Compatibility Members for QGraphicsItem
The following class members are part of the Qt compatibility layer. We advise against using them in new code.
Public Functions
bool | acceptsHoverEvents() const |
QList<QGraphicsItem *> | children() const |
void | rotate(qreal angle) |
void | scale(qreal sx, qreal sy) |
void | setAcceptsHoverEvents(bool enabled) |
void | shear(qreal sh, qreal sv) |
void | translate(qreal dx, qreal dy) |
Member Function Documentation
bool QGraphicsItem::acceptsHoverEvents() const
Call acceptHoverEvents() instead.
See also setAcceptsHoverEvents().
QList<QGraphicsItem *> QGraphicsItem::children() const
Use childItems() instead.
See also setParentItem().
void QGraphicsItem::rotate(qreal angle)
Use
setRotation(rotation() + angle);
instead.
Rotates the current item transformation angle degrees clockwise around its origin. To translate around an arbitrary point (x, y), you need to combine translation and rotation with setTransform().
Example:
// Rotate an item 45 degrees around (0, 0). item->rotate(45); // Rotate an item 45 degrees around (x, y). item->setTransform(QTransform().translate(x, y).rotate(45).translate(-x, -y));
See also setTransform(), transform(), scale(), shear(), and translate().
void QGraphicsItem::scale(qreal sx, qreal sy)
Use
setTransform(QTransform::fromScale(sx, sy), true);
instead.
Scales the current item transformation by (sx, sy) around its origin. To scale from an arbitrary point (x, y), you need to combine translation and scaling with setTransform().
Example:
// Scale an item by 3x2 from its origin item->scale(3, 2); // Scale an item by 3x2 from (x, y) item->setTransform(QTransform().translate(x, y).scale(3, 2).translate(-x, -y));
See also setTransform() and transform().
void QGraphicsItem::setAcceptsHoverEvents(bool enabled)
Use setAcceptHoverEvents(enabled) instead.
See also acceptsHoverEvents().
void QGraphicsItem::shear(qreal sh, qreal sv)
Use
setTransform(QTransform().shear(sh, sv), true);
instead.
Shears the current item transformation by (sh, sv).
See also setTransform() and transform().
void QGraphicsItem::translate(qreal dx, qreal dy)
Use setPos() or setTransformOriginPoint() instead. For identical behavior, use
setTransform(QTransform::fromTranslate(dx, dy), true);
Translates the current item transformation by (dx, dy).
If all you want is to move an item, you should call moveBy() or setPos() instead; this function changes the item's translation, which is conceptually separate from its position.
See also setTransform() and transform().