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#ifndef TextMark_H
#define TextMark_H

#include "texteditor_global.h"

#include <QObject>
#include <QIcon>

QT_BEGIN_NAMESPACE
class QPainter;
class QRect;
class QTextBlock;
QT_END_NAMESPACE

namespace TextEditor {

class BaseTextEditor;
class TextDocument;

namespace Internal { class TextMarkRegistry; }

class TEXTEDITOR_EXPORT TextMark
{
public:
    TextMark(const QString &fileName, int lineNumber);
    virtual ~TextMark();

    // determine order on markers on the same line.
    enum Priority
    {
        LowPriority,
        NormalPriority,
        HighPriority // shown on top.
    };

    QString fileName() const;
    int lineNumber() const;

    virtual void paint(QPainter *painter, const QRect &rect) const;
    /// called if the filename of the document changed
    virtual void updateFileName(const QString &fileName);
    virtual void updateLineNumber(int lineNumber);
    virtual void updateBlock(const QTextBlock &block);
    virtual void move(int line);
    virtual void removedFromEditor();
    virtual bool isClickable() const;
    virtual void clicked();
    virtual bool isDraggable() const;
    virtual void dragToLine(int lineNumber);

    void setIcon(const QIcon &icon);
    // call this if the icon has changed.
    void updateMarker();
    Priority priority() const;
    void setPriority(Priority prioriy);
    bool isVisible() const;
    void setVisible(bool isVisible);
    double widthFactor() const;
    void setWidthFactor(double factor);

    TextDocument *baseTextDocument() const;
    void setBaseTextDocument(TextDocument *baseTextDocument);

private:
    Q_DISABLE_COPY(TextMark)
    friend class Internal::TextMarkRegistry;

    TextDocument *m_baseTextDocument;
    QString m_fileName;
    int m_lineNumber;
    Priority m_priority;
    bool m_visible;
    QIcon m_icon;
    double m_widthFactor;
};

} // namespace TextEditor

#endif // TextMark_H
