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text.cpp

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Last change on this file was 21997, checked in by dmik, 13 years ago

gdi32: Fix lost text in TextOut when used with non-identity trasformation matrix.

This was a regression of r21628 wchich I completely reverted. See #81 for details.

File size: 26.2 KB

Line
1	/* $Id: text.cpp,v 1.45 2004-05-07 10:27:50 sandervl Exp $ */
2
3	/*
4	* GDI32 text apis
5	*
6	* Based on Wine/ReWind code (objects\text.c, objects\font.c)
7	*
8	* Copyright 1993, 1994 Alexandre Julliard
9	* 1997 Alex Korobka
10	*
11	* Copyright 1999-2000 Christoph Bratschi
12	* Copyright 2002-2003 Innotek Systemberatung GmbH (sandervl@innotek.de)
13	*
14	* Project Odin Software License can be found in LICENSE.TXT
15	*
16	*/
17	#include <os2win.h>
18	#include <stdlib.h>
19	#include <stdio.h>
20	#include <misc.h>
21	#include <string.h>
22	#include <float.h>
23	#include "oslibgpi.h"
24	#include <dcdata.h>
25	#include <unicode.h>
26	#include "dibsect.h"
27	#include "ft2supp.h"
28	#include "font.h"
29	#include <math.h>
30
31	#define DBG_LOCALLOG DBG_text
32	#include "dbglocal.h"
33
34	#define ELLIPSIS "..."
35	#define ELLIPSISLEN 3
36
37	//******************************************************************************
38	//******************************************************************************
39	CHAR getBrokenDBCS( LPCSTR strA, INT lenA )
40	{
41	int i;
42
43	for( i = 0; i < lenA; i++ )
44	if( IsDBCSLeadByte( strA[ i ]))
45	i++;
46
47	if( lenA < i ) // terminated at DBCS lead byte
48	return strA[ lenA ];
49
50	return 0;
51	}
52	//******************************************************************************
53	//******************************************************************************
54	UINT WINAPI GetTextCharsetInfo(
55	HDC hdc, /* [in] Handle to device context */
56	LPFONTSIGNATURE fs, /* [out] Pointer to struct to receive data */
57	DWORD flags) /* [in] Reserved - must be 0 */
58	{
59	HGDIOBJ hFont;
60	UINT charSet = DEFAULT_CHARSET;
61	LOGFONTW lf;
62	CHARSETINFO csinfo;
63
64	dprintf(("GetTextCharsetInfo %x %x %x", hdc, fs, flags));
65
66	hFont = GetCurrentObject(hdc, OBJ_FONT);
67	if (hFont == 0)
68	return(DEFAULT_CHARSET);
69	if ( GetObjectW(hFont, sizeof(LOGFONTW), &lf) != 0 )
70	charSet = lf.lfCharSet;
71
72	if (fs != NULL) {
73	if (!TranslateCharsetInfo((LPDWORD)charSet, &csinfo, TCI_SRCCHARSET))
74	return (DEFAULT_CHARSET);
75	memcpy(fs, &csinfo.fs, sizeof(FONTSIGNATURE));
76	}
77	return charSet;
78	}
79	/***********************************************************************
80	* GetTextCharset32 [GDI32.226] Gets character set for font in DC
81	*
82	* NOTES
83	* Should it return a UINT32 instead of an INT32?
84	* => YES, as GetTextCharsetInfo returns UINT32
85	*
86	* RETURNS
87	* Success: Character set identifier
88	* Failure: DEFAULT_CHARSET
89	*/
90	UINT WINAPI GetTextCharset(HDC hdc) /* [in] Handle to device context */
91	{
92	/* MSDN docs say this is equivalent */
93	return GetTextCharsetInfo(hdc, NULL, 0);
94	}
95	//******************************************************************************
96	// todo: metafile support
97	//#undef INVERT
98	//#define INVERT_SETYINVERSION
99	//******************************************************************************
100	BOOL InternalTextOutAW(HDC hdc,int X,int Y,UINT fuOptions,
101	CONST RECT *lprc, LPCSTR lpszStringA, LPCWSTR lpszStringW,
102	INT cbCount,CONST INT *lpDx,BOOL IsExtTextOut, BOOL fUnicode)
103	{
104	pDCData pHps = (pDCData)OSLibGpiQueryDCData(hdc);
105	ULONG flOptions = 0;
106	RECTLOS2 pmRect;
107	POINTLOS2 ptl;
108	LONG hits;
109	RECT rect;
110
111	if (!pHps \|\| (cbCount < 0) \|\| (((lpszStringA == NULL && !fUnicode) \|\| (lpszStringW == NULL && fUnicode)) && (cbCount != 0)))
112	{
113	dprintf(("InternalTextOutA: invalid parameter"));
114	SetLastError(ERROR_INVALID_HANDLE);
115	return FALSE;
116	}
117
118	if(cbCount == -1) {
119	if(fUnicode)
120	cbCount = lstrlenW(lpszStringW);
121	else cbCount = lstrlenA(lpszStringA);
122	}
123
124	if (cbCount > 512)
125	{
126	dprintf(("InternalTextOutA: invalid parameter cbCount"));
127	SetLastError(ERROR_INVALID_PARAMETER);
128	return FALSE;
129	}
130	if (fuOptions & ~((UINT)(ETO_CLIPPED \| ETO_OPAQUE \| ETO_GLYPH_INDEX)))
131	{
132	dprintf(("InternalTextOutA: invalid fuOptions"));
133	//ETO_GLYPH_INDEX, ETO_RTLLEADING, ETO_NUMERICSLOCAL, ETO_NUMERICSLATIN, ETO_IGNORELANGUAGE, ETO_PDY are ignored
134	return TRUE;
135	}
136
137	#if defined(INVERT) && !defined(INVERT_SETYINVERSION)
138	if(pHps->yInvert > 0) {
139	Y = pHps->yInvert - Y;
140	}
141	#endif
142
143	#ifdef INVERT_SETYINVERSION
144	int oldyinv = GpiQueryYInversion(pHps->hps);
145	Y = oldyinv - Y;
146	#endif
147
148	// When using font association, the height of DBCS and SBCS chars may be different.
149	// In this case, background color make stair below chars
150	if( IsDBCSEnv() && !lprc && ( GetBkMode( hdc ) & OPAQUE ))
151	{
152	SIZE size;
153	TEXTMETRICA tmA;
154
155	if( fUnicode )
156	GetTextExtentPointW( hdc, lpszStringW, cbCount, &size );
157	else
158	GetTextExtentPointA( hdc, lpszStringA, cbCount, &size );
159
160	GetTextMetricsA( hdc, &tmA );
161
162	rect.left = X;
163	rect.right = X + size.cx;
164	rect.top = Y;
165	rect.bottom = Y + tmA.tmHeight;
166
167	lprc = &rect;
168	fuOptions \|= ETO_OPAQUE;
169	}
170
171	//CB: add metafile info
172
173	if (lprc)
174	{
175	if (fuOptions)
176	{
177	MapWin32ToOS2Rect(*lprc,pmRect);
178	if (excludeBottomRightPoint(pHps,(PPOINTLOS2)&pmRect) == 0)
179	{
180	dprintf(("InternalTextOutA: excludeBottomRightPoint returned 0"));
181	return TRUE;
182	}
183	#ifndef INVERT
184	#ifdef INVERT_SETYINVERSION
185	if (oldyinv) {
186	int temp = oldyinv - pmRect.yTop;
187	pmRect.yTop = oldyinv - pmRect.yBottom;
188	pmRect.yBottom = temp;
189	}
190	#else
191	if (pHps->yInvert > 0) {
192	int temp = pHps->yInvert - pmRect.yTop;
193	pmRect.yTop = pHps->yInvert - pmRect.yBottom;
194	pmRect.yBottom = temp;
195	}
196	#endif
197	#endif
198
