7bc90b6dfe
The visibility of axis text / lines is never changed, so set in axis constructor. Moreover, instead of rendering the lines/text and then setting them invisible, do not render them if invisible. The whole thing appears superfluous, since the proper way to not show lines/text is to just not call updateTicks on the axis. But in the future we might want to have axes with text but no lines, so keep for now. Since this means breaking out the text / line rendering into their own function, we might rename some variables to make them (at least somewhat) more clear. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
113 lines
3.1 KiB
C++
113 lines
3.1 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#ifndef DIVECARTESIANAXIS_H
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#define DIVECARTESIANAXIS_H
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#include <QObject>
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#include <QGraphicsLineItem>
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#include <QPen>
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#include "core/color.h"
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#include "core/units.h"
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class ProfileScene;
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class QPropertyAnimation;
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class DiveTextItem;
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class DiveLineItem;
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class DivePlotDataModel;
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class DiveCartesianAxis : public QObject, public QGraphicsLineItem {
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Q_OBJECT
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Q_PROPERTY(QLineF line WRITE setLine READ line)
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Q_PROPERTY(QPointF pos WRITE setPos READ pos)
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Q_PROPERTY(qreal x WRITE setX READ x)
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Q_PROPERTY(qreal y WRITE setY READ y)
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private:
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bool printMode;
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public:
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enum Orientation {
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TopToBottom,
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BottomToTop,
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LeftToRight,
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RightToLeft
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};
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enum class Position {
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Left, Right, Bottom
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};
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DiveCartesianAxis(Position position, int integralDigits, int fractionalDigits, color_index_t gridColor,
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bool textVisible, bool linesVisible,
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double dpr, double labelScale, bool printMode, bool isGrayscale, ProfileScene &scene);
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~DiveCartesianAxis();
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void setBounds(double min, double max);
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void setTransform(double a, double b = 0.0);
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void setOrientation(Orientation orientation);
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double minimum() const;
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double maximum() const;
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std::pair<double, double> screenMinMax() const;
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qreal valueAt(const QPointF &p) const;
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qreal posAtValue(qreal value) const;
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void setPosition(const QRectF &rect);
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void setTextVisible(bool arg1);
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void setLinesVisible(bool arg1);
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void updateTicks(int animSpeed);
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double width() const; // only for vertical axes
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double height() const; // only for horizontal axes
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private:
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Position position;
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int fractionalDigits;
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QRectF rect; // Rectangle to fill with grid lines
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QPen gridPen;
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color_index_t gridColor;
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ProfileScene &scene;
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QString textForValue(double value) const;
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virtual QColor colorForValue(double value) const;
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Orientation orientation;
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QList<DiveTextItem *> labels;
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QList<DiveLineItem *> lines;
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double dataMin, dataMax;
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double min, max;
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bool textVisibility;
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bool lineVisibility;
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double labelScale;
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bool changed;
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double dpr;
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double labelWidth, labelHeight; // maximum expected sizes of label width and height
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// To format the labels and choose the label positions, the
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// axis has to be aware of the displayed values. Thankfully,
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// the conversion between internal data (eg. mm) and displayed
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// data (e.g. ft) can be represented by an affine map ax+b.
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struct Transform {
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double a, b;
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double to(double x) const;
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double from(double y) const;
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} transform;
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void updateLabels(int numTicks, double firstPosScreen, double firstValue, double stepScreen, double stepValue, int animSpeed);
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void updateLines(int numTicks, double firstPosScreen, double stepScreen, int animSpeed);
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};
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class DepthAxis : public DiveCartesianAxis {
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Q_OBJECT
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public:
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using DiveCartesianAxis::DiveCartesianAxis;
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private:
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QColor colorForValue(double value) const override;
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};
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class TimeAxis : public DiveCartesianAxis {
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Q_OBJECT
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public:
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using DiveCartesianAxis::DiveCartesianAxis;
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private:
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QColor colorForValue(double value) const override;
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};
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class TemperatureAxis : public DiveCartesianAxis {
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Q_OBJECT
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public:
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using DiveCartesianAxis::DiveCartesianAxis;
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};
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#endif // DIVECARTESIANAXIS_H
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