477 lines
14 KiB
C
477 lines
14 KiB
C
/*
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* PostScript driver font functions
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*
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* Copyright 1998 Huw D M Davies
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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 <stdlib.h> /* for bsearch() */
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#include "winspool.h"
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#include "psdrv.h"
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#include "wine/debug.h"
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#include "winerror.h"
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WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
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/***********************************************************************
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* is_stock_font
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*/
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inline static BOOL is_stock_font( HFONT font )
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{
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int i;
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for (i = OEM_FIXED_FONT; i <= DEFAULT_GUI_FONT; i++)
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{
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if (i != DEFAULT_PALETTE && font == GetStockObject(i)) return TRUE;
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}
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return FALSE;
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}
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/*******************************************************************************
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* ScaleFont
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*
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* Scale font to requested lfHeight
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*
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*/
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inline static float round(float f)
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{
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return (f > 0) ? (f + 0.5) : (f - 0.5);
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}
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static VOID ScaleFont(const AFM *afm, LONG lfHeight, PSFONT *font,
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TEXTMETRICW *tm)
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{
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const WINMETRICS *wm = &(afm->WinMetrics);
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USHORT usUnitsPerEm, usWinAscent, usWinDescent;
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SHORT sAscender, sDescender, sLineGap, sTypoAscender;
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SHORT sTypoDescender, sTypoLineGap, sAvgCharWidth;
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TRACE("'%s' %li\n", afm->FontName, lfHeight);
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if (lfHeight < 0) /* match em height */
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{
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font->scale = - ((float)lfHeight / (float)(wm->usUnitsPerEm));
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}
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else /* match cell height */
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{
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font->scale = (float)lfHeight /
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(float)(wm->usWinAscent + wm->usWinDescent);
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}
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font->size = (INT)round(font->scale * (float)wm->usUnitsPerEm);
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font->set = FALSE;
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usUnitsPerEm = (USHORT)round((float)(wm->usUnitsPerEm) * font->scale);
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sAscender = (SHORT)round((float)(wm->sAscender) * font->scale);
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sDescender = (SHORT)round((float)(wm->sDescender) * font->scale);
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sLineGap = (SHORT)round((float)(wm->sLineGap) * font->scale);
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sTypoAscender = (SHORT)round((float)(wm->sTypoAscender) * font->scale);
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sTypoDescender = (SHORT)round((float)(wm->sTypoDescender) * font->scale);
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sTypoLineGap = (SHORT)round((float)(wm->sTypoLineGap) * font->scale);
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usWinAscent = (USHORT)round((float)(wm->usWinAscent) * font->scale);
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usWinDescent = (USHORT)round((float)(wm->usWinDescent) * font->scale);
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sAvgCharWidth = (SHORT)round((float)(wm->sAvgCharWidth) * font->scale);
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tm->tmAscent = (LONG)usWinAscent;
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tm->tmDescent = (LONG)usWinDescent;
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tm->tmHeight = tm->tmAscent + tm->tmDescent;
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tm->tmInternalLeading = tm->tmHeight - (LONG)usUnitsPerEm;
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if (tm->tmInternalLeading < 0)
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tm->tmInternalLeading = 0;
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tm->tmExternalLeading =
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(LONG)(sAscender - sDescender + sLineGap) - tm->tmHeight;
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if (tm->tmExternalLeading < 0)
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tm->tmExternalLeading = 0;
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tm->tmAveCharWidth = (LONG)sAvgCharWidth;
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tm->tmWeight = afm->Weight;
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tm->tmItalic = (afm->ItalicAngle != 0.0);
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tm->tmUnderlined = 0;
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tm->tmStruckOut = 0;
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tm->tmFirstChar = (WCHAR)(afm->Metrics[0].UV);
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tm->tmLastChar = (WCHAR)(afm->Metrics[afm->NumofMetrics - 1].UV);
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tm->tmDefaultChar = 0x001f; /* Win2K does this - FIXME? */
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tm->tmBreakChar = tm->tmFirstChar; /* should be 'space' */
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tm->tmPitchAndFamily = TMPF_DEVICE | TMPF_VECTOR;
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if (!afm->IsFixedPitch)
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tm->tmPitchAndFamily |= TMPF_FIXED_PITCH; /* yes, it's backwards */
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if (wm->usUnitsPerEm != 1000)
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tm->tmPitchAndFamily |= TMPF_TRUETYPE;
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tm->tmCharSet = ANSI_CHARSET; /* FIXME */
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tm->tmOverhang = 0;
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/*
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* This is kludgy. font->scale is used in several places in the driver
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* to adjust PostScript-style metrics. Since these metrics have been
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* "normalized" to an em-square size of 1000, font->scale needs to be
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* similarly adjusted..
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*/
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font->scale *= (float)wm->usUnitsPerEm / 1000.0;
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tm->tmMaxCharWidth = (LONG)round(
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(afm->FontBBox.urx - afm->FontBBox.llx) * font->scale);
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TRACE("Selected PS font '%s' size %d weight %ld.\n", afm->FontName,
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font->size, tm->tmWeight );
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TRACE("H = %ld As = %ld Des = %ld IL = %ld EL = %ld\n", tm->tmHeight,
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tm->tmAscent, tm->tmDescent, tm->tmInternalLeading,
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tm->tmExternalLeading);
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}
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/***********************************************************************
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* PSDRV_FONT_SelectObject
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*/
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HFONT PSDRV_FONT_SelectObject( DC * dc, HFONT hfont )
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{
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LOGFONTW lf;
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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BOOL bd = FALSE, it = FALSE;
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AFMLISTENTRY *afmle;
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FONTFAMILY *family;
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char FaceName[LF_FACESIZE];
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if (!GetObjectW( hfont, sizeof(lf), &lf )) return 0;
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TRACE("FaceName = %s Height = %ld Italic = %d Weight = %ld\n",
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debugstr_w(lf.lfFaceName), lf.lfHeight, lf.lfItalic,
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lf.lfWeight);
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if(lf.lfItalic)
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it = TRUE;
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if(lf.lfWeight > 550)
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bd = TRUE;
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WideCharToMultiByte(CP_ACP, 0, lf.lfFaceName, -1,
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FaceName, sizeof(FaceName), NULL, NULL);
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if(FaceName[0] == '\0') {
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switch(lf.lfPitchAndFamily & 0xf0) {
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case FF_DONTCARE:
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break;
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case FF_ROMAN:
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case FF_SCRIPT:
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strcpy(FaceName, "Times");
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break;
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case FF_SWISS:
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strcpy(FaceName, "Helvetica");
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break;
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case FF_MODERN:
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strcpy(FaceName, "Courier");
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break;
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case FF_DECORATIVE:
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strcpy(FaceName, "Symbol");
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break;
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}
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}
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if(FaceName[0] == '\0') {
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switch(lf.lfPitchAndFamily & 0x0f) {
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case VARIABLE_PITCH:
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strcpy(FaceName, "Times");
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break;
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default:
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strcpy(FaceName, "Courier");
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break;
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}
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}
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if (physDev->pi->FontSubTableSize != 0)
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{
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DWORD i;
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for (i = 0; i < physDev->pi->FontSubTableSize; ++i)
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{
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if (!strcasecmp (FaceName,
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physDev->pi->FontSubTable[i].pValueName))
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{
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TRACE ("substituting facename '%s' for '%s'\n",
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(LPSTR) physDev->pi->FontSubTable[i].pData, FaceName);
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if (strlen ((LPSTR) physDev->pi->FontSubTable[i].pData) <
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LF_FACESIZE)
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strcpy (FaceName,
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(LPSTR) physDev->pi->FontSubTable[i].pData);
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else
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WARN ("Facename '%s' is too long; ignoring substitution\n",
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(LPSTR) physDev->pi->FontSubTable[i].pData);
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break;
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}
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}
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}
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TRACE("Trying to find facename '%s'\n", FaceName);
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/* Look for a matching font family */
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for(family = physDev->pi->Fonts; family; family = family->next) {
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if(!strcasecmp(FaceName, family->FamilyName))
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break;
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}
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if(!family) {
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/* Fallback for Window's font families to common PostScript families */
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if(!strcmp(FaceName, "Arial"))
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strcpy(FaceName, "Helvetica");
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else if(!strcmp(FaceName, "System"))
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strcpy(FaceName, "Helvetica");
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else if(!strcmp(FaceName, "Times New Roman"))
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strcpy(FaceName, "Times");
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else if(!strcmp(FaceName, "Courier New"))
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strcpy(FaceName, "Courier");
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for(family = physDev->pi->Fonts; family; family = family->next) {
