ExtendedInteractiveViewer class
A widget that provides interactive viewing capabilities with zoom and pan functionality.
The ExtendedInteractiveViewer wraps a given child widget and allows users to interact with it through zooming and panning. The interactivity can be enabled or disabled, and the zoom levels can be controlled with minScale and maxScale.
Example usage:
ExtendedInteractiveViewer(
enableZoom: true,
enableInteraction: true,
minScale: 0.5,
maxScale: 3.0,
child: YourWidget(),
);
The ExtendedInteractiveViewer requires the following parameters:
- child: The widget to be displayed and interacted with.
- enableZoom: A boolean indicating whether zoom functionality is enabled.
- minScale: The minimum scale factor for zooming.
- maxScale: The maximum scale factor for zooming.
Optionally, you can control the interactivity using enableInteraction.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ExtendedInteractiveViewer
Constructors
- ExtendedInteractiveViewer({Key? key, required Widget child, bool enableInteraction = true, required EdgeInsets boundaryMargin, required bool enableZoom, required double minScale, required double maxScale, required GestureScaleStartCallback? onInteractionStart, required GestureScaleUpdateCallback? onInteractionUpdate, required GestureScaleEndCallback? onInteractionEnd})
-
Creates an ExtendedInteractiveViewer with the given parameters.
const
Properties
- boundaryMargin → EdgeInsets
-
A margin for the visible boundaries of the child.
final
- child → Widget
-
The child widget to be displayed and interacted with.
final
- enableInteraction → bool
-
Indicates whether user interactions such as panning and zooming are
enabled.
final
- enableZoom → bool
-
Indicates whether the editor supports zoom functionality.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- maxScale → double
-
The maximum scale factor for zooming.
final
- minScale → double
-
The minimum scale factor for zooming.
final
- onInteractionEnd → GestureScaleEndCallback?
-
Called when the user ends a pan or scale gesture on the widget.
final
- onInteractionStart → GestureScaleStartCallback?
-
Called when the user begins a pan or scale gesture on the widget.
final
- onInteractionUpdate → GestureScaleUpdateCallback?
-
Called when the user updates a pan or scale gesture on the widget.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< ExtendedInteractiveViewer> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited