/*
 * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef LINE_CHART_RENDERER_H
#define LINE_CHART_RENDERER_H

#include <InterfaceDefs.h>
#include <Rect.h>

#include <ObjectList.h>

#include "chart/ChartDataRange.h"
#include "chart/ChartRenderer.h"


class BView;


class LineChartRenderer : public ChartRenderer {
public:
        class DataSourceConfig;

public:
                                                                LineChartRenderer();
        virtual                                         ~LineChartRenderer();

        virtual bool                            AddDataSource(ChartDataSource* dataSource,
                                                                        int32 index,
                                                                        ChartRendererDataSourceConfig* config);
        virtual void                            RemoveDataSource(ChartDataSource* dataSource);

        virtual void                            SetFrame(const BRect& frame);
        virtual void                            SetDomain(const ChartDataRange& domain);
        virtual void                            SetRange(const ChartDataRange& range);

        virtual void                            Render(BView* view, BRect updateRect);

private:
                        struct DataSourceInfo;

                        typedef BObjectList<DataSourceInfo> DataSourceList;

private:
                        void                            _InvalidateSamples();
                        bool                            _UpdateSamples();

private:
                        DataSourceList          fDataSources;
                        BRect                           fFrame;
                        ChartDataRange          fDomain;
                        ChartDataRange          fRange;
};


class LineChartRendererDataSourceConfig : public ChartRendererDataSourceConfig {
public:
                                                                LineChartRendererDataSourceConfig();
                                                                LineChartRendererDataSourceConfig(
                                                                        const rgb_color& color);
        virtual                                         ~LineChartRendererDataSourceConfig();

                        const rgb_color&        Color() const;
                        void                            SetColor(const rgb_color& color);

private:
                        rgb_color                       fColor;
};


#endif  // LINE_CHART_RENDERER_H