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create/src/Mod/TechDraw/Gui/QGILeaderLine.h

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/***************************************************************************
* Copyright (c) 2019 WandererFan <wandererfan@gmail.com> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef DRAWINGGUI_QGRAPHICSITEMLEADERLINE_H
#define DRAWINGGUI_QGRAPHICSITEMLEADERLINE_H
#include <Mod/TechDraw/TechDrawGlobal.h>
#include <QColor>
#include <QGraphicsItem>
#include <QObject>
#include <QPainterPath>
#include <QPointF>
#include <QStyleOptionGraphicsItem>
#include <Base/Vector3D.h>
#include "QGIView.h"
namespace TechDraw {
class DrawLeaderLine;
class DrawView;
}
namespace TechDrawGui
{
class QGIPrimPath;
class QGIArrow;
class QGEPath;
//*******************************************************************
class TechDrawGuiExport QGILeaderLine : public QGIView
{
Q_OBJECT
public:
enum {Type = QGraphicsItem::UserType + 232};
explicit QGILeaderLine();
~QGILeaderLine() = default;
int type() const override { return Type;}
void paint( QPainter * painter,
const QStyleOptionGraphicsItem * option,
QWidget * widget = nullptr ) override;
QRectF boundingRect() const override;
void drawBorder() override;
void updateView(bool update = false) override;
virtual TechDraw::DrawLeaderLine* getFeature();
void startPathEdit();
void setArrows(std::vector<QPointF> pathPoints);
void abandonEdit();
void closeEdit();
double getLineWidth();
double getEdgeFuzz() const;
void mousePressEvent(QGraphicsSceneMouseEvent * event) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent * event) override;
void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;
void setPrettyNormal();
void setPrettyPre();
void setPrettySel();
void setLeaderFeature(TechDraw::DrawLeaderLine* feat);
public Q_SLOTS:
void onLineEditFinished(QPointF tipDisplace, std::vector<QPointF> points); //QGEPath is finished editing points
void onSourceChange(TechDraw::DrawView* newParent) override;
Q_SIGNALS:
void editComplete(); //tell caller that edit session is finished
protected:
void draw() override;
QPainterPath makeLeaderPath(std::vector<QPointF> qPoints);
std::vector<QPointF> getWayPointsFromFeature();
QPointF getAttachFromFeature();
QVariant itemChange( GraphicsItemChange change,
const QVariant &value ) override;
void saveState();
void restoreState();
QColor prefNormalColor();
void setNormalColorAll();
private:
std::vector<QPointF> m_pathPoints;
QGraphicsItem* m_parentItem;
QGIPrimPath* m_line; //actual leader line
QColor m_lineColor;
Qt::PenStyle m_lineStyle;
QGIArrow* m_arrow1;
QGIArrow* m_arrow2;
QGEPath* m_editPath; //line editor
QColor m_editPathColor;
bool m_hasHover;
double m_saveX;
double m_saveY;
std::vector<Base::Vector3d> m_savePoints;
bool m_blockDraw; //prevent redraws while updating.
};
}
#endif // DRAWINGGUI_QGRAPHICSITEMLEADERLINE_H