kde-workspace/klipper/historyitem.cpp
2014-11-13 19:30:51 +02:00

124 lines
3.4 KiB
C++

/* This file is part of the KDE project
Copyright (C) 2004 Esben Mose Hansen <kde@mosehansen.dk>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "historyitem.h"
#include <QtCore/QMap>
#include <QtGui/QPixmap>
#include <KDebug>
#include "historystringitem.h"
#include "historyimageitem.h"
#include "historyurlitem.h"
HistoryItem::HistoryItem(const QByteArray& uuid) : m_uuid(uuid) {
}
HistoryItem::~HistoryItem() {
}
HistoryItem* HistoryItem::create( const QMimeData* data )
{
#if 0
int i=0;
foreach ( QString format, data->formats() ) {
kDebug() << "format(" << i++ <<"): " << format;
}
#endif
if (KUrl::List::canDecode(data))
{
KUrl::MetaDataMap metaData;
KUrl::List urls = KUrl::List::fromMimeData(data, &metaData);
QByteArray bytes = data->data("application/x-kde-cutselection");
bool cut = !bytes.isEmpty() && (bytes.at(0) == '1'); // true if 1
return new HistoryURLItem(urls, metaData, cut);
}
if (data->hasText())
{
return new HistoryStringItem(data->text());
}
if (data->hasImage())
{
QImage image = qvariant_cast<QImage>(data->imageData());
return new HistoryImageItem(QPixmap::fromImage(image));
}
return 0; // Failed.
}
HistoryItem* HistoryItem::create( QDataStream& dataStream ) {
if ( dataStream.atEnd() ) {
return 0;
}
QString type;
dataStream >> type;
if ( type == "url" ) {
KUrl::List urls;
QMap< QString, QString > metaData;
int cut;
dataStream >> urls;
dataStream >> metaData;
dataStream >> cut;
return new HistoryURLItem( urls, metaData, cut );
}
if ( type == "string" ) {
QString text;
dataStream >> text;
return new HistoryStringItem( text );
}
if ( type == "image" ) {
QPixmap image;
dataStream >> image;
return new HistoryImageItem( image );
}
kWarning() << "Failed to restore history item: Unknown type \"" << type << "\"" ;
return 0;
}
void HistoryItem::chain(HistoryItem* next)
{
m_next_uuid = next->uuid();
next->m_previous_uuid = uuid();
}
void HistoryItem::insertBetweeen(HistoryItem* prev, HistoryItem* next)
{
if (prev && next) {
prev->chain(this);
chain(next);
} else {
Q_ASSERT(!prev && !next);
// First item in chain
m_next_uuid = m_uuid;
m_previous_uuid = m_uuid;
}
#if 0 // Extra checks, if anyone ever needs them
Q_ASSERT(prev->uuid() == m_previous_uuid);
Q_ASSERT(prev->next_uuid() == m_uuid);
Q_ASSERT(next->previous_uuid() == m_uuid);
Q_ASSERT(next->uuid() == m_next_uuid);
Q_ASSERT(prev->uuid() != uuid());
Q_ASSERT(next->uuid() != uuid());
#endif
}