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4bb6408c JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: palette.cpp | |
3 | // Purpose: wxPalette | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
bf6c2b35 | 9 | // Licence: wxWindows licence |
4bb6408c JS |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
f97c9854 JS |
12 | /* |
13 | * Colour map | |
14 | * | |
15 | * When constructed with the default constructor, we start from | |
16 | * the wxApp::GetMainColormap, allocating additional read-only cells | |
17 | * in Create(). The cells are freed on the next call to Create() | |
18 | * or when the destructor is called. | |
19 | */ | |
bf6c2b35 | 20 | |
f97c9854 JS |
21 | /* Wolfram Gloger <u7y22ab@sunmail.lrz-muenchen.de> |
22 | I have implemented basic colormap support for the X11 versions of | |
23 | wxWindows, notably wxPalette::Create(). The way I did it is to | |
24 | allocate additional read-only color cells in the default colormap. In | |
25 | general you will get arbitrary pixel values assigned to these new | |
26 | cells and therefore I added a method wxColourMap::TransferBitmap() | |
27 | which maps the pixel values 0..n to the real ones obtained with | |
28 | Create(). This is only implemented for the popular case of 8-bit | |
29 | depth. | |
30 | ||
31 | Allocating read-write color cells would involve installing a private | |
32 | X11 colormap for a particular window, and AFAIK this is not | |
33 | recommended; only the window manager should do this... Also, it is | |
34 | not the functionality that wxPalette::Create() aims to provide. | |
35 | */ | |
36 | ||
4bb6408c JS |
37 | #ifdef __GNUG__ |
38 | #pragma implementation "palette.h" | |
39 | #endif | |
40 | ||
41 | #include "wx/palette.h" | |
f97c9854 JS |
42 | #include "wx/window.h" |
43 | #include "wx/app.h" | |
44 | #include "wx/utils.h" | |
45 | ||
338dd992 JJ |
46 | #ifdef __VMS__ |
47 | #pragma message disable nosimpint | |
48 | #endif | |
f97c9854 | 49 | #include <Xm/Xm.h> |
338dd992 JJ |
50 | #ifdef __VMS__ |
51 | #pragma message enable nosimpint | |
52 | #endif | |
f97c9854 | 53 | #include "wx/motif/private.h" |
4bb6408c | 54 | |
4bb6408c | 55 | IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject) |
f97c9854 | 56 | IMPLEMENT_DYNAMIC_CLASS(wxXPalette, wxObject) |
4bb6408c JS |
57 | |
58 | /* | |
2d120f83 JS |
59 | * Palette |
60 | * | |
61 | */ | |
4bb6408c | 62 | |
f97c9854 JS |
63 | wxXPalette::wxXPalette() |
64 | { | |
65 | m_cmap = (WXColormap) 0; | |
66 | m_pix_array_n = 0; | |
67 | m_pix_array = (unsigned long*) 0; | |
68 | m_display = (WXDisplay*) 0; | |
69 | m_destroyable = FALSE; | |
70 | } | |
71 | ||
4bb6408c JS |
72 | wxPaletteRefData::wxPaletteRefData() |
73 | { | |
4bb6408c JS |
74 | } |
75 | ||
76 | wxPaletteRefData::~wxPaletteRefData() | |
77 | { | |
2d120f83 | 78 | Display *display = (Display*) NULL; |
bf6c2b35 | 79 | |
2d120f83 | 80 | wxNode *node, *next; |
bf6c2b35 | 81 | |
2d120f83 JS |
82 | for (node = m_palettes.First(); node; node = next) { |
83 | wxXPalette *c = (wxXPalette *)node->Data(); | |
84 | unsigned long *pix_array = c->m_pix_array; | |
85 | Colormap cmap = (Colormap) c->m_cmap; | |
86 | bool destroyable = c->m_destroyable; | |
87 | int pix_array_n = c->m_pix_array_n; | |
88 | display = (Display*) c->m_display; | |
bf6c2b35 | 89 | |
2d120f83 JS |
90 | if (pix_array_n > 0) |
91 | { | |
92 | // XFreeColors(display, cmap, pix_array, pix_array_n, 0); | |
93 | // Be careful not to free '0' pixels... | |
94 | int i, j; | |
95 | for(i=j=0; i<pix_array_n; i=j) { | |
96 | while(j<pix_array_n && pix_array[j]!=0) j++; | |
97 | if(j > i) XFreeColors(display, cmap, &pix_array[i], j-i, 0); | |
98 | while(j<pix_array_n && pix_array[j]==0) j++; | |
99 | } | |
100 | delete [] pix_array; | |
101 | } | |
bf6c2b35 | 102 | |
2d120f83 JS |
103 | if (destroyable) |
104 | XFreeColormap(display, cmap); | |
bf6c2b35 | 105 | |
2d120f83 JS |
106 | next = node->Next(); |
107 | m_palettes.DeleteNode(node); | |
108 | delete c; | |
f97c9854 | 109 | } |
4bb6408c JS |
110 | } |
111 | ||
112 | wxPalette::wxPalette() | |
113 | { | |
114 | } | |
115 | ||
116 | wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue) | |
117 | { | |
118 | Create(n, red, green, blue); | |
119 | } | |
120 | ||
121 | wxPalette::~wxPalette() | |
122 | { | |
123 | } | |
124 | ||
125 | bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue) | |
126 | { | |
2d120f83 | 127 | UnRef(); |
bf6c2b35 | 128 | |
2d120f83 JS |
129 | if (!n) { |
130 | return FALSE; | |
131 | } | |
bf6c2b35 | 132 | |
2d120f83 | 133 | m_refData = new wxPaletteRefData; |
bf6c2b35 | 134 | |
2d120f83 JS |
135 | XColor xcol; |
136 | Display* display = (Display*) wxGetDisplay(); | |
bf6c2b35 | 137 | |
2d120f83 JS |
138 | unsigned long *pix_array; |
139 | Colormap cmap; | |
140 | int pix_array_n; | |
bf6c2b35 | 141 | |
2d120f83 | 142 | cmap = (Colormap) wxTheApp->GetMainColormap(display); |
bf6c2b35 | 143 | |
2d120f83 JS |
144 | pix_array = new unsigned long[n]; |
145 | if (!pix_array) | |
146 | return FALSE; | |
bf6c2b35 | 147 | |
2d120f83 JS |
148 | pix_array_n = n; |
149 | xcol.flags = DoRed | DoGreen | DoBlue; | |
150 | for(int i = 0; i < n; i++) { | |
151 | xcol.red = (unsigned short)red[i] << 8; | |
152 | xcol.green = (unsigned short)green[i] << 8; | |
153 | xcol.blue = (unsigned short)blue[i] << 8; | |
154 | pix_array[i] = (XAllocColor(display, cmap, &xcol) == 0) ? 0 : xcol.pixel; | |
155 | } | |
bf6c2b35 | 156 | |
2d120f83 | 157 | wxXPalette *c = new wxXPalette; |
bf6c2b35 | 158 | |
2d120f83 JS |
159 | c->m_pix_array_n = pix_array_n; |
160 | c->m_pix_array = pix_array; | |
161 | c->m_cmap = (WXColormap) cmap; | |
162 | c->m_display = (WXDisplay*) display; | |
163 | c->m_destroyable = FALSE; | |
164 | M_PALETTEDATA->m_palettes.Append(c); | |
bf6c2b35 | 165 | |
2d120f83 | 166 | return TRUE; |
4bb6408c JS |
167 | } |
168 | ||
169 | int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const | |
170 | { | |
171 | if ( !m_refData ) | |
2d120f83 | 172 | return FALSE; |
bf6c2b35 | 173 | |
4bb6408c JS |
174 | // TODO |
175 | return FALSE; | |
176 | } | |
177 | ||
af111fc3 | 178 | bool wxPalette::GetRGB(int index, unsigned char *WXUNUSED(red), unsigned char *WXUNUSED(green), unsigned char *WXUNUSED(blue)) const |
4bb6408c JS |
179 | { |
180 | if ( !m_refData ) | |
2d120f83 | 181 | return FALSE; |
bf6c2b35 | 182 | |
4bb6408c JS |
183 | if (index < 0 || index > 255) |
184 | return FALSE; | |
bf6c2b35 | 185 | |
4bb6408c JS |
186 | // TODO |
187 | return FALSE; | |
188 | } | |
189 | ||
f97c9854 JS |
190 | WXColormap wxPalette::GetXColormap(WXDisplay* display) const |
191 | { | |
192 | if (!M_PALETTEDATA || (M_PALETTEDATA->m_palettes.Number() == 0)) | |
193 | return wxTheApp->GetMainColormap(display); | |
bf6c2b35 | 194 | |
f97c9854 JS |
195 | wxNode* node = M_PALETTEDATA->m_palettes.First(); |
196 | if (!display && node) | |
197 | { | |
198 | wxXPalette* p = (wxXPalette*) node->Data(); | |
199 | return p->m_cmap; | |
200 | } | |
201 | while (node) | |
202 | { | |
203 | wxXPalette* p = (wxXPalette*) node->Data(); | |
204 | if (p->m_display == display) | |
205 | return p->m_cmap; | |
bf6c2b35 | 206 | |
f97c9854 JS |
207 | node = node->Next(); |
208 | } | |
bf6c2b35 | 209 | |
f97c9854 JS |
210 | /* Make a new one: */ |
211 | wxXPalette *c = new wxXPalette; | |
212 | wxXPalette *first = (wxXPalette *)M_PALETTEDATA->m_palettes.First()->Data(); | |
213 | XColor xcol; | |
214 | int pix_array_n = first->m_pix_array_n; | |
bf6c2b35 | 215 | |
f97c9854 JS |
216 | c->m_pix_array_n = pix_array_n; |
217 | c->m_pix_array = new unsigned long[pix_array_n]; | |
218 | c->m_display = display; | |
219 | c->m_cmap = wxTheApp->GetMainColormap(display); | |
220 | c->m_destroyable = FALSE; | |
bf6c2b35 | 221 | |
f97c9854 JS |
222 | xcol.flags = DoRed | DoGreen | DoBlue; |
223 | int i; | |
224 | for (i = 0; i < pix_array_n; i++) | |
225 | { | |
226 | xcol.pixel = first->m_pix_array[i]; | |
227 | XQueryColor((Display*) first->m_display, (Colormap) first->m_cmap, &xcol); | |
228 | c->m_pix_array[i] = | |
229 | (XAllocColor((Display*) display, (Colormap) c->m_cmap, &xcol) == 0) ? 0 : xcol.pixel; | |
230 | } | |
bf6c2b35 | 231 | |
f97c9854 | 232 | // wxPalette* nonConstThis = (wxPalette*) this; |
bf6c2b35 | 233 | |
f97c9854 | 234 | M_PALETTEDATA->m_palettes.Append(c); |
bf6c2b35 | 235 | |
f97c9854 JS |
236 | return c->m_cmap; |
237 | } | |
238 | ||
239 | bool wxPalette::TransferBitmap(void *data, int depth, int size) | |
240 | { | |
2d120f83 JS |
241 | switch(depth) { |
242 | case 8: | |
243 | { | |
244 | unsigned char *uptr = (unsigned char *)data; | |
245 | int pix_array_n; | |
246 | unsigned long *pix_array = GetXPixArray((Display*) wxGetDisplay(), &pix_array_n); | |
247 | while(size-- > 0) | |
248 | { | |
249 | if((int)*uptr < pix_array_n) | |
250 | *uptr = (unsigned char)pix_array[*uptr]; | |
251 | uptr++; | |
252 | } | |
bf6c2b35 | 253 | |
2d120f83 JS |
254 | return TRUE; |
255 | } | |
256 | default: | |
257 | return FALSE; | |
f97c9854 | 258 | } |
f97c9854 JS |
259 | } |
260 | ||
261 | bool wxPalette::TransferBitmap8(unsigned char *data, unsigned long sz, | |
2d120f83 | 262 | void *dest, unsigned int bpp) |
f97c9854 | 263 | { |
2d120f83 JS |
264 | int pix_array_n; |
265 | unsigned long *pix_array = GetXPixArray((Display*) wxGetDisplay(), &pix_array_n); | |
f97c9854 JS |
266 | switch(bpp) { |
267 | case 8: { | |
2d120f83 JS |
268 | unsigned char *dptr = (unsigned char *)dest; |
269 | while(sz-- > 0) { | |
270 | if((int)*data < pix_array_n) | |
271 | *dptr = (unsigned char)pix_array[*data]; | |
272 | data++; | |
273 | dptr++; | |
274 | } | |
275 | break; | |
276 | } | |
f97c9854 | 277 | case 16: { |
2d120f83 JS |
278 | unsigned short *dptr = (unsigned short *)dest; |
279 | while(sz-- > 0) { | |
280 | if((int)*data < pix_array_n) | |
281 | *dptr = (unsigned short)pix_array[*data]; | |
282 | data++; | |
283 | dptr++; | |
284 | } | |
285 | break; | |
286 | } | |
f97c9854 | 287 | case 24: { |
2d120f83 JS |
288 | struct rgb24 { unsigned char r, g, b; } *dptr = (struct rgb24 *)dest; |
289 | while(sz-- > 0) { | |
290 | if((int)*data < pix_array_n) { | |
291 | dptr->r = pix_array[*data] & 0xFF; | |
292 | dptr->g = (pix_array[*data] >> 8) & 0xFF; | |
293 | dptr->b = (pix_array[*data] >> 16) & 0xFF; | |
294 | } | |
295 | data++; | |
296 | dptr++; | |
f97c9854 | 297 | } |
2d120f83 JS |
298 | break; |
299 | } | |
f97c9854 | 300 | case 32: { |
2d120f83 JS |
301 | unsigned long *dptr = (unsigned long *)dest; |
302 | while(sz-- > 0) { | |
303 | if((int)*data < pix_array_n) | |
304 | *dptr = pix_array[*data]; | |
305 | data++; | |
306 | dptr++; | |
307 | } | |
308 | break; | |
309 | } | |
f97c9854 | 310 | default: |
2d120f83 | 311 | return FALSE; |
f97c9854 JS |
312 | } |
313 | return TRUE; | |
314 | } | |
315 | ||
316 | unsigned long *wxPalette::GetXPixArray(WXDisplay *display, int *n) | |
317 | { | |
318 | if (!M_PALETTEDATA) | |
319 | return (unsigned long*) 0; | |
320 | wxNode *node; | |
bf6c2b35 | 321 | |
f97c9854 JS |
322 | for (node = M_PALETTEDATA->m_palettes.First(); node; node = node->Next()) |
323 | { | |
324 | wxXPalette *c = (wxXPalette *)node->Data(); | |
325 | if (c->m_display == display) | |
326 | { | |
327 | if (n) | |
328 | *n = c->m_pix_array_n; | |
329 | return c->m_pix_array; | |
330 | } | |
331 | } | |
bf6c2b35 | 332 | |
f97c9854 JS |
333 | /* Not found; call GetXColormap, which will create it, then this again */ |
334 | if (GetXColormap(display)) | |
335 | return GetXPixArray(display, n); | |
336 | else | |
337 | return (unsigned long*) 0; | |
338 | } | |
339 | ||
340 | void wxPalette::PutXColormap(WXDisplay* display, WXColormap cm, bool dp) | |
341 | { | |
342 | UnRef(); | |
bf6c2b35 | 343 | |
f97c9854 | 344 | m_refData = new wxPaletteRefData; |
bf6c2b35 | 345 | |
f97c9854 | 346 | wxXPalette *c = new wxXPalette; |
bf6c2b35 | 347 | |
f97c9854 JS |
348 | c->m_pix_array_n = 0; |
349 | c->m_pix_array = (unsigned long*) NULL; | |
350 | c->m_display = display; | |
351 | c->m_cmap = cm; | |
352 | c->m_destroyable = dp; | |
bf6c2b35 | 353 | |
f97c9854 JS |
354 | M_PALETTEDATA->m_palettes.Append(c); |
355 | } | |
4bb6408c | 356 |