105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
/*
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* Copyright (C) 2015-2017 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 Jolla Ltd 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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#ifndef BOOKS_LIST_WATCHER_H
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#define BOOKS_LIST_WATCHER_H
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#include "BooksTypes.h"
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#include <QQuickItem>
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#include <QtQml>
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class BooksListWatcher: public QObject
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{
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Q_OBJECT
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Q_PROPERTY(int currentIndex READ currentIndex NOTIFY currentIndexChanged)
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Q_PROPERTY(QQuickItem* listView READ listView WRITE setListView NOTIFY listViewChanged)
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Q_PROPERTY(qreal width READ width NOTIFY widthChanged)
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Q_PROPERTY(qreal height READ height NOTIFY heightChanged)
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Q_PROPERTY(QSize size READ size NOTIFY sizeChanged)
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public:
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explicit BooksListWatcher(QObject* aParent = NULL);
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int currentIndex() const { return iCurrentIndex; }
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QSize size() const { return iSize; }
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qreal width() const { return iSize.width(); }
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qreal height() const { return iSize.height(); }
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QQuickItem* listView() const { return iListView; }
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void setListView(QQuickItem* aView);
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Q_INVOKABLE void positionViewAtIndex(int aIndex);
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private:
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qreal contentX();
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qreal contentY();
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qreal contentWidth();
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qreal contentHeight();
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qreal getRealProperty(const char *name, qreal defaultValue = 0.0);
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int getCurrentIndex();
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void doPositionViewAtIndex(int aIndex);
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void positionViewAtIndex(int aIndex, int aMode);
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void updateCurrentIndex();
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void tryToRestoreCurrentIndex();
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void updateSize();
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private Q_SLOTS:
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void onResizeTimeout();
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void onWidthChanged();
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void onHeightChanged();
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void onContentXChanged();
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void onContentYChanged();
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void onContentSizeChanged();
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Q_SIGNALS:
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void listViewChanged();
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void sizeChanged();
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void widthChanged();
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void heightChanged();
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void currentIndexChanged();
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private:
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QSize iSize;
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int iCurrentIndex;
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qreal iContentX;
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qreal iContentY;
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QQuickItem* iListView;
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int iCenterMode;
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bool iPositionIsChanging;
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QTimer* iResizeTimer;
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};
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QML_DECLARE_TYPE(BooksListWatcher)
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#endif // BOOKS_LIST_WATCHER_H
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