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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/mgl/brush.cpp | |
3 | // Purpose: | |
4 | // Author: Vaclav Slavik | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #ifdef __BORLANDC__ | |
14 | #pragma hdrstop | |
15 | #endif | |
16 | ||
17 | #include "wx/brush.h" | |
18 | #include "wx/mgl/private.h" | |
19 | #include "wx/dcmemory.h" | |
20 | ||
21 | ||
22 | // --------------------------------------------------------------------------- | |
23 | // helper functions | |
24 | // --------------------------------------------------------------------------- | |
25 | ||
26 | // This function converts wxBitmap into pixpattern24_t representation | |
27 | // (used by wxBrush and wxPen) | |
28 | ||
29 | void wxBitmapToPixPattern(const wxBitmap& bitmap, | |
30 | pixpattern24_t *pix, pattern_t *mask) | |
31 | { | |
32 | wxMemoryDC mem; | |
33 | MGLDevCtx *dc; | |
34 | int x, y; | |
35 | ||
36 | if ( pix != NULL ) | |
37 | { | |
38 | mem.SelectObjectAsSource(bitmap); | |
39 | dc = mem.GetMGLDC(); | |
40 | wxCurrentDCSwitcher curDC(dc); | |
41 | dc->beginPixel(); | |
42 | for (y = 0; y < 8; y++) | |
43 | for (x = 0; x < 8; x++) | |
44 | dc->unpackColorFast(dc->getPixelFast(x, y), | |
45 | pix->p[y][x][2], | |
46 | pix->p[y][x][1], | |
47 | pix->p[y][x][0]); | |
48 | dc->endPixel(); | |
49 | } | |
50 | ||
51 | if ( mask && bitmap.GetMask() ) | |
52 | { | |
53 | mem.SelectObjectAsSource(bitmap.GetMask()->GetBitmap()); | |
54 | dc = mem.GetMGLDC(); | |
55 | wxCurrentDCSwitcher curDC(dc); | |
56 | dc->beginPixel(); | |
57 | for (y = 0; y < 8; y++) | |
58 | { | |
59 | mask->p[y] = 0; | |
60 | for (x = 0; x < 8; x++) | |
61 | if ( dc->getPixelFast(x, y) != 0 ) | |
62 | mask->p[y] = (uchar)(mask->p[y] | (1 << (7 - x))); | |
63 | } | |
64 | dc->endPixel(); | |
65 | } | |
66 | } | |
67 | ||
68 | ||
69 | //----------------------------------------------------------------------------- | |
70 | // wxBrush | |
71 | //----------------------------------------------------------------------------- | |
72 | ||
73 | class wxBrushRefData : public wxGDIRefData | |
74 | { | |
75 | public: | |
76 | wxBrushRefData(); | |
77 | wxBrushRefData(const wxBrushRefData& data); | |
78 | ||
79 | virtual bool IsOk() const { return m_colour.IsOk(); } | |
80 | ||
81 | bool operator==(const wxBrushRefData& data) const | |
82 | { | |
83 | return (m_style == data.m_style && | |
84 | m_stipple.IsSameAs(data.m_stipple) && | |
85 | m_colour == data.m_colour); | |
86 | } | |
87 | ||
88 | wxBrushStyle m_style; | |
89 | wxColour m_colour; | |
90 | wxBitmap m_stipple; | |
91 | pixpattern24_t m_pixPattern; | |
92 | pattern_t m_maskPattern; | |
93 | }; | |
94 | ||
95 | wxBrushRefData::wxBrushRefData() | |
96 | { | |
97 | m_style = 0; | |
98 | ||
99 | int x, y, c; | |
100 | for (y = 0; y < 8; y++) | |
101 | for (x = 0; x < 8; x++) | |
102 | for (c = 0; c < 3; c++) | |
103 | m_pixPattern.p[y][x][c] = 0; | |
104 | for (y = 0; y < 8; y++) | |
105 | m_maskPattern.p[y] = 0; | |
106 | } | |
107 | ||
108 | wxBrushRefData::wxBrushRefData(const wxBrushRefData& data) | |
109 | { | |
110 | m_style = data.m_style; | |
111 | m_stipple = data.m_stipple; | |
112 | m_colour = data.m_colour; | |
113 | ||
114 | int x, y, c; | |
115 | for (y = 0; y < 8; y++) | |
116 | for (x = 0; x < 8; x++) | |
117 | for (c = 0; c < 3; c++) | |
118 | m_pixPattern.p[y][x][c] = data.m_pixPattern.p[y][x][c]; | |
119 | for (y = 0; y < 8; y++) | |
120 | m_maskPattern.p[y] = data.m_maskPattern.p[y]; | |
121 | } | |
122 | ||
123 | //----------------------------------------------------------------------------- | |
124 | ||
125 | #define M_BRUSHDATA ((wxBrushRefData *)m_refData) | |
126 | ||
127 | IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject) | |
128 | ||
129 | wxBrush::wxBrush(const wxColour &colour, wxBrushStyle style) | |
130 | { | |
131 | m_refData = new wxBrushRefData(); | |
132 | M_BRUSHDATA->m_style = style; | |
133 | M_BRUSHDATA->m_colour = colour; | |
