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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/motif/dcmemory.cpp | |
3 | // Purpose: wxMemoryDC 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 | #include "wx/dcmemory.h" | |
16 | ||
17 | #ifndef WX_PRECOMP | |
18 | #include "wx/utils.h" | |
19 | #endif | |
20 | ||
21 | #include "wx/settings.h" | |
22 | ||
23 | #ifdef __VMS__ | |
24 | #pragma message disable nosimpint | |
25 | #endif | |
26 | #include <Xm/Xm.h> | |
27 | #ifdef __VMS__ | |
28 | #pragma message enable nosimpint | |
29 | #endif | |
30 | ||
31 | #include "wx/motif/private.h" | |
32 | ||
33 | //----------------------------------------------------------------------------- | |
34 | // wxMemoryDC | |
35 | //----------------------------------------------------------------------------- | |
36 | ||
37 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxWindowDC) | |
38 | ||
39 | wxMemoryDC::wxMemoryDC(void) | |
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 = (int) gcvalues.background; | |
57 | ||
58 | SetBrush (* wxWHITE_BRUSH); | |
59 | SetPen (* wxBLACK_PEN); | |
60 | SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
61 | } | |
62 | ||
63 | wxMemoryDC::wxMemoryDC( wxDC* dc ) | |
64 | { | |
65 | m_ok = true; | |
66 | if (dc && dc->IsKindOf(CLASSINFO(wxWindowDC))) | |
67 | m_display = ((wxWindowDC*)dc)->GetDisplay(); | |
68 | else | |
69 | m_display = wxGetDisplay(); | |
70 | ||
71 | Display* display = (Display*) m_display; | |
72 | ||
73 | XGCValues gcvalues; | |
74 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
75 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
76 | gcvalues.graphics_exposures = False; | |
77 | gcvalues.subwindow_mode = IncludeInferiors; | |
78 | gcvalues.line_width = 1; | |
79 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
80 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
81 | &gcvalues); | |
82 | ||
83 | m_backgroundPixel = (int) gcvalues.background; | |
84 | ||
85 | SetBrush (* wxWHITE_BRUSH); | |
86 | SetPen (* wxBLACK_PEN); | |
87 | } | |
88 | ||
89 | wxMemoryDC::~wxMemoryDC(void) | |
90 | { | |
91 | } | |
92 | ||
93 | void wxMemoryDC::SelectObject( const wxBitmap& bitmap ) | |
94 | { | |
95 | m_bitmap = bitmap; | |
96 | ||
97 | if (m_gc) | |
98 | XFreeGC((Display*) m_display, (GC) m_gc); | |
99 | m_gc = (WXGC) NULL; | |
100 | ||
101 | if (m_bitmap.Ok() && (bitmap.GetDisplay() == m_display)) | |
102 | { | |
103 | m_pixmap = m_bitmap.GetDrawable(); | |
104 | Display* display = (Display*) m_display; | |
105 | ||
106 | XGCValues gcvalues; | |
107 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
108 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
109 | gcvalues.graphics_exposures = False; | |
110 | gcvalues.subwindow_mode = IncludeInferiors; | |
111 | gcvalues.line_width = 1; | |
112 | m_gc = (WXGC) XCreateGC (display, (Drawable)m_pixmap/* RootWindow (display, DefaultScreen (display)) */, | |
113 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
114 | &gcvalues); | |
115 | ||
116 | m_backgroundPixel = (int) gcvalues.background; | |
117 | m_ok = true; | |
118 | ||
119 | SetBrush (* wxWHITE_BRUSH); | |
120 | SetPen (* wxBLACK_PEN); | |
121 | } | |
122 | else | |
123 | { | |
124 | m_ok = false; | |
125 | m_pixmap = (WXPixmap) 0; | |
126 | }; | |
127 | } | |
128 | ||
129 | void wxMemoryDC::DoGetSize( int *width, int *height ) const | |
130 | { | |
131 | if (m_bitmap.Ok()) | |
132 | { | |
133 | if (width) (*width) = m_bitmap.GetWidth(); | |
134 | if (height) (*height) = m_bitmap.GetHeight(); | |
135 | } | |
136 | else | |
137 | { | |
138 | if (width) (*width) = 0; | |
139 | if (height) (*height) = 0; | |
140 | }; | |
141 | } | |
142 | ||
143 |