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