org.processmining.experttraceclustering.dialogs

Class BinaryTreeLayout

java.lang.Object

org.processmining.experttraceclustering.dialogs.BinaryTreeLayout

All Implemented Interfaces:

java.awt.LayoutManager, java.awt.LayoutManager2

public class BinaryTreeLayout
extends java.lang.Object
implements java.awt.LayoutManager2

This implementation of a LayoutManager will lay out its components in the form of a binary tree. The root of this tree is located in the top-left corner. The right child of each node, if such child exists, is positioned immediately right of the node whose child it is, including the entire sub-tree of which this child node is the root. The left child of this parent node and its entire sub-tree of which it is the root is then laid out immediately below the lowest point that the sub-tree of the right child reaches. Every node in the tree will have exactly the same size, but no resizing will happen to the preferred size of any component. Not every position of the tree has to be filled, neither does every node need a parent. However, the behaviour of the method {getLines() is undefined in such case. There is also no strict checking of loops or components that have been added multiple times without being removed. In this case, too, the behaviour is undefined. The constraints which this layout manager will accept are strings defining the node in which this component is located. These constraint strings can contain any character, but only the characters 'l' and 'r' are taken into account. The root of the tree should be given the constraint "". In the logic of these constraint strings, this means that no branches have been taken. The direct left child of any node should be given the string formed by taking the parent's constraint string and adding 'l'. The same is true for the direct right child, in which case 'r' has to be added to the parent's constraint string. Finally, this class also includes a way of drawing the lines that connect the nodes of the tree. See getLines() for more information on how to do this.

Author:

Niels Lambrigts (niels.lambrigts@gmail.com), Jochen De Weerdt (Jochen.DeWeerdt@econ.kuleuven.be)

Constructor Summary

Constructors

Constructor and Description
BinaryTreeLayout()

Method Summary

Modifier and Type	Method and Description
void	addLayoutComponent(java.awt.Component comp, java.lang.Object arg1)
void	addLayoutComponent(java.lang.String name, java.awt.Component comp)
float	getLayoutAlignmentX(java.awt.Container target)
float	getLayoutAlignmentY(java.awt.Container target)
java.util.List<org.processmining.plugins.actitrac.utils.Line>	getLines() Generate and return the lines that make up the relations of this tree.
int	getSpacingX() Return the amount of space that is left between any two components on the X-axis.
int	getSpacingY() Return the amount of space that is left between any two components on the Y-axis.
void	invalidateLayout(java.awt.Container target)
void	layoutContainer(java.awt.Container parent)
java.awt.Dimension	maximumLayoutSize(java.awt.Container target)
java.awt.Dimension	minimumLayoutSize(java.awt.Container parent)
java.awt.Dimension	preferredLayoutSize(java.awt.Container parent)
void	removeLayoutComponent(java.awt.Component comp)
void	setSpacingX(int spacingX) Set the amount of space that is left between any two components on the X-axis to the given value.
void	setSpacingY(int spacingY) Set the amount of space that is left between any two components on the Y-axis to the given value.

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryTreeLayout

public BinaryTreeLayout()

Method Detail

addLayoutComponent

public void addLayoutComponent(java.awt.Component comp,
                               java.lang.Object arg1)

Specified by:

addLayoutComponent in interface java.awt.LayoutManager2

addLayoutComponent

public void addLayoutComponent(java.lang.String name,
                               java.awt.Component comp)

Specified by:

addLayoutComponent in interface java.awt.LayoutManager

getLayoutAlignmentX

public float getLayoutAlignmentX(java.awt.Container target)

Specified by:

getLayoutAlignmentX in interface java.awt.LayoutManager2

getLayoutAlignmentY

public float getLayoutAlignmentY(java.awt.Container target)

Specified by:

getLayoutAlignmentY in interface java.awt.LayoutManager2

getLines

public java.util.List<org.processmining.plugins.actitrac.utils.Line> getLines()

Generate and return the lines that make up the relations of this tree. For any node that has a child, the lines will converge to the point in the middle of this component. For any component without children, the lines will converge to the point in the middle of the component on the Y-axis and at the left side of this component. These lines can, for example, be used by the parent component. By drawing these lines in the paint- or paintComponent-method, they could be visualised along with the components that make up the tree.

Returns:

A list of Line objects that make up the parent-child relations of the tree which this BinaryTreeLayout represents.

getSpacingX

public int getSpacingX()

Return the amount of space that is left between any two components on the X-axis.

getSpacingY

public int getSpacingY()

Return the amount of space that is left between any two components on the Y-axis.

Returns:

invalidateLayout

public void invalidateLayout(java.awt.Container target)

Specified by:

invalidateLayout in interface java.awt.LayoutManager2

layoutContainer

public void layoutContainer(java.awt.Container parent)

Specified by:

layoutContainer in interface java.awt.LayoutManager

maximumLayoutSize

public java.awt.Dimension maximumLayoutSize(java.awt.Container target)

Specified by:

maximumLayoutSize in interface java.awt.LayoutManager2

minimumLayoutSize

public java.awt.Dimension minimumLayoutSize(java.awt.Container parent)

Specified by:

minimumLayoutSize in interface java.awt.LayoutManager

preferredLayoutSize

public java.awt.Dimension preferredLayoutSize(java.awt.Container parent)

Specified by:

preferredLayoutSize in interface java.awt.LayoutManager

removeLayoutComponent

public void removeLayoutComponent(java.awt.Component comp)

Specified by:

removeLayoutComponent in interface java.awt.LayoutManager

setSpacingX

public void setSpacingX(int spacingX)

Set the amount of space that is left between any two components on the X-axis to the given value.

setSpacingY

public void setSpacingY(int spacingY)

Set the amount of space that is left between any two components on the Y-axis to the given value.