bibliothek.gui.dock.station.split
Class Placeholder

java.lang.Object
  bibliothek.gui.dock.station.split.SplitNode
      bibliothek.gui.dock.station.split.Placeholder

public class Placeholder
extends SplitNode

A placeholder is a set of Path-keys, each key stands for a Dockable that is currently not visible. Placeholders are not visible to the user (they have no graphical representation), they are only used to place Dockables at their former position.

Author:

Benjamin Sigg

Field Summary

Fields inherited from class bibliothek.gui.dock.station.split.SplitNode

height, width, x, y

Constructor Summary

Placeholder(SplitDockAccess access, long id)
Creates a new placeholder

Method Summary

void	evolve(SplitDockTree.Key key, boolean checkValidity, Map<Leaf,Dockable> linksToSet) Creates or replaces children according to the values found in key.
int	getChildLocation(SplitNode child) Gets the location of a child.
Node	getDividerNode(int x, int y) Gets the Node whose divider area contains the point x/y.
Leaf	getLeaf(Dockable dockable) Gets the leaf which represents dockable.
Dimension	getMinimumSize() Gets the minimal size of this node.
PutInfo	getPut(int x, int y, double factorW, double factorH, Dockable drop) Determines where to drop the Dockable drop if the mouse is at location x/y.
SplitNode	getVisible() Gets the root of a subtree such that the root is visible and such that the is the uppermost visible node.
boolean	insert(SplitDockPathProperty property, int depth, Dockable dockable) If there are elements left in property, then the next node is to be read and the insert-method of the matching child to be called.
boolean	insert(SplitDockPlaceholderProperty property, Dockable dockable) Recursively searches for a node or leaf that uses the placeholder specified by property and inserts the dockable there.
boolean	isInOverrideZone(int x, int y, double factorW, double factorH) Tells whether the coordinates x/y lie inside the override-zone of the SplitDockStation or not.
boolean	isOfUse() Tells whether this node still has any use or can safely be removed from the tree
boolean	isVisible() Tells whether this node (or one of this children) contains element that are visible to the user.
void	setChild(SplitNode child, int location) Adds a child to this node at a given location.
<N> N	submit(SplitTreeFactory<N> factory) Writes the contents of this node into a new tree create by factory.
void	toString(int tabs, StringBuilder out) Writes some contents of this node into out.
void	visit(SplitNodeVisitor visitor) Invokes one of the methods of the visitor for every child in the subtree with this as root.

Methods inherited from class bibliothek.gui.dock.station.split.SplitNode

above, addPlaceholder, create, create, createLeaf, createNode, createPlaceholder, delete, getAccess, getBounds, getHeight, getId, getParent, getPlaceholderMap, getPlaceholders, getRoot, getSize, getStation, getWidth, getX, getY, hasPlaceholder, hasPlaceholders, intersection, movePlaceholderMap, relativeSidePut, removePlaceholder, removePlaceholders, replace, setParent, setPlaceholderMap, setPlaceholders, toString, treeChanged, updateBounds

Methods inherited from class java.lang.Object

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

Constructor Detail

Placeholder

public Placeholder(SplitDockAccess access,
                   long id)

Creates a new placeholder

Parameters:

access - access to the SplitDockStation

id - the unique id of this placeholder

Method Detail

evolve

public void evolve(SplitDockTree.Key key,
                   boolean checkValidity,
                   Map<Leaf,Dockable> linksToSet)

Description copied from class: SplitNode

Creates or replaces children according to the values found in key. Note that this method does not remove any Dockables from the station. They must be removed explicitly using Leaf.setDockable(Dockable, boolean)

Specified by:

evolve in class SplitNode

Parameters:

key - the key to read

checkValidity - whether to ensure that all new Dockables are acceptable or not.

linksToSet - a map that is to be filled with all new Leafs and their Dockables which are not yet set.

getChildLocation

public int getChildLocation(SplitNode child)

Description copied from class: SplitNode

Gets the location of a child.

Specified by:

getChildLocation in class SplitNode

Parameters:

child - a child of this node

Returns:

the location of child or -1 if the child is unknown

getDividerNode

public Node getDividerNode(int x,
                           int y)

Description copied from class: SplitNode

Gets the Node whose divider area contains the point x/y. Only searches in the subtree with this node as root.

Specified by:

getDividerNode in class SplitNode

Parameters:

x - the x-coordinate

y - the y-coordinate

Returns:

the Node containing the point, if no Node was found, null is returned

getLeaf

public Leaf getLeaf(Dockable dockable)

Description copied from class: SplitNode

Gets the leaf which represents dockable.

