DraggableTextOverlay class
A text overlay on the preview canvas that can be moved with one finger, pinched to scale and rotate with two, or transformed with the corner handle once selected (CapCut style).
The parent places this widget with its centre at the overlay position; all callbacks report values in parentSize pixels / radians / scale.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- DraggableTextOverlay
Constructors
- DraggableTextOverlay({Key? key, required VideoTextOverlay textOverlay, required Size parentSize, required dynamic onUpdatePosition(double x, double y), required dynamic onUpdateSize(double scale), required dynamic onUpdateRotation(double scale), bool isSelected = false, double pixelScale = 1.0, VoidCallback? onTap, VoidCallback? onDelete, VoidCallback? onEdit, VoidCallback? onInteractionEnd})
-
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- isSelected → bool
-
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onDelete → VoidCallback?
-
final
- onEdit → VoidCallback?
-
final
- onInteractionEnd → VoidCallback?
-
A move/scale/rotate gesture finished (commit it to history).
final
- onTap → VoidCallback?
-
final
- onUpdatePosition → dynamic Function(double x, double y)
-
Called with the overlay's new centre in parentSize pixels.
final
- onUpdateRotation → dynamic Function(double scale)
-
final
- onUpdateSize → dynamic Function(double scale)
-
final
- parentSize → Size
-
Size of the canvas this overlay is positioned in, used to convert the
normalized VideoTextOverlay.x/VideoTextOverlay.y into pixels.
final
- pixelScale → double
-
Font pixels per VideoTextOverlay.fontSize unit on this canvas.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- textOverlay → VideoTextOverlay
-
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< DraggableTextOverlay> -
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