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 #ifdef __WXGTK20__
  45     m_context = gdk_pango_context_get();
  46     m_layout = pango_layout_new( m_context );
  47 //    m_fontdesc = pango_font_description_copy( widget->style->font_desc );
  48 #endif
  49
  50     m_isScreenDC = TRUE;
  51
  52     SetUpDC();
  53
  54     gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
  55     gdk_gc_set_subwindow( m_brushGC, GDK_INCLUDE_INFERIORS );
  56     gdk_gc_set_subwindow( m_textGC, GDK_INCLUDE_INFERIORS );
  57     gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS );
  58 }
  59
  60 wxScreenDC::~wxScreenDC()
  61 {
  62     gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
  63     gdk_gc_set_subwindow( m_brushGC, GDK_CLIP_BY_CHILDREN );
  64     gdk_gc_set_subwindow( m_textGC, GDK_CLIP_BY_CHILDREN );
  65     gdk_gc_set_subwindow( m_bgGC, GDK_CLIP_BY_CHILDREN );
  66
  67     EndDrawingOnTop();
  68 }
  69
  70 bool wxScreenDC::StartDrawingOnTop( wxWindow *window )
  71 {
  72     if (!window) return StartDrawingOnTop();
  73
  74     int x = 0;
  75     int y = 0;
  76     window->GetPosition( &x, &y );
  77     int w = 0;
  78     int h = 0;
  79     window->GetSize( &w, &h );
  80     window->ClientToScreen( &x, &y );
  81
  82     wxRect rect;
  83     rect.x = x;
  84     rect.y = y;
  85     rect.width = 0;
  86     rect.height = 0;
  87
  88     return StartDrawingOnTop( &rect );
  89 }
  90
  91 bool wxScreenDC::StartDrawingOnTop( wxRect *rect )
  92 {
  93     int x = 0;
  94     int y = 0;
  95     int width = gdk_screen_width();
  96     int height = gdk_screen_height();
  97     if (rect)
  98     {
  99         x = rect->x;
 100         y = rect->y;
 101         width = rect->width;
 102         height = rect->height;
 103     }
 104
 105     return TRUE;
 106 }
 107
 108 bool wxScreenDC::EndDrawingOnTop()
 109 {
 110     return TRUE;
 111 }
 112
 113 void wxScreenDC::DoGetSize(int *width, int *height) const
 114 {
 115     wxDisplaySize(width, height);
 116 }