vcl/inc/impglyphitem.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_IMPGLYPHITEM_HXX
  21 #define INCLUDED_VCL_IMPGLYPHITEM_HXX
  22
  23 #include <o3tl/typed_flags_set.hxx>
  24 #include <tools/gen.hxx>
  25 #include <vcl/dllapi.h>
  26 #include <vcl/glyphitem.hxx>
  27 #include <vcl/outdev.hxx>
  28 #include <vector>
  29
  30 #include "fontinstance.hxx"
  31
  32 enum class GlyphItemFlags
  33 {
  34     NONE = 0,
  35     IS_IN_CLUSTER = 0x001,
  36     IS_RTL_GLYPH = 0x002,
  37     IS_DIACRITIC = 0x004,
  38     IS_VERTICAL = 0x008,
  39     IS_SPACING = 0x010,
  40     ALLOW_KASHIDA = 0x020,
  41     IS_DROPPED = 0x040,
  42     IS_CLUSTER_START = 0x080
  43 };
  44 namespace o3tl
  45 {
  46 template <> struct typed_flags<GlyphItemFlags> : is_typed_flags<GlyphItemFlags, 0xff>
  47 {
  48 };
  49 };
  50
  51 class VCL_DLLPUBLIC GlyphItem
  52 {
  53     sal_GlyphId m_aGlyphId;
  54     int m_nCharCount; // number of characters making up this glyph
  55     int m_nOrigWidth; // original glyph width
  56     LogicalFontInstance* m_pFontInstance;
  57     int m_nCharPos; // index in string
  58     GlyphItemFlags m_nFlags;
  59     int m_nXOffset;
  60
  61 public:
  62     int m_nNewWidth; // width after adjustments
  63     Point m_aLinearPos; // absolute position of non rotated string
  64
  65     GlyphItem(int nCharPos, int nCharCount, sal_GlyphId aGlyphId, const Point& rLinearPos,
  66               GlyphItemFlags nFlags, int nOrigWidth, int nXOffset,
  67               LogicalFontInstance* pFontInstance)
  68         : m_aGlyphId(aGlyphId)
  69         , m_nCharCount(nCharCount)
  70         , m_nOrigWidth(nOrigWidth)
  71         , m_pFontInstance(pFontInstance)
  72         , m_nCharPos(nCharPos)
  73         , m_nFlags(nFlags)
  74         , m_nXOffset(nXOffset)
  75         , m_nNewWidth(nOrigWidth)
  76         , m_aLinearPos(rLinearPos)
  77     {
  78         assert(m_pFontInstance);
  79     }
  80
  81     bool IsInCluster() const { return bool(m_nFlags & GlyphItemFlags::IS_IN_CLUSTER); }
  82     bool IsRTLGlyph() const { return bool(m_nFlags & GlyphItemFlags::IS_RTL_GLYPH); }
  83     bool IsDiacritic() const { return bool(m_nFlags & GlyphItemFlags::IS_DIACRITIC); }
  84     bool IsVertical() const { return bool(m_nFlags & GlyphItemFlags::IS_VERTICAL); }
  85     bool IsSpacing() const { return bool(m_nFlags & GlyphItemFlags::IS_SPACING); }
  86     bool AllowKashida() const { return bool(m_nFlags & GlyphItemFlags::ALLOW_KASHIDA); }
  87     bool IsDropped() const { return bool(m_nFlags & GlyphItemFlags::IS_DROPPED); }
  88     bool IsClusterStart() const { return bool(m_nFlags & GlyphItemFlags::IS_CLUSTER_START); }
  89
  90     inline bool GetGlyphBoundRect(tools::Rectangle&) const;
  91     inline bool GetGlyphOutline(basegfx::B2DPolyPolygon&) const;
  92     inline void dropGlyph();
  93
  94     sal_GlyphId glyphId() const { return m_aGlyphId; }
  95     int charCount() const { return m_nCharCount; }
  96     int origWidth() const { return m_nOrigWidth; }
  97     int charPos() const { return m_nCharPos; }
  98     int xOffset() const { return m_nXOffset; }
  99 };
 100
 101 VCL_DLLPUBLIC bool GlyphItem::GetGlyphBoundRect(tools::Rectangle& rRect) const
 102 {
 103     return m_pFontInstance->GetGlyphBoundRect(m_aGlyphId, rRect, IsVertical());
 104 }
 105
 106 VCL_DLLPUBLIC bool GlyphItem::GetGlyphOutline(basegfx::B2DPolyPolygon& rPoly) const
 107 {
 108     return m_pFontInstance->GetGlyphOutline(m_aGlyphId, rPoly, IsVertical());
 109 }
 110
 111 void GlyphItem::dropGlyph()
 112 {
 113     m_nCharPos = -1;
 114     m_nFlags |= GlyphItemFlags::IS_DROPPED;
 115 }
 116
 117 class SalLayoutGlyphsImpl : public std::vector<GlyphItem>
 118 {
 119     friend class GenericSalLayout;
 120
 121 public:
 122     ~SalLayoutGlyphsImpl();
 123     SalLayoutGlyphsImpl* clone(SalLayoutGlyphs& rGlyphs) const;
 124     LogicalFontInstance& GetFont() const { return *m_rFontInstance; }
 125     bool IsValid() const;
 126     void Invalidate();
 127
 128 private:
 129     mutable rtl::Reference<LogicalFontInstance> m_rFontInstance;
 130     SalLayoutFlags mnFlags = SalLayoutFlags::NONE;
 131
 132     SalLayoutGlyphsImpl(SalLayoutGlyphs& rGlyphs, LogicalFontInstance& rFontInstance)
 133         : m_rFontInstance(&rFontInstance)
 134     {
 135         rGlyphs.m_pImpl = this;
 136     }
 137 };
 138
 139 #endif // INCLUDED_VCL_IMPGLYPHITEM_HXX
 140
 141 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */