File indexing completed on 2024-05-05 16:10:56

 /*
  * This file is part of the DOM implementation for KDE.
  *
  * Copyright (C) 2009 Vyacheslav Tokarev (tsjoker@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef Render_Position_H
 #define Render_Position_H
 
 #include "xml/dom_position.h"
 #include "rendering/render_object.h"
 
 using DOM::Position;
 
 namespace DOM
 {
 class NodeImpl;
 }
 
 using DOM::NodeImpl;
 
 namespace khtml
 {
 class InlineBox;
 
 class RenderPosition
 {
 public:
     // constructs empty position
     RenderPosition() {}
     RenderPosition(const Position &position) : m_position(position) {}
     RenderPosition(NodeImpl *node, int offset);
 
     static RenderPosition fromDOMPosition(const Position &position);
 
     Position position() const
     {
         return m_position;
     }
     const RenderObject *renderer() const
     {
         return m_position.isEmpty() ? nullptr : m_position.node()->renderer();
     }
     NodeImpl *node() const
     {
         return m_position.node();
     }
     int domOffset() const
     {
         return m_position.offset();
     }
 
     inline bool isEmpty() const
     {
         return m_position.isEmpty();
     }
     inline bool notEmpty() const
     {
         return m_position.notEmpty();
     }
 
     // QRect caretRegion() const;
 
     // int renderedOffset() const; // convert to rendered offset, though we need to eliminate other code using it
     int renderedOffset()
     {
         int result;
         getInlineBoxAndOffset(result);
         return result;
     }
 
     bool inRenderedContent()
     {
         return renderer();
     }
     static bool inRenderedContent(const Position &position)
     {
         return fromDOMPosition(position).inRenderedContent();
     }
 
     // implementation: same RootInlineBox
     static bool rendersOnSameLine(const RenderPosition &self, const RenderPosition &other);
     // implementation: either renderers are different, or inline boxes or offsets inside
     static bool rendersInDifferentPosition(const RenderPosition &self, const RenderPosition &other);
 
     // static bool rendersOnDifferentLine(); // compare inline boxes and its roots
 
     // bool isFirstOnRenderedLine() const; // either iterate backwards over DOM tree or check if we're at the beginning of the RootInlineBox?
     // bool isLastOnRenderedLine() const; // -||-
 
     RenderPosition previousLinePosition(int);
     RenderPosition nextLinePosition(int);
 
 protected:
     // returns rendered offset
     InlineBox *getInlineBoxAndOffset(int &offset) const;
 
 private:
     Position m_position;
     // affinity thing, so we'll have where to put caret at the end of inline box or at the start of next one
 };
 
 inline bool operator==(const RenderPosition &a, const RenderPosition &b)
 {
     return a.position() == b.position();
 }
 
 inline bool operator!=(const RenderPosition &a, const RenderPosition &b)
 {
     return !(a == b);
 }
 
 QDebug operator<<(QDebug stream, const RenderPosition &renderPosition);
 
 } // namespace
 
 #endif