IsCollapsible (GWT Javadoc)

All Known Implementing Classes:

ButtonCellBase, TextButtonCell
```
public interface IsCollapsible
```
Indicates that a UI component can be collapsed next to another UI component, thus sharing a common border. This allows UI components to appear flush against each other without extra thick borders.
Before collapse:
```
   ---------    ----------    ---------
  | ButtonA |  |  ButtonB |  | ButtonC |
   ---------    ----------    ---------
 
```
After collapse:
```
   -----------------------------
  | ButtonA | ButtonB | ButtonC |
   -----------------------------
 
```
In the above example, ButtonA has right-side collapsed, ButtonB has both left and right-side collapsed, and ButtonC has left-side collapsed.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isCollapseLeft()`	Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
`boolean`	`isCollapseRight()`	right Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
`void`	`setCollapseLeft(boolean isCollapsed)`	Sets whether the left-side of the UI component is collapsed (sharing border with the component to its left).
`void`	`setCollapseRight(boolean isCollapsed)`	Sets whether the right-side of the UI component is collapsed (sharing border with the component to its right).

- Method Detail
  - isCollapseLeft
```
boolean isCollapseLeft()
```
    Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
    
    Returns:
    
    true if collapsed, false if not
  - isCollapseRight
```
boolean isCollapseRight()
```
    right Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
    
    Returns:
    
    true if collapsed, false if not
  - setCollapseLeft
```
void setCollapseLeft(boolean isCollapsed)
```
    Sets whether the left-side of the UI component is collapsed (sharing border with the component to its left).
    
    Parameters:
    
    isCollapsed - true if collapsed, false if not
  - setCollapseRight
```
void setCollapseRight(boolean isCollapsed)
```
    Sets whether the right-side of the UI component is collapsed (sharing border with the component to its right).
    
    Parameters:
    
    isCollapsed - true if collapsed, false if not