Specified by:

getLeaf in class SplitNode

Parameters:

dockable - the Dockable whose leaf is searched

Returns:

the leaf or null if no leaf was found

getMinimumSize

public Dimension getMinimumSize()

Description copied from class: SplitNode

Gets the minimal size of this node.

Specified by:

getMinimumSize in class SplitNode

Returns:

the minimal size in pixel

getPut

public PutInfo getPut(int x,
                      int y,
                      double factorW,
                      double factorH,
                      Dockable drop)

Description copied from class: SplitNode

Determines where to drop the Dockable drop if the mouse is at location x/y.

Specified by:

getPut in class SplitNode

Parameters:

x - the x-coordinate of the mouse

y - the y-coordinate of the mouse

factorW - a factor to be multiplied with the relative x and width to get the size in pixel.

factorH - a factor to be multiplied with the relative y and height to get the size in pixel.

drop - the Dockable which will be dropped

Returns:

where to drop the dockable or null if the dockable can't be dropped

insert

public boolean insert(SplitDockPlaceholderProperty property,
                      Dockable dockable)

Description copied from class: SplitNode

Recursively searches for a node or leaf that uses the placeholder specified by property and inserts the dockable there. Also removes the placeholder from this node.

Specified by:

insert in class SplitNode

Parameters:

property - the placeholder to search

dockable - the new element

Returns:

true if the element was inserted, false otherwise

insert

public boolean insert(SplitDockPathProperty property,
                      int depth,
                      Dockable dockable)

Description copied from class: SplitNode

If there are elements left in property, then the next node is to be read and the insert-method of the matching child to be called.
If there are no children, then dockable has to be inserted as new child.
Otherwise this element is to be replaced by a node containing this and the a leaf with dockable.
Subclasses may wary this scheme in order to optimize or to find a better place for the dockable.

Specified by:

insert in class SplitNode

Parameters:

property - a list of nodes

depth - the index of the node that corresponds to this

dockable - the element to insert

Returns:

true if the element was inserted, false otherwise

isInOverrideZone

public boolean isInOverrideZone(int x,
                                int y,
                                double factorW,
                                double factorH)

Description copied from class: SplitNode

Tells whether the coordinates x/y lie inside the override-zone of the SplitDockStation or not.

Specified by:

isInOverrideZone in class SplitNode

Parameters:

x - the x-coordinate of the mouse

y - the y-coordinate of the mouse

factorW - a factor to be multiplied with the relative x and width to get the size in pixel.

factorH - a factor to be multiplied with the relative y and height to get the size in pixel.

Returns:

true if the station should not allow child-stations to make a drop when the mouse is at x/y

setChild

public void setChild(SplitNode child,
                     int location)

Description copied from class: SplitNode

Adds a child to this node at a given location.

Specified by:

setChild in class SplitNode

Parameters:

child - the new child

location - the location of the child

submit

public <N> N submit(SplitTreeFactory<N> factory)

Description copied from class: SplitNode

Writes the contents of this node into a new tree create by factory.

Specified by:

submit in class SplitNode

Type Parameters:

N - the type of element the factory will create

Parameters:

factory - the factory transforming the elements of the tree into a new form.

Returns:

the representation of this node

isVisible

public boolean isVisible()

Description copied from class: SplitNode

Tells whether this node (or one of this children) contains element that are visible to the user.

Specified by:

isVisible in class SplitNode

Returns:

true if this node or one of its children contains a graphical element

getVisible

public SplitNode getVisible()

Description copied from class: SplitNode

Gets the root of a subtree such that the root is visible and such that the is the uppermost visible node.

Specified by:

getVisible in class SplitNode

Returns:

the visible root, can be null, this or any child of this node

isOfUse

public boolean isOfUse()

Description copied from class: SplitNode

Tells whether this node still has any use or can safely be removed from the tree

Specified by:

isOfUse in class SplitNode

Returns:

true if this node has to remain in the tree, false otherwise

visit

public void visit(SplitNodeVisitor visitor)

Description copied from class: SplitNode

Invokes one of the methods of the visitor for every child in the subtree with this as root.

Specified by:

visit in class SplitNode

Parameters:

visitor - the visitor

toString

public void toString(int tabs,
                     StringBuilder out)

Description copied from class: SplitNode

Writes some contents of this node into out.

Specified by:

toString in class SplitNode

Parameters:

tabs - the number of tabs that should be added before the text if a new line is necessary.

out - the container to write into