329 lines
9.5 KiB
C
329 lines
9.5 KiB
C
/*
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* text functions
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*
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* Copyright 1993, 1994 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <string.h>
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#include "windef.h"
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#include "wingdi.h"
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#include "wine/winuser16.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "gdi.h"
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#include "wine/debug.h"
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#include "winnls.h"
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WINE_DEFAULT_DEBUG_CHANNEL(text);
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/***********************************************************************
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* FONT_mbtowc
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*
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* Returns a '\0' terminated Unicode translation of str using the
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* charset of the currently selected font in hdc. If count is -1 then
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* str is assumed to be '\0' terminated, otherwise it contains the
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* number of bytes to convert. If plenW is non-NULL, on return it
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* will point to the number of WCHARs (excluding the '\0') that have
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* been written. If pCP is non-NULL, on return it will point to the
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* codepage used in the conversion. The caller should free the
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* returned LPWSTR from the process heap itself.
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*/
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LPWSTR FONT_mbtowc(HDC hdc, LPCSTR str, INT count, INT *plenW, UINT *pCP)
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{
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UINT cp = CP_ACP;
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INT lenW;
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LPWSTR strW;
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CHARSETINFO csi;
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int charset = GetTextCharset(hdc);
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/* Hmm, nicely designed api this one! */
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if(TranslateCharsetInfo((DWORD*)charset, &csi, TCI_SRCCHARSET))
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cp = csi.ciACP;
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else {
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switch(charset) {
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case SYMBOL_CHARSET: /* We don't want any translation here */
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cp = GetACP();
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break;
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case OEM_CHARSET:
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cp = GetOEMCP();
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break;
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case DEFAULT_CHARSET:
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cp = GetACP();
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break;
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case VISCII_CHARSET:
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case TCVN_CHARSET:
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case KOI8_CHARSET:
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case ISO3_CHARSET:
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case ISO4_CHARSET:
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case ISO10_CHARSET:
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case CELTIC_CHARSET:
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/* FIXME: These have no place here, but because x11drv
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enumerates fonts with these (made up) charsets some apps
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might use them and then the FIXME below would become
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annoying. Now we could pick the intended codepage for
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each of these, but since it's broken anyway we'll just
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use CP_ACP and hope it'll go away...
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*/
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cp = CP_ACP;
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break;
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default:
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FIXME("Can't find codepage for charset %d\n", charset);
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break;
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}
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}
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lenW = MultiByteToWideChar(cp, 0, str, count, NULL, 0);
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strW = HeapAlloc(GetProcessHeap(), 0, (lenW + 1) * sizeof(WCHAR));
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MultiByteToWideChar(cp, 0, str, count, strW, lenW);
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strW[lenW] = '\0';
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if(plenW) *plenW = lenW;
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if(pCP) *pCP = cp;
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return strW;
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}
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/***********************************************************************
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* ExtTextOut (GDI.351)
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*/
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BOOL16 WINAPI ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags,
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const RECT16 *lprect, LPCSTR str, UINT16 count,
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const INT16 *lpDx )
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{
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BOOL ret;
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int i;
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RECT rect32;
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LPINT lpdx32 = NULL;
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if (lpDx) {
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lpdx32 = (LPINT)HeapAlloc( GetProcessHeap(),0, sizeof(INT)*count );
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if(lpdx32 == NULL) return FALSE;
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for (i=count;i--;) lpdx32[i]=lpDx[i];
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}
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if (lprect) CONV_RECT16TO32(lprect,&rect32);
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ret = ExtTextOutA(hdc,x,y,flags,lprect?&rect32:NULL,str,count,lpdx32);
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if (lpdx32) HeapFree( GetProcessHeap(), 0, lpdx32 );
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return ret;
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}
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/***********************************************************************
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* ExtTextOutA (GDI32.@)
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*/
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BOOL WINAPI ExtTextOutA( HDC hdc, INT x, INT y, UINT flags,
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const RECT *lprect, LPCSTR str, UINT count, const INT *lpDx )
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{
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INT wlen;
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UINT codepage;
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LPWSTR p = FONT_mbtowc(hdc, str, count, &wlen, &codepage);
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BOOL ret;
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LPINT lpDxW = NULL;
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if (lpDx) {
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unsigned int i = 0, j = 0;
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lpDxW = (LPINT)HeapAlloc( GetProcessHeap(), 0, wlen*sizeof(INT));
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while(i < count) {
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if(IsDBCSLeadByteEx(codepage, str[i])) {
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lpDxW[j++] = lpDx[i] + lpDx[i+1];
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i = i + 2;
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} else {
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lpDxW[j++] = lpDx[i];
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i = i + 1;
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}
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}
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}
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ret = ExtTextOutW( hdc, x, y, flags, lprect, p, wlen, lpDxW );
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HeapFree( GetProcessHeap(), 0, p );
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if (lpDxW) HeapFree( GetProcessHeap(), 0, lpDxW );
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return ret;
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}
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/***********************************************************************
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* ExtTextOutW (GDI32.@)
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*/
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BOOL WINAPI ExtTextOutW( HDC hdc, INT x, INT y, UINT flags,
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const RECT *lprect, LPCWSTR str, UINT count, const INT *lpDx )
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{
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BOOL ret = FALSE;
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DC * dc = DC_GetDCUpdate( hdc );
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if (dc)
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{
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if(PATH_IsPathOpen(dc->path))
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FIXME("called on an open path\n");
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else if(dc->funcs->pExtTextOut)
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{
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DWORD fontLangInfo=0;
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if( !(flags&(ETO_GLYPH_INDEX|ETO_IGNORELANGUAGE)) &&
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((fontLangInfo=GetFontLanguageInfo( hdc ))&(GCP_REORDER|GCP_GLYPHSHAPE)) )
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{
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/* The caller did not specify that language processing was already done,
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* and the font idetifies iteself as requiring language processing.
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*/
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GCP_RESULTSW gcp;
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gcp.lStructSize=sizeof(gcp);
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gcp.lpOutString=HeapAlloc(GetProcessHeap(), 0, count*sizeof(WCHAR));
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gcp.lpOrder=NULL;
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gcp.lpDx=NULL;
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gcp.lpCaretPos=NULL;
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gcp.lpClass=NULL;
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gcp.lpGlyphs=NULL;
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gcp.nGlyphs=0;
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gcp.nMaxFit=0;
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GetCharacterPlacementW(hdc, str, count, 0, &gcp, GCP_REORDER );
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ret = dc->funcs->pExtTextOut(dc->physDev,x,y,flags|ETO_IGNORELANGUAGE,
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lprect,gcp.lpOutString,count,lpDx);
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} else
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ret = dc->funcs->pExtTextOut(dc->physDev,x,y,flags,lprect,str,count,lpDx);
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}
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GDI_ReleaseObj( hdc );
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}
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return ret;
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}
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/***********************************************************************
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* TextOut (GDI.33)
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*/
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BOOL16 WINAPI TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count )
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{
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return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* TextOutA (GDI32.@)
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*/
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BOOL WINAPI TextOutA( HDC hdc, INT x, INT y, LPCSTR str, INT count )
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{
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return ExtTextOutA( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* TextOutW (GDI32.@)
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*/
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BOOL WINAPI TextOutW(HDC hdc, INT x, INT y, LPCWSTR str, INT count)
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{
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return ExtTextOutW( hdc, x, y, 0, NULL, str, count, NULL );
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}
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/***********************************************************************
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* GetTextCharset [GDI32.@] Gets character set for font in DC
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*
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* NOTES
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* Should it return a UINT32 instead of an INT32?
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* => YES, as GetTextCharsetInfo returns UINT32
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*
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* RETURNS
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* Success: Character set identifier
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* Failure: DEFAULT_CHARSET
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*/
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UINT WINAPI GetTextCharset(
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HDC hdc) /* [in] Handle to device context */
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{
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/* MSDN docs say this is equivalent */
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return GetTextCharsetInfo(hdc, NULL, 0);
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}
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/***********************************************************************
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* GetTextCharset [GDI.612]
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*/
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UINT16 WINAPI GetTextCharset16(HDC16 hdc)
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{
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return (UINT16)GetTextCharset(hdc);
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}
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/***********************************************************************
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* GetTextCharsetInfo [GDI32.@] Gets character set for font
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*
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* NOTES
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* Should csi be an LPFONTSIGNATURE instead of an LPCHARSETINFO?
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* Should it return a UINT32 instead of an INT32?
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* => YES and YES, from win32.hlp from Borland
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*
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* This returns the actual charset selected by the driver rather than the
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* value in lf.lfCharSet during CreateFont, to get that use
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* GetObject(GetCurrentObject(...),...)
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*
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* RETURNS
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* Success: Character set identifier
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* Failure: DEFAULT_CHARSET
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*/
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UINT WINAPI GetTextCharsetInfo(
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HDC hdc, /* [in] Handle to device context */
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LPFONTSIGNATURE fs, /* [out] Pointer to struct to receive data */
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DWORD flags) /* [in] Reserved - must be 0 */
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{
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UINT charSet = DEFAULT_CHARSET;
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CHARSETINFO csinfo;
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TEXTMETRICW tm;
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if(!GetTextMetricsW(hdc, &tm)) return DEFAULT_CHARSET;
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charSet = tm.tmCharSet;
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if (fs != NULL) {
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if (!TranslateCharsetInfo((LPDWORD)charSet, &csinfo, TCI_SRCCHARSET))
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return DEFAULT_CHARSET;
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memcpy(fs, &csinfo.fs, sizeof(FONTSIGNATURE));
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}
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return charSet;
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}
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/***********************************************************************
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* PolyTextOutA (GDI32.@)
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*
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* Draw several Strings
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*/
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BOOL WINAPI PolyTextOutA (
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HDC hdc, /* [in] Handle to device context */
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PPOLYTEXTA pptxt, /* [in] Array of strings */
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INT cStrings /* [in] Number of strings in array */
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)
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{
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FIXME("stub!\n");
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SetLastError ( ERROR_CALL_NOT_IMPLEMENTED );
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return 0;
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}
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/***********************************************************************
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* PolyTextOutW (GDI32.@)
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*
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* Draw several Strings
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*/
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BOOL WINAPI PolyTextOutW (
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HDC hdc, /* [in] Handle to device context */
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PPOLYTEXTW pptxt, /* [in] Array of strings */
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INT cStrings /* [in] Number of strings in array */
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)
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{
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FIXME("stub!\n");
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SetLastError ( ERROR_CALL_NOT_IMPLEMENTED );
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return 0;
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}
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