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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1850 b45a01b8-16f6-495d-af2f-9b41ad6348cc
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defnax 2009-11-28 14:21:11 +00:00
parent 97d8640f3a
commit 87344de7d4
809 changed files with 790 additions and 722 deletions
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118
plugins/puzzle_plugin/src/pieceslist.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the example classes of the Qt Toolkit.
**
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information
** to ensure GNU General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
** exception, Nokia gives you certain additional rights. These rights
** are described in the Nokia Qt GPL Exception version 1.3, included in
** the file GPL_EXCEPTION.txt in this package.
**
** Qt for Windows(R) Licensees
** As a special exception, Nokia, as the sole copyright holder for Qt
** Designer, grants users of the Qt/Eclipse Integration plug-in the
** right for the Qt/Eclipse Integration to link to functionality
** provided by Qt Designer and its related libraries.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
****************************************************************************/
#include <QtGui>
#include "pieceslist.h"
PiecesList::PiecesList(QWidget *parent)
: QListWidget(parent)
{
setDragEnabled(true);
setViewMode(QListView::IconMode);
setIconSize(QSize(60, 60));
setSpacing(10);
setAcceptDrops(true);
setDropIndicatorShown(true);
}
void PiecesList::dragEnterEvent(QDragEnterEvent *event)
{
if (event->mimeData()->hasFormat("image/x-puzzle-piece"))
event->accept();
else
event->ignore();
}
void PiecesList::dragMoveEvent(QDragMoveEvent *event)
{
if (event->mimeData()->hasFormat("image/x-puzzle-piece")) {
event->setDropAction(Qt::MoveAction);
event->accept();
} else
event->ignore();
}
void PiecesList::dropEvent(QDropEvent *event)
{
if (event->mimeData()->hasFormat("image/x-puzzle-piece")) {
QByteArray pieceData = event->mimeData()->data("image/x-puzzle-piece");
QDataStream dataStream(&pieceData, QIODevice::ReadOnly);
QPixmap pixmap;
QPoint location;
dataStream >> pixmap >> location;
addPiece(pixmap, location);
event->setDropAction(Qt::MoveAction);
event->accept();
} else
event->ignore();
}
void PiecesList::addPiece(QPixmap pixmap, QPoint location)
{
QListWidgetItem *pieceItem = new QListWidgetItem(this);
pieceItem->setIcon(QIcon(pixmap));
pieceItem->setData(Qt::UserRole, QVariant(pixmap));
pieceItem->setData(Qt::UserRole+1, location);
pieceItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable
| Qt::ItemIsDragEnabled);
}
void PiecesList::startDrag(Qt::DropActions /*supportedActions*/)
{
QListWidgetItem *item = currentItem();
QByteArray itemData;
QDataStream dataStream(&itemData, QIODevice::WriteOnly);
QPixmap pixmap = qVariantValue<QPixmap>(item->data(Qt::UserRole));
QPoint location = item->data(Qt::UserRole+1).toPoint();
dataStream << pixmap << location;
QMimeData *mimeData = new QMimeData;
mimeData->setData("image/x-puzzle-piece", itemData);
QDrag *drag = new QDrag(this);
drag->setMimeData(mimeData);
drag->setHotSpot(QPoint(pixmap.width()/2, pixmap.height()/2));
drag->setPixmap(pixmap);
if (drag->exec(Qt::MoveAction) == Qt::MoveAction)
delete takeItem(row(item));
}