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#pragma once
#include "graphview.h"
/**
* The heatmap iterator will only return data when there is something to draw,
* this allows much faster access to the data in the case where the view is
* zoomed out to the point of where there is multiple calls in one pixel,
* it automagically calculates the heat for that pixel.
*/
class HeatmapRowIterator {
public:
virtual ~HeatmapRowIterator(){}
/* Go to the next visible heat map */
virtual bool next() = 0;
/* Is the current value GPU or CPU heat */
virtual bool isGpu() const = 0;
/* Current step (normally x coordinate) */
virtual int step() const = 0;
/* Current width (in steps) */
virtual int width() const = 0;
/* Current heat */
virtual float heat() const = 0;
/* Heat value for selected calls */
virtual float selectedHeat() const = 0;
/* Label only used when there is a single call in this heat */
virtual QString label() const = 0;
};
/**
* Data provider for the whole heatmap
*/
class HeatmapDataProvider {
public:
virtual ~HeatmapDataProvider(){}
/* The start and end values (time on x-axis) for the heatmap */
virtual qint64 start() const = 0;
virtual qint64 end() const = 0;
/*
* Header rows (fixed at top of heatmap view)
*/
/* Header row count */
virtual unsigned headerRows() const = 0;
/* Label to be used in the vertical axis */
virtual QString headerLabel(unsigned row) const = 0;
/* Get identifier (program no) for row */
virtual qint64 headerRowAt(unsigned row) const = 0;
/* Get item at row and time */
virtual qint64 headerItemAt(unsigned row, qint64 time) const = 0;
/* Get iterator for a row between start and end time for steps */
virtual HeatmapRowIterator* headerRowIterator(int row, qint64 start, qint64 end, int steps) const = 0;
/*
* Data rows (scrollable in heatmap view)
*/
/* Data row count */
virtual unsigned dataRows() const = 0;
/* Label to be used in the vertical axis */
virtual QString dataLabel(unsigned row) const = 0;
/* Get identifier (program no) for row */
virtual qint64 dataRowAt(unsigned row) const = 0;
/* Get item at row and time */
virtual qint64 dataItemAt(unsigned row, qint64 time) const = 0;
/* Get iterator for a row between start and end time for steps */
virtual HeatmapRowIterator* dataRowIterator(int row, qint64 start, qint64 end, int steps) const = 0;
/* Handle double click on item */
virtual void itemDoubleClicked(qint64 index) const = 0;
/* Get mouse over tooltip for item */
virtual QString itemTooltip(qint64 index) const = 0;
/* Set the selection */
virtual void setSelectionState(SelectionState* state) = 0;
};
/**
* A not very generic heatmap for row based data
*/
class HeatmapView : public GraphView {
public:
HeatmapView(QWidget* parent);
void setDataProvider(HeatmapDataProvider* data);
void setSelectionState(SelectionState* state);
virtual void mouseMoveEvent(QMouseEvent *e);
virtual void mouseDoubleClickEvent(QMouseEvent *e);
virtual void paintEvent(QPaintEvent *e);
virtual void paintRow(QPainter& painter, HeatmapRowIterator* itr);
protected:
qint64 itemAtPosition(QPoint pos);
protected:
int m_rowHeight;
HeatmapDataProvider* m_data;
};
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