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https://github.com/reactos/reactos.git
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Consolidate filling of TEXTMETRICS to a single location.
svn path=/trunk/; revision=12369
This commit is contained in:
Gé van Geldorp
parent
8bd8d19886
commit
befed0390b
1 changed files with 149 additions and 139 deletions
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@ -22,7 +22,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: text.c,v 1.122 2004/12/18 21:35:35 royce Exp $ */
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/* $Id: text.c,v 1.123 2004/12/27 20:06:55 gvg Exp $ */
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#include <w32k.h>
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#include <ft2build.h>
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@ -694,6 +694,114 @@ NtGdiTranslateCharsetInfo(PDWORD Src,
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return (BOOL) Ret;
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}
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static void FASTCALL
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FillTM(TEXTMETRICW *TM, FT_Face Face, TT_OS2 *pOS2, TT_HoriHeader *pHori)
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{
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FT_Fixed XScale, YScale;
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int Ascent, Descent;
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XScale = Face->size->metrics.x_scale;
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YScale = Face->size->metrics.y_scale;
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if (0 == pOS2->usWinAscent + pOS2->usWinDescent)
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{
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Ascent = pHori->Ascender;
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Descent = -pHori->Descender;
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}
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else
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{
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Ascent = pOS2->usWinAscent;
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Descent = pOS2->usWinDescent;
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}
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TM->tmAscent = (FT_MulFix(Ascent, YScale) + 32) >> 6;
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TM->tmDescent = (FT_MulFix(Descent, YScale) + 32) >> 6;
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TM->tmInternalLeading = (FT_MulFix(Ascent + Descent
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- Face->units_per_EM, YScale) + 32) >> 6;
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TM->tmHeight = TM->tmAscent + TM->tmDescent;
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/* MSDN says:
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* el = MAX(0, LineGap - ((WinAscent + WinDescent) - (Ascender - Descender)))
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*/
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TM->tmExternalLeading = max(0, (FT_MulFix(pHori->Line_Gap
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- ((Ascent + Descent)
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- (pHori->Ascender - pHori->Descender)),
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YScale) + 32) >> 6);
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TM->tmAveCharWidth = (FT_MulFix(pOS2->xAvgCharWidth, XScale) + 32) >> 6;
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if (0 == TM->tmAveCharWidth)
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{
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TM->tmAveCharWidth = 1;
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}
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TM->tmMaxCharWidth = (FT_MulFix(Face->bbox.xMax - Face->bbox.xMin,
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XScale) + 32) >> 6;
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TM->tmWeight = pOS2->usWeightClass;
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TM->tmOverhang = 0;
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TM->tmDigitizedAspectX = 300;
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TM->tmDigitizedAspectY = 300;
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TM->tmFirstChar = pOS2->usFirstCharIndex;
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TM->tmLastChar = pOS2->usLastCharIndex;
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TM->tmDefaultChar = pOS2->usDefaultChar;
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TM->tmBreakChar = L'\0' != pOS2->usBreakChar ? pOS2->usBreakChar : ' ';
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TM->tmItalic = (Face->style_flags & FT_STYLE_FLAG_ITALIC) ? 255 : 0;
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TM->tmUnderlined = 0; /* entry in OS2 table */
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TM->tmStruckOut = 0; /* entry in OS2 table */
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/* Yes TPMF_FIXED_PITCH is correct; braindead api */
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if (! FT_IS_FIXED_WIDTH(Face))
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{
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TM->tmPitchAndFamily = TMPF_FIXED_PITCH;
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}
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else
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{
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TM->tmPitchAndFamily = 0;
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}
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switch (pOS2->panose[PAN_FAMILYTYPE_INDEX])
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{
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case PAN_FAMILY_SCRIPT:
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TM->tmPitchAndFamily |= FF_SCRIPT;
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break;
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case PAN_FAMILY_DECORATIVE:
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case PAN_FAMILY_PICTORIAL:
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TM->tmPitchAndFamily |= FF_DECORATIVE;
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break;
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case PAN_FAMILY_TEXT_DISPLAY:
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if (0 == TM->tmPitchAndFamily) /* fixed */
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{
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TM->tmPitchAndFamily = FF_MODERN;
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}
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else
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{
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switch (pOS2->panose[PAN_SERIFSTYLE_INDEX])
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{
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case PAN_SERIF_NORMAL_SANS:
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case PAN_SERIF_OBTUSE_SANS:
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case PAN_SERIF_PERP_SANS:
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TM->tmPitchAndFamily |= FF_SWISS;
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break;
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default:
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TM->tmPitchAndFamily |= FF_ROMAN;
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break;
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}
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}
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break;
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default:
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TM->tmPitchAndFamily |= FF_DONTCARE;
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}
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if (FT_IS_SCALABLE(Face))
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{
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TM->tmPitchAndFamily |= TMPF_VECTOR;
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}
