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#ifndef BARPRESENTERBASE_H
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#define BARPRESENTERBASE_H
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#include "chartitem_p.h"
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#include "barchartmodel_p.h"
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#include <QPen>
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#include <QBrush>
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#include <QGraphicsItem>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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class Bar;
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class BarLabel;
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class Separator;
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class BarValue;
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// Common implemantation of different presenters. Not to be instantiated.
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class BarPresenterBase : public QObject, public ChartItem
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{
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Q_OBJECT
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public:
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BarPresenterBase(BarChartModel& model, QGraphicsItem *parent = 0);
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void setSeparatorsVisible(bool visible = true);
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public:
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// From QGraphicsItem
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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QRectF boundingRect() const;
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// TODO: these may change with layout awarness.
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void setBarWidth( int w );
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void setPen(QPen pen);
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QPen pen();
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void setBrush(QBrush brush);
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QBrush brush();
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// TODO: Consider the domain for layoutChanged. May be use case, may not be. If it is, then the derived classes need to implement it
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virtual void dataChanged(); // data of series has changed -> need to recalculate bar sizes
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virtual void layoutChanged() = 0; // layout has changed -> need to recalculate bar sizes
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public Q_SLOTS:
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void setFloatingValues(QBarSet *set);
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protected slots:
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void handleModelChanged(int index);
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void handleDomainChanged(const Domain& domain);
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void handleGeometryChanged(const QRectF& size);
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protected:
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// TODO: consider these.
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int mHeight; // Layout spesific
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int mWidth;
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int mBarDefaultWidth;
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bool mLayoutSet; // True, if component has been laid out.
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bool mLayoutDirty;
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bool mSeparatorsVisible;
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BarChartModel& mModel;
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// Not owned.
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QList<Bar*> mBars;
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QList<BarLabel*> mLabels;
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QList<Separator*> mSeparators;
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QList<BarValue*> mFloatingValues;
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QPen mPen;
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};
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QTCOMMERCIALCHART_END_NAMESPACE
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#endif // BARPRESENTERBASE_H
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