199	if (fuOptions & ETO_CLIPPED) flOptions \|= CHSOS_CLIP;
200	if (fuOptions & ETO_OPAQUE) flOptions \|= CHSOS_OPAQUE;
201	}
202	}
203	else
204	{
205	if (fuOptions & ~ETO_GLYPH_INDEX)
206	{
207	dprintf(("InternalTextOutA: ERROR_INVALID_PARAMETER"));
208	SetLastError(ERROR_INVALID_PARAMETER);
209	return FALSE;
210	}
211	}
212
213	if((lpszStringA \|\| lpszStringW) && cbCount) {
214	DIBSECTION_CHECK_IF_DIRTY(hdc);
215	}
216
217	if (cbCount == 0)
218	{
219	if (fuOptions & ETO_OPAQUE)
220	{
221	//SvL: This doesn't seem to work (anymore). Look at MFC apps for the missing border
222	// between menu & button bar (all white). (e.g. odin app & acrobat reader 4.05)
223	#if 0
224	lpszString = " ";
225	cbCount = 1;
226	flOptions \|= CHSOS_CLIP;
227	#else
228	HBRUSH hbrush = CreateSolidBrush(GetBkColor(hdc));
229	HBRUSH oldbrush;
230
231	oldbrush = SelectObject(hdc, hbrush);
232	FillRect(hdc, lprc, hbrush);
233	SelectObject(hdc, oldbrush);
234	DeleteObject(hbrush);
235
236	DIBSECTION_MARK_INVALID(hdc);
237
238	return TRUE;
239	#endif
240	}
241	else {
242	dprintf(("InternalTextOutA: cbCount == 0"));
243	return TRUE;
244	}
245	}
246
247	#ifdef INVERT_SETYINVERSION
248	GpiEnableYInversion(pHps->hps, 0);
249	#endif
250
251	if (lpDx)
252	flOptions \|= CHSOS_VECTOR;
253
254	if (!getAlignUpdateCP(pHps))
255	{
256	ptl.x = X;
257	ptl.y = Y;
258
259	flOptions \|= CHSOS_LEAVEPOS;
260	}
261	else OSLibGpiQueryCurrentPosition(pHps,&ptl);
262
263	UINT align = GetTextAlign(hdc);
264	LONG pmHAlign,pmVAlign;
265
266	#if 0
267	//SvL: This code is broken. TODO: Investigate
268	//CB: TA_RIGHT not supported by PM, only TA_CENTER and TA_LEFT
269	if ((align & 0x6) == TA_RIGHT)
270	{
271	BOOL rc;
272	PPOINTLOS2 pts = (PPOINTLOS2)malloc((cbCount+1)*sizeof(POINTLOS2));
273
274	rc = OSLibGpiQueryCharStringPosAt(pHps,&ptl,flOptions & CHSOS_VECTOR,cbCount,lpszString,lpDx,pts);
275	if(rc) {
276	for(int i=0;i<cbCount+1;i++) {
277	dprintf(("OSLibGpiQueryCharStringPosAt %d (%d,%d)", pts[i].x, pts[i].y));
278	}
279	ptl.x -= pts[cbCount].x-pts[0].x;
280	}
281	free(pts);
282	}
283	#endif
284
285	if (lprc && ((align & 0x18) == TA_BASELINE))
286	{
287	//CB: if TA_BASELINE is set, GPI doesn't fill rect
288	// TA_BOTTOM fills rect
289	OSLibGpiQueryTextAlignment(pHps,&pmHAlign,&pmVAlign);
290	OSLibGpiSetTextAlignment(pHps,pmHAlign,(pmVAlign & ~TAOS_BASE) \| TAOS_BOTTOM);
291	}
292
293	#ifdef INVERT
294	ptl.y += getWorldYDeltaFor1Pixel(pHps);
295	#else
296	ptl.y -= getWorldYDeltaFor1Pixel(pHps);
297
298	int vertAdjust = 0;
299	if ((pHps->taMode & 0x18) != TA_TOP)
300	{
301	vertAdjust = OSLibGpiQueryFontMaxHeight(pHps->hps);
302	}
303	ptl.y -= vertAdjust;
304	#endif
305
306	if(fUnicode)
307	hits = FT2Module.Ft2CharStringPosAtW(pHps->hps,&ptl,&pmRect,flOptions,cbCount,lpszStringW,lpDx, fuOptions & ETO_GLYPH_INDEX);
308	else
309	{
310	INT *lpDxNew = NULL;
311
312	// KOMH : OS/2 uses width of lead byte for whole DBCS width and is not concerned about
313	// trail byte, while Win can apportion width between lead byte and trail byte
314	if( IsDBCSEnv() && lpDx )
315	{
316	int i;
317
318	lpDxNew = ( INT * )malloc(( cbCount + 1 ) * sizeof( INT )); // 1 for broken DBCS char
319	for( i = 0; i < cbCount; i++ )
320	{
321	lpDxNew[ i ] = lpDx[ i ];
322	if( IsDBCSLeadByte( lpszStringA[ i ] ))
323	{
324	lpDxNew[ i ] += lpDx[ i + 1 ];
325	lpDxNew[ ++i ] = 0; // for the sake of possibility
326	}
327	}
328
329	lpDx = lpDxNew;
330	}
331
332	hits = FT2Module.Ft2CharStringPosAtA(pHps->hps,&ptl,&pmRect,flOptions,cbCount,lpszStringA,lpDx, fuOptions & ETO_GLYPH_INDEX);
333
334	if( lpDxNew )
335	free( lpDxNew );
336	}
337
338	if (lprc && ((align & 0x18) == TA_BASELINE))
339	OSLibGpiSetTextAlignment(pHps,pmHAlign,pmVAlign);
340
341	if(hits == GPIOS_ERROR) {
342	dprintf(("InternalTextOutA: OSLibGpiCharStringPosAt returned GPIOS_ERROR"));
343	#ifdef INVERT_SETYINVERSION
344	GpiEnableYInversion(pHps->hps, oldyinv);
345	#endif
346	return FALSE;
347	}
348
349	if (getAlignUpdateCP(pHps))
350	{
351	OSLibGpiQueryCurrentPosition(pHps,&ptl);
352	ptl.y -= getWorldYDeltaFor1Pixel(pHps);
353	#ifndef INVERT
354	ptl.y += vertAdjust;
355	#endif
356	OSLibGpiSetCurrentPosition(pHps,&ptl);
357	}
358
359	#ifdef INVERT_SETYINVERSION
360	GpiEnableYInversion(pHps->hps, oldyinv);
361	#endif
362
363	DIBSECTION_MARK_INVALID(hdc);
364
365	return TRUE;
366	}
367	//******************************************************************************
368	//******************************************************************************
369	BOOL WIN32API ExtTextOutA(HDC hdc,int X,int Y,UINT fuOptions,CONST RECT lprc,LPCSTR lpszString,UINT cbCount,CONST INT lpDx)
370	{
371	BOOL rc;
372	SIZE size;
373	int newy;
374
375	if(lprc)
376	{
377	dprintf(("GDI32: ExtTextOutA %x %.*s (%d,%d) %x %d %x rect (%d,%d)(%d,%d)", hdc, cbCount, lpszString, X, Y, fuOptions, cbCount, lpDx, lprc->left, lprc->top, lprc->right, lprc->bottom));
378	}
379	else dprintf(("GDI32: ExtTextOutA %x %.*s (%d,%d) %x %d %x", hdc, cbCount, lpszString, X, Y, fuOptions, cbCount, lpDx));
380
381	if(lpDx) {
382	for(int i=0;i<cbCount;i++) {
383	dprintf2(("Inc %d", lpDx[i]));
384	}
385	}
386
387	rc = InternalTextOutAW(hdc, X, Y, fuOptions, lprc, lpszString, NULL, cbCount, lpDx, TRUE, FALSE);
388
389	return(rc);
390	}
391	//******************************************************************************
392	//******************************************************************************
393	BOOL WIN32API ExtTextOutW(HDC hdc,int X,int Y,UINT fuOptions,CONST RECT lprc,LPCWSTR lpszString,UINT cbCount,CONST int lpDx)
394	{
395	if(lprc) {
396	dprintf(("GDI32: ExtTextOutW %x %.*ls (%d,%d) %x %d %x rect (%d,%d)(%d,%d)", hdc, cbCount, lpszString, X, Y, fuOptions, cbCount, lpDx, lprc->left, lprc->top, lprc->right, lprc->bottom));
397	}
398	else dprintf(("GDI32: ExtTextOutW %x %.*ls (%d,%d) %x %d %x", hdc, cbCount, lpszString, X, Y, fuOptions, cbCount, lpDx));
399
400	return InternalTextOutAW(hdc, X, Y, fuOptions, lprc, NULL, lpszString, cbCount, lpDx, TRUE, TRUE);
401	}
402	//******************************************************************************
403	//******************************************************************************
404	BOOL WIN32API TextOutA(HDC hdc,int nXStart,int nYStart,LPCSTR lpszString,int cbString)
405	{
406	dprintf(("GDI32: TextOutA %x (%d,%d) %d %.*s", hdc, nXStart, nYStart, cbString, cbString, lpszString));
407	return InternalTextOutAW(hdc,nXStart,nYStart,0,NULL,lpszString,NULL,cbString,NULL,FALSE, FALSE);
408	}
409	//******************************************************************************
