428 lines
19 KiB
C++
428 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef _SV_OUTFONT_HXX
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#define _SV_OUTFONT_HXX
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#include <tools/string.hxx>
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#include <i18npool/lang.h>
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#include <tools/gen.hxx>
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#include <tools/solar.h>
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#include <vcl/dllapi.h>
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#include <unotools/fontdefs.hxx>
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#include <vcl/vclenum.hxx>
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#include <boost/unordered_map.hpp>
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class ImplDevFontListData;
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class ImplGetDevFontList;
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class ImplGetDevSizeList;
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class ImplFontEntry;
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class ImplDirectFontSubstitution;
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class ImplPreMatchFontSubstitution;
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class ImplGlyphFallbackFontSubstitution;
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class FontSelectPattern;
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class Font;
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class ConvertChar;
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struct FontMatchStatus;
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class OutputDevice;
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namespace com { namespace sun { namespace star { namespace lang { struct Locale; }}}}
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// ----------------------
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// - ImplFontAttributes -
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// ----------------------
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// device independent font properties
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class ImplFontAttributes
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{
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public: // TODO: create matching interface class
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const String& GetFamilyName() const { return maName; }
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const String& GetStyleName() const { return maStyleName; }
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FontWeight GetWeight() const { return meWeight; }
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FontItalic GetSlant() const { return meItalic; }
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FontFamily GetFamilyType() const { return meFamily; }
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FontPitch GetPitch() const { return mePitch; }
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FontWidth GetWidthType() const { return meWidthType; }
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bool IsSymbolFont() const { return mbSymbolFlag; }
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bool operator==(const ImplFontAttributes& rOther) const;
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bool operator!=(const ImplFontAttributes& rOther) const
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{
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return !(*this == rOther);
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}
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public: // TODO: hide members behind accessor methods
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String maName; // Font Family Name
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String maStyleName; // Font Style Name
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FontWeight meWeight; // Weight Type
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FontItalic meItalic; // Slant Type
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FontFamily meFamily; // Family Type
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FontPitch mePitch; // Pitch Type
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FontWidth meWidthType; // Width Type
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bool mbSymbolFlag;
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};
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// -------------------------
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// - ImplDevFontAttributes -
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// -------------------------
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// device dependent font properties
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class ImplDevFontAttributes : public ImplFontAttributes
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{
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public: // TODO: create matching interface class
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const String& GetAliasNames() const { return maMapNames; }
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int GetQuality() const { return mnQuality; }
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bool IsRotatable() const { return mbOrientation; }
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bool IsDeviceFont() const { return mbDevice; }
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bool IsEmbeddable() const { return mbEmbeddable; }
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bool IsSubsettable() const { return mbSubsettable; }
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public: // TODO: hide members behind accessor methods
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String maMapNames; // List of family name aliass separated with ';'
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int mnQuality; // Quality (used when similar fonts compete)
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bool mbOrientation; // true: physical font can be rotated
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bool mbDevice; // true: built in font
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bool mbSubsettable; // true: a subset of the font can be created
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bool mbEmbeddable; // true: the font can be embedded
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};
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// ----------------
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// - PhysicalFontFace -
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// ----------------
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// TODO: no more direct access to members
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// TODO: add reference counting
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// TODO: get rid of height/width for scalable fonts
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// TODO: make cloning cheaper
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// abstract base class for physical font faces
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class VCL_PLUGIN_PUBLIC PhysicalFontFace : public ImplDevFontAttributes
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{
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public:
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// by using an PhysicalFontFace object as a factory for its corresponding
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// ImplFontEntry an ImplFontEntry can be extended to cache device and
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// font instance specific data
