[2] | 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the documentation of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | /****************************************************************************
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| 43 | **
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| 44 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 45 | ** All rights reserved.
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| 46 | ** Contact: Nokia Corporation ([email protected])
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[2] | 47 | **
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| 48 | ** This file is part of an example program for Qt.
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| 49 | ** EDITIONS: NOLIMITS
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| 50 | **
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| 51 | ****************************************************************************/
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| 52 |
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| 53 | #include <QtGui>
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| 54 |
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| 55 | #include "dragdropmodel.h"
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| 56 |
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| 57 | DragDropModel::DragDropModel(const QStringList &strings, QObject *parent)
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| 58 | : TreeModel(strings, parent)
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| 59 | {
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| 60 | }
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| 61 |
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| 62 | bool DragDropModel::dropMimeData(const QMimeData *data,
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| 63 | Qt::DropAction action, int row, int column, const QModelIndex &parent)
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| 64 | {
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| 65 | if (action == Qt::IgnoreAction)
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| 66 | return true;
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| 67 |
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| 68 | if (!data->hasFormat("text/plain"))
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| 69 | return false;
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| 70 |
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| 71 | int beginRow;
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| 72 |
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| 73 | if (row != -1)
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| 74 | beginRow = row;
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| 75 | else if (parent.isValid())
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| 76 | beginRow = 0;
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| 77 | else
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| 78 | beginRow = rowCount(QModelIndex());
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| 79 |
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| 80 | QByteArray encodedData = data->data("text/plain");
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| 81 | QDataStream stream(&encodedData, QIODevice::ReadOnly);
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| 82 | QHash<qint64, QMap<int,QHash<int,QString> > > newItems;
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| 83 |
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| 84 | while (!stream.atEnd()) {
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| 85 | qint64 id;
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| 86 | int row;
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| 87 | int column;
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| 88 | QString text;
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| 89 | stream >> id >> row >> column >> text;
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| 90 | newItems[id][row][column] = text;
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| 91 | }
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| 92 | int rows = newItems.count();
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| 93 |
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| 94 | insertRows(beginRow, rows, parent);
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| 95 | QMap<int,QHash<int,QString> > childItems;
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| 96 | foreach (childItems, newItems.values()) {
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| 97 | QHash<int,QString> rowItems;
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| 98 | foreach (rowItems, childItems.values()) {
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| 99 | foreach (int column, rowItems.keys()) {
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| 100 | QModelIndex idx = index(beginRow, column, parent);
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| 101 | setData(idx, rowItems[column]);
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| 102 | }
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| 103 | ++beginRow;
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| 104 | }
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| 105 | }
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| 106 |
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| 107 | return true;
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| 108 | }
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| 109 |
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| 110 | Qt::ItemFlags DragDropModel::flags(const QModelIndex &index) const
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| 111 | {
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| 112 | Qt::ItemFlags defaultFlags = TreeModel::flags(index);
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| 113 |
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| 114 | if (index.isValid())
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| 115 | return Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | defaultFlags;
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| 116 | else
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| 117 | return Qt::ItemIsDropEnabled | defaultFlags;
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| 118 | }
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| 119 |
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| 120 | QMimeData *DragDropModel::mimeData(const QModelIndexList &indexes) const
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| 121 | {
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| 122 | QMimeData *mimeData = new QMimeData();
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| 123 | QByteArray encodedData;
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| 124 |
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| 125 | QDataStream stream(&encodedData, QIODevice::WriteOnly);
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| 126 |
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| 127 | foreach (QModelIndex index, indexes) {
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| 128 | if (index.isValid()) {
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| 129 | QString text = data(index, Qt::DisplayRole).toString();
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| 130 | stream << index.internalId() << index.row() << index.column() << text;
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| 131 | }
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| 132 | }
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| 133 |
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| 134 | mimeData->setData("text/plain", encodedData);
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| 135 | return mimeData;
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| 136 | }
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| 137 |
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| 138 | QStringList DragDropModel::mimeTypes() const
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| 139 | {
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| 140 | QStringList types;
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| 141 | types << "text/plain";
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| 142 | return types;
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| 143 | }
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| 144 |
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| 145 | Qt::DropActions DragDropModel::supportedDropActions() const
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| 146 | {
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| 147 | return Qt::CopyAction | Qt::MoveAction;
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| 148 | }
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