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83df96d6 JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: colour.cpp | |
3 | // Purpose: wxColour class | |
3cd0b8c5 | 4 | // Author: Julian Smart, Robert Roebling |
83df96d6 JS |
5 | // Modified by: |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
3cd0b8c5 | 8 | // Copyright: (c) Julian Smart, Robert Roebling |
83df96d6 JS |
9 | // Licence: wxWindows licence |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
83df96d6 JS |
12 | |
13 | #ifdef __GNUG__ | |
14 | #pragma implementation "colour.h" | |
15 | #endif | |
16 | ||
17 | #include "wx/gdicmn.h" | |
887dd52f | 18 | #include "wx/app.h" |
83df96d6 | 19 | |
7266b672 | 20 | #include "wx/x11/private.h" |
83df96d6 | 21 | |
3cd0b8c5 RR |
22 | //----------------------------------------------------------------------------- |
23 | // wxColour | |
24 | //----------------------------------------------------------------------------- | |
83df96d6 | 25 | |
3cd0b8c5 | 26 | class wxColourRefData: public wxObjectRefData |
83df96d6 | 27 | { |
3cd0b8c5 RR |
28 | public: |
29 | wxColourRefData() | |
30 | { | |
31 | m_color.red = 0; | |
32 | m_color.green = 0; | |
33 | m_color.blue = 0; | |
34 | m_color.pixel = 0; | |
35 | m_colormap = (WXColormap *) NULL; | |
36 | m_hasPixel = FALSE; | |
37 | } | |
d5cf34f4 JS |
38 | wxColourRefData(const wxColourRefData& data): |
39 | wxObjectRefData() | |
40 | { | |
41 | m_color = data.m_color; | |
42 | m_colormap = data.m_colormap; | |
43 | m_hasPixel = data.m_hasPixel; | |
44 | } | |
3cd0b8c5 RR |
45 | |
46 | ~wxColourRefData() | |
47 | { | |
48 | FreeColour(); | |
49 | } | |
83df96d6 | 50 | |
3cd0b8c5 RR |
51 | bool operator == (const wxColourRefData& data) const |
52 | { | |
53 | return (m_colormap == data.m_colormap && | |
54 | m_hasPixel == data.m_hasPixel && | |
55 | m_color.red == data.m_color.red && | |
56 | m_color.green == data.m_color.green && | |
57 | m_color.blue == data.m_color.blue && | |
58 | m_color.pixel == data.m_color.pixel); | |
59 | } | |
60 | ||
61 | void FreeColour(); | |
62 | void AllocColour( WXColormap cmap ); | |
63 | ||
64 | XColor m_color; | |
65 | WXColormap m_colormap; | |
66 | bool m_hasPixel; | |
67 | ||
68 | friend class wxColour; | |
69 | ||
70 | // reference counter for systems with <= 8-Bit display | |
71 | static unsigned short colMapAllocCounter[ 256 ]; | |
72 | }; | |
73 | ||
74 | unsigned short wxColourRefData::colMapAllocCounter[ 256 ] = | |
75 | { | |
76 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
77 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
78 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
79 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
80 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
81 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
82 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
83 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
84 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
85 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
87 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
88 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
89 | }; | |
90 | ||
91 | void wxColourRefData::FreeColour() | |
83df96d6 | 92 | { |
ac014163 | 93 | #if 0 |
3cd0b8c5 RR |
94 | if (m_colormap) |
95 | { | |
96 | Colormap cm = (Colormap)m_colormap; | |
97 | ||
3cd0b8c5 RR |
98 | GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) m_colormap; |
99 | if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || | |
100 | (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) | |
