isViewportSized property

bool get isViewportSized

Gets or sets whether this layout depends on the Diagram#viewportBounds's size. If set to true, the layout will invalidate when the Diagram's viewport changes size. This only applies to diagram layouts, not to group layouts, and only when Diagram#autoScale is set to Diagram.None.

The default value is false. Setting this property to true will invalidate this layout.

It is possible that a viewport-sized layout will trigger the Diagram to require scrollbars, which modifies the Diagram#viewportBounds, which will in turn trigger another layout. This is uncommon, but possible with GridLayout if the results require a vertical scrollbar, and that vertical scrollbar shrinks the viewport width enough that a grid column can no longer fit. When designing custom layouts, one should be careful that this behavior does not result in an infinite loop.

Implementation

_i2.bool get isViewportSized => _i4.getProperty(
      this,
      'isViewportSized',
    );

set isViewportSized (bool value)

Implementation

set isViewportSized(_i2.bool value) {
  _i4.setProperty(
    this,
    'isViewportSized',
    value,
  );
}