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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: colour.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
dbf858b5 RR |
5 | // Id: $Id$ |
6 | // Copyright: (c) 1998 Robert Roebling | |
8bbe427f | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
10 | ||
11 | #ifdef __GNUG__ | |
12 | #pragma implementation "colour.h" | |
13 | #endif | |
14 | ||
15 | #include "wx/gdicmn.h" | |
16 | ||
071a2d78 | 17 | #include <gdk/gdk.h> |
307fc8d5 | 18 | #include <gdk/gdkx.h> |
071a2d78 | 19 | #include <gdk/gdkprivate.h> |
c801d85f KB |
20 | |
21 | //----------------------------------------------------------------------------- | |
22 | // wxColour | |
23 | //----------------------------------------------------------------------------- | |
24 | ||
25 | class wxColourRefData: public wxObjectRefData | |
26 | { | |
47c93b63 | 27 | public: |
c89f5c02 RR |
28 | wxColourRefData() |
29 | { | |
30 | m_color.red = 0; | |
31 | m_color.green = 0; | |
32 | m_color.blue = 0; | |
33 | m_color.pixel = 0; | |
34 | m_colormap = (GdkColormap *) NULL; | |
35 | m_hasPixel = FALSE; | |
36 | } | |
37 | ||
dbb846c6 VZ |
38 | wxColourRefData(const wxColourRefData& data) |
39 | { | |
40 | m_color = data.m_color; | |
41 | m_colormap = data.m_colormap; | |
42 | m_hasPixel = data.m_hasPixel; | |
43 | } | |
44 | ||
c89f5c02 RR |
45 | ~wxColourRefData() |
46 | { | |
47 | FreeColour(); | |
48 | } | |
15248e43 | 49 | |
c89f5c02 RR |
50 | bool operator == (const wxColourRefData& data) const |
51 | { | |
52 | return (m_colormap == data.m_colormap && | |
53 | m_hasPixel == data.m_hasPixel && | |
54 | m_color.red == data.m_color.red && | |
55 | m_color.green == data.m_color.green && | |
56 | m_color.blue == data.m_color.blue && | |
57 | m_color.pixel == data.m_color.pixel); | |
58 | } | |
59 | ||
68dda785 | 60 | void FreeColour(); |
d13fd3e4 | 61 | void AllocColour( GdkColormap* cmap ); |
8bbe427f | 62 | |
c801d85f KB |
63 | GdkColor m_color; |
64 | GdkColormap *m_colormap; | |
65 | bool m_hasPixel; | |
8bbe427f | 66 | |
f6bcfd97 | 67 | friend class wxColour; |
d13fd3e4 VZ |
68 | |
69 | // reference counter for systems with <= 8-Bit display | |
70 | static gushort colMapAllocCounter[ 256 ]; | |
71 | }; | |
72 | ||
73 | gushort wxColourRefData::colMapAllocCounter[ 256 ] = | |
74 | { | |
75 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
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 | |
c801d85f KB |
88 | }; |
89 | ||
68dda785 | 90 | void wxColourRefData::FreeColour() |
c801d85f | 91 | { |
47c93b63 RR |
92 | if (m_colormap) |
93 | { | |
94 | #ifdef __WXGTK20__ | |
95 | if ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || | |
96 | (m_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) | |
97 | #else | |
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 | #endif | |
102 | { | |
d13fd3e4 VZ |
103 | int idx = m_color.pixel; |
104 | colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1; | |
105 | ||
106 | if (colMapAllocCounter[ idx ] == 0) | |
47c93b63 RR |
107 | gdk_colormap_free_colors( m_colormap, &m_color, 1 ); |
108 | } | |
109 | } | |
ff7b1510 | 110 | } |
c801d85f | 111 | |
d13fd3e4 VZ |
112 | void wxColourRefData::AllocColour( GdkColormap *cmap ) |
113 | { | |
114 | if (m_hasPixel && (m_colormap == cmap)) | |
115 | return; | |
116 | ||
117 | FreeColour(); | |
118 | ||
119 | #ifdef __WXGTK20__ | |
31c8af3a VZ |
120 | if ( (cmap->visual->type == GDK_VISUAL_GRAYSCALE) || |
121 | (cmap->visual->type == GDK_VISUAL_PSEUDO_COLOR) ) | |
d13fd3e4 VZ |
122 | #else |
123 | GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap; | |
124 | if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) || | |
125 | (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR)) | |
126 | #endif | |
127 | { | |
128 | m_hasPixel = gdk_colormap_alloc_color( cmap, &m_color, FALSE, TRUE ); | |
129 | int idx = m_color.pixel; | |
130 | colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] + 1; | |
131 | } | |
132 | else | |
133 | { | |
134 | m_hasPixel = gdk_color_alloc( cmap, &m_color ); | |
135 | } | |
136 | m_colormap = cmap; | |
137 | } | |
138 | ||
c801d85f KB |
139 | //----------------------------------------------------------------------------- |
140 | ||
141 | #define M_COLDATA ((wxColourRefData *)m_refData) | |
142 | ||
143 | #define SHIFT (8*(sizeof(short int)-sizeof(char))) | |
144 | ||
145 | IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject) | |
146 | ||
4b5f3fe6 | 147 | wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue ) |
c801d85f | 148 | { |
1ecc4d80 RR |
149 | m_refData = new wxColourRefData(); |
