Construct a new grid layout.
The options for initializing the layout.
Private _boxPrivate _columnPrivate _columnPrivate _columnPrivate _dirtyPrivate _itemsPrivate _rowPrivate _rowPrivate _rowGet the number of columns in the layout.
Get the column spacing for the layout.
Set the col spacing for the layout.
Get the fit policy for the layout.
The fit policy controls the computed size constraints which are applied to the parent widget by the layout.
Some layout implementations may ignore the fit policy.
Set the fit policy for the layout.
The fit policy controls the computed size constraints which are applied to the parent widget by the layout.
Some layout implementations may ignore the fit policy.
Changing the fit policy will clear the current size constraint for the parent widget and then re-fit the parent.
Test whether the layout is disposed.
Get the parent widget of the layout.
Set the parent widget of the layout.
This is set automatically when installing the layout on the parent widget. The parent widget should not be set directly by user code.
Get the number of rows in the layout.
Get the row spacing for the layout.
Set the row spacing for the layout.
Private _fitPrivate _updateProtected attachGet the stretch factor for a specific column.
The stretch factor for the column.
This returns -1 if the index is out of range.
The column index of interest.
Protected detachProtected initProtected onA message handler invoked on an 'after-attach' message.
The default implementation of this method forwards the message to all widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onA message handler invoked on an 'after-detach' message.
The default implementation of this method forwards the message to all widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onA message handler invoked on an 'after-hide' message.
The default implementation of this method forwards the message to all non-hidden widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onA message handler invoked on an 'after-show' message.
The default implementation of this method forwards the message to all non-hidden widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onProtected onA message handler invoked on a 'before-detach' message.
The default implementation of this method forwards the message to all widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onA message handler invoked on a 'before-hide' message.
The default implementation of this method forwards the message to all non-hidden widgets. It assumes all widget nodes are attached to the parent widget node.
This may be reimplemented by subclasses as needed.
Protected onProtected onA message handler invoked on a 'child-hidden' message.
Protected onA message handler invoked on a 'child-removed' message.
This will remove the child widget from the layout.
Subclasses should not typically reimplement this method.
Protected onA message handler invoked on a 'child-shown' message.
Protected onProtected onA message handler invoked on a 'resize' message.
Protected onRemove a widget from the grid layout.
The widget to remove from the layout.
A widget is automatically removed from the layout when its parent
is set to null. This method should only be invoked directly when
removing a widget from a layout which has yet to be installed on a
parent widget.
This method does not modify the widget's parent.
Get the stretch factor for a specific row.
The stretch factor for the row.
This returns -1 if the index is out of range.
The row index of interest.
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A layout which arranges its widgets in a grid.