diff options
Diffstat (limited to 'src/gui/platforms/win/qfontengine_win.cpp')
| -rw-r--r-- | src/gui/platforms/win/qfontengine_win.cpp | 1339 |
1 files changed, 0 insertions, 1339 deletions
diff --git a/src/gui/platforms/win/qfontengine_win.cpp b/src/gui/platforms/win/qfontengine_win.cpp deleted file mode 100644 index 54d7ec2980..0000000000 --- a/src/gui/platforms/win/qfontengine_win.cpp +++ /dev/null @@ -1,1339 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#if _WIN32_WINNT < 0x0500 -#undef _WIN32_WINNT -#define _WIN32_WINNT 0x0500 -#endif - -#include "qfontengine_p.h" -#include "qtextengine_p.h" -#include <qglobal.h> -#include "qt_windows.h" -#include <private/qapplication_p.h> - -#include <private/qsystemlibrary_p.h> -#include <qpaintdevice.h> -#include <qpainter.h> -#include <limits.h> - -#include <qendian.h> -#include <qmath.h> -#include <qthreadstorage.h> - -#include <private/qunicodetables_p.h> -#include <qbitmap.h> - -#include <private/qpainter_p.h> -#include "qpaintengine.h" -#include "qvarlengtharray.h" -#include <private/qpaintengine_raster_p.h> -#include <private/qnativeimage_p.h> - -#if defined(Q_WS_WINCE) -#include "qguifunctions_wince.h" -#endif - -//### mingw needed define -#ifndef TT_PRIM_CSPLINE -#define TT_PRIM_CSPLINE 3 -#endif - -#ifdef MAKE_TAG -#undef MAKE_TAG -#endif -// GetFontData expects the tags in little endian ;( -#define MAKE_TAG(ch1, ch2, ch3, ch4) (\ - (((quint32)(ch4)) << 24) | \ - (((quint32)(ch3)) << 16) | \ - (((quint32)(ch2)) << 8) | \ - ((quint32)(ch1)) \ - ) - -// common DC for all fonts - -QT_BEGIN_NAMESPACE - -class QtHDC -{ - HDC _hdc; -public: - QtHDC() - { - HDC displayDC = GetDC(0); - _hdc = CreateCompatibleDC(displayDC); - ReleaseDC(0, displayDC); - } - ~QtHDC() - { - if (_hdc) - DeleteDC(_hdc); - } - HDC hdc() const - { - return _hdc; - } -}; - -#ifndef QT_NO_THREAD -Q_GLOBAL_STATIC(QThreadStorage<QtHDC *>, local_shared_dc) -HDC shared_dc() -{ - QtHDC *&hdc = local_shared_dc()->localData(); - if (!hdc) - hdc = new QtHDC; - return hdc->hdc(); -} -#else -HDC shared_dc() -{ - return 0; -} -#endif - -#ifndef Q_WS_WINCE -typedef BOOL (WINAPI *PtrGetCharWidthI)(HDC, UINT, UINT, LPWORD, LPINT); -static PtrGetCharWidthI ptrGetCharWidthI = 0; -static bool resolvedGetCharWidthI = false; - -static void resolveGetCharWidthI() -{ - if (resolvedGetCharWidthI) - return; - resolvedGetCharWidthI = true; - ptrGetCharWidthI = (PtrGetCharWidthI)QSystemLibrary::resolve(QLatin1String("gdi32"), "GetCharWidthI"); -} -#endif // !defined(Q_WS_WINCE) - -// defined in qtextengine_win.cpp -typedef void *SCRIPT_CACHE; -typedef HRESULT (WINAPI *fScriptFreeCache)(SCRIPT_CACHE *); -extern fScriptFreeCache ScriptFreeCache; - -static inline quint32 getUInt(unsigned char *p) -{ - quint32 val; - val = *p++ << 24; - val |= *p++ << 16; - val |= *p++ << 8; - val |= *p; - - return val; -} - -static inline quint16 getUShort(unsigned char *p) -{ - quint16 val; - val = *p++ << 8; - val |= *p; - - return val; -} - -// general font engine - -QFixed QFontEngineWin::lineThickness() const -{ - if(lineWidth > 0) - return lineWidth; - - return QFontEngine::lineThickness(); -} - -static OUTLINETEXTMETRIC *getOutlineTextMetric(HDC hdc) -{ - int size; - size = GetOutlineTextMetrics(hdc, 0, 0); - OUTLINETEXTMETRIC *otm = (OUTLINETEXTMETRIC *)malloc(size); - GetOutlineTextMetrics(hdc, size, otm); - return otm; -} - -void QFontEngineWin::getCMap() -{ - ttf = (bool)(tm.tmPitchAndFamily & TMPF_TRUETYPE); - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - bool symb = false; - if (ttf) { - cmapTable = getSfntTable(qbswap<quint32>(MAKE_TAG('c', 'm', 'a', 'p'))); - int size = 0; - cmap = QFontEngine::getCMap(reinterpret_cast<const uchar *>(cmapTable.constData()), - cmapTable.size(), &symb, &size); - } - if (!cmap) { - ttf = false; - symb = false; - } - symbol = symb; - designToDevice = 1; - _faceId.index = 0; - if(cmap) { - OUTLINETEXTMETRIC *otm = getOutlineTextMetric(hdc); - designToDevice = QFixed((int)otm->otmEMSquare)/int(otm->otmTextMetrics.tmHeight); - unitsPerEm = otm->otmEMSquare; - x_height = (int)otm->otmsXHeight; - loadKerningPairs(designToDevice); - _faceId.filename = QString::fromWCharArray((wchar_t *)((char *)otm + (quintptr)otm->otmpFullName)).toLatin1(); - lineWidth = otm->otmsUnderscoreSize; - fsType = otm->otmfsType; - free(otm); - } else { - unitsPerEm = tm.tmHeight; - } -} - - -inline unsigned int getChar(const QChar *str, int &i, const int len) -{ - unsigned int uc = str[i].unicode(); - if (uc >= 0xd800 && uc < 0xdc00 && i < len-1) { - uint low = str[i+1].unicode(); - if (low >= 0xdc00 && low < 0xe000) { - uc = (uc - 0xd800)*0x400 + (low - 0xdc00) + 0x10000; - ++i; - } - } - return uc; -} - -int QFontEngineWin::getGlyphIndexes(const QChar *str, int numChars, QGlyphLayout *glyphs, bool mirrored) const -{ - int i = 0; - int glyph_pos = 0; - if (mirrored) { -#if defined(Q_WS_WINCE) - { -#else - if (symbol) { - for (; i < numChars; ++i, ++glyph_pos) { - unsigned int uc = getChar(str, i, numChars); - glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc); - if (!glyphs->glyphs[glyph_pos] && uc < 0x100) - glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc + 0xf000); - } - } else if (ttf) { - for (; i < numChars; ++i, ++glyph_pos) { - unsigned int uc = getChar(str, i, numChars); - glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, QChar::mirroredChar(uc)); - } - } else { -#endif - wchar_t first = tm.tmFirstChar; - wchar_t last = tm.tmLastChar; - - for (; i < numChars; ++i, ++glyph_pos) { - uint ucs = QChar::mirroredChar(getChar(str, i, numChars)); - if ( -#ifdef Q_WS_WINCE - tm.tmFirstChar > 60000 || // see line 375 -#endif - ucs >= first && ucs <= last) - glyphs->glyphs[glyph_pos] = ucs; - else - glyphs->glyphs[glyph_pos] = 0; - } - } - } else { -#if defined(Q_WS_WINCE) - { -#else - if (symbol) { - for (; i < numChars; ++i, ++glyph_pos) { - unsigned int uc = getChar(str, i, numChars); - glyphs->glyphs[i] = getTrueTypeGlyphIndex(cmap, uc); - if(!glyphs->glyphs[glyph_pos] && uc < 0x100) - glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc + 0xf000); - } - } else if (ttf) { - for (; i < numChars; ++i, ++glyph_pos) { - unsigned int uc = getChar(str, i, numChars); - glyphs->glyphs[glyph_pos] = getTrueTypeGlyphIndex(cmap, uc); - } - } else { -#endif - wchar_t first = tm.tmFirstChar; - wchar_t last = tm.tmLastChar; - - for (; i < numChars; ++i, ++glyph_pos) { - uint uc = getChar(str, i, numChars); - if ( -#ifdef Q_WS_WINCE - tm.tmFirstChar > 60000 || // see comment in QFontEngineWin -#endif - uc >= first && uc <= last) - glyphs->glyphs[glyph_pos] = uc; - else - glyphs->glyphs[glyph_pos] = 0; - } - } - } - glyphs->numGlyphs = glyph_pos; - return glyph_pos; -} - - -QFontEngineWin::QFontEngineWin(const QString &name, HFONT _hfont, bool stockFont, LOGFONT lf) -{ - //qDebug("regular windows font engine created: font='%s', size=%d", name, lf.lfHeight); - - _name = name; - - cmap = 0; - hfont = _hfont; - logfont = lf; - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - this->stockFont = stockFont; - fontDef.pixelSize = -lf.lfHeight; - - lbearing = SHRT_MIN; - rbearing = SHRT_MIN; - synthesized_flags = -1; - lineWidth = -1; - x_height = -1; - - BOOL res = GetTextMetrics(hdc, &tm); - fontDef.fixedPitch = !(tm.tmPitchAndFamily & TMPF_FIXED_PITCH); - if (!res) { - qErrnoWarning("QFontEngineWin: GetTextMetrics failed"); - ZeroMemory(&tm, sizeof(TEXTMETRIC)); - } - - cache_cost = tm.tmHeight * tm.tmAveCharWidth * 2000; - getCMap(); - - widthCache = 0; - widthCacheSize = 0; - designAdvances = 0; - designAdvancesSize = 0; - -#ifndef Q_WS_WINCE - if (!resolvedGetCharWidthI) - resolveGetCharWidthI(); -#endif -} - -QFontEngineWin::~QFontEngineWin() -{ - if (designAdvances) - free(designAdvances); - - if (widthCache) - free(widthCache); - - // make sure we aren't by accident still selected - SelectObject(shared_dc(), (HFONT)GetStockObject(SYSTEM_FONT)); - - if (!stockFont) { - if (!DeleteObject(hfont)) - qErrnoWarning("QFontEngineWin: failed to delete non-stock font..."); - } -} - -HGDIOBJ QFontEngineWin::selectDesignFont() const -{ - LOGFONT f = logfont; - f.lfHeight = unitsPerEm; - HFONT designFont = CreateFontIndirect(&f); - return SelectObject(shared_dc(), designFont); -} - -bool QFontEngineWin::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - if (*nglyphs < len) { - *nglyphs = len; - return false; - } - - *nglyphs = getGlyphIndexes(str, len, glyphs, flags & QTextEngine::RightToLeft); - - if (flags & QTextEngine::GlyphIndicesOnly) - return true; - - recalcAdvances(glyphs, flags); - return true; -} - -inline void calculateTTFGlyphWidth(HDC hdc, UINT glyph, int &width) -{ -#if defined(Q_WS_WINCE) - GetCharWidth32(hdc, glyph, glyph, &width); -#else - if (ptrGetCharWidthI) - ptrGetCharWidthI(hdc, glyph, 1, 0, &width); -#endif -} - -void QFontEngineWin::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const -{ - HGDIOBJ oldFont = 0; - HDC hdc = shared_dc(); - if (ttf && (flags & QTextEngine::DesignMetrics)) { - for(int i = 0; i < glyphs->numGlyphs; i++) { - unsigned int glyph = glyphs->glyphs[i]; - if(int(glyph) >= designAdvancesSize) { - int newSize = (glyph + 256) >> 8 << 8; - designAdvances = q_check_ptr((QFixed *)realloc(designAdvances, - newSize*sizeof(QFixed))); - for(int i = designAdvancesSize; i < newSize; ++i) - designAdvances[i] = -1000000; - designAdvancesSize = newSize; - } - if (designAdvances[glyph] < -999999) { - if (!oldFont) - oldFont = selectDesignFont(); - - int width = 0; - calculateTTFGlyphWidth(hdc, glyph, width); - designAdvances[glyph] = QFixed(width) / designToDevice; - } - glyphs->advances_x[i] = designAdvances[glyph]; - glyphs->advances_y[i] = 0; - } - if(oldFont) - DeleteObject(SelectObject(hdc, oldFont)); - } else { - for(int i = 0; i < glyphs->numGlyphs; i++) { - unsigned int glyph = glyphs->glyphs[i]; - - glyphs->advances_y[i] = 0; - - if (glyph >= widthCacheSize) { - int newSize = (glyph + 256) >> 8 << 8; - widthCache = q_check_ptr((unsigned char *)realloc(widthCache, - newSize*sizeof(QFixed))); - memset(widthCache + widthCacheSize, 0, newSize - widthCacheSize); - widthCacheSize = newSize; - } - glyphs->advances_x[i] = widthCache[glyph]; - // font-width cache failed - if (glyphs->advances_x[i] == 0) { - int width = 0; - if (!oldFont) - oldFont = SelectObject(hdc, hfont); - - if (!ttf) { - QChar ch[2] = { ushort(glyph), 0 }; - int chrLen = 1; - if (glyph > 0xffff) { - ch[0] = QChar::highSurrogate(glyph); - ch[1] = QChar::lowSurrogate(glyph); - ++chrLen; - } - SIZE size = {0, 0}; - GetTextExtentPoint32(hdc, (wchar_t *)ch, chrLen, &size); - width = size.cx; - } else { - calculateTTFGlyphWidth(hdc, glyph, width); - } - glyphs->advances_x[i] = width; - // if glyph's within cache range, store it for later - if (width > 0 && width < 0x100) - widthCache[glyph] = width; - } - } - - if (oldFont) - SelectObject(hdc, oldFont); - } -} - -glyph_metrics_t QFontEngineWin::boundingBox(const QGlyphLayout &glyphs) -{ - if (glyphs.numGlyphs == 0) - return glyph_metrics_t(); - - QFixed w = 0; - for (int i = 0; i < glyphs.numGlyphs; ++i) - w += glyphs.effectiveAdvance(i); - - return glyph_metrics_t(0, -tm.tmAscent, w - lastRightBearing(glyphs), tm.tmHeight, w, 0); -} - -#ifndef Q_WS_WINCE -bool QFontEngineWin::getOutlineMetrics(glyph_t glyph, const QTransform &t, glyph_metrics_t *metrics) const -{ - Q_ASSERT(metrics != 0); - - HDC hdc = shared_dc(); - - GLYPHMETRICS gm; - DWORD res = 0; - MAT2 mat; - mat.eM11.value = mat.eM22.value = 1; - mat.eM11.fract = mat.eM22.fract = 0; - mat.eM21.value = mat.eM12.value = 0; - mat.eM21.fract = mat.eM12.fract = 0; - - if (t.type() > QTransform::TxTranslate) { - // We need to set the transform using the HDC's world - // matrix rather than using the MAT2 above, because the - // results provided when transforming via MAT2 does not - // match the glyphs that are drawn using a WorldTransform - XFORM xform; - xform.eM11 = t.m11(); - xform.eM12 = t.m12(); - xform.eM21 = t.m21(); - xform.eM22 = t.m22(); - xform.eDx = 0; - xform.eDy = 0; - SetGraphicsMode(hdc, GM_ADVANCED); - SetWorldTransform(hdc, &xform); - } - - uint format = GGO_METRICS; - if (ttf) - format |= GGO_GLYPH_INDEX; - res = GetGlyphOutline(hdc, glyph, format, &gm, 0, 0, &mat); - - if (t.type() > QTransform::TxTranslate) { - XFORM xform; - xform.eM11 = xform.eM22 = 1; - xform.eM12 = xform.eM21 = xform.eDx = xform.eDy = 0; - SetWorldTransform(hdc, &xform); - SetGraphicsMode(hdc, GM_COMPATIBLE); - } - - if (res != GDI_ERROR) { - *metrics = glyph_metrics_t(gm.gmptGlyphOrigin.x, -gm.gmptGlyphOrigin.y, - (int)gm.gmBlackBoxX, (int)gm.gmBlackBoxY, gm.gmCellIncX, gm.gmCellIncY); - return true; - } else { - return false; - } -} -#endif - -glyph_metrics_t QFontEngineWin::boundingBox(glyph_t glyph, const QTransform &t) -{ -#ifndef Q_WS_WINCE - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - - glyph_metrics_t glyphMetrics; - bool success = getOutlineMetrics(glyph, t, &glyphMetrics); - - if (!ttf && !success) { - // Bitmap fonts - wchar_t ch = glyph; - ABCFLOAT abc; - GetCharABCWidthsFloat(hdc, ch, ch, &abc); - int width = qRound(abc.abcfB); - - return glyph_metrics_t(QFixed::fromReal(abc.abcfA), -tm.tmAscent, width, tm.tmHeight, width, 0).transformed(t); - } - - return glyphMetrics; -#else - HDC hdc = shared_dc(); - HGDIOBJ oldFont = SelectObject(hdc, hfont); - - ABC abc; - int width; - int advance; -#ifdef GWES_MGTT // true type fonts - if (GetCharABCWidths(hdc, glyph, glyph, &abc)) { - width = qAbs(abc.abcA) + abc.abcB + qAbs(abc.abcC); - advance = abc.abcA + abc.abcB + abc.abcC; - } - else -#endif -#if defined(GWES_MGRAST) || defined(GWES_MGRAST2) // raster fonts - if (GetCharWidth32(hdc, glyph, glyph, &width)) { - advance = width; - } - else -#endif - { // fallback - width = tm.tmMaxCharWidth; - advance = width; - } - - SelectObject(hdc, oldFont); - return glyph_metrics_t(0, -tm.tmAscent, width, tm.tmHeight, advance, 0).transformed(t); -#endif -} - -QFixed QFontEngineWin::ascent() const -{ - return tm.tmAscent; -} - -QFixed QFontEngineWin::descent() const -{ - // ### we substract 1 to even out the historical +1 in QFontMetrics's - // ### height=asc+desc+1 equation. Fix in Qt5. - return tm.tmDescent - 1; -} - -QFixed QFontEngineWin::leading() const -{ - return tm.tmExternalLeading; -} - - -QFixed QFontEngineWin::xHeight() const -{ - if(x_height >= 0) - return x_height; - return QFontEngine::xHeight(); -} - -QFixed QFontEngineWin::averageCharWidth() const -{ - return tm.tmAveCharWidth; -} - -qreal QFontEngineWin::maxCharWidth() const -{ - return tm.tmMaxCharWidth; -} - -enum { max_font_count = 256 }; -static const ushort char_table[] = { - 40, - 67, - 70, - 75, - 86, - 88, - 89, - 91, - 102, - 114, - 124, - 127, - 205, - 645, - 884, - 922, - 1070, - 12386, - 0 -}; - -static const int char_table_entries = sizeof(char_table)/sizeof(ushort); - -#ifndef Q_CC_MINGW -void QFontEngineWin::getGlyphBearings(glyph_t glyph, qreal *leftBearing, qreal *rightBearing) -{ - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - -#ifndef Q_WS_WINCE - if (ttf) -#endif - - { - ABC abcWidths; - GetCharABCWidthsI(hdc, glyph, 1, 0, &abcWidths); - if (leftBearing) - *leftBearing = abcWidths.abcA; - if (rightBearing) - *rightBearing = abcWidths.abcC; - } - -#ifndef Q_WS_WINCE - else { - QFontEngine::getGlyphBearings(glyph, leftBearing, rightBearing); - } -#endif -} -#endif // Q_CC_MINGW - -qreal QFontEngineWin::minLeftBearing() const -{ - if (lbearing == SHRT_MIN) - minRightBearing(); // calculates both - - return lbearing; -} - -qreal QFontEngineWin::minRightBearing() const -{ -#ifdef Q_WS_WINCE - if (rbearing == SHRT_MIN) { - int ml = 0; - int mr = 0; - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - if (ttf) { - ABC *abc = 0; - int n = tm.tmLastChar - tm.tmFirstChar; - if (n <= max_font_count) { - abc = new ABC[n+1]; - GetCharABCWidths(hdc, tm.tmFirstChar, tm.tmLastChar, abc); - } else { - abc = new ABC[char_table_entries+1]; - for(int i = 0; i < char_table_entries; i++) - GetCharABCWidths(hdc, char_table[i], char_table[i], abc+i); - n = char_table_entries; - } - ml = abc[0].abcA; - mr = abc[0].abcC; - for (int i = 1; i < n; i++) { - if (abc[i].abcA + abc[i].abcB + abc[i].abcC != 0) { - ml = qMin(ml,abc[i].abcA); - mr = qMin(mr,abc[i].abcC); - } - } - delete [] abc; - } - lbearing = ml; - rbearing = mr; - } - - return rbearing; -#else - if (rbearing == SHRT_MIN) { - int ml = 0; - int mr = 0; - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - if (ttf) { - ABC *abc = 0; - int n = tm.tmLastChar - tm.tmFirstChar; - if (n <= max_font_count) { - abc = new ABC[n+1]; - GetCharABCWidths(hdc, tm.tmFirstChar, tm.tmLastChar, abc); - } else { - abc = new ABC[char_table_entries+1]; - for(int