Content

ICartesianChart

This interface describes minimum required functionality from cartesian chart widgets.

You can find more information in comments below. Overrided methods can be found in corresponding base interface.

class ICartesianChart :public virtual IControl
{
public:
    void(*OnHoverPoint)(ICartesianChart *sender, IChartData *data, const int index); // Event called when point appears under mouse pointer 
    void(*OnLeavePoint)(ICartesianChart *sender); // Event called when there were point below mouse point and now no new point is below mouse pointer. Do not called when one point becomes unhovered and another becomes hovered. In the last case only OnHoverPoint will be called 

    virtual PointF getXRange() = 0; // Return range in X-direction in global coordinate space represented on client area of control 
    virtual PointF getYRange() = 0; // Return range in Y-direction in global coordinate space represented on client area of control 
    virtual PointB getAutoRange() = 0; // Return whether ranges in X and Y directions should be calculated automatically to represent entire data of the dataset assigned to a widget 
    virtual IChartDataSet *getDataSet() = 0; // Return assigned data set 

    virtual bool setXRange(const PointF &value) = 0; // Set range in X-direction in global coordinate space represented on client area of control. It also cancels automatical range calculation in X direction 
    virtual bool setYRange(const PointF &value) = 0; // Set range in Y-direction in global coordinate space represented on client area of control. It also cancels automatical range calculation in Y direction 
    virtual bool setAutoRange(const PointB &value) = 0; // Set whether ranges in X and Y directions should be calculated automatically(to represent entire data of the dataset assigned to a widget) 
    virtual bool setDataSet(IChartDataSet *value, const bool release_old) = 0; // Assign new data set. If release_old is set to true then existing data set will be destroyed first 

    virtual void Update() = 0; // Update widget. Should be called after updating data set to refresh a widget 
};