harbour-books/app/src/BooksCoverWidget.h
2015-12-12 12:38:26 +03:00

140 lines
4.8 KiB
C++

/*
* Copyright (C) 2015 Jolla Ltd.
* Contact: Slava Monich <slava.monich@jolla.com>
*
* 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 Nemo Mobile 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.
*/
#ifndef BOOKS_COVER_WIDGET_H
#define BOOKS_COVER_WIDGET_H
#include "BooksTypes.h"
#include "BooksTask.h"
#include "BooksTaskQueue.h"
#include "BooksBook.h"
#include "ZLImage.h"
#include "image/ZLQtImageManager.h"
#include <QImage>
#include <QQuickPaintedItem>
class BooksCoverWidget: public QQuickPaintedItem
{
Q_OBJECT
Q_PROPERTY(bool empty READ empty NOTIFY emptyChanged)
Q_PROPERTY(bool loading READ loading NOTIFY loadingChanged)
Q_PROPERTY(bool stretch READ stretch WRITE setStretch NOTIFY stretchChanged)
Q_PROPERTY(bool synchronous READ synchronous WRITE setSynchronous NOTIFY synchronousChanged)
Q_PROPERTY(qreal borderWidth READ borderWidth WRITE setBorderWidth NOTIFY borderWidthChanged)
Q_PROPERTY(qreal borderRadius READ borderRadius WRITE setBorderRadius NOTIFY borderRadiusChanged)
Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor NOTIFY borderColorChanged)
Q_PROPERTY(QUrl defaultCover READ defaultCover WRITE setDefaultCover NOTIFY defaultCoverChanged)
Q_PROPERTY(BooksBook* book READ book WRITE setBook NOTIFY bookChanged)
Q_PROPERTY(qreal centerX READ centerX NOTIFY centerXChanged)
Q_PROPERTY(qreal centerY READ centerY NOTIFY centerYChanged)
Q_PROPERTY(QPoint center READ center NOTIFY centerChanged)
public:
BooksCoverWidget(QQuickItem* aParent = NULL);
~BooksCoverWidget();
bool empty() const;
bool loading() const;
qreal borderWidth() const { return iBorderRadius; }
void setBorderWidth(qreal aWidth);
qreal borderRadius() const { return iBorderRadius; }
void setBorderRadius(qreal aRadius);
QColor borderColor() const { return iBorderColor; }
void setBorderColor(QColor aColor);
QUrl defaultCover() const { return iDefaultCover; }
void setDefaultCover(QUrl aUrl);
BooksBook* book() const { return iBook; }
void setBook(BooksBook* aBook);
bool stretch() const { return iStretch; }
void setStretch(bool aValue);
bool synchronous() const { return iSynchronous; }
void setSynchronous(bool aValue);
qreal centerX() const { return iCenter.x(); }
qreal centerY() const { return iCenter.y(); }
QPoint center() const { return iCenter; }
Q_SIGNALS:
void bookChanged();
void emptyChanged();
void loadingChanged();
void stretchChanged();
void synchronousChanged();
void borderWidthChanged();
void borderRadiusChanged();
void borderColorChanged();
void defaultCoverChanged();
void centerXChanged();
void centerYChanged();
void centerChanged();
private Q_SLOTS:
void onCoverImageChanged();
void onSizeChanged();
void onScaleTaskDone();
private:
void paint(QPainter *painter);
void scaleImage(bool aWasEmpty);
void scaleImage() { scaleImage(empty()); }
void updateCenter();
private:
class ScaleTask;
class DefaultImage;
shared_ptr<BooksTaskQueue> iTaskQueue;
ScaleTask* iScaleTask;
QImage iScaledImage;
QImage iCoverImage;
BooksBook* iBook;
QImage* iDefaultImage;
qreal iBorderWidth;
qreal iBorderRadius;
QColor iBorderColor;
QUrl iDefaultCover;
QString iTitle;
QPoint iCenter;
bool iStretch;
bool iSynchronous;
};
#endif // BOOKS_COVER_WIDGET_H