1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "graphicswidgets_p.h"
QT_BEGIN_NAMESPACE
//### the single (default) property could alternatively be added to graphics view directly
class QGraphicsViewDeclarativeUI : public QObject
{
Q_OBJECT
Q_PROPERTY(QGraphicsScene *scene READ scene WRITE setScene)
Q_CLASSINFO("DefaultProperty", "scene")
public:
QGraphicsViewDeclarativeUI(QObject *other) : QObject(other) {}
QGraphicsScene *scene() const { return static_cast<QGraphicsView *>(parent())->scene(); }
void setScene(QGraphicsScene *scene)
{
static_cast<QGraphicsView *>(parent())->setScene(scene);
}
};
class QGraphicsSceneDeclarativeUI : public QObject
{
Q_OBJECT
Q_PROPERTY(QmlList<QObject *> *children READ children)
Q_CLASSINFO("DefaultProperty", "children")
public:
QGraphicsSceneDeclarativeUI(QObject *other) : QObject(other), _children(other) {}
QmlList<QObject *> *children() { return &_children; }
private:
class Children : public QmlConcreteList<QObject *>
{
public:
Children(QObject *scene) : q(scene) {}
virtual void append(QObject *o)
{
insert(-1, o);
}
virtual void clear()
{
for (int i = 0; i < count(); ++i)
if (QGraphicsWidget *w = qobject_cast<QGraphicsWidget *>(at(i)))
static_cast<QGraphicsScene *>(q)->removeItem(w);
QmlConcreteList<QObject *>::clear();
}
virtual void removeAt(int i)
{
if (QGraphicsWidget *w = qobject_cast<QGraphicsWidget *>(at(i)))
static_cast<QGraphicsScene *>(q)->removeItem(w);
QmlConcreteList<QObject *>::removeAt(i);
}
virtual void insert(int i, QObject *o)
{
QmlConcreteList<QObject *>::insert(i, o);
//XXX are there any cases when insertion should be different from appension?
if (QGraphicsWidget *w = qobject_cast<QGraphicsWidget *>(o))
static_cast<QGraphicsScene *>(q)->addItem(w);
//else if (QWidget *w = qobject_cast<QWidget *>(o))
// static_cast<QGraphicsScene *>(q)->addWidget(w);
//else
// qWarning() << "Can't add" << o << "to a QGraphicsScene";
}
private:
QObject *q;
};
Children _children;
};
class QGraphicsWidgetDeclarativeUI : public QObject
{
Q_OBJECT
Q_PROPERTY(QmlList<QObject *> *data READ data)
Q_PROPERTY(QmlList<QGraphicsItem *> *children READ children)
Q_PROPERTY(QGraphicsLayout *layout READ layout WRITE setLayout)
Q_CLASSINFO("DefaultProperty", "children")
public:
QGraphicsWidgetDeclarativeUI(QObject *other) : QObject(other), _widgets(this) {}
QmlList<QObject *> *data() { return &_data; }
QmlList<QGraphicsItem *> *children() { return &_widgets; }
QGraphicsLayout *layout() const { return static_cast<QGraphicsWidget *>(parent())->layout(); }
void setLayout(QGraphicsLayout *lo)
{
static_cast<QGraphicsWidget *>(parent())->setLayout(lo);
}
private:
friend class WidgetList;
void setItemParent(QGraphicsItem *wid)
{
wid->setParentItem(static_cast<QGraphicsWidget *>(parent()));
}
//###
void clearWidget()
{
}
class WidgetList : public QmlConcreteList<QGraphicsItem *>
{
public:
WidgetList(QGraphicsWidgetDeclarativeUI *o)
: obj(o) {}
virtual void append(QGraphicsItem *w) { QmlConcreteList<QGraphicsItem *>::append(w); obj->setItemParent(w); }
virtual void clear() { QmlConcreteList<QGraphicsItem *>::clear(); obj->clearWidget(); }
virtual void removeAt(int i) { QmlConcreteList<QGraphicsItem *>::removeAt(i); } //XXX
virtual void insert(int i, QGraphicsItem *item) { QmlConcreteList<QGraphicsItem *>::insert(i, item); obj->setItemParent(item); }
private:
QGraphicsWidgetDeclarativeUI *obj;
};
WidgetList _widgets;
QmlConcreteList<QObject *> _data;
};
QML_DEFINE_EXTENDED_TYPE(Qt,4,6,QGraphicsView,QGraphicsView,QGraphicsViewDeclarativeUI)
QML_DEFINE_EXTENDED_TYPE(Qt,4,6,QGraphicsScene,QGraphicsScene,QGraphicsSceneDeclarativeUI)
QML_DEFINE_EXTENDED_TYPE(Qt,4,6,QGraphicsWidget,QGraphicsWidget,QGraphicsWidgetDeclarativeUI)
QML_DEFINE_INTERFACE(QGraphicsItem)
QT_END_NAMESPACE
#include "graphicswidgets.moc"
|
