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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
* Copyright (C) 2005 by Riku Leino *
* riku@scribus.info *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "undostate.h"
#include "undoobject.h"
UndoState::UndoState(const QString& name, const QString& description, QPixmap* pixmap) :
transactionCode(0),
actionName_(name),
actionDescription_(description),
actionPixmap_(pixmap),
undoObject_(nullptr)
{
}
QString UndoState::getName()
{
return actionName_;
}
void UndoState::setName(const QString &newName)
{
actionName_ = newName;
}
QString UndoState::getDescription()
{
return actionDescription_;
}
void UndoState::setDescription(const QString &newDescription)
{
actionDescription_ = newDescription;
}
QPixmap* UndoState::getPixmap()
{
return actionPixmap_;
}
void UndoState::setPixmap(QPixmap *pixmap)
{
actionPixmap_ = pixmap;
}
void UndoState::undo()
{
if (undoObject_) // if !undoObject_ there's an error, hmmm
undoObject_->restore(this, true);
}
void UndoState::redo()
{
if (undoObject_)
undoObject_->restore(this, false);
}
void UndoState::setUndoObject(UndoObject *object)
{
undoObject_ = object->undoObjectPtr();
}
UndoObject* UndoState::undoObject()
{
return undoObject_;
}
UndoState::~UndoState()
{
}
/*** SimpleState **************************************************************/
SimpleState::SimpleState(const QString& name, const QString& description, QPixmap* pixmap)
: UndoState(name, description, pixmap)
{
}
bool SimpleState::contains(const QString& key)
{
return m_values.contains(key);
}
QVariant SimpleState::variant(const QString& key, const QVariant& def)
{
QMap<QString, QVariant>::const_iterator it = m_values.find(key);
if (it != m_values.end())
return it.value();
m_values[key] = def;
return def;
}
QString SimpleState::get(const QString& key, const QString& def)
{
QMap<QString, QVariant>::const_iterator it = m_values.find(key);
if (it != m_values.end())
return it.value().toString();
m_values[key] = def;
return def;
}
int SimpleState::getInt(const QString& key, int def)
{
bool ok = false;
QVariant retVar = variant(key, QVariant(def));
int ret = retVar.toInt(&ok);
if (!ok)
ret = def;
return ret;
}
uint SimpleState::getUInt(const QString& key, uint def)
{
bool ok = false;
QVariant retVar = variant(key, QVariant(def));
uint ret = retVar.toUInt(&ok);
if (!ok)
ret = def;
return ret;
}
double SimpleState::getDouble(const QString& key, double def)
{
bool ok = false;
QVariant retVar = variant(key, QVariant(def));
double ret = retVar.toDouble(&ok);
if (!ok)
ret = def;
return ret;
}
bool SimpleState::getBool(const QString& key, bool def)
{
bool ok = false;
QVariant retVar = variant(key, QVariant(def));
int ret = retVar.toInt(&ok);
if (!ok)
ret = def;
return ret;
}
void SimpleState::set(const QString& key)
{
m_values[key] = QVariant();
}
void SimpleState::set(const QString& key, const QString& value)
{
m_values[key] = QVariant(value);
}
void SimpleState::set(const QString& key, int value)
{
m_values[key] = QVariant(value);
}
void SimpleState::set(const QString& key, uint value)
{
m_values[key] = QVariant(value);
}
void SimpleState::set(const QString& key, double value)
{
m_values[key] = QVariant(value);
}
void SimpleState::set(const QString& key, bool value)
{
m_values[key] = QVariant(value);
}
SimpleState::~SimpleState()
{
}
/*** TransactionState *****************************************************/
TransactionState::TransactionState() : UndoState("")
{
size_ = 0;
}
UndoState* TransactionState::at(int index) const
{
if (index >= 0 && static_cast<uint>(index) < sizet())
return states_[index];
return nullptr;
}
UndoState* TransactionState::last() const
{
if (!states_.empty())
return states_.at(size_ - 1);
return nullptr;
}
bool TransactionState::contains(int uid) const
{
for (int i = 0; i < states_.size(); ++i)
{
UndoObject* undoObject = states_[i]->undoObject();
if (undoObject && undoObject->getUId() == static_cast<uint>(uid))
return true;
}
return false;
}
bool TransactionState::containsOnly(int uid) const
{
for (int i = 0; i < states_.size(); ++i)
{
UndoObject* undoObject = states_[i]->undoObject();
if (undoObject && undoObject->getUId() != static_cast<uint>(uid))
return false;
}
return true;
}
void TransactionState::pushBack(UndoObject *target, UndoState *state)
{
if (target && state)
{
state->setUndoObject(target);
states_.push_back(state);
++size_;
}
}
uint TransactionState::sizet() const
{
return size_;
}
void TransactionState::useActionName()
{
if (size_ > 0)
setName(states_[size_ - 1]->getName());
}
UndoObject* TransactionState::replace(ulong uid, UndoObject *newUndoObject)
{
UndoObject *tmp = nullptr;
for (int i = 0; i < states_.size(); ++i)
{
TransactionState *ts = dynamic_cast<TransactionState*>(states_[i]);
if (ts) // are we having a transaction_inside a transaction
ts->replace(uid, newUndoObject);
else if (states_[i]->undoObject() && states_[i]->undoObject()->getUId() == uid)
{
tmp = states_[i]->undoObject();
states_[i]->setUndoObject(newUndoObject);
}
}
return tmp;
}
void TransactionState::undo() // undo all attached states
{
for (int i = sizet() - 1; i > -1; --i)
{
if ((sizet() - 1) == 0)
at(i)->transactionCode = 0;
else
{
if (i == static_cast<int>(sizet() - 1))
at(i)->transactionCode = 1;
else if (i == 0)
at(i)->transactionCode = 2;
else
at(i)->transactionCode = 3;
}
if (transactionCode != 0)
at(i)->transactionCode = transactionCode;
at(i)->undo();
}
}
void TransactionState::redo() // redo all attached states
{
for (uint i = 0; i < sizet(); ++i)
{
if ((sizet() - 1) == 0)
at(i)->transactionCode = 0;
else
{
if (i == 0)
at(i)->transactionCode = 1;
else if (i == static_cast<uint>(sizet() - 1))
at(i)->transactionCode = 2;
else
at(i)->transactionCode = 3;
}
if (transactionCode != 0)
at(i)->transactionCode = transactionCode;
at(i)->redo();
}
}
TransactionState::~TransactionState()
{
for (int i = 0; i < states_.size(); ++i)
{
if (states_[i])
{
delete states_[i];
states_[i] = nullptr;
}
}
}