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Java Source Code / Java Documentation » IDE Netbeans » api » org.netbeans.api.visual.widget

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.netbeans.api.visual.widget .Widget

org.netbeans.api.visual.widget .ConnectionWidget

All known Subclasses:   org.netbeans.api.visual.widget .FreeConnectionWidget,  org.netbeans.api.visual.vmd .VMDConnectionWidget,
ConnectionWidget
public class ConnectionWidget extends Widget (Code)
This class represents a connection between two location. The locations are resolved by Anchors. The path of the connection is specified by control points which are resolved by Routers (DirectRouter is used by default).
The connection is rendered using the foreground color and a specified stroke. It also renders control points, end points (first and last control points) and anchors. The shape of points are defined by assigned AnchorShape and PointShape.
For speed optimalization, the connection widget are usually placed in the a separate layer widget that is rendered after the main layer with widgets (that used anchors depends on) is rendered.
Line color is defined by foregroundColor property. Note: If you are changing a state of the ConnectionWidget (e.g. using it as a representation of an object in ObjectScene, GraphScene or GraphPinScene classes, then the ConnectionWidget.notifyStateChanged method is automatically called. The built-in implementation of this method overrides foregroundColor based on a new state of the widget (the particular color is resolved by the LookFeel of the scene).
author:
   David Kaspar

Inner Class :public enum RoutingPolicy

Constructor Summary
public ConnectionWidget(Scene scene)
     Creates a connection widget.

Method Summary
protected Rectangle calculateClientArea()
     Calculates a client area of the connection widget.
final public void calculateRouting()
     Forces path routing.
public Point getControlPoint(int index)
     Returns a location of control point at the specified index in the list of control points.
public int getControlPointCutDistance()
     Returns the cut distance at control points.
final public int getControlPointHitAt(Point localLocation)

public PointShape getControlPointShape()
     Returns a point shape of control points of the connection widget.
public List<Point> getControlPoints()
     Returns a list of control points.
final public Cursor getControlPointsCursor()
     Returns the cursor for control point.
protected Cursor getCursorAt(Point localLocation)
     Returns a cursor for a specified local location in the widget.
public PointShape getEndPointShape()
     Returns a point shape of end points of the connection widget.
final public Point getFirstControlPoint()
     Returns the first control point.
final public Point getLastControlPoint()
     Returns the last control point.
final public Color getLineColor()
     Returns line color of the widget.
final public Router getRouter()
     Returns the control-points-based path router of the connection widget.
final public RoutingPolicy getRoutingPolicy()
     Returns a routing policy.
final public Anchor getSourceAnchor()
     Returns a source anchor of the connection widget.
public Anchor.Entry getSourceAnchorEntry()
     Returns an anchor entry representing the source of the connection widget.
public AnchorShape getSourceAnchorShape()
     Returns an anchor shape of the source of the connection widget.
final public Stroke getStroke()
     Returns a stroke of the connection widget.
final public Anchor getTargetAnchor()
     Returns a target anchor of the connection widget.
public Anchor.Entry getTargetAnchorEntry()
     Returns an anchor entry representing the target of the connection widget.
public AnchorShape getTargetAnchorShape()
     Returns an anchor shape of the target of the connection widget.
public double getTargetAnchorShapeRotation()
     Returns the rotation of the target anchor shape.
final public boolean isFirstControlPointHitAt(Point localLocation)
     Returns whether the local location hits the first control point (also meant to be the source anchor).
public boolean isHitAt(Point localLocation)
     Returns whether a specified local location is a part of the connection widget.
final public boolean isLastControlPointHitAt(Point localLocation)
     Returns whether the local location hits the last control point (also meant to be the target anchor).
final public boolean isPaintControlPoints()

final public boolean isRouted()
     Returns whether the connection widget is routed.
public boolean isValidated()
     Returns whether the connection widget is validated and routed.
public void notifyStateChanged(ObjectState previousState, ObjectState state)
     Implements the widget-state specific look of the widget.
protected void paintWidget()
     Paints the connection widget (the path, the anchor shapes, the control points, the end points).
public void removeConstraint(Widget childWidget)
     Removes a constraint for a child widget.
final public void reroute()
     Schedules the connection widget for re-routing its path.
public void setConstraint(Widget childWidget, LayoutFactory.ConnectionWidgetLayoutAlignment alignment, float placementInPercentage)
     Sets a constraint for a child widget when ConnectionWidgetLayout (by default) is used.
public void setConstraint(Widget childWidget, LayoutFactory.ConnectionWidgetLayoutAlignment alignment, int placementAtDistance)
     Sets a constraint for a child widget when ConnectionWidgetLayout (by default) is used.
public void setControlPointCutDistance(int controlPointCutDistance)
     Sets the cut distance at control points.
public void setControlPointShape(PointShape controlPointShape)
     Sets a point shape of control points of the connection widget.
public void setControlPoints(Collection<Point> controlPoints, boolean sceneLocations)
     Sets control points.
final public void setControlPointsCursor(Cursor controlPointsCursor)
     Sets a control points cursor.
public void setEndPointShape(PointShape endPointShape)
     Sets a point shape of end points of the connection widget.
final public void setLineColor(Color lineColor)
     Sets a line color of the widget.
final public void setPaintControlPoints(boolean paintControlPoints)