i = 0; i < char_table_entries; i++) - GetCharABCWidths(hdc, char_table[i], char_table[i], abc + i); - n = char_table_entries; - } - ml = abc[0].abcA; - mr = abc[0].abcC; - for (int i = 1; i < n; i++) { - if (abc[i].abcA + abc[i].abcB + abc[i].abcC != 0) { - ml = qMin(ml,abc[i].abcA); - mr = qMin(mr,abc[i].abcC); - } - } - delete [] abc; - } else { - ABCFLOAT *abc = 0; - int n = tm.tmLastChar - tm.tmFirstChar+1; - if (n <= max_font_count) { - abc = new ABCFLOAT[n]; - GetCharABCWidthsFloat(hdc, tm.tmFirstChar, tm.tmLastChar, abc); - } else { - abc = new ABCFLOAT[char_table_entries]; - for(int i = 0; i < char_table_entries; i++) - GetCharABCWidthsFloat(hdc, char_table[i], char_table[i], abc+i); - n = char_table_entries; - } - float fml = abc[0].abcfA; - float fmr = abc[0].abcfC; - for (int i=1; i<n; i++) { - if (abc[i].abcfA + abc[i].abcfB + abc[i].abcfC != 0) { - fml = qMin(fml,abc[i].abcfA); - fmr = qMin(fmr,abc[i].abcfC); - } - } - ml = int(fml - 0.9999); - mr = int(fmr - 0.9999); - delete [] abc; - } - lbearing = ml; - rbearing = mr; - } - - return rbearing; -#endif -} - - -const char *QFontEngineWin::name() const -{ - return 0; -} - -bool QFontEngineWin::canRender(const QChar *string, int len) -{ - if (symbol) { - for (int i = 0; i < len; ++i) { - unsigned int uc = getChar(string, i, len); - if (getTrueTypeGlyphIndex(cmap, uc) == 0) { - if (uc < 0x100) { - if (getTrueTypeGlyphIndex(cmap, uc + 0xf000) == 0) - return false; - } else { - return false; - } - } - } - } else if (ttf) { - for (int i = 0; i < len; ++i) { - unsigned int uc = getChar(string, i, len); - if (getTrueTypeGlyphIndex(cmap, uc) == 0) - return false; - } - } else { - while(len--) { - if (tm.tmFirstChar > string->unicode() || tm.tmLastChar < string->unicode()) - return false; - } - } - return true; -} - -QFontEngine::Type QFontEngineWin::type() const -{ - return QFontEngine::Win; -} - -static inline double qt_fixed_to_double(const FIXED &p) { - return ((p.value << 16) + p.fract) / 65536.0; -} - -static inline QPointF qt_to_qpointf(const POINTFX &pt, qreal scale) { - return QPointF(qt_fixed_to_double(pt.x) * scale, -qt_fixed_to_double(pt.y) * scale); -} - -#ifndef GGO_UNHINTED -#define GGO_UNHINTED 0x0100 -#endif - -static bool addGlyphToPath(glyph_t glyph, const QFixedPoint &position, HDC hdc, - QPainterPath *path, bool ttf, glyph_metrics_t *metric = 0, qreal scale = 1) -{ -#if defined(Q_WS_WINCE) - Q_UNUSED(glyph); - Q_UNUSED(hdc); -#endif - MAT2 mat; - mat.eM11.value = mat.eM22.value = 1; - mat.eM11.fract = mat.eM22.fract = 0; - mat.eM21.value = mat.eM12.value = 0; - mat.eM21.fract = mat.eM12.fract = 0; - uint glyphFormat = GGO_NATIVE; - - if (ttf) - glyphFormat |= GGO_GLYPH_INDEX; - - GLYPHMETRICS gMetric; - memset(&gMetric, 0, sizeof(GLYPHMETRICS)); - int bufferSize = GDI_ERROR; -#if !defined(Q_WS_WINCE) - bufferSize = GetGlyphOutline(hdc, glyph, glyphFormat, &gMetric, 0, 0, &mat); -#endif - if ((DWORD)bufferSize == GDI_ERROR) { - return false; - } - - void *dataBuffer = new char[bufferSize]; - DWORD ret = GDI_ERROR; -#if !defined(Q_WS_WINCE) - ret = GetGlyphOutline(hdc, glyph, glyphFormat, &gMetric, bufferSize, dataBuffer, &mat); -#endif - if (ret == GDI_ERROR) { - delete [](char *)dataBuffer; - return false; - } - - if(metric) { - // #### obey scale - *metric = glyph_metrics_t(gMetric.gmptGlyphOrigin.x, -gMetric.gmptGlyphOrigin.y, - (int)gMetric.gmBlackBoxX, (int)gMetric.gmBlackBoxY, - gMetric.gmCellIncX, gMetric.gmCellIncY); - } - - int offset = 0; - int headerOffset = 0; - TTPOLYGONHEADER *ttph = 0; - - QPointF oset = position.toPointF(); - while (headerOffset < bufferSize) { - ttph = (TTPOLYGONHEADER*)((char *)dataBuffer + headerOffset); - - QPointF lastPoint(qt_to_qpointf(ttph->pfxStart, scale)); - path->moveTo(lastPoint + oset); - offset += sizeof(TTPOLYGONHEADER); - TTPOLYCURVE *curve; - while (offset<int(headerOffset + ttph->cb)) { - curve = (TTPOLYCURVE*)((char*)(dataBuffer) + offset); - switch (curve->wType) { - case TT_PRIM_LINE: { - for (int i=0; i<curve->cpfx; ++i) { - QPointF p = qt_to_qpointf(curve->apfx[i], scale) + oset; - path->lineTo(p); - } - break; - } - case TT_PRIM_QSPLINE: { - const QPainterPath::Element &elm = path->elementAt(path->elementCount()-1); - QPointF prev(elm.x, elm.y); - QPointF endPoint; - for (int i=0; i<curve->cpfx - 1; ++i) { - QPointF p1 = qt_to_qpointf(curve->apfx[i], scale) + oset; - QPointF p2 = qt_to_qpointf(curve->apfx[i+1], scale) + oset; - if (i < curve->cpfx - 2) { - endPoint = QPointF((p1.x() + p2.x()) / 2, (p1.y() + p2.y()) / 2); - } else { - endPoint = p2; - } - - path->quadTo(p1, endPoint); - prev = endPoint; - } - - break; - } - case TT_PRIM_CSPLINE: { - for (int i=0; i<curve->cpfx; ) { - QPointF p2 = qt_to_qpointf(curve->apfx[i++], scale) + oset; - QPointF p3 = qt_to_qpointf(curve->apfx[i++], scale) + oset; - QPointF p4 = qt_to_qpointf(curve->apfx[i++], scale) + oset; - path->cubicTo(p2, p3, p4); - } - break; - } - default: - qWarning("QFontEngineWin::addOutlineToPath, unhandled switch case"); - } - offset += sizeof(TTPOLYCURVE) + (curve->cpfx-1) * sizeof(POINTFX); - } - path->closeSubpath(); - headerOffset += ttph->cb; - } - delete [] (char*)dataBuffer; - - return true; -} - -void QFontEngineWin::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, - QPainterPath *path, QTextItem::RenderFlags) -{ - LOGFONT lf = logfont; - // The sign must be negative here to make sure we match against character height instead of - // hinted cell height. This ensures that we get linear matching, and we need this for - // paths since we later on apply a scaling transform to the glyph outline to get the - // font at the correct pixel size. - lf.lfHeight = -unitsPerEm; - lf.lfWidth = 0; - HFONT hf = CreateFontIndirect(&lf); - HDC hdc = shared_dc(); - HGDIOBJ oldfont = SelectObject(hdc, hf); - - for(int i = 0; i < nglyphs; ++i) { - if (!addGlyphToPath(glyphs[i], positions[i], hdc, path, ttf, /*metric*/0, - qreal(fontDef.pixelSize) / unitsPerEm)) { - // Some windows fonts, like "Modern", are vector stroke - // fonts, which are reported as TMPF_VECTOR but do not - // support GetGlyphOutline, and thus we set this bit so - // that addOutLineToPath can check it and return safely... - hasOutline = false; - break; - } - } - DeleteObject(SelectObject(hdc, oldfont)); -} - -void QFontEngineWin::addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, - QPainterPath *path, QTextItem::RenderFlags flags) -{ -#if !defined(Q_WS_WINCE) - if(tm.tmPitchAndFamily & (TMPF_TRUETYPE | TMPF_VECTOR)) { - hasOutline = true; - QFontEngine::addOutlineToPath(x, y, glyphs, path, flags); - if (hasOutline) { - // has_outline is set to false if addGlyphToPath gets - // false from GetGlyphOutline, meaning its not an outline - // font. - return; - } - } -#endif - QFontEngine::addBitmapFontToPath(x, y, glyphs, path, flags); -} - -QFontEngine::FaceId QFontEngineWin::faceId() const -{ - return _faceId; -} - -QT_BEGIN_INCLUDE_NAMESPACE -#include <qdebug.h> -QT_END_INCLUDE_NAMESPACE - -int QFontEngineWin::synthesized() const -{ - if(synthesized_flags == -1) { - synthesized_flags = 0; - if(ttf) { - const DWORD HEAD = MAKE_TAG('h', 'e', 'a', 'd'); - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - uchar data[4]; - GetFontData(hdc, HEAD, 44, &data, 4); - USHORT macStyle = getUShort(data); - if (tm.tmItalic && !(macStyle & 2)) - synthesized_flags = SynthesizedItalic; - if (fontDef.stretch != 100 && ttf) - synthesized_flags |= SynthesizedStretch; - if (tm.tmWeight >= 500 && !(macStyle & 1)) - synthesized_flags |= SynthesizedBold; - //qDebug() << "font is" << _name << - // "it=" << (macStyle & 2) << fontDef.style << "flags=" << synthesized_flags; - } - } - return synthesized_flags; -} - -QFixed QFontEngineWin::emSquareSize() const -{ - return unitsPerEm; -} - -QFontEngine::Properties QFontEngineWin::properties() const -{ - LOGFONT lf = logfont; - lf.lfHeight = unitsPerEm; - HFONT hf = CreateFontIndirect(&lf); - HDC hdc = shared_dc(); - HGDIOBJ oldfont = SelectObject(hdc, hf); - OUTLINETEXTMETRIC *otm = getOutlineTextMetric(hdc); - Properties p; - p.emSquare = unitsPerEm; - p.italicAngle = otm->otmItalicAngle; - p.postscriptName = QString::fromWCharArray((wchar_t *)((char *)otm + (quintptr)otm->otmpFamilyName)).toLatin1(); - p.postscriptName += QString::fromWCharArray((wchar_t *)((char *)otm + (quintptr)otm->otmpStyleName)).toLatin1(); - p.postscriptName = QFontEngine::convertToPostscriptFontFamilyName(p.postscriptName); - p.boundingBox = QRectF(otm->otmrcFontBox.left, -otm->otmrcFontBox.top, - otm->otmrcFontBox.right - otm->otmrcFontBox.left, - otm->otmrcFontBox.top - otm->otmrcFontBox.bottom); - p.ascent = otm->otmAscent; - p.descent = -otm->otmDescent; - p.leading = (int)otm->otmLineGap; - p.capHeight = 0; - p.lineWidth = otm->otmsUnderscoreSize; - free(otm); - DeleteObject(SelectObject(hdc, oldfont)); - return p; -} - -void QFontEngineWin::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) -{ - LOGFONT lf = logfont; - lf.lfHeight = unitsPerEm; - int flags = synthesized(); - if(flags & SynthesizedItalic) - lf.lfItalic = false; - lf.lfWidth = 0; - HFONT hf = CreateFontIndirect(&lf); - HDC hdc = shared_dc(); - HGDIOBJ oldfont = SelectObject(hdc, hf); - QFixedPoint p; - p.x = 0; - p.y = 0; - addGlyphToPath(glyph, p, hdc, path, ttf, metrics); - DeleteObject(SelectObject(hdc, oldfont)); -} - -bool QFontEngineWin::getSfntTableData(uint tag, uchar *buffer, uint *length) const -{ - if (!ttf) - return false; - HDC hdc = shared_dc(); - SelectObject(hdc, hfont); - DWORD t = qbswap<quint32>(tag); - *length = GetFontData(hdc, t, 0, buffer, *length); - return *length != GDI_ERROR; -} - -#if !defined(CLEARTYPE_QUALITY) -# define CLEARTYPE_QUALITY 5 -#endif - -extern bool qt_cleartype_enabled; - -QNativeImage *QFontEngineWin::drawGDIGlyph(HFONT font, glyph_t glyph, int margin, - const QTransform &t, QImage::Format mask_format) -{ - Q_UNUSED(mask_format) - glyph_metrics_t gm = boundingBox(glyph); - -// printf(" -> for glyph %4x\n", glyph); - - int gx = gm.x.toInt(); - int gy = gm.y.toInt(); - int iw = gm.width.toInt(); - int ih = gm.height.toInt(); - - if (iw <= 0 || iw <= 0) - return 0; - - bool has_transformation = t.type() > QTransform::TxTranslate; - -#ifndef Q_WS_WINCE - unsigned int options = ttf ? ETO_GLYPH_INDEX : 0; - XFORM xform; - - if (has_transformation) { - xform.eM11 = t.m11(); - xform.eM12 = t.m12(); - xform.eM21 = t.m21(); - xform.eM22 = t.m22(); - xform.eDx = margin; - xform.eDy = margin; - - QtHDC qthdc; - HDC hdc = qthdc.hdc(); - - SetGraphicsMode(hdc, GM_ADVANCED); - SetWorldTransform(hdc, &xform); - HGDIOBJ old_font = SelectObject(hdc, font); - - int ggo_options = GGO_METRICS | (ttf ? GGO_GLYPH_INDEX : 0); - GLYPHMETRICS tgm; - MAT2 mat; - memset(&mat, 0, sizeof(mat)); - mat.eM11.value = mat.eM22.value = 1; - - if (GetGlyphOutline(hdc, glyph, ggo_options, &tgm, 0, 0, &mat) == GDI_ERROR) { - qWarning("QWinFontEngine: unable to query transformed glyph metrics..."); - return 0; - } - - iw = tgm.gmBlackBoxX; - ih = tgm.gmBlackBoxY; - - xform.eDx -= tgm.gmptGlyphOrigin.x; - xform.eDy += tgm.gmptGlyphOrigin.y; - - SetGraphicsMode(hdc, GM_COMPATIBLE); - SelectObject(hdc, old_font); - } -#else // else winc - unsigned int options = 0; -#ifdef DEBUG - Q_ASSERT(!has_transformation); -#else - Q_UNUSED(has_transformation); -#endif -#endif - - QNativeImage *ni = new QNativeImage(iw + 2 * margin + 4, - ih + 2 * margin + 4, - QNativeImage::systemFormat(), !qt_cleartype_enabled); - - /*If cleartype is enabled we use the standard system format even on Windows CE - and not the special textbuffer format we have to use if cleartype is disabled*/ - - ni->image.fill(0xffffffff); - - HDC hdc = ni->hdc; - - SelectObject(hdc, GetStockObject(NULL_BRUSH)); - SelectObject(hdc, GetStockObject(BLACK_PEN)); - SetTextColor(hdc, RGB(0,0,0)); - SetBkMode(hdc, TRANSPARENT); - SetTextAlign(hdc, TA_BASELINE); - - HGDIOBJ old_font = SelectObject(hdc, font); - -#ifndef Q_OS_WINCE - if (has_transformation) { - SetGraphicsMode(hdc, GM_ADVANCED); - SetWorldTransform(hdc, &xform); - ExtTextOut(hdc, 0, 0, options, 0, (LPCWSTR) &glyph, 1, 0); - } else -#endif - { - ExtTextOut(hdc, -gx + margin, -gy + margin, options, 0, (LPCWSTR) &glyph, 1, 0); - } - - SelectObject(hdc, old_font); - return ni; -} - - -extern uint qt_pow_gamma[256]; - -QImage QFontEngineWin::alphaMapForGlyph(glyph_t glyph, const QTransform &xform) -{ - HFONT font = hfont; - if (qt_cleartype_enabled) { - LOGFONT lf = logfont; - lf.lfQuality = ANTIALIASED_QUALITY; - font = CreateFontIndirect(&lf); - } - QImage::Format mask_format = QNativeImage::systemFormat(); -#ifndef Q_OS_WINCE - mask_format = QImage::Format_RGB32; -#endif - - QNativeImage *mask = drawGDIGlyph(font, glyph, 0, xform, mask_format); - if (mask == 0) - return QImage(); - - QImage indexed(mask->width(), mask->height(), QImage::Format_Indexed8); - - // ### This part is kinda pointless, but we'll crash later if we don't because some - // code paths expects there to be colortables for index8-bit... - QVector<QRgb> colors(256); - for (int i=0; i<256; ++i) - colors[i] = qRgba(0, 0, 0, i); - indexed.setColorTable(colors); - - // Copy data... Cannot use QPainter here as GDI has messed up the - // Alpha channel of the ni.image pixels... - for (int y=0; y<mask->height(); ++y) { - uchar *dest = indexed.scanLine(y); - if (mask->image.format() == QImage::Format_RGB16) { - const qint16 *src = (qint16 *) ((const QImage &) mask->image).scanLine(y); - for (int x=0; x<mask->width(); ++x) - dest[x] = 255 - qGray(src[x]); - } else { - const uint *src = (uint *) ((const QImage &) mask->image).scanLine(y); - for (int x=0; x<mask->width(); ++x) { -#ifdef Q_OS_WINCE - dest[x] = 255 - qGray(src[x]); -#else - if (QNativeImage::systemFormat() == QImage::Format_RGB16) - dest[x] = 255 - qGray(src[x]); - else - dest[x] = 255 - (qt_pow_gamma[qGray(src[x])] * 255. / 2047.); -#endif - } - } - } - - // Cleanup... - delete mask; - if (qt_cleartype_enabled) { - DeleteObject(font); - } - - return indexed; -} - -#define SPI_GETFONTSMOOTHINGCONTRAST 0x200C -#define SPI_SETFONTSMOOTHINGCONTRAST 0x200D - -QImage QFontEngineWin::alphaRGBMapForGlyph(glyph_t glyph, QFixed, int margin, const QTransform &t) -{ - HFONT font = hfont; - - int contrast; - SystemParametersInfo(SPI_GETFONTSMOOTHINGCONTRAST, 0, &contrast, 0); - SystemParametersInfo(SPI_SETFONTSMOOTHINGCONTRAST, 0, (void *) 1000, 0); - - QNativeImage *mask = drawGDIGlyph(font, glyph, margin, t, QImage::Format_RGB32); - SystemParametersInfo(SPI_SETFONTSMOOTHINGCONTRAST, 0, (void *) contrast, 0); - - if (mask == 0) - return QImage(); - - // Gracefully handle the odd case when the display is 16-bit - const QImage source = mask->image.depth() == 32 - ? mask->image - : mask->image.convertToFormat(QImage::Format_RGB32); - - QImage rgbMask(mask->width(), mask->height(), QImage::Format_RGB32); - for (int y=0; y<mask->height(); ++y) { - uint *dest = (uint *) rgbMask.scanLine(y); - const uint *src = (uint *) source.scanLine(y); - for (int x=0; x<mask->width(); ++x) { - dest[x] = 0xffffffff - (0x00ffffff & src[x]); - } - } - - delete mask; - - return rgbMask; -} - -// From qfontdatabase_win.cpp -extern QFontEngine *qt_load_font_engine_win(const QFontDef &request); -QFontEngine *QFontEngineWin::cloneWithSize(qreal pixelSize) const -{ - QFontDef request = fontDef; - QString actualFontName = request.family; - if (!uniqueFamilyName.isEmpty()) - request.family = uniqueFamilyName; - request.pixelSize = pixelSize; - - QFontEngine *fontEngine = qt_load_font_engine_win(request); - if (fontEngine != NULL) - fontEngine->fontDef.family = actualFontName; - - return fontEngine; -} - -// -------------------------------------- Multi font engine - -QFontEngineMultiWin::QFontEngineMultiWin(QFontEngine *first, const QStringList &fallbacks) - : QFontEngineMulti(fallbacks.size()+1), - fallbacks(fallbacks) -{ - engines[0] = first; - first->ref.ref(); - fontDef = engines[0]->fontDef; - cache_cost = first->cache_cost; -} - -void QFontEngineMultiWin::loadEngine(int at) -{ - Q_ASSERT(at < engines.size()); - Q_ASSERT(engines.at(at) == 0); - - QString fam = fallbacks.at(at-1); - - LOGFONT lf = static_cast<QFontEngineWin *>(engines.at(0))->logfont; - memcpy(lf.lfFaceName, fam.utf16(), sizeof(wchar_t) * qMin(fam.length() + 1, 32)); // 32 = Windows hard-coded - HFONT hfont = CreateFontIndirect(&lf); - - bool stockFont = false; - if (hfont == 0) { - hfont = (HFONT)GetStockObject(ANSI_VAR_FONT); - stockFont = true; - } - engines[at] = new QFontEngineWin(fam, hfont, stockFont, lf); - engines[at]->ref.ref(); - engines[at]->fontDef = fontDef; - - // TODO: increase cost in QFontCache for the font engine loaded here -} - -QT_END_NAMESPACE |