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4430 cbradney 1
/*
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For general Scribus (>=1.3.2) copyright and licensing information please refer
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to the COPYING file provided with the program. Following this notice may exist
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a copyright and/or license notice that predates the release of Scribus 1.3.2
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for which a new license (GPL+exception) is in place.
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*/
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/***************************************************************************
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 *   Copyright (C) 2005 by Riku Leino                                      *
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 *   riku@scribus.info                                                     *
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 *                                                                         *
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 *   This program is free software; you can redistribute it and/or modify  *
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 *   it under the terms of the GNU General Public License as published by  *
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 *   the Free Software Foundation; either version 2 of the License, or     *
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 *   (at your option) any later version.                                   *
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 *                                                                         *
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 *   This program is distributed in the hope that it will be useful,       *
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
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 *   GNU General Public License for more details.                          *
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 *                                                                         *
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 *   You should have received a copy of the GNU General Public License     *
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 *   along with this program; if not, write to the                         *
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 *   Free Software Foundation, Inc.,                                       *
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 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
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 ***************************************************************************/
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#include "undostate.h"
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#include "undoobject.h"
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UndoState::UndoState(const QString& name, const QString& description, QPixmap* pixmap) :
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        transactionCode(0),
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        m_actionName(name),
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        m_actionDescription(description),
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        m_actionPixmap(pixmap),
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        m_undoObject(nullptr)
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{
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}
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const QString& UndoState::getName() const
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{
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        return m_actionName;
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}
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void UndoState::setName(const QString &newName)
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{
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        m_actionName = newName;
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}
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const QString& UndoState::getDescription() const
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{
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        return m_actionDescription;
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}
54
 
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void UndoState::setDescription(const QString &newDescription)
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{
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        m_actionDescription = newDescription;
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}
59
 
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QPixmap* UndoState::getPixmap()
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{
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        return m_actionPixmap;
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}
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void UndoState::setPixmap(QPixmap *pixmap)
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{
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        m_actionPixmap = pixmap;
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}
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void UndoState::undo()
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{
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        if (m_undoObject) // if !m_undoObject there's an error, hmmm
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                m_undoObject->restore(this, true);
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}
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76
void UndoState::redo()
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{
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        if (m_undoObject)
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                m_undoObject->restore(this, false);
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}
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82
void UndoState::setUndoObject(UndoObject *object)
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{
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        m_undoObject = object->undoObjectPtr();
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}
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87
UndoObject* UndoState::undoObject()
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{
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        return m_undoObject;
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}
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UndoState::~UndoState()
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{
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}
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97
/*** SimpleState **************************************************************/
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99
SimpleState::SimpleState(const QString& name, const QString& description, QPixmap* pixmap)
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: UndoState(name, description, pixmap)
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{
102
 
103
}
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105
bool SimpleState::contains(const QString& key)
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{
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        return m_values.contains(key);
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}
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QVariant SimpleState::variant(const QString& key, const QVariant& def)
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{
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        QMap<QString, QVariant>::const_iterator it = m_values.find(key);
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        if (it != m_values.end())
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                return it.value();
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        m_values[key] = def;
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        return def;
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}
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QString SimpleState::get(const QString& key, const QString& def)
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{
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        QMap<QString, QVariant>::const_iterator it = m_values.find(key);
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        if (it != m_values.end())
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                return it.value().toString();
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        m_values[key] = def;
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        return def;
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}
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130
int SimpleState::getInt(const QString& key, int def)
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{
132
        bool ok = false;
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        QVariant retVar = variant(key, QVariant(def));
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        int ret = retVar.toInt(&ok);
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        if (!ok)
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                ret = def;
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        return ret;
138
}
139
 
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uint SimpleState::getUInt(const QString& key, uint def)
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{
142
        bool ok = false;
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        QVariant retVar = variant(key, QVariant(def));
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        uint ret = retVar.toUInt(&ok);
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        if (!ok)
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                ret = def;
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        return ret;
148
}
149
 
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double SimpleState::getDouble(const QString& key, double def)
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{
152
        bool ok = false;
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        QVariant retVar = variant(key, QVariant(def));
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        double ret = retVar.toDouble(&ok);
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        if (!ok)
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                ret = def;
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        return ret;
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}
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bool SimpleState::getBool(const QString& key, bool def)
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{
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        bool ok = false;
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        QVariant retVar = variant(key, QVariant(def));
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        int ret = retVar.toInt(&ok);
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        if (!ok)
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                ret = def;
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        return ret;
168
}
169
 
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void SimpleState::set(const QString& key)
171
{
172
        m_values[key] = QVariant();
173
}
174
 
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void SimpleState::set(const QString& key, const QString& value)
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{
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        m_values[key] = QVariant(value);
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}
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180
void SimpleState::set(const QString& key, int value)
181
{
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        m_values[key] = QVariant(value);
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}
184
 
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void SimpleState::set(const QString& key, uint value)
186
{
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        m_values[key] = QVariant(value);
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}
189
 
