CanvasControlPolicy mixin
Optimized implementation of CanvasPolicy.
It enabled pan and zoom of the canvas.
It uses onCanvasScaleStart, onCanvasScaleUpdate, onCanvasScaleEnd, onCanvasPointerSignal. Feel free to override other functions from CanvasPolicy and add them to PolicySet.
- Mixin Applications
Properties
- canUpdateCanvasModel ↔ bool
-
getter/setter pair
- canvasReader ↔ CanvasReader
-
Allows you to read all data from diagram/canvas model.
getter/setter pairinherited
- canvasWriter ↔ CanvasWriter
-
Allows you to change diagram/canvas model data.
getter/setter pairinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- transformPosition ↔ Offset
-
getter/setter pair
- transformScale ↔ double
-
getter/setter pair
Methods
-
disposeAnimationController(
) → void -
getAnimationController(
) → AnimationController? -
initializePolicy(
CanvasReader canvasReader, CanvasWriter canvasWriter) → void -
Initialize policy in DiagramEditorContext.
inherited
-
keepScaleInBounds(
double scale, double canvasScale) → double -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onCanvasPointerSignal(
PointerSignalEvent event) → void -
onCanvasScaleEnd(
ScaleEndDetails details) → void -
onCanvasScaleStart(
ScaleStartDetails details) → void -
onCanvasScaleUpdate(
ScaleUpdateDetails details) → void -
setAnimationController(
AnimationController animationController) → void -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited