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3579e36b7d
The old profile code didn't show the 0m label, because that was cut off. This was lost when redoing the axis code. Reimplement this. The code is very ugly: it recognizes the depth axis by the fact that is the only "inverted" axis. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
96 lines
3.2 KiB
C++
96 lines
3.2 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 <memory>
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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 DiveTextItem;
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class DiveLineItem;
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class DiveCartesianAxis : public QGraphicsLineItem {
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private:
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bool printMode;
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public:
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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, bool inverted, int integralDigits, int fractionalDigits, color_index_t gridColor,
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QColor textColor, 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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double minimum() const;
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double maximum() const;
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std::pair<double, double> screenMinMax() const;
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double valueAt(const QPointF &p) const;
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double posAtValue(double value) const;
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void setPosition(const QRectF &rect);
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double screenPosition(double pos) const; // 0.0 = begin, 1.0 = end of axis, independent of represented values
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double pointInRange(double pos) const; // Point on screen is in range of axis
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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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double horizontalOverhang() const; // space needed for labels of horizontal axes
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void anim(double fraction);
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// The minimum space between two labels on the plot in seconds
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int getMinLabelDistance(const DiveCartesianAxis &timeAxis) const;
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private:
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struct Label {
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double value;
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double opacityStart;
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double opacityEnd; // If 0.0, label will be removed at end of animation
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QPointF labelPosStart;
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QPointF labelPosEnd;
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QLineF lineStart;
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QLineF lineEnd;
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std::unique_ptr<DiveTextItem> label;
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std::unique_ptr<DiveLineItem> line;
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};
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Position position;
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bool inverted; // Top-to-bottom or right-to-left axis.
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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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QColor textColor;
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ProfileScene &scene;
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double posAtValue(double value, double max, double min) const;
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QPointF labelPos(double pos) const;
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QLineF linePos(double pos) const;
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void updateLabel(Label &label, double opacityEnd, double pos) const;
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Label createLabel(double value, double pos, double dataMinOld, double dataMaxOld, int animSpeed, bool noLabel);
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QString textForValue(double value) const;
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std::vector<Label> labels;
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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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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,
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int animSpeed, double dataMinOld, double dataMaxOld);
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};
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#endif // DIVECARTESIANAXIS_H
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