138 lines
4.6 KiB
C++
138 lines
4.6 KiB
C++
/*
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* Copyright (C) 2015 Jolla Ltd.
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* Contact: Slava Monich <slava.monich@jolla.com>
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*
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* You may use this file under the terms of the BSD license as follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Nemo Mobile nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "BooksCoverModel.h"
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#include "BooksShelf.h"
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#include "BooksBook.h"
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#include "HarbourDebug.h"
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BooksCoverModel::BooksCoverModel(QObject* aParent) :
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QSortFilterProxyModel(aParent)
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{
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connect(this, SIGNAL(sourceModelChanged()), SIGNAL(sourceChanged()));
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}
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bool BooksCoverModel::filterAcceptsRow(int aRow, const QModelIndex& aParent) const
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{
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BooksShelf* shelf = qobject_cast<BooksShelf*>(sourceModel());
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if (shelf) {
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BooksBook* book = qobject_cast<BooksBook*>(shelf->get(aRow));
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if (book) {
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return book->hasCoverImage();
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}
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}
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return false;
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}
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int BooksCoverModel::count() const
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{
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return rowCount(QModelIndex());
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}
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void BooksCoverModel::setSource(QObject* aSrc)
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{
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QAbstractItemModel* oldM = sourceModel();
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if (aSrc != oldM) {
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const int oldCount = count();
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if (oldM) {
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BooksShelf* oldShelf = qobject_cast<BooksShelf*>(oldM);
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if (oldShelf) {
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const int n = oldShelf->count();
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for (int i=0; i<n; i++) {
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onBookRemoved(oldShelf->bookAt(i));
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}
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}
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oldM->disconnect(this);
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}
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if (aSrc) {
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QAbstractItemModel* newM = qobject_cast<QAbstractItemModel*>(aSrc);
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if (newM) {
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setSourceModel(newM);
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BooksShelf* newShelf = qobject_cast<BooksShelf*>(newM);
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if (newShelf) {
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const int n = newShelf->count();
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for (int i=0; i<n; i++) {
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onBookAdded(newShelf->bookAt(i));
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}
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connect(newShelf,
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SIGNAL(bookAdded(BooksBook*)),
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SLOT(onBookAdded(BooksBook*)));
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connect(newShelf,
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SIGNAL(bookRemoved(BooksBook*)),
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SLOT(onBookRemoved(BooksBook*)));
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}
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connect(newM,
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SIGNAL(rowsInserted(QModelIndex,int,int)),
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SIGNAL(countChanged()));
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connect(newM,
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SIGNAL(rowsRemoved(QModelIndex,int,int)),
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SIGNAL(countChanged()));
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connect(newM,
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SIGNAL(modelReset()),
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SIGNAL(countChanged()));
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} else {
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HDEBUG("unexpected source" << aSrc);
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setSourceModel(NULL);
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}
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} else {
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setSourceModel(NULL);
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}
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if (oldCount != count()) {
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Q_EMIT countChanged();
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}
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}
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}
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void BooksCoverModel::onCoverImageChanged()
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{
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beginResetModel();
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endResetModel();
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Q_EMIT countChanged();
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}
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void BooksCoverModel::onBookAdded(BooksBook* aBook)
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{
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if (aBook) {
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connect(aBook,
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SIGNAL(coverImageChanged()),
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SLOT(onCoverImageChanged()));
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}
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}
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void BooksCoverModel::onBookRemoved(BooksBook* aBook)
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{
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if (aBook) {
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aBook->disconnect(this);
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}
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}
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