org.zaval.lw
Class LwFilePanel

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

All Implemented Interfaces:

java.util.EventListener, Layoutable, LayoutContainer, LwActionListener, LwChildrenListener, LwComponent, LwContainer, Validationable

public class LwFilePanel

extends LwPanel

implements LwActionListener, LwChildrenListener

This panel provides ability to select a file in the files tree hierarchy. Register an action listener to be notified whenever a selected file has been changed.

The panel reads fields titles as the following LwVCL resources:

fld.path	path field title
fld.mask	mask combo box title
fld.file	file field title

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

LwFilePanel(java.lang.String root)           Constructs the file panel with the specified root directory.

LwFilePanel(java.lang.String root, java.lang.String[][] ext)           Constructs the file panel with the specified root directory and the given file mask.

 

Method Summary
void	actionPerformed(java.lang.Object target, java.lang.Object data)           Invoked when an action event occurred.
void	addActionListener(LwActionListener l)           Adds the action listener to get events whenever a new file has been selected.
void	childPerformed(LwVCLEvent e)           Invoked whenever the child event has been performed.
static TreeModel	createTreeModel(java.lang.String root, java.io.FilenameFilter f)           Creates and returns the tree model basing on the specified root directory and the given file filter.
protected  LwLayout	getDefaultLayout()           Gets the default layout manager that is set with the container during initialization.
LwTree	getFileTree()           Gets the tree component that represents the file tree.
java.io.File	getSelectedFile()           Gets the selected file.
java.io.File	lookup(java.lang.String path)           Search a file by the specified path.
void	removeActionListener(LwActionListener l)           Removes the action listener.

 

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, 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.LwComponent

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

 

Methods inherited from interface org.zaval.lw.Layoutable

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

 

Methods inherited from interface org.zaval.util.Validationable

isValid

 

Constructor Detail

LwFilePanel

public LwFilePanel(java.lang.String root)

Constructs the file panel with the specified root directory. The constructor setups a filter to list all available files and directories.

Parameters:

root - the specified root directory. The directory tree will be created relatively the root directory.

LwFilePanel

public LwFilePanel(java.lang.String root,
                   java.lang.String[][] ext)

Constructs the file panel with the specified root directory and the given file mask.

Parameters:

root - the specified root directory. The directory tree will be created relatively the root directory.

ext - the file filter. The filter is a two-dimensional array where the first element corresponds to the extension filter title and the second element specifies a file extension filter.

getFileTree

public LwTree getFileTree()

Gets the tree component that represents the file tree.

Returns:

a tree component.

getSelectedFile

public java.io.File getSelectedFile()

Gets the selected file.

Returns:

a selected file.

lookup

public java.io.File lookup(java.lang.String path)

Search a file by the specified path.

Parameters:

path - the specified file path.

Returns:

a file if it has been found, otherwise the method returns null.

addActionListener

public void addActionListener(LwActionListener l)

Adds the action listener to get events whenever a new file has been selected.

Parameters:

l - the specified action listener.

removeActionListener

public void removeActionListener(LwActionListener l)

Removes the action listener.

Parameters:

l - the specified action listener.

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.

actionPerformed

public void actionPerformed(java.lang.Object target,
                            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.

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.

createTreeModel

public static TreeModel createTreeModel(java.lang.String root,
                                        java.io.FilenameFilter f)

Creates and returns the tree model basing on the specified root directory and the given file filter.

Parameters:

root - the specified root directory.

f - the specified file filter.

Returns:

a tree model that represents the a hierarchy of the files.