410	//******************************************************************************
411	BOOL WIN32API TextOutW(HDC hdc,int nXStart,int nYStart,LPCWSTR lpszString,int cbString)
412	{
413	dprintf(("GDI32: TextOutW %x (%d,%d) %d %.*ls", hdc, nXStart, nYStart, cbString, cbString, lpszString));
414	return InternalTextOutAW(hdc,nXStart,nYStart,0,NULL, NULL, lpszString,cbString,NULL,FALSE, TRUE);
415	}
416	//******************************************************************************
417	//******************************************************************************
418	BOOL WIN32API PolyTextOutA(HDC hdc,POLYTEXTA *pptxt,int cStrings)
419	{
420	dprintf(("GDI32: PolyTextOutA %x %x %d", hdc, pptxt, cStrings));
421
422	for (INT x = 0;x < cStrings;x++)
423	{
424	BOOL rc;
425
426	rc = ExtTextOutA(hdc,pptxt[x].x,pptxt[x].y,pptxt[x].uiFlags,&pptxt[x].rcl,pptxt[x].lpstr, pptxt[x].n,pptxt[x].pdx);
427	if (!rc) return FALSE;
428	}
429
430	return TRUE;
431	}
432	//******************************************************************************
433	//******************************************************************************
434	BOOL WIN32API PolyTextOutW(HDC hdc,POLYTEXTW *pptxt,int cStrings)
435	{
436	dprintf(("GDI32: PolyTextOutW %x %x %d", hdc, pptxt, cStrings));
437
438	for (INT x = 0;x < cStrings;x++)
439	{
440	BOOL rc;
441
442	rc = ExtTextOutW(hdc,pptxt[x].x,pptxt[x].y,pptxt[x].uiFlags,&pptxt[x].rcl, pptxt[x].lpstr,pptxt[x].n,pptxt[x].pdx);
443	if (!rc) return FALSE;
444	}
445
446	return TRUE;
447	}
448	//******************************************************************************
449	// Note: GetTextExtentPoint behaves differently under certain circumstances
450	// compared to GetTextExtentPoint32 (due to bugs).
451	// We are treating both as the same thing which is not entirely correct.
452	//
453	//******************************************************************************
454	BOOL WIN32API GetTextExtentPointA(HDC hdc, LPCTSTR lpsz, int cbString,
455	LPSIZE lpsSize)
456	{
457	BOOL ret = FALSE;
458	INT wlen;
459	LPWSTR p;
460	CHAR brokenDBCS = 0;
461
462	if( IsDBCSEnv())
463	brokenDBCS = getBrokenDBCS( lpsz, cbString );
464
465	if( brokenDBCS )
466	cbString--;
467
468	p = FONT_mbtowc(hdc, lpsz, cbString, &wlen, NULL);
469	if (p) {
470	ret = GetTextExtentPointW( hdc, p, wlen, lpsSize );
471	// For broken DBCS. Correct for FIXED WIDTH, but approx. for VARIABLE WIDTH
472	if( brokenDBCS )
473	{
474	TEXTMETRICA tmA;
475
476	GetTextMetricsA( hdc, &tmA );
477	lpsSize->cx += tmA.tmAveCharWidth;
478
479	if( cbString == 0 )
480	lpsSize->cy = tmA.tmHeight;
481	}
482
483	HeapFree( GetProcessHeap(), 0, p );
484	}
485	else DebugInt3();
486	return ret;
487	}
488	//******************************************************************************
489	//******************************************************************************
490	BOOL WIN32API GetTextExtentPointW(HDC hdc,
491	LPCWSTR lpString,
492	int cbString,
493	PSIZE lpSize)
494	{
495	BOOL rc;
496	POINTLOS2 widthHeight = { 0, 0};
497	pDCData pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
498
499	dprintf(("GDI32: GetTextExtentPointW %.*ls", cbString, lpString));
500	if(pHps == NULL)
501	{
502	SetLastError(ERROR_INVALID_HANDLE);
503	return FALSE;
504	}
505
506	if(lpString == NULL \|\| cbString < 0 \|\| lpSize == NULL)
507	{
508	SetLastError(ERROR_INVALID_PARAMETER);
509	return FALSE;
510	}
511
512	lpSize->cx = 0;
513	lpSize->cy = 0;
514
515	// Verified with NT4, SP6
516	if(cbString == 0)
517	{
518	dprintf(("!WARNING!: GDI32: GetTextExtentPointW invalid parameter!"));
519	SetLastError(ERROR_SUCCESS);
520	return TRUE;
521	}
522
523	if(pHps->isPrinter)
524	ReallySetCharAttrs(pHps);
525
526	if(cbString > 512)
527	{
528	DWORD cbStringNew;
529	SIZE newSize;
530
531	dprintf(("WARNING: string longer than 512 chars; splitting up"));
532	while(cbString) {
533	cbStringNew = min(500, cbString);
534	rc = GetTextExtentPointW(hdc, lpString, cbStringNew, &newSize);
535	if(rc == FALSE) {
536	return FALSE;
537	}
538	lpSize->cx += newSize.cx;
539	lpSize->cy = max(newSize.cy, lpSize->cy);
540	lpString += cbStringNew;
541	cbString -= cbStringNew;
542	}
543	return TRUE;
544	}
545
546	rc = FT2Module.Ft2GetTextExtentW(pHps->hps, cbString, lpString, &widthHeight);
547	if(rc == FALSE)
548	{
549	SetLastError(ERROR_INVALID_PARAMETER); //todo wrong error
550	return FALSE;
551	}
552	lpSize->cx = widthHeight.x;
553	lpSize->cy = widthHeight.y;
554
555	if(pHps && pHps->isPrinter && pHps->hdc)
556	{//scale for printer dcs
557	LONG alArray[2];
558
559	if(OSLibDevQueryCaps(pHps, OSLIB_CAPS_HORIZONTAL_RESOLUTION, 2, &alArray[0]))
560	lpSize->cx = lpSize->cx * alArray[0] / alArray[1];
561	}
562
563	dprintf(("GDI32: GetTextExtentPointW %x %ls %d returned %d (%d,%d)", hdc, lpString, cbString, rc, lpSize->cx, lpSize->cy));
564	SetLastError(ERROR_SUCCESS);
565	return TRUE;
566	}
567	//******************************************************************************
568	//******************************************************************************
569	BOOL WIN32API GetTextExtentPoint32A( HDC hdc, LPCSTR lpsz, int cbString, PSIZE lpSize)
570	{
571	return GetTextExtentPointA(hdc, lpsz, cbString, lpSize);
572	}
573	//******************************************************************************
574	//******************************************************************************
575	BOOL WIN32API GetTextExtentPoint32W(HDC hdc, LPCWSTR lpsz, int cbString, PSIZE lpSize)
576	{
577	return GetTextExtentPointW(hdc, lpsz, cbString, lpSize);
578	}
579
580	typedef BOOL ( WIN32API *PFN_GETTEXTEXTENTPOINT32 )( HDC, PVOID, INT, LPSIZE );
581
582	BOOL InternalGetTextExtentExPointAW(HDC hdc,
583	PVOID str,
584	INT count,
585	INT maxExt,
586	LPINT lpnFit,
587	LPINT alpDx,
588	LPSIZE size,
589	BOOL fUnicode)
590	{
591	int i, nFit;
592	SIZE tSize;
593	BOOL ret = FALSE;
594
595	PFN_GETTEXTEXTENTPOINT32 pfnGetTextExtentPoint32;
596
597	if( fUnicode )
598	pfnGetTextExtentPoint32 = ( PFN_GETTEXTEXTENTPOINT32 )GetTextExtentPoint32W;
599	else
600	pfnGetTextExtentPoint32 = ( PFN_GETTEXTEXTENTPOINT32 )GetTextExtentPoint32A;
601
602	size->cx = size->cy = nFit = i = 0;
603
604	if( lpnFit \|\| alpDx )
605	{
606	for( i = 1; i <= count; i++ )
607	{
608	if( !pfnGetTextExtentPoint32( hdc, str, i, &tSize )) goto done;
609
610	if( lpnFit && ( maxExt < tSize.cx ))
611	break;
612
613	if( alpDx )
614	alpDx[ nFit ] = tSize.cx;
615
616	nFit++;
617	}
618	}
619
620	if(( count > 0 ) && ( i >= count ))
621	{
622	size->cx = tSize.cx;
623	size->cy = tSize.cy; // The height of a font is constant.
624	}
625	else if( !pfnGetTextExtentPoint32( hdc, str, count, size )) goto done;
626
627	if(lpnFit) *lpnFit = nFit;
628	ret = TRUE;
629
630	dprintf(("returning %d %ld x %ld\n",nFit,size->cx,size->cy));
631
632	done:
633	return ret;
634	}
635
636	//******************************************************************************
637	//******************************************************************************
638	BOOL WIN32API GetTextExtentExPointA(HDC hdc,
639	LPCSTR str,
640	int count,
641	int maxExt,
642	LPINT lpnFit,
643	LPINT alpDx,
644	LPSIZE size)
645	{
646	return InternalGetTextExtentExPointAW( hdc, ( PVOID )str, count, maxExt, lpnFit, alpDx, size, FALSE );
647	}
648	//******************************************************************************
649	//******************************************************************************
650	BOOL WIN32API GetTextExtentExPointW(HDC hdc,
651	LPCWSTR str,
652	int count,
653	int maxExt,
654	LPINT lpnFit,
655	LPINT alpDx,
656	LPSIZE size)
657	{
658	return InternalGetTextExtentExPointAW( hdc, ( PVOID )str, count, maxExt, lpnFit, alpDx, size, TRUE );
659	}
660	//******************************************************************************
661	//******************************************************************************
662	BOOL WIN32API GetCharWidth32A( HDC hdc, UINT iFirstChar, UINT iLastChar, PINT pWidthArray)
663	{
664	BOOL ret = FALSE;
665
666	for (int i = iFirstChar; i <= iLastChar; i++)
667	{
668	SIZE size;
669	CHAR c = i;
670
671	if (GetTextExtentPointA(hdc, &c, 1, &size))
672	{
673	pWidthArray[i-iFirstChar] = size.cx;
674	// at least one character was processed
675	ret = TRUE;
676	}
677	else
678	{
679	// default value for unprocessed characters
680	pWidthArray[i-iFirstChar] = 0;
681	}
682
683	dprintf2(("Char 0x%x('%c') -> width %d", i, i<256? i: '.', pWidthArray[i-iFirstChar]));
684	}
685
686	return ret;
687	}
688	//******************************************************************************
689	//******************************************************************************
690	BOOL WIN32API GetCharWidth32W(HDC hdc, UINT iFirstChar, UINT iLastChar, PINT pWidthArray)
691	{
692	BOOL ret = FALSE;
693
694	for (int i = iFirstChar; i <= iLastChar; i++)
695	{
696	SIZE size;
697	WCHAR wc = i;
698
699	if (GetTextExtentPointW(hdc, &wc, 1, &size))
700	{
701	pWidthArray[i-iFirstChar] = size.cx;
702	// at least one character was processed
703	ret = TRUE;
704	}
705	else
706	{
707	// default value for unprocessed characters
708	pWidthArray[i-iFirstChar] = 0;
709	}
710
711	dprintf2(("Char 0x%x('%c') -> width %d", i, i<256? i: '.', pWidthArray[i-iFirstChar]));
712	}
713
714	return ret;
715	}
716	//******************************************************************************
717	// GetStringWidthW
718	//
719	// Return the width of each character in the string
720	//
721	// Parameters:
722	// HDC hdc - device context handle
723	// LPWSTR lpszString - unicod string pointer
724	// UINT cbString - number of valid characters in string
725	// PINT pWidthArray - array that receives the character width (must be
726	// large enough to contain cbString elements
727	//
728	// Returns:
729	// FALSE - failure
730	// TRUE - success
731	//
732	//******************************************************************************
733	BOOL WIN32API GetStringWidthW(HDC hdc, LPWSTR lpszString, UINT cbString, PINT pWidthArray)
734	{
735	return FT2Module.Ft2GetStringWidthW(hdc, lpszString, cbString, pWidthArray);
736	}
737	//******************************************************************************
738	//******************************************************************************
739	BOOL WIN32API GetCharWidthFloatA(HDC hdc, UINT iFirstChar, UINT iLastChar, PFLOAT pxBUffer)
740	{
741	dprintf(("ERROR: GDI32: GetCharWidthFloatA, not implemented\n"));
742	DebugInt3();
743	return(FALSE);
744	}
745	//******************************************************************************
746	//******************************************************************************
747	BOOL WIN32API GetCharWidthFloatW(HDC hdc, UINT iFirstChar, UINT iLastChar, PFLOAT pxBUffer)
748	{
749	dprintf(("ERROR: GDI32: GetCharWidthFloatW, not implemented\n"));
750	DebugInt3();
751	return(FALSE);
752	}
753	//******************************************************************************
754	//******************************************************************************
755	BOOL WIN32API GetCharABCWidthsA(HDC hdc, UINT firstChar, UINT lastChar, LPABC abc)
756	{
757	if(FT2Module.isEnabled() == FALSE)
758	{//fallback method
759	return O32_GetCharABCWidths(hdc, firstChar, lastChar, abc);
760	}
761
762	INT i, wlen, count = (INT)(lastChar - firstChar + 1);
763	LPSTR str;
764	LPWSTR wstr;
765	BOOL ret = TRUE;
766
767	if(count <= 0) {
768	dprintf(("ERROR: Invalid parameter!!"));
769	SetLastError(ERROR_INVALID_PARAMETER);
770	return FALSE;
771	}
772
773	str = (LPSTR)HeapAlloc(GetProcessHeap(), 0, count);
774	for(i = 0; i < count; i++)
775	str[i] = (BYTE)(firstChar + i);
776
777	wstr = FONT_mbtowc(hdc, str, count, &wlen, NULL);
778
779	for(i = 0; i < wlen; i++)
780	{
781	if(!GetCharABCWidthsW(hdc, wstr[i], wstr[i], abc))
782	{
783	ret = FALSE;
784	break;
785	}
786	abc++;
787	}
788
789	HeapFree(GetProcessHeap(), 0, str);
790	HeapFree(GetProcessHeap(), 0, wstr);
791
792	return ret;
793	}
794	//******************************************************************************
795	//******************************************************************************
796	BOOL WIN32API GetCharABCWidthsW( HDC hdc, UINT firstChar, UINT lastChar, LPABC abc)
797	{
798	if(FT2Module.isEnabled() == FALSE)
799	{//no fallback method (yet)
800	DebugInt3();
801	return FALSE;
802	}
803
804	int i;
805	GLYPHMETRICS gm;
806
807	for (i=firstChar;i<=lastChar;i++)
808	{
809	if(GetGlyphOutlineW(hdc, i, GGO_METRICS, &gm, 0, NULL, NULL) == GDI_ERROR)
810	{
811	dprintf(("ERROR: GetGlyphOutlineW failed!!"));
812	return FALSE;
813	}
814	abc[i-firstChar].abcA = gm.gmptGlyphOrigin.x;
815	abc[i-firstChar].abcB = gm.gmBlackBoxX;
816	abc[i-firstChar].abcC = gm.gmCellIncX - gm.gmptGlyphOrigin.x - gm.gmBlackBoxX;
817	dprintf2(("GetCharABCWidthsW %d (%d,%d,%d)", i, abc[i-firstChar].abcA, abc[i-firstChar].abcB, abc[i-firstChar].abcC));
818	}
819	return TRUE;
820	}
821	//******************************************************************************
822	//******************************************************************************
823	BOOL WIN32API GetCharABCWidthsFloatA(HDC hdc, UINT iFirstChar, UINT iLastChar, LPABCFLOAT pxBUffer)
824	{
825	dprintf(("ERROR: GDI32: GetCharABCWidthsFloatA, not implemented\n"));
826	DebugInt3();
827	return(FALSE);
828	}
829	//******************************************************************************
830	//******************************************************************************
831	BOOL WIN32API GetCharABCWidthsFloatW(HDC hdc,
832	UINT iFirstChar,
833	UINT iLastChar,
834	LPABCFLOAT pxBUffer)
835	{
836	dprintf(("ERROR: GDI32: GetCharABCWidthsFloatA, not implemented\n"));
837	DebugInt3();
838	return(FALSE);
839	}
840	//******************************************************************************
841	//******************************************************************************
842

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source: trunk/src/gdi32/text.cpp

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