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diff --git a/vcl/source/glyphs/graphite_adaptors.cxx b/vcl/source/glyphs/graphite_adaptors.cxx
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-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*************************************************************************
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * Copyright 2000, 2010 Oracle and/or its affiliates.
- *
- * OpenOffice.org - a multi-platform office productivity suite
- *
- * This file is part of OpenOffice.org.
- *
- * OpenOffice.org is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 3
- * only, as published by the Free Software Foundation.
- *
- * OpenOffice.org is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License version 3 for more details
- * (a copy is included in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU Lesser General Public License
- * version 3 along with OpenOffice.org. If not, see
- * <http://www.openoffice.org/license.html>
- * for a copy of the LGPLv3 License.
- *
- ************************************************************************/
-
-// Description: Implements the Graphite interfaces with access to the
-// platform's font and graphics systems.
-
-// MARKER(update_precomp.py): autogen include statement, do not remove
-#include "precompiled_vcl.hxx"
-
-// We need this to enable namespace support in libgrengine headers.
-#define GR_NAMESPACE
-
-// Header files
-//
-// Standard Library
-#include <string>
-#include <cassert>
-// Libraries
-#include <rtl/string.hxx>
-#include <rtl/ustring.hxx>
-#include <i18npool/mslangid.hxx>
-// Platform
-#ifndef WNT
-#include <saldisp.hxx>
-
-#include <vcl/salgdi.hxx>
-
-#include <freetype/ftsynth.h>
-
-// Module
-#include "gcach_ftyp.hxx"
-
-#include <vcl/graphite_features.hxx>
-#include <vcl/graphite_adaptors.hxx>
-
-// Module private type definitions and forward declarations.
-//
-using gr::GrResult;
-namespace
-{
- inline float from_hinted(const int x) {
- return static_cast<float>(x + 32) / 64.0;
- }
- typedef boost::unordered_map<long,bool> SilfMap;
-}
-extern FT_Error (*pFTEmbolden)(FT_GlyphSlot);
-extern FT_Error (*pFTOblique)(FT_GlyphSlot);
-
-// class CharacterRenderProperties implentation.
-//
-FontProperties::FontProperties(const FreetypeServerFont &font) throw()
-{
- clrFore = gr::kclrBlack;
- clrBack = gr::kclrTransparent;
-
- pixHeight = from_hinted(font.GetMetricsFT().height);
-
- switch (font.GetFontSelData().meWeight)
- {
- case WEIGHT_SEMIBOLD: case WEIGHT_BOLD:
- case WEIGHT_ULTRABOLD: case WEIGHT_BLACK:
- fBold = true;
- break;
- default :
- fBold = false;
- }
-
- switch (font.GetFontSelData().meItalic)
- {
- case ITALIC_NORMAL: case ITALIC_OBLIQUE:
- fItalic = true;
- break;
- default :
- fItalic = false;
- }
-
- // Get the font name, but prefix with file name hash in case
- // there are 2 fonts on the system with the same face name
- sal_Int32 nHashCode = font.GetFontFileName()->hashCode();
- ::rtl::OUStringBuffer nHashFaceName;
- nHashFaceName.append(nHashCode, 16);
- const sal_Unicode * name = font.GetFontSelData().maName.GetBuffer();
- nHashFaceName.append(name);
-
- const size_t name_sz = std::min(sizeof szFaceName/sizeof(wchar_t)-1,
- static_cast<size_t>(nHashFaceName.getLength()));
-
- std::copy(nHashFaceName.getStr(), nHashFaceName.getStr() + name_sz, szFaceName);
- szFaceName[name_sz] = '\0';
-}
-
-// class GraphiteFontAdaptor implementaion.
