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110 lines
2.9 KiB
110 lines
2.9 KiB
15 years ago
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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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14 years ago
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_SCALE_DRAW_H
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#define QWT_SCALE_DRAW_H
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#include <qpoint.h>
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#include "qwt_global.h"
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#include "qwt_abstract_scale_draw.h"
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/*!
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\brief A class for drawing scales
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QwtScaleDraw can be used to draw linear or logarithmic scales.
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A scale has a position, an alignment and a length, which can be specified .
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The labels can be rotated and aligned
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to the ticks using setLabelRotation() and setLabelAlignment().
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After a scale division has been specified as a QwtScaleDiv object
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using QwtAbstractScaleDraw::setScaleDiv(const QwtScaleDiv &s),
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the scale can be drawn with the QwtAbstractScaleDraw::draw() member.
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*/
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class QWT_EXPORT QwtScaleDraw: public QwtAbstractScaleDraw
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{
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public:
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/*!
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Alignment of the scale draw
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\sa setAlignment(), alignment()
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*/
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enum Alignment { BottomScale, TopScale, LeftScale, RightScale };
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QwtScaleDraw();
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QwtScaleDraw(const QwtScaleDraw &);
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virtual ~QwtScaleDraw();
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QwtScaleDraw &operator=(const QwtScaleDraw &other);
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void getBorderDistHint(const QFont &, int &start, int &end) const;
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int minLabelDist(const QFont &) const;
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int minLength(const QPen &, const QFont &) const;
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virtual int extent(const QPen &, const QFont &) const;
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void move(int x, int y);
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void move(const QPoint &);
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void setLength(int length);
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Alignment alignment() const;
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void setAlignment(Alignment);
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Qt::Orientation orientation() const;
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QPoint pos() const;
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int length() const;
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#if QT_VERSION < 0x040000
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void setLabelAlignment(int);
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int labelAlignment() const;
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#else
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void setLabelAlignment(Qt::Alignment);
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Qt::Alignment labelAlignment() const;
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#endif
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void setLabelRotation(double rotation);
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double labelRotation() const;
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int maxLabelHeight(const QFont &) const;
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int maxLabelWidth(const QFont &) const;
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QPoint labelPosition(double val) const;
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QRect labelRect(const QFont &, double val) const;
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QSize labelSize(const QFont &, double val) const;
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QRect boundingLabelRect(const QFont &, double val) const;
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protected:
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#if QT_VERSION < 0x040000
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QWMatrix labelMatrix(const QPoint &, const QSize &) const;
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#else
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QMatrix labelMatrix(const QPoint &, const QSize &) const;
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#endif
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virtual void drawTick(QPainter *p, double val, int len) const;
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virtual void drawBackbone(QPainter *p) const;
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virtual void drawLabel(QPainter *p, double val) const;
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private:
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void updateMap();
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class PrivateData;
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PrivateData *d_data;
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};
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inline void QwtScaleDraw::move(int x, int y)
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{
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move(QPoint(x, y));
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}
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#endif
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