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
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef LINEARLAYOUT_H
#define LINEARLAYOUT_H
#include <qdeclarative.h>
#include <QGraphicsLinearLayout>
#include <QGraphicsLayoutItem>
class GraphicsLinearLayoutStretchItemObject : public QObject, public QGraphicsLayoutItem
{
Q_OBJECT
Q_INTERFACES(QGraphicsLayoutItem)
public:
GraphicsLinearLayoutStretchItemObject(QObject *parent = 0);
virtual QSizeF sizeHint(Qt::SizeHint, const QSizeF &) const;
};
class LinearLayoutAttached;
class GraphicsLinearLayoutObject : public QObject, public QGraphicsLinearLayout
{
Q_OBJECT
Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem)
Q_PROPERTY(QDeclarativeListProperty<QGraphicsLayoutItem> children READ children)
Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing)
Q_PROPERTY(qreal contentsMargin READ contentsMargin WRITE setContentsMargin)
Q_CLASSINFO("DefaultProperty", "children")
public:
GraphicsLinearLayoutObject(QObject * = 0);
~GraphicsLinearLayoutObject();
QDeclarativeListProperty<QGraphicsLayoutItem> children() { return QDeclarativeListProperty<QGraphicsLayoutItem>(this, 0, children_append, children_count, children_at, children_clear); }
qreal contentsMargin() const;
void setContentsMargin(qreal);
void removeAt(int index);
static LinearLayoutAttached *qmlAttachedProperties(QObject *);
private slots:
void updateStretch(QGraphicsLayoutItem*,int);
void updateSpacing(QGraphicsLayoutItem*,int);
void updateAlignment(QGraphicsLayoutItem*,Qt::Alignment);
private:
friend class LinearLayoutAttached;
void clearChildren();
void insertLayoutItem(int, QGraphicsLayoutItem *);
static void children_append(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, QGraphicsLayoutItem *item) {
static_cast<GraphicsLinearLayoutObject*>(prop->object)->insertLayoutItem(-1, item);
}
static void children_clear(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
static_cast<GraphicsLinearLayoutObject*>(prop->object)->clearChildren();
}
static int children_count(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
return static_cast<GraphicsLinearLayoutObject*>(prop->object)->count();
}
static QGraphicsLayoutItem *children_at(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, int index) {
return static_cast<GraphicsLinearLayoutObject*>(prop->object)->itemAt(index);
}
static QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> attachedProperties;
};
class LinearLayoutAttached : public QObject
{
Q_OBJECT
Q_PROPERTY(int stretchFactor READ stretchFactor WRITE setStretchFactor NOTIFY stretchChanged)
Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY alignmentChanged)
Q_PROPERTY(int spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
public:
LinearLayoutAttached(QObject *parent);
int stretchFactor() const { return m_stretch; }
void setStretchFactor(int f);
Qt::Alignment alignment() const { return m_alignment; }
void setAlignment(Qt::Alignment a);
int spacing() const { return m_spacing; }
void setSpacing(int s);
signals:
void stretchChanged(QGraphicsLayoutItem*, int);
void alignmentChanged(QGraphicsLayoutItem*, Qt::Alignment);
void spacingChanged(QGraphicsLayoutItem*, int);
private:
int m_stretch;
Qt::Alignment m_alignment;
int m_spacing;
};
QML_DECLARE_INTERFACE(QGraphicsLayoutItem)
QML_DECLARE_INTERFACE(QGraphicsLayout)
QML_DECLARE_TYPE(GraphicsLinearLayoutStretchItemObject)
QML_DECLARE_TYPE(GraphicsLinearLayoutObject)
QML_DECLARE_TYPEINFO(GraphicsLinearLayoutObject, QML_HAS_ATTACHED_PROPERTIES)
#endif
|
