HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/axisitem.cpp

Refactored themes; now enabled for line, scatter and pies...

Refactored themes; now enabled for line, scatter and pies Draft themes implemented for most of the series types. The themes are still missing most of the features, only the line color and line width can be defined.

Tero Ahola - - Load All Authors

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             axisitem.cpp
        
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        Michal Klocek
    
Add zoom support...

              r67
            
      #include "axisitem_p.h"

      #include <QPainter>

      #include <QDebug>

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
      #define LABEL_PADDING 5

        Michal Klocek
    
Add zoom support...

              r67
            
      QTCOMMERCIALCHART_BEGIN_NAMESPACE

        Tero Ahola
    
Refactored themes; now enabled for line, scatter and pies...

              r103
            
      AxisItem::AxisItem(AxisType type,QGraphicsItem* parent) :

          QGraphicsItem(parent),

          m_ticks(4),

          m_type(type)

        Michal Klocek
    
Add zoom support...

              r67
            
      {

      }

      AxisItem::~AxisItem()

      {

      }

      void AxisItem::setLength(int length)

      {

          QPainterPath path;

          path.moveTo(QPointF(0,0));

          path.lineTo(length,0);

         // path.lineTo(length-4,0);

         // path.lineTo(length,3);

         // path.lineTo(length-4,6);

         // path.lineTo(length-4,4);

         // path.lineTo(0,4);

         // path.lineTo(0,2);

          m_path=path;

          update();

      }

      QRectF AxisItem::boundingRect() const

      {

          return m_rect;

      }

      void AxisItem::setPlotDomain(const PlotDomain& plotDomain)

      {

          m_plotDomain = plotDomain;

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
          createItems();

        Michal Klocek
    
Add zoom support...

              r67
            
      }

        Tero Ahola
    
Refactored themes; now enabled for line, scatter and pies...

              r103
            
      void AxisItem::setPos(const QPointF & pos)

      {

          QGraphicsItem::setPos(pos);

      }

      void AxisItem::resize(const QSize &size)

      {

          m_rect = QRectF(QPoint(0,0),size);

          createItems();

      }

      void AxisItem::setTheme(ChartTheme *theme)

      {

          if (theme) {

              // TODO: add axis related properties to the theme class and use them here

          }

      }

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
      /*

        Michal Klocek
    
Add zoom support...

              r67
            
      void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget)

      {

          if (!m_rect.isValid())

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
          return;

        Michal Klocek
    
Add zoom support...

              r67
            
          if(m_type==X_AXIS) {

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
              const qreal deltaX = m_rect.width() / m_ticks;

              for (int i = 0; i <= m_ticks; ++i) {

                  int x = i * deltaX + m_rect.left();

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                  if(i==0) x--;

                  if(i==m_ticks) x++;

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                  qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()

                      / m_ticks);

                  painter->drawLine(x, m_rect.top()-1, x, m_rect.bottom()+1);

                 // painter->drawLine(x, m_rect.bottom()-1, x, m_rect.bottom()-1 + 5);

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                  painter->drawText(x - 50, m_rect.bottom() + 5, 100, 20,Qt::AlignHCenter | Qt::AlignTop, QString::number(label));

              }

        Michal Klocek
    
Add zoom support...

              r67
            
          }

          if(m_type==Y_AXIS) {

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
              const qreal deltaY = (m_rect.height()) / m_ticks;

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
              for (int j = 0; j <= m_ticks; ++j) {

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                  int y = j * -deltaY + m_rect.bottom();

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                  if(j==0) y++;

                  if(j==m_ticks) y--;

                  qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()

                      / m_ticks);

                  painter->drawLine(m_rect.left()-1, y, m_rect.right()+1, y);

                  //painter->drawLine(m_rect.left() - 5, y, m_rect.left(), y);

                  //TODO : margin = 50 ;

                  painter->drawText(m_rect.left() - 50, y - 10, 50 - 5, 20,

                      Qt::AlignRight | Qt::AlignVCenter,

                      QString::number(label));

              }

        Michal Klocek
    
Add zoom support...

