org.zaval.lw
Class LwPopupLayer

java.lang.Object
  |
  +--org.zaval.lw.LwCanvas
        |
        +--org.zaval.lw.LwPanel
              |
              +--org.zaval.lw.LwBaseLayer
                    |
                    +--org.zaval.lw.LwPopupLayer

All Implemented Interfaces:

java.util.EventListener, Layoutable, LayoutContainer, LwActionListener, LwChildrenListener, LwComponent, LwContainer, LwLayer, LwLayout, PosListener, java.lang.Runnable, Validationable

public class LwPopupLayer

extends LwBaseLayer

implements LwLayout, LwActionListener, PosListener, java.lang.Runnable, LwChildrenListener

This is popup menu layer. The layer is used to show any popup menu (LwMenu). As usual you should not use the layer directly, in common case you should use the LwPopupManager class to specify a popup menu. After that the popup menu will appear automatically when it is necessary.

Field Summary
static java.lang.String	ID           The layer id.

 

Fields inherited from class org.zaval.lw.LwPanel

children

 

Fields inherited from class org.zaval.lw.LwCanvas

bits, bottom, height, isValidValue, left, parent, psHeight, psWidth, right, skins, temporary, top, width, x, y

 

Constructor Summary

LwPopupLayer()           Constructs the layer.

 

Method Summary
void	actionPerformed(java.lang.Object src, java.lang.Object data)           Invoked when an action event occurred.
java.awt.Dimension	calcPreferredSize(LayoutContainer target)           Calculates the preferred size dimension for the layout container.
void	childPerformed(LwVCLEvent e)           Invoked whenever the child event has been performed.
void	componentAdded(java.lang.Object id, Layoutable lw, int index)           Invoked when the specified layoutable component was added to the layout container (that uses the layout manager).
void	componentRemoved(Layoutable lw, int index)           Invoked when the specified layoutable component was removed from the layout container, that uses the layout manager.
protected  LwLayout	getDefaultLayout()           Gets the default layout manager that is set with the container during initialization.
boolean	isActive()           Tests if the layer is active.
boolean	isActiveAt(int x, int y)           Tests if the layer is active at the specified location.
void	layout(LayoutContainer target)           Lays out the child layoutable components inside the layout container.
void	mousePressed(int x, int y, int mask)           Invoked whenever a mouse button has been pressed.
void	posChanged(java.lang.Object target, int prevOffset, int prevLine, int prevCol)           Invoked when a virtual position has been changed.
void	remove(int index)           Removes the component, specified by the index, from this container.
void	run()
void	setMenuBar(LwComponent mb)           Invoked whenever the menu bar component has been activated.

 

Methods inherited from class org.zaval.lw.LwBaseLayer

activate, getFocusRoot, getID, keyPressed

 

Methods inherited from class org.zaval.lw.LwPanel

add, add, calcPreferredSize, count, get, getLayoutOffset, getLwComponentAt, getLwLayout, getPreferredSize, indexOf, insert, insert, invalidate, isInvalidatedByChild, laidout, paintOnTop, remove, removeAll, setBackground, setLwLayout, setOpaque, setSize, toFront, updateCashedPs, validate

 

Methods inherited from class org.zaval.lw.LwCanvas

calcInsets, canHaveFocus, customize, cvp, getBackground, getBottom, getBounds, getHeight, getInsets, getLeft, getLocation, getLwParent, getOrigin, getPSImpl, getRight, getSize, getTop, getViewMan, getVisiblePart, getWidth, getX, getY, hasFocus, isEnabled, isOpaque, isValid, isVisible, paint, recalc, repaint, repaint, repaint, requestFocus, setEnabled, setInsets, setLocation, setLwParent, setPSSize, setViewMan, setVisible, update, viewManChanged, vrp

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.zaval.lw.LwContainer

add, add, getLwLayout, indexOf, insert, isInvalidatedByChild, paintOnTop, removeAll, setLwLayout

 

Methods inherited from interface org.zaval.lw.LwComponent

canHaveFocus, getBackground, getLwComponentAt, getLwParent, getOrigin, getViewMan, getVisiblePart, isEnabled, isOpaque, paint, repaint, repaint, repaint, setBackground, setEnabled, setInsets, setLwParent, setOpaque, setViewMan, setVisible, update

 

Methods inherited from interface org.zaval.lw.Layoutable

getBounds, getHeight, getInsets, getLocation, getPreferredSize, getSize, getWidth, getX, getY, isVisible, setLocation, setSize

 

Methods inherited from interface org.zaval.util.Validationable

invalidate, isValid, validate

 

Methods inherited from interface org.zaval.lw.LayoutContainer

count, get, getLayoutOffset

 

Field Detail

ID

public static final java.lang.String ID

The layer id.

