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 : sal_uInt8
  33 {
  34     NONE = 0,
  35     IS_IN_CLUSTER = 0x01,
  36     IS_RTL_GLYPH = 0x02,
  37     IS_DIACRITIC = 0x04,
  38     IS_VERTICAL = 0x08,
  39     IS_SPACING = 0x10,
  40     ALLOW_KASHIDA = 0x20,
  41     IS_DROPPED = 0x40,
  42     IS_CLUSTER_START = 0x80
  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_Int32 m_nOrigWidth; // original glyph width
  54     sal_Int32 m_nCharPos; // index in string
  55     sal_Int32 m_nXOffset;
  56     sal_GlyphId m_aGlyphId;
  57     sal_Int8 m_nCharCount; // number of characters making up this glyph
  58     GlyphItemFlags m_nFlags;
  59
  60 public:
  61     Point m_aLinearPos; // absolute position of non rotated string
  62     sal_Int32 m_nNewWidth; // width after adjustments
  63
  64     GlyphItem(int nCharPos, int nCharCount, sal_GlyphId aGlyphId, const Point& rLinearPos,
  65               GlyphItemFlags nFlags, int nOrigWidth, int nXOffset)
  66         : m_nOrigWidth(nOrigWidth)
  67         , m_nCharPos(nCharPos)
  68         , m_nXOffset(nXOffset)
  69         , m_aGlyphId(aGlyphId)
  70         , m_nCharCount(nCharCount)
  71         , m_nFlags(nFlags)
  72         , m_aLinearPos(rLinearPos)
  73         , m_nNewWidth(nOrigWidth)
  74     {
  75     }
  76
  77     bool IsInCluster() const { return bool(m_nFlags & GlyphItemFlags::IS_IN_CLUSTER); }
  78     bool IsRTLGlyph() const { return bool(m_nFlags & GlyphItemFlags::IS_RTL_GLYPH); }
  79     bool IsDiacritic() const { return bool(m_nFlags & GlyphItemFlags::IS_DIACRITIC); }
  80     bool IsVertical() const { return bool(m_nFlags & GlyphItemFlags::IS_VERTICAL); }
  81     bool IsSpacing() const { return bool(m_nFlags & GlyphItemFlags::IS_SPACING); }
  82     bool AllowKashida() const { return bool(m_nFlags & GlyphItemFlags::ALLOW_KASHIDA); }
  83     bool IsDropped() const { return bool(m_nFlags & GlyphItemFlags::IS_DROPPED); }
  84     bool IsClusterStart() const { return bool(m_nFlags & GlyphItemFlags::IS_CLUSTER_START); }
  85
  86     inline bool GetGlyphBoundRect(const LogicalFontInstance*, tools::Rectangle&) const;
  87     inline bool GetGlyphOutline(const LogicalFontInstance*, basegfx::B2DPolyPolygon&) const;
  88     inline void dropGlyph();
  89
  90     sal_GlyphId glyphId() const { return m_aGlyphId; }
  91     int charCount() const { return m_nCharCount; }
  92     int origWidth() const { return m_nOrigWidth; }
  93     int charPos() const { return m_nCharPos; }
  94     int xOffset() const { return m_nXOffset; }
  95 };
  96
  97 VCL_DLLPUBLIC bool GlyphItem::GetGlyphBoundRect(const LogicalFontInstance* pFontInstance,
  98                                                 tools::Rectangle& rRect) const
  99 {
 100     return pFontInstance->GetGlyphBoundRect(m_aGlyphId, rRect, IsVertical());
 101 }
 102
 103 VCL_DLLPUBLIC bool GlyphItem::GetGlyphOutline(const LogicalFontInstance* pFontInstance,
 104                                               basegfx::B2DPolyPolygon& rPoly) const
 105 {
 106     return pFontInstance->GetGlyphOutline(m_aGlyphId, rPoly, IsVertical());
 107 }
 108
 109 void GlyphItem::dropGlyph()
 110 {
 111     m_nCharPos = -1;
 112     m_nFlags |= GlyphItemFlags::IS_DROPPED;
 113 }
 114
 115 class SalLayoutGlyphsImpl : public std::vector<GlyphItem>
 116 {
 117 public:
 118     SalLayoutGlyphsImpl(LogicalFontInstance& rFontInstance)
 119         : m_rFontInstance(&rFontInstance)
 120     {
 121     }
 122     SalLayoutGlyphsImpl* clone() const;
 123     const rtl::Reference<LogicalFontInstance>& GetFont() const { return m_rFontInstance; }
 124     bool IsValid() const;
 125     void SetFlags(SalLayoutFlags flags) { mnFlags = flags; }
 126     SalLayoutFlags GetFlags() const { return mnFlags; }
 127
 128 private:
 129     rtl::Reference<LogicalFontInstance> m_rFontInstance;
 130     SalLayoutFlags mnFlags = SalLayoutFlags::NONE;
 131 };
 132
 133 #endif // INCLUDED_VCL_IMPGLYPHITEM_HXX
 134
 135 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */