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usp10: Document ScriptFreeCache, ScriptGetFontProperties, ScriptStringFree and Script...
[wine/multimedia.git] / dlls / usp10 / usp10.c
blob68110e5f65dcd615a37339ad1f1eed440627e54e
1 /*
2 * Implementation of Uniscribe Script Processor (usp10.dll)
3 *
4 * Copyright 2005 Steven Edwards for CodeWeavers
5 * Copyright 2006 Hans Leidekker
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 *
21 * Notes:
22 * Uniscribe allows for processing of complex scripts such as joining
23 * and filtering characters and bi-directional text with custom line breaks.
24 */
25
26 #include <stdarg.h>
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "wingdi.h"
31 #include "winuser.h"
32 #include "winnls.h"
33 #include "usp10.h"
34
35 #include "wine/debug.h"
36 #include "wine/unicode.h"
37
38 /**
39 * some documentation here:
40 * http://www.microsoft.com/typography/developers/uniscribe/uniscribe.htm
41 */
42
43 WINE_DEFAULT_DEBUG_CHANNEL(uniscribe);
44
45 static const SCRIPT_PROPERTIES props[] =
46 {
47 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
48 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
49 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
50 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
51 { 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
52 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
53 { 9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
54 { 8, 0, 0, 0, 0, 161, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
55 { 25, 0, 0, 0, 0, 204, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
56 { 43, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
57 { 55, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
58 { 42, 0, 0, 0, 0, 163, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
59 { 9, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
60 { 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0 },
61 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
62 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
63 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
64 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
65 { 18, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
66 { 18, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
67 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
68 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
69 { 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
70 { 9, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0 },
71 { 13, 0, 1, 0, 1, 177, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
72 { 13, 0, 1, 0, 0, 177, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
73 { 1, 0, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 1, 1, 0 },
74 { 1, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
75 { 41, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
76 { 32, 1, 1, 0, 0, 178, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
77 { 90, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0 },
78 { 30, 0, 1, 1, 1, 222, 0, 0, 1, 0, 1, 0, 0, 0, 1 },
79 { 30, 1, 1, 0, 0, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
80 { 30, 0, 1, 0, 0, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
81 { 57, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
82 { 57, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
83 { 73, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
84 { 73, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
85 { 69, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
86 { 69, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
87 { 69, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
88 { 70, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
89 { 70, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
90 { 71, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
91 { 71, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
92 { 72, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
93 { 72, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
94 { 74, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
95 { 74, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
96 { 75, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
97 { 75, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
98 { 76, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
99 { 76, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
100 { 81, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0 },
101 { 81, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
102 { 84, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0 },
103 { 84, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
104 { 83, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
105 { 83, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
106 { 85, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 },
107 { 85, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
108 { 80, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
109 { 80, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
110 { 94, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
111 { 94, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
112 { 101, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
113 { 93, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
114 { 92, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
115 { 9, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
116 { 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
117 { 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
118 { 91, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
119 { 9, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0 },
120 { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
121 };
122
123 static const SCRIPT_PROPERTIES *script_props[] =
124 {
125 &props[0], &props[1], &props[2], &props[3],
126 &props[4], &props[5], &props[6], &props[7],
127 &props[8], &props[9], &props[11], &props[12],
128 &props[13], &props[14], &props[15], &props[16],
129 &props[17], &props[18], &props[19], &props[20],
130 &props[21], &props[22], &props[23], &props[24],
131 &props[25], &props[26], &props[27], &props[28],
132 &props[29], &props[30], &props[31], &props[32],
133 &props[33], &props[34], &props[35], &props[36],
134 &props[37], &props[38], &props[39], &props[40],
135 &props[41], &props[42], &props[43], &props[44],
136 &props[45], &props[46], &props[47], &props[48],
137 &props[49], &props[50], &props[51], &props[52],
138 &props[53], &props[54], &props[55], &props[56],
139 &props[57], &props[58], &props[59], &props[60],
140 &props[61], &props[62], &props[63], &props[64],
141 &props[65], &props[66], &props[67], &props[68],
142 &props[69], &props[70], &props[71], &props[72],
143 &props[73]
144 };
145
146 typedef struct {
147 HDC hdc;
148 } ScriptCache;
149
150 typedef struct {
151 int numGlyphs;
152 WORD* glyphs;
153 WORD* pwLogClust;
154 int* piAdvance;
155 SCRIPT_VISATTR* psva;
156 GOFFSET* pGoffset;
157 ABC* abc;
158 } StringGlyphs;
159
160 typedef struct {
161 BOOL invalid;
162 HDC hdc;
163 int cItems;
164 int cMaxGlyphs;
165 SCRIPT_ITEM* pItem;
166 int numItems;
167 StringGlyphs* glyphs;
168 SCRIPT_LOGATTR* logattrs;
169 SIZE* sz;
170 } StringAnalysis;
171
172 static HRESULT get_script_cache(const HDC hdc, SCRIPT_CACHE *psc)
173 {
174 if (!psc) return E_INVALIDARG;
175 if (!*psc)
176 {
177 if (!hdc) return E_PENDING;
178 if (!(*psc = HeapAlloc(GetProcessHeap(), 0, sizeof(ScriptCache))))
179 return E_OUTOFMEMORY;
180 ((ScriptCache *)*psc)->hdc = hdc;
181 }
182 return S_OK;
183 }
184
185 /***********************************************************************
186 * DllMain
187 *
188 */
189 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
190 {
191 switch(fdwReason) {
192 case DLL_PROCESS_ATTACH:
193 DisableThreadLibraryCalls(hInstDLL);
194 break;
195 case DLL_PROCESS_DETACH:
196 break;
197 }
198 return TRUE;
199 }
200
201 /***********************************************************************
202 * ScriptFreeCache (USP10.@)
203 *
204 * Free a script cache.
205 *
206 * PARAMS
207 * psc [I/O] Script cache.
208 *
209 * RETURNS
210 * Success: S_OK
211 * Failure: Non-zero HRESULT value.
212 */
213 HRESULT WINAPI ScriptFreeCache(SCRIPT_CACHE *psc)
214 {
215 TRACE("%p\n", psc);
216
217 if (psc)
218 {
219 HeapFree(GetProcessHeap(), 0, *psc);
220 *psc = NULL;
221 }
222 return S_OK;
223 }
224
225 /***********************************************************************
226 * ScriptGetProperties (USP10.@)
227 *
228 * Retrieve a list of script properties.
229 *
230 * PARAMS
231 * props [I] Pointer to an array of SCRIPT_PROPERTIES pointers.
232 * num [I] Pointer to the number of scripts.
233 *
234 * RETURNS
235 * Success: S_OK
236 * Failure: Non-zero HRESULT value.
237 *
238 * NOTES
239 * Behaviour matches WinXP.
240 */
241 HRESULT WINAPI ScriptGetProperties(const SCRIPT_PROPERTIES ***props, int *num)
242 {
243 TRACE("(%p,%p)\n", props, num);
244
245 if (!props && !num) return E_INVALIDARG;
246
247 if (num) *num = sizeof(script_props)/sizeof(script_props[0]);
248 if (props) *props = script_props;
249
250 return S_OK;
251 }
252
253 /***********************************************************************
254 * ScriptGetFontProperties (USP10.@)
255 *
256 * Get information on special glyphs.
257 *
258 * PARAMS
259 * hdc [I] Device context.
260 * psc [I/O] Opaque pointer to a script cache.
261 * sfp [O] Font properties structure.
262 */
263 HRESULT WINAPI ScriptGetFontProperties(HDC hdc, SCRIPT_CACHE *psc, SCRIPT_FONTPROPERTIES *sfp)
264 {
265 HRESULT hr;
266 TEXTMETRICW ptm;
267
268 TRACE("%p,%p,%p\n", hdc, psc, sfp);
269
270 if (!sfp) return E_INVALIDARG;
271 if ((hr = get_script_cache(hdc, psc))) return hr;
272
273 if (sfp->cBytes != sizeof(SCRIPT_FONTPROPERTIES))
274 return E_INVALIDARG;
275
276 /* return something sensible? */
277 sfp->wgBlank = 0;
278 if (GetTextMetricsW(((ScriptCache *)*psc)->hdc, &ptm))
279 sfp->wgDefault = ptm.tmDefaultChar;
280 else
281 sfp->wgDefault = 0;
282 sfp->wgInvalid = 0;
283 sfp->wgKashida = 0xffff;
284 sfp->iKashidaWidth = 0;
285
286 return S_OK;
287 }
288
289 /***********************************************************************
290 * ScriptRecordDigitSubstitution (USP10.@)
291 *
292 * Record digit substitution settings for a given locale.
293 *
294 * PARAMS
295 * locale [I] Locale identifier.
296 * sds [I] Structure to record substitution settings.
297 *
298 * RETURNS
299 * Success: S_OK
300 * Failure: E_POINTER if sds is NULL, E_INVALIDARG otherwise.
301 *
302 * SEE ALSO
303 * http://blogs.msdn.com/michkap/archive/2006/02/22/536877.aspx
304 */
305 HRESULT WINAPI ScriptRecordDigitSubstitution(LCID locale, SCRIPT_DIGITSUBSTITUTE *sds)
306 {
307 DWORD plgid, sub;
308
309 TRACE("0x%x, %p\n", locale, sds);
310
311 /* This implementation appears to be correct for all languages, but it's
312 * not clear if sds->DigitSubstitute is ever set to anything except
313 * CONTEXT or NONE in reality */
314
315 if (!sds) return E_POINTER;
316
317 locale = ConvertDefaultLocale(locale);
318
319 if (!IsValidLocale(locale, LCID_INSTALLED))
320 return E_INVALIDARG;
321
322 plgid = PRIMARYLANGID(LANGIDFROMLCID(locale));
323 sds->TraditionalDigitLanguage = plgid;
324
325 if (plgid == LANG_ARABIC || plgid == LANG_FARSI)
326 sds->NationalDigitLanguage = plgid;
327 else
328 sds->NationalDigitLanguage = LANG_ENGLISH;
329
330 if (!GetLocaleInfoW(locale, LOCALE_IDIGITSUBSTITUTION | LOCALE_RETURN_NUMBER,
331 (LPWSTR)&sub, sizeof(sub)/sizeof(WCHAR))) return E_INVALIDARG;
332
333 switch (sub)
334 {
335 case 0:
336 if (plgid == LANG_ARABIC || plgid == LANG_FARSI)
337 sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_CONTEXT;
338 else
339 sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NONE;
340 break;
341 case 1:
342 sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NONE;
343 break;
344 case 2:
345 sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_NATIONAL;
346 break;
347 default:
348 sds->DigitSubstitute = SCRIPT_DIGITSUBSTITUTE_TRADITIONAL;
349 break;
350 }
351
352 sds->dwReserved = 0;
353 return S_OK;
354 }
355
356 /***********************************************************************
357 * ScriptApplyDigitSubstitution (USP10.@)
358 *
359 * Apply digit substitution settings.
360 *
361 * PARAMS
362 * sds [I] Structure with recorded substitution settings.
363 * sc [I] Script control structure.
364 * ss [I] Script state structure.
365 *
366 * RETURNS
367 * Success: S_OK
368 * Failure: E_INVALIDARG if sds is invalid. Otherwise an HRESULT.
369 */
370 HRESULT WINAPI ScriptApplyDigitSubstitution(const SCRIPT_DIGITSUBSTITUTE *sds,
371 SCRIPT_CONTROL *sc, SCRIPT_STATE *ss)
372 {
373 SCRIPT_DIGITSUBSTITUTE psds;
374
375 TRACE("%p, %p, %p\n", sds, sc, ss);
376
377 if (!sc || !ss) return E_POINTER;
378 if (!sds)
379 {
380 sds = &psds;
381 if (ScriptRecordDigitSubstitution(LOCALE_USER_DEFAULT, &psds) != S_OK)
382 return E_INVALIDARG;
383 }
384
385 sc->uDefaultLanguage = LANG_ENGLISH;
386 sc->fContextDigits = 0;
387 ss->fDigitSubstitute = 0;
388
389 switch (sds->DigitSubstitute) {
390 case SCRIPT_DIGITSUBSTITUTE_CONTEXT:
391 case SCRIPT_DIGITSUBSTITUTE_NATIONAL:
392 case SCRIPT_DIGITSUBSTITUTE_NONE:
393 case SCRIPT_DIGITSUBSTITUTE_TRADITIONAL:
394 return S_OK;
395 default:
396 return E_INVALIDARG;
397 }
398 }
399
400 /***********************************************************************
401 * ScriptItemize (USP10.@)
402 *
403 */
404 HRESULT WINAPI ScriptItemize(const WCHAR *pwcInChars, int cInChars, int cMaxItems,
405 const SCRIPT_CONTROL *psControl, const SCRIPT_STATE *psState,
406 SCRIPT_ITEM *pItems, int *pcItems)
407 {
408
409 #define Numeric_start 0x0030
410 #define Numeric_stop 0x0039
411 #define Numeric_space 0x0020
412 #define Arabic_start 0x0600
413 #define Arabic_stop 0x06ff
414 #define Latin_start 0x0001
415 #define Latin_stop 0x024f
416 #define Script_Arabic 6
417 #define Script_Latin 1
418 #define Script_Numeric 5
419
420 int cnt = 0, index = 0;
421 int New_Script = SCRIPT_UNDEFINED;
422
423 TRACE("%s,%d,%d,%p,%p,%p,%p\n", debugstr_wn(pwcInChars, cInChars), cInChars, cMaxItems,
424 psControl, psState, pItems, pcItems);
425
426 if (!pwcInChars || !cInChars || !pItems || cMaxItems < 2)
427 return E_INVALIDARG;
428
429 pItems[index].iCharPos = 0;
430 memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS));
431
432 if (pwcInChars[cnt] >= Numeric_start && pwcInChars[cnt] <= Numeric_stop)
433 pItems[index].a.eScript = Script_Numeric;
434 else
435 if (pwcInChars[cnt] >= Arabic_start && pwcInChars[cnt] <= Arabic_stop)
436 pItems[index].a.eScript = Script_Arabic;
437 else
438 if (pwcInChars[cnt] >= Latin_start && pwcInChars[cnt] <= Latin_stop)
439 pItems[index].a.eScript = Script_Latin;
440
441 if (pItems[index].a.eScript == Script_Arabic)
442 pItems[index].a.s.uBidiLevel = 1;
443
444 TRACE("New_Script=%d, eScript=%d index=%d cnt=%d iCharPos=%d\n",
445 New_Script, pItems[index].a.eScript, index, cnt,
446 pItems[index].iCharPos = cnt);
447
