WhiteboardToolbar class

Toolbar widget for the whiteboard providing drawing tools and controls.

This widget renders a horizontal toolbar with buttons for:

  • Drawing mode selection (pan, draw, freehand, shapes, text, erase, select)
  • Shape type selection
  • Color picker
  • Thickness controls
  • Line type selection
  • Undo/redo
  • Zoom controls
  • Background toggle
Inheritance

Constructors

WhiteboardToolbar({Key? key, required WhiteboardMode currentMode, required WhiteboardShapeType currentShapeType, required Color currentColor, required double brushThickness, required double lineThickness, required double eraserThickness, required LineType lineType, required double fontSize, required bool useImageBackground, required bool canUndo, required bool canRedo, required ValueChanged<WhiteboardMode> onModeChanged, required ValueChanged<WhiteboardShapeType> onShapeTypeChanged, required ValueChanged<Color> onColorChanged, required ValueChanged<double> onBrushThicknessChanged, required ValueChanged<double> onLineThicknessChanged, required ValueChanged<double> onEraserThicknessChanged, required ValueChanged<LineType> onLineTypeChanged, required ValueChanged<double> onFontSizeChanged, required VoidCallback onUndo, required VoidCallback onRedo, VoidCallback? onDeleteShape, bool hasSelectedShape = false, required VoidCallback onClear, required VoidCallback onZoomIn, required VoidCallback onZoomOut, required VoidCallback onResetZoom, required VoidCallback onToggleBackground, VoidCallback? onSave, VoidCallback? onUploadImage, required VoidCallback onToggleToolbar})
const

Properties

brushThickness → double
Current brush thickness for freehand drawing.
final
canRedo → bool
Whether redo is available.
final
canUndo → bool
Whether undo is available.
final
currentColor → Color
Current drawing color.
final
currentMode → WhiteboardMode
Current drawing mode.
final
currentShapeType → WhiteboardShapeType
Current shape type for shape mode.
final
eraserThickness → double
Current eraser thickness.
final
fontSize → double
Current font size for text.
final
hashCode → int
The hash code for this object.
no setterinherited
hasSelectedShape → bool
Whether a shape is currently selected.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
lineThickness → double
Current line thickness for shapes.
final
lineType → LineType
Current line type.
final
onBrushThicknessChanged → ValueChanged<double>
Callback when brush thickness changes.
final
onClear → VoidCallback
Callback for clear canvas action.
final
onColorChanged → ValueChanged<Color>
Callback when color changes.
final
onDeleteShape → VoidCallback?
Callback for delete selected shape action.
final
onEraserThicknessChanged → ValueChanged<double>
Callback when eraser thickness changes.
final
onFontSizeChanged → ValueChanged<double>
Callback when font size changes.
final
onLineThicknessChanged → ValueChanged<double>
Callback when line thickness changes.
final
onLineTypeChanged → ValueChanged<LineType>
Callback when line type changes.
final
onModeChanged → ValueChanged<WhiteboardMode>
Callback when mode changes.
final
onRedo → VoidCallback
Callback for redo action.
final
onResetZoom → VoidCallback
Callback for reset zoom action.
final
onSave → VoidCallback?
Callback for saving canvas as image.
final
onShapeTypeChanged → ValueChanged<WhiteboardShapeType>
Callback when shape type changes.
final
onToggleBackground → VoidCallback
Callback for toggle background action.
final
onToggleToolbar → VoidCallback
Callback for hiding the toolbar.
final
onUndo → VoidCallback
Callback for undo action.
final
onUploadImage → VoidCallback?
Callback for uploading image to canvas.
final
onZoomIn → VoidCallback
Callback for zoom in action.
final
onZoomOut → VoidCallback
Callback for zoom out action.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
useImageBackground → bool
Whether using image background.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<WhiteboardToolbar>
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