              r67
            
          }

          //painter->drawRect(m_rect.adjusted(0, 0, -1, -1));

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
      }

      */

      void AxisItem::createItems()

      {

          //TODO: this is very inefficient handling

              qDeleteAll(m_shades);

              m_shades.clear();

              qDeleteAll(m_grid);

              m_grid.clear();

              qDeleteAll(m_labels);

              m_labels.clear();

             if(m_type==X_AXIS) {

               const qreal deltaX = m_rect.width() / m_ticks;

               for (int i = 0; i <= m_ticks; ++i) {

                   int x = i * deltaX + m_rect.left();

                   qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()/ m_ticks);

        Michal Klocek
    
Add gradient bacground support...

              r86
            
                   m_grid<<new QGraphicsLineItem(x, m_rect.top(), x, m_rect.bottom(),this);

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                   QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);

                   QPointF center = text->boundingRect().center();

                   text->setPos(x - center.x(), m_rect.bottom() + LABEL_PADDING);

                   //text->rotate(-45);

                   m_labels<<text;

               }

             }

             if(m_type==Y_AXIS) {

               const qreal deltaY = m_rect.height()/ m_ticks;

               for (int j = 0; j <= m_ticks; ++j) {

                   int y = j * -deltaY + m_rect.bottom();

                   qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()

                       / m_ticks);

        Michal Klocek
    
Add gradient bacground support...

              r86
            
                   m_grid<<new QGraphicsLineItem(m_rect.left()  , y, m_rect.right(), y,this);

        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
                   QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);

                   QPointF center = text->boundingRect().center();

                   text->setPos(m_rect.left() - text->boundingRect().width() - LABEL_PADDING , y-center.y());

                   //text->rotate(-45);

                    m_labels<<text;

               }

             }

        Michal Klocek
    
Add zoom support...

              r67
            
        Michal Klocek
    
Refactora axis and line chart to use graphics items insted of painter.

              r85
            
             //painter->drawRect(m_rect.adjusted(0, 0, -1, -1));

        Michal Klocek
    
Add zoom support...

              r67
            
      }

      //TODO "nice numbers algorithm"

      QTCOMMERCIALCHART_END_NAMESPACE

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Michal Klocek Add zoom support...	r67	#include "axisitem_p.h"
		#include <QPainter>
		#include <QDebug>

Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	#define LABEL_PADDING 5

Michal Klocek Add zoom support...	r67	QTCOMMERCIALCHART_BEGIN_NAMESPACE

Tero Ahola Refactored themes; now enabled for line, scatter and pies...	r103	AxisItem::AxisItem(AxisType type,QGraphicsItem* parent) :
		QGraphicsItem(parent),
		m_ticks(4),
		m_type(type)
Michal Klocek Add zoom support...	r67	{
		}

		AxisItem::~AxisItem()
		{
		}

		void AxisItem::setLength(int length)
		{
		QPainterPath path;
		path.moveTo(QPointF(0,0));
		path.lineTo(length,0);
		// path.lineTo(length-4,0);
		// path.lineTo(length,3);
		// path.lineTo(length-4,6);
		// path.lineTo(length-4,4);
		// path.lineTo(0,4);
		// path.lineTo(0,2);
		m_path=path;
		update();
		}

		QRectF AxisItem::boundingRect() const
		{
		return m_rect;
		}

		void AxisItem::setPlotDomain(const PlotDomain& plotDomain)
		{
		m_plotDomain = plotDomain;
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	createItems();
Michal Klocek Add zoom support...	r67	}
Tero Ahola Refactored themes; now enabled for line, scatter and pies...	r103
		void AxisItem::setPos(const QPointF & pos)
		{
		QGraphicsItem::setPos(pos);
		}

		void AxisItem::resize(const QSize &size)
		{
		m_rect = QRectF(QPoint(0,0),size);
		createItems();
		}

		void AxisItem::setTheme(ChartTheme *theme)
		{
		if (theme) {
		// TODO: add axis related properties to the theme class and use them here
		}
		}

Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	/*
Michal Klocek Add zoom support...	r67	void AxisItem::paint(QPainter painter, const QStyleOptionGraphicsItem option,QWidget *widget)
		{
		if (!m_rect.isValid())
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	return;
Michal Klocek Add zoom support...	r67
		if(m_type==X_AXIS) {

Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	const qreal deltaX = m_rect.width() / m_ticks;

		for (int i = 0; i <= m_ticks; ++i) {

		int x = i * deltaX + m_rect.left();
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	if(i==0) x--;
		if(i==m_ticks) x++;
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()
		/ m_ticks);
		painter->drawLine(x, m_rect.top()-1, x, m_rect.bottom()+1);
		// painter->drawLine(x, m_rect.bottom()-1, x, m_rect.bottom()-1 + 5);
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	painter->drawText(x - 50, m_rect.bottom() + 5, 100, 20,Qt::AlignHCenter \| Qt::AlignTop, QString::number(label));
		}
Michal Klocek Add zoom support...	r67	}

		if(m_type==Y_AXIS) {

Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	const qreal deltaY = (m_rect.height()) / m_ticks;
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	for (int j = 0; j <= m_ticks; ++j) {
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	int y = j * -deltaY + m_rect.bottom();
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	if(j==0) y++;
		if(j==m_ticks) y--;

		qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()
		/ m_ticks);

		painter->drawLine(m_rect.left()-1, y, m_rect.right()+1, y);
		//painter->drawLine(m_rect.left() - 5, y, m_rect.left(), y);
		//TODO : margin = 50 ;
		painter->drawText(m_rect.left() - 50, y - 10, 50 - 5, 20,
		Qt::AlignRight \| Qt::AlignVCenter,
		QString::number(label));
		}
Michal Klocek Add zoom support...	r67	}

		//painter->drawRect(m_rect.adjusted(0, 0, -1, -1));
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	}
		*/
		void AxisItem::createItems()
		{

		//TODO: this is very inefficient handling

		qDeleteAll(m_shades);
		m_shades.clear();
		qDeleteAll(m_grid);
		m_grid.clear();
		qDeleteAll(m_labels);
		m_labels.clear();


		if(m_type==X_AXIS) {

		const qreal deltaX = m_rect.width() / m_ticks;

		for (int i = 0; i <= m_ticks; ++i) {

		int x = i * deltaX + m_rect.left();

		qreal label = m_plotDomain.m_minX + (i * m_plotDomain.spanX()/ m_ticks);

Michal Klocek Add gradient bacground support...	r86	m_grid<<new QGraphicsLineItem(x, m_rect.top(), x, m_rect.bottom(),this);
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85
		QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);
		QPointF center = text->boundingRect().center();
		text->setPos(x - center.x(), m_rect.bottom() + LABEL_PADDING);
		//text->rotate(-45);
		m_labels<<text;
		}
		}

		if(m_type==Y_AXIS) {

		const qreal deltaY = m_rect.height()/ m_ticks;

		for (int j = 0; j <= m_ticks; ++j) {

		int y = j * -deltaY + m_rect.bottom();

		qreal label = m_plotDomain.m_minY + (j * m_plotDomain.spanY()
		/ m_ticks);

Michal Klocek Add gradient bacground support...	r86	m_grid<<new QGraphicsLineItem(m_rect.left() , y, m_rect.right(), y,this);
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	QGraphicsSimpleTextItem* text = new QGraphicsSimpleTextItem(QString::number(label),this);
		QPointF center = text->boundingRect().center();

		text->setPos(m_rect.left() - text->boundingRect().width() - LABEL_PADDING , y-center.y());
		//text->rotate(-45);
		m_labels<<text;

		}
		}
Michal Klocek Add zoom support...	r67
Michal Klocek Refactora axis and line chart to use graphics items insted of painter.	r85	//painter->drawRect(m_rect.adjusted(0, 0, -1, -1));
Michal Klocek Add zoom support...	r67	}

		//TODO "nice numbers algorithm"

		QTCOMMERCIALCHART_END_NAMESPACE