153 lines
5.6 KiB
C++
153 lines
5.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef LINEARLAYOUT_H
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#define LINEARLAYOUT_H
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#include <QtDeclarative/qdeclarative.h>
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#include <QGraphicsLinearLayout>
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#include <QGraphicsLayoutItem>
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#include <QDeclarativeListProperty>
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class GraphicsLinearLayoutStretchItemObject : public QObject, public QGraphicsLayoutItem
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{
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Q_OBJECT
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Q_INTERFACES(QGraphicsLayoutItem)
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public:
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GraphicsLinearLayoutStretchItemObject(QObject *parent = 0);
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virtual QSizeF sizeHint(Qt::SizeHint, const QSizeF &) const;
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};
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class LinearLayoutAttached;
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class GraphicsLinearLayoutObject : public QObject, public QGraphicsLinearLayout
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{
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Q_OBJECT
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Q_INTERFACES(QGraphicsLayout QGraphicsLayoutItem)
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Q_PROPERTY(QDeclarativeListProperty<QGraphicsLayoutItem> children READ children)
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Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
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Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing)
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Q_PROPERTY(qreal contentsMargin READ contentsMargin WRITE setContentsMargin)
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Q_CLASSINFO("DefaultProperty", "children")
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public:
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GraphicsLinearLayoutObject(QObject * = 0);
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~GraphicsLinearLayoutObject();
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QDeclarativeListProperty<QGraphicsLayoutItem> children() { return QDeclarativeListProperty<QGraphicsLayoutItem>(this, 0, children_append, children_count, children_at, children_clear); }
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qreal contentsMargin() const;
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void setContentsMargin(qreal);
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void removeAt(int index);
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static LinearLayoutAttached *qmlAttachedProperties(QObject *);
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private slots:
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void updateStretch(QGraphicsLayoutItem*,int);
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void updateSpacing(QGraphicsLayoutItem*,int);
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void updateAlignment(QGraphicsLayoutItem*,Qt::Alignment);
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private:
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friend class LinearLayoutAttached;
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void clearChildren();
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void insertLayoutItem(int, QGraphicsLayoutItem *);
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static void children_append(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, QGraphicsLayoutItem *item) {
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static_cast<GraphicsLinearLayoutObject*>(prop->object)->insertLayoutItem(-1, item);
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}
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static void children_clear(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
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static_cast<GraphicsLinearLayoutObject*>(prop->object)->clearChildren();
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}
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static int children_count(QDeclarativeListProperty<QGraphicsLayoutItem> *prop) {
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return static_cast<GraphicsLinearLayoutObject*>(prop->object)->count();
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}
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static QGraphicsLayoutItem *children_at(QDeclarativeListProperty<QGraphicsLayoutItem> *prop, int index) {
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return static_cast<GraphicsLinearLayoutObject*>(prop->object)->itemAt(index);
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}
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static QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> attachedProperties;
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};
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class LinearLayoutAttached : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(int stretchFactor READ stretchFactor WRITE setStretchFactor NOTIFY stretchChanged)
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Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY alignmentChanged)
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Q_PROPERTY(int spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
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public:
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LinearLayoutAttached(QObject *parent);
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int stretchFactor() const { return m_stretch; }
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void setStretchFactor(int f);
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Qt::Alignment alignment() const { return m_alignment; }
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void setAlignment(Qt::Alignment a);
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int spacing() const { return m_spacing; }
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void setSpacing(int s);
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signals:
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void stretchChanged(QGraphicsLayoutItem*, int);
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void alignmentChanged(QGraphicsLayoutItem*, Qt::Alignment);
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void spacingChanged(QGraphicsLayoutItem*, int);
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private:
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int m_stretch;
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Qt::Alignment m_alignment;
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int m_spacing;
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};
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QML_DECLARE_TYPE(GraphicsLinearLayoutStretchItemObject)
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QML_DECLARE_TYPE(GraphicsLinearLayoutObject)
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QML_DECLARE_TYPEINFO(GraphicsLinearLayoutObject, QML_HAS_ATTACHED_PROPERTIES)
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#endif
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