ZoomGesture Class - Fuse Documentation

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A TransformGesture that provides zooming.

This is triggered by dragging two pointers (fingers) over the device. Either moving towards each other (pinching) to reduce the zoom, or moving away from each other to increase the zoom.

For testing on desktop this can be simulated by holding down Ctrl, pressing the mouse button, and moving cursor up or down. Note that this desktop feature is for testing, so the specifics of how this works should not be relied upon.

Example

Shows a red circle we can use two fingers to zoom in or out.

<Panel>
    <InteractiveTransform ux:Name="transform" />
    <ZoomGesture Target="transform" />
    <Panel>
        <Text Value="Resize me" Color="White" FontSize="25" Alignment="Center" />
        <Circle Width="350" Height="350" Color="Red" />
    </Panel>
</Panel>

Location

Namespace: Fuse.Gestures
Package: Fuse.Gestures 2.9.1

Show Uno properties and methods

Interface of ZoomGesture

Maximum : float ux

The maximum zoom factor that will be set by this gesture.

Minimum : float ux

The minimum zoom factor that will be set by this gesture.

ZoomGesture(InteractiveTransform) Constructor uno

Inherited from TransformGesture

CheckNeedUpdate uno

Target : InteractiveTransform uno

Inherited from Node

Add(Binding) uno

Bindings : IList of Binding ux

The list of bindings belonging to this node.

ContextParent : Node uno

The context parent is the semantic parent of this node. It is where non-UI structure should be resolved, like looking for the DataContext, a Navigation, or other semantic item.

FindByType<T> : T uno

FindNodeByName(Selector, Predicate<Node> (Node)) : Node uno

Finds the first node with a given name that satisfies the given acceptor. The serach algorithm works as follows: Nodes in the subtree are matched first, then it matches the nodes in the subtrees ofthe ancestor nodes by turn all the way to the root. If no matching node is found, the function returns null.

GetNearestAncestorOfType<T> : T uno

Insert(int, Binding) uno

IsRootingCompleted : bool uno

Whether rooting for this node is completed. Returns false if unrooting has started.

IsRootingStarted : bool uno

Whether rooting of this node has started. Note that even if this property returns true, rooting may not yet be completed for the node. See also IsRootingCompleted.