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-/*
- * This file is part of the DOM implementation for KDE.
- *
- * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
- * (C) 1999-2003 Antti Koivisto (koivisto@kde.org)
- * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
- * (C) 2003 Apple Computer, Inc.
- *
- * 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_FLOW_H
-#define RENDER_FLOW_H
-
-#include "render_box.h"
-#include "bidi.h"
-#include "render_line.h"
-
-namespace khtml {
-
-/**
- * all geometry managing stuff is only in the block elements.
- *
- * Inline elements don't layout themselves, but the whole paragraph
- * gets flowed by the surrounding block element. This is, because
- * one needs to know the whole paragraph to calculate bidirectional
- * behaviour of text, so putting the layouting routines in the inline
- * elements is impossible.
- */
-class RenderFlow : public RenderBox
-{
-public:
- RenderFlow(DOM::NodeImpl* node)
- : RenderBox(node)
- { m_continuation = 0; m_firstLineBox = 0; m_lastLineBox = 0; }
-
- virtual RenderFlow* continuation() const { return m_continuation; }
- void setContinuation(RenderFlow* c) { m_continuation = c; }
- RenderFlow* continuationBefore(RenderObject* beforeChild);
-
- void addChildWithContinuation(RenderObject* newChild, RenderObject* beforeChild);
- virtual void addChildToFlow(RenderObject* newChild, RenderObject* beforeChild) = 0;
- virtual void addChild(RenderObject *newChild, RenderObject *beforeChild = 0);
-
- static RenderFlow* createFlow(DOM::NodeImpl* node, RenderStyle* style, RenderArena* arena);
-
- virtual void deleteLastLineBox(RenderArena* arena=0);
- virtual void deleteInlineBoxes(RenderArena* arena=0);
-
-
- InlineFlowBox* firstLineBox() const { return m_firstLineBox; }
- InlineFlowBox* lastLineBox() const { return m_lastLineBox; }
-
- virtual InlineBox* createInlineBox(bool makePlaceHolderBox, bool isRootLineBox);
-
- void paintLines(PaintInfo& i, int _tx, int _ty);
- bool hitTestLines(NodeInfo& i, int x, int y, int tx, int ty, HitTestAction hitTestAction);
-
- virtual void repaint(Priority p=NormalPriority);
-
- virtual int highestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
- virtual int lowestPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
- virtual int rightmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
- virtual int leftmostPosition(bool includeOverflowInterior=true, bool includeSelf=true) const;
-
-protected:
- // An inline can be split with blocks occurring in between the inline content.
- // When this occurs we need a pointer to our next object. We can basically be
- // split into a sequence of inlines and blocks. The continuation will either be
- // an anonymous block (that houses other blocks) or it will be an inline flow.
- RenderFlow* m_continuation;
-
- // For block flows, each box represents the root inline box for a line in the
- // paragraph.
- // For inline flows, each box represents a portion of that inline.
- InlineFlowBox* m_firstLineBox;
- InlineFlowBox* m_lastLineBox;
-};
-
-
-} //namespace
-
-#endif