLIP_BY_CHILDREN );
  53     gdk_gc_set_subwindow( m_textGC, GDK_CLIP_BY_CHILDREN );
  54     gdk_gc_set_subwindow( m_bgGC, GDK_CLIP_BY_CHILDREN );
  55
  56     EndDrawingOnTop();
  57 }
  58
  59 bool wxScreenDC::StartDrawingOnTop( wxWindow *window )
  60 {
  61     if (!window) return StartDrawingOnTop();
  62
  63     int x = 0;
  64     int y = 0;
  65     window->GetPosition( &x, &y );
  66     int w = 0;
  67     int h = 0;
  68     window->GetSize( &w, &h );
  69     window->ClientToScreen( &x, &y );
  70
  71     wxRect rect;
  72     rect.x = x;
  73     rect.y = y;
  74     rect.width = 0;
  75     rect.height = 0;
  76
  77     return StartDrawingOnTop( &rect );
  78 }
  79
  80 bool wxScreenDC::StartDrawingOnTop( wxRect *rect )
  81 {
  82     int x = 0;
  83     int y = 0;
  84     int width = gdk_screen_width();
  85     int height = gdk_screen_height();
  86     if (rect)
  87     {
  88         x = rect->x;
  89         y = rect->y;
  90         width = rect->width;
  91         height = rect->height;
  92     }
  93
  94     return TRUE;
  95 }
  96
  97 bool wxScreenDC::EndDrawingOnTop()
  98 {
  99     return TRUE;
 100 }
 101