/*

Pencil - Traditional Animation Software
Copyright (C) 2005-2007 Patrick Corrieri & Pascal Naidon
Copyright (C) 2012-2018 Matthew Chiawen Chang

This program 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; version 2 of the License.

This program 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.

*/

#ifndef SELECTTOOL_H
#define SELECTTOOL_H

#include "basetool.h"

class Layer;

class SelectTool : public BaseTool
{
    Q_OBJECT

public:
    explicit SelectTool(QObject* parent = 0);
    ToolType type() override { return SELECT; }
    void loadSettings() override;
    QCursor cursor() override;

private:

    void mousePressEvent(QMouseEvent*) override;
    void mouseReleaseEvent(QMouseEvent*) override;
    void mouseMoveEvent(QMouseEvent*) override;
    bool keyPressEvent(QKeyEvent *event) override;

    QPointF whichAnchorPoint();
    void controlOffsetOrigin();

    void beginSelection();
    void keepSelection();

    inline bool isSelectionPointValid() { return mAnchorOriginPoint != getLastPoint(); }
    bool maybeDeselect();


    // Store selection origin so we can calculate
    // the selection rectangle in mousePressEvent.
    QPointF mAnchorOriginPoint;
    MoveMode mOldMoveMode;

    Layer* mCurrentLayer = nullptr;

};

#endif
