ChartAreaContainer class abstract

Base class which manages, lays out, moves, and paints each top level block on the chart. The basic top level chart blocks are:

  • ChartTopContainer - the whole chart
  • LegendContainer - manages the legend
  • YContainer - manages the Y labels layout, which defines:
    • Y axis label sizes
    • Y positions of Y axis labels, defined as yTickY. yTicksY s are the Y points of scaled data values and also Y points on which the Y labels are centered.
  • XContainer - Equivalent to YContainer, but manages X direction layout and labels.
  • DataContainer and extensions - manages the area which displays:
    • Data as bar chart, line chart, or other chart type.
    • Grid (this includes the X and Y axis).

See Container for discussion of roles of this class. This extension of Container has the added ability to access the container's parent, which is handled by chartTopContainer.

Implementers

Constructors

ChartAreaContainer({required ChartTopContainer chartTopContainer})

Properties

chartTopContainer → ChartTopContainer
The chart top level.
final
enableSkipOnDistressedSize ↔ bool
If size constraints imposed by parent are too tight, some internal calculations of sizes may lead to negative values, making painting of this container not possible.
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
isDistressed ↔ bool
getter/setter pairinherited
layoutSize ↔ Size
Manages the layout size during the layout process in layout. Should be only mentioned in this class, not super
getter/setter pairinherited
offset ↔ Offset
Current absolute offset, set by parent (and it's parent etc, to root).
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
skipByParent ↔ bool
skipByParent instructs the parent container that this container should not be painted or layed out - as if it collapsed to zero size.
getter/setter pairinherited
tiltMatrix → Matrix2
Provides access to tiltMatrix for extension's paint methods.
no setterinherited

Methods

applyParentOffset(Offset offset) → void
Allow a parent container to move this Container after layout.
inherited
applyParentTiltMatrix(Matrix2 tiltMatrix) → void
Tilt may apply to the whole container. todo-2 unused? move to base class? similar to offset?
inherited
layout(LayoutExpansion parentLayoutExpansion) → void
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paint(Canvas canvas) → void
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited