tablesideselector.h

/*
Copyright (C) 2011 Elvis Stansvik <elvstone@gmail.com>

For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
#ifndef TABLESIDESELECTOR_H
#define TABLESIDESELECTOR_H

#include <QFlags>
#include <QPen>
#include <QList>
#include <QFrame>

class QPaintEvent;
class QMouseEvent;
class QEvent;

class TableSideSelector : public QFrame
{
    Q_OBJECT

    Q_PROPERTY(Sides selection READ selection WRITE setSelection RESET clearSelection NOTIFY selectionChanged)
    Q_PROPERTY(Style style READ style WRITE setStyle)

public:
    enum Side
    {
        None = 0,   
        Left = 1,   
        Right = 2,  
        Top = 4,    
        Bottom = 8, 
        All = Left | Right | Top | Bottom
    };
    Q_DECLARE_FLAGS(Sides, Side)

    
    enum Style
    {
        CellStyle,  
        TableStyle, 
    };

    TableSideSelector(QWidget* parent);

    Sides selection() const { return m_selection; }

    QList<TableSideSelector::Side> selectionList() const;

    void setSelection(Sides selection) { m_selection = selection; emit selectionChanged(); }

    void clearSelection() { m_selection = None; emit selectionChanged(); }

    Style style() const { return m_style; }

    void setStyle(Style style) { m_style = style; }

    QSize sizeHint() const { return QSize(80, 80); }

    int heightForWidth(int width) const { return width; }

signals:
    void selectionChanged();

protected:
    void paintEvent(QPaintEvent* event);
    void mousePressEvent(QMouseEvent* event);
    void mouseMoveEvent(QMouseEvent* event);
    void leaveEvent(QEvent* event);

private:
    Side closestSide(const QPointF& point) const;

private:
    Sides m_selection;

    Style m_style;

    Side m_highlighted;

    QLineF m_left;

    QLineF m_right;

    QLineF m_top;

    QLineF m_bottom;
};

Q_DECLARE_OPERATORS_FOR_FLAGS(TableSideSelector::Sides)

#endif // TABLESIDESELECTOR_H