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void SimpleState::set(const QString& key, double value)
191
{
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        m_values[key] = QVariant(value);
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}
194
 
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void SimpleState::set(const QString& key, bool value)
196
{
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        m_values[key] = QVariant(value);
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}
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SimpleState::~SimpleState()
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{
203
 
204
}
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206
/*** TransactionState *****************************************************/
207
 
208
TransactionState::TransactionState() : UndoState("")
209
{
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        m_size = 0;
19416 jghali 211
}
212
 
19929 jghali 213
UndoState* TransactionState::at(int index) const
19416 jghali 214
{
215
        if (index >= 0 && static_cast<uint>(index) < sizet())
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                return m_states[index];
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        return nullptr;
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}
219
 
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UndoState* TransactionState::last() const
221
{
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        if (!m_states.empty())
223
                return m_states.at(m_size - 1);
22601 craig 224
        return nullptr;
19929 jghali 225
}
226
 
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bool TransactionState::contains(int uid) const
228
{
22694 jghali 229
        for (size_t i = 0; i < m_states.size(); ++i)
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        {
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                UndoObject* undoObject = m_states[i]->undoObject();
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                if (undoObject && undoObject->getUId() == static_cast<uint>(uid))
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                        return true;
234
        }
235
        return false;
236
}
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238
bool TransactionState::containsOnly(int uid) const
239
{
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        for (size_t i = 0; i < m_states.size(); ++i)
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        {
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                UndoObject* undoObject = m_states[i]->undoObject();
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                if (undoObject && undoObject->getUId() != static_cast<uint>(uid))
244
                        return false;
245
        }
246
        return true;
247
}
248
 
249
void TransactionState::pushBack(UndoObject *target, UndoState *state)
250
{
251
        if (target && state)
252
        {
253
                state->setUndoObject(target);
22694 jghali 254
                m_states.push_back(state);
255
                ++m_size;
19416 jghali 256
        }
257
}
258
 
19929 jghali 259
uint TransactionState::sizet() const
19416 jghali 260
{
22694 jghali 261
        return m_size;
19416 jghali 262
}
263
 
264
void TransactionState::useActionName()
265
{
22694 jghali 266
        if (m_size > 0)
267
                setName(m_states[m_size - 1]->getName());
19416 jghali 268
}
269
 
270
UndoObject* TransactionState::replace(ulong uid, UndoObject *newUndoObject)
271
{
22601 craig 272
        UndoObject *tmp = nullptr;
22694 jghali 273
        for (size_t i = 0; i < m_states.size(); ++i)
19416 jghali 274
        {
22694 jghali 275
                TransactionState *ts = dynamic_cast<TransactionState*>(m_states[i]);
19416 jghali 276
                if (ts) // are we having a transaction_inside a transaction
277
                        ts->replace(uid, newUndoObject);
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                else if (m_states[i]->undoObject() && m_states[i]->undoObject()->getUId() == uid)
19416 jghali 279
                {
22694 jghali 280
                        tmp = m_states[i]->undoObject();
281
                        m_states[i]->setUndoObject(newUndoObject);
19416 jghali 282
                }
283
        }
284
        return tmp;
285
}
286
 
287
void TransactionState::undo() // undo all attached states
288
{
289
        for (int i = sizet() - 1; i > -1; --i)
290
        {
291
                if ((sizet() - 1) == 0)
292
                        at(i)->transactionCode = 0;
293
                else
294
                {
295
                        if (i == static_cast<int>(sizet() - 1))
296
                                at(i)->transactionCode = 1;
297
                        else if (i == 0)
298
                                at(i)->transactionCode = 2;
299
                        else
300
                                at(i)->transactionCode = 3;
301
                }
302
                if (transactionCode != 0)
303
                        at(i)->transactionCode = transactionCode;
304
                at(i)->undo();
305
        }
306
}
307
 
308
void TransactionState::redo() // redo all attached states
309
{
310
        for (uint i = 0; i < sizet(); ++i)
311
        {
312
                if ((sizet() - 1) == 0)
313
                        at(i)->transactionCode = 0;
314
                else
315
                {
316
                        if (i == 0)
317
                                at(i)->transactionCode = 1;
318
                        else if (i == static_cast<uint>(sizet() - 1))
319
                                at(i)->transactionCode = 2;
320
                        else
321
                                at(i)->transactionCode = 3;
322
                }
323
                if (transactionCode != 0)
324
                        at(i)->transactionCode = transactionCode;
325
                at(i)->redo();
326
        }
327
}
328
 
329
TransactionState::~TransactionState()
330
{
22694 jghali 331
        for (size_t i = 0; i < m_states.size(); ++i)
19416 jghali 332
        {
22694 jghali 333
                if (m_states[i])
19416 jghali 334
                {
22694 jghali 335
                        delete m_states[i];
336
                        m_states[i] = nullptr;
19416 jghali 337
                }
338
        }
339
}