[seiscomp, scanloc] Install, add .gitignore
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include/seiscomp/gui/plot/axis.h
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336
include/seiscomp/gui/plot/axis.h
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/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_GUI_PLOT_AXIS_H
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#define SEISCOMP_GUI_PLOT_AXIS_H
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#include <QObject>
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#include <QPainter>
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#include <QTransform>
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#include <seiscomp/gui/plot/range.h>
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namespace Seiscomp {
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namespace Gui {
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class SC_GUI_API Axis : public QObject {
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// ----------------------------------------------------------------------
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// Public types
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// ----------------------------------------------------------------------
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public:
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enum AxisPosition {
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Left,
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Right,
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Top,
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Bottom
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};
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// ----------------------------------------------------------------------
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// X'truction
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// ----------------------------------------------------------------------
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public:
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//! C'tor
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Axis(QObject *parent=0);
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// ----------------------------------------------------------------------
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// Public interface
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// ----------------------------------------------------------------------
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public:
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void setLabel(const QString &label);
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QString label() const;
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void setTickLength(int length);
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int tickLength() const;
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void setRange(const Range &range);
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void extendRange(const Range &range);
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const Range &range() const;
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void setPosition(AxisPosition pos);
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AxisPosition position() const;
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void setLogScale(bool);
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bool logScale() const;
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void setLogBase(double);
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double logBase() const;
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void setVisible(bool visible);
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bool isVisible() const;
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void setGrid(bool grid);
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bool hasGrid() const;
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/**
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* @brief Set the pen used to draw the axis, the ticks and the
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* labels.
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* @param pen The pen
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*/
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void setPen(const QPen &pen);
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const QPen &pen() const;
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/**
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* @brief Set the pen used to draw the primary grid at ticks. The
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* default is a solid pen with color (192,192,192) and line
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* width 1.
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* @param pen The pen
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*/
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void setGridPen(const QPen &pen);
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const QPen &gridPen() const;
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/**
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* @brief Set the pen used to draw the grid at subticks. The default
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* is a solid pen with color (224,224,224) and line width 1.
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* @param pen The pen
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*/
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void setSubGridPen(const QPen &pen);
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const QPen &subGridPen() const;
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// ----------------------------------------------------------------------
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// Render specific interface
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// ----------------------------------------------------------------------
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public:
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struct Tick {
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Tick() {}
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Tick(double v, int rp, int ap) : value(v), relPos(rp), absPos(ap) {}
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double value;
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int relPos;
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int absPos;
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};
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typedef QVector<Tick> Ticks;
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/**
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* @brief Returns the generated ticks. A call to updateLayout
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* should precede this call to get reasonable values.
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* This call was added with API 13.
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*/
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const Ticks &ticks() const;
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/**
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* @brief Returns the generated subticks. A call to updateLayout
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* should precede this call to get reasonable values.
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* This call was added with API 13.
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*/
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const Ticks &subTicks() const;
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/**
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* @brief Returns the width in pixels of the axis. This is independent
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* of the direction (horizontal or vertical).
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* @return The width or height in pixels
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*/
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int width() const;
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//! Transforms a pixel value into axis space. A call to updateLayout
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//! must precede this call.
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double project(double pixelValue) const;
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//! Transforms an axis value into pixel. A call to updateLayout must
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//! precede this call.
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double unproject(double axisValue) const;
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/**
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* @brief Update the layout and sizes based on the range and settings.
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* This calls generates also the tick marks and the extend of
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* the axis in the flexible direction.
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* With API 13 this method has been declared virtual.
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* @param fm The font metrics of the font used to render the axis.
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* @param rect The target rect which will be changed according to the
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* flexible dimension, e.g. width or height. The width/height
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* of the rect is only changed if it is equal to 0.
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*/
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virtual void updateLayout(const QFontMetrics &fm, QRect &rect);
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//! Convenience function
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//! With API 13 this method has been declared virtual.
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virtual void updateLayout(const QPainter &painter, QRect &rect);
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/**
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* @brief Returns the size hint for the flexible dimension, for vertical
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* axes it is the width and for horizontal axes the height.
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* With API 13 this method has been declared virtual.
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* @param mf The font metrics of the font used to render the axis.
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* @return The value in pixels or -1 if not determinable.
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*/
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virtual int sizeHint(const QFontMetrics &fm) const;
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//! Convenience function
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//! With API 13 this method has been declared virtual.
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virtual int sizeHint(const QPainter &painter) const;
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/**
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* @brief Renders the axis into the given rect.
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* With API 13 this method has been declared virtual.
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* @param painter The painter instance to render with.
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* @param rect The target rectangle. Depending on the position the rect
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* is being updated according to the flexible direction if
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* the rect dimension (either width or height) is not valid.
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* A valid dimension forces the axis to render into the given
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* rect.
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* @param clipText Whether to check for tick label overlaps with the given
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* rect or not. If enabled, then tick labels that intersect
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* with the rect will be pushed into the rect if possible.
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*/
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virtual void draw(QPainter &painter, const QRect &rect,
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bool clipText = false);
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/**
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* @brief Draws the grid lines at the (sub)ticks within a passed plot rect.
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* With API 13 this method has been declared virtual.
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* @param painter The painter instance to render with.
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* @param rect The target rect for the plot.
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* @param ticks Defines whether ticks should be considered or not
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* @param subTicks Defines whether sub-ticks should be considered or not
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*/
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virtual void drawGrid(QPainter &painter, const QRect &rect, bool ticks, bool subTicks);
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// ----------------------------------------------------------------------
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// Members
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// ----------------------------------------------------------------------
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private:
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// Setup
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bool _visible;
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bool _grid;
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QString _label;
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Range _range;
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AxisPosition _position;
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bool _logScale;
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double _logBase;
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int _tickLength;
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int _spacing;
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// Render configuration
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QTransform _transform;
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int _extent;
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int _width;
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double _axisStartValue;
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double _axisEndValue;
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double _axisPixelScale;
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double _tickSpacing;
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double _tickStart;
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QVector<Tick> _ticks;
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QVector<Tick> _subTicks;
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QPen _penAxis;
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QPen _penGridTicks;
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QPen _penGridSubticks;
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};
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inline int Axis::width() const {
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return _width;
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}
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inline void Axis::setVisible(bool visible) {
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_visible = visible;
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}
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inline bool Axis::isVisible() const {
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return _visible;
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}
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inline void Axis::setGrid(bool grid) {
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_grid = grid;
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}
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inline bool Axis::hasGrid() const {
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return _grid;
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}
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inline void Axis::setLabel(const QString &label) {
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_label = label;
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}
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inline QString Axis::label() const {
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return _label;
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}
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inline void Axis::setTickLength(int length) {
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_tickLength = length;
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}
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inline int Axis::tickLength() const {
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return _tickLength;
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}
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inline void Axis::setRange(const Range &range) {
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_range = range;
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}
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inline const Range &Axis::range() const {
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return _range;
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}
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inline void Axis::setPosition(AxisPosition pos) {
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_position = pos;
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}
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inline Axis::AxisPosition Axis::position() const {
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return _position;
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}
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inline void Axis::setLogScale(bool s) {
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_logScale = s;
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}
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inline bool Axis::logScale() const {
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return _logScale;
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}
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inline double Axis::logBase() const {
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return _logBase;
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}
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inline const QPen &Axis::pen() const {
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return _penAxis;
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}
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inline const QPen &Axis::gridPen() const {
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return _penGridTicks;
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}
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inline const QPen &Axis::subGridPen() const {
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return _penGridSubticks;
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}
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inline const Axis::Ticks &Axis::ticks() const {
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return _ticks;
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}
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inline const Axis::Ticks &Axis::subTicks() const {
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return _subTicks;
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}
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}
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}
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#endif
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