SciFigs/Pen.h

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/***************************************************************************
**
**  This file is part of SciFigs.
**
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Lesser General Public
**  License as published by the Free Software Foundation; either
**  version 2.1 of the License, or (at your option) any later version.
**
**  This file 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 for more details.
**
**  You should have received a copy of the GNU Lesser General Public
**  License along with this library; if not, write to the Free Software
**  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
**
**  See http://www.geopsy.org for more information.
**
**  Created : 2004-12-01
**  Authors :
**    Marc Wathelet
**    Marc Wathelet (ULg, Liège, Belgium)
**    Marc Wathelet (LGIT, Grenoble, France)
**
***************************************************************************/

#ifndef PEN_H
#define PEN_H

#include <QtGui>
#include <QGpCoreTools.h>
#include "SciFigsDLLExport.h"

namespace SciFigs {

class SCIFIGS_EXPORT Pen : public XMLClass
{
public:
  inline Pen();
  inline Pen(Qt::PenStyle style);
  inline Pen(const QColor& col, double width=0, Qt::PenStyle style=Qt::SolidLine);
  inline Pen(const QColor& col, double width, Qt::PenStyle s, Qt::PenCapStyle c,
                 Qt::PenJoinStyle j);
  inline Pen(const Pen& o);
  virtual ~Pen() {}

  virtual const QString& xml_tagName() const {return xmlPenTag;}
  static const QString xmlPenTag;

  inline QPen qpen(double dotpercm) const;
  inline Pen& operator=(const Pen& o);
  inline bool operator==(const Pen& o) const;

  Qt::PenStyle style() const {return _style;}
  void setStyle(Qt::PenStyle s) {_style=s;}
  double width() const {return _width;}
  int screenWidth(double dotpercm) const
  {
    return (int) floor(0.1 * _width * dotpercm + 0.5);
  }
  void setWidth (double w) {_width=w;}
  const QColor& color() const {return _color;}
  void setColor(const QColor & c) {_color=c;}
  Qt::PenCapStyle capStyle() const {return _capStyle;}
  void setCapStyle(Qt::PenCapStyle c) {_capStyle=c;}
  Qt::PenJoinStyle joinStyle() const {return _joinStyle;}
  void setJoinStyle(Qt::PenJoinStyle j) {_joinStyle=j;}

  static Qt::PenStyle styleValue(QString s);
  static QString styleName(Qt::PenStyle s);
  static Qt::PenCapStyle capStyleValue(QString s);
  static QString capStyleName(Qt::PenCapStyle s);
  static Qt::PenJoinStyle joinStyleValue(QString s);
  static QString joinStyleName(Qt::PenJoinStyle s);
  static const Pen null;
protected:
  virtual void xml_writeProperties(XML_WRITEPROPERTIES_ARGS) const;
  virtual bool xml_setProperty(XML_SETPROPERTY_ARGS);
  virtual XMLMember xml_member(XML_MEMBER_ARGS);
private:
  QColor _color;
  Qt::PenStyle _style;
  Qt::PenCapStyle _capStyle;
  Qt::PenJoinStyle _joinStyle;
  // in mm
  double _width;
};

// SCIFIGS_EXPORT QTextStream& operator>>(QTextStream& s,Pen& p);

inline Pen::Pen()
{
  _color=Qt::black;
  _style=Qt::SolidLine;
  _capStyle=Qt::FlatCap;
  _joinStyle=Qt::MiterJoin;
  _width=0.3;
}

inline Pen::Pen(Qt::PenStyle style)
{
  _color=Qt::black;
  _style=style;
  _capStyle=Qt::FlatCap;
  _joinStyle=Qt::MiterJoin;
  _width=0.3;
}

inline Pen::Pen(const QColor& col, double width, Qt::PenStyle style)
{
  _color=col;
  _style=style;
  _capStyle=Qt::FlatCap;
  _joinStyle=Qt::MiterJoin;
  _width=width;
}

inline Pen::Pen(const QColor& col, double width, Qt::PenStyle s, Qt::PenCapStyle c,
                Qt::PenJoinStyle j)
{
  _color=col;
  _style=s;
  _capStyle=c;
  _joinStyle=j;
  _width=width;
}

inline Pen::Pen(const Pen& o) : XMLClass()

{
  _color=o._color;
  _style=o._style;
  _capStyle=o._capStyle;
  _joinStyle=o._joinStyle;
  _width=o._width;
}

inline Pen& Pen::operator=(const Pen& o)
{
  _color=o._color;
  _style=o._style;
  _capStyle=o._capStyle;
  _joinStyle=o._joinStyle;
  _width=o._width;
  return *this;
}

inline bool Pen::operator==(const Pen& o) const
{
  TRACE;
  return _color==o._color
      && _style==o._style
      && _capStyle==o._capStyle
      && _joinStyle==o._joinStyle
      && _width==o._width;
}

inline QPen Pen::qpen(double dotpercm) const
{
  TRACE;
  return QPen(QBrush( _color), round(0.1 * _width * dotpercm), _style, _capStyle,
               _joinStyle);
}

} // namespace SciFigs

#endif // PEN_H