1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _SV_GRAPHITEADAPTORS_HXX 25 #define _SV_GRAPHITEADAPTORS_HXX 26 27 // We need this to enable namespace support in libgrengine headers. 28 #define GR_NAMESPACE 29 30 // Standard Library 31 #include <stdexcept> 32 // Platform 33 34 #ifndef _SVWIN_H 35 #include <tools/svwin.h> 36 #endif 37 38 #ifndef _SV_SVSYS_HXX 39 #include <svsys.h> 40 #endif 41 42 #ifndef _SV_SALGDI_HXX 43 #include <salgdi.hxx> 44 #endif 45 46 #ifndef _SV_SALLAYOUT_HXX 47 #include <sallayout.hxx> 48 #endif 49 50 // Module 51 #include "vcl/dllapi.h" 52 53 // Libraries 54 #include <preextstl.h> 55 #include <graphite/GrClient.h> 56 #include <graphite/Font.h> 57 #include <graphite/ITextSource.h> 58 #include <postextstl.h> 59 60 // Module type definitions and forward declarations. 61 // 62 #ifndef MSC 63 // SAL/VCL types 64 class ServerFont; 65 class FreetypeServerFont; 66 67 // Graphite types 68 69 struct FontProperties : gr::FontProps 70 { 71 FontProperties(const FreetypeServerFont & font) throw(); 72 }; 73 74 namespace grutils 75 { 76 class GrFeatureParser; 77 } 78 79 // This class adapts the Sal font and graphics services to form required by 80 // the Graphite engine. 81 // @author tse 82 // 83 class VCL_PLUGIN_PUBLIC GraphiteFontAdaptor : public gr::Font 84 { 85 typedef std::map<const gr::gid16, std::pair<gr::Rect, gr::Point> > GlyphMetricMap; 86 friend class GrFontHasher; 87 public: 88 static bool IsGraphiteEnabledFont(ServerFont &) throw(); 89 90 GraphiteFontAdaptor(ServerFont & font, const sal_Int32 dpi_x, const sal_Int32 dpi_y); 91 GraphiteFontAdaptor(const GraphiteFontAdaptor &) throw(); 92 ~GraphiteFontAdaptor() throw(); 93 94 gr::Font * copyThis(); 95 96 // Basic attribute accessors. 97 virtual float ascent(); 98 virtual float descent(); 99 virtual bool bold(); 100 virtual bool italic(); 101 virtual float height(); 102 virtual unsigned int getDPIx(); 103 virtual unsigned int getDPIy(); 104 105 // Font access methods. 106 virtual const void * getTable(gr::fontTableId32 tableID, size_t * pcbSize); 107 virtual void getFontMetrics(float * ascent_out, float * descent_out = 0, float * em_square_out = 0); 108 109 // Glyph metrics. 110 virtual void getGlyphMetrics(gr::gid16 glyphID, gr::Rect & boundingBox, gr::Point & advances); 111 112 // Adaptor attributes. 113 const FontProperties & fontProperties() const throw(); 114 FreetypeServerFont & font() const throw(); 115 const grutils::GrFeatureParser * features() const { return mpFeatures; }; 116 117 private: 118 virtual void UniqueCacheInfo(ext_std::wstring &, bool &, bool &); 119 120 FreetypeServerFont& mrFont; 121 FontProperties maFontProperties; 122 const unsigned int mnDpiX, mnDpiY; 123 const float mfAscent, 124 mfDescent, 125 mfEmUnits; 126 grutils::GrFeatureParser * mpFeatures; 127 GlyphMetricMap maGlyphMetricMap; 128 }; 129 130 // Partial implementation of class GraphiteFontAdaptor. 131 // 132 inline const FontProperties & GraphiteFontAdaptor::fontProperties() const throw() { 133 return maFontProperties; 134 } 135 136 inline FreetypeServerFont & GraphiteFontAdaptor::font() const throw() { 137 return mrFont; 138 } 139 #endif // not MFC 140 141 // Partial implementation of class TextSourceAdaptor. 142 // 143 //inline const ImplLayoutArgs & TextSourceAdaptor::layoutArgs() const throw() { 144 // return _layout_args; 145 //} 146 147 148 #endif // _SV_GRAPHITEADAPTORS_HXX 149