tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2010 Robert Bieber
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21
22#ifndef RBMOVABLE_H
23#define RBMOVABLE_H
24
25#include <QGraphicsItem>
26
27/*
28 * This is a base class for scene elements that can be moved around and
29 * resized. It adds some basic functionality for showing a border around
30 * selected items and ensuring that they don't get moved out of their parent's
31 * bounding rect, as well as resizing them. It includes one pure virtual
32 * function, saveGeometry(), that is responsible for syncing the changed
33 * geometry back to the parse tree to be code gen'd into the file.
34 */
35
36class RBMovable : public QGraphicsItem
37{
38public:
39 RBMovable(QGraphicsItem* parent);
40 ~RBMovable();
41
42 virtual void paint(QPainter *painter,
43 const QStyleOptionGraphicsItem *option, QWidget *widget);
44 virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
45 virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
46 virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
47
48 virtual QRectF boundingRect() const{ return size; }
49
50protected:
51 virtual QVariant itemChange(GraphicsItemChange change,
52 const QVariant &value);
53 /* Responsible for updating the parse tree */
54 virtual void saveGeometry() = 0;
55
56 QRectF size;
57
58private:
59 static const double handleSize;
60
61 QRectF topLeftHandle();
62 QRectF topRightHandle();
63 QRectF bottomLeftHandle();
64 QRectF bottomRightHandle();
65
66 enum{
67 None,
68 TopLeft,
69 TopRight,
70 BottomLeft,
71 BottomRight
72 } dragMode;
73 QPointF dragStartPos;
74 QRectF dragStartSize;
75 QPointF dragStartClick;
76 double dHeightMin;
77 double dHeightMax;
78 double dWidthMin;
79 double dWidthMax;
80
81};
82
83#endif // RBMOVABLE_H