-//
-GraphiteFontAdaptor::GraphiteFontAdaptor(ServerFont & sfont, const sal_Int32 dpiX, const sal_Int32 dpiY)
- : mrFont(static_cast<FreetypeServerFont &>(sfont)),
- maFontProperties(static_cast<FreetypeServerFont &>(sfont)),
- mnDpiX(dpiX),
- mnDpiY(dpiY),
- mfAscent(from_hinted(static_cast<FreetypeServerFont &>(sfont).GetMetricsFT().ascender)),
- mfDescent(from_hinted(static_cast<FreetypeServerFont &>(sfont).GetMetricsFT().descender)),
- mfEmUnits(static_cast<FreetypeServerFont &>(sfont).GetMetricsFT().y_ppem),
- mpFeatures(NULL)
-{
- const rtl::OString aLang = MsLangId::convertLanguageToIsoByteString( sfont.GetFontSelData().meLanguage );
- rtl::OString name = rtl::OUStringToOString(
- sfont.GetFontSelData().maTargetName, RTL_TEXTENCODING_UTF8 );
-#ifdef DEBUG
- printf("GraphiteFontAdaptor %lx %s italic=%u bold=%u\n", (long)this, name.getStr(),
- maFontProperties.fItalic, maFontProperties.fBold);
-#endif
- sal_Int32 nFeat = name.indexOf(grutils::GrFeatureParser::FEAT_PREFIX) + 1;
- if (nFeat > 0)
- {
- rtl::OString aFeat = name.copy(nFeat, name.getLength() - nFeat);
- mpFeatures = new grutils::GrFeatureParser(*this, aFeat.getStr(), aLang.getStr());
-#ifdef DEBUG
- printf("GraphiteFontAdaptor %s/%s/%s %x language %d features %d errors\n",
- rtl::OUStringToOString( sfont.GetFontSelData().maName,
- RTL_TEXTENCODING_UTF8 ).getStr(),
- rtl::OUStringToOString( sfont.GetFontSelData().maTargetName,
- RTL_TEXTENCODING_UTF8 ).getStr(),
- rtl::OUStringToOString( sfont.GetFontSelData().maSearchName,
- RTL_TEXTENCODING_UTF8 ).getStr(),
- sfont.GetFontSelData().meLanguage,
- (int)mpFeatures->getFontFeatures(NULL), mpFeatures->parseErrors());
-#endif
- }
- else
- {
- mpFeatures = new grutils::GrFeatureParser(*this, aLang.getStr());
- }
-}
-
-GraphiteFontAdaptor::GraphiteFontAdaptor(const GraphiteFontAdaptor &rhs) throw()
- : Font(rhs),
- mrFont (rhs.mrFont), maFontProperties(rhs.maFontProperties),
- mnDpiX(rhs.mnDpiX), mnDpiY(rhs.mnDpiY),
- mfAscent(rhs.mfAscent), mfDescent(rhs.mfDescent), mfEmUnits(rhs.mfEmUnits),
- mpFeatures(NULL)
-{
- if (rhs.mpFeatures) mpFeatures = new grutils::GrFeatureParser(*(rhs.mpFeatures));
-}
-
-
-GraphiteFontAdaptor::~GraphiteFontAdaptor() throw()
-{
- maGlyphMetricMap.clear();
- if (mpFeatures) delete mpFeatures;
- mpFeatures = NULL;
-}
-
-void GraphiteFontAdaptor::UniqueCacheInfo(std::wstring & face_name_out, bool & bold_out, bool & italic_out)
-{
- face_name_out = maFontProperties.szFaceName;
- bold_out = maFontProperties.fBold;
- italic_out = maFontProperties.fItalic;
-}
-
-bool GraphiteFontAdaptor::IsGraphiteEnabledFont(ServerFont & font) throw()
-{
- static SilfMap sSilfMap;
- // NOTE: this assumes that the same FTFace pointer won't be reused,
- // so FtFontInfo::ReleaseFaceFT must only be called at shutdown.
