harbour-books/app/src/BooksPageWidget.h
2018-05-16 18:27:12 +03:00

211 lines
7.1 KiB
C++

/*
* Copyright (C) 2015-2018 Jolla Ltd.
* Copyright (C) 2015-2018 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 Jolla 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.
*/
#ifndef BOOKS_PAGE_WIDGET_H
#define BOOKS_PAGE_WIDGET_H
#include "BooksTypes.h"
#include "BooksTaskQueue.h"
#include "BooksSettings.h"
#include "BooksBookModel.h"
#include "BooksPos.h"
#include "BooksPaintContext.h"
#include "BooksLoadingProperty.h"
#include "ZLTextStyle.h"
#include <QQuickPaintedItem>
#include <QTimer>
#include <QList>
class BooksPageWidget: public QQuickPaintedItem, private BooksLoadingProperty
{
Q_OBJECT
Q_PROPERTY(bool loading READ loading NOTIFY loadingChanged)
Q_PROPERTY(bool selecting READ selecting NOTIFY selectingChanged)
Q_PROPERTY(bool selectionEmpty READ selectionEmpty NOTIFY selectionEmptyChanged)
Q_PROPERTY(bool pressed READ pressed WRITE setPressed NOTIFY pressedChanged)
Q_PROPERTY(bool currentPage READ currentPage WRITE setCurrentPage NOTIFY currentPageChanged)
Q_PROPERTY(int page READ page WRITE setPage NOTIFY pageChanged)
Q_PROPERTY(int leftMargin READ leftMargin WRITE setLeftMargin NOTIFY leftMarginChanged)
Q_PROPERTY(int rightMargin READ rightMargin WRITE setRightMargin NOTIFY rightMarginChanged)
Q_PROPERTY(int topMargin READ topMargin WRITE setTopMargin NOTIFY topMarginChanged)
Q_PROPERTY(int bottomMargin READ bottomMargin WRITE setBottomMargin NOTIFY bottomMarginChanged)
Q_PROPERTY(BooksBookModel* model READ model WRITE setModel NOTIFY modelChanged)
public:
class Data;
explicit BooksPageWidget(QQuickItem* aParent = NULL);
~BooksPageWidget();
bool loading() const;
bool selecting() const;
bool selectionEmpty() const;
bool pressed() const;
void setPressed(bool aPressed);
bool currentPage() const;
void setCurrentPage(bool aCurrentPage);
int page() const;
void setPage(int aPage);
BooksBookModel* model() const;
void setModel(BooksBookModel* aModel);
int leftMargin() const;
int rightMargin() const;
int topMargin() const;
int bottomMargin() const;
void setLeftMargin(int aMargin);
void setRightMargin(int aMargin);
void setTopMargin(int aMargin);
void setBottomMargin(int aMargin);
BooksMargins margins() const;
Q_INVOKABLE void handlePress(int aX, int aY);
Q_INVOKABLE void handleLongPress(int aX, int aY);
Q_INVOKABLE void handlePositionChanged(int aX, int aY);
Q_INVOKABLE void clearSelection();
Q_SIGNALS:
void loadingChanged();
void pressedChanged();
void selectingChanged();
void selectionEmptyChanged();
void currentPageChanged();
void pageChanged();
void modelChanged();
void leftMarginChanged();
void rightMarginChanged();
void topMarginChanged();
void bottomMarginChanged();
void browserLinkPressed(QString url);
void imagePressed(QString imageId, QRect rect);
void activeTouch(int touchX, int touchY);
void jumpToPage(int page);
void showFootnote(int touchX, int touchY, QString text, QString imageId);
void pushPosition(BooksPos position);
private Q_SLOTS:
void onWidthChanged();
void onHeightChanged();
void onResizeTimeout();
void onBookModelChanged();
void onBookModelDestroyed();
void onBookModelPageMarksChanged();
void onBookModelLoadingChanged();
void onTextStyleChanged();
void onInvertColorsChanged();
void onResetTaskDone();
void onRenderTaskDone();
void onClearSelectionTaskDone();
void onStartSelectionTaskDone();
void onExtendSelectionTaskDone();
void onPressTaskDone();
void onLongPressTaskDone();
void onFootnoteTaskDone();
private:
void paint(QPainter *painter);
void updateSize();
void resetView();
void releaseExtendSelectionTasks();
void scheduleRepaint();
void cancelRepaint();
bool invertColors() const;
private:
class ResetTask;
class RenderTask;
class PressTask;
class ClearSelectionTask;
class StartSelectionTask;
class ExtendSelectionTask;
class FootnoteTask;
QSharedPointer<BooksSettings> iSettings;
shared_ptr<BooksTaskQueue> iTaskQueue;
shared_ptr<ZLTextStyle> iTextStyle;
BooksPos iPageMark;
QTimer* iResizeTimer;
BooksBookModel* iModel;
BooksMargins iMargins;
shared_ptr<Data> iData;
QImage iImage;
ResetTask* iResetTask;
RenderTask* iRenderTask;
ClearSelectionTask* iClearSelectionTask;
StartSelectionTask* iStartSelectionTask;
QList<ExtendSelectionTask*> iExtendSelectionTasks;
PressTask* iPressTask;
PressTask* iLongPressTask;
FootnoteTask* iFootnoteTask;
bool iEmpty;
bool iPressed;
bool iSelecting;
bool iSelectionEmpty;
bool iCurrentPage;
int iPage;
};
inline bool BooksPageWidget::pressed() const
{ return iPressed; }
inline bool BooksPageWidget::selecting() const
{ return iSelecting; }
inline bool BooksPageWidget::selectionEmpty() const
{ return iSelectionEmpty; }
inline bool BooksPageWidget::currentPage() const
{ return iCurrentPage; }
inline int BooksPageWidget::page() const
{ return iPage; }
inline BooksBookModel* BooksPageWidget::model() const
{ return iModel; }
inline int BooksPageWidget::leftMargin() const
{ return iMargins.iLeft; }
inline int BooksPageWidget::rightMargin() const
{ return iMargins.iRight; }
inline int BooksPageWidget::topMargin() const
{ return iMargins.iTop; }
inline int BooksPageWidget::bottomMargin() const
{ return iMargins.iBottom; }
inline BooksMargins BooksPageWidget::margins() const
{ return iMargins; }
inline bool BooksPageWidget::invertColors() const
{ return iSettings && iSettings->invertColors(); }
#endif // BOOKS_PAGE_WIDGET_H