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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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 Nokia Corporation 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
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