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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/mgl/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.SelectObject(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.SelectObject(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 wxObjectRefData | |
74 | { | |
75 | public: | |
76 | wxBrushRefData(); | |
77 | wxBrushRefData(const wxBrushRefData& data); | |
78 | ||
79 | bool operator == (const wxBrushRefData& data) const | |
80 | { | |
81 | return (m_style == data.m_style && | |
82 | m_stipple.IsSameAs(data.m_stipple) && | |
83 | m_colour == data.m_colour); | |
84 | } | |
85 | ||
86 | int m_style; | |
87 | wxColour m_colour; | |
88 | wxBitmap m_stipple; | |
89 | pixpattern24_t m_pixPattern; | |
90 | pattern_t m_maskPattern; | |
91 | }; | |
92 | ||
93 | wxBrushRefData::wxBrushRefData() | |
94 | { | |
95 | m_style = 0; | |
96 | ||
97 | int x, y, c; | |
98 | for (y = 0; y < 8; y++) | |
99 | for (x = 0; x < 8; x++) | |
100 | for (c = 0; c < 3; c++) | |
101 | m_pixPattern.p[y][x][c] = 0; | |
102 | for (y = 0; y < 8; y++) | |
103 | m_maskPattern.p[y] = 0; | |
104 | } | |
105 | ||
106 | wxBrushRefData::wxBrushRefData(const wxBrushRefData& data) | |
107 | { | |
108 | m_style = data.m_style; | |
109 | m_stipple = data.m_stipple; | |
110 | m_colour = data.m_colour; | |
111 | ||
112 | int x, y, c; | |
113 | for (y = 0; y < 8; y++) | |
114 | for (x = 0; x < 8; x++) | |
115 | for (c = 0; c < 3; c++) | |
116 | m_pixPattern.p[y][x][c] = data.m_pixPattern.p[y][x][c]; | |
117 | for (y = 0; y < 8; y++) | |
118 | m_maskPattern.p[y] = data.m_maskPattern.p[y]; | |
119 | } | |
120 | ||
121 | //----------------------------------------------------------------------------- | |
122 | ||
123 | #define M_BRUSHDATA ((wxBrushRefData *)m_refData) | |
124 | ||
125 | IMPLEMENT_DYNAMIC_CLASS(wxBrush,wxGDIObject) | |
126 | ||
127 | wxBrush::wxBrush(const wxColour &colour, int style) | |
128 | { | |
129 | m_refData = new wxBrushRefData(); | |
130 | M_BRUSHDATA->m_style = style; | |
131 | M_BRUSHDATA->m_colour = colour; | |
132 | } | |
133 | ||
134 | wxBrush::wxBrush(const wxBitmap &stippleBitmap) | |
135 | { | |
136 | wxCHECK_RET( stippleBitmap.Ok(), _T("invalid bitmap") ); | |
137 | wxCHECK_RET( stippleBitmap.GetWidth() == 8 && stippleBitmap.GetHeight() == 8, | |
138 | _T("stipple bitmap must be 8x8") ); | |
139 | ||
140 | m_refData = new wxBrushRefData(); | |
141 | M_BRUSHDATA->m_colour = *wxBLACK; | |
142 | ||
143 | M_BRUSHDATA->m_stipple = stippleBitmap; | |
144 | wxBitmapToPixPattern(stippleBitmap, &(M_BRUSHDATA->m_pixPattern), | |
145 | &(M_BRUSHDATA->m_maskPattern)); | |
146 | ||
147 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
148 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
149 | else | |
150 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
151 | } | |
152 | ||
153 | bool wxBrush::operator == (const wxBrush& brush) const | |
154 | { | |
155 | if (m_refData == brush.m_refData) return true; | |
156 | ||
157 | if (!m_refData || !brush.m_refData) return false; | |
158 | ||
159 | return *(wxBrushRefData*)m_refData == *(wxBrushRefData*)brush.m_refData; | |
160 | } | |
161 | ||
162 | bool wxBrush::operator != (const wxBrush& brush) const | |
163 | { | |
164 | return m_refData != brush.m_refData; | |
165 | } | |
166 | ||
167 | bool wxBrush::IsOk() const | |
168 | { | |
169 | return ((m_refData) && M_BRUSHDATA->m_colour.Ok()); | |
170 | } | |
171 | ||
172 | int wxBrush::GetStyle() const | |
173 | { | |
174 | if (m_refData == NULL) | |
175 | { | |
176 | wxFAIL_MSG( wxT("invalid brush") ); | |
177 | return 0; | |
178 | } | |
179 | ||
180 | return M_BRUSHDATA->m_style; | |
181 | } | |
182 | ||
183 | wxColour &wxBrush::GetColour() const | |
184 | { | |
185 | if (m_refData == NULL) | |
186 | { | |
187 | wxFAIL_MSG( wxT("invalid brush") ); | |
188 | return wxNullColour; | |
189 | } | |
190 | ||
191 | return M_BRUSHDATA->m_colour; | |
192 | } | |
193 | ||
194 | wxBitmap *wxBrush::GetStipple() const | |
195 | { | |
196 | if (m_refData == NULL) | |
197 | { | |
198 | wxFAIL_MSG( wxT("invalid brush") ); | |
199 | return &wxNullBitmap; | |
200 | } | |
201 | ||
202 | return &M_BRUSHDATA->m_stipple; | |
203 | } | |
204 | ||
205 | void* wxBrush::GetMaskPattern() const | |
206 | { | |
207 | wxCHECK_MSG( Ok(), NULL, wxT("invalid brush") ); | |
208 | ||
209 | return (void*)&(M_BRUSHDATA->m_maskPattern); | |
210 | } | |
211 | ||
212 | void* wxBrush::GetPixPattern() const | |
213 | { | |
214 | wxCHECK_MSG( Ok(), NULL, wxT("invalid brush") ); | |
215 | ||
216 | return (void*)&(M_BRUSHDATA->m_pixPattern); | |
217 | } | |
218 | ||
219 | void wxBrush::SetColour(const wxColour& col) | |
220 | { | |
221 | AllocExclusive(); | |
222 | M_BRUSHDATA->m_colour = col; | |
223 | } | |
224 | ||
225 | void wxBrush::SetColour(unsigned char r, unsigned char g, unsigned char b) | |
226 | { | |
227 | AllocExclusive(); | |
228 | M_BRUSHDATA->m_colour.Set(r, g, b); | |
229 | } | |
230 | ||
231 | void wxBrush::SetStyle( int style ) | |
232 | { | |
233 | AllocExclusive(); | |
234 | M_BRUSHDATA->m_style = style; | |
235 | } | |
236 | ||
237 | void wxBrush::SetStipple(const wxBitmap& stipple) | |
238 | { | |
239 | AllocExclusive(); | |
240 | ||
241 | wxCHECK_RET( stipple.Ok(), _T("invalid bitmap") ); | |
242 | wxCHECK_RET( stipple.GetWidth() == 8 && stipple.GetHeight() == 8, | |
243 | _T("stipple bitmap must be 8x8") ); | |
244 | ||
245 | M_BRUSHDATA->m_stipple = stipple; | |
246 | wxBitmapToPixPattern(stipple, &(M_BRUSHDATA->m_pixPattern), | |
247 | &(M_BRUSHDATA->m_maskPattern)); | |
248 | ||
249 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
250 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
251 | else | |
252 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
253 | } | |
254 | ||
255 | wxObjectRefData *wxBrush::CreateRefData() const | |
256 | { | |
257 | return new wxBrushRefData; | |
258 | } | |
259 | ||
260 | wxObjectRefData *wxBrush::CloneRefData(const wxObjectRefData *data) const | |
261 | { | |
262 | return new wxBrushRefData(*(wxBrushRefData *)data); | |
263 | } |