myGraphicsRectItem.h 2.15 KB
Newer Older
roangel's avatar
roangel committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
//    Abstract class to represent our reimplementation of QGraphicsRectItem. Will be the base
//    for table and crazyflie zone.
//
//    Copyright (C) 2017  Angel Romero
//
//    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, either version 3 of the License, or
//    (at your option) any later version.
//
//    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.
//
//    You should have received a copy of the GNU General Public License
//    along with this program.  If not, see <http://www.gnu.org/licenses/>.

19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
#ifndef MYGRAPHICSRECTITEM_H
#define MYGRAPHICSRECTITEM_H

#include <QGraphicsRectItem>
#include "cornergrabber.h"

class QGraphicsSceneMouseEvent;
class QPointF;
class QColor;


class myGraphicsRectItem : public QGraphicsRectItem
{
public:
    explicit myGraphicsRectItem(const QRectF & rect, QGraphicsItem * parent = 0);
    void lock();
    void unlock();

37

38
39
40
41
42
43
44
45
46
47
48
public slots:

signals:

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) override;

    virtual void rectSizeChanged() = 0; // pure virtual function, has to be overridden in derived class

49

50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;

private:
    void setCornerPositions();
    bool anyGrabber();
    int checkCornerGrabbers();
    void createGrabbers();
    bool grabbersAreCreated();
    void deleteGrabbers();

    QPen* pen;
    QBrush* brush;
    QRectF* tmp_rect;
    QGraphicsRectItem* tmp_rect_item;
    QPointF* p1;
    QPointF* p2;

    CornerGrabber* _bottomLeft_corner;
    CornerGrabber* _topLeft_corner;
    CornerGrabber* _topRight_corner;
    CornerGrabber* _bottomRight_corner;

    bool _grabbers_created;
    bool resize_mode;
    bool locked;

};

#endif