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[wxWidgets.git] / src / motif / dcscreen.cpp
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4bb6408c 1/////////////////////////////////////////////////////////////////////////////
de6185e2 2// Name: src/motif/dcscreen.cpp
fce127d7 3// Purpose: wxScreenDCImpl class
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4// Author: Julian Smart
5// Modified by:
6// Created: 17/09/98
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
de6185e2 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// For compilers that support precompilation, includes "wx.h".
13#include "wx/wxprec.h"
14
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15#ifndef WX_PRECOMP
16 #include "wx/utils.h"
cdccdfab 17 #include "wx/window.h"
76b49cf4 18 #include "wx/frame.h"
76c32e7b 19 #include "wx/dcscreen.h"
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20#endif
21
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22#ifdef __VMS__
23#pragma message disable nosimpint
24#endif
89c7e962 25#include <Xm/Xm.h>
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26#ifdef __VMS__
27#pragma message enable nosimpint
28#endif
89c7e962 29
3096bd2f 30#include "wx/motif/private.h"
fce127d7 31#include "wx/motif/dcscreen.h"
4bb6408c 32
fce127d7 33IMPLEMENT_ABSTRACT_CLASS(wxScreenDCImpl, wxWindowDCImpl)
4bb6408c 34
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35WXWindow wxScreenDCImpl::sm_overlayWindow = 0;
36int wxScreenDCImpl::sm_overlayWindowX = 0;
37int wxScreenDCImpl::sm_overlayWindowY = 0;
89c7e962 38
4bb6408c 39// Create a DC representing the whole screen
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40wxScreenDCImpl::wxScreenDCImpl(wxScreenDC *owner)
41 : wxWindowDCImpl(owner)
4bb6408c 42{
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43 m_display = wxGetDisplay();
44 Display* display = (Display*) m_display;
de6185e2 45
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46 if (sm_overlayWindow)
47 {
48 m_pixmap = sm_overlayWindow;
49 m_deviceOriginX = - sm_overlayWindowX;
50 m_deviceOriginY = - sm_overlayWindowY;
51 }
52 else
53 m_pixmap = (WXPixmap) RootWindow(display, DefaultScreen(display));
de6185e2 54
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55 XGCValues gcvalues;
56 gcvalues.foreground = BlackPixel (display, DefaultScreen (display));
57 gcvalues.background = WhitePixel (display, DefaultScreen (display));
58 gcvalues.graphics_exposures = False;
59 gcvalues.subwindow_mode = IncludeInferiors;
60 gcvalues.line_width = 1;
61 m_gc = XCreateGC (display, RootWindow (display, DefaultScreen (display)),
62 GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
63 &gcvalues);
de6185e2 64
3e0071d9 65 m_backgroundPixel = gcvalues.background;
96be256b 66 m_ok = true;
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67}
68
fce127d7 69wxScreenDCImpl::~wxScreenDCImpl()
4bb6408c 70{
68be9f09 71 EndDrawingOnTop();
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72}
73
fce127d7 74bool wxScreenDCImpl::StartDrawingOnTop(wxWindow* window)
dfc54541 75{
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76 wxRect rect;
77 int x, y, width, height;
78 window->GetPosition(& x, & y);
68be9f09 79 if (window->GetParent() && !window->IsKindOf(CLASSINFO(wxFrame)))
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80 window->GetParent()->ClientToScreen(& x, & y);
81 window->GetSize(& width, & height);
82 rect.x = x; rect.y = y;
83 rect.width = width; rect.height = height;
de6185e2 84
2d120f83 85 return StartDrawingOnTop(& rect);
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86}
87
fce127d7 88bool wxScreenDCImpl::StartDrawingOnTop(wxRect* rect)
dfc54541 89{
2d120f83 90 if (sm_overlayWindow)
96be256b 91 return false;
de6185e2 92
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93 Display *dpy = (Display*) wxGetDisplay();
94 Pixmap screenPixmap = RootWindow(dpy, DefaultScreen(dpy));
de6185e2 95
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96 int x = 0;
97 int y = 0;
98 int width, height;
99 wxDisplaySize(&width, &height);
de6185e2 100
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101 if (rect)
102 {
103 x = rect->x; y = rect->y;
104 width = rect->width; height = rect->height;
105 }
106 sm_overlayWindowX = x;
107 sm_overlayWindowY = y;
de6185e2 108
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109 XSetWindowAttributes attributes;
110 attributes.override_redirect = True;
111 unsigned long valueMask = CWOverrideRedirect;
de6185e2 112
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113 sm_overlayWindow = (WXWindow) XCreateWindow(dpy, screenPixmap, x, y, width, height, 0,
114 wxDisplayDepth(), InputOutput,
115 DefaultVisual(dpy, 0), valueMask,
116 & attributes);
de6185e2 117
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118 if (sm_overlayWindow)
119 {
120 XMapWindow(dpy, (Window) sm_overlayWindow);
96be256b 121 return true;
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122 }
123 else
96be256b 124 return false;
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125}
126
fce127d7 127bool wxScreenDCImpl::EndDrawingOnTop()
dfc54541 128{
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129 if (sm_overlayWindow)
130 {
131 XDestroyWindow((Display*) wxGetDisplay(), (Window) sm_overlayWindow);
132 sm_overlayWindow = 0;
96be256b 133 return true;
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134 }
135 else
96be256b 136 return false;
dfc54541 137}