Thumbnail class
Thumbnail widget
dataResolver can be defined as dataResolver: () => null, but in this case custom creation
strategies in Thumbnailer._generationStrategies has to be aware of null value
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- Thumbnail
Constructors
- Thumbnail({required String mimeType, required double widgetSize, DataResolvingFunction? dataResolver, Key? key, int? dataSize, String? name, WidgetDecoration? decoration, bool? onlyIcon, bool? useWaterMark, bool? useWrapper, bool? onlyName, Widget errorBuilder(BuildContext, Exception error)?})
-
constructor
const
Properties
- dataResolver → DataResolvingFunction?
-
Function which returns Uint8List representation of used file
final
- dataSize → int?
-
Size of used file
final
- decoration → WidgetDecoration?
-
If non-null, the style to use for this thumbnail.
final
- errorBuilder → (Widget Function(BuildContext, Exception error)?)
-
Show widget loading error for thumbnail
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- mimeType → String
-
Mime type of used file
final
- name → String?
-
Name of file which is used to create watermark.
final
- onlyIcon → bool?
-
Should be used icon instead of widget from
Thumbnailer._generationStrategiesfinal - onlyName → bool?
-
Show only name for watermark thumbnail
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- useWaterMark → bool?
-
Should create watermark and apply for thumbnail
final
- useWrapper → bool?
-
Should be thumbnail wrapped
final
- widgetSize → double
-
Size of generated thumbnail without wrapper
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → ThumbnailState -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects 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}) → 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