jscicalc.ReadOnlyDisplayPanel Interface Reference
An interface for DisplayPanel so that we can read the state in classes that don’t need to change the state. More...
Public Member Functions | |
| boolean | getOn () |
| This function tells us if the display is switched on or not. | |
| ReadOnlyCalculatorApplet | getApplet () |
| Get a read-only interface for the CalculatorApplet. | |
| boolean | hasCaret (final ScrollableLabel scrollableLabel) |
| Find if scrollableLabel has the Caret. | |
Detailed Description
An interface for DisplayPanel so that we can read the state in classes that don’t need to change the state.
- Version:
- Revision
- 1.5
Member Function Documentation
| boolean jscicalc.ReadOnlyDisplayPanel.getOn | ( | ) |
This function tells us if the display is switched on or not.
Probably it is redundant because the state should always match CalculatorPanel.
- Returns:
- true whenever the display is switched on
Implemented in jscicalc.DisplayPanel.
Referenced by jscicalc.ExtraPanel.paintComponent().
| ReadOnlyCalculatorApplet jscicalc.ReadOnlyDisplayPanel.getApplet | ( | ) |
Get a read-only interface for the CalculatorApplet.
Useful because view classes should never change the CalculatorApplet state
- Returns:
- A read-only interface to the controller
Implemented in jscicalc.DisplayPanel.
Referenced by jscicalc.DisplayLabel.getBase(), jscicalc.ExtraPanel.paintComponent(), jscicalc.DisplayLabel.setExpression(), jscicalc.DisplayLabel.setNewExpression(), jscicalc.EntryLabel.update(), and jscicalc.DisplayLabel.update().
| boolean jscicalc.ReadOnlyDisplayPanel.hasCaret | ( | final ScrollableLabel | scrollableLabel | ) |
Find if scrollableLabel has the Caret.
This allows us to query the interface and find whether EntryPanel or DisplayPanel has permission to display a Caret
- Parameters:
-
scrollableLabel The Scrollable label we wish to know about
- Returns:
- true or false according as scrollableLabel has or has not permission to show a Caret
Implemented in jscicalc.DisplayPanel.
Referenced by jscicalc.ScrollableLabel.updateCaretVisibility().
The documentation for this interface was generated from the following file:
