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/* This file is part of the KDE project
* 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.
*/
#include "ChangeListLevelCommand.h"
#include <KoParagraphStyle.h>
#include <KoTextBlockData.h>
#include <KoTextDocument.h>
#include <KoList.h>
#include "TextTool.h"
#include <KoListLevelProperties.h>
#include <klocalizedstring.h>
#include <QDebug>
#include <QTextCursor>
#include <QHash>
#include <QList>
#define MARGIN_DEFAULT 18 // we consider it the default value
ChangeListLevelCommand::ChangeListLevelCommand(const QTextCursor &cursor, ChangeListLevelCommand::CommandType type, int coef, KUndo2Command *parent)
: KoTextCommandBase(parent)
, m_type(type)
, m_coefficient(coef)
, m_first(true)
{
setText(kundo2_i18n("Change List Level"));
int selectionStart = qMin(cursor.anchor(), cursor.position());
int selectionEnd = qMax(cursor.anchor(), cursor.position());
QTextBlock block = cursor.block().document()->findBlock(selectionStart);
bool oneOf = (selectionStart == selectionEnd); //ensures the block containing the cursor is selected in that case
while (block.isValid() && ((block.position() < selectionEnd) || oneOf)) {
m_blocks.append(block);
if (block.textList()) {
m_lists.insert(m_blocks.size() - 1, KoTextDocument(block.document()).list(block.textList()));
Q_ASSERT(m_lists.value(m_blocks.size() - 1));
m_levels.insert(m_blocks.size() - 1, effectiveLevel(m_lists.value(m_blocks.size() - 1)->level(block)));
}
oneOf = false;
block = block.next();
}
}
ChangeListLevelCommand::~ChangeListLevelCommand()
{
}
int ChangeListLevelCommand::effectiveLevel(int level)
{
int result = -1;
if (m_type == IncreaseLevel) {
result = level + m_coefficient;
} else if (m_type == DecreaseLevel) {
result = level - m_coefficient;
} else if (m_type == SetLevel) {
result = m_coefficient;
}
result = qMax(1, qMin(10, result));
return result;
}
void ChangeListLevelCommand::redo()
{
if (!m_first) {
KoTextCommandBase::redo();
UndoRedoFinalizer finalizer(this);
for (int i = 0; i < m_blocks.size(); ++i) {
m_lists.value(i)->updateStoredList(m_blocks.at(i));
QTextBlock currentBlock(m_blocks.at(i));
KoTextBlockData userData(currentBlock);
userData.setCounterWidth(-1.0);
}
} else {
for (int i = 0; i < m_blocks.size() && m_lists.value(i); ++i) {
if (!m_lists.value(i)->style()->hasLevelProperties(m_levels.value(i))) {
KoListLevelProperties llp = m_lists.value(i)->style()->levelProperties(m_levels.value(i));
if (llp.alignmentMode() == false) {
//old list mode, see KoListLevelProperties::alignmentMode() documentation
llp.setIndent((m_levels.value(i) - 1) * 20); //TODO make this configurable
} else {
llp.setTabStopPosition(MARGIN_DEFAULT * (m_levels.value(i) + 1));
llp.setMargin(MARGIN_DEFAULT * (m_levels.value(i) + 1));
llp.setTextIndent(- MARGIN_DEFAULT);
}
llp.setDisplayLevel(llp.displayLevel() + m_coefficient);
llp.setLevel(m_levels.value(i));
m_lists.value(i)->style()->setLevelProperties(llp);
}
m_lists.value(i)->add(m_blocks.at(i), m_levels.value(i));
}
}
m_first = false;
}
void ChangeListLevelCommand::undo()
{
KoTextCommandBase::undo();
UndoRedoFinalizer finalizer(this);
for (int i = 0; i < m_blocks.size(); ++i) {
if (m_blocks.at(i).textList()) {
m_lists.value(i)->updateStoredList(m_blocks.at(i));
}
QTextBlock currentBlock(m_blocks.at(i));
KoTextBlockData userData(currentBlock);
userData.setCounterWidth(-1.0);
}
}
bool ChangeListLevelCommand::mergeWith(const KUndo2Command *)
{
return false;
}
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