448 for (cnt=0; cnt < cInChars; cnt++)
449 {
450 if ((pwcInChars[cnt] >= Numeric_start && pwcInChars[cnt] <= Numeric_stop)
451 || (New_Script == Script_Numeric && pwcInChars[cnt] == Numeric_space))
452 New_Script = Script_Numeric;
453 else
454 if ((pwcInChars[cnt] >= Arabic_start && pwcInChars[cnt] <= Arabic_stop)
455 || (New_Script == Script_Arabic && pwcInChars[cnt] == Numeric_space))
456 New_Script = Script_Arabic;
457 else
458 if ((WCHAR) pwcInChars[cnt] >= Latin_start && (WCHAR) pwcInChars[cnt] <= Latin_stop)
459 New_Script = Script_Latin;
460 else
461 New_Script = SCRIPT_UNDEFINED;
462
463 if (New_Script != pItems[index].a.eScript)
464 {
465 TRACE("New_Script=%d, eScript=%d ", New_Script, pItems[index].a.eScript);
466 index++;
467 if (index+1 > cMaxItems)
468 return E_OUTOFMEMORY;
469
470 pItems[index].iCharPos = cnt;
471 memset(&pItems[index].a, 0, sizeof(SCRIPT_ANALYSIS));
472
473 if (New_Script == Script_Arabic)
474 pItems[index].a.s.uBidiLevel = 1;
475
476 pItems[index].a.eScript = New_Script;
477 if (New_Script == Script_Arabic)
478 pItems[index].a.s.uBidiLevel = 1;
479
480 TRACE("index=%d cnt=%d iCharPos=%d\n", index, cnt, pItems[index].iCharPos = cnt);
481 }
482 }
483
484 /* While not strictly necessary according to the spec, make sure the n+1
485 * item is set up to prevent random behaviour if the caller erroneously
486 * checks the n+1 structure */
487 memset(&pItems[index+1].a, 0, sizeof(SCRIPT_ANALYSIS));
488
489 TRACE("index=%d cnt=%d iCharPos=%d\n", index+1, cnt, pItems[index+1].iCharPos = cnt);
490
491 /* Set one SCRIPT_STATE item being returned */
492 *pcItems = index + 1;
493
494 /* Set SCRIPT_ITEM */
495 pItems[index+1].iCharPos = cnt; /* the last + 1 item
496 contains the ptr to the lastchar */
497 return S_OK;
498 }
499
500 /***********************************************************************
501 * ScriptStringAnalyse (USP10.@)
502 *
503 */
504 HRESULT WINAPI ScriptStringAnalyse(HDC hdc,
505 const void *pString,
506 int cString,
507 int cGlyphs,
508 int iCharset,
509 DWORD dwFlags,
510 int iReqWidth,
511 SCRIPT_CONTROL *psControl,
512 SCRIPT_STATE *psState,
513 const int *piDx,
514 SCRIPT_TABDEF *pTabdef,
515 const BYTE *pbInClass,
516 SCRIPT_STRING_ANALYSIS *pssa)
517 {
518 HRESULT hr;
519 StringAnalysis* analysis;
520 int numItemizedItems;
521 int i;
522 SCRIPT_CACHE* sc = 0;
523
524 TRACE("(%p,%p,%d,%d,%d,0x%x,%d,%p,%p,%p,%p,%p,%p)\n",
525 hdc, pString, cString, cGlyphs, iCharset, dwFlags,
526 iReqWidth, psControl, psState, piDx, pTabdef, pbInClass, pssa);
527
528 if (cString < 1 || !pString)
529 return E_INVALIDARG;
530
531 if ((dwFlags & SSA_GLYPHS) && !hdc)
532 return E_PENDING;
533
534 analysis = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
535 sizeof(StringAnalysis));
536
537 analysis->hdc = hdc;
538 numItemizedItems = 255;
539 analysis->pItem = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
540 numItemizedItems*sizeof(SCRIPT_ITEM)+1);
541
542 hr = ScriptItemize(pString, cString, numItemizedItems, psControl,
543 psState, analysis->pItem, &analysis->numItems);
544
545 while(hr == E_OUTOFMEMORY)
546 {
547 numItemizedItems *= 2;
548 HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, analysis->pItem,
549 numItemizedItems*sizeof(SCRIPT_ITEM)+1);
550 hr = ScriptItemize(pString, cString, numItemizedItems, psControl,
551 psState, analysis->pItem, &analysis->numItems);
552 }
553
554 if ((analysis->logattrs = HeapAlloc(GetProcessHeap(), 0, sizeof(SCRIPT_LOGATTR) * cString)))
555 ScriptBreak(pString, cString, (SCRIPT_STRING_ANALYSIS)analysis, analysis->logattrs);
556
557 analysis->glyphs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
558 sizeof(StringGlyphs)*analysis->numItems);
559 sc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SCRIPT_CACHE));
560
561 for(i=0; i<analysis->numItems; i++)
562 {
563 int cChar = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
564 int numGlyphs = 1.5 * cChar + 16;
565 WORD* glyphs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WORD)*numGlyphs);
566 WORD* pwLogClust = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WORD)*cChar);
567 int* piAdvance = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(int)*numGlyphs);
568 SCRIPT_VISATTR* psva = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SCRIPT_VISATTR)*cChar);
569 GOFFSET* pGoffset = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(GOFFSET)*numGlyphs);
570 ABC* abc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ABC));
571 int numGlyphsReturned;
572
573 /* FIXME: non unicode strings */
574 WCHAR* pStr = (WCHAR*)pString;
575 hr = ScriptShape(hdc, sc, &pStr[analysis->pItem[i].iCharPos],
576 cChar, numGlyphs, &analysis->pItem[i].a,
577 glyphs, pwLogClust, psva, &numGlyphsReturned);
578 hr = ScriptPlace(hdc, sc, glyphs, numGlyphsReturned, psva, &analysis->pItem[i].a,
579 piAdvance, pGoffset, abc);
580
581 analysis->glyphs[i].numGlyphs = numGlyphsReturned;
582 analysis->glyphs[i].glyphs = glyphs;
583 analysis->glyphs[i].pwLogClust = pwLogClust;
584 analysis->glyphs[i].piAdvance = piAdvance;
585 analysis->glyphs[i].psva = psva;
586 analysis->glyphs[i].pGoffset = pGoffset;
587 analysis->glyphs[i].abc = abc;
588 }
589
590 HeapFree(GetProcessHeap(), 0, sc);
591
592 *pssa = analysis;
593
594 return S_OK;
595 }
596
597 /***********************************************************************
598 * ScriptStringOut (USP10.@)
599 *
600 * This function takes the output of ScriptStringAnalyse and joins the segments
601 * of glyphs and passes the resulting string to ScriptTextOut. ScriptStringOut
602 * only processes glyphs.