- FreetypeServerFont & aFtFont = dynamic_cast<FreetypeServerFont &>(font);
- FT_Face aFace = reinterpret_cast<FT_FaceRec_*>(aFtFont.GetFtFace());
- SilfMap::iterator i = sSilfMap.find(reinterpret_cast<long>(aFace));
- if (i != sSilfMap.end())
- {
-#ifdef DEBUG
- if (static_cast<bool>(aFtFont.GetTable("Silf", 0)) != (*i).second)
- printf("Silf cache font mismatch\n");
-#endif
- return (*i).second;
- }
- bool bHasSilf = aFtFont.GetTable("Silf", 0);
- sSilfMap[reinterpret_cast<long>(aFace)] = bHasSilf;
- return bHasSilf;
-}
-
-
-gr::Font * GraphiteFontAdaptor::copyThis() {
- return new GraphiteFontAdaptor(*this);
-}
-
-
-unsigned int GraphiteFontAdaptor::getDPIx() {
- return mnDpiX;
-}
-
-
-unsigned int GraphiteFontAdaptor::getDPIy() {
- return mnDpiY;
-}
-
-
-float GraphiteFontAdaptor::ascent() {
- return mfAscent;
-}
-
-
-float GraphiteFontAdaptor::descent() {
- return mfDescent;
-}
-
-
-bool GraphiteFontAdaptor::bold() {
- return maFontProperties.fBold;
-}
-
-
-bool GraphiteFontAdaptor::italic() {
- return maFontProperties.fItalic;
-}
-
-
-float GraphiteFontAdaptor::height() {
- return maFontProperties.pixHeight;
-}
-
-
-void GraphiteFontAdaptor::getFontMetrics(float * ascent_out, float * descent_out, float * em_square_out) {
- if (ascent_out) *ascent_out = mfAscent;
- if (descent_out) *descent_out = mfDescent;
- if (em_square_out) *em_square_out = mfEmUnits;
-}
-
-
-const void * GraphiteFontAdaptor::getTable(gr::fontTableId32 table_id, size_t * buffer_sz)
-{
- char tag_name[5] = {char(table_id >> 24), char(table_id >> 16), char(table_id >> 8), char(table_id), 0};
- ULONG temp = *buffer_sz;
-
- const void * const tbl_buf = static_cast<FreetypeServerFont &>(mrFont).GetTable(tag_name, &temp);
- *buffer_sz = temp;
-
- return tbl_buf;
-}
-
-#define fix26_6(x) (x >> 6) + (x & 32 ? (x > 0 ? 1 : 0) : (x < 0 ? -1 : 0))
-
-// Return the glyph's metrics in pixels.
-void GraphiteFontAdaptor::getGlyphMetrics(gr::gid16 nGlyphId, gr::Rect & aBounding, gr::Point & advances)
-{
- // There used to be problems when orientation was set however, this no
- // longer seems to be the case and the Glyph Metric cache in
- // FreetypeServerFont is more efficient since it lasts between calls to VCL
-#if 1
- const GlyphMetric & metric = mrFont.GetGlyphMetric(nGlyphId);
-
- aBounding.right = aBounding.left = metric.GetOffset().X();
- aBounding.bottom = aBounding.top = -metric.GetOffset().Y();
- aBounding.right += metric.GetSize().Width();
- aBounding.bottom -= metric.GetSize().Height();
-
- advances.x = metric.GetDelta().X();
- advances.y = -metric.GetDelta().Y();
-
-#else
- // The problem with the code below is that the cache only lasts
- // as long as the life time of the GraphiteFontAdaptor, which
- // is created once per call to X11SalGraphics::GetTextLayout
- GlyphMetricMap::const_iterator gm_itr = maGlyphMetricMap.find(nGlyphId);
- if (gm_itr != maGlyphMetricMap.end())
- {
- // We've cached the results from last time.
- aBounding = gm_itr->second.first;
- advances = gm_itr->second.second;
- }
- else
- {
- // We need to look up the glyph.
- FT_Int nLoadFlags = mrFont.GetLoadFlags();
-
- FT_Face aFace = reinterpret_cast<FT_Face>(mrFont.GetFtFace());
- if (!aFace)
- {
- aBounding.top = aBounding.bottom = aBounding.left = aBounding.right = 0;
- advances.x = advances.y = 0;
- return;
- }
- FT_Error aStatus = -1;
- aStatus = FT_Load_Glyph(aFace, nGlyphId, nLoadFlags);
- if( aStatus != FT_Err_Ok || (!aFace->glyph))
- {
- aBounding.top = aBounding.bottom = aBounding.left = aBounding.right = 0;
- advances.x = advances.y = 0;
- return;
- }
- // check whether we need synthetic bold/italic otherwise metric is wrong
- if (mrFont.NeedsArtificialBold() && pFTEmbolden)
- (*pFTEmbolden)(aFace->glyph);
-
- if (mrFont.NeedsArtificialItalic() && pFTOblique)
- (*pFTOblique)(aFace->glyph);
-
- const FT_Glyph_Metrics &gm = aFace->glyph->metrics;
-
- // Fill out the bounding box an advances.
- aBounding.top = aBounding.bottom = fix26_6(gm.horiBearingY);
- aBounding.bottom -= fix26_6(gm.height);
- aBounding.left = aBounding.right = fix26_6(gm.horiBearingX);
- aBounding.right += fix26_6(gm.width);
- advances.x = fix26_6(gm.horiAdvance);
- advances.y = 0;
-
- // Now add an entry to our metrics map.
- maGlyphMetricMap[nGlyphId] = std::make_pair(aBounding, advances);
- }
-#endif
-}
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit (git 2.34.1) at 2024-07-15 15:56:33 +0000