qwt_scale_corner.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
 *
 * Modified by ChenZongYan in 2024 <czy.t@163.com>
 *****************************************************************************/
 
#ifndef QWT_SCALE_CORNER_H
#define QWT_SCALE_CORNER_H
 
#include "qwt_global.h"
#include "qwt_axis_id.h"
#include "qwt_scale_draw.h"
 
class QwtPlot;
 
namespace QwtScaleCorner
{
struct QWT_EXPORT Targets
{
    qreal start = qQNaN();
    qreal end = qQNaN();
 
    int startWidth = 1;
    int endWidth = 1;
 
    bool isValid() const
    {
        return !qIsNaN(start) || !qIsNaN(end);
    }
};
 
QWT_EXPORT void cornerAxes(QwtAxisId axisId, QwtAxisId& startAxis, QwtAxisId& endAxis);
 
QWT_EXPORT qreal nearEdgeShift(QwtAxisId axisId);
 
QWT_EXPORT QwtScaleDraw::CornerMiter miterFlags(const QwtPlot* plot, QwtAxisId axisId);
 
QWT_EXPORT Targets widgetTargetPositions(const QwtPlot* plot, QwtAxisId axisId);
 
QWT_EXPORT Targets layoutTargetPositions(const QwtPlot* plot, QwtAxisId axisId);
 
QWT_EXPORT void widgetExtensions(const QwtPlot* plot, QwtAxisId axisId,
                                 qreal devicePixelRatio, int& startExtension, int& endExtension);
}
 
#endif