y.view.hierarchy
Class HierarchyCreateEdgeMode

java.lang.Object
  y.view.ViewMode
      y.view.CreateEdgeMode
          y.view.hierarchy.HierarchyCreateEdgeMode

All Implemented Interfaces:

MouseListener, MouseMotionListener, EventListener, MouseInputListener

public class HierarchyCreateEdgeMode
extends CreateEdgeMode

A specialized CreateEdgeMode suitable for graphs that contain groups nodes.

Field Summary

Fields inherited from class y.view.ViewMode

ACTIVE_PROPERTY, ACTIVE_VIEW_PROPERTY, CHILD_MODE_PROPERTY, EDITING_PROPERTY, GRAB_FOCUS_ENABLED_PROPERTY, lastClickEvent, lastDragEvent, lastMoveEvent, lastPressEvent, lastReleaseEvent, MODIFIER_MASK_PROPERTY, NAME_PROPERTY, originalX, originalY, PARENT_MODE_PROPERTY, view

Constructor Summary

HierarchyCreateEdgeMode()

Method Summary

protected boolean	acceptBend(Node start, Node hitNode, double x, double y) Apart from the default behavior, also accept a bend if its coordinate lies within the inner region of a group node.
protected HitInfo	createLabelHitInfo(double x, double y) Performs a hit test for a group node label at the specified location.
int	getGroupBorderWidth() returns the width the active group node border.
boolean	isConnectOnGroupNodeLabelEnabled() Returns whether or not a bend will be created when the mouse is released on the first label of a group node.
void	setConnectOnGroupNodeLabelEnabled(boolean enabled) Whether or not to connect an edge to a group node when the mouse is released on its first label.
void	setGroupBorderWidth(int groupBorderWidth) Sets the width of the active group node border.

Methods inherited from class y.view.CreateEdgeMode

acceptSourceNode, acceptTargetNode, addBend, allowBendCreation, allowSelfloopCreation, cancelEdgeCreation, cancelEditing, createDummyEdgeRealizer, createDummySourceNodeRealizer, createDummyTargetNodeRealizer, createEdge, createTargetNodeHitInfo, determineHitNode, doAllowBendCreation, doAllowSelfloopCreation, edgeCreated, edgeMoved, getCancelKeyCode, getDummyEdgeRealizer, getDummySourceNodeRealizer, getDummyTargetNodeRealizer, getSourcePortOffset, getTargetPortOffset, init, isEarlyEdgeCancelingEnabled, isOrthogonalEdgeCreation, mouseDraggedLeft, mouseMoved, mousePressedLeft, mouseReleasedLeft, mouseReleasedRight, mouseShiftPressedLeft, mouseShiftReleasedLeft, reactivateParent, removeBend, setCancelKeyCode, setEarlyEdgeCancelingEnabled, setOrthogonalEdgeCreation, sourceNodeDeclined, targetNodeDeclined

Methods inherited from class y.view.ViewMode

activate, addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, getChild, getGraph2D, getGridX, getGridY, getHitInfo, getHitInfo, getLastHitInfo, getModifierMask, getName, getParent, isActive, isEditing, isGrabFocusEnabled, isGridMode, isModifierPressed, mouseClicked, mouseClicked, mouseDragged, mouseDraggedMiddle, mouseDraggedRight, mouseEntered, mouseExited, mouseMoved, mousePressed, mousePressedMiddle, mousePressedRight, mouseReleased, mouseReleased, mouseReleasedMiddle, mouseShiftPressedMiddle, mouseShiftPressedRight, mouseShiftReleasedMiddle, mouseShiftReleasedRight, removePropertyChangeListener, removePropertyChangeListener, setActiveView, setChild, setChild, setEditing, setGrabFocusEnabled, setGridMode, setLastHitInfo, setModifierMask, setName, setParent, translateX, translateY

Methods inherited from class java.lang.Object

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

Constructor Detail

HierarchyCreateEdgeMode

public HierarchyCreateEdgeMode()

Method Detail

acceptBend

protected boolean acceptBend(Node start,
                             Node hitNode,
                             double x,
                             double y)

Apart from the default behavior, also accept a bend if its coordinate lies within the inner region of a group node. A coordinate that lies on the border of the group node will not be accepted. Optionally, a coordinate inside the label of a group node will also not be accepted.

Overrides:

acceptBend in class CreateEdgeMode

Parameters:

start - the node from where edge creation started

hitNode - the node that was hit at the given location

x - the x-coordinate of the current location

y - the y-coordinate of the current location

See Also:

getGroupBorderWidth(), isConnectOnGroupNodeLabelEnabled()

setGroupBorderWidth

public void setGroupBorderWidth(int groupBorderWidth)

Sets the width of the active group node border. By default the border width is set to 10.

See Also:

acceptBend(Node, Node, double, double)

getGroupBorderWidth

public int getGroupBorderWidth()

returns the width the active group node border.

See Also:

setGroupBorderWidth(int)

isConnectOnGroupNodeLabelEnabled

public boolean isConnectOnGroupNodeLabelEnabled()

Returns whether or not a bend will be created when the mouse is released on the first label of a group node.

setConnectOnGroupNodeLabelEnabled

public void setConnectOnGroupNodeLabelEnabled(boolean enabled)

Whether or not to connect an edge to a group node when the mouse is released on its first label. By default this feature is enabled.

See Also:

acceptBend(Node, Node, double, double)

createLabelHitInfo

protected HitInfo createLabelHitInfo(double x,
                                     double y)

Performs a hit test for a group node label at the specified location.