final public void setRouter(Router router)
     Sets a control-points-based path router of the connection widget.
final public void setRoutingPolicy(RoutingPolicy routingPolicy)
     Sets a routing policy.
final public void setSourceAnchor(Anchor sourceAnchor)
     Sets a source anchor of the connection widget.
public void setSourceAnchorShape(AnchorShape sourceAnchorShape)
     Sets the anchor shape of the source of the connection widget.
final public void setStroke(Stroke stroke)
     Sets a stroke.
final public void setTargetAnchor(Anchor targetAnchor)
     Sets a target anchor of the connection widget.
public void setTargetAnchorShape(AnchorShape targetAnchorShape)
     Sets the anchor shape of the target of the connection widget.

Constructor Detail
ConnectionWidget
public ConnectionWidget(Scene scene)(Code)
Creates a connection widget.
Parameters:
  scene - the scene

Method Detail
calculateClientArea
protected Rectangle calculateClientArea()(Code)
Calculates a client area of the connection widget. the calculated client area

calculateRouting
final public void calculateRouting()(Code)
Forces path routing.

getControlPoint
public Point getControlPoint(int index)(Code)
Returns a location of control point at the specified index in the list of control points.
Parameters:
  index - index of the control point to return the point; null if the control point does not exist

getControlPointCutDistance
public int getControlPointCutDistance()(Code)
Returns the cut distance at control points. the cut distance
since:
   2.5

getControlPointHitAt
final public int getControlPointHitAt(Point localLocation)(Code)
Returns an index of a control point that is hit by the local location
Parameters:
  localLocation - the local location the index; -1 if no control point was hit

getControlPointShape
public PointShape getControlPointShape()(Code)
Returns a point shape of control points of the connection widget. the control points shape

getControlPoints
public List<Point> getControlPoints()(Code)
Returns a list of control points. the list of control points

getControlPointsCursor
final public Cursor getControlPointsCursor()(Code)
Returns the cursor for control point. the cursor
since:
   2.3

getCursorAt
protected Cursor getCursorAt(Point localLocation)(Code)
Returns a cursor for a specified local location in the widget. If paintControlPoints is true and controlPointsCursor is non-null and local location is over a control point, then it return controlPointsCursor. Otherwise it return value from super.getCursorAt method.
Parameters:
  localLocation - the local location the cursor
since:
   2.3

getEndPointShape
public PointShape getEndPointShape()(Code)
Returns a point shape of end points of the connection widget. the end points shape

getFirstControlPoint
final public Point getFirstControlPoint()(Code)
Returns the first control point. the first control point; null, if list of control points is empty

getLastControlPoint
final public Point getLastControlPoint()(Code)
Returns the last control point. the last control point; null, if list of control points is empty

getLineColor
final public Color getLineColor()(Code)
Returns line color of the widget. the line color; null if no line color is specified

getRouter
final public Router getRouter()(Code)
Returns the control-points-based path router of the connection widget. the path router

getRoutingPolicy
final public RoutingPolicy getRoutingPolicy()(Code)
Returns a routing policy. the routing policy
since:
   2.9

getSourceAnchor
final public Anchor getSourceAnchor()(Code)
Returns a source anchor of the connection widget. the source anchor

getSourceAnchorEntry
public Anchor.Entry getSourceAnchorEntry()(Code)
Returns an anchor entry representing the source of the connection widget. the anchor entry representing the source of the connection widget

getSourceAnchorShape
public AnchorShape getSourceAnchorShape()(Code)
Returns an anchor shape of the source of the connection widget. the source anchor shape

getStroke
final public Stroke getStroke()(Code)
Returns a stroke of the connection widget. the stroke

getTargetAnchor
final public Anchor getTargetAnchor()(Code)
Returns a target anchor of the connection widget. the target anchor

getTargetAnchorEntry
public Anchor.Entry getTargetAnchorEntry()(Code)
Returns an anchor entry representing the target of the connection widget. the anchor entry representing the target of the connection widget

getTargetAnchorShape
public AnchorShape getTargetAnchorShape()(Code)
Returns an anchor shape of the target of the connection widget. the target anchor shape

getTargetAnchorShapeRotation
public double getTargetAnchorShapeRotation()(Code)
Returns the rotation of the target anchor shape. the target anchor shape rotation

isFirstControlPointHitAt
final public boolean isFirstControlPointHitAt(Point localLocation)(Code)
Returns whether the local location hits the first control point (also meant to be the source anchor).
Parameters:
  localLocation - the local location true if it hits the first control point

isHitAt
public boolean isHitAt(Point localLocation)(Code)
Returns whether a specified local location is a part of the connection widget. It checks whether the location is close to the control-points-based path (up to 4px from the line), close to the anchors (defined by AnchorShape) or close to the control points (PointShape).
Parameters:
  localLocation - the local locaytion true, if the location is a part of the connection widget

isLastControlPointHitAt
final public boolean isLastControlPointHitAt(Point localLocation)(Code)
Returns whether the local location hits the last control point (also meant to be the target anchor).
Parameters:
  localLocation - the local location true if it hits the last control point

isPaintControlPoints
final public boolean isPaintControlPoints()(Code)
Returns whether the control (and end) points are painted true, if the control points (and end points) are painted

isRouted
final public boolean isRouted()(Code)
Returns whether the connection widget is routed. true if the connection widget is routed

isValidated
public boolean isValidated()(Code)
Returns whether the connection widget is validated and routed. true, if the connection widget is validated and routed

notifyStateChanged
public void notifyStateChanged(ObjectState previousState, ObjectState state)(Code)
Implements the widget-state specific look of the widget.
Parameters:
  previousState - the previous state
Parameters:
  state - the new state

paintWidget
protected void paintWidget()(Code)
Paints the connection widget (the path, the anchor shapes, the control points, the end points).

removeConstraint
public void removeConstraint(Widget childWidget)(Code)
Removes a constraint for a child widget.
Parameters:
  childWidget - the child widget

reroute
final public void reroute()(Code)
Schedules the connection widget for re-routing its path.

setConstraint
public void setConstraint(Widget childWidget, LayoutFactory.ConnectionWidgetLayoutAlignment alignment, float placementInPercentage)(Code)
Sets a constraint for a child widget when ConnectionWidgetLayout (by default) is used.
Parameters:
  childWidget - the child widget for which the constraint is set
Parameters:
  alignment - the alignment specified relatively to the origin point
Parameters:
  placementInPercentage - the placement on a path in percentage of the path length

setConstraint
public void setConstraint(Widget childWidget, LayoutFactory.ConnectionWidgetLayoutAlignment alignment, int placementAtDistance)(Code)
Sets a constraint for a child widget when ConnectionWidgetLayout (by default) is used.
Parameters:
  childWidget - the child widget for which the constraint is set
Parameters:
  alignment - the alignment specified relatively to the origin point
Parameters:
  placementAtDistance - the placement on a path in pixels as a distance from the source anchor

setControlPointCutDistance
public void setControlPointCutDistance(int controlPointCutDistance)(Code)
Sets the cut distance at control points.
Parameters:
  controlPointCutDistance - if positive number, then the path is cut to render smooth corners;otherwise the path is rendered using control points only
since:
   2.5

setControlPointShape
public void setControlPointShape(PointShape controlPointShape)(Code)
Sets a point shape of control points of the connection widget.
Parameters:
  controlPointShape - the control points shape

setControlPoints
public void setControlPoints(Collection<Point> controlPoints, boolean sceneLocations)(Code)
Sets control points.
Parameters:
  controlPoints - the list of control points
Parameters:
  sceneLocations - if true, then controlPoints argyment is taken as a list of scene locations;if false, then controlPoints argument is taken as a list of local locations

setControlPointsCursor
final public void setControlPointsCursor(Cursor controlPointsCursor)(Code)
Sets a control points cursor. The cursor is used only when mouse is over a visible control point
Parameters:
  controlPointsCursor - the control points cursor
since:
   2.3

setEndPointShape
public void setEndPointShape(PointShape endPointShape)(Code)
Sets a point shape of end points of the connection widget.
Parameters:
  endPointShape - the end points shape

setLineColor
final public void setLineColor(Color lineColor)(Code)
Sets a line color of the widget.
Parameters:
  lineColor - the line color; if null, then the line color will be resolved from LookFeel of the scene.

setPaintControlPoints
final public void setPaintControlPoints(boolean paintControlPoints)(Code)
Sets whether the control (and end) points are painted
Parameters:
  paintControlPoints - if true, then control points are painted

setRouter
final public void setRouter(Router router)(Code)
Sets a control-points-based path router of the connection widget.
Parameters:
  router - the path router

setRoutingPolicy
final public void setRoutingPolicy(RoutingPolicy routingPolicy)(Code)
Sets a routing policy. It invokes re-routing in case of routing policy change unless its is changed to DISABLE_ROUTING.
Parameters:
  routingPolicy - the new routing policy
since:
   2.9

setSourceAnchor
final public void setSourceAnchor(Anchor sourceAnchor)(Code)
Sets a source anchor of the connection widget.
Parameters:
  sourceAnchor - the source anchor

setSourceAnchorShape
public void setSourceAnchorShape(AnchorShape sourceAnchorShape)(Code)
Sets the anchor shape of the source of the connection widget.
Parameters:
  sourceAnchorShape - the source anchor shape

setStroke
final public void setStroke(Stroke stroke)(Code)
Sets a stroke.
Parameters:
  stroke - the stroke

setTargetAnchor
final public void setTargetAnchor(Anchor targetAnchor)(Code)
Sets a target anchor of the connection widget.
Parameters:
  targetAnchor - the target anchor

setTargetAnchorShape
public void setTargetAnchorShape(AnchorShape targetAnchorShape)(Code)
Sets the anchor shape of the target of the connection widget.
Parameters:
  targetAnchorShape - the target anchor shape

Fields inherited from org.netbeans.api.visual.widget.Widget
final static String MESSAGE_NULL_BOUNDS(Code)(Java Doc)

Methods inherited from org.netbeans.api.visual.widget.Widget
final public void addChild(Widget child)(Code)(Java Doc)
final public void addChild(Widget child, Object constraint)(Code)(Java Doc)
final public void addChild(int index, Widget child)(Code)(Java Doc)
final public void addChild(int index, Widget child, Object constraint)(Code)(Java Doc)
final public void addChildren(List<? extends Widget> children)(Code)(Java Doc)
final public void addDependency(Widget.Dependency dependency)(Code)(Java Doc)
final public void bringToBack()(Code)(Java Doc)
final public void bringToFront()(Code)(Java Doc)
protected Rectangle calculateClientArea()(Code)(Java Doc)
final public Point convertLocalToScene(Point localLocation)(Code)(Java Doc)
final public Rectangle convertLocalToScene(Rectangle localRectangle)(Code)(Java Doc)
final public Point convertSceneToLocal(Point sceneLocation)(Code)(Java Doc)
final public Rectangle convertSceneToLocal(Rectangle sceneRectangle)(Code)(Java Doc)
final public WidgetAction.Chain createActions(String tool)(Code)(Java Doc)
void dispatchNotifyAddedCore()(Code)(Java Doc)
void dispatchNotifyRemovedCore()(Code)(Java Doc)
final public boolean equals(Object object)(Code)(Java Doc)
final public AccessibleContext getAccessibleContext()(Code)(Java Doc)
final public WidgetAction.Chain getActions()(Code)(Java Doc)
final public WidgetAction.Chain getActions(String tool)(Code)(Java Doc)
final public Paint getBackground()(Code)(Java Doc)
final public Border getBorder()(Code)(Java Doc)
final public Rectangle getBounds()(Code)(Java Doc)
final public Object getChildConstraint(Widget child)(Code)(Java Doc)
final public List<Widget> getChildren()(Code)(Java Doc)
final public Rectangle getClientArea()(Code)(Java Doc)
final public Cursor getCursor()(Code)(Java Doc)
protected Cursor getCursorAt(Point localLocation)(Code)(Java Doc)
final public Collection<Dependency> getDependencies()(Code)(Java Doc)
final public Font getFont()(Code)(Java Doc)
final public Color getForeground()(Code)(Java Doc)
protected Graphics2D getGraphics()(Code)(Java Doc)
final public Layout getLayout()(Code)(Java Doc)
final public Point getLocation()(Code)(Java Doc)
public Lookup getLookup()(Code)(Java Doc)
final public Dimension getMaximumSize()(Code)(Java Doc)
final public Dimension getMinimumSize()(Code)(Java Doc)
final public Widget getParentWidget()(Code)(Java Doc)
final public Rectangle getPreferredBounds()(Code)(Java Doc)
final public Point getPreferredLocation()(Code)(Java Doc)
final public Dimension getPreferredSize()(Code)(Java Doc)
final public Scene getScene()(Code)(Java Doc)
final public ObjectState getState()(Code)(Java Doc)
final public String getToolTipText()(Code)(Java Doc)
final public int hashCode()(Code)(Java Doc)
final public boolean isCheckClipping()(Code)(Java Doc)
final public boolean isEnabled()(Code)(Java Doc)
public boolean isHitAt(Point localLocation)(Code)(Java Doc)
final public boolean isOpaque()(Code)(Java Doc)
final public boolean isPreferredBoundsSet()(Code)(Java Doc)
protected boolean isRepaintRequiredForRevalidating()(Code)(Java Doc)
public boolean isValidated()(Code)(Java Doc)
final public boolean isVisible()(Code)(Java Doc)
final void justify()(Code)(Java Doