gaugeitem.h

/**************************************************************************
*   Copyright (C) 2010 by Michael Carpenter (malcom2073)                  *
*   malcom2073@gmail.com                                                  *
*                                                                         *
*   This file is a part of OBDToolbox                                     *
*                                                                         *
*   OBDToolbox is free software: you can redistribute it and/or modify    *
*   it under the terms of the GNU General Public License as published by  *
*   the Free Software Foundation, either version 3 of the License, or     *
*   (at your option) any later version.                                   *
*                                                                         *
*   OBDToolbox 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 General Public License for more details.                          *
*                                                                         *
*   You should have received a copy of the GNU General Public License     *
*   along with OBDToolbox.  If not, see <http://www.gnu.org/licenses/>.   *
***************************************************************************/


#ifndef GAUGEITEM_H
#define GAUGEITEM_H
#include <QPen>
#include <QDeclarativeItem>
//#include <QPaintEvent>
#include <QPainter>
//#include <QImage>
#include <QTimer>
class GaugeItem : public QDeclarativeItem
{
	Q_OBJECT
public:
	Q_PROPERTY(double m_value READ getValue WRITE setRaw)
	Q_PROPERTY(double startAngle READ getStartAngle WRITE setStartAngle)
	Q_PROPERTY(double endAngle READ getEndAngle WRITE setEndAngle)
	Q_PROPERTY(double minimum READ getMinimum WRITE setMinimum)
	Q_PROPERTY(double maximum READ getMaximum WRITE setMaximum)
	Q_PROPERTY(double numLabels READ getNumLabels WRITE setNumLabels)
	Q_PROPERTY(int m_style READ getStyle WRITE setStyle)
	Q_PROPERTY(QString text READ getText WRITE setText)

	GaugeItem();
	double getValue() { return m_value; }
	void setValue(double value);
	void setRaw(double value);
	void passEvent(QStringList evt);
	void setMinimum(double min) { _minValue = min; }
	double getMinimum() { return _minValue;}
	double getMaximum() { return _maxValue;}
	double getStartAngle() { return _scaleStartAngle;}
	double getEndAngle() { return _scaleEndAngle;}
	double smoothing() { return _smoothValue;}
	double getNumLabels() { return _numLabels;}
	int getStyle() { return m_style; }
	void setStyle(int style) { m_style = style; m_redrawBackground = true; }
	int fade() { return fadeAmount;}
	void setFadingOn(bool fade);
	void setMaximum(double max) { _maxValue = max; }
	void setStartAngle(double ang) { _scaleStartAngle = ang; m_redrawBackground = true;}
	void setEndAngle(double ang) { _scaleEndAngle = ang; m_redrawBackground = true; }
	void setSmoothing(double smooth) { _smoothValue = smooth; }
	void setNumLabels(int num) { _numLabels = num; m_redrawBackground = true;}
	void setColor(QColor outlinecolor, QColor centercolor, QColor topreflectioncolor, QColor bottomreflectioncolor);
	void setColor1(QColor needlecolor, QColor needleoutlinecolor, QColor normaltickcolor, QColor bigtickcolor, QColor warningtickcolor, QColor dangertickcolor);
	void setColor2(QColor fontcolor, QColor warningfontcolor, QColor dangerfontcolor,QFont font);
	void startDemo(int max);
	void setFade(int fade);
	void show();
	//void setFake(bool fake) { m_fake = fake;repaint(); }
	void setGaugeStyle(int style);
	QString getText() { return m_text; }
	void setText(QString text) { m_text = text; update(); }
private:
	QString m_text;
	bool m_redrawBackground;
	double m_value;
	void geometryChanged (const QRectF &newgeometry,const QRectF &oldgeometry);
	int m_style;
	bool m_fake;
	bool m_fadeEnabled;
	int demoMax;
	int fadeAmount;
	//void paintEvent(QPaintEvent *evt);
	//void resizeEvent (QResizeEvent *evt);
	void paint(QPainter *painter, const QStyleOptionGraphicsItem *style , QWidget * w);
	bool resizeDraw;
	void drawBackground(QPainter *tmpPainter);
	QImage *_bgImage;
	QImage *_fadedBgImage;
	QTimer *demoTimer;
	QTimer *gaugeTimer;
	QTimer *fadeTimer;
	double _scaleEndAngle;
	double _scaleStartAngle;
	double _maxValue;
	double _minValue;
	double _value;
	double _targetValue;
	double _danger;
	double _warning;
	double _smoothValue;
	bool _reverseOrder;
	int _numLabels;
	QPen outlinePen;
	QPen needleCenterPen;
	QPen needleCenterOutlinePen;
	QPen needlePen;
	QPen needleOutlinePen;
	QPen normalTickPen;
	QPen normalBigTickPen;
	QPen normalFontPen;
	QPen dangerFontPen;
	QPen warningFontPen;
	QPen dangerTickPen;
	QPen dangerBigTickPen;
	QPen warningTickPen;
	QPen warningBigTickPen;
	QFont labelFont;
	QFont labelSmallFont;
	int fadeCount;
private slots:
	void timerTick();
	void gaugeTimerTick();
	void fadeTimerTick();
};
#endif //GAUGEITEM_H