source: ps/trunk/source/gui/ObjectTypes/CChart.h

/* Copyright (C) 2021 Wildfire Games.
 * This file is part of 0 A.D.
 *
 * 0 A.D. is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * 0 A.D. is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef INCLUDED_CCHART
#define INCLUDED_CCHART

#include "gui/ObjectBases/IGUIObject.h"
#include "gui/ObjectBases/IGUITextOwner.h"
#include "gui/SettingTypes/CGUIColor.h"
#include "gui/SettingTypes/CGUIList.h"
#include "gui/SettingTypes/CGUISeries.h"
#include "maths/Size2D.h"
#include "maths/Vector2D.h"

#include <vector>

struct CChartData
{
    // Avoid copying the container.
    NONCOPYABLE(CChartData);
    MOVABLE(CChartData);
    CChartData() = default;

    CGUIColor m_Color;
    std::vector<CVector2D> m_Points;
};

/**
 * Chart for a data visualization as lines or points
 */
class CChart : public IGUIObject, public IGUITextOwner
{
    GUI_OBJECT(CChart)

public:
    CChart(CGUI& pGUI);
    virtual ~CChart();

protected:
    /**
     * @see IGUIObject#UpdateCachedSize()
     */
    void UpdateCachedSize();

    /**
     * @see IGUIObject#HandleMessage()
     */
    virtual void HandleMessage(SGUIMessage& Message);

    /**
     * Draws the Chart
     */
    virtual void Draw(CCanvas2D& canvas);

    virtual CRect GetChartRect() const;

    void UpdateSeries();

    void SetupText();

    std::vector<CChartData> m_Series;

    CVector2D m_LeftBottom, m_RightTop;

    std::vector<CVector2D> m_TextPositions;

    bool m_EqualX, m_EqualY;

    // Settings
    CGUISimpleSetting<CGUIColor> m_AxisColor;
    CGUISimpleSetting<float> m_AxisWidth;
    CGUISimpleSetting<float> m_BufferZone;
    CGUISimpleSetting<CStrW> m_Font;
    CGUISimpleSetting<CStrW> m_FormatX;
    CGUISimpleSetting<CStrW> m_FormatY;
    CGUISimpleSetting<CGUIList> m_SeriesColor;
    CGUISimpleSetting<CGUISeries> m_SeriesSetting;

private:
    void DrawAxes(CCanvas2D& canvas) const;

    CSize2D AddFormattedValue(const CStrW& format, const float value, const CStrW& font, const float buffer_zone);

    void UpdateBounds();
};

#endif // INCLUDED_CCHART