ch.randelshofer.quaqua

Class QuaquaTreeUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.TreeUI

javax.swing.plaf.basic.BasicTreeUI

ch.randelshofer.quaqua.QuaquaTreeUI

public class QuaquaTreeUI
extends javax.swing.plaf.basic.BasicTreeUI

QuaquaTreeUI. XXX - Without copying a substantial amount of code from BasicTreeUI, we can't implement the proper selection behavior for a JTree.

Version:

$Id: QuaquaTreeUI.java 462 2014-03-22 09:23:12Z wrandelshofer $

Author:

Werner Randelshofer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	QuaquaTreeUI.FocusHandler This inner class is marked "public" due to a compiler bug.
class	QuaquaTreeUI.TreeCancelEditingAction ActionListener that invokes cancelEditing when action performed.
class	QuaquaTreeUI.TreeHomeAction TreeHomeAction is used to handle end/home actions.
class	QuaquaTreeUI.TreeIncrementAction TreeIncrementAction is used to handle up/down actions.
class	QuaquaTreeUI.TreePageAction TreePageAction handles page up and page down events.
class	QuaquaTreeUI.TreeToggleAction For the first selected row expandedness will be toggled.
class	QuaquaTreeUI.TreeTraverseAction TreeTraverseAction is the action used for left/right keys.

Nested classes/interfaces inherited from class javax.swing.plaf.basic.BasicTreeUI

javax.swing.plaf.basic.BasicTreeUI.CellEditorHandler, javax.swing.plaf.basic.BasicTreeUI.ComponentHandler, javax.swing.plaf.basic.BasicTreeUI.KeyHandler, javax.swing.plaf.basic.BasicTreeUI.MouseHandler, javax.swing.plaf.basic.BasicTreeUI.MouseInputHandler, javax.swing.plaf.basic.BasicTreeUI.NodeDimensionsHandler, javax.swing.plaf.basic.BasicTreeUI.PropertyChangeHandler, javax.swing.plaf.basic.BasicTreeUI.SelectionModelPropertyChangeHandler, javax.swing.plaf.basic.BasicTreeUI.TreeExpansionHandler, javax.swing.plaf.basic.BasicTreeUI.TreeModelHandler, javax.swing.plaf.basic.BasicTreeUI.TreeSelectionHandler

Field Summary

Fields inherited from class javax.swing.plaf.basic.BasicTreeUI

cellEditor, collapsedIcon, createdCellEditor, createdRenderer, currentCellRenderer, depthOffset, drawingCache, editingComponent, editingPath, editingRow, editorHasDifferentSize, expandedIcon, largeModel, lastSelectedRow, leftChildIndent, nodeDimensions, preferredMinSize, preferredSize, rendererPane, rightChildIndent, stopEditingInCompleteEditing, totalChildIndent, tree, treeModel, treeSelectionModel, treeState, validCachedPreferredSize

Constructor Summary

Constructors

Constructor and Description
QuaquaTreeUI() Creates a new instance.