134 | } | |
135 | ||
136 | #if FUTURE_WXWIN_COMPATIBILITY_3_0 | |
137 | wxBrush::wxBrush(const wxColour& col, int style) | |
138 | { | |
139 | m_refData = new wxBrushRefData; | |
140 | M_BRUSHDATA->m_style = (wxBrushStyle)style; | |
141 | M_BRUSHDATA->m_colour = colour; | |
142 | } | |
143 | #endif | |
144 | ||
145 | wxBrush::wxBrush(const wxBitmap &stippleBitmap) | |
146 | { | |
147 | wxCHECK_RET( stippleBitmap.Ok(), _T("invalid bitmap") ); | |
148 | wxCHECK_RET( stippleBitmap.GetWidth() == 8 && stippleBitmap.GetHeight() == 8, | |
149 | _T("stipple bitmap must be 8x8") ); | |
150 | ||
151 | m_refData = new wxBrushRefData(); | |
152 | M_BRUSHDATA->m_colour = *wxBLACK; | |
153 | ||
154 | M_BRUSHDATA->m_stipple = stippleBitmap; | |
155 | wxBitmapToPixPattern(stippleBitmap, &(M_BRUSHDATA->m_pixPattern), | |
156 | &(M_BRUSHDATA->m_maskPattern)); | |
157 | ||
158 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
159 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
160 | else | |
161 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
162 | } | |
163 | ||
164 | bool wxBrush::operator == (const wxBrush& brush) const | |
165 | { | |
166 | if (m_refData == brush.m_refData) return true; | |
167 | ||
168 | if (!m_refData || !brush.m_refData) return false; | |
169 | ||
170 | return *(wxBrushRefData*)m_refData == *(wxBrushRefData*)brush.m_refData; | |
171 | } | |
172 | ||
173 | bool wxBrush::operator != (const wxBrush& brush) const | |
174 | { | |
175 | return m_refData != brush.m_refData; | |
176 | } | |
177 | ||
178 | wxBrushStyle wxBrush::GetStyle() const | |
179 | { | |
180 | wxCHECK_MSG( Ok(), wxBRUSHSTYLE_INVALID, _T("invalid brush") ); | |
181 | ||
182 | return M_BRUSHDATA->m_style; | |
183 | } | |
184 | ||
185 | wxColour wxBrush::GetColour() const | |
186 | { | |
187 | wxCHECK_MSG( Ok(), wxNullColour, _T("invalid brush") ); | |
188 | ||
189 | return M_BRUSHDATA->m_colour; | |
190 | } | |
191 | ||
192 | wxBitmap *wxBrush::GetStipple() const | |
193 | { | |
194 | wxCHECK_MSG( Ok(), NULL, _T("invalid brush") ); | |
195 | ||
196 | return &M_BRUSHDATA->m_stipple; | |
197 | } | |
198 | ||
199 | void* wxBrush::GetMaskPattern() const | |
200 | { | |
201 | wxCHECK_MSG( Ok(), NULL, wxT("invalid brush") ); | |
202 | ||
203 | return (void*)&(M_BRUSHDATA->m_maskPattern); | |
204 | } | |
205 | ||
206 | void* wxBrush::GetPixPattern() const | |
207 | { | |
208 | wxCHECK_MSG( Ok(), NULL, wxT("invalid brush") ); | |
209 | ||
210 | return (void*)&(M_BRUSHDATA->m_pixPattern); | |
211 | } | |
212 | ||
213 | void wxBrush::SetColour(const wxColour& col) | |
214 | { | |
215 | AllocExclusive(); | |
216 | M_BRUSHDATA->m_colour = col; | |
217 | } | |
218 | ||
219 | void wxBrush::SetColour(unsigned char r, unsigned char g, unsigned char b) | |
220 | { | |
221 | AllocExclusive(); | |
222 | M_BRUSHDATA->m_colour.Set(r, g, b); | |
223 | } | |
224 | ||
225 | void wxBrush::SetStyle( wxBrushStyle style ) | |
226 | { | |
227 | AllocExclusive(); | |
228 | M_BRUSHDATA->m_style = style; | |
229 | } | |
230 | ||
231 | void wxBrush::SetStipple(const wxBitmap& stipple) | |
232 | { | |
233 | AllocExclusive(); | |
234 | ||
235 | wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") ); | |
236 | wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8, | |
237 | _T("stipple bitmap must be 8x8") ); | |
238 | ||
239 | M_BRUSHDATA->m_stipple = stipple; | |
240 | wxBitmapToPixPattern(stipple, &(M_BRUSHDATA->m_pixPattern), | |
241 | &(M_BRUSHDATA->m_maskPattern)); | |
242 | ||
243 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
244 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
245 | else | |
246 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
247 | } | |
248 | ||
249 | wxGDIRefData *wxBrush::CreateGDIRefData() const | |
250 | { | |
251 | return new wxBrushRefData; | |
252 | } | |
253 | ||
254 | wxGDIRefData *wxBrush::CloneGDIRefData(const wxGDIRefData *data) const | |
255 | { | |
256 | return new wxBrushRefData(*(wxBrushRefData *)data); | |
257 | } |