LwPopupLayer

public LwPopupLayer()

Constructs the layer.

run

public void run()

Specified by:

run in interface java.lang.Runnable

mousePressed

public void mousePressed(int x,
                         int y,
                         int mask)

Description copied from interface: LwLayer

Invoked whenever a mouse button has been pressed.

Overrides:

mousePressed in class LwBaseLayer

Following copied from interface: org.zaval.lw.LwLayer

Parameters:

x - the x coordinate of the mouse pointer.

y - the y coordinate of the mouse pointer.

mask - the mask that specifies mouse buttons states.

childPerformed

public void childPerformed(LwVCLEvent e)

Description copied from interface: LwChildrenListener

Invoked whenever the child event has been performed.

Specified by:

childPerformed in interface LwChildrenListener

Following copied from interface: org.zaval.lw.event.LwChildrenListener

Parameters:

e - the child event.

isActive

public boolean isActive()

Description copied from interface: LwLayer

Tests if the layer is active.

Overrides:

isActive in class LwBaseLayer

Following copied from interface: org.zaval.lw.LwLayer

Returns:

true if the layer is active.

isActiveAt

public boolean isActiveAt(int x,
                          int y)

Description copied from interface: LwLayer

Tests if the layer is active at the specified location. As rule the method is called when a mouse (pointer) event happened.

Overrides:

isActiveAt in class LwBaseLayer

Following copied from interface: org.zaval.lw.LwLayer

Parameters:

x - the x coordinate.

y - the y coordinate.

Returns:

true if the layer is active.

remove

public void remove(int index)

Description copied from interface: LwContainer

Removes the component, specified by the index, from this container. The layout manager of this container should be informed by calling the componentRemoved method of the manager.

Overrides:

remove in class LwPanel

Following copied from interface: org.zaval.lw.LwContainer

Parameters:

i - the index of the component to be removed.

posChanged

public void posChanged(java.lang.Object target,
                       int prevOffset,
                       int prevLine,
                       int prevCol)

Description copied from interface: PosListener

Invoked when a virtual position has been changed.

Specified by:

posChanged in interface PosListener

Following copied from interface: org.zaval.misc.event.PosListener

Parameters:

target - the specified pos controller.

prevOffset - the previous offset.

prevLine - the previous line.

prevColumn - the previous column.

actionPerformed

public void actionPerformed(java.lang.Object src,
                            java.lang.Object data)

Description copied from interface: LwActionListener

Invoked when an action event occurred.

Specified by:

actionPerformed in interface LwActionListener

Following copied from interface: org.zaval.lw.event.LwActionListener

Parameters:

src - the specified source where the event has been originated.

data - the event data.

setMenuBar

public void setMenuBar(LwComponent mb)

Invoked whenever the menu bar component has been activated.

Parameters:

mb - the specified menu bar component.

componentAdded

public void componentAdded(java.lang.Object id,
                           Layoutable lw,
                           int index)

Description copied from interface: LwLayout

Invoked when the specified layoutable component was added to the layout container (that uses the layout manager). The specified constraints, layoutable component and child index are passed as arguments into the method.

Specified by:

componentAdded in interface LwLayout

Following copied from interface: org.zaval.lw.LwLayout

Parameters:

id - the layoutable component constraints.

lw - the layoutable component that has been added.

index - the child index.

componentRemoved

public void componentRemoved(Layoutable lw,
                             int index)

Description copied from interface: LwLayout

Invoked when the specified layoutable component was removed from the layout container, that uses the layout manager.

Specified by:

componentRemoved in interface LwLayout

Following copied from interface: org.zaval.lw.LwLayout

Parameters:

lw - the layoutable component that has been removed.

index - the child component index.

calcPreferredSize

public java.awt.Dimension calcPreferredSize(LayoutContainer target)

Description copied from interface: LwLayout

Calculates the preferred size dimension for the layout container. The method has to calculate "pure" preferred size, it means that container insets should not be taken into account.

Specified by:

calcPreferredSize in interface LwLayout

Following copied from interface: org.zaval.lw.LwLayout

Parameters:

target - the layout container.

Returns:

a "pure" preferred size.

layout

public void layout(LayoutContainer target)

Description copied from interface: LwLayout

Lays out the child layoutable components inside the layout container.

Specified by:

layout in interface LwLayout

Following copied from interface: org.zaval.lw.LwLayout

Parameters:

target - the layout container.

getDefaultLayout

protected LwLayout getDefaultLayout()

Description copied from class: LwPanel

Gets the default layout manager that is set with the container during initialization. This implementation of the method returns LwRastLayout as the default layout manager, the layout manager is got as a static object by "def.lay" key.

Overrides:

getDefaultLayout in class LwPanel

Following copied from class: org.zaval.lw.LwPanel

Returns:

a layout manager.