150 | M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT; | |
151 | M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT; | |
152 | M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT; | |
153 | M_COLDATA->m_color.pixel = 0; | |
ff7b1510 | 154 | } |
8bbe427f | 155 | |
68dda785 | 156 | void wxColour::InitFromName( const wxString &colourName ) |
c801d85f | 157 | { |
1ecc4d80 RR |
158 | wxNode *node = (wxNode *) NULL; |
159 | if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) ) | |
c801d85f | 160 | { |
1ecc4d80 RR |
161 | wxColour *col = (wxColour*)node->Data(); |
162 | UnRef(); | |
163 | if (col) Ref( *col ); | |
164 | } | |
165 | else | |
166 | { | |
167 | m_refData = new wxColourRefData(); | |
887dd52f | 168 | |
93c5dd39 | 169 | if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color )) |
1ecc4d80 | 170 | { |
15248e43 VZ |
171 | // VZ: asserts are good in general but this one is triggered by |
172 | // calling wxColourDatabase::FindColour() with an | |
173 | // unrecognized colour name and this can't be avoided from the | |
174 | // user code, so don't give it here | |
175 | // | |
176 | // a better solution would be to changed code in FindColour() | |
177 | ||
178 | //wxFAIL_MSG( wxT("wxColour: couldn't find colour") ); | |
179 | ||
1ecc4d80 RR |
180 | delete m_refData; |
181 | m_refData = (wxObjectRefData *) NULL; | |
182 | } | |
ff7b1510 | 183 | } |
ff7b1510 | 184 | } |
c801d85f | 185 | |
68dda785 | 186 | wxColour::~wxColour() |
c801d85f | 187 | { |
ff7b1510 | 188 | } |
c801d85f | 189 | |
33b64e6f | 190 | bool wxColour::operator == ( const wxColour& col ) const |
8bbe427f | 191 | { |
2b62ab35 | 192 | if (m_refData == col.m_refData) return TRUE; |
15248e43 | 193 | |
c89f5c02 | 194 | if (!m_refData || !col.m_refData) return FALSE; |
15248e43 | 195 | |
2b62ab35 RR |
196 | GdkColor *own = &(((wxColourRefData*)m_refData)->m_color); |
197 | GdkColor *other = &(((wxColourRefData*)col.m_refData)->m_color); | |
198 | if (own->red != other->red) return FALSE; | |
199 | if (own->blue != other->blue) return FALSE; | |
200 | if (own->green != other->green) return FALSE; | |
15248e43 | 201 | |
2b62ab35 | 202 | return TRUE; |
ff7b1510 | 203 | } |
c801d85f | 204 | |
c89f5c02 RR |
205 | wxObjectRefData *wxColour::CreateRefData() const |
206 | { | |
207 | return new wxColourRefData; | |
208 | } | |
209 | ||
210 | wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const | |
8bbe427f | 211 | { |
c89f5c02 | 212 | return new wxColourRefData(*(wxColourRefData *)data); |
ff7b1510 | 213 | } |
c801d85f | 214 | |
4b5f3fe6 | 215 | void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue ) |
c801d85f | 216 | { |
c89f5c02 RR |
217 | AllocExclusive(); |
218 | ||
1ecc4d80 RR |
219 | m_refData = new wxColourRefData(); |
220 | M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT; | |
221 | M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT; | |
222 | M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT; | |
223 | M_COLDATA->m_color.pixel = 0; | |
ff7b1510 | 224 | } |
c801d85f | 225 | |
68dda785 | 226 | unsigned char wxColour::Red() const |
c801d85f | 227 | { |
223d09f6 | 228 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 229 | |
1ecc4d80 | 230 | return (unsigned char)(M_COLDATA->m_color.red >> SHIFT); |
ff7b1510 | 231 | } |
c801d85f | 232 | |
68dda785 | 233 | unsigned char wxColour::Green() const |
c801d85f | 234 | { |
223d09f6 | 235 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 236 | |
1ecc4d80 | 237 | return (unsigned char)(M_COLDATA->m_color.green >> SHIFT); |
ff7b1510 | 238 | } |
c801d85f | 239 | |
68dda785 | 240 | unsigned char wxColour::Blue() const |
c801d85f | 241 | { |
223d09f6 | 242 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 243 | |
1ecc4d80 | 244 | return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT); |
ff7b1510 | 245 | } |
c801d85f | 246 | |
c801d85f KB |
247 | void wxColour::CalcPixel( GdkColormap *cmap ) |
248 | { | |
1ecc4d80 | 249 | if (!Ok()) return; |
8bbe427f | 250 | |
d13fd3e4 | 251 | M_COLDATA->AllocColour( cmap ); |
ff7b1510 | 252 | } |
c801d85f | 253 | |
68dda785 | 254 | int wxColour::GetPixel() const |
c801d85f | 255 | { |
223d09f6 | 256 | wxCHECK_MSG( Ok(), 0, wxT("invalid colour") ); |
8bbe427f | 257 | |
1ecc4d80 | 258 | return M_COLDATA->m_color.pixel; |
ff7b1510 | 259 | } |
c801d85f | 260 | |
68dda785 | 261 | GdkColor *wxColour::GetColor() const |
c801d85f | 262 | { |
223d09f6 | 263 | wxCHECK_MSG( Ok(), (GdkColor *) NULL, wxT("invalid colour") ); |
8bbe427f | 264 | |
1ecc4d80 | 265 | return &M_COLDATA->m_color; |
ff7b1510 | 266 | } |
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267 | |
268 |