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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: 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 | #ifdef __GNUG__ | |
13 | #pragma implementation "dcmemory.h" | |
14 | #endif | |
15 | ||
16 | #include "wx/dcmemory.h" | |
17 | #include "wx/settings.h" | |
18 | #include "wx/utils.h" | |
19 | ||
20 | #ifdef __VMS__ | |
21 | #pragma message disable nosimpint | |
22 | #endif | |
23 | #include <Xm/Xm.h> | |
24 | #ifdef __VMS__ | |
25 | #pragma message enable nosimpint | |
26 | #endif | |
27 | ||
28 | #include "wx/motif/private.h" | |
29 | ||
30 | //----------------------------------------------------------------------------- | |
31 | // wxMemoryDC | |
32 | //----------------------------------------------------------------------------- | |
33 | ||
34 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxWindowDC) | |
35 | ||
36 | wxMemoryDC::wxMemoryDC(void) | |
37 | { | |
38 | m_ok = TRUE; | |
39 | m_display = wxGetDisplay(); | |
40 | ||
41 | Display* display = (Display*) m_display; | |
42 | ||
43 | XGCValues gcvalues; | |
44 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
45 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
46 | gcvalues.graphics_exposures = False; | |
47 | gcvalues.line_width = 1; | |
48 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
49 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, | |
50 | &gcvalues); | |
51 | ||
52 | m_backgroundPixel = (int) gcvalues.background; | |
53 | ||
54 | // Get the current Font so we can set it back later | |
55 | XGCValues valReturn; | |
56 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); | |
57 | m_oldFont = (WXFont) valReturn.font; | |
58 | SetBrush (* wxWHITE_BRUSH); | |
59 | SetPen (* wxBLACK_PEN); | |
60 | SetFont(wxSystemSettings::GetSystemFont(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.line_width = 1; | |
78 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
79 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, | |
80 | &gcvalues); | |
81 | ||
82 | m_backgroundPixel = (int) gcvalues.background; | |
83 | ||
84 | // Get the current Font so we can set it back later | |
85 | XGCValues valReturn; | |
86 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); | |
87 | m_oldFont = (WXFont) valReturn.font; | |
88 | SetBrush (* wxWHITE_BRUSH); | |
89 | SetPen (* wxBLACK_PEN); | |
90 | }; | |
91 | ||
92 | wxMemoryDC::~wxMemoryDC(void) | |
93 | { | |
94 | }; | |
95 | ||
96 | void wxMemoryDC::SelectObject( const wxBitmap& bitmap ) | |
97 | { | |
98 | m_bitmap = bitmap; | |
99 | ||
100 | if (m_gc) | |
101 | XFreeGC((Display*) m_display, (GC) m_gc); | |
102 | m_gc = (WXGC) NULL; | |
103 | ||
104 | if (m_bitmap.Ok() && (bitmap.GetDisplay() == m_display)) | |
105 | { | |
106 | m_pixmap = m_bitmap.GetPixmap(); | |
107 | Display* display = (Display*) m_display; | |
108 | ||
109 | XGCValues gcvalues; | |
110 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
111 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
112 | gcvalues.graphics_exposures = False; | |
113 | gcvalues.line_width = 1; | |
114 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
115 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth, | |
116 | &gcvalues); | |
117 | ||
118 | m_backgroundPixel = (int) gcvalues.background; | |
119 | ||
120 | // Get the current Font so we can set it back later | |
121 | XGCValues valReturn; | |
122 | XGetGCValues((Display*) m_display, (GC) m_gc, GCFont, &valReturn); | |
123 | m_oldFont = (WXFont) valReturn.font; | |
124 | ||
125 | bool oldOpt = GetOptimization(); | |
126 | SetOptimization(FALSE); | |
127 | ||
128 | SetBrush (* wxWHITE_BRUSH); | |
129 | SetPen (* wxBLACK_PEN); | |
130 | ||
131 | SetOptimization(oldOpt); | |
132 | ||
133 | m_ok = TRUE; | |
134 | } | |
135 | else | |
136 | { | |
137 | m_ok = FALSE; | |
138 | m_pixmap = (WXPixmap) 0; | |
139 | }; | |
140 | }; | |
141 | ||
142 | void wxMemoryDC::DoGetSize( int *width, int *height ) const | |
143 | { | |
144 | if (m_bitmap.Ok()) | |
145 | { | |
146 | if (width) (*width) = m_bitmap.GetWidth(); | |
147 | if (height) (*height) = m_bitmap.GetHeight(); | |
148 | } | |
149 | else | |
150 | { | |
151 | if (width) (*width) = 0; | |
152 | if (height) (*height) = 0; | |
153 | }; | |
154 | }; | |
155 | ||
156 |