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if(!strcmp(FaceName, family->FamilyName))
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break;
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}
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}
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/* If all else fails, use the first font defined for the printer */
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if(!family)
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family = physDev->pi->Fonts;
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TRACE("Got family '%s'\n", family->FamilyName);
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for(afmle = family->afmlist; afmle; afmle = afmle->next) {
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if( (bd == (afmle->afm->Weight == FW_BOLD)) &&
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(it == (afmle->afm->ItalicAngle != 0.0)) )
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break;
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}
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if(!afmle)
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afmle = family->afmlist; /* not ideal */
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TRACE("Got font '%s'\n", afmle->afm->FontName);
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physDev->font.afm = afmle->afm;
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/* stock fonts ignore the mapping mode */
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if (!is_stock_font( hfont )) lf.lfHeight = INTERNAL_YWSTODS(dc, lf.lfHeight);
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ScaleFont(physDev->font.afm, lf.lfHeight,
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&(physDev->font), &(physDev->font.tm));
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physDev->font.escapement = lf.lfEscapement;
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/* Does anyone know if these are supposed to be reversed like this? */
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physDev->font.tm.tmDigitizedAspectX = physDev->logPixelsY;
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physDev->font.tm.tmDigitizedAspectY = physDev->logPixelsX;
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return TRUE; /* We'll use a device font for now */
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}
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/***********************************************************************
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* PSDRV_GetTextMetrics
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*/
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BOOL PSDRV_GetTextMetrics(DC *dc, TEXTMETRICW *metrics)
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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memcpy(metrics, &(physDev->font.tm), sizeof(physDev->font.tm));
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return TRUE;
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}
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/******************************************************************************
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* PSDRV_UVMetrics
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*
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* Find the AFMMETRICS for a given UV. Returns first glyph in the font
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* (space?) if the font does not have a glyph for the given UV.
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*/
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static int MetricsByUV(const void *a, const void *b)
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{
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return (int)(((const AFMMETRICS *)a)->UV - ((const AFMMETRICS *)b)->UV);
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}
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const AFMMETRICS *PSDRV_UVMetrics(LONG UV, const AFM *afm)
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{
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AFMMETRICS key;
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const AFMMETRICS *needle;
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/*
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* Ugly work-around for symbol fonts. Wine is sending characters which
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* belong in the Unicode private use range (U+F020 - U+F0FF) as ASCII
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* characters (U+0020 - U+00FF).
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*/
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if ((afm->Metrics->UV & 0xff00) == 0xf000 && UV < 0x100)
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UV |= 0xf000;
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key.UV = UV;
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needle = bsearch(&key, afm->Metrics, afm->NumofMetrics, sizeof(AFMMETRICS),
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MetricsByUV);
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if (needle == NULL)
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{
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WARN("No glyph for U+%.4lX in %s\n", UV, afm->FontName);
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needle = afm->Metrics;
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}
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return needle;
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}
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/***********************************************************************
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* PSDRV_GetTextExtentPoint
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*/
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BOOL PSDRV_GetTextExtentPoint(DC *dc, LPCWSTR str, INT count, LPSIZE size)
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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int i;
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float width = 0.0;
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TRACE("%s %i\n", debugstr_wn(str, count), count);
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for (i = 0; i < count && str[i] != '\0'; ++i)
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width += PSDRV_UVMetrics(str[i], physDev->font.afm)->WX;
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width *= physDev->font.scale;
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size->cx = GDI_ROUND((FLOAT)width * dc->xformVport2World.eM11);
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size->cy = GDI_ROUND((FLOAT)physDev->font.tm.tmHeight *
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dc->xformVport2World.eM22);
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TRACE("cx=%li cy=%li\n", size->cx, size->cy);
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return TRUE;
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}
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/***********************************************************************
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* PSDRV_GetCharWidth
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*/
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BOOL PSDRV_GetCharWidth(DC *dc, UINT firstChar, UINT lastChar, LPINT buffer)
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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UINT i;
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TRACE("U+%.4X U+%.4X\n", firstChar, lastChar);
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if (lastChar > 0xffff || firstChar > lastChar)
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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for (i = firstChar; i <= lastChar; ++i)
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{
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*buffer = GDI_ROUND(PSDRV_UVMetrics(i, physDev->font.afm)->WX
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* physDev->font.scale);
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TRACE("U+%.4X: %i\n", i, *buffer);
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++buffer;
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}
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return TRUE;
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}
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/***********************************************************************
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* PSDRV_SetFont
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*/
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BOOL PSDRV_SetFont( DC *dc )
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{
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PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
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PSDRV_WriteSetColor(dc, &physDev->font.color);
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if(physDev->font.set) return TRUE;
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PSDRV_WriteSetFont(dc);
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physDev->font.set = TRUE;
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return TRUE;
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}
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/***********************************************************************
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* PSDRV_GetFontMetric
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*/
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static UINT PSDRV_GetFontMetric(HDC hdc, const AFM *afm,
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NEWTEXTMETRICEXW *ntmx, ENUMLOGFONTEXW *elfx)
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{
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/* ntmx->ntmTm is NEWTEXTMETRICW; compatible w/ TEXTMETRICW per Win32 doc */
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TEXTMETRICW *tm = (TEXTMETRICW *)&(ntmx->ntmTm);
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LOGFONTW *lf = &(elfx->elfLogFont);
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PSFONT font;
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memset(ntmx, 0, sizeof(*ntmx));
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memset(elfx, 0, sizeof(*elfx));
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ScaleFont(afm, -(LONG)(afm->WinMetrics.usUnitsPerEm), &font, tm);
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lf->lfHeight = tm->tmHeight;
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lf->lfWidth = tm->tmAveCharWidth;
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lf->lfWeight = tm->tmWeight;
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lf->lfItalic = tm->tmItalic;
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lf->lfCharSet = tm->tmCharSet;
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lf->lfPitchAndFamily = (afm->IsFixedPitch) ? FIXED_PITCH : VARIABLE_PITCH;
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MultiByteToWideChar(CP_ACP, 0, afm->FamilyName, -1, lf->lfFaceName,
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LF_FACESIZE);
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return DEVICE_FONTTYPE;
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}
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/***********************************************************************
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* PSDRV_EnumDeviceFonts
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*/
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BOOL PSDRV_EnumDeviceFonts( HDC hdc, LPLOGFONTW plf,
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DEVICEFONTENUMPROC proc, LPARAM lp )
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{
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ENUMLOGFONTEXW lf;
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NEWTEXTMETRICEXW tm;
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BOOL b, bRet = 0;
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AFMLISTENTRY *afmle;
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FONTFAMILY *family;
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PSDRV_PDEVICE *physDev;
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char FaceName[LF_FACESIZE];
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DC *dc = DC_GetDCPtr( hdc );
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if (!dc) return FALSE;
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physDev = (PSDRV_PDEVICE *)dc->physDev;
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/* FIXME!! should reevaluate dc->physDev after every callback */
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GDI_ReleaseObj( hdc );
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if( plf->lfFaceName[0] ) {
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WideCharToMultiByte(CP_ACP, 0, plf->lfFaceName, -1,
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FaceName, sizeof(FaceName), NULL, NULL);
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TRACE("lfFaceName = '%s'\n", FaceName);
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for(family = physDev->pi->Fonts; family; family = family->next) {
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if(!strncmp(FaceName, family->FamilyName,
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strlen(family->FamilyName)))
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break;
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}
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if(family) {
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for(afmle = family->afmlist; afmle; afmle = afmle->next) {
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TRACE("Got '%s'\n", afmle->afm->FontName);
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if( (b = (*proc)( &lf, &tm,
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PSDRV_GetFontMetric( hdc, afmle->afm, &tm, &lf ),
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lp )) )
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bRet = b;
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else break;
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}
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}
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} else {
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TRACE("lfFaceName = NULL\n");
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for(family = physDev->pi->Fonts; family; family = family->next) {
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afmle = family->afmlist;
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TRACE("Got '%s'\n", afmle->afm->FontName);
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if( (b = (*proc)( &lf, &tm,
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PSDRV_GetFontMetric( hdc, afmle->afm, &tm, &lf ),
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lp )) )
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bRet = b;
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else break;
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}
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}
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return bRet;
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}
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