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-rw-r--r--src/gui/graphicsview/qgraphicsitem.cpp103
-rw-r--r--src/gui/graphicsview/qgraphicsitem.h7
-rw-r--r--src/gui/graphicsview/qgraphicsitem_p.h67
-rw-r--r--src/gui/graphicsview/qgraphicswidget.cpp14
-rw-r--r--src/gui/graphicsview/qgraphicswidget_p.cpp51
-rw-r--r--src/gui/graphicsview/qgraphicswidget_p.h9
6 files changed, 251 insertions, 0 deletions
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index e10c03a..f110a5c 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -5224,6 +5224,8 @@ void QGraphicsItemPrivate::addChild(QGraphicsItem *child)
needSortChildren = 1; // ### maybe 0
child->d_ptr->siblingIndex = children.size();
children.append(child);
+ if (isObject)
+ emit static_cast<QGraphicsObject *>(q_ptr)->childrenChanged();
}
/*!
@@ -5246,6 +5248,8 @@ void QGraphicsItemPrivate::removeChild(QGraphicsItem *child)
// the child is not guaranteed to be at the index after the list is sorted.
// (see ensureSortedChildren()).
child->d_ptr->siblingIndex = -1;
+ if (isObject)
+ emit static_cast<QGraphicsObject *>(q_ptr)->childrenChanged();
}
/*!
@@ -7453,6 +7457,88 @@ void QGraphicsObject::ungrabGesture(Qt::GestureType gesture)
}
}
+void QGraphicsItemPrivate::append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item)
+{
+ QGraphicsItemPrivate::get(item)->setParentItemHelper(static_cast<QGraphicsObject *>(list->object), /*newParentVariant=*/0, /*thisPointerVariant=*/0);
+}
+
+/*!
+ Returns a list of this item's children.
+
+ The items are sorted by stacking order. This takes into account both the
+ items' insertion order and their Z-values.
+
+*/
+QDeclarativeListProperty<QGraphicsObject> QGraphicsItemPrivate::childrenList()
+{
+ Q_Q(QGraphicsItem);
+ if (isObject) {
+ QGraphicsObject *that = static_cast<QGraphicsObject *>(q);
+ return QDeclarativeListProperty<QGraphicsObject>(that, &children, QGraphicsItemPrivate::append);
+ } else {
+ //QGraphicsItem is not supported for this property
+ return QDeclarativeListProperty<QGraphicsObject>();
+ }
+}
+
+/*!
+ \internal
+ Returns the width of the item
+ Reimplemented by QGraphicsWidget
+*/
+qreal QGraphicsItemPrivate::width() const
+{
+ return 0;
+}
+
+/*!
+ \internal
+ Set the width of the item
+ Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::setWidth(qreal w)
+{
+ Q_UNUSED(w);
+}
+
+/*!
+ \internal
+ Reset the width of the item
+ Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::resetWidth()
+{
+}
+
+/*!
+ \internal
+ Returns the height of the item
+ Reimplemented by QGraphicsWidget
+*/
+qreal QGraphicsItemPrivate::height() const
+{
+ return 0;
+}
+
+/*!
+ \internal
+ Set the height of the item
+ Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::setHeight(qreal h)
+{
+ Q_UNUSED(h);
+}
+
+/*!
+ \internal
+ Reset the height of the item
+ Reimplemented by QGraphicsWidget
+*/
+void QGraphicsItemPrivate::resetHeight()
+{
+}
+
/*!
\property QGraphicsObject::parent
\brief the parent of the item
@@ -7639,6 +7725,23 @@ void QGraphicsObject::ungrabGesture(Qt::GestureType gesture)
\sa scale, rotation, QGraphicsItem::transformOriginPoint()
*/
+/*!
+ \fn void QGraphicsObject::widthChanged()
+ \internal
+*/
+
+/*!
+ \fn void QGraphicsObject::heightChanged()
+ \internal
+*/
+
+/*!
+
+ \fn QGraphicsObject::childrenChanged()
+
+ This signal gets emitted whenever the children list changes
+ \internal
+*/
/*!
