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Sweden-Number/graphics/psdrv/font.c

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/*
* PostScript driver font functions
*
* Copyright 1998 Huw D M Davies
*
*/
#include <string.h>
#include "winspool.h"
#include "psdrv.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(psdrv)
/***********************************************************************
* PSDRV_FONT_SelectObject
*/
HFONT16 PSDRV_FONT_SelectObject( DC * dc, HFONT16 hfont,
FONTOBJ *font )
{
HFONT16 prevfont = dc->w.hFont;
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
LOGFONT16 *lf = &(font->logfont);
BOOL bd = FALSE, it = FALSE;
AFMLISTENTRY *afmle;
AFM *afm;
FONTFAMILY *family;
char FaceName[LF_FACESIZE];
TRACE("FaceName = '%s' Height = %d Italic = %d Weight = %d\n",
lf->lfFaceName, lf->lfHeight, lf->lfItalic, lf->lfWeight);
dc->w.hFont = hfont;
if(lf->lfItalic)
it = TRUE;
if(lf->lfWeight > 550)
bd = TRUE;
strcpy(FaceName, lf->lfFaceName);
if(FaceName[0] == '\0') {
switch(lf->lfPitchAndFamily & 0xf0) {
case FF_DONTCARE:
break;
case FF_ROMAN:
case FF_SCRIPT:
strcpy(FaceName, "Times");
break;
case FF_SWISS:
strcpy(FaceName, "Helvetica");
break;
case FF_MODERN:
strcpy(FaceName, "Courier");
break;
case FF_DECORATIVE:
strcpy(FaceName, "Symbol");
break;
}
}
if(FaceName[0] == '\0') {
switch(lf->lfPitchAndFamily & 0x0f) {
case VARIABLE_PITCH:
strcpy(FaceName, "Times");
break;
default:
strcpy(FaceName, "Courier");
break;
}
}
TRACE("Trying to find facename '%s'\n", FaceName);
/* Look for a matching font family */
for(family = physDev->pi->Fonts; family; family = family->next) {
if(!strcmp(FaceName, family->FamilyName))
break;
}
if(!family) {
/* Fallback for Window's font families to common PostScript families */
if(!strcmp(FaceName, "Arial"))
strcpy(FaceName, "Helvetica");
else if(!strcmp(FaceName, "System"))
strcpy(FaceName, "Helvetica");
else if(!strcmp(FaceName, "Times New Roman"))
strcpy(FaceName, "Times");
for(family = physDev->pi->Fonts; family; family = family->next) {
if(!strcmp(FaceName, family->FamilyName))
break;
}
}
/* If all else fails, use the first font defined for the printer */
if(!family)
family = physDev->pi->Fonts;
TRACE("Got family '%s'\n", family->FamilyName);
for(afmle = family->afmlist; afmle; afmle = afmle->next) {
if( (bd == (afmle->afm->Weight == FW_BOLD)) &&
(it == (afmle->afm->ItalicAngle != 0.0)) )
break;
}
if(!afmle)
afmle = family->afmlist; /* not ideal */
afm = afmle->afm;
physDev->font.afm = afm;
physDev->font.tm.tmHeight = YLSTODS(dc, lf->lfHeight);
if(physDev->font.tm.tmHeight < 0) {
physDev->font.tm.tmHeight *= - (afm->FullAscender - afm->Descender) /
(afm->Ascender - afm->Descender);
TRACE("Fixed -ve height to %ld\n", physDev->font.tm.tmHeight);
}
physDev->font.size = physDev->font.tm.tmHeight * 1000.0 /
(afm->FullAscender - afm->Descender);
physDev->font.scale = physDev->font.size / 1000.0;
physDev->font.escapement = lf->lfEscapement;
physDev->font.tm.tmAscent = afm->FullAscender * physDev->font.scale;
physDev->font.tm.tmDescent = -afm->Descender * physDev->font.scale;
physDev->font.tm.tmInternalLeading = (afm->FullAscender - afm->Ascender)
* physDev->font.scale;
physDev->font.tm.tmExternalLeading = (1000.0 - afm->FullAscender)
* physDev->font.scale; /* ?? */
physDev->font.tm.tmAveCharWidth = afm->CharWidths[120] * /* x */
physDev->font.scale;
physDev->font.tm.tmMaxCharWidth = afm->CharWidths[77] * /* M */
physDev->font.scale;
physDev->font.tm.tmWeight = afm->Weight;
physDev->font.tm.tmItalic = afm->ItalicAngle != 0.0;
physDev->font.tm.tmUnderlined = lf->lfUnderline;
physDev->font.tm.tmStruckOut = lf->lfStrikeOut;
physDev->font.tm.tmFirstChar = 32;
physDev->font.tm.tmLastChar = 251;
physDev->font.tm.tmDefaultChar = 128;
physDev->font.tm.tmBreakChar = 32;
physDev->font.tm.tmPitchAndFamily = afm->IsFixedPitch ? 0 :
TMPF_FIXED_PITCH;
physDev->font.tm.tmPitchAndFamily |= TMPF_DEVICE;
physDev->font.tm.tmCharSet = ANSI_CHARSET;
physDev->font.tm.tmOverhang = 0;
physDev->font.tm.tmDigitizedAspectX = dc->w.devCaps->logPixelsY;
physDev->font.tm.tmDigitizedAspectY = dc->w.devCaps->logPixelsX;
physDev->font.set = FALSE;
TRACE("Selected PS font '%s' size %d weight %ld.\n",
physDev->font.afm->FontName, physDev->font.size,
physDev->font.tm.tmWeight );
TRACE("H = %ld As = %ld Des = %ld IL = %ld EL = %ld\n",
physDev->font.tm.tmHeight, physDev->font.tm.tmAscent,
physDev->font.tm.tmDescent, physDev->font.tm.tmInternalLeading,
physDev->font.tm.tmExternalLeading);
return prevfont;
}
/***********************************************************************
* PSDRV_GetTextMetrics
*/
BOOL PSDRV_GetTextMetrics(DC *dc, TEXTMETRICA *metrics)
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
memcpy(metrics, &(physDev->font.tm), sizeof(physDev->font.tm));
return TRUE;
}
/***********************************************************************
* PSDRV_UnicodeToANSI
*/
char PSDRV_UnicodeToANSI(int u)
{
if((u & 0xff) == u)
return u;
switch(u) {
case 0x2013: /* endash */
return 0x96;
case 0x2014: /* emdash */
return 0x97;
case 0x2018: /* quoteleft */
return 0x91;
case 0x2019: /* quoteright */
return 0x92;
case 0x201c: /* quotedblleft */
return 0x93;
case 0x201d: /* quotedblright */
return 0x94;
case 0x2022: /* bullet */
return 0x95;
default:
WARN("Umapped unicode char U%04x\n", u);
return 0xff;
}
}
/***********************************************************************
* PSDRV_GetTextExtentPoint
*/
BOOL PSDRV_GetTextExtentPoint( DC *dc, LPCWSTR str, INT count,
LPSIZE size )
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
INT i;
float width;
size->cy = YDSTOLS(dc, physDev->font.tm.tmHeight);
width = 0.0;
for(i = 0; i < count && str[i]; i++) {
char c = PSDRV_UnicodeToANSI(str[i]);
width += physDev->font.afm->CharWidths[(int)(unsigned char)c];
/* TRACE(psdrv, "Width after %dth char '%c' = %f\n", i, str[i], width);*/
}
width *= physDev->font.scale;
TRACE("Width after scale (%f) is %f\n", physDev->font.scale, width);
size->cx = XDSTOLS(dc, width);
return TRUE;
}
/***********************************************************************
* PSDRV_GetCharWidth
*/
BOOL PSDRV_GetCharWidth( DC *dc, UINT firstChar, UINT lastChar,
LPINT buffer )
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
UINT i;
TRACE("first = %d last = %d\n", firstChar, lastChar);
if(lastChar > 0xff) return FALSE;
for( i = firstChar; i <= lastChar; i++ )
*buffer++ = physDev->font.afm->CharWidths[i] * physDev->font.scale;
return TRUE;
}
/***********************************************************************
* PSDRV_SetFont
*/
BOOL PSDRV_SetFont( DC *dc )
{
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
BOOL ReEncode = FALSE;
PSDRV_WriteSetColor(dc, &physDev->font.color);
if(physDev->font.set) return TRUE;
if(physDev->font.afm->EncodingScheme &&
!strcmp(physDev->font.afm->EncodingScheme, "AdobeStandardEncoding"))
ReEncode = TRUE;
if(ReEncode)
PSDRV_WriteReencodeFont(dc);
PSDRV_WriteSetFont(dc, ReEncode);
physDev->font.set = TRUE;
return TRUE;
}
/***********************************************************************
* PSDRV_GetFontMetric
*/
static UINT PSDRV_GetFontMetric(DC *dc, AFM *pafm, NEWTEXTMETRIC16 *pTM,
ENUMLOGFONTEX16 *pLF, INT16 size)
{
float scale = size / (pafm->FullAscender - pafm->Descender);
memset( pLF, 0, sizeof(*pLF) );
memset( pTM, 0, sizeof(*pTM) );
#define plf ((LPLOGFONT16)pLF)
plf->lfHeight = pTM->tmHeight = size;
plf->lfWidth = pTM->tmAveCharWidth = pafm->CharWidths[120] * scale;
plf->lfWeight = pTM->tmWeight = pafm->Weight;
plf->lfItalic = pTM->tmItalic = pafm->ItalicAngle != 0.0;
plf->lfUnderline = pTM->tmUnderlined = 0;
plf->lfStrikeOut = pTM->tmStruckOut = 0;
plf->lfCharSet = pTM->tmCharSet = ANSI_CHARSET;
/* convert pitch values */
pTM->tmPitchAndFamily = pafm->IsFixedPitch ? 0 : TMPF_FIXED_PITCH;
pTM->tmPitchAndFamily |= TMPF_DEVICE;
plf->lfPitchAndFamily = 0;
lstrcpynA( plf->lfFaceName, pafm->FamilyName, LF_FACESIZE );
#undef plf
pTM->tmAscent = pafm->FullAscender * scale;
pTM->tmDescent = -pafm->Descender * scale;
pTM->tmInternalLeading = (pafm->FullAscender - pafm->Ascender) * scale;
pTM->tmMaxCharWidth = pafm->CharWidths[77] * scale;
pTM->tmDigitizedAspectX = dc->w.devCaps->logPixelsY;
pTM->tmDigitizedAspectY = dc->w.devCaps->logPixelsX;
*(INT*)&pTM->tmFirstChar = 32;
/* return font type */
return DEVICE_FONTTYPE;
}
/***********************************************************************
* PSDRV_EnumDeviceFonts
*/
BOOL PSDRV_EnumDeviceFonts( DC* dc, LPLOGFONT16 plf,
DEVICEFONTENUMPROC proc, LPARAM lp )
{
ENUMLOGFONTEX16 lf;
NEWTEXTMETRIC16 tm;
BOOL b, bRet = 0;
AFMLISTENTRY *afmle;
FONTFAMILY *family;
PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
if( plf->lfFaceName[0] ) {
TRACE("lfFaceName = '%s'\n", plf->lfFaceName);
for(family = physDev->pi->Fonts; family; family = family->next) {
if(!strncmp(plf->lfFaceName, family->FamilyName,
strlen(family->FamilyName)))
break;
}
if(family) {
for(afmle = family->afmlist; afmle; afmle = afmle->next) {
TRACE("Got '%s'\n", afmle->afm->FontName);
if( (b = (*proc)( &lf, &tm,
PSDRV_GetFontMetric( dc, afmle->afm, &tm, &lf, 200 ),
lp )) )
bRet = b;
else break;
}
}
} else {
TRACE("lfFaceName = NULL\n");
for(family = physDev->pi->Fonts; family; family = family->next) {
afmle = family->afmlist;
TRACE("Got '%s'\n", afmle->afm->FontName);
if( (b = (*proc)( &lf, &tm,
PSDRV_GetFontMetric( dc, afmle->afm, &tm, &lf, 200 ),
lp )) )
bRet = b;
else break;
}
}
return bRet;
}
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