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41 #include "linearlayout.h"
43 #include <QGraphicsWidget>
44 #include <QGraphicsLayoutItem>
46 LinearLayoutAttached::LinearLayoutAttached(QObject *parent)
47 : QObject(parent), m_stretch(1), m_alignment(Qt::AlignTop), m_spacing(0)
51 void LinearLayoutAttached::setStretchFactor(int f)
55 emit stretchChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), m_stretch);
59 void LinearLayoutAttached::setSpacing(int s)
63 emit spacingChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), m_spacing);
67 void LinearLayoutAttached::setAlignment(Qt::Alignment a)
69 if (m_alignment != a) {
71 emit alignmentChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), m_alignment);
75 GraphicsLinearLayoutStretchItemObject::GraphicsLinearLayoutStretchItemObject(QObject *parent)
80 QSizeF GraphicsLinearLayoutStretchItemObject::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
88 GraphicsLinearLayoutObject::GraphicsLinearLayoutObject(QObject *parent)
93 GraphicsLinearLayoutObject::~GraphicsLinearLayoutObject()
97 void GraphicsLinearLayoutObject::insertLayoutItem(int index, QGraphicsLayoutItem *item)
99 insertItem(index, item);
101 if (LinearLayoutAttached *obj = attachedProperties.value(item)) {
102 setStretchFactor(item, obj->stretchFactor());
103 setAlignment(item, obj->alignment());
104 updateSpacing(item, obj->spacing());
105 QObject::connect(obj, SIGNAL(stretchChanged(QGraphicsLayoutItem*,int)),
106 this, SLOT(updateStretch(QGraphicsLayoutItem*,int)));
107 QObject::connect(obj, SIGNAL(alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment)),
108 this, SLOT(updateAlignment(QGraphicsLayoutItem*,Qt::Alignment)));
109 QObject::connect(obj, SIGNAL(spacingChanged(QGraphicsLayoutItem*,int)),
110 this, SLOT(updateSpacing(QGraphicsLayoutItem*,int)));
114 void GraphicsLinearLayoutObject::removeAt(int index)
116 QGraphicsLayoutItem *item = itemAt(index);
118 LinearLayoutAttached *obj = attachedProperties.value(item);
119 obj->disconnect(this);
120 attachedProperties.remove(item);
122 QGraphicsLinearLayout::removeAt(index);
125 void GraphicsLinearLayoutObject::clearChildren()
127 // do not delete the removed items; they will be deleted by the QML engine
132 qreal GraphicsLinearLayoutObject::contentsMargin() const
135 getContentsMargins(&a, &b, &c, &d);
136 if (a == b && a == c && a == d)
141 void GraphicsLinearLayoutObject::setContentsMargin(qreal m)
143 setContentsMargins(m, m, m, m);
146 void GraphicsLinearLayoutObject::updateStretch(QGraphicsLayoutItem *item, int stretch)
148 QGraphicsLinearLayout::setStretchFactor(item, stretch);
151 void GraphicsLinearLayoutObject::updateSpacing(QGraphicsLayoutItem* item, int spacing)
153 for (int i=0; i < count(); i++){
154 if (itemAt(i) == item) {
155 QGraphicsLinearLayout::setItemSpacing(i, spacing);
161 void GraphicsLinearLayoutObject::updateAlignment(QGraphicsLayoutItem *item, Qt::Alignment alignment)
163 QGraphicsLinearLayout::setAlignment(item, alignment);
166 QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> GraphicsLinearLayoutObject::attachedProperties;
167 LinearLayoutAttached *GraphicsLinearLayoutObject::qmlAttachedProperties(QObject *obj)
169 LinearLayoutAttached *rv = new LinearLayoutAttached(obj);
170 if (qobject_cast<QGraphicsLayoutItem*>(obj))
171 attachedProperties.insert(qobject_cast<QGraphicsLayoutItem*>(obj), rv);