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/* This file is part of the KDE project
* Copyright (C) 2007 Thomas Zander <zander@kde.org>
* Copyright (C) 2008 Girish Ramakrishnan <girish@forwardbias.in>
*
* 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 CHANGELISTCOMMAND
#define CHANGELISTCOMMAND
#include "TextCommandBase.h"
#include "TextTool.h"
#include <KoListStyle.h>
#include <KoList.h>
#include <KoListLevelProperties.h>
#include <QTextBlock>
#include <QList>
#include <QHash>
/**
* This command is useful to alter the list-association of a single textBlock.
*/
class ChangeListCommand : public TextCommandBase
{
public:
enum ChangeFlag {
NoFlags = 0,
ModifyExistingList = 1,
MergeWithAdjacentList = 2,
MergeExactly = 4,
CreateNumberedParagraph = 8
};
Q_DECLARE_FLAGS(ChangeFlags, ChangeFlag)
/**
* Change the list property of 'block'.
* @param block the paragraph to change the list property of
* @param style indicates which style to use.
* @param parent the parent undo command for macro functionality
*/
ChangeListCommand(const QTextCursor &cursor, KoListStyle::Style style, int level = 0,
ChangeFlags flags = ChangeFlags(ModifyExistingList | MergeWithAdjacentList),
QUndoCommand *parent = 0);
/**
* Change the list property of 'block'.
* @param block the paragraph to change the list property of
* @param style the style to apply
* @param exact if true then the actual style 'style' should be set, if false we possibly merge with another similar style that is near the block
* @param parent the parent undo command for macro functionality
*/
ChangeListCommand(const QTextCursor &cursor, KoListStyle *style, int level = 0,
ChangeFlags flags = ChangeFlags(ModifyExistingList | MergeWithAdjacentList | MergeExactly),
QUndoCommand *parent = 0);
~ChangeListCommand();
/// redo the command
virtual void redo();
/// revert the actions done in redo
virtual void undo();
/// reimplemnted from QUndoCommand
virtual int id() const {
return 58450687;
}
/// reimplemnted from QUndoCommand
virtual bool mergeWith(const QUndoCommand *other);
private:
enum CommandAction {
CreateNew,
ModifyExisting,
ReparentList,
MergeList,
RemoveList
};
void extractTextBlocks(const QTextCursor &cursor, int level);
int detectLevel(const QTextBlock &block, int givenLevel);
void initList(KoListStyle *style);
bool formatsEqual(const KoListLevelProperties &llp, const QTextListFormat &format);
int m_flags;
bool m_first;
QList<QTextBlock> m_blocks;
QHash<int, KoListLevelProperties> m_formerProperties;
QHash<int, KoListLevelProperties> m_newProperties;
QHash<int, int> m_levels;
QHash<int, KoList*> m_list;
QHash<int, KoList*> m_oldList;
QHash<int, CommandAction> m_actions;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(ChangeListCommand::ChangeFlags)
#endif
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