mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-11-16 02:25:50 +08:00
168 lines
7.6 KiB
C++
168 lines
7.6 KiB
C++
/*
|
|
Copyright (c) 2008-2020 Jan W. Krieger (<jan@jkrieger.de>)
|
|
|
|
|
|
|
|
This software is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License (LGPL) as published by
|
|
the Free Software Foundation, either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License (LGPL) for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License (LGPL)
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <QString>
|
|
#include <QPainter>
|
|
#include <QPair>
|
|
#include "jkqtplotter/jkqtptools.h"
|
|
#include "jkqtplotter/jkqtplotter_imexport.h"
|
|
#include "jkqtplotter/jkqtpimagetools.h"
|
|
#include "jkqtplotter/jkqtpgraphsbase.h"
|
|
#include "jkqtplotter/jkqtpgraphsbaseerrors.h"
|
|
#include "jkqtplotter/jkqtpgraphsbasestylingmixins.h"
|
|
#ifndef jkqtpgraphsbarchartbase_H
|
|
#define jkqtpgraphsbarchartbase_H
|
|
|
|
|
|
|
|
/** \brief This is a base-class for all bar graphs with vertical or horizontal orientation (the orientation is implemented in dervied classes!)
|
|
* \ingroup jkqtplotter_barssticks
|
|
*
|
|
* This class plots a bargraph. This image explains the parameters:
|
|
*
|
|
* \image html bargraph_basics.png
|
|
*
|
|
* By default the sift parameter is, so the bar is centered at the x-value. The width is 0.9,
|
|
* so adjacent bars are plotted with a small distance between them. It is possible to use these two parameters
|
|
* to plot multiple bars for every x-value, by having on JKQTPSpecialLineHorizontalGraph object per
|
|
* set of bars that belong together. For example for three bars per x-value one would set:
|
|
* \verbatim
|
|
* width=0.3
|
|
* shift=-0.3 / 0 / +0.3
|
|
* \endverbatim
|
|
* This results in a bargraph, as shown here:
|
|
*
|
|
* \image html plot_bargraphverplot.png
|
|
*
|
|
*
|
|
*
|
|
* \see JKQTPBarHorizontalGraph, JKQTPBarVerticalGraph
|
|
*/
|
|
class JKQTPLOTTER_LIB_EXPORT JKQTPBarGraphBase: public JKQTPXYBaselineGraph, public JKQTPGraphLineStyleMixin, public JKQTPGraphFillStyleMixin {
|
|
Q_OBJECT
|
|
public:
|
|
/** \brief class constructor */
|
|
JKQTPBarGraphBase(JKQTBasePlotter* parent=nullptr);
|
|
/** \brief class constructor */
|
|
JKQTPBarGraphBase(JKQTPlotter* parent);
|
|
|
|
/** \brief plots a key marker inside the specified rectangle \a rect */
|
|
virtual void drawKeyMarker(JKQTPEnhancedPainter& painter, QRectF& rect) override;
|
|
/** \brief returns the color to be used for the key label */
|
|
virtual QColor getKeyLabelColor() const override;
|
|
|
|
|
|
|
|
/*! \copydoc shift */
|
|
double getShift() const;
|
|
/*! \copydoc width */
|
|
double getWidth() const;
|
|
|
|
/** \brief sets the fill color and the color together, where fillColor is set to \a fill and the line-color is set to \c fill.darker(colorDarker)
|
|
* \see setColor()
|
|
*/
|
|
void setFillColor_and_darkenedColor(QColor fill, int colorDarker=200);
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the position of the bars (depending on whether the barchart is vertical or horizontal \see getBarHeightColumn(), xColumn, yColumn */
|
|
virtual int getBarPositionColumn() const =0;
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the height of the bars (depending on whether the barchart is vertical or horizontal \see getBarPositionColumn(), xColumn, yColumn */
|
|
virtual int getBarHeightColumn() const =0;
|
|
public slots:
|
|
|
|
/** \brief finds all bar charts of the same orientation and determines width and shift, so they stand side by side
|
|
*
|
|
* \param maxWidth the maximum (relative) width, that all bars will span of the (doubled) inter-bar distance
|
|
* \param shrinkFactor factor, by which the bar are shrinked compared to the available space
|
|
*
|
|
* \note This function will scale ALL graphs of the parent plot, which were derived from JKQTPBarHorizontalGraph, that match in orientation (as returned by isHorizontal() ).
