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

added percent bar chart example

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             bargroup.cpp
        
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        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
      #include "bargroup.h"

      #include "bar.h"

      #include <QDebug>

      QTCOMMERCIALCHART_BEGIN_NAMESPACE

        sauimone
    
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      BarGroup::BarGroup(BarChartSeries& series, QGraphicsItem *parent) :

        sauimone
    
BarGroup and Bar as ChartItems instead of GraphicItems

              r74
            
        ChartItem(parent)

        sauimone
    
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        ,mSeries(series)

        ,mLayoutSet(false)

        ,mLayoutDirty(true)

        sauimone
    
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              r78
            
        ,mBarDefaultWidth(10)

        sauimone
    
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              r56
            
      {

          dataChanged();

      }

        sauimone
    
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              r78
            
      void BarGroup::setSize(const QSize& size)

      {

          qDebug() << "BarGroup::setSize";

        sauimone
    
removed old resize method from barchart

              r90
            
          mWidth = size.width();

          mHeight = size.height();

          layoutChanged();

          mLayoutSet = true;

        sauimone
    
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              r78
            
      }

      void BarGroup::setPlotDomain(const PlotDomain& data)

      {

          qDebug() << "BarGroup::setPlotDomain";

        sauimone
    
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              r82
            
          // TODO:

        sauimone
    
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              r101
            
          mPlotDomain = data;

        sauimone
    
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              r78
            
      }

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
      void BarGroup::setBarWidth( int w )

      {

          mBarDefaultWidth = w;

      }

        sauimone
    
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              r82
            
      int BarGroup::addColor( QColor color )

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
      {

        sauimone
    
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          int colorIndex = mColors.count();

          mColors.append(color);

          return colorIndex;

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
      }

        sauimone
    
reset colors for barchart

              r92
            
      void BarGroup::resetColors()

      {

          mColors.clear();

      }

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
      void BarGroup::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

      {

          if (!mLayoutSet) {

              qDebug() << "QBarChart::paint called without layout set. Aborting.";

              return;

          }

          if (mLayoutDirty) {

              // Layout or data has changed. Need to redraw.

              foreach(QGraphicsItem* i, childItems()) {

                  i->paint(painter,option,widget);

              }

          }

      }

      QRectF BarGroup::boundingRect() const

      {

          return QRectF(0,0,mWidth,mHeight);

      }

      void BarGroup::dataChanged()

      {

          qDebug() << "QBarChart::dataChanged mSeries";

          // Find out maximum and minimum of all series

          mMax = mSeries.max();

          mMin = mSeries.min();

          // Delete old bars

          // Is this correct way to delete childItems?

          foreach (QGraphicsItem* item, childItems()) {

              delete item;

          }

          // Create new graphic items for bars

        sauimone
    
Improved bar chart series

              r71
            
          int totalItems = mSeries.countTotalItems();

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

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
              Bar *bar = new Bar(this);

              childItems().append(bar);

          }

          mLayoutDirty = true;

      }

      void BarGroup::layoutChanged()

      {

          // Scale bars to new layout

          // Layout for bars:

        sauimone
    
bar chart layout fixing

              r99
            
          if (mSeries.countRows() <= 0) {

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
              // Nothing to do.

              return;

          }

        sauimone
    
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              r101
            
          // TODO: better way to auto-layout?

        sauimone
    
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              r99
            
          // Use reals for accurancy (we might get some compiler warnings... :)

          int columnCount = mSeries.countColumns();

          int rowCount = mSeries.countRows();

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
        sauimone
    
bar chart layout fixing

              r99
            
          qreal tW = mWidth;

          qreal tH = mHeight;

          qreal tM = mMax;

          qreal scale = (tH/tM);

          qreal tC = columnCount+1;

          qreal xStepPerSeries = (tW/tC);

          qDebug() << "XSTEP:" << xStepPerSeries;

        sauimone
    
correct drawing for barchart

              r82
            
          // Scaling.

        sauimone
    
Improved bar chart series

              r71
            
          int itemIndex(0);

        sauimone
    
bar chart layout fixing

              r99
            
          for (int column=0; column < columnCount; column++) {

              qreal xPos = xStepPerSeries * column + ((tW + mBarDefaultWidth*rowCount)/(columnCount*2));

              for (int row = 0; row < rowCount; row++) {

                  qreal barHeight = mSeries.valueAt(row, column) * scale;

                  Bar* bar = reinterpret_cast<Bar*> (childItems().at(itemIndex));

                  // TODO: width settable per bar?

                  bar->resize(mBarDefaultWidth, barHeight);

                  bar->setColor(mColors.at(row));

                  bar->setPos(xPos, mHeight); // item*posStep+startPos + series * mBarDefaultWidth, mHeight);

                  itemIndex++;

                  xPos += mBarDefaultWidth;

              }

          }

        sauimone
    
Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?

              r56
            
          mLayoutDirty = true;

      }

      QTCOMMERCIALCHART_END_NAMESPACE

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sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	#include "bargroup.h"
		#include "bar.h"
		#include <QDebug>

		QTCOMMERCIALCHART_BEGIN_NAMESPACE

sauimone Added bar chart example	r78	BarGroup::BarGroup(BarChartSeries& series, QGraphicsItem *parent) :
sauimone BarGroup and Bar as ChartItems instead of GraphicItems	r74	ChartItem(parent)
sauimone Improved bar chart series	r71	,mSeries(series)
		,mLayoutSet(false)
		,mLayoutDirty(true)
sauimone Added bar chart example	r78	,mBarDefaultWidth(10)
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	{
		dataChanged();
		}

sauimone Added bar chart example	r78
		void BarGroup::setSize(const QSize& size)
		{
		qDebug() << "BarGroup::setSize";
sauimone removed old resize method from barchart	r90	mWidth = size.width();
		mHeight = size.height();
		layoutChanged();
		mLayoutSet = true;
sauimone Added bar chart example	r78	}

		void BarGroup::setPlotDomain(const PlotDomain& data)
		{
		qDebug() << "BarGroup::setPlotDomain";
sauimone correct drawing for barchart	r82	// TODO:
sauimone percent bar chart	r101	mPlotDomain = data;
sauimone Added bar chart example	r78	}

sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	void BarGroup::setBarWidth( int w )
		{
		mBarDefaultWidth = w;
		}

sauimone correct drawing for barchart	r82	int BarGroup::addColor( QColor color )
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	{
sauimone correct drawing for barchart	r82	int colorIndex = mColors.count();
		mColors.append(color);
		return colorIndex;
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	}

sauimone reset colors for barchart	r92	void BarGroup::resetColors()
		{
		mColors.clear();
		}

sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	void BarGroup::paint(QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget)
		{
		if (!mLayoutSet) {
		qDebug() << "QBarChart::paint called without layout set. Aborting.";
		return;
		}
		if (mLayoutDirty) {
		// Layout or data has changed. Need to redraw.
		foreach(QGraphicsItem* i, childItems()) {
		i->paint(painter,option,widget);
		}
		}
		}

		QRectF BarGroup::boundingRect() const
		{
		return QRectF(0,0,mWidth,mHeight);
		}


		void BarGroup::dataChanged()
		{
		qDebug() << "QBarChart::dataChanged mSeries";

		// Find out maximum and minimum of all series
		mMax = mSeries.max();
		mMin = mSeries.min();

		// Delete old bars
		// Is this correct way to delete childItems?
		foreach (QGraphicsItem* item, childItems()) {
		delete item;
		}

		// Create new graphic items for bars
sauimone Improved bar chart series	r71	int totalItems = mSeries.countTotalItems();
		for (int i=0; i<totalItems; i++) {
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	Bar *bar = new Bar(this);
		childItems().append(bar);
		}

		mLayoutDirty = true;
		}

		void BarGroup::layoutChanged()
		{
		// Scale bars to new layout
		// Layout for bars:
sauimone bar chart layout fixing	r99	if (mSeries.countRows() <= 0) {
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	// Nothing to do.
		return;
		}

sauimone percent bar chart	r101	// TODO: better way to auto-layout?
sauimone bar chart layout fixing	r99	// Use reals for accurancy (we might get some compiler warnings... :)
		int columnCount = mSeries.countColumns();
		int rowCount = mSeries.countRows();
sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56
sauimone bar chart layout fixing	r99	qreal tW = mWidth;
		qreal tH = mHeight;
		qreal tM = mMax;
		qreal scale = (tH/tM);

		qreal tC = columnCount+1;
		qreal xStepPerSeries = (tW/tC);

		qDebug() << "XSTEP:" << xStepPerSeries;

sauimone correct drawing for barchart	r82	// Scaling.
sauimone Improved bar chart series	r71	int itemIndex(0);
sauimone bar chart layout fixing	r99	for (int column=0; column < columnCount; column++) {
		qreal xPos = xStepPerSeries * column + ((tW + mBarDefaultWidthrowCount)/(columnCount2));
		for (int row = 0; row < rowCount; row++) {
		qreal barHeight = mSeries.valueAt(row, column) * scale;
		Bar* bar = reinterpret_cast<Bar*> (childItems().at(itemIndex));

		// TODO: width settable per bar?
		bar->resize(mBarDefaultWidth, barHeight);
		bar->setColor(mColors.at(row));
		bar->setPos(xPos, mHeight); // itemposStep+startPos + series mBarDefaultWidth, mHeight);
		itemIndex++;
		xPos += mBarDefaultWidth;
		}
		}

sauimone Integrating bar chart. Cleaned up old implementation. TODO: show this in test application. how?	r56	mLayoutDirty = true;
		}

		QTCOMMERCIALCHART_END_NAMESPACE