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virtual ImplFontEntry* CreateFontInstance( FontSelectPattern& ) const = 0;
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virtual int GetHeight() const { return mnHeight; }
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virtual int GetWidth() const { return mnWidth; }
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virtual sal_IntPtr GetFontId() const = 0;
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int GetFontMagic() const { return mnMagic; }
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bool IsScalable() const { return (mnHeight == 0); }
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bool CheckMagic( int n ) const { return (n == mnMagic); }
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PhysicalFontFace* GetNextFace() const { return mpNext; }
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PhysicalFontFace* CreateAlias() const { return Clone(); }
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bool IsBetterMatch( const FontSelectPattern&, FontMatchStatus& ) const;
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StringCompare CompareWithSize( const PhysicalFontFace& ) const;
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StringCompare CompareIgnoreSize( const PhysicalFontFace& ) const;
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virtual ~PhysicalFontFace() {}
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virtual PhysicalFontFace* Clone() const = 0;
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protected:
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explicit PhysicalFontFace( const ImplDevFontAttributes&, int nMagic );
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void SetBitmapSize( int nW, int nH ) { mnWidth=nW; mnHeight=nH; }
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long mnWidth; // Width (in pixels)
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long mnHeight; // Height (in pixels)
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private:
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friend class ImplDevFontListData;
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const int mnMagic; // poor man's RTTI
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PhysicalFontFace* mpNext;
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};
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class FontSelectPatternAttributes : public ImplFontAttributes
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{
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public:
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FontSelectPatternAttributes( const Font&, const String& rSearchName,
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const Size&, float fExactHeight );
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FontSelectPatternAttributes( const PhysicalFontFace&, const Size&,
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float fExactHeight, int nOrientation, bool bVertical );
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size_t hashCode() const;
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bool operator==(const FontSelectPatternAttributes& rOther) const;
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bool operator!=(const FontSelectPatternAttributes& rOther) const
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{
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return !(*this == rOther);
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}
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public:
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String maTargetName; // name of the font name token that is chosen
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String maSearchName; // name of the font that matches best
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int mnWidth; // width of font in pixel units
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int mnHeight; // height of font in pixel units
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float mfExactHeight; // requested height (in pixels with subpixel details)
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int mnOrientation; // text orientation in 3600 system
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LanguageType meLanguage; // text language
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bool mbVertical; // vertical mode of requested font
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bool mbNonAntialiased; // true if antialiasing is disabled
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bool mbEmbolden; // Force emboldening
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ItalicMatrix maItalicMatrix; // Force matrix for slant
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};
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class FontSelectPattern : public FontSelectPatternAttributes
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{
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public:
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FontSelectPattern( const Font&, const String& rSearchName,
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const Size&, float fExactHeight );
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FontSelectPattern( const PhysicalFontFace&, const Size&,
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float fExactHeight, int nOrientation, bool bVertical );
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public: // TODO: change to private
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const PhysicalFontFace* mpFontData; // a matching PhysicalFontFace object
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ImplFontEntry* mpFontEntry; // pointer to the resulting FontCache entry
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void copyAttributes(const FontSelectPatternAttributes &rAttributes);
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};
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// -------------------
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// - ImplDevFontList -
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// -------------------
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// TODO: merge with ImplFontCache
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// TODO: rename to LogicalFontManager
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class VCL_PLUGIN_PUBLIC ImplDevFontList
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{
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private:
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friend class WinGlyphFallbackSubstititution;
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mutable bool mbMatchData; // true if matching attributes are initialized
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bool mbMapNames; // true if MapNames are available
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typedef boost::unordered_map<const String, ImplDevFontListData*,FontNameHash> DevFontList;
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DevFontList maDevFontList;
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ImplPreMatchFontSubstitution* mpPreMatchHook; // device specific prematch substitution
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ImplGlyphFallbackFontSubstitution* mpFallbackHook; // device specific glyh fallback substitution
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public:
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explicit ImplDevFontList();
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virtual ~ImplDevFontList();
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// fill the list with device fonts
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void Add( PhysicalFontFace* );
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void Clear();
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int Count() const { return maDevFontList.size(); }