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if (FT_IS_SFNT(Face))
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{
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TM->tmPitchAndFamily |= TMPF_TRUETYPE;
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}
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TM->tmCharSet = DEFAULT_CHARSET;
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}
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/*************************************************************
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* IntGetOutlineTextMetrics
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@ -711,8 +819,6 @@ IntGetOutlineTextMetrics(PFONTGDI FontGDI, UINT Size,
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ANSI_STRING FamilyNameA, StyleNameA;
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UNICODE_STRING FamilyNameW, StyleNameW, Regular;
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char *Cp;
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int Ascent, Descent;
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TEXTMETRICW *TM;
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Needed = sizeof(OUTLINETEXTMETRICW);
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@ -779,107 +885,7 @@ IntGetOutlineTextMetrics(PFONTGDI FontGDI, UINT Size,
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Otm->otmSize = Needed;
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if (0 == pOS2->usWinAscent + pOS2->usWinDescent)
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{
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Ascent = pHori->Ascender;
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Descent = -pHori->Descender;
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}
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else
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{
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Ascent = pOS2->usWinAscent;
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Descent = pOS2->usWinDescent;
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}
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TM = &Otm->otmTextMetrics;
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TM->tmAscent = (FT_MulFix(Ascent, YScale) + 32) >> 6;
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TM->tmDescent = (FT_MulFix(Descent, YScale) + 32) >> 6;
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TM->tmInternalLeading = (FT_MulFix(Ascent + Descent
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- FontGDI->face->units_per_EM, YScale) + 32) >> 6;
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TM->tmHeight = TM->tmAscent + TM->tmDescent;
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/* MSDN says:
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* el = MAX(0, LineGap - ((WinAscent + WinDescent) - (Ascender - Descender)))
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*/
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TM->tmExternalLeading = max(0, (FT_MulFix(pHori->Line_Gap
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- ((Ascent + Descent)
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- (pHori->Ascender - pHori->Descender)),
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YScale) + 32) >> 6);
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TM->tmAveCharWidth = (FT_MulFix(pOS2->xAvgCharWidth, XScale) + 32) >> 6;
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if (0 == TM->tmAveCharWidth)
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{
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TM->tmAveCharWidth = 1;
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}
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TM->tmMaxCharWidth = (FT_MulFix(FontGDI->face->bbox.xMax - FontGDI->face->bbox.xMin,
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XScale) + 32) >> 6;
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TM->tmWeight = pOS2->usWeightClass;
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TM->tmOverhang = 0;
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TM->tmDigitizedAspectX = 300;
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TM->tmDigitizedAspectY = 300;
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TM->tmFirstChar = pOS2->usFirstCharIndex;
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TM->tmLastChar = pOS2->usLastCharIndex;
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TM->tmDefaultChar = pOS2->usDefaultChar;
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TM->tmBreakChar = L'\0' != pOS2->usBreakChar ? pOS2->usBreakChar : ' ';
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TM->tmItalic = (FontGDI->face->style_flags & FT_STYLE_FLAG_ITALIC) ? 255 : 0;
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TM->tmUnderlined = 0; /* entry in OS2 table */
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TM->tmStruckOut = 0; /* entry in OS2 table */
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/* Yes TPMF_FIXED_PITCH is correct; braindead api */
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if (! FT_IS_FIXED_WIDTH(FontGDI->face))
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{
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TM->tmPitchAndFamily = TMPF_FIXED_PITCH;
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}
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else
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{
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TM->tmPitchAndFamily = 0;
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}
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switch (pOS2->panose[PAN_FAMILYTYPE_INDEX])
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{
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case PAN_FAMILY_SCRIPT:
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TM->tmPitchAndFamily |= FF_SCRIPT;
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break;
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case PAN_FAMILY_DECORATIVE:
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case PAN_FAMILY_PICTORIAL:
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TM->tmPitchAndFamily |= FF_DECORATIVE;
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break;
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case PAN_FAMILY_TEXT_DISPLAY:
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if (0 == TM->tmPitchAndFamily) /* fixed */
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{
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TM->tmPitchAndFamily = FF_MODERN;
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}
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else
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{
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switch (pOS2->panose[PAN_SERIFSTYLE_INDEX])
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{
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case PAN_SERIF_NORMAL_SANS:
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case PAN_SERIF_OBTUSE_SANS:
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case PAN_SERIF_PERP_SANS:
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TM->tmPitchAndFamily |= FF_SWISS;
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break;
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default:
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TM->tmPitchAndFamily |= FF_ROMAN;
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break;
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}
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}
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break;
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default:
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TM->tmPitchAndFamily |= FF_DONTCARE;
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}
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if (FT_IS_SCALABLE(FontGDI->face))
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{
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TM->tmPitchAndFamily |= TMPF_VECTOR;
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}
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if (FT_IS_SFNT(FontGDI->face))
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{
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TM->tmPitchAndFamily |= TMPF_TRUETYPE;
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}
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#ifndef TODO
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TM->tmCharSet = DEFAULT_CHARSET;
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#endif
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FillTM(&Otm->otmTextMetrics, FontGDI->face, pOS2, pHori);
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Otm->otmFiller = 0;
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memcpy(&Otm->otmPanoseNumber, pOS2->panose, PANOSE_COUNT);
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@ -2548,7 +2554,7 @@ NtGdiGetTextFace(HDC hDC, INT Count, LPWSTR FaceName)
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BOOL
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STDCALL
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NtGdiGetTextMetrics(HDC hDC,
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LPTEXTMETRICW tm)
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LPTEXTMETRICW tm)
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{
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PDC dc;
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PTEXTOBJ TextObj;
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@ -2557,6 +2563,7 @@ NtGdiGetTextMetrics(HDC hDC,
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TEXTMETRICW SafeTm;
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FT_Face Face;
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TT_OS2 *pOS2;
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TT_HoriHeader *pHori;
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ULONG Error;
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if (NULL == tm)
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@ -2573,7 +2580,7 @@ NtGdiGetTextMetrics(HDC hDC,
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TextObj = TEXTOBJ_LockText(dc->w.hFont);
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if (NULL != TextObj)
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{
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{
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FontGDI = ObjToGDI(TextObj->Font, FONT);
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Face = FontGDI->face;
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@ -2587,47 +2594,50 @@ NtGdiGetTextMetrics(HDC hDC,
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IntUnLockFreeType;
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if (0 != Error)
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{
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DPRINT1("Error in setting pixel sizes: %u\n", Error);
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Status = STATUS_UNSUCCESSFUL;
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DPRINT1("Error in setting pixel sizes: %u\n", Error);
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Status = STATUS_UNSUCCESSFUL;
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}
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else
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{
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memcpy(&SafeTm, &FontGDI->TextMetric, sizeof(TEXTMETRICW));
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IntLockFreeType;
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pOS2 = FT_Get_Sfnt_Table(Face, ft_sfnt_os2);
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IntUnLockFreeType;
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if (NULL == pOS2)
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{
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DPRINT1("Can't find OS/2 table - not TT font?\n");
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Status = STATUS_UNSUCCESSFUL;
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}
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else
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{
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SafeTm.tmAveCharWidth = (pOS2->xAvgCharWidth + 32) >> 6;
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}
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SafeTm.tmAscent = (Face->size->metrics.ascender + 32) >> 6; // units above baseline
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SafeTm.tmDescent = (32 - Face->size->metrics.descender) >> 6; // units below baseline
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SafeTm.tmHeight = SafeTm.tmAscent + SafeTm.tmDescent;
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SafeTm.tmMaxCharWidth = (Face->size->metrics.max_advance + 32) >> 6;
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if (FT_IS_SFNT(FontGDI->face))
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{
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SafeTm.tmPitchAndFamily |= TMPF_TRUETYPE;
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}
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Status = MmCopyToCaller(tm, &SafeTm, sizeof(TEXTMETRICW));
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memcpy(&SafeTm, &FontGDI->TextMetric, sizeof(TEXTMETRICW));
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Status = STATUS_SUCCESS;
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IntLockFreeType;
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pOS2 = FT_Get_Sfnt_Table(FontGDI->face, ft_sfnt_os2);
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if (NULL == pOS2)
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{
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DPRINT1("Can't find OS/2 table - not TT font?\n");
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Status = STATUS_INTERNAL_ERROR;
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}
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pHori = FT_Get_Sfnt_Table(FontGDI->face, ft_sfnt_hhea);
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if (NULL == pHori)
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{
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DPRINT1("Can't find HHEA table - not TT font?\n");
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Status = STATUS_INTERNAL_ERROR;
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}
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IntUnLockFreeType;
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if (NT_SUCCESS(Status))
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{
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FillTM(&SafeTm, FontGDI->face, pOS2, pHori);
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Status = MmCopyToCaller(tm, &SafeTm, sizeof(TEXTMETRICW));
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}
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}
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TEXTOBJ_UnlockText(dc->w.hFont);
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}
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TEXTOBJ_UnlockText(dc->w.hFont);
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}
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else
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{
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Status = STATUS_INVALID_HANDLE;
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}
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{
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Status = STATUS_INVALID_HANDLE;
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}
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DC_UnlockDc(hDC);
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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return FALSE;
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}
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{
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SetLastNtError(Status);
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return FALSE;
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}
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return TRUE;
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}
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