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      1 /*
      2  * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 2000 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Dirk Mueller (mueller (at) kde.org)
      5  * Copyright (C) 2003, 2006, 2007 Apple Computer, Inc.
      6  *
      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.
     11  *
     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.
     16  *
     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.
     21  *
     22  */
     23 
     24 #ifndef TextRun_h
     25 #define TextRun_h
     26 
     27 #include "PlatformString.h"
     28 
     29 namespace WebCore {
     30 
     31 class RenderObject;
     32 class SVGPaintServer;
     33 
     34 class TextRun {
     35 public:
     36     TextRun(const UChar* c, int len, bool allowTabs = false, int xpos = 0, int padding = 0, bool rtl = false, bool directionalOverride = false,
     37               bool applyRunRounding = true, bool applyWordRounding = true)
     38         : m_characters(c)
     39         , m_len(len)
     40         , m_xpos(xpos)
     41         , m_padding(padding)
     42         , m_allowTabs(allowTabs)
     43         , m_rtl(rtl)
     44         , m_directionalOverride(directionalOverride)
     45         , m_applyRunRounding(applyRunRounding)
     46         , m_applyWordRounding(applyWordRounding)
     47         , m_disableSpacing(false)
     48 #if ENABLE(SVG_FONTS)
     49         , m_referencingRenderObject(0)
     50         , m_activePaintServer(0)
     51 #endif
     52     {
     53     }
     54 
     55     TextRun(const String& s, bool allowTabs = false, int xpos = 0, int padding = 0, bool rtl = false, bool directionalOverride = false,
     56               bool applyRunRounding = true, bool applyWordRounding = true)
     57         : m_characters(s.characters())
     58         , m_len(s.length())
     59         , m_xpos(xpos)
     60         , m_padding(padding)
     61         , m_allowTabs(allowTabs)
     62         , m_rtl(rtl)
     63         , m_directionalOverride(directionalOverride)
     64         , m_applyRunRounding(applyRunRounding)
     65         , m_applyWordRounding(applyWordRounding)
     66         , m_disableSpacing(false)
     67 #if ENABLE(SVG_FONTS)
     68         , m_referencingRenderObject(0)
     69         , m_activePaintServer(0)
     70 #endif
     71     {
     72     }
     73 
     74     UChar operator[](int i) const { return m_characters[i]; }
     75     const UChar* data(int i) const { return &m_characters[i]; }
     76 
     77     const UChar* characters() const { return m_characters; }
     78     int length() const { return m_len; }
     79 
     80     void setText(const UChar* c, int len) { m_characters = c; m_len = len; }
     81 
     82     bool allowTabs() const { return m_allowTabs; }
     83     int xPos() const { return m_xpos; }
     84     int padding() const { return m_padding; }
     85     bool rtl() const { return m_rtl; }
     86     bool ltr() const { return !m_rtl; }
     87     bool directionalOverride() const { return m_directionalOverride; }
     88     bool applyRunRounding() const { return m_applyRunRounding; }
     89     bool applyWordRounding() const { return m_applyWordRounding; }
     90     bool spacingDisabled() const { return m_disableSpacing; }
     91 
     92     void disableSpacing() { m_disableSpacing = true; }
     93     void disableRoundingHacks() { m_applyRunRounding = m_applyWordRounding = false; }
     94     void setRTL(bool b) { m_rtl = b; }
     95     void setDirectionalOverride(bool override) { m_directionalOverride = override; }
     96 
     97 #if ENABLE(SVG_FONTS)
     98     RenderObject* referencingRenderObject() const { return m_referencingRenderObject; }
     99     void setReferencingRenderObject(RenderObject* object) { m_referencingRenderObject = object; }
    100 
    101     SVGPaintServer* activePaintServer() const { return m_activePaintServer; }
    102     void setActivePaintServer(SVGPaintServer* object) { m_activePaintServer = object; }
    103 #endif
    104 
    105 private:
    106     const UChar* m_characters;
    107     int m_len;
    108 
    109     int m_xpos;
    110     int m_padding;
    111     bool m_allowTabs;
    112     bool m_rtl;
    113     bool m_directionalOverride;
    114     bool m_applyRunRounding;
    115     bool m_applyWordRounding;
    116     bool m_disableSpacing;
    117 
    118 #if ENABLE(SVG_FONTS)
    119     RenderObject* m_referencingRenderObject;
    120     SVGPaintServer* m_activePaintServer;
    121 #endif
    122 };
    123 
    124 }
    125 
    126 #endif
    127