603 *
604 * Parameters:
605 * ssa [I] buffer to hold the analysed string components
606 * iX [I] X axis displacement for output
607 * iY [I] Y axis displacement for output
608 * uOptions [I] flags controling output processing
609 * prc [I] rectangle coordinates
610 * iMinSel [I] starting pos for substringing output string
611 * iMaxSel [I] ending pos for substringing output string
612 * fDisabled [I] controls text highlighting
613 *
614 * RETURNS
615 * Success: S_OK
616 * Failure: is the value returned by ScriptTextOut
617 */
618 HRESULT WINAPI ScriptStringOut(SCRIPT_STRING_ANALYSIS ssa,
619 int iX,
620 int iY,
621 UINT uOptions,
622 const RECT *prc,
623 int iMinSel,
624 int iMaxSel,
625 BOOL fDisabled)
626 {
627 StringAnalysis *analysis;
628 WORD *glyphs;
629 int item, cnt, x;
630 HRESULT hr;
631 SCRIPT_CACHE sc = 0;
632
633 TRACE("(%p,%d,%d,0x%1x,%p,%d,%d,%d)\n",
634 ssa, iX, iY, uOptions, prc, iMinSel, iMaxSel, fDisabled);
635
636 analysis = ssa; /* map ptr to string_analysis struct */
637
638 /*
639 * Get storage for the output buffer for the consolidated strings
640 */
641 cnt = 0;
642 for(item = 0; item < analysis->numItems; item++)
643 {
644 cnt += analysis->glyphs[item].numGlyphs;
645 }
646 glyphs = HeapAlloc( GetProcessHeap(), 0, sizeof(WCHAR) * cnt );
647
648 /*
649 * ScriptStringOut only processes glyphs hence set ETO_GLYPH_INDEX
650 */
651 uOptions |= ETO_GLYPH_INDEX;
652 analysis->pItem[0].a.fNoGlyphIndex = FALSE; /* say that we have glyphs */
653
654 /*
655 * Copy the string items into the output buffer
656 */
657
658 TRACE("numItems %d\n", analysis->numItems);
659
660 cnt = 0;
661 for (item = 0; item < analysis->numItems; item++)
662 {
663 memcpy(&glyphs[cnt], analysis->glyphs[item].glyphs,
664 sizeof(WCHAR) * analysis->glyphs[item].numGlyphs);
665
666 TRACE("Item %d, Glyphs %d ", item, analysis->glyphs[item].numGlyphs);
667 for (x = cnt; x < analysis->glyphs[item].numGlyphs + cnt; x ++)
668 TRACE("%04x", glyphs[x]);
669 TRACE("\n");
670
671 cnt += analysis->glyphs[item].numGlyphs; /* point to the end of the copied text */
672 }
673
674 hr = ScriptTextOut(analysis->hdc, &sc, iX, iY, uOptions, prc, &analysis->pItem->a,
675 NULL, 0, glyphs, cnt, analysis->glyphs->piAdvance, NULL,
676 analysis->glyphs->pGoffset);
677 TRACE("ScriptTextOut hr=%08x\n", hr);
678
679 /*
680 * Free the output buffer and script cache
681 */
682 HeapFree(GetProcessHeap(), 0, glyphs);
683 ScriptFreeCache(&sc);
684
685 return hr;
686 }
687
688 /***********************************************************************
689 * ScriptStringCPtoX (USP10.@)
690 *
691 */
692 HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrailing, int* pX)
693 {
694 int i, j;
695 int runningX = 0;
696 int runningCp = 0;
697 StringAnalysis* analysis = ssa;
698 TRACE("(%p), %d, %d, (%p)\n", ssa, icp, fTrailing, pX);
699
700 if(!ssa || !pX)
701 {
702 return 1;
703 }
704
705 /* icp out of range */
706 if(icp < 0)
707 {
708 analysis->invalid = TRUE;
709 return E_INVALIDARG;
710 }
711
712 for(i=0; i<analysis->numItems; i++)
713 {
714 for(j=0; j<analysis->glyphs[i].numGlyphs; j++)
715 {
716 if(runningCp == icp && fTrailing == FALSE)
717 {
718 *pX = runningX;
719 return S_OK;
720 }
721 runningX += analysis->glyphs[i].piAdvance[j];
722 if(runningCp == icp && fTrailing == TRUE)
723 {
724 *pX = runningX;
725 return S_OK;
726 }
727 runningCp++;
728 }
729 }
730
731 /* icp out of range */
732 analysis->invalid = TRUE;
733 return E_INVALIDARG;
734 }
735
736 /***********************************************************************
737 * ScriptStringXtoCP (USP10.@)
738 *
739 */
740 HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh, int* piTrailing)
741 {
742 StringAnalysis* analysis = ssa;
743 int i;
744 int j;
745 int runningX = 0;
746 int runningCp = 0;
747 int width;
748
749 TRACE("(%p), %d, (%p), (%p)\n", ssa, iX, piCh, piTrailing);
750
751 if(!ssa || !piCh || !piTrailing)
752 {
753 return 1;
754 }
755
756 /* out of range */
757 if(iX < 0)
758 {
759 *piCh = -1;
760 *piTrailing = TRUE;
761 return S_OK;
762 }
763
764 for(i=0; i<analysis->numItems; i++)
765 {
766 for(j=0; j<analysis->glyphs[i].numGlyphs; j++)
767 {
768 width = analysis->glyphs[i].piAdvance[j];
769 if(iX < (runningX + width))
770 {
771 *piCh = runningCp;
772 if((iX - runningX) > width/2)
773 *piTrailing = TRUE;
774 else
775 *piTrailing = FALSE;
776 return S_OK;
777 }
778 runningX += width;
779 runningCp++;
780 }
781 }
782
783 /* out of range */
784 *piCh = analysis->pItem[analysis->numItems].iCharPos;
785 *piTrailing = FALSE;
786
787 return S_OK;
788 }
789
790
791 /***********************************************************************
792 * ScriptStringFree (USP10.@)
793 *
794 * Free a string analysis.
795 *
796 * PARAMS
797 * pssa [I] string analysis.
798 *
799 * RETURNS
800 * Success: S_OK
801 * Failure: Non-zero HRESULT value.
802 */
803 HRESULT WINAPI ScriptStringFree(SCRIPT_STRING_ANALYSIS *pssa)
804 {
805 StringAnalysis* analysis;
806 BOOL invalid;
807 int i;
808
809 TRACE("(%p)\n",pssa);
810
811 if(!pssa)
812 return E_INVALIDARG;
813
814 analysis = *pssa;
815 if(!analysis)
816 return E_INVALIDARG;
817
818 invalid = analysis->invalid;
819
820 for(i=0; i<analysis->numItems; i++)
821 {
822 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].glyphs);
823 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].pwLogClust);
824 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].piAdvance);
825 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].psva);
826 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].pGoffset);
827 HeapFree(GetProcessHeap(), 0, analysis->glyphs[i].abc);
828 }
829
830 HeapFree(GetProcessHeap(), 0, analysis->glyphs);
831 HeapFree(GetProcessHeap(), 0, analysis->pItem);
832 HeapFree(GetProcessHeap(), 0, analysis->logattrs);
833 HeapFree(GetProcessHeap(), 0, analysis->sz);
834 HeapFree(GetProcessHeap(), 0, analysis);
835
836 if(invalid)
837 return E_INVALIDARG;
838
839 return S_OK;
840 }
841
842 /***********************************************************************
843 * ScriptCPtoX (USP10.@)
844 *
845 */
846 HRESULT WINAPI ScriptCPtoX(int iCP,
847 BOOL fTrailing,
848 int cChars,
849 int cGlyphs,
850 const WORD *pwLogClust,
851 const SCRIPT_VISATTR *psva,
852 const int *piAdvance,
853 const SCRIPT_ANALYSIS *psa,
854 int *piX)
855 {
856 int item;
857 int iPosX;
858 float fMaxPosX = 0;
859 TRACE("(%d,%d,%d,%d,%p,%p,%p,%p,%p)\n",
860 iCP, fTrailing, cChars, cGlyphs, pwLogClust, psva, piAdvance,
861 psa, piX);
862 for (item=0; item < cGlyphs; item++) /* total piAdvance */
863 fMaxPosX += piAdvance[item];
864 iPosX = (fMaxPosX/cGlyphs)*(iCP+fTrailing);
865 if (iPosX > fMaxPosX)
866 iPosX = fMaxPosX;
867 *piX = iPosX; /* Return something in range */
868
869 TRACE("*piX=%d\n", *piX);
870 return S_OK;
871 }
872
873 /***********************************************************************
874 * ScriptXtoCP (USP10.@)
875 *
876 */
877 HRESULT WINAPI ScriptXtoCP(int iX,
878 int cChars,
879 int cGlyphs,
880 const WORD *pwLogClust,
881 const SCRIPT_VISATTR *psva,
882 const int *piAdvance,
883 const SCRIPT_ANALYSIS *psa,
884 int *piCP,
885 int *piTrailing)
886 {
887 int item;
888 int iPosX;
889 float fMaxPosX = 1;
890 float fAvePosX;
891 TRACE("(%d,%d,%d,%p,%p,%p,%p,%p,%p)\n",
892 iX, cChars, cGlyphs, pwLogClust, psva, piAdvance,
893 psa, piCP, piTrailing);
894 if (iX < 0) /* iX is before start of run */
895 {
896 *piCP = -1;
897 *piTrailing = TRUE;
898 return S_OK;
899 }
900
901 for (item=0; item < cGlyphs; item++) /* total piAdvance */
902 fMaxPosX += piAdvance[item];
903
904 if (iX >= fMaxPosX) /* iX too large */
905 {
906 *piCP = cChars;
907 *piTrailing = FALSE;
908 return S_OK;
909 }
910
911 fAvePosX = fMaxPosX / cGlyphs;
912 iPosX = fAvePosX;
913 for (item = 1; item < cGlyphs && iPosX < iX; item++)
914 iPosX += fAvePosX;
915 if (iPosX - iX > fAvePosX/2)
916 *piTrailing = 0;
917 else
918 *piTrailing = 1; /* yep we are over halfway */
919
920 *piCP = item -1; /* Return character position */
921 TRACE("*piCP=%d iPposX=%d\n", *piCP, iPosX);
922 return S_OK;
923 }
924
925 /***********************************************************************
926 * ScriptBreak (USP10.@)
927 *
928 * Retrieve line break information.
929 *
930 * PARAMS
931 * chars [I] Array of characters.
932 * sa [I] String analysis.
933 * la [I] Array of logical attribute structures.
934 *
935 * RETURNS
936 * Success: S_OK
937 * Failure: S_FALSE
938 */
939 HRESULT WINAPI ScriptBreak(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la)
940 {
941 unsigned int i;
942
943 TRACE("(%s, %d, %p, %p)\n", debugstr_wn(chars, count), count, sa, la);
944
945 if (!la) return S_FALSE;
946
947 for (i = 0; i < count; i++)
948 {
949 memset(&la[i], 0, sizeof(SCRIPT_LOGATTR));
950
951 /* FIXME: set the other flags */
952 la[i].fWhiteSpace = isspaceW(chars[i]);
953 la[i].fCharStop = 1;
954 }
955 return S_OK;
956 }
957
958 static const struct
959 {
960 WCHAR start;
961 WCHAR end;
962 DWORD flag;
963 }
964 complex_ranges[] =
965 {
966 { 0, 0x0b, SIC_COMPLEX },
967 { 0x0c, 0x0c, SIC_NEUTRAL },
968 { 0x0d, 0x1f, SIC_COMPLEX },
969 { 0x20, 0x2f, SIC_NEUTRAL },
970 { 0x30, 0x39, SIC_ASCIIDIGIT },
971 { 0x3a, 0x40, SIC_NEUTRAL },
972 { 0x5b, 0x60, SIC_NEUTRAL },
973 { 0x7b, 0x7e, SIC_NEUTRAL },
974 { 0x7f, 0x9f, SIC_COMPLEX },
975 { 0xa0, 0xa5, SIC_NEUTRAL },
976 { 0xa7, 0xa8, SIC_NEUTRAL },
977 { 0xab, 0xab, SIC_NEUTRAL },
978 { 0xad, 0xad, SIC_NEUTRAL },
979 { 0xaf, 0xaf, SIC_NEUTRAL },
980 { 0xb0, 0xb1, SIC_NEUTRAL },
981 { 0xb4, 0xb4, SIC_NEUTRAL },
982 { 0xb6, 0xb8, SIC_NEUTRAL },
983 { 0xbb, 0xbf, SIC_NEUTRAL },
984 { 0xd7, 0xd7, SIC_NEUTRAL },
985 { 0xf7, 0xf7, SIC_NEUTRAL },
986 { 0x2b9, 0x2ba, SIC_NEUTRAL },
987 { 0x2c2, 0x2cf, SIC_NEUTRAL },
988 { 0x2d2, 0x2df, SIC_NEUTRAL },
989 { 0x2e5, 0x2e9, SIC_COMPLEX },
990 { 0x2ea, 0x2ed, SIC_NEUTRAL },
991 { 0x300, 0x362, SIC_COMPLEX },
992 { 0x530, 0x60b, SIC_COMPLEX },
993 { 0x60c, 0x60d, SIC_NEUTRAL },
994 { 0x60e, 0x669, SIC_COMPLEX },
995 { 0x66a, 0x66a, SIC_NEUTRAL },
996 { 0x66b, 0x6e8, SIC_COMPLEX },
997 { 0x6e9, 0x6e9, SIC_NEUTRAL },
998 { 0x6ea, 0x7bf, SIC_COMPLEX },
999 { 0x900, 0x1360, SIC_COMPLEX },
1000 { 0x137d, 0x137f, SIC_COMPLEX },
1001 { 0x1680, 0x1680, SIC_NEUTRAL },
1002 { 0x1780, 0x18af, SIC_COMPLEX },
1003 { 0x2000, 0x200a, SIC_NEUTRAL },
1004 { 0x200b, 0x200f, SIC_COMPLEX },
1005 { 0x2010, 0x2016, SIC_NEUTRAL },
1006 { 0x2018, 0x2022, SIC_NEUTRAL },
1007 { 0x2024, 0x2028, SIC_NEUTRAL },
1008 { 0x2029, 0x202e, SIC_COMPLEX },
1009 { 0x202f, 0x2037, SIC_NEUTRAL },
1010 { 0x2039, 0x203c, SIC_NEUTRAL },
1011 { 0x2044, 0x2046, SIC_NEUTRAL },
1012 { 0x206a, 0x206f, SIC_COMPLEX },
1013 { 0x207a, 0x207e, SIC_NEUTRAL },
1014 { 0x208a, 0x20aa, SIC_NEUTRAL },
1015 { 0x20ac, 0x20cf, SIC_NEUTRAL },
1016 { 0x20d0, 0x20ff, SIC_COMPLEX },
1017 { 0x2103, 0x2103, SIC_NEUTRAL },
1018 { 0x2105, 0x2105, SIC_NEUTRAL },
1019 { 0x2109, 0x2109, SIC_NEUTRAL },
1020 { 0x2116, 0x2116, SIC_NEUTRAL },
1021 { 0x2121, 0x2122, SIC_NEUTRAL },
1022 { 0x212e, 0x212e, SIC_NEUTRAL },
1023 { 0x2153, 0x2154, SIC_NEUTRAL },
1024 { 0x215b, 0x215e, SIC_NEUTRAL },
1025 { 0x2190, 0x2199, SIC_NEUTRAL },
1026 { 0x21b8, 0x21b9, SIC_NEUTRAL },
1027 { 0x21d2, 0x21d2, SIC_NEUTRAL },
1028 { 0x21d4, 0x21d4, SIC_NEUTRAL },
1029 { 0x21e7, 0x21e7, SIC_NEUTRAL },
1030 { 0x2200, 0x2200, SIC_NEUTRAL },
1031 { 0x2202, 0x2203, SIC_NEUTRAL },
1032 { 0x2207, 0x2208, SIC_NEUTRAL },
1033 { 0x220b, 0x220b, SIC_NEUTRAL },
1034 { 0x220f, 0x220f, SIC_NEUTRAL },
1035 { 0x2211, 0x2213, SIC_NEUTRAL },
1036 { 0x2215, 0x2215, SIC_NEUTRAL },
1037 { 0x221a, 0x221a, SIC_NEUTRAL },
1038 { 0x221d, 0x2220, SIC_NEUTRAL },
1039 { 0x2223, 0x2223, SIC_NEUTRAL },
1040 { 0x2225, 0x2225, SIC_NEUTRAL },
1041 { 0x2227, 0x222c, SIC_NEUTRAL },
1042 { 0x222e, 0x222e, SIC_NEUTRAL },
1043 { 0x2234, 0x2237, SIC_NEUTRAL },
1044 { 0x223c, 0x223d, SIC_NEUTRAL },
1045 { 0x2248, 0x2248, SIC_NEUTRAL },
1046 { 0x224c, 0x224c, SIC_NEUTRAL },
1047 { 0x2252, 0x2252, SIC_NEUTRAL },
1048 { 0x2260, 0x2261, SIC_NEUTRAL },
1049 { 0x2264, 0x2267, SIC_NEUTRAL },
1050 { 0x226a, 0x226b, SIC_NEUTRAL },
1051 { 0x226e, 0x226f, SIC_NEUTRAL },
1052 { 0x2282, 0x2283, SIC_NEUTRAL },
1053 { 0x2286, 0x2287, SIC_NEUTRAL },
1054 { 0x2295, 0x2295, SIC_NEUTRAL },
1055 { 0x2299, 0x2299, SIC_NEUTRAL },
1056 { 0x22a5, 0x22a5, SIC_NEUTRAL },
1057 { 0x22bf, 0x22bf, SIC_NEUTRAL },
1058 { 0x2312, 0x2312, SIC_NEUTRAL },
1059 { 0x24ea, 0x24ea, SIC_COMPLEX },
1060 { 0x2500, 0x254b, SIC_NEUTRAL },
1061 { 0x2550, 0x256d, SIC_NEUTRAL },
1062 { 0x256e, 0x2574, SIC_NEUTRAL },
1063 { 0x2581, 0x258f, SIC_NEUTRAL },
1064 { 0x2592, 0x2595, SIC_NEUTRAL },
1065 { 0x25a0, 0x25a1, SIC_NEUTRAL },
1066 { 0x25a3, 0x25a9, SIC_NEUTRAL },
1067 { 0x25b2, 0x25b3, SIC_NEUTRAL },
1068 { 0x25b6, 0x25b7, SIC_NEUTRAL },
