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jcurses.widgets
Class Button  

java.lang.Object
  jcurses.widgets.Widget
      jcurses.widgets.Button

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public class Button

extends Widget

This class implements a buttton-widget. Such button has a label and is 'clicked' by user typing a special character (default 'enter'). If it is 'clicked', it generates an ActionEvent, that is delegetated to registered listeners.

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Field Summary
private static jcurses.system.InputChar	__actionChar
private static jcurses.system.CharColor	__buttonDefaultColors
private static jcurses.system.CharColor	__focusedButtonDefaultColors
private static jcurses.system.CharColor	__shortCutDefaultColors
private  jcurses.system.CharColor	_focusedButtonColors
private  java.lang.String	_label
private  jcurses.event.ActionListenerManager	_listenerManager
private  jcurses.system.InputChar	_shortCut
private  jcurses.system.CharColor	_shortCutColors

 

Fields inherited from class jcurses.widgets.Widget

_parent, _window

 

Constructor Summary

Button(java.lang.String label)           The constructor

 

Method Summary
void	addListener(jcurses.event.ActionListener listener)           Adds a listener to the button.
private  void	changeColors()
private  void	doAction()
protected  void	doPaint()           This method paints the widget.
protected  void	doRepaint()           This method repaints the widget.
private  void	drawShortCutIfNeeded()
protected  void	focus()           The method is called bei setFocus to tell widget, thas it has get focus.
jcurses.system.CharColor	getDefaultColors()
jcurses.system.CharColor	getFocusedButtonColors()
private  jcurses.system.CharColor	getFocusedButtonDefaultColors()
java.lang.String	getLabel()
protected  jcurses.util.Rectangle	getPreferredSize()           This method gives the widget container the infomation about the preferred size of this widget.
private  jcurses.system.InputChar	getShortCut()
jcurses.system.CharColor	getShortCutColors()
private  jcurses.system.CharColor	getShortCutDefaultColors()
protected  java.util.Vector	getShortCutsList()           This method returns a list of short cut chars, that the widget want to handle.
protected  boolean	handleInput(jcurses.system.InputChar ch)           The method is called by framework to let the widget handle an input char.
protected  boolean	isFocusable()           The method declares, whether the widget can handle input ( get focus ), that is, whether this is an input widget.
void	removeListener(jcurses.event.ActionListener listener)           Removes a listener from the button.
void	setFocusedButtonColors(jcurses.system.CharColor colors)           Sets button's colors in focused state
void	setLabel(java.lang.String label)           Sets button's label
void	setShortCut(char c)           Set's button's shortcut char.
void	setShortCutColors(jcurses.system.CharColor colors)           Sets button's shortcut char's colors.
protected  void	unfocus()           The method is called bei setFocus to tell widget, thas it has lost focus.

 

Methods inherited from class jcurses.widgets.Widget

getAbsoluteX, getAbsoluteY, getColors, getFocus, getParent, getRectangle, getSize, getVisible, getWindow, getX, getY, hasFocus, isVisible, paint, repaint, setColors, setFocus, setParent, setSize, setVisible, setWindow, setX, setY

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

_listenerManager

private jcurses.event.ActionListenerManager _listenerManager

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__buttonDefaultColors

private static jcurses.system.CharColor __buttonDefaultColors

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_label

private java.lang.String _label

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__focusedButtonDefaultColors

private static jcurses.system.CharColor __focusedButtonDefaultColors

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_focusedButtonColors

private jcurses.system.CharColor _focusedButtonColors

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__shortCutDefaultColors

private static jcurses.system.CharColor __shortCutDefaultColors

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_shortCutColors

private jcurses.system.CharColor _shortCutColors

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__actionChar

private static jcurses.system.InputChar __actionChar

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_shortCut

private jcurses.system.InputChar _shortCut

Constructor Detail

Button

public Button(java.lang.String label)

The constructor

Method Detail

getDefaultColors

public jcurses.system.CharColor getDefaultColors()

Overrides:

getDefaultColors in class Widget

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setLabel

public void setLabel(java.lang.String label)

Sets button's label

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getLabel

public java.lang.String getLabel()

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getFocusedButtonDefaultColors

private jcurses.system.CharColor getFocusedButtonDefaultColors()

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getFocusedButtonColors

public jcurses.system.CharColor getFocusedButtonColors()

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setFocusedButtonColors

public void setFocusedButtonColors(jcurses.system.CharColor colors)

Sets button's colors in focused state

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getShortCutDefaultColors

private jcurses.system.CharColor getShortCutDefaultColors()

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getShortCutColors

public jcurses.system.CharColor getShortCutColors()

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setShortCutColors

public void setShortCutColors(jcurses.system.CharColor colors)

Sets button's shortcut char's colors. If the button has a shortcut char and this char is contained by the label, than the char within the label will be painted in different colors, set by this method

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getPreferredSize

protected jcurses.util.Rectangle getPreferredSize()

Description copied from class: Widget

This method gives the widget container the infomation about the preferred size of this widget. Must be implemented by derived classes.

Specified by:

getPreferredSize in class Widget

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doPaint

protected void doPaint()

Description copied from class: Widget

This method paints the widget. Will be called by paint(), only if the widget is visible. Must be implemented be derived classes.

Specified by:

doPaint in class Widget

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drawShortCutIfNeeded

private void drawShortCutIfNeeded()

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getShortCutsList

protected java.util.Vector getShortCutsList()

Description copied from class: Widget

This method returns a list of short cut chars, that the widget want to handle. If a char from the list is typed by user, it will be handled always my this widget not bei the widget currenty having focus, except the having focus widget handles ALL chars and tells this throuth the method handleAllPrintableChars. To enable shortcuts for a new widget, you must override this method.

Overrides:

getShortCutsList in class Widget

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isFocusable

protected boolean isFocusable()

Description copied from class: Widget

The method declares, whether the widget can handle input ( get focus ), that is, whether this is an input widget.

Overrides:

isFocusable in class Widget

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doRepaint

protected void doRepaint()

Description copied from class: Widget

This method repaints the widget. Will be called by paint(), only if the widget is visible. Must be implemented be derived classes.

Specified by:

doRepaint in class Widget

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handleInput

protected boolean handleInput(jcurses.system.InputChar ch)

Description copied from class: Widget

The method is called by framework to let the widget handle an input char. Schould be overrided be derived classes, if these can handle input.

Overrides:

handleInput in class Widget

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changeColors

private void changeColors()

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focus

protected void focus()

Description copied from class: Widget

The method is called bei setFocus to tell widget, thas it has get focus. This method schold be overrided bei derived class to react getting focus, for examlple to repaint widget gettig focus.

Overrides:

focus in class Widget

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unfocus

protected void unfocus()

Description copied from class: Widget

The method is called bei setFocus to tell widget, thas it has lost focus. This method schold be overrided bei derived class to react losing focus, for examlple to repaint widget losing focus.

Overrides:

unfocus in class Widget

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addListener

public void addListener(jcurses.event.ActionListener listener)

Adds a listener to the button.

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removeListener

public void removeListener(jcurses.event.ActionListener listener)

Removes a listener from the button.

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doAction

private void doAction()

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setShortCut

public void setShortCut(char c)

Set's button's shortcut char. If this shortcut is typed, than the button will handle the char, as described by Widget, and generate an Event as whether the button would be 'clicked'.

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getShortCut

private jcurses.system.InputChar getShortCut()

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