Method Summary

Modifier and Type	Method and Description
protected javax.swing.event.CellEditorListener	createCellEditorListener() Creates a listener to handle events from the current editor.
protected javax.swing.tree.TreeCellEditor	createDefaultCellEditor() Creates a default cell editor.
protected javax.swing.tree.TreeCellRenderer	createDefaultCellRenderer() Returns the default cell renderer that is used to do the stamping of each node.
protected java.awt.event.FocusListener	createFocusListener() Creates the focus listener for handling keyboard navigation in the JTable.
protected java.awt.event.KeyListener	createKeyListener() Creates the listener reponsible for getting key events from the tree.
protected java.awt.event.MouseListener	createMouseListener()
protected java.beans.PropertyChangeListener	createPropertyChangeListener() Creates a listener that is responsible that updates the UI based on how the tree changes.
protected java.beans.PropertyChangeListener	createSelectionModelPropertyChangeListener() Creates the listener responsible for getting property change events from the selection model.
protected javax.swing.event.TreeExpansionListener	createTreeExpansionListener() Creates and returns the object responsible for updating the treestate when nodes expanded state changes.
protected javax.swing.event.TreeModelListener	createTreeModelListener() Returns a listener that can update the tree when the model changes.
protected javax.swing.event.TreeSelectionListener	createTreeSelectionListener() Creates the listener that updates the display based on selection change methods.
static javax.swing.plaf.ComponentUI	createUI(javax.swing.JComponent c)
protected int	getRowX(int row, int depth) Returns the location, along the x-axis, to render a particular row at.
protected boolean	getShowsRootHandles()
protected void	installDefaults()
protected void	installKeyboardActions()
protected boolean	isMultiSelectEvent(java.awt.event.MouseEvent event) Returning true signifies a mouse event on the node should select from the anchor point.
protected boolean	isToggleEvent(java.awt.event.MouseEvent event)
protected boolean	isToggleSelectionEvent(java.awt.event.MouseEvent event) Returning true signifies a mouse event on the node should toggle the selection of only the row under mouse.
void	paint(java.awt.Graphics gr, javax.swing.JComponent c)
protected void	paintExpandControl(java.awt.Graphics g, java.awt.Rectangle clipBounds, java.awt.Insets insets, java.awt.Rectangle bounds, javax.swing.tree.TreePath path, int row, boolean isExpanded, boolean hasBeenExpanded, boolean isLeaf) Paints the expand (toggle) part of a row.
protected void	paintHorizontalLine(java.awt.Graphics g, javax.swing.JComponent c, int y, int left, int right) Paints a horizontal line.
protected void	paintHorizontalPartOfLeg(java.awt.Graphics g, java.awt.Rectangle clipBounds, java.awt.Insets insets, java.awt.Rectangle bounds, javax.swing.tree.TreePath path, int row, boolean isExpanded, boolean hasBeenExpanded, boolean isLeaf) Paints the horizontal part of the leg.
protected void	paintRow(java.awt.Graphics g, java.awt.Rectangle clipBounds, java.awt.Insets insets, java.awt.Rectangle bounds, javax.swing.tree.TreePath path, int row, boolean isExpanded, boolean hasBeenExpanded, boolean isLeaf, boolean isEnabled, boolean isFocused, boolean isActive) Paints the renderer part of a row.
protected void	paintVerticalLine(java.awt.Graphics g, javax.swing.JComponent c, int x, int top, int bottom) Paints a vertical line.
protected void	paintVerticalPartOfLeg(java.awt.Graphics g, java.awt.Rectangle clipBounds, java.awt.Insets insets, javax.swing.tree.TreePath path) Paints the vertical part of the leg.
protected void	prepareForUIInstall() Invoked after the tree instance variable has been set, but before any defaults/listeners have been installed.
protected void	setShowsRootHandles(boolean newValue) Determines whether the node handles are to be displayed.
protected void	uninstallListeners()

Methods inherited from class javax.swing.plaf.basic.BasicTreeUI

cancelEditing, checkForClickInExpandControl, completeEditing, completeEditing, completeUIInstall, completeUIUninstall, configureLayoutCache, createCellRendererPane, createComponentListener, createLayoutCache, createNodeDimensions, drawCentered, drawDashedHorizontalLine, drawDashedVerticalLine, ensureRowsAreVisible, getBaseline, getBaselineResizeBehavior, getCellEditor, getCellRenderer, getClosestPathForLocation, getCollapsedIcon, getDropLineRect, getEditingPath, getExpandedIcon, getHashColor, getHorizontalLegBuffer, getLastChildPath, getLeftChildIndent, getMaximumSize, getMinimumSize, getModel, getPathBounds, getPathForRow, getPreferredMinSize, getPreferredSize, getPreferredSize, getRightChildIndent, getRowCount, getRowForPath, getRowHeight, getSelectionModel, getVerticalLegBuffer, handleExpandControlClick, installComponents, installListeners, installUI, isDropLine, isEditable, isEditing, isLargeModel, isLeaf, isLocationInExpandControl, isRootVisible, paintDropLine, paintRow, pathWasCollapsed, pathWasExpanded, prepareForUIUninstall, selectPathForEvent, setCellEditor, setCellRenderer, setCollapsedIcon, setEditable, setExpandedIcon, setHashColor, setLargeModel, setLeftChildIndent, setModel, setPreferredMinSize, setRightChildIndent, setRootVisible, setRowHeight, setSelectionModel, shouldPaintExpandControl, startEditing, startEditingAtPath, stopEditing, toggleExpandState, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallUI, updateCachedPreferredSize, updateCellEditor, updateDepthOffset, updateExpandedDescendants, updateLayoutCacheExpandedNodes, updateLeadSelectionRow, updateRenderer, updateSize

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, update

Methods inherited from class java.lang.Object

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

Constructor Detail

QuaquaTreeUI

public QuaquaTreeUI()

Creates a new instance.

Method Detail

createUI

public static javax.swing.plaf.ComponentUI createUI(javax.swing.JComponent c)

installDefaults

protected void installDefaults()

Overrides:

installDefaults in class javax.swing.plaf.basic.BasicTreeUI

installKeyboardActions

protected void installKeyboardActions()

Overrides:

installKeyboardActions in class javax.swing.plaf.basic.BasicTreeUI

prepareForUIInstall

protected void prepareForUIInstall()

Invoked after the tree instance variable has been set, but before any defaults/listeners have been installed.

Overrides:

prepareForUIInstall in class javax.swing.plaf.basic.BasicTreeUI

uninstallListeners

protected void uninstallListeners()

Overrides:

uninstallListeners in class javax.swing.plaf.basic.BasicTreeUI

createDefaultCellEditor

protected javax.swing.tree.TreeCellEditor createDefaultCellEditor()

Creates a default cell editor.

Overrides:

createDefaultCellEditor in class javax.swing.plaf.basic.BasicTreeUI

createDefaultCellRenderer

protected javax.swing.tree.TreeCellRenderer createDefaultCellRenderer()

Returns the default cell renderer that is used to do the stamping of each node.

Overrides:

createDefaultCellRenderer in class javax.swing.plaf.basic.BasicTreeUI

createKeyListener

protected java.awt.event.KeyListener createKeyListener()

Creates the listener reponsible for getting key events from the tree.

Overrides:

createKeyListener in class javax.swing.plaf.basic.BasicTreeUI

createSelectionModelPropertyChangeListener

protected java.beans.PropertyChangeListener createSelectionModelPropertyChangeListener()

Creates the listener responsible for getting property change events from the selection model.

Overrides:

createSelectionModelPropertyChangeListener in class javax.swing.plaf.basic.BasicTreeUI

createTreeSelectionListener

protected javax.swing.event.TreeSelectionListener createTreeSelectionListener()

Creates the listener that updates the display based on selection change methods.

Overrides:

createTreeSelectionListener in class javax.swing.plaf.basic.BasicTreeUI

createCellEditorListener

protected javax.swing.event.CellEditorListener createCellEditorListener()

Creates a listener to handle events from the current editor.

Overrides:

createCellEditorListener in class javax.swing.plaf.basic.BasicTreeUI

createTreeExpansionListener

protected javax.swing.event.TreeExpansionListener createTreeExpansionListener()

Creates and returns the object responsible for updating the treestate when nodes expanded state changes.

Overrides:

createTreeExpansionListener in class javax.swing.plaf.basic.BasicTreeUI

createPropertyChangeListener

protected java.beans.PropertyChangeListener createPropertyChangeListener()

Creates a listener that is responsible that updates the UI based on how the tree changes.

Overrides:

createPropertyChangeListener in class javax.swing.plaf.basic.BasicTreeUI

createTreeModelListener

protected javax.swing.event.TreeModelListener createTreeModelListener()

Returns a listener that can update the tree when the model changes.

Overrides:

createTreeModelListener in class javax.swing.plaf.basic.BasicTreeUI

isToggleSelectionEvent

protected boolean isToggleSelectionEvent(java.awt.event.MouseEvent event)

Returning true signifies a mouse event on the node should toggle the selection of only the row under mouse.

Overrides:

isToggleSelectionEvent in class javax.swing.plaf.basic.BasicTreeUI

isToggleEvent

protected boolean isToggleEvent(java.awt.event.MouseEvent event)

Overrides:

isToggleEvent in class javax.swing.plaf.basic.BasicTreeUI

isMultiSelectEvent

protected boolean isMultiSelectEvent(java.awt.event.MouseEvent event)

Returning true signifies a mouse event on the node should select from the anchor point.

Overrides:

isMultiSelectEvent in class javax.swing.plaf.basic.BasicTreeUI

setShowsRootHandles

protected void setShowsRootHandles(boolean newValue)

Determines whether the node handles are to be displayed. Regardless of what value you specify here, the Quaqua look and feel always shows the root handles.

Overrides:

setShowsRootHandles in class javax.swing.plaf.basic.BasicTreeUI

getShowsRootHandles

protected boolean getShowsRootHandles()

Overrides:

getShowsRootHandles in class javax.swing.plaf.basic.BasicTreeUI

paintExpandControl

protected void paintExpandControl(java.awt.Graphics g,
                                  java.awt.Rectangle clipBounds,
                                  java.awt.Insets insets,
                                  java.awt.Rectangle bounds,
                                  javax.swing.tree.TreePath path,
                                  int row,
                                  boolean isExpanded,
                                  boolean hasBeenExpanded,
                                  boolean isLeaf)

Paints the expand (toggle) part of a row. The receiver should NOT modify clipBounds, or insets.

Overrides:

paintExpandControl in class javax.swing.plaf.basic.BasicTreeUI

getRowX

protected int getRowX(int row,
                      int depth)

Returns the location, along the x-axis, to render a particular row at. The return value does not include any Insets specified on the JTree. This does not check for the validity of the row or depth, it is assumed to be correct and will not throw an Exception if the row or depth doesn't match that of the tree.

Overrides:

getRowX in class javax.swing.plaf.basic.BasicTreeUI

Parameters:

row - Row to return x location for

depth - Depth of the row

Returns:

amount to indent the given row.

Since:

1.5

createFocusListener

protected java.awt.event.FocusListener createFocusListener()

Creates the focus listener for handling keyboard navigation in the JTable.

Overrides:

createFocusListener in class javax.swing.plaf.basic.BasicTreeUI

createMouseListener

protected java.awt.event.MouseListener createMouseListener()

Overrides:

createMouseListener in class javax.swing.plaf.basic.BasicTreeUI

paint

public void paint(java.awt.Graphics gr,
                  javax.swing.JComponent c)

Overrides:

paint in class javax.swing.plaf.basic.BasicTreeUI

paintVerticalPartOfLeg

protected void paintVerticalPartOfLeg(java.awt.Graphics g,
                                      java.awt.Rectangle clipBounds,
                                      java.awt.Insets insets,
                                      javax.swing.tree.TreePath path)

Paints the vertical part of the leg. The receiver should NOT modify clipBounds, insets.

Overrides:

paintVerticalPartOfLeg in class javax.swing.plaf.basic.BasicTreeUI

paintHorizontalPartOfLeg

protected void paintHorizontalPartOfLeg(java.awt.Graphics g,
                                        java.awt.Rectangle clipBounds,
                                        java.awt.Insets insets,
                                        java.awt.Rectangle bounds,
                                        javax.swing.tree.TreePath path,
                                        int row,
                                        boolean isExpanded,
                                        boolean hasBeenExpanded,
                                        boolean isLeaf)

Paints the horizontal part of the leg. The receiver should NOT modify clipBounds, or insets.

NOTE: parentRow can be -1 if the root is not visible.

Overrides:

paintHorizontalPartOfLeg in class javax.swing.plaf.basic.BasicTreeUI

paintVerticalLine

protected void paintVerticalLine(java.awt.Graphics g,
                                 javax.swing.JComponent c,
                                 int x,
                                 int top,
                                 int bottom)

Paints a vertical line.

Overrides:

paintVerticalLine in class javax.swing.plaf.basic.BasicTreeUI

paintHorizontalLine

protected void paintHorizontalLine(java.awt.Graphics g,
                                   javax.swing.JComponent c,
                                   int y,
                                   int left,
                                   int right)

Paints a horizontal line.

Overrides:

paintHorizontalLine in class javax.swing.plaf.basic.BasicTreeUI

paintRow

protected void paintRow(java.awt.Graphics g,
                        java.awt.Rectangle clipBounds,
                        java.awt.Insets insets,
                        java.awt.Rectangle bounds,
                        javax.swing.tree.TreePath path,
                        int row,
                        boolean isExpanded,
                        boolean hasBeenExpanded,
                        boolean isLeaf,
                        boolean isEnabled,
                        boolean isFocused,
                        boolean isActive)

Paints the renderer part of a row. The receiver should NOT modify clipBounds, or insets.