\class QAbstractGraphicsShapeItem
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index d72833b..5023f60 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -547,6 +547,10 @@ class Q_GUI_EXPORT QGraphicsObject : public QObject, public QGraphicsItem
Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged)
Q_PROPERTY(qreal scale READ scale WRITE setScale NOTIFY scaleChanged)
Q_PROPERTY(QPointF transformOriginPoint READ transformOriginPoint WRITE setTransformOriginPoint)
+ Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), QDeclarativeListProperty<QGraphicsObject> children READ childrenList DESIGNABLE false NOTIFY childrenChanged)
+ Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal width READ width WRITE setWidth NOTIFY widthChanged RESET resetWidth FINAL)
+ Q_PRIVATE_PROPERTY(QGraphicsItem::d_func(), qreal height READ height WRITE setHeight NOTIFY heightChanged RESET resetHeight FINAL)
+ Q_CLASSINFO("DefaultProperty", "children")
Q_INTERFACES(QGraphicsItem)
public:
QGraphicsObject(QGraphicsItem *parent = 0);
@@ -571,6 +575,9 @@ Q_SIGNALS:
void zChanged();
void rotationChanged();
void scaleChanged();
+ void childrenChanged();
+ void widthChanged();
+ void heightChanged();
protected:
QGraphicsObject(QGraphicsItemPrivate &dd, QGraphicsItem *parent, QGraphicsScene *scene);
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index ea04e0b..669ae1b 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -71,6 +71,62 @@ QT_BEGIN_NAMESPACE
class QGraphicsItemPrivate;
+#ifndef QDECLARATIVELISTPROPERTY
+#define QDECLARATIVELISTPROPERTY
+template<typename T>
+struct QDeclarativeListProperty {
+ typedef void (*AppendFunction)(QDeclarativeListProperty<T> *, T*);
+ typedef int (*CountFunction)(QDeclarativeListProperty<T> *);
+ typedef T *(*AtFunction)(QDeclarativeListProperty<T> *, int);
+ typedef void (*ClearFunction)(QDeclarativeListProperty<T> *);
+
+ QDeclarativeListProperty()
+ : object(0), data(0), append(0), count(0), at(0), clear(0), dummy1(0), dummy2(0) {}
+ QDeclarativeListProperty(QObject *o, QList<T *> &list)
+ : object(o), data(&list), append(qlist_append), count(qlist_count), at(qlist_at),
+ clear(qlist_clear), dummy1(0), dummy2(0) {}
+ QDeclarativeListProperty(QObject *o, void *d, AppendFunction a, CountFunction c = 0, AtFunction t = 0,
+ ClearFunction r = 0)
+ : object(o), data(d), append(a), count(c), at(t), clear(r), dummy1(0), dummy2(0) {}
+
+ bool operator==(const QDeclarativeListProperty &o) const {
+ return object == o.object &&
+ data == o.data &&
+ append == o.append &&
+ count == o.count &&
+ at == o.at &&
+ clear == o.clear;
+ }
+
+ QObject *object;
+ void *data;
+
+ AppendFunction append;
+
+ CountFunction count;
+ AtFunction at;
+
+ ClearFunction clear;
+
+ void *dummy1;
+ void *dummy2;
+
+private:
+ static void qlist_append(QDeclarativeListProperty *p, T *v) {
+ ((QList<T *> *)p->data)->append(v);
+ }
+ static int qlist_count(QDeclarativeListProperty *p) {
+ return ((QList<T *> *)p->data)->count();
+ }
+ static T *qlist_at(QDeclarativeListProperty *p, int idx) {
+ return ((QList<T *> *)p->data)->at(idx);
+ }
+ static void qlist_clear(QDeclarativeListProperty *p) {
+ return ((QList<T *> *)p->data)->clear();
+ }
+};
+#endif
+
class QGraphicsItemCache
{
public:
@@ -237,6 +293,7 @@ public:
void resolveDepth();
void addChild(QGraphicsItem *child);
void removeChild(QGraphicsItem *child);
+ QDeclarativeListProperty<QGraphicsObject> childrenList();
void setParentItemHelper(QGraphicsItem *parent, const QVariant *newParentVariant,
const QVariant *thisPointerVariant);
void childrenBoundingRectHelper(QTransform *x, QRectF *rect);
@@ -423,11 +480,21 @@ public:
inline QTransform transformToParent() const;
inline void ensureSortedChildren();
+ static void append(QDeclarativeListProperty<QGraphicsObject> *list, QGraphicsObject *item);
static inline bool insertionOrder(QGraphicsItem *a, QGraphicsItem *b);
void ensureSequentialSiblingIndex();
inline void sendScenePosChange();
virtual void siblingOrderChange();
+ // Private Properties
+ virtual qreal width() const;
+ virtual void setWidth(qreal);
+ virtual void resetWidth();
+
+ virtual qreal height() const;
+ virtual void setHeight(qreal);
+ virtual void resetHeight();
+
QRectF childrenBoundingRect;
QRectF needsRepaint;
QMap<QWidget *, QRect> paintedViewBoundingRects;
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index f42fe4f..a091347 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -324,6 +324,14 @@ void QGraphicsWidget::resize(const QSizeF &size)
*/
/*!
