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128 lines
2.9 KiB
C++
128 lines
2.9 KiB
C++
#ifndef GRAPHVIEW_H
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#define GRAPHVIEW_H
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#include <QGraphicsView>
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#include <QList>
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#include "data/graph.h"
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#include "palette.h"
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#include "units.h"
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#include "infoitem.h"
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class AxisItem;
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class AxisLabelItem;
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class SliderItem;
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class SliderInfoItem;
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class GraphItem;
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class PathItem;
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class GridItem;
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class QGraphicsSimpleTextItem;
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class GraphicsScene;
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class QGestureEvent;
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class QPinchGesture;
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class GraphView : public QGraphicsView
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{
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Q_OBJECT
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public:
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GraphView(QWidget *parent = 0);
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~GraphView();
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bool isEmpty() const {return _graphs.isEmpty();}
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const QList<KV<QString, QString> > &info() const {return _info->info();}
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void clear();
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void plot(QPainter *painter, const QRectF &target, qreal scale);
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void setPalette(const Palette &palette);
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void setGraphWidth(int width);
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void showGrid(bool show);
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void showSliderInfo(bool show);
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void useOpenGL(bool use);
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void useAntiAliasing(bool use);
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void setSliderPosition(qreal pos);
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void setSliderColor(const QColor &color);
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qreal sliderPosition() const {return _sliderPos;}
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signals:
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void sliderPositionChanged(qreal);
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protected:
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void addGraph(GraphItem *graph);
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void removeGraph(GraphItem *graph);
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void setGraphType(GraphType type);
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void setUnits(Units units);
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void resizeEvent(QResizeEvent *e);
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void mousePressEvent(QMouseEvent *e);
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void wheelEvent(QWheelEvent *e);
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void changeEvent(QEvent *e);
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void paintEvent(QPaintEvent *e);
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bool event(QEvent *event);
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const QString &yLabel() const {return _yLabel;}
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const QString &yUnits() const {return _yUnits;}
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qreal yScale() const {return _yScale;}
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qreal yOffset() const {return _yOffset;}
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void setYLabel(const QString &label);
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void setYUnits(const QString &units);
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void setYScale(qreal scale) {_yScale = scale;}
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void setYOffset(qreal offset) {_yOffset = offset;}
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void setSliderPrecision(int precision) {_precision = precision;}
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void setMinYRange(qreal range) {_minYRange = range;}
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QRectF bounds() const;
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void redraw();
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void addInfo(const QString &key, const QString &value);
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void clearInfo();
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GraphType _graphType;
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Units _units;
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Palette _palette;
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int _width;
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private slots:
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void emitSliderPositionChanged(const QPointF &pos);
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void newSliderPosition(const QPointF &pos);
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private:
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void redraw(const QSizeF &size);
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void setXUnits();
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void updateSliderPosition();
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void updateSliderInfo();
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void removeItem(QGraphicsItem *item);
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void addItem(QGraphicsItem *item);
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bool singleGraph() const;
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bool gestureEvent(QGestureEvent *event);
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void pinchGesture(QPinchGesture *gesture);
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GraphicsScene *_scene;
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AxisItem *_xAxis, *_yAxis;
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AxisLabelItem *_xAxisLabel, *_yAxisLabel;
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SliderItem *_slider;
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SliderInfoItem *_sliderInfo;
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InfoItem *_info;
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GridItem *_grid;
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QGraphicsSimpleTextItem *_message;
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QList<GraphItem*> _graphs;
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QRectF _bounds;
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qreal _sliderPos;
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qreal _xScale, _yScale;
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qreal _yOffset;
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QString _xUnits, _yUnits;
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QString _xLabel, _yLabel;
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int _precision;
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qreal _minYRange;
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qreal _zoom;
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};
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#endif // GRAPHVIEW_H
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