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// find the device font
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ImplDevFontListData* FindFontFamily( const String& rFontName ) const;
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ImplDevFontListData* ImplFindByFont( FontSelectPattern&, bool bPrinter, ImplDirectFontSubstitution* ) const;
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ImplDevFontListData* ImplFindBySearchName( const String& ) const;
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// suggest fonts for glyph fallback
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ImplDevFontListData* GetGlyphFallbackFont( FontSelectPattern&,
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rtl::OUString& rMissingCodes, int nFallbackLevel ) const;
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// prepare platform specific font substitutions
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void SetPreMatchHook( ImplPreMatchFontSubstitution* );
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void SetFallbackHook( ImplGlyphFallbackFontSubstitution* );
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// misc utilities
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ImplDevFontList* Clone( bool bScalable, bool bEmbeddable ) const;
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ImplGetDevFontList* GetDevFontList() const;
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ImplGetDevSizeList* GetDevSizeList( const String& rFontName ) const;
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ImplDevFontListData* ImplFindByTokenNames(const rtl::OUString& rTokenStr) const;
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protected:
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void InitMatchData() const;
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bool AreMapNamesAvailable() const { return mbMapNames; }
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ImplDevFontListData* ImplFindByAliasName(const rtl::OUString& rSearchName,
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const rtl::OUString& rShortName) const;
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ImplDevFontListData* ImplFindBySubstFontAttr( const utl::FontNameAttr& ) const;
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ImplDevFontListData* ImplFindByAttributes(sal_uLong nSearchType, FontWeight, FontWidth,
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FontItalic, const rtl::OUString& rSearchFamily) const;
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ImplDevFontListData* FindDefaultFont() const;
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private:
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void InitGenericGlyphFallback() const;
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mutable ImplDevFontListData** mpFallbackList;
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mutable int mnFallbackCount;
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};
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// --------------------
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// - ImplKernPairData -
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// --------------------
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// TODO: get rid of ImplKernPairData and use outdev.hxx's KerningPair struct
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// the problem is that outdev.hxx is too high level for the device layers
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// and outdev.hxx's customers depend on KerningPair being defined there
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struct ImplKernPairData
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{
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sal_uInt16 mnChar1;
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sal_uInt16 mnChar2;
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long mnKern;
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};
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// -----------------------
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// - ImplFontMetricData -
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// -----------------------
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class ImplFontMetricData : public ImplFontAttributes
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{
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public:
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explicit ImplFontMetricData( const FontSelectPattern& );
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void ImplInitTextLineSize( const OutputDevice* pDev );
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void ImplInitAboveTextLineSize();
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public: // TODO: hide members behind accessor methods
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// font instance attributes from the font request
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long mnWidth; // Reference Width
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short mnOrientation; // Rotation in 1/10 degrees
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// font metrics measured for the font instance
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long mnAscent; // Ascent
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long mnDescent; // Descent
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long mnIntLeading; // Internal Leading
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long mnExtLeading; // External Leading
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int mnSlant; // Slant (Italic/Oblique)
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long mnMinKashida; // Minimal width of kashida (Arabic)
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// font attributes queried from the font instance
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int meFamilyType; // Font Family Type
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bool mbDevice; // Flag for Device Fonts
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bool mbScalableFont;
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bool mbKernableFont;
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// font metrics that are usually derived from the measurements
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long mnUnderlineSize; // Lineheight of Underline
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long mnUnderlineOffset; // Offset from Underline to Baseline
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long mnBUnderlineSize; // Height of bold underline
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long mnBUnderlineOffset; // Offset from bold underline to baseline
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long mnDUnderlineSize; // Height of double underline
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long mnDUnderlineOffset1; // Offset from double underline to baseline
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long mnDUnderlineOffset2; // Offset from double underline to baseline
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long mnWUnderlineSize; // Height of WaveLine underline
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long mnWUnderlineOffset; // Offset from WaveLine underline to baseline, but centrered to WaveLine
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long mnAboveUnderlineSize; // Height of single underline (for Vertical Right)
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long mnAboveUnderlineOffset; // Offset from single underline to baseline (for Vertical Right)
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long mnAboveBUnderlineSize; // Height of bold underline (for Vertical Right)
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long mnAboveBUnderlineOffset; // Offset from bold underline to baseline (for Vertical Right)