|
|
*/
|
|
virtual void autoscaleBarWidthAndShift(double maxWidth=0.9, double shrinkFactor=0.8);
|
|
|
|
/** \brief equivalent to \c autoscaleBarWidthAndShift(groupWidth,1);
|
|
*/
|
|
void autoscaleBarWidthAndShiftSeparatedGroups(double groupWidth=0.75);
|
|
/*! \copydoc shift */
|
|
void setShift(double __value);
|
|
/*! \copydoc width */
|
|
void setWidth(double __value);
|
|
|
|
|
|
/** \brief set outline and fill color at the same time
|
|
* \see setFillColor_and_darkenedColor()
|
|
*/
|
|
virtual void setColor(QColor c);
|
|
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the position of the bars (depending on whether the barchart is vertical or horizontal \see getBarHeightColumn(), xColumn, yColumn */
|
|
virtual void setBarPositionColumn(int column) =0;
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the position of the bars (depending on whether the barchart is vertical or horizontal \see getBarHeightColumn(), xColumn, yColumn */
|
|
virtual void setBarPositionColumn(size_t column) =0;
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the height of the bars (depending on whether the barchart is vertical or horizontal \see getBarPositionColumn(), xColumn, yColumn */
|
|
virtual void setBarHeightColumn(int column) =0;
|
|
|
|
/** \brief returns xColumn or yColumn, whichever is used for the height of the bars (depending on whether the barchart is vertical or horizontal \see getBarPositionColumn(), xColumn, yColumn */
|
|
virtual void setBarHeightColumn(size_t column) =0;
|
|
protected:
|
|
/** \brief the width of the bargraphs, relative to the distance between the current and the next x-value
|
|
*
|
|
* See the following graphic to understand this concept:
|
|
* \image html bargraph_basics.png
|
|
*/
|
|
double width;
|
|
/** \brief the shift of the bargraphs, relative to the distance between the current and the next x-value
|
|
*
|
|
* See the following graphic to understand this concept:
|
|
* \image html bargraph_basics.png
|
|
*/
|
|
double shift;
|
|
|
|
|
|
/** \brief this function is used by autoscaleBarWidthAndShift() to determine whether a given graph shall be taken into account when autoscaling.
|
|
* Typically this returns \c true for all JKQTPBarGraphBase-derved objects with the same orientation (horizontal or vertical) */
|
|
virtual bool considerForAutoscaling( JKQTPBarGraphBase* other) const=0;
|
|
|
|
/** \brief used to generate stacked plots: returns the upper boundary of the parent plot in a stack, for the index-th datapoint */
|
|
virtual double getParentStackedMax(int index) const ;
|
|
|
|
/** \brief returns \c true, if a stack parent is set (if available) */
|
|
virtual bool hasStackParent() const ;
|
|
|
|
/** \brief get the maximum and minimum value in the box-elongation (i.e. value) direction of the graph
|
|
*
|
|
* The result is given in the two parameters which are call-by-reference parameters!
|
|
*/
|
|
bool getValuesMinMax(double& mmin, double& mmax, double& smallestGreaterZero) ;
|
|
/** \brief get the maximum and minimum value of the box positions of the graph
|
|
*
|
|
* The result is given in the two parameters which are call-by-reference parameters!
|
|
*/
|
|
bool getPositionsMinMax(double& mmin, double& mmax, double& smallestGreaterZero) ;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif // jkqtpgraphsbarchartbase_H
|