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Sweden-Number/dlls/wineps/font.c

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