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long mnAboveDUnderlineSize; // Height of double underline (for Vertical Right)
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long mnAboveDUnderlineOffset1; // Offset from double underline to baseline (for Vertical Right)
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long mnAboveDUnderlineOffset2; // Offset from double underline to baseline (for Vertical Right)
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long mnAboveWUnderlineSize; // Height of WaveLine-strike-out (for Vertical Right)
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long mnAboveWUnderlineOffset; // Offset from WaveLine-strike-out to baseline, but centrered to to WaveLine (for Vertical Right)
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long mnStrikeoutSize; // Height of single strike-out
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long mnStrikeoutOffset; // Offset from single strike-out to baseline
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long mnBStrikeoutSize; // Height of bold strike-out
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long mnBStrikeoutOffset; // Offset of bold strike-out to baseline
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long mnDStrikeoutSize; // Height of double strike-out
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long mnDStrikeoutOffset1; // Offset of double strike-out to baseline
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long mnDStrikeoutOffset2; // Offset of double strike-out to baseline
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};
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// -----------------
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// - ImplFontEntry -
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// ------------------
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// TODO: rename ImplFontEntry to LogicalFontInstance
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// TODO: allow sharing of metrics for related fonts
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class VCL_PLUGIN_PUBLIC ImplFontEntry
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{
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public:
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explicit ImplFontEntry( const FontSelectPattern& );
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virtual ~ImplFontEntry();
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public: // TODO: make data members private
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FontSelectPattern maFontSelData; // FontSelectionData
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ImplFontMetricData maMetric; // Font Metric
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const ConvertChar* mpConversion; // used e.g. for StarBats->StarSymbol
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long mnLineHeight;
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sal_uLong mnRefCount;
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sal_uInt16 mnSetFontFlags; // Flags returned by SalGraphics::SetFont()
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short mnOwnOrientation; // text angle if lower layers don't rotate text themselves
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short mnOrientation; // text angle in 3600 system
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bool mbInit; // true if maMetric member is valid
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void AddFallbackForUnicode( sal_UCS4, FontWeight eWeight, const String& rFontName );
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bool GetFallbackForUnicode( sal_UCS4, FontWeight eWeight, String* pFontName ) const;
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void IgnoreFallbackForUnicode( sal_UCS4, FontWeight eWeight, const String& rFontName );
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private:
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// cache of Unicode characters and replacement font names
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// TODO: a fallback map can be shared with many other ImplFontEntries
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// TODO: at least the ones which just differ in orientation, stretching or height
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typedef ::std::pair<sal_UCS4,FontWeight> GFBCacheKey;
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struct GFBCacheKey_Hash{ size_t operator()( const GFBCacheKey& ) const; };
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typedef ::boost::unordered_map<GFBCacheKey,String,GFBCacheKey_Hash> UnicodeFallbackList;
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UnicodeFallbackList* mpUnicodeFallbackList;
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};
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class ImplTextLineInfo
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{
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private:
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long mnWidth;
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xub_StrLen mnIndex;
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xub_StrLen mnLen;
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public:
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ImplTextLineInfo( long nWidth, xub_StrLen nIndex, xub_StrLen nLen )
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{
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mnWidth = nWidth;
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mnIndex = nIndex;
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mnLen = nLen;
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}
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long GetWidth() const { return mnWidth; }
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xub_StrLen GetIndex() const { return mnIndex; }
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xub_StrLen GetLen() const { return mnLen; }
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};
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#define MULTITEXTLINEINFO_RESIZE 16
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typedef ImplTextLineInfo* PImplTextLineInfo;
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class ImplMultiTextLineInfo
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{
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private:
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PImplTextLineInfo* mpLines;
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xub_StrLen mnLines;
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xub_StrLen mnSize;
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public:
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ImplMultiTextLineInfo();
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~ImplMultiTextLineInfo();
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void AddLine( ImplTextLineInfo* pLine );
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void Clear();
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ImplTextLineInfo* GetLine( sal_uInt16 nLine ) const
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{ return mpLines[nLine]; }
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xub_StrLen Count() const { return mnLines; }
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private:
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ImplMultiTextLineInfo( const ImplMultiTextLineInfo& );
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ImplMultiTextLineInfo& operator=( const ImplMultiTextLineInfo& );
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};
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#endif // _SV_OUTFONT_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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