101 | { | |
102 | int idx = m_color.pixel; | |
103 | colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1; | |
104 | ||
105 | if (colMapAllocCounter[ idx ] == 0) | |
106 | gdk_colormap_free_colors( m_colormap, &m_color, 1 ); | |
107 | } | |
3cd0b8c5 | 108 | } |
ac014163 | 109 | #endif |
83df96d6 JS |
110 | } |
111 | ||
3cd0b8c5 | 112 | void wxColourRefData::AllocColour( WXColormap cmap ) |
83df96d6 | 113 | { |
3cd0b8c5 RR |
114 | if (m_hasPixel && (m_colormap == cmap)) |
115 | return; | |
116 | ||
117 | FreeColour(); | |
118 | ||
119 | #if 0 | |
120 | GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap; | |
121 | if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || | |
122 | (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) | |
123 | { | |
124 | m_hasPixel = gdk_colormap_alloc_color( cmap, &m_color, FALSE, TRUE ); | |
125 | int idx = m_color.pixel; | |
126 | colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] + 1; | |
127 | } | |
128 | else | |
129 | #endif | |
130 | { | |
131 | m_hasPixel = XAllocColor( wxGlobalDisplay(), (Colormap) cmap, &m_color ); | |
132 | } | |
133 | m_colormap = cmap; | |
83df96d6 JS |
134 | } |
135 | ||
3cd0b8c5 RR |
136 | //----------------------------------------------------------------------------- |
137 | ||
138 | #define M_COLDATA ((wxColourRefData *)m_refData) | |
139 | ||
140 | #define SHIFT (8*(sizeof(short int)-sizeof(char))) | |
141 | ||
142 | IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject) | |
143 | ||
144 | wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue ) | |
83df96d6 | 145 | { |
3cd0b8c5 | 146 | m_refData = new wxColourRefData(); |
0b5c0e1a JS |
147 | #if wxUSE_NANOX |
148 | M_COLDATA->m_color.red = ((unsigned short)red) ; | |
149 | M_COLDATA->m_color.green = ((unsigned short)green) ; | |
150 | M_COLDATA->m_color.blue = ((unsigned short)blue) ; | |
151 | #else | |
3cd0b8c5 RR |
152 | M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT; |
153 | M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT; | |
154 | M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT; | |
0b5c0e1a | 155 | #endif |
3cd0b8c5 | 156 | M_COLDATA->m_color.pixel = 0; |
83df96d6 JS |
157 | } |
158 | ||
3cd0b8c5 | 159 | void wxColour::InitFromName( const wxString &colourName ) |
83df96d6 | 160 | { |
3cd0b8c5 RR |
161 | wxNode *node = (wxNode *) NULL; |
162 | if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) ) | |
83df96d6 | 163 | { |
3cd0b8c5 RR |
164 | wxColour *col = (wxColour*)node->Data(); |
165 | UnRef(); | |
166 | if (col) Ref( *col ); | |
83df96d6 JS |
167 | } |
168 | else | |
169 | { | |
3cd0b8c5 | 170 | m_refData = new wxColourRefData(); |
887dd52f RR |
171 | |
172 | M_COLDATA->m_colormap = wxTheApp->GetMainColormap( wxGlobalDisplay() ); | |
173 | ||
3cd0b8c5 RR |
174 | if (!XParseColor( wxGlobalDisplay(), (Colormap) M_COLDATA->m_colormap, colourName.mb_str(), &M_COLDATA->m_color )) |
175 | { | |
176 | // VZ: asserts are good in general but this one is triggered by | |
177 | // calling wxColourDatabase::FindColour() with an | |
178 | // unrecognized colour name and this can't be avoided from the | |
179 | // user code, so don't give it here | |
180 | // | |
181 | // a better solution would be to changed code in FindColour() | |
182 | ||
183 | //wxFAIL_MSG( wxT("wxColour: couldn't find colour") ); | |
184 | ||
185 | delete m_refData; | |
186 | m_refData = (wxObjectRefData *) NULL; | |
187 | } | |
83df96d6 JS |
188 | } |
189 | } | |
190 | ||
3cd0b8c5 | 191 | wxColour::~wxColour() |
83df96d6 JS |
192 | { |
193 | } | |
194 | ||
3cd0b8c5 | 195 | bool wxColour::operator == ( const wxColour& col ) const |
83df96d6 | 196 | { |
3cd0b8c5 RR |
197 | if (m_refData == col.m_refData) return TRUE; |
198 | ||
199 | if (!m_refData || !col.m_refData) return FALSE; | |
200 | ||
201 | XColor *own = &(((wxColourRefData*)m_refData)->m_color); | |
202 | XColor *other = &(((wxColourRefData*)col.m_refData)->m_color); | |
203 | if (own->red != other->red) return FALSE; | |
204 | if (own->blue != other->blue) return FALSE; | |
205 | if (own->green != other->green) return FALSE; | |
206 | ||
207 | return TRUE; | |
83df96d6 JS |
208 | } |
209 | ||
3cd0b8c5 RR |
210 | wxObjectRefData *wxColour::CreateRefData() const |
211 | { | |
212 | return new wxColourRefData; | |
213 | } | |
83df96d6 | 214 | |
3cd0b8c5 RR |
215 | wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const |
216 | { | |
217 | return new wxColourRefData(*(wxColourRefData *)data); | |
218 | } | |
83df96d6 | 219 | |
3cd0b8c5 | 220 | void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue ) |
83df96d6 | 221 | { |
3cd0b8c5 | 222 | AllocExclusive(); |
83df96d6 | 223 | |
3cd0b8c5 | 224 | m_refData = new wxColourRefData(); |
0b5c0e1a JS |
225 | #if wxUSE_NANOX |
226 | M_COLDATA->m_color.red = ((unsigned short)red) ; | |
227 | M_COLDATA->m_color.green = ((unsigned short)green) ; | |
228 | M_COLDATA->m_color.blue = ((unsigned short)blue) ; | |
229 | #else | |
3cd0b8c5 RR |
230 | M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT; |
231 | M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT; | |
232 | M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT; | |
0b5c0e1a | 233 | #endif |
3cd0b8c5 | 234 | M_COLDATA->m_color.pixel = 0; |
83df96d6 JS |
235 | } |
236 | ||
3cd0b8c5 RR |
237 | unsigned char wxColour::Red() const |
238 | { | |
239 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); | |
240 | ||
0b5c0e1a JS |
241 | #if wxUSE_NANOX |
242 | return (unsigned char) M_COLDATA->m_color.red ; | |
243 | #else | |
3cd0b8c5 | 244 | return (unsigned char)(M_COLDATA->m_color.red >> SHIFT); |
0b5c0e1a | 245 | #endif |
3cd0b8c5 RR |
246 | } |
247 | ||
248 | unsigned char wxColour::Green() const | |
249 | { | |
250 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); | |
251 | ||
0b5c0e1a JS |
252 | #if wxUSE_NANOX |
253 | return (unsigned char) M_COLDATA->m_color.green ; | |
254 | #else | |
3cd0b8c5 | 255 | return (unsigned char)(M_COLDATA->m_color.green >> SHIFT); |
0b5c0e1a | 256 | #endif |
3cd0b8c5 RR |
257 | } |
258 | ||
259 | unsigned char wxColour::Blue() const | |
260 | { | |
261 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); | |
262 | ||
0b5c0e1a JS |
263 | #if wxUSE_NANOX |
264 | return (unsigned char) M_COLDATA->m_color.blue ; | |
265 | #else | |
3cd0b8c5 | 266 | return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT); |
0b5c0e1a | 267 | #endif |
3cd0b8c5 RR |
268 | } |
269 | ||
270 | void wxColour::CalcPixel( WXColormap cmap ) | |
271 | { | |
887dd52f RR |
272 | wxCHECK_RET( Ok(), wxT("invalid colour") ); |
273 | ||
274 | wxCHECK_RET( cmap, wxT("invalid colormap") ); | |
3cd0b8c5 RR |
275 | |
276 | M_COLDATA->AllocColour( cmap ); | |
277 | } | |
278 | ||
279 | unsigned long wxColour::GetPixel() const | |
280 | { | |
281 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); | |
282 | ||
283 | return M_COLDATA->m_color.pixel; | |
284 | } | |
285 | ||
286 | WXColor *wxColour::GetColor() const | |
287 | { | |
288 | wxCHECK_MSG( Ok(), (WXColor *) NULL, wxT("invalid colour") ); | |
289 | ||
290 | return (WXColor*) &M_COLDATA->m_color; | |
83df96d6 | 291 | } |