102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
/*
|
|
|
|
Copyright 2014 Adam Reichold
|
|
|
|
This file is part of qpdfview.
|
|
|
|
qpdfview is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
qpdfview is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with qpdfview. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
*/
|
|
|
|
#ifndef TILEITEM_H
|
|
#define TILEITEM_H
|
|
|
|
#include <QCache>
|
|
#include <QObject>
|
|
#include <QPixmap>
|
|
|
|
#include "rendertask.h"
|
|
|
|
namespace qpdfview
|
|
{
|
|
|
|
class PageItem;
|
|
|
|
class TileItem : public RenderTaskParent
|
|
{
|
|
public:
|
|
TileItem(PageItem* page);
|
|
~TileItem();
|
|
|
|
const QRect& rect() const { return m_rect; }
|
|
void setRect(QRect rect) { m_rect = rect; }
|
|
|
|
const QRectF& cropRect() const { return m_cropRect; }
|
|
void resetCropRect() { m_cropRect = QRectF(); }
|
|
void setCropRect(const QRectF& cropRect);
|
|
|
|
void dropPixmap() { m_pixmap = QPixmap(); }
|
|
void dropObsoletePixmap() { m_obsoletePixmap = QPixmap(); }
|
|
|
|
static void dropCachedPixmaps(PageItem* page);
|
|
|
|
bool paint(QPainter* painter, QPointF topLeft);
|
|
|
|
public:
|
|
void refresh(bool keepObsoletePixmaps = false);
|
|
|
|
int startRender(bool prefetch = false);
|
|
void cancelRender();
|
|
|
|
void deleteAfterRender();
|
|
|
|
private:
|
|
void on_finished(const RenderParam& renderParam,
|
|
const QRect& rect, bool prefetch,
|
|
const QImage& image, const QRectF& cropRect);
|
|
void on_canceled();
|
|
void on_finishedOrCanceled();
|
|
|
|
private:
|
|
Q_DISABLE_COPY(TileItem)
|
|
|
|
static Settings* s_settings;
|
|
|
|
typedef QPair< PageItem*, QByteArray > CacheKey;
|
|
typedef QPair< QPixmap, QRectF > CacheObject;
|
|
|
|
static QCache< CacheKey, CacheObject > s_cache;
|
|
|
|
CacheKey cacheKey() const;
|
|
|
|
PageItem* m_page;
|
|
|
|
QRect m_rect;
|
|
QRectF m_cropRect;
|
|
|
|
bool m_pixmapError;
|
|
QPixmap m_pixmap;
|
|
QPixmap m_obsoletePixmap;
|
|
|
|
QPixmap takePixmap();
|
|
|
|
bool m_deleteAfterRender;
|
|
RenderTask m_renderTask;
|
|
|
|
};
|
|
|
|
} // qpdfview
|
|
|
|
#endif // PAGEITEM_H
|