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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/motif/dcmemory.cpp | |
3 | // Purpose: wxMemoryDCImpl class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/utils.h" | |
17 | #include "wx/settings.h" | |
18 | #include "wx/dcmemory.h" | |
19 | #include "wx/dcclient.h" | |
20 | #endif | |
21 | ||
22 | #ifdef __VMS__ | |
23 | #pragma message disable nosimpint | |
24 | #endif | |
25 | #include <Xm/Xm.h> | |
26 | #ifdef __VMS__ | |
27 | #pragma message enable nosimpint | |
28 | #endif | |
29 | ||
30 | #include "wx/motif/private.h" | |
31 | #include "wx/motif/dcmemory.h" | |
32 | ||
33 | //----------------------------------------------------------------------------- | |
34 | // wxMemoryDCImpl | |
35 | //----------------------------------------------------------------------------- | |
36 | ||
37 | IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxWindowDCImpl) | |
38 | ||
39 | void wxMemoryDCImpl::Init() | |
40 | { | |
41 | m_ok = true; | |
42 | m_display = wxGetDisplay(); | |
43 | ||
44 | Display* display = (Display*) m_display; | |
45 | ||
46 | XGCValues gcvalues; | |
47 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
48 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
49 | gcvalues.graphics_exposures = False; | |
50 | gcvalues.subwindow_mode = IncludeInferiors; | |
51 | gcvalues.line_width = 1; | |
52 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
53 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
54 | &gcvalues); | |
55 | ||
56 | m_backgroundPixel = gcvalues.background; | |
57 | ||
58 | SetBrush (* wxWHITE_BRUSH); | |
59 | SetPen (* wxBLACK_PEN); | |
60 | SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
61 | } | |
62 | ||
63 | wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC *owner, wxDC* dc) | |
64 | : wxWindowDCImpl(owner) | |
65 | { | |
66 | m_ok = true; | |
67 | if (dc && dc->IsKindOf(CLASSINFO(wxWindowDC))) | |
68 | m_display = ((wxWindowDCImpl *)dc->GetImpl())->GetDisplay(); | |
69 | else | |
70 | m_display = wxGetDisplay(); | |
71 | ||
72 | Display* display = (Display*) m_display; | |
73 | ||
74 | XGCValues gcvalues; | |
75 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
76 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
77 | gcvalues.graphics_exposures = False; | |
78 | gcvalues.subwindow_mode = IncludeInferiors; | |
79 | gcvalues.line_width = 1; | |
80 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
81 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
82 | &gcvalues); | |
83 | ||
84 | m_backgroundPixel = gcvalues.background; | |
85 | ||
86 | SetBrush (* wxWHITE_BRUSH); | |
87 | SetPen (* wxBLACK_PEN); | |
88 | } | |
89 | ||
90 | wxMemoryDCImpl::~wxMemoryDCImpl(void) | |
91 | { | |
92 | } | |
93 | ||
94 | void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap ) | |
95 | { | |
96 | m_bitmap = bitmap; | |
97 | ||
98 | if (m_gc) | |
99 | XFreeGC((Display*) m_display, (GC) m_gc); | |
100 | m_gc = (WXGC) NULL; | |
101 | ||
102 | if (m_bitmap.IsOk() && (bitmap.GetDisplay() == m_display)) | |
103 | { | |
104 | m_pixmap = m_bitmap.GetDrawable(); | |
105 | Display* display = (Display*) m_display; | |
106 | ||
107 | XGCValues gcvalues; | |
108 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
109 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
110 | gcvalues.graphics_exposures = False; | |
111 | gcvalues.subwindow_mode = IncludeInferiors; | |
112 | gcvalues.line_width = 1; | |
113 | m_gc = (WXGC) XCreateGC (display, (Drawable)m_pixmap/* RootWindow (display, DefaultScreen (display)) */, | |
114 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
115 | &gcvalues); | |
116 | ||
117 | m_backgroundPixel = gcvalues.background; | |
118 | m_ok = true; | |
119 | ||
120 | SetBrush (* wxWHITE_BRUSH); | |
121 | SetPen (* wxBLACK_PEN); | |
122 | } | |
123 | else | |
124 | { | |
125 | m_ok = false; | |
126 | m_pixmap = (WXPixmap) 0; | |
127 | }; | |
128 | } | |
129 | ||
130 | void wxMemoryDCImpl::DoGetSize( int *width, int *height ) const | |
131 | { | |
132 | if (m_bitmap.IsOk()) | |
133 | { | |
134 | if (width) (*width) = m_bitmap.GetWidth(); | |
135 | if (height) (*height) = m_bitmap.GetHeight(); | |
136 | } | |
137 | else | |
138 | { | |
139 | if (width) (*width) = 0; | |
140 | if (height) (*height) = 0; | |
141 | }; | |
142 | } |