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

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

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      #ifndef QBARCHART_H

      #define QBARCHART_H

      #include <QGraphicsItem>

      #include "bar.h"

      //#include "qbarchartview.h"

      #include "barchartseries.h"

      QTCOMMERCIALCHART_BEGIN_NAMESPACE

      // TODO: Better name for this? The function of this class is to know where each bar in series is laid out.

      // Class has knowledge of single series of data (owns vs reference?)

      class BarGroup : public QGraphicsItem

      {

      public:

          explicit BarGroup(BarChartSeries& series, QGraphicsItem *parent = 0);

          // Layout "api"

          void resize( int w, int h );        // Size for whole series. Single bars are drawn inside this area

          void setPos(qreal x, qreal y);

          void setBarWidth( int w );          // Default width for each bar

          void setColor( QColor color );      // Default color for each bar

          // From QGraphicsItem

          void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

          QRectF boundingRect() const;

      private:

          void dataChanged();     // data of series has changed -> need to recalculate bar sizes

          void layoutChanged();   // layout has changed -> need to recalculate bar sizes

      private:

          // Data

          BarChartSeries& mSeries;

          int mMin;                                   // Min and max values of data. (updated when data is changed, used when drawing)

          int mMax;

          int mHeight;        // Layout spesific

          int mWidth;

          int mBarDefaultWidth;

          QColor mColor;

          bool mLayoutSet;    // True, if component has been laid out.

          bool mLayoutDirty;

      };

      QTCOMMERCIALCHART_END_NAMESPACE

      #endif // QBARCHART_H

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				#ifndef QBARCHART_H
				#define QBARCHART_H

				#include <QGraphicsItem>

				#include "bar.h"
				//#include "qbarchartview.h"
				#include "barchartseries.h"

				QTCOMMERCIALCHART_BEGIN_NAMESPACE

				// TODO: Better name for this? The function of this class is to know where each bar in series is laid out.
				// Class has knowledge of single series of data (owns vs reference?)
				class BarGroup : public QGraphicsItem
				{

				public:
				explicit BarGroup(BarChartSeries& series, QGraphicsItem *parent = 0);

				// Layout "api"
				void resize( int w, int h ); // Size for whole series. Single bars are drawn inside this area
				void setPos(qreal x, qreal y);
				void setBarWidth( int w ); // Default width for each bar
				void setColor( QColor color ); // Default color for each bar

				// From QGraphicsItem
				void paint(QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget);
				QRectF boundingRect() const;

				private:

				void dataChanged(); // data of series has changed -> need to recalculate bar sizes
				void layoutChanged(); // layout has changed -> need to recalculate bar sizes

				private:

				// Data
				BarChartSeries& mSeries;
				int mMin; // Min and max values of data. (updated when data is changed, used when drawing)
				int mMax;

				int mHeight; // Layout spesific
				int mWidth;
				int mBarDefaultWidth;

				QColor mColor;

				bool mLayoutSet; // True, if component has been laid out.
				bool mLayoutDirty;

				};

				QTCOMMERCIALCHART_END_NAMESPACE

				#endif // QBARCHART_H