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Diffstat (limited to 'examples/widgets/itemviews/puzzle/piecesmodel.cpp')
-rw-r--r-- | examples/widgets/itemviews/puzzle/piecesmodel.cpp | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/examples/widgets/itemviews/puzzle/piecesmodel.cpp b/examples/widgets/itemviews/puzzle/piecesmodel.cpp deleted file mode 100644 index a9c53ed2cd..0000000000 --- a/examples/widgets/itemviews/puzzle/piecesmodel.cpp +++ /dev/null @@ -1,215 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "piecesmodel.h" - -#include <QIcon> -#include <QMimeData> -#include <QRandomGenerator> - -PiecesModel::PiecesModel(int pieceSize, QObject *parent) - : QAbstractListModel(parent), m_PieceSize(pieceSize) -{ -} - -QVariant PiecesModel::data(const QModelIndex &index, int role) const -{ - if (!index.isValid()) - return QVariant(); - - if (role == Qt::DecorationRole) - return QIcon(pixmaps.value(index.row()).scaled(m_PieceSize, m_PieceSize, - Qt::KeepAspectRatio, Qt::SmoothTransformation)); - else if (role == Qt::UserRole) - return pixmaps.value(index.row()); - else if (role == Qt::UserRole + 1) - return locations.value(index.row()); - - return QVariant(); -} - -void PiecesModel::addPiece(const QPixmap &pixmap, const QPoint &location) -{ - int row; - if (QRandomGenerator::global()->bounded(2) == 1) - row = 0; - else - row = pixmaps.size(); - - beginInsertRows(QModelIndex(), row, row); - pixmaps.insert(row, pixmap); - locations.insert(row, location); - endInsertRows(); -} - -Qt::ItemFlags PiecesModel::flags(const QModelIndex &index) const -{ - if (index.isValid()) - return (QAbstractListModel::flags(index)|Qt::ItemIsDragEnabled); - - return Qt::ItemIsDropEnabled; -} - -bool PiecesModel::removeRows(int row, int count, const QModelIndex &parent) -{ - if (parent.isValid()) - return false; - - if (row >= pixmaps.size() || row + count <= 0) - return false; - - int beginRow = qMax(0, row); - int endRow = qMin(row + count - 1, pixmaps.size() - 1); - - beginRemoveRows(parent, beginRow, endRow); - - while (beginRow <= endRow) { - pixmaps.removeAt(beginRow); - locations.removeAt(beginRow); - ++beginRow; - } - - endRemoveRows(); - return true; -} - -QStringList PiecesModel::mimeTypes() const -{ - QStringList types; - types << "image/x-puzzle-piece"; - return types; -} - -QMimeData *PiecesModel::mimeData(const QModelIndexList &indexes) const -{ - QMimeData *mimeData = new QMimeData(); - QByteArray encodedData; - - QDataStream stream(&encodedData, QIODevice::WriteOnly); - - for (const QModelIndex &index : indexes) { - if (index.isValid()) { - QPixmap pixmap = qvariant_cast<QPixmap>(data(index, Qt::UserRole)); - QPoint location = data(index, Qt::UserRole+1).toPoint(); - stream << pixmap << location; - } - } - - mimeData->setData("image/x-puzzle-piece", encodedData); - return mimeData; -} - -bool PiecesModel::dropMimeData(const QMimeData *data, Qt::DropAction action, - int row, int column, const QModelIndex &parent) -{ - if (!data->hasFormat("image/x-puzzle-piece")) - return false; - - if (action == Qt::IgnoreAction) - return true; - - if (column > 0) - return false; - - int endRow; - - if (!parent.isValid()) { - if (row < 0) - endRow = pixmaps.size(); - else - endRow = qMin(row, pixmaps.size()); - } else { - endRow = parent.row(); - } - - QByteArray encodedData = data->data("image/x-puzzle-piece"); - QDataStream stream(&encodedData, QIODevice::ReadOnly); - - while (!stream.atEnd()) { - QPixmap pixmap; - QPoint location; - stream >> pixmap >> location; - - beginInsertRows(QModelIndex(), endRow, endRow); - pixmaps.insert(endRow, pixmap); - locations.insert(endRow, location); - endInsertRows(); - - ++endRow; - } - - return true; -} - -int PiecesModel::rowCount(const QModelIndex &parent) const -{ - return parent.isValid() ? 0 : pixmaps.size(); -} - -Qt::DropActions PiecesModel::supportedDropActions() const -{ - return Qt::CopyAction | Qt::MoveAction; -} - -void PiecesModel::addPieces(const QPixmap &pixmap) -{ - if (!pixmaps.isEmpty()) { - beginRemoveRows(QModelIndex(), 0, pixmaps.size() - 1); - pixmaps.clear(); - locations.clear(); - endRemoveRows(); - } - for (int y = 0; y < 5; ++y) { - for (int x = 0; x < 5; ++x) { - QPixmap pieceImage = pixmap.copy(x*m_PieceSize, y*m_PieceSize, m_PieceSize, m_PieceSize); - addPiece(pieceImage, QPoint(x, y)); - } - } -} |