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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com <http://qt.digia.com/>
**
** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com <http://qt.digia.com/>
**
****************************************************************************/
#ifndef PIXMAPCACHEMODEL_H
#define PIXMAPCACHEMODEL_H
#include "qmlprofiler/qmlprofilertimelinemodel.h"
#include "qmlprofiler/qmlprofilerdatamodel.h"
#include <QStringList>
#include <QColor>
#include <QSize>
namespace QmlProfilerExtension {
namespace Internal {
class PixmapCacheModel : public QmlProfiler::QmlProfilerTimelineModel
{
Q_OBJECT
public:
enum CacheState {
Uncached, // After loading started (or some other proof of existence) or after uncaching
ToBeCached, // After determining the pixmap is to be cached but before knowing its size
Cached, // After caching a pixmap or determining the size of a ToBeCached pixmap
Uncacheable, // If loading failed without ToBeCached or after a corrupt pixmap has been uncached
Corrupt // If after ToBeCached we learn that loading failed
};
enum LoadState {
Initial,
Loading,
Finished,
Error
};
struct PixmapState {
PixmapState(int width, int height, CacheState cache = Uncached) :
size(width, height), started(-1), loadState(Initial), cacheState(cache) {}
PixmapState(CacheState cache = Uncached) : started(-1), loadState(Initial), cacheState(cache) {}
QSize size;
int started;
LoadState loadState;
CacheState cacheState;
};
struct Pixmap {
Pixmap() {}
Pixmap(const QString &url) : url(url), sizes(1) {}
QString url;
QVector<PixmapState> sizes;
};
enum PixmapEventType {
PixmapSizeKnown,
PixmapReferenceCountChanged,
PixmapCacheCountChanged,
PixmapLoadingStarted,
PixmapLoadingFinished,
PixmapLoadingError,
MaximumPixmapEventType
};
struct PixmapCacheEvent {
int typeId;
PixmapEventType pixmapEventType;
int urlIndex;
int sizeIndex;
int rowNumberCollapsed;
qint64 cacheSize;
};
PixmapCacheModel(QmlProfiler::QmlProfilerModelManager *manager, QObject *parent = 0);
int rowMaxValue(int rowNumber) const;
int expandedRow(int index) const;
int collapsedRow(int index) const;
int typeId(int index) const;
QColor color(int index) const;
float relativeHeight(int index) const;
QVariantList labels() const;
QVariantMap details(int index) const;
protected:
void loadData();
void clear();
private:
void computeMaxCacheSize();
void resizeUnfinishedLoads();
void flattenLoads();
int updateCacheCount(int lastCacheSizeEvent, qint64 startTime, qint64 pixSize,
PixmapCacheEvent &newEvent, int typeId);
QVector<PixmapCacheEvent> m_data;
QVector<Pixmap> m_pixmaps;
qint64 m_maxCacheSize;
static const int s_pixmapCacheCountHue = 240;
};
} // namespace Internal
} // namespace QmlProfilerExtension
#endif // PIXMAPCACHEMODEL_H
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