2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
3 * (C) 2000 Antti Koivisto (koivisto@kde.org)
4 * (C) 2000 Dirk Mueller (mueller@kde.org)
5 * Copyright (C) 2003, 2006, 2007, 2011 Apple Inc. All rights reserved.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
27 #include "PlatformString.h"
32 class RenderSVGResource;
36 enum TrailingExpansionBehavior {
37 AllowTrailingExpansion,
38 ForbidTrailingExpansion
41 TextRun(const UChar* c, int len, bool allowTabs = false, int xpos = 0, int expansion = 0, TrailingExpansionBehavior trailingExpansionBehavior = AllowTrailingExpansion, bool rtl = false, bool directionalOverride = false,
42 bool applyRunRounding = true, bool applyWordRounding = true)
46 , m_expansion(expansion)
47 , m_trailingExpansionBehavior(trailingExpansionBehavior)
49 , m_horizontalGlyphStretch(1)
51 , m_allowTabs(allowTabs)
53 , m_directionalOverride(directionalOverride)
54 , m_applyRunRounding(applyRunRounding)
55 , m_applyWordRounding(applyWordRounding)
56 , m_disableSpacing(false)
58 , m_referencingRenderObject(0)
59 , m_activePaintingResource(0)
64 TextRun(const String& s, bool allowTabs = false, int xpos = 0, int expansion = 0, TrailingExpansionBehavior trailingExpansionBehavior = AllowTrailingExpansion, bool rtl = false, bool directionalOverride = false,
65 bool applyRunRounding = true, bool applyWordRounding = true)
66 : m_characters(s.characters())
69 , m_expansion(expansion)
70 , m_trailingExpansionBehavior(trailingExpansionBehavior)
72 , m_horizontalGlyphStretch(1)
74 , m_allowTabs(allowTabs)
76 , m_directionalOverride(directionalOverride)
77 , m_applyRunRounding(applyRunRounding)
78 , m_applyWordRounding(applyWordRounding)
79 , m_disableSpacing(false)
81 , m_referencingRenderObject(0)
82 , m_activePaintingResource(0)
87 UChar operator[](int i) const { return m_characters[i]; }
88 const UChar* data(int i) const { return &m_characters[i]; }
90 const UChar* characters() const { return m_characters; }
91 int length() const { return m_len; }
93 void setText(const UChar* c, int len) { m_characters = c; m_len = len; }
96 float horizontalGlyphStretch() const { return m_horizontalGlyphStretch; }
97 void setHorizontalGlyphStretch(float scale) { m_horizontalGlyphStretch = scale; }
100 bool allowTabs() const { return m_allowTabs; }
101 int xPos() const { return m_xpos; }
102 int expansion() const { return m_expansion; }
103 bool allowsTrailingExpansion() const { return m_trailingExpansionBehavior == AllowTrailingExpansion; }
104 bool rtl() const { return m_rtl; }
105 bool ltr() const { return !m_rtl; }
106 bool directionalOverride() const { return m_directionalOverride; }
107 bool applyRunRounding() const { return m_applyRunRounding; }
108 bool applyWordRounding() const { return m_applyWordRounding; }
109 bool spacingDisabled() const { return m_disableSpacing; }
111 void disableSpacing() { m_disableSpacing = true; }
112 void disableRoundingHacks() { m_applyRunRounding = m_applyWordRounding = false; }
113 void setRTL(bool b) { m_rtl = b; }
114 void setDirectionalOverride(bool override) { m_directionalOverride = override; }
116 #if ENABLE(SVG_FONTS)
117 RenderObject* referencingRenderObject() const { return m_referencingRenderObject; }
118 void setReferencingRenderObject(RenderObject* object) { m_referencingRenderObject = object; }
120 RenderSVGResource* activePaintingResource() const { return m_activePaintingResource; }
121 void setActivePaintingResource(RenderSVGResource* object) { m_activePaintingResource = object; }
125 const UChar* m_characters;
128 // m_xpos is the x position relative to the left start of the text line, not relative to the left
129 // start of the containing block. In the case of right alignment or center alignment, left start of
130 // the text line is not the same as left start of the containing block.
133 TrailingExpansionBehavior m_trailingExpansionBehavior;
135 float m_horizontalGlyphStretch;
139 bool m_directionalOverride;
140 bool m_applyRunRounding;
141 bool m_applyWordRounding;
142 bool m_disableSpacing;
144 #if ENABLE(SVG_FONTS)
145 RenderObject* m_referencingRenderObject;
146 RenderSVGResource* m_activePaintingResource;