valentina/src/libs/vwidgets/vgrainlineitem.h

/************************************************************************
 **
 **  @file   vgrainlineitem.h
 **  @author Bojan Kverh
 **  @date   September 10, 2016
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentina project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013-2015 Valentina project
 **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
 **
 **  Valentina 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 3 of the License, or
 **  (at your option) any later version.
 **
 **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#ifndef VGRAINLINEITEM_H
#define VGRAINLINEITEM_H

#include "../vmisc/def.h"
#include "../vmisc/theme/themeDef.h"
#include "../vpatterndb/floatItemData/floatitemdef.h"
#include "vpieceitem.h"

class VPieceGrainline;

class VGrainlineItem final : public VPieceItem
{
    Q_OBJECT // NOLINT

public:
    explicit VGrainlineItem(VColorRole role, QGraphicsItem *pParent = nullptr);
    ~VGrainlineItem() override = default;

    auto shape() const -> QPainterPath override;

    void paint(QPainter *pP, const QStyleOptionGraphicsItem *pOption, QWidget *pWidget) override;
    void UpdateGeometry(const QPointF &ptPos, qreal dRotation, qreal dLength, GrainlineArrowDirection eAT);

    auto type() const -> int override { return Type; }
    enum
    {
        Type = UserType + static_cast<int>(Vis::GrainlineItem)
    };

    auto Grainline() const -> VPieceGrainline;

    auto GetColor() const -> QColor;
    void SetColor(const QColor &color);

signals:
    void SignalResized(qreal dLength);
    void SignalRotated(qreal dRot, const QPointF &ptNewPos);

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *pME) override;
    void mouseMoveEvent(QGraphicsSceneMouseEvent *pME) override;
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *pME) override;
    void hoverEnterEvent(QGraphicsSceneHoverEvent *pME) override;
    void hoverLeaveEvent(QGraphicsSceneHoverEvent *pME) override;
    void Update() override;
    void UpdateRectangle();

    auto GetAngle(const QPointF &pt) const -> double override;

    static auto Rotate(const QPointF &pt, const QPointF &ptCenter, qreal dAng) -> QPointF;
    auto GetInsideCorner(int i, qreal dDist) const -> QPointF;

private:
    Q_DISABLE_COPY_MOVE(VGrainlineItem) // NOLINT
    qreal m_dRotation{0};
    qreal m_dStartRotation{0};
    qreal m_dLength{0};
    QPolygonF m_polyBound{};
    QPointF m_ptStartPos{};
    QPointF m_ptStartMove{};
    QPolygonF m_polyResize{};
    qreal m_dStartLength{0};
    QPointF m_ptStart{};
    QPointF m_ptFinish{};
    QPointF m_ptSecondaryStart{};
    QPointF m_ptSecondaryFinish{};
    QPointF m_ptCenter{};
    qreal m_dAngle{0};
    GrainlineArrowDirection m_eArrowType{GrainlineArrowDirection::twoWaysUpDown};
    double m_penWidth{1};
    VColorRole m_role;
    QColor m_color{Qt::black};

    auto MainShape() const -> QPainterPath;

    void AllUserModifications(const QPointF &pos);
    void UserRotateAndMove();
    void UserMoveAndResize(const QPointF &pos);

    void UpdatePolyResize();
};

//---------------------------------------------------------------------------------------------------------------------
inline auto VGrainlineItem::GetColor() const -> QColor
{
    return m_color;
}

//---------------------------------------------------------------------------------------------------------------------
inline void VGrainlineItem::SetColor(const QColor &color)
{
    m_color = color;
}

#endif // VGRAINLINEITEM_H