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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/****************************************************************************
**
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLGRAPHICSLAYOUTS_H
#define QMLGRAPHICSLAYOUTS_H
#include "qmlgraphicsitem.h"
#include "../util/qmlstate_p.h"
#include <private/qpodvector_p.h>
#include <QtCore/QObject>
#include <QtCore/QString>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
class QmlGraphicsBasePositionerPrivate;
class Q_DECLARATIVE_EXPORT QmlGraphicsBasePositioner : public QmlGraphicsItem
{
Q_OBJECT
Q_PROPERTY(int spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
Q_PROPERTY(QmlTransition *move READ move WRITE setMove)
Q_PROPERTY(QmlTransition *add READ add WRITE setAdd)
public:
enum PositionerType { None = 0x0, Horizontal = 0x1, Vertical = 0x2, Both = 0x3 };
QmlGraphicsBasePositioner(PositionerType, QmlGraphicsItem *parent);
~QmlGraphicsBasePositioner();
int spacing() const;
void setSpacing(int);
QmlTransition *move() const;
void setMove(QmlTransition *);
QmlTransition *add() const;
void setAdd(QmlTransition *);
protected:
QmlGraphicsBasePositioner(QmlGraphicsBasePositionerPrivate &dd, PositionerType at, QmlGraphicsItem *parent);
virtual void componentComplete();
virtual QVariant itemChange(GraphicsItemChange, const QVariant &);
void finishApplyTransitions();
Q_SIGNALS:
void spacingChanged();
protected Q_SLOTS:
virtual void doPositioning()=0;
void prePositioning();
protected:
struct PositionedItem {
PositionedItem(QmlGraphicsItem *i) : item(i), isNew(false), isVisible(true) {}
bool operator==(const PositionedItem &other) const { return other.item == item; }
QmlGraphicsItem *item;
bool isNew;
bool isVisible;
};
QPODVector<PositionedItem,8> positionedItems;
void positionX(int,const PositionedItem &target);
void positionY(int,const PositionedItem &target);
private:
Q_DISABLE_COPY(QmlGraphicsBasePositioner)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QmlGraphicsBasePositioner)
};
class Q_DECLARATIVE_EXPORT QmlGraphicsColumn : public QmlGraphicsBasePositioner
{
Q_OBJECT
public:
QmlGraphicsColumn(QmlGraphicsItem *parent=0);
protected Q_SLOTS:
virtual void doPositioning();
private:
Q_DISABLE_COPY(QmlGraphicsColumn)
};
class Q_DECLARATIVE_EXPORT QmlGraphicsRow: public QmlGraphicsBasePositioner
{
Q_OBJECT
public:
QmlGraphicsRow(QmlGraphicsItem *parent=0);
protected Q_SLOTS:
virtual void doPositioning();
private:
Q_DISABLE_COPY(QmlGraphicsRow)
};
class Q_DECLARATIVE_EXPORT QmlGraphicsGrid : public QmlGraphicsBasePositioner
{
Q_OBJECT
Q_PROPERTY(int rows READ rows WRITE setRows)
Q_PROPERTY(int columns READ columns WRITE setcolumns)
public:
QmlGraphicsGrid(QmlGraphicsItem *parent=0);
int rows() const {return _rows;}
void setRows(const int rows){_rows = rows;}
int columns() const {return _columns;}
void setcolumns(const int columns){_columns = columns;}
protected Q_SLOTS:
virtual void doPositioning();
private:
int _rows;
int _columns;
Q_DISABLE_COPY(QmlGraphicsGrid)
};
class QmlGraphicsFlowPrivate;
class Q_DECLARATIVE_EXPORT QmlGraphicsFlow: public QmlGraphicsBasePositioner
{
Q_OBJECT
Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged)
public:
QmlGraphicsFlow(QmlGraphicsItem *parent=0);
Q_ENUMS(Flow)
enum Flow { LeftToRight, TopToBottom };
Flow flow() const;
void setFlow(Flow);
Q_SIGNALS:
void flowChanged();
protected Q_SLOTS:
virtual void doPositioning();
protected:
QmlGraphicsFlow(QmlGraphicsFlowPrivate &dd, QmlGraphicsItem *parent);
private:
Q_DISABLE_COPY(QmlGraphicsFlow)
Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QmlGraphicsFlow)
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QmlGraphicsColumn)
QML_DECLARE_TYPE(QmlGraphicsRow)
QML_DECLARE_TYPE(QmlGraphicsGrid)
QML_DECLARE_TYPE(QmlGraphicsFlow)
QT_END_HEADER
#endif
|
