qwt_plot_styling.h

/******************************************************************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/
 
#ifndef QWT_PLOT_STYLING_H
#define QWT_PLOT_STYLING_H
 
#include "qwt_global.h"
#include "qwt_symbol.h"
 
#include <qbrush.h>
#include <qcolor.h>
#include <qpen.h>
#include <qsize.h>
 
class QwtPlot;
class QwtPlotItem;
class QwtPlotCurve;
 
class QWT_EXPORT QwtPlotStyling
{
public:
    // ---- Color ----
 
    // Get the representative color of a plot item
    static QColor color(const QwtPlotItem* item, const QColor& defaultColor = QColor());
 
    // Set the color of a plot item (dispatches to pen or brush)
    static bool setColor(QwtPlotItem* item, const QColor& color);
 
    // ---- Pen ----
 
    // Get the pen of a plot item
    static QPen pen(const QwtPlotItem* item);
 
    // Set the pen of a plot item
    static bool setPen(QwtPlotItem* item, const QPen& pen);
 
    // ---- Brush ----
 
    // Get the brush of a plot item
    static QBrush brush(const QwtPlotItem* item);
 
    // Set the brush of a plot item
    static bool setBrush(QwtPlotItem* item, const QBrush& brush);
 
    // ---- Curve symbol ----
 
    // Set a symbol on a curve with style and size
    static void setSymbol(QwtPlotCurve* curve, QwtSymbol::Style style, const QSize& size = QSize(8, 8));
 
    // Set a symbol on a curve with style, color and size
    static void setSymbol(QwtPlotCurve* curve, QwtSymbol::Style style, const QColor& color, const QSize& size = QSize(8, 8));
 
    // ---- Curve line style ----
 
    // Set curve line pen style and width
    static void setLineStyle(QwtPlotCurve* curve, Qt::PenStyle style, qreal width = 0.0);
 
    // ---- Recommended values ----
 
    // Recommend a pen width based on the number of data points
    static qreal recommendPenWidth(int pointCount);
 
    // ---- Force replot ----
 
    // Force an immediate replot even when autoReplot is disabled
    static void forceReplot(QwtPlot* plot);
};
 
#endif  // QWT_PLOT_STYLING_H