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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 | #include "wx/settings.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 | ||
32 | //----------------------------------------------------------------------------- | |
33 | // wxMemoryDC | |
34 | //----------------------------------------------------------------------------- | |
35 | ||
36 | IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxWindowDC) | |
37 | ||
38 | wxMemoryDC::wxMemoryDC( const wxBitmap& bitmap ) | |
39 | { | |
40 | m_ok = true; | |
41 | m_display = wxGetDisplay(); | |
42 | ||
43 | Display* display = (Display*) m_display; | |
44 | ||
45 | XGCValues gcvalues; | |
46 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
47 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
48 | gcvalues.graphics_exposures = False; | |
49 | gcvalues.subwindow_mode = IncludeInferiors; | |
50 | gcvalues.line_width = 1; | |
51 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
52 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
53 | &gcvalues); | |
54 | ||
55 | m_backgroundPixel = gcvalues.background; | |
56 | ||
57 | SetBrush (* wxWHITE_BRUSH); | |
58 | SetPen (* wxBLACK_PEN); | |
59 | SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); | |
60 | ||
61 | if ( bitmap.IsOk() ) | |
62 | SelectObject(bitmap); | |
63 | } | |
64 | ||
65 | wxMemoryDC::wxMemoryDC( wxDC* dc ) | |
66 | { | |
67 | m_ok = true; | |
68 | if (dc && dc->IsKindOf(CLASSINFO(wxWindowDC))) | |
69 | m_display = ((wxWindowDC*)dc)->GetDisplay(); | |
70 | else | |
71 | m_display = wxGetDisplay(); | |
72 | ||
73 | Display* display = (Display*) m_display; | |
74 | ||
75 | XGCValues gcvalues; | |
76 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
77 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
78 | gcvalues.graphics_exposures = False; | |
79 | gcvalues.subwindow_mode = IncludeInferiors; | |
80 | gcvalues.line_width = 1; | |
81 | m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)), | |
82 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
83 | &gcvalues); | |
84 | ||
85 | m_backgroundPixel = gcvalues.background; | |
86 | ||
87 | SetBrush (* wxWHITE_BRUSH); | |
88 | SetPen (* wxBLACK_PEN); | |
89 | } | |
90 | ||
91 | wxMemoryDC::~wxMemoryDC(void) | |
92 | { | |
93 | } | |
94 | ||
95 | void wxMemoryDC::SelectObject( const wxBitmap& bitmap ) | |
96 | { | |
97 | m_bitmap = bitmap; | |
98 | ||
99 | if (m_gc) | |
100 | XFreeGC((Display*) m_display, (GC) m_gc); | |
101 | m_gc = (WXGC) NULL; | |
102 | ||
103 | if (m_bitmap.Ok() && (bitmap.GetDisplay() == m_display)) | |
104 | { | |
105 | m_pixmap = m_bitmap.GetDrawable(); | |
106 | Display* display = (Display*) m_display; | |
107 | ||
108 | XGCValues gcvalues; | |
109 | gcvalues.foreground = BlackPixel (display, DefaultScreen (display)); | |
110 | gcvalues.background = WhitePixel (display, DefaultScreen (display)); | |
111 | gcvalues.graphics_exposures = False; | |
112 | gcvalues.subwindow_mode = IncludeInferiors; | |
113 | gcvalues.line_width = 1; | |
114 | m_gc = (WXGC) XCreateGC (display, (Drawable)m_pixmap/* RootWindow (display, DefaultScreen (display)) */, | |
115 | GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode, | |
116 | &gcvalues); | |
117 | ||
118 | m_backgroundPixel = gcvalues.background; | |
119 | m_ok = true; | |
120 | ||
121 | SetBrush (* wxWHITE_BRUSH); | |
122 | SetPen (* wxBLACK_PEN); | |
123 | } | |
124 | else | |
125 | { | |
126 | m_ok = false; | |
127 | m_pixmap = (WXPixmap) 0; | |
128 | }; | |
129 | } | |
130 | ||
131 | void wxMemoryDC::DoGetSize( int *width, int *height ) const | |
132 | { | |
133 | if (m_bitmap.Ok()) | |
134 | { | |
135 | if (width) (*width) = m_bitmap.GetWidth(); | |
136 | if (height) (*height) = m_bitmap.GetHeight(); | |
137 | } | |
138 | else | |
139 | { | |
140 | if (width) (*width) = 0; | |
141 | if (height) (*height) = 0; | |
142 | }; | |
143 | } |