qwt_figure.h

#ifndef QWT_FIGURE_H
#define QWT_FIGURE_H
// stl
#include <memory>
 
// Qt
#include <QFrame>
class QResizeEvent;
class QPaintEvent;
 
// qwt
#include "qwt_global.h"
#include "qwt_axis.h"
class QwtPlot;
 
class QWT_EXPORT QwtFigure : public QFrame
{
    Q_OBJECT
    QWT_DECLARE_PRIVATE(QwtFigure)
public:
    QwtFigure(QWidget* parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
    ~QwtFigure() override;
 
    // Add a widget with normalized coordinates
    void addWidget(QWidget* widget, qreal left, qreal top, qreal width, qreal height);
    void addWidget(QWidget* widget,
                   int rowCnt,
                   int colCnt,
                   int row,
                   int col,
                   int rowSpan  = 1,
                   int colSpan  = 1,
                   qreal wspace = 0.0,
                   qreal hspace = 0.0);
 
    // Add a plot with normalized coordinates
    void addAxes(QwtPlot* plot, const QRectF& rect);
 
    // Add a plot with normalized coordinates using separate parameters
    void addAxes(QwtPlot* plot, qreal left, qreal top, qreal width, qreal height);
 
    // Add a plot by grid layout
    void addGridAxes(QwtPlot* plot,
                     int rowCnt,
                     int colCnt,
                     int row,
                     int col,
                     int rowSpan  = 1,
                     int colSpan  = 1,
                     qreal wspace = 0.0,
                     qreal hspace = 0.0);
 
    // Change the normalized position of an added widget
    void setWidgetNormPos(QWidget* widget, const QRectF& rect);
 
    // Get all axes (plots) in the figure (not including parasite axes)
    QList< QwtPlot* > allAxes(bool byZOrder = false) const;
 
    // Check if the figure has any axes
    bool hasAxes() const;
 
    // Check if the figure has a specific plot
    bool hasAxes(QwtPlot* plot) const;
 
    // Remove a specific axes (plot) from the figure
    void removeAxes(QwtPlot* plot);
 
    // Take a specific axes (plot) from the figure without deleting it
    bool takeAxes(QwtPlot* plot);
 
    // Clear all axes from the figure
    void clear();
 
    // Get the size of the figure in inches
    QSize getSizeInches() const;
 
    // Set the size of the figure in inches
    void setSizeInches(float width, float height);
    void setSizeInches(const QSizeF& size);
 
    // Set the face color of the figure
    void setFaceColor(const QColor& color);
    QColor faceColor() const;
 
    // Set the face brush of the figure
    void setFaceBrush(const QBrush& brush);
    QBrush faceBrush() const;
 
    // Set the edge color of the figure
    void setEdgeColor(const QColor& color);
    QColor edgeColor() const;
 
    // Set the edge line width of the figure
    void setEdgeLineWidth(int width);
    int edgeLineWidth() const;
 
    // Create parasite axes for a host plot
    QwtPlot* createParasiteAxes(QwtPlot* hostPlot, QwtAxis::Position enableAxis);
 
    // Get all parasite axes for a host plot
    QList< QwtPlot* > getParasiteAxes(QwtPlot* hostPlot) const;
 
    // Save the figure to a QPixmap with specified DPI
    QPixmap saveFig(int dpi = -1) const;
 
    // Save the figure to a QPixmap with specified size in inches
    QPixmap saveFig(QSizeF& inchesSize) const;
 
    // Save the figure to a file with specified DPI
    bool saveFig(const QString& filename, int dpi = -1) const;
 
    // Set the current axes (plot)
    void setCurrentAxes(QwtPlot* plot);
    void sca(QwtPlot* plot);
 
    // Get the current axes (plot)
    QwtPlot* currentAxes() const;
    QwtPlot* gca() const;
 
    // Get the normalized rectangle for an axes
    QRectF axesNormRect(QwtPlot* plot) const;
 
    // Get the normalized rectangle for a child widget
    QRectF widgetNormRect(QWidget* w) const;
 
    // Get the plot at a given position (returns host plot if parasite exists)
    QwtPlot* plotUnderPos(const QPoint& pos) const;
 
    // Calculate normalized coordinates from actual geometry
    QRectF calcNormRect(const QRect& geoRect) const;
 
    // Calculate actual rectangle from normalized coordinates
    QRect calcActualRect(const QRectF& normRect);
 
    // Update all plots
    void replotAll();
 
    // Add axis alignment configuration
    void addAxisAlignment(const QList< QwtPlot* >& plots, int axisId);
 
    // Remove specified axis alignment configuration
    bool removeAxisAlignment(const QList< QwtPlot* >& plots, int axisId);
 
    // Clear all axis alignment configurations
    void clearAxisAlignment();
 
    // Apply all axis alignment configurations
    void applyAllAxisAlignments(bool replot = true);
 
    // Apply all alignment configurations for a specific axis ID
    void applyAlignmentsForAxis(int axisId);
 
    // Get the count of axis alignment configurations
    int axisAligmentCount() const;
 
    // Get axis alignment information at specified index
    QPair< QList< QwtPlot* >, int > axisAligmentInfo(int index) const;
 
public:
    // Align axes of multiple QwtPlot objects
    static void alignAxes(QList< QwtPlot* > plots, int axisId, bool update = true);
Q_SIGNALS:
    void axesAdded(QwtPlot* newAxes);
 
    void axesRemoved(QwtPlot* removedAxes);
 
    void figureCleared();
 
    void currentAxesChanged(QwtPlot* current);
 
protected:
    void paintEvent(QPaintEvent* event) override;
    void resizeEvent(QResizeEvent* event) override;
};
 
#endif  // QWT_FIGURE_H