+
+ \fn QGraphicsWidget::geometryChanged()
+
+ This signal gets emitted whenever the geometry of the item changes
+ \internal
+*/
+
+/*!
\property QGraphicsWidget::geometry
\brief the geometry of the widget
@@ -391,6 +399,10 @@ void QGraphicsWidget::setGeometry(const QRectF &rect)
QGraphicsSceneResizeEvent re;
re.setOldSize(oldSize);
re.setNewSize(newGeom.size());
+ if (oldSize.width() != newGeom.size().width())
+ emit widthChanged();
+ if (oldSize.height() != newGeom.size().height())
+ emit heightChanged();
QApplication::sendEvent(this, &re);
}
}
@@ -2322,5 +2334,7 @@ void QGraphicsWidget::dumpFocusChain()
#endif
QT_END_NAMESPACE
+
+#include "moc_qgraphicswidget.cpp"
#endif //QT_NO_GRAPHICSVIEW
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp
index 1835c74..6e397b6 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.cpp
+++ b/src/gui/graphicsview/qgraphicswidget_p.cpp
@@ -44,6 +44,7 @@
#ifndef QT_NO_GRAPHICSVIEW
#include <QtCore/qdebug.h>
+#include <QtCore/qnumeric.h>
#include "qgraphicswidget_p.h"
#include "qgraphicslayout.h"
#include "qgraphicsscene_p.h"
@@ -825,6 +826,56 @@ void QGraphicsWidgetPrivate::setLayout_helper(QGraphicsLayout *l)
}
}
+qreal QGraphicsWidgetPrivate::width() const
+{
+ Q_Q(const QGraphicsWidget);
+ return q->geometry().width();
+}
+
+void QGraphicsWidgetPrivate::setWidth(qreal w)
+{
+ if (qIsNaN(w))
+ return;
+ Q_Q(QGraphicsWidget);
+ if (q->geometry().width() == w)
+ return;
+
+ QRectF oldGeom = q->geometry();
+
+ q->setGeometry(QRectF(q->x(), q->y(), w, height()));
+}
+
+void QGraphicsWidgetPrivate::resetWidth()
+{
+ Q_Q(QGraphicsWidget);
+ q->setGeometry(QRectF(q->x(), q->y(), 0, height()));
+}
+
+qreal QGraphicsWidgetPrivate::height() const
+{
+ Q_Q(const QGraphicsWidget);
+ return q->geometry().height();
+}
+
+void QGraphicsWidgetPrivate::setHeight(qreal h)
+{
+ if (qIsNaN(h))
+ return;
+ Q_Q(QGraphicsWidget);
+ if (q->geometry().height() == h)
+ return;
+
+ QRectF oldGeom = q->geometry();
+
+ q->setGeometry(QRectF(q->x(), q->y(), width(), h));
+}
+
+void QGraphicsWidgetPrivate::resetHeight()
+{
+ Q_Q(QGraphicsWidget);
+ q->setGeometry(QRectF(q->x(), q->y(), width(), 0));
+}
+
QT_END_NAMESPACE
#endif //QT_NO_GRAPHICSVIEW
diff --git a/src/gui/graphicsview/qgraphicswidget_p.h b/src/gui/graphicsview/qgraphicswidget_p.h
index 2c5b3bf..f34a755 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.h
+++ b/src/gui/graphicsview/qgraphicswidget_p.h
@@ -130,6 +130,15 @@ public:
void windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event);
bool hasDecoration() const;
+ // Private Properties
+ qreal width() const;
+ void setWidth(qreal);
+ void resetWidth();
+
+ qreal height() const;
+ void setHeight(qreal);
+ void resetHeight();
+
// State
inline int attributeToBitIndex(Qt::WidgetAttribute att) const
{
generated by cgit v0.12 at 2024-11-30 06:11:48 (GMT)