jexer.ttree

Class TTreeView

java.lang.Object

jexer.TWidget

jexer.ttree.TTreeView

All Implemented Interfaces:

java.lang.Comparable<TWidget>

public class TTreeView
extends TWidget

TTreeView implements a simple tree view.

Constructor Summary

Constructors

Constructor and Description
TTreeView(TWidget parent, int x, int y, int width, int height) Public constructor.
TTreeView(TWidget parent, int x, int y, int width, int height, TAction action) Public constructor.

Method Summary

Modifier and Type	Method and Description
void	dispatch() Perform user selection action.
int	getLeftColumn() Get the left column value.
int	getMaximumColumn() Get the length of the widest item to display.
TTreeItem	getSelected() Get the tree view item that was selected.
int	getTopLine() Get the top line (row) value.
int	getTotalLineCount() Get the total line (rows) count, based on the items that are visible and expanded.
TTreeItem	getTreeRoot() Get the root of the tree.
void	onKeypress(TKeypressEvent keypress) Handle keystrokes.
void	setLeftColumn(int leftColumn) Set the left column value.
void	setSelected(TTreeItem item, boolean centerWindow) Set the new selected tree view item.
void	setTopLine(int topLine) Set the top line value.
void	setTreeRoot(TTreeItem treeRoot) Set the root of the tree.

Methods inherited from class jexer.TWidget

activate, activate, activate, activateAll, addButton, addCalendar, addCheckBox, addComboBox, addDirectoryList, addDirectoryList, addDirectoryList, addDirectoryList, addEditor, addField, addField, addField, addImage, addImage, addLabel, addLabel, addLabel, addLabel, addLabel, addLabel, addList, addList, addList, addList, addPanel, addPasswordField, addPasswordField, addPasswordField, addProgressBar, addRadioGroup, addSpinner, addSplitPane, addTable, addTable, addText, addText, addTreeViewWidget, addTreeViewWidget, close, compareTo, doRepaint, draw, drawBox, drawBox, drawBoxShadow, fileOpenBox, fileOpenBox, fileOpenBox, fileOpenBox, fileSaveBox, getAbsoluteX, getAbsoluteY, getActiveChild, getApplication, getAttrXY, getChildren, getCursorAbsoluteX, getCursorAbsoluteY, getCursorX, getCursorY, getHeight, getLayoutManager, getParent, getScreen, getTheme, getWidth, getWindow, getX, getY, handleEvent, hLineXY, inputBox, inputBox, inputBox, isAbsoluteActive, isActive, isCursorVisible, isDrawable, isEnabled, isVisible, messageBox, messageBox, mouseWouldHit, onCommand, onIdle, onMenu, onMouseDoubleClick, onMouseDown, onMouseMotion, onMouseUp, onResize, putAll, putAttrXY, putAttrXY, putCharXY, putCharXY, putCharXY, putStringXY, putStringXY, remove, remove, remove, remove, removeAll, resetTabOrder, setActive, setCursorVisible, setCursorX, setCursorY, setDimensions, setEnabled, setHeight, setLayoutManager, setParent, setupForTWindow, setVisible, setWidth, setWindow, setX, setY, splitHorizontal, splitVertical, switchWidget, toPrettyString, toPrettyString, toString, vLineXY

Methods inherited from class java.lang.Object

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

Constructor Detail

TTreeView

public TTreeView(TWidget parent,
                 int x,
                 int y,
                 int width,
                 int height)

Public constructor.

Parameters:

parent - parent widget

x - column relative to parent

y - row relative to parent

width - width of tree view

height - height of tree view

TTreeView

public TTreeView(TWidget parent,
                 int x,
                 int y,
                 int width,
                 int height,
                 TAction action)

Public constructor.

Parameters:

parent - parent widget

x - column relative to parent

y - row relative to parent

width - width of tree view

height - height of tree view

action - action to perform when an item is selected

Method Detail

onKeypress

public void onKeypress(TKeypressEvent keypress)

Handle keystrokes.

Overrides:

onKeypress in class TWidget

Parameters:

keypress - keystroke event

getTreeRoot

public final TTreeItem getTreeRoot()

Get the root of the tree.

Returns:

the root of the tree

setTreeRoot

public final void setTreeRoot(TTreeItem treeRoot)

Set the root of the tree.

Parameters:

treeRoot - the new root of the tree

getSelected

public final TTreeItem getSelected()

Get the tree view item that was selected.

Returns:

the selected item, or null if no item is selected

setSelected

public void setSelected(TTreeItem item,
                        boolean centerWindow)

Set the new selected tree view item.

Parameters:

item - new item that became selected

centerWindow - if true, move the window to put the selected into view

dispatch

public void dispatch()

Perform user selection action.

getLeftColumn

public int getLeftColumn()

Get the left column value. 0 is the leftmost column.

Returns:

the left column

setLeftColumn

public void setLeftColumn(int leftColumn)

Set the left column value. 0 is the leftmost column.

Parameters:

leftColumn - the new left column

getTopLine

public int getTopLine()

Get the top line (row) value. 0 is the topmost line.

Returns:

the top line

setTopLine

public void setTopLine(int topLine)

Set the top line value. 0 is the topmost line.

Parameters:

topLine - the new top line

getTotalLineCount

public int getTotalLineCount()

Get the total line (rows) count, based on the items that are visible and expanded.

Returns:

the line count

getMaximumColumn

public int getMaximumColumn()

Get the length of the widest item to display.

Returns:

the maximum number of columns for this item or its children