// xlsxdrawinganchor_p.h

#ifndef QXLSX_XLSXDRAWINGANCHOR_P_H
#define QXLSX_XLSXDRAWINGANCHOR_P_H

#include "xlsxglobal.h"

#include <memory>

#include <QPoint>
#include <QSize>
#include <QString>
#include <QXmlStreamReader>
#include <QXmlStreamWriter>

QT_BEGIN_NAMESPACE_XLSX

class Drawing;
class MediaFile;
class Chart;

// Helper class
struct XlsxMarker {
    XlsxMarker() {}
    XlsxMarker(int row, int column, int rowOffset, int colOffset)
        : cell(QPoint(row, column))
        , offset(rowOffset, colOffset)
    {
    }

    int row() const { return cell.x(); }
    int col() const { return cell.y(); }
    int rowOff() const { return offset.width(); }
    int colOff() const { return offset.height(); }

    QPoint cell;
    QSize offset;
};

class DrawingAnchor
{
public:
    enum ObjectType { GraphicFrame, Shape, GroupShape, ConnectionShape, Picture, Unknown };

    DrawingAnchor(Drawing *drawing, ObjectType objectType);
    virtual ~DrawingAnchor();

    void setObjectPicture(const QImage &img);
    bool getObjectPicture(QImage &img);

    void setObjectGraphicFrame(std::shared_ptr<QXlsx::Chart> chart);

    virtual bool loadFromXml(QXmlStreamReader &reader)     = 0;
    virtual void saveToXml(QXmlStreamWriter &writer) const = 0;

    virtual int row() const;
    virtual int col() const;

protected:
    QPoint loadXmlPos(QXmlStreamReader &reader);
    QSize loadXmlExt(QXmlStreamReader &reader);
    XlsxMarker loadXmlMarker(QXmlStreamReader &reader, const QString &node);
    void loadXmlObject(QXmlStreamReader &reader);
    void loadXmlObjectShape(QXmlStreamReader &reader);
    void loadXmlObjectGroupShape(QXmlStreamReader &reader);
    void loadXmlObjectGraphicFrame(QXmlStreamReader &reader);
    void loadXmlObjectConnectionShape(QXmlStreamReader &reader);
    void loadXmlObjectPicture(QXmlStreamReader &reader);

    void saveXmlPos(QXmlStreamWriter &writer, const QPoint &pos) const;
    void saveXmlExt(QXmlStreamWriter &writer, const QSize &ext) const;
    void saveXmlMarker(QXmlStreamWriter &writer,
                       const XlsxMarker &marker,
                       const QString &node) const;
    void saveXmlObject(QXmlStreamWriter &writer) const;
    void saveXmlObjectShape(QXmlStreamWriter &writer) const;
    void saveXmlObjectGroupShape(QXmlStreamWriter &writer) const;
    void saveXmlObjectGraphicFrame(QXmlStreamWriter &writer) const;
    void saveXmlObjectConnectionShape(QXmlStreamWriter &writer) const;
    void saveXmlObjectPicture(QXmlStreamWriter &writer) const;

    Drawing *m_drawing;
    ObjectType m_objectType;
    std::shared_ptr<MediaFile> m_pictureFile;
    std::shared_ptr<Chart> m_chartFile;

    int m_id;

public:
    int getm_id();

protected:
    // liufeij {{
    void setObjectShape(const QImage &img); // liufeij

    QString editASName;
    // below only for twocellanchor shape
    QPoint posTA;       // for shape liufeij 20181024
    QSize extTA;        // for shape liufeij 20181024
    int rotWithShapeTA; //// for shape liufeij 20181024
    int dpiTA;          //// for shape liufeij 20181024
    QString sp_textlink, sp_macro, sp_blip_cstate, sp_blip_rembed;

    // BELOW only for cxnSp shape
    QString cxnSp_filpV, cxnSp_macro;
    // below for cxnsp and sp
    QString xsp_cNvPR_name, xsp_cNvPR_id;       // x measns shape and cxnSp together using
    QString xbwMode;                            // same as above
    QString xIn_algn, xIn_cmpd, xIn_cap, xIn_w; // cxnSp only need xIn_w
    QString xprstGeom_prst;
    QString x_headEnd_w, x_headEnd_len, x_headEnd_tyep;
    QString x_tailEnd_w, x_tailEnd_len, x_tailEnd_tyep;
    QString Style_inref_idx, style_fillref_idx, style_effectref_idx, style_forntref_idx;
    QString Style_inref_val, style_fillref_val, style_effectref_val, style_forntref_val;
    // liufeij }}
};

class DrawingAbsoluteAnchor : public DrawingAnchor
{
public:
    DrawingAbsoluteAnchor(Drawing *drawing, ObjectType objectType = Unknown);

    QPoint pos;
    QSize ext;

    bool loadFromXml(QXmlStreamReader &reader) override;
    void saveToXml(QXmlStreamWriter &writer) const override;
};

class DrawingOneCellAnchor : public DrawingAnchor
{
public:
    DrawingOneCellAnchor(Drawing *drawing, ObjectType objectType = Unknown);

    XlsxMarker from;
    QSize ext;

    int row() const override;
    int col() const override;

    bool loadFromXml(QXmlStreamReader &reader) override;
    void saveToXml(QXmlStreamWriter &writer) const override;
};

class DrawingTwoCellAnchor : public DrawingAnchor
{
public:
    DrawingTwoCellAnchor(Drawing *drawing, ObjectType objectType = Unknown);

    XlsxMarker from;
    XlsxMarker to;

    int row() const override;
    int col() const override;

    bool loadFromXml(QXmlStreamReader &reader) override;
    void saveToXml(QXmlStreamWriter &writer) const override;
};

QT_END_NAMESPACE_XLSX

#endif // QXLSX_XLSXDRAWINGANCHOR_P_H