Term
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Definition
| defines methods for reading and writing a model's properties and for adding and removing various types of event listeners |
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Term
| ButtonModel property: actionCommand |
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Definition
datatype: string
purpose: specifies the name property of the controller that should be sent to the ActionEvent. If none is specified, it takes the buttons text.
notes: this should be used if the buttons only have icons or several have the same name |
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Term
| Button Model property: armed |
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Definition
datatype: boolean
purpose: indicates whether releasing on a button creates an action
note: will become false if the mouse arrow is out of focus of the component |
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Term
| Button Model property: group |
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Definition
datatype: ButtonGroup
purpose: indicates whether which group the button belongs to if any
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| Button Model property: selected |
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Definition
datatype: boolean
purpose: indicates whether the button is selected or not
notes: this only available underneath JToggleButton and its subclasses
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Term
| Buton Model Events: ActionEvent |
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Definition
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Term
| Buton Model Events: ChangeEvent |
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Definition
| A change has occurred in one or more properties of the button model. |
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| Buton Model Events: ItemEvent |
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Definition
| The button is toggled on or off. |
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Term
ButtonModel Methods
Hint: 6 Methods |
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Definition
public void addActionListener(ActionListener l) |
public void removeActionListener(ActionListener l) |
public void addItemListener(ItemListener l) |
public void removeItemListener(ItemListener l) |
public void addChangeListener(ChangeListener l) |
public void removeChangeListener(ChangeListener l) |
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Term
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Definition
Abstract Class that implements ButtonModel
note: This class is used directly by the AbstractButton class and indirectly by the other button classes. |
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Term
| DefaultButtonModel property (not inherited from ButtonModel): selectedObjects |
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Definition
Abstract array of objects
note: returns selected objects and is mandated by the interface int implements ItemsSelectable |
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Term
| DefaultButtonModel Events (not from ButtonModel interface): |
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Definition
public ActionListener[] getActionListeners( ) (added in SDK 1.3)
public ItemListener[] getItemListeners( ) (added in SDK 1.3)
public ChangeListener[] getChangeListeners( ) (added in SDK 1.3)
public EventListener[] getListeners(Class listenerType) (added in SDK 1.4)
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Term
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Definition
abstract base class for all button components (JButton, JToggleButton, JCheckBox, JRadioButton, and JMenuItem and its subclasses)
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Term
| AbstractButtonClass new Properties: action |
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Definition
datatype: Action
default value: null
note: Action received any form of ActionEvent
component configures its properties to match the action properties
component isntalls itself a propertyChangeListener on the action so its properties reflect the actions properties
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Term
| AbstractButtonClass new Properties: icon |
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Definition
datatype: Icon
purpose: to display a visual icon on the button |
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Term
| AbstractButtonClass new Properties: disabledIcon |
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Definition
datatype: Icon
purpose: image to reflect that the button is disabled
note: will show grayscale of the regular registered icon if this is not defined |
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Term
| AbstractButtonClass new Properties: selectedIcon |
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Definition
datatype: Icon
purpose: Icon to show that the button is selected |
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Term
| AbstractButtonClass new Properties: disabledSelectedIcon |
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Definition
datatype: Icon
purpose: shows when the button state is selected and disabled
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Term
| AbstractButtonClass new Properties: pressedIcon |
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Definition
datatype: Icon
purpose: to show that the button is being pressed
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Term
| AbstractButtonClass new Properties: rolloverIcon |
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Definition
datatype: Icon
purpose: shows an image when the mouse cursor rolls over the button |
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Term
| AbstractButtonClass new Properties: rolloverSelectedIcon |
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Definition
datatype: Icon
purpose: displays an image when the button is selected and is being rolled over |
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Term
| AbstractButtonClass new Properties: model |
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Definition
datatype: ButtonModel
purpose: determinds the state of the button |
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Term
AbstractButton properties:
horizontalAlignment and verticalAlignment
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Definition
datatype: int
purpose: specify where the button's content (text, icon, or both) should be drawn within the button's borders
note: significant only if the button is larger than button size |
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Term
| AbstractButton properties: multiClickThreshold |
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Definition
datatype: long
prupose: a time threshold in miliseconds that determines the length of time of which multiclicks can be coalesced under one ActionEvent |
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Term
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Definition
| Simplest of buttons and a minor extension of AbstractButton |
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Definition
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Definition
datatype: ButtonModel (returns implementation as DefaultButtonModel)
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Term
| JButton property: accessibleContext |
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Definition
datatype: AccessableContext
Assistive Technology support |
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Term
| JButton property: defaultButton |
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Definition
datatype: boolean
purpose:indicates whether the button is activated by default when some event occurs within the JRootPane containing the button.
note: Typically, the event that would trigger the button would be an Enter key press, but this is actually up to the L&F implementation. |
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Term
| JButton property: defaultCapable |
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Definition
datatype: boolean
purpose: indicates whether the JRootPane can set it as a default property |
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Term
| JButton event: when clicked? |
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Definition
ActionEvent
note: sent after the button is released, and only if the button is still armed (meaning that the cursor is still over the button |
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Term
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Definition
AbstractButton and is used to represent buttons that can be toggled on and off
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Term
| JToggleButton property: accessibleContent |
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Definition
datatype: AccessableContext
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Term
| JToggleButton property: model |
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Definition
| datatype: ButtonModel (returns as ToggleButtonModel) |
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