1069 { 0x25bc, 0x25bd, SIC_NEUTRAL },
1070 { 0x25c0, 0x25c1, SIC_NEUTRAL },
1071 { 0x25c6, 0x25c8, SIC_NEUTRAL },
1072 { 0x25cb, 0x25cb, SIC_NEUTRAL },
1073 { 0x25ce, 0x25d1, SIC_NEUTRAL },
1074 { 0x25e2, 0x25e5, SIC_NEUTRAL },
1075 { 0x25ef, 0x25ef, SIC_NEUTRAL },
1076 { 0x2605, 0x2606, SIC_NEUTRAL },
1077 { 0x2609, 0x2609, SIC_NEUTRAL },
1078 { 0x260e, 0x260f, SIC_NEUTRAL },
1079 { 0x261c, 0x261c, SIC_NEUTRAL },
1080 { 0x261e, 0x261e, SIC_NEUTRAL },
1081 { 0x2640, 0x2640, SIC_NEUTRAL },
1082 { 0x2642, 0x2642, SIC_NEUTRAL },
1083 { 0x2660, 0x2661, SIC_NEUTRAL },
1084 { 0x2663, 0x2665, SIC_NEUTRAL },
1085 { 0x2667, 0x266a, SIC_NEUTRAL },
1086 { 0x266c, 0x266d, SIC_NEUTRAL },
1087 { 0x266f, 0x266f, SIC_NEUTRAL },
1088 { 0x273d, 0x273d, SIC_NEUTRAL },
1089 { 0x2e80, 0x312f, SIC_COMPLEX },
1090 { 0x3190, 0x31bf, SIC_COMPLEX },
1091 { 0x31f0, 0x31ff, SIC_COMPLEX },
1092 { 0x3220, 0x325f, SIC_COMPLEX },
1093 { 0x3280, 0xa4ff, SIC_COMPLEX },
1094 { 0xd800, 0xdfff, SIC_COMPLEX },
1095 { 0xe000, 0xf8ff, SIC_NEUTRAL },
1096 { 0xf900, 0xfaff, SIC_COMPLEX },
1097 { 0xfb13, 0xfb28, SIC_COMPLEX },
1098 { 0xfb29, 0xfb29, SIC_NEUTRAL },
1099 { 0xfb2a, 0xfb4f, SIC_COMPLEX },
1100 { 0xfd3e, 0xfd3f, SIC_NEUTRAL },
1101 { 0xfdd0, 0xfdef, SIC_COMPLEX },
1102 { 0xfe20, 0xfe6f, SIC_COMPLEX },
1103 { 0xfeff, 0xfeff, SIC_COMPLEX },
1104 { 0xff01, 0xff5e, SIC_COMPLEX },
1105 { 0xff61, 0xff9f, SIC_COMPLEX },
1106 { 0xffe0, 0xffe6, SIC_COMPLEX },
1107 { 0xffe8, 0xffee, SIC_COMPLEX },
1108 { 0xfff9, 0xfffb, SIC_COMPLEX },
1109 { 0xfffe, 0xfffe, SIC_COMPLEX }
1110 };
1111
1112 /***********************************************************************
1113 * ScriptIsComplex (USP10.@)
1114 *
1115 * Determine if a string is complex.
1116 *
1117 * PARAMS
1118 * chars [I] Array of characters to test.
1119 * len [I] Length in characters.
1120 * flag [I] Flag.
1121 *
1122 * RETURNS
1123 * Success: S_OK
1124 * Failure: S_FALSE
1125 *
1126 * NOTES
1127 * Behaviour matches that of WinXP.
1128 */
1129 HRESULT WINAPI ScriptIsComplex(const WCHAR *chars, int len, DWORD flag)
1130 {
1131 unsigned int i, j;
1132
1133 TRACE("(%s,%d,0x%x)\n", debugstr_wn(chars, len), len, flag);
1134
1135 for (i = 0; i < len; i++)
1136 {
1137 for (j = 0; j < sizeof(complex_ranges)/sizeof(complex_ranges[0]); j++)
1138 {
1139 if (chars[i] >= complex_ranges[j].start &&
1140 chars[i] <= complex_ranges[j].end &&
1141 (flag & complex_ranges[j].flag)) return S_OK;
1142 }
1143 }
1144 return S_FALSE;
1145 }
1146
1147 /***********************************************************************
1148 * ScriptShape (USP10.@)
1149 *
1150 */
1151 HRESULT WINAPI ScriptShape(HDC hdc, SCRIPT_CACHE *psc, const WCHAR *pwcChars,
1152 int cChars, int cMaxGlyphs,
1153 SCRIPT_ANALYSIS *psa, WORD *pwOutGlyphs, WORD *pwLogClust,
1154 SCRIPT_VISATTR *psva, int *pcGlyphs)
1155 {
1156 int cnt;
1157 HRESULT hr;
1158 *pcGlyphs = cChars;
1159
1160 TRACE("(%p, %p, %p, %d, %d, %p)\n", hdc, psc, pwcChars, cChars, cMaxGlyphs, psa);
1161 if (psa) TRACE("psa values: %d, %d, %d, %d, %d, %d, %d\n", psa->eScript, psa->fRTL, psa->fLayoutRTL,
1162 psa->fLinkBefore, psa->fLinkAfter, psa->fLogicalOrder, psa->fNoGlyphIndex);
1163
1164 if (cChars > cMaxGlyphs) return E_OUTOFMEMORY;
1165 if ((hr = get_script_cache(hdc, psc))) return hr;
1166
1167 TRACE("Before: ");
1168 for (cnt = 0; cnt < cChars; cnt++)
1169 TRACE("%4x",pwcChars[cnt]);
1170 TRACE("\n");
1171
1172 if (!psa->fNoGlyphIndex) { /* Glyph translate */
1173 if (!(GetGlyphIndicesW(((ScriptCache *)*psc)->hdc, pwcChars, cChars, pwOutGlyphs, 0)))
1174 return S_FALSE;
1175
1176 TRACE("After: ");
1177 for (cnt = 0; cnt < cChars; cnt++) {
1178 TRACE("%04x",pwOutGlyphs[cnt]);
1179 }
1180 TRACE("\n");
1181 }
1182 else {
1183 TRACE("After: ");
1184 for (cnt = 0; cnt < cChars; cnt++) { /* no translate so set up */
1185 pwOutGlyphs[cnt] = pwcChars[cnt]; /* copy in to out and */
1186 TRACE("%04x",pwOutGlyphs[cnt]);
1187 }
1188 TRACE("\n");
1189 }
1190
1191 /* Set up a valid SCRIPT_VISATTR and LogClust for each char in this run */
1192 for (cnt = 0; cnt < cChars; cnt++) {
1193 /* FIXME: set to better values */
1194 psva[cnt].uJustification = 2;
1195 psva[cnt].fClusterStart = 1;
1196 psva[cnt].fDiacritic = 0;
1197 psva[cnt].fZeroWidth = 0;
1198 pwLogClust[cnt] = cnt;
1199 }
1200 return S_OK;
1201 }
1202
1203 /***********************************************************************
1204 * ScriptPlace (USP10.@)
1205 *
1206 */
1207 HRESULT WINAPI ScriptPlace(HDC hdc, SCRIPT_CACHE *psc, const WORD *pwGlyphs,
1208 int cGlyphs, const SCRIPT_VISATTR *psva,
1209 SCRIPT_ANALYSIS *psa, int *piAdvance, GOFFSET *pGoffset, ABC *pABC )
1210 {
1211 int wcnt;
1212 HRESULT hr;
1213 LPABC lpABC;
1214
1215 TRACE("(%p, %p, %p, %s, %d, %p, %p, %p)\n", hdc, psc, pwGlyphs,
1216 debugstr_wn(pwGlyphs, cGlyphs), cGlyphs, psva, psa, piAdvance);
1217
1218 if ((hr = get_script_cache(hdc, psc))) return hr;
1219
1220 /* Here we need to calculate the width of the run unit. At this point the input string
1221 * has been converted to glyphs and we still need to translate back to the original chars
1222 * to get the correct ABC widths. */
1223
1224 /* FIXME: set pGoffset to more reasonable values */
1225
1226 lpABC = HeapAlloc(GetProcessHeap(), 0 , sizeof(ABC)*cGlyphs);
1227 pABC->abcA = 0;
1228 pABC->abcB = 0;
1229 pABC->abcC = 0;
1230 if (!GetCharABCWidthsI(((ScriptCache *)*psc)->hdc, 0, cGlyphs, (WORD *) pwGlyphs, lpABC ))
1231 {
1232 WARN("Could not get ABC values\n");
1233 for (wcnt = 0; wcnt < cGlyphs; wcnt++) {
1234 piAdvance[wcnt] = 0;
1235 pGoffset[wcnt].du = 0;
1236 pGoffset[wcnt].dv = 0;
1237 }
1238 }
1239 else
1240 {
1241 for (wcnt = 0; wcnt < cGlyphs ; wcnt++) { /* add up the char lengths */
1242 TRACE(" Glyph=%04x, abcA=%d, abcB=%d, abcC=%d wcnt=%d\n",
1243 pwGlyphs[wcnt],
1244 lpABC[wcnt].abcA,
1245 lpABC[wcnt].abcB,
1246 lpABC[wcnt].abcC, wcnt);
1247 pABC->abcA += lpABC[wcnt].abcA;
1248 pABC->abcB += lpABC[wcnt].abcB;
1249 pABC->abcC += lpABC[wcnt].abcC;
1250 piAdvance[wcnt] = lpABC[wcnt].abcA + lpABC[wcnt].abcB + lpABC[wcnt].abcC;
1251 pGoffset[wcnt].du = 0;
1252 pGoffset[wcnt].dv = 0;
1253 }
1254 }
1255 TRACE("Total for run: abcA=%d, abcB=%d, abcC=%d\n", pABC->abcA, pABC->abcB, pABC->abcC);
1256 HeapFree(GetProcessHeap(), 0, lpABC );
1257
1258 return S_OK;
1259 }
1260
1261 /***********************************************************************
1262 * ScriptGetCMap (USP10.@)
1263 *
1264 * Retrieve glyph indices.
1265 *
1266 * PARAMS
1267 * hdc [I] Device context.
1268 * psc [I/O] Opaque pointer to a script cache.
1269 * pwcInChars [I] Array of Unicode characters.
1270 * cChars [I] Number of characters in pwcInChars.
1271 * dwFlags [I] Flags.
1272 * pwOutGlyphs [O] Buffer to receive the array of glyph indices.
1273 *
1274 * RETURNS
1275 * Success: S_OK
1276 * Failure: Non-zero HRESULT value.
1277 */
1278 HRESULT WINAPI ScriptGetCMap(HDC hdc, SCRIPT_CACHE *psc, const WCHAR *pwcInChars,
1279 int cChars, DWORD dwFlags, WORD *pwOutGlyphs)
1280 {
1281 int cnt;
1282 HRESULT hr;
1283
1284 TRACE("(%p,%p,%s,%d,0x%x,%p)\n", hdc, psc, debugstr_wn(pwcInChars, cChars),
1285 cChars, dwFlags, pwOutGlyphs);
1286
1287 if ((hr = get_script_cache(hdc, psc))) return hr;
1288
1289 TRACE("Before: ");
1290 for (cnt = 0; cnt < cChars; cnt++)
1291 TRACE("%4x",pwcInChars[cnt]);
1292 TRACE("\n");
1293
1294 GetGlyphIndicesW(((ScriptCache *)*psc)->hdc, pwcInChars, cChars, pwOutGlyphs, 0);
1295
1296 TRACE("After: ");
1297 for (cnt = 0; cnt < cChars; cnt++) {
1298 TRACE("%04x",pwOutGlyphs[cnt]);
1299 }
1300 TRACE("\n");
1301
1302 return S_OK;
1303 }
1304
1305 /***********************************************************************
1306 * ScriptTextOut (USP10.@)
1307 *
1308 */
1309 HRESULT WINAPI ScriptTextOut(const HDC hdc, SCRIPT_CACHE *psc, int x, int y, UINT fuOptions,
1310 const RECT *lprc, const SCRIPT_ANALYSIS *psa, const WCHAR *pwcReserved,
1311 int iReserved, const WORD *pwGlyphs, int cGlyphs, const int *piAdvance,
1312 const int *piJustify, const GOFFSET *pGoffset)
1313 {
1314 HRESULT hr;
1315
1316 TRACE("(%p, %p, %d, %d, %04x, %p, %p, %p, %d, %p, %d, %p, %p, %p)\n",
1317 hdc, psc, x, y, fuOptions, lprc, psa, pwcReserved, iReserved, pwGlyphs, cGlyphs,
1318 piAdvance, piJustify, pGoffset);
1319
1320 if (!hdc && psc && !*psc) return E_INVALIDARG;
1321 if (!piAdvance || !psa || !pwGlyphs) return E_INVALIDARG;
1322 if ((hr = get_script_cache(hdc, psc))) return hr;
1323
1324 fuOptions &= ETO_CLIPPED + ETO_OPAQUE;
1325 if (!psa->fNoGlyphIndex) /* Have Glyphs? */
1326 fuOptions |= ETO_GLYPH_INDEX; /* Say don't do translation to glyph */
1327
1328 if (!ExtTextOutW(((ScriptCache *)*psc)->hdc, x, y, fuOptions, lprc, pwGlyphs, cGlyphs, NULL))
1329 return S_FALSE;
1330
1331 return S_OK;
1332 }
1333
1334 /***********************************************************************
1335 * ScriptCacheGetHeight (USP10.@)
1336 *
1337 * Retrieve the height of the font in the cache.
1338 *
1339 * PARAMS
1340 * hdc [I] Device context.
1341 * psc [I/O] Opaque pointer to a script cache.
1342 * height [O] Receives font height.
1343 *
1344 * RETURNS
1345 * Success: S_OK
1346 * Failure: Non-zero HRESULT value.
1347 */
1348 HRESULT WINAPI ScriptCacheGetHeight(HDC hdc, SCRIPT_CACHE *psc, LONG *height)
1349 {
1350 HRESULT hr;
1351 TEXTMETRICW metric;
1352
1353 TRACE("(%p, %p, %p)\n", hdc, psc, height);
1354
1355 if (!height) return E_INVALIDARG;
1356 if ((hr = get_script_cache(hdc, psc))) return hr;
1357
1358 /* FIXME: get this from the cache */
1359 if (!GetTextMetricsW(((ScriptCache *)*psc)->hdc, &metric)) return E_INVALIDARG;
1360
1361 *height = metric.tmHeight;
1362 return S_OK;
1363 }
1364
1365 /***********************************************************************
1366 * ScriptGetGlyphABCWidth (USP10.@)
1367 *
1368 * Retrieve the width of a glyph.
1369 *
1370 * PARAMS
1371 * hdc [I] Device context.
1372 * psc [I/O] Opaque pointer to a script cache.
1373 * glyph [I] Glyph to retrieve the width for.
1374 * abc [O] ABC widths of the glyph.
1375 *
1376 * RETURNS
1377 * Success: S_OK
1378 * Failure: Non-zero HRESULT value.
1379 */
1380 HRESULT WINAPI ScriptGetGlyphABCWidth(HDC hdc, SCRIPT_CACHE *psc, WORD glyph, ABC *abc)
1381 {
1382 HRESULT hr;
1383
1384 TRACE("(%p, %p, 0x%04x, %p)\n", hdc, psc, glyph, abc);
1385
1386 if ((hr = get_script_cache(hdc, psc))) return hr;
1387
1388 /* FIXME: get this from the cache */
1389 if (!GetCharABCWidthsW(((ScriptCache *)*psc)->hdc, glyph, glyph, abc)) return E_HANDLE;
1390 return S_OK;
1391 }
1392
1393 /***********************************************************************
1394 * ScriptLayout (USP10.@)
1395 *
1396 * Map embedding levels to visual and/or logical order.
1397 *
1398 * PARAMS
1399 * runs [I] Size of level array.
1400 * level [I] Array of embedding levels.
1401 * vistolog [O] Map of embedding levels from visual to logical order.
1402 * logtovis [O] Map of embedding levels from logical to visual order.
1403 *
1404 * RETURNS
1405 * Success: S_OK
1406 * Failure: Non-zero HRESULT value.
1407 *
1408 * BUGS
1409 * This stub works correctly for any sequence of a single
1410 * embedding level but not for sequences of different
1411 * embedding levels, i.e. mixtures of RTL and LTR scripts.
1412 */
1413 HRESULT WINAPI ScriptLayout(int runs, const BYTE *level, int *vistolog, int *logtovis)
1414 {
1415 int i, j = runs - 1, k = 0;
1416
1417 TRACE("(%d, %p, %p, %p)\n", runs, level, vistolog, logtovis);
1418
1419 if (!level || (!vistolog && !logtovis))
1420 return E_INVALIDARG;
1421
1422 for (i = 0; i < runs; i++)
1423 {
1424 if (level[i] % 2)
1425 {
1426 if (vistolog) *vistolog++ = j;
1427 if (logtovis) *logtovis++ = j;
1428 j--;
1429 }
1430 else
1431 {
1432 if (vistolog) *vistolog++ = k;
1433 if (logtovis) *logtovis++ = k;
1434 k++;
1435 }
1436 }
1437 return S_OK;
1438 }
1439
1440 /***********************************************************************
1441 * ScriptStringGetLogicalWidths (USP10.@)
1442 *
1443 * Returns logical widths from a string analysis.
1444 *
1445 * PARAMS
1446 * ssa [I] string analysis.
1447 * piDx [O] logical widths returned.
1448 *
1449 * RETURNS
1450 * Success: S_OK
1451 * Failure: a non-zero HRESULT.
1452 */
1453 HRESULT WINAPI ScriptStringGetLogicalWidths(SCRIPT_STRING_ANALYSIS ssa, int *piDx)
1454 {
1455 int i, j, next = 0;
1456 StringAnalysis *analysis = ssa;
1457
1458 TRACE("%p, %p\n", ssa, piDx);
1459
1460 if (!analysis) return S_FALSE;
1461
1462 for (i = 0; i < analysis->numItems; i++)
1463 {
1464 for (j = 0; j < analysis->glyphs[i].numGlyphs; j++)
1465 {
1466 piDx[next] = analysis->glyphs[i].piAdvance[j];
1467 next++;
1468 }
1469 }
1470 return S_OK;
1471 }
1472
1473 /***********************************************************************
1474 * ScriptStringValidate (USP10.@)
1475 *
1476 * Validate a string analysis.
1477 *
1478 * PARAMS
1479 * ssa [I] string analysis.
1480 *
1481 * RETURNS
1482 * Success: S_OK
1483 * Failure: S_FALSE if invalid sequences are found
1484 * or a non-zero HRESULT if it fails.
1485 */
1486 HRESULT WINAPI ScriptStringValidate(SCRIPT_STRING_ANALYSIS ssa)
1487 {
1488 StringAnalysis *analysis = ssa;
1489
1490 TRACE("(%p)\n", ssa);
1491
1492 if (!analysis) return E_INVALIDARG;
1493 return (analysis->invalid) ? S_FALSE : S_OK;
1494 }
1495
1496 /***********************************************************************
1497 * ScriptString_pSize (USP10.@)
1498 *
1499 * Retrieve width and height of an analysed string.
1500 *
1501 * PARAMS
1502 * ssa [I] string analysis.
1503 *
1504 * RETURNS
1505 * Success: Pointer to a SIZE structure.
1506 * Failure: NULL
1507 */
1508 const SIZE * WINAPI ScriptString_pSize(SCRIPT_STRING_ANALYSIS ssa)
1509 {
1510 unsigned int i, j;
1511 StringAnalysis *analysis = ssa;
1512 TEXTMETRICW metric;
1513
1514 TRACE("(%p)\n", ssa);
1515
1516 if (!analysis) return NULL;
1517
1518 if (!analysis->sz)
1519 {
1520 if (!(analysis->sz = HeapAlloc(GetProcessHeap(), 0, sizeof(SIZE))))
1521 return NULL;
1522
1523 /* FIXME: These values should be calculated at a more
1524 * appropriate place so that we can just pass cached
1525 * values here.
1526 */
1527 if (!GetTextMetricsW(analysis->hdc, &metric))
1528 {
1529 HeapFree(GetProcessHeap(), 0, analysis->sz);
1530 analysis->sz = NULL;
1531 return NULL;
1532 }
1533 analysis->sz->cy = metric.tmHeight;
1534
1535 analysis->sz->cx = 0;
1536 for (i = 0; i < analysis->numItems; i++)
1537 for (j = 0; j < analysis->glyphs[i].numGlyphs; j++)
1538 analysis->sz->cx += analysis->glyphs[i].piAdvance[j];
1539 }
1540 return analysis->sz;
1541 }
1542
1543 /***********************************************************************
1544 * ScriptString_pLogAttr (USP10.@)
1545 *
1546 * Retrieve logical attributes of an analysed string.
1547 *
1548 * PARAMS
1549 * ssa [I] string analysis.
1550 *
1551 * RETURNS
1552 * Success: Pointer to an array of SCRIPT_LOGATTR structures.
1553 * Failure: NULL
1554 */
1555 const SCRIPT_LOGATTR * WINAPI ScriptString_pLogAttr(SCRIPT_STRING_ANALYSIS ssa)
1556 {
1557 StringAnalysis *analysis = ssa;
1558
1559 TRACE("(%p)\n", ssa);
1560
1561 if (!analysis) return NULL;
1562 return analysis->logattrs;
1563 }
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