Content

IForexChart

Describes minimum required functionality from ForexChart control.

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

class IForexChart :public virtual IControl
{
public:
    class IForexChartData // Describes forex data 
    {
    public:
        virtual int getCount() = 0; // Return count of points 
        virtual const CDateTime &getDateTime(const int index) const = 0; // Return datetime of specified point 
        virtual float getOpen(const int index) = 0; // Return open value of specified point 
        virtual float getClose(const int index) = 0; // Return close value of specified point 
        virtual float getMin(const int index) = 0; // Return minimim value of specified point 
        virtual float getMax(const int index) = 0; // Return maximum value of specified point 
        virtual String getXLabel(const double x, const String &default_label) = 0; // Return X-axis label for specified point or default one 
        virtual String getYLabel(const double y, const String &default_label) = 0; // Return Y-axis label for specified point or default one 

        virtual bool setDateTime(const int index, const CDateTime &value) = 0; // Set datetime of specified point 
        virtual bool setOpen(const int index, const float value) = 0; // Set open value of specified point 
        virtual bool setClose(const int index, const float value) = 0; // Set close value of specified point 
        virtual bool setMin(const int index, const float value) = 0; // Set minimum value of specified point 
        virtual bool setMax(const int index, const float value) = 0; // Set maximum value of specified point 

        virtual void Release() = 0; // Destroy 
        virtual IForexChartData *Clone() = 0; // Create a copy 

        virtual bool Add(const CDateTime &datetime, const float open, const float close, const float min, const float max) = 0; // Add point 
        virtual bool Delete(const int index) = 0; // Delete specified point 
        virtual bool Clear() = 0; // Delete all points 
    };
public:
    void(*OnHoverPoint)(IForexChart *sender, const int index); // Event called when point appears under mouse pointer 
    void(*OnLeavePoint)(IForexChart *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 PointD getXRange() = 0;  // Return range in X-direction in global coordinate space represented on client area of control 
    virtual PointD 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 IForexChartData *getData() = 0; // Return assigned data 

    virtual bool setXRange(const PointD &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 PointD &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 setData(IForexChartData *value, const bool release_old) = 0; // Assign new data. If release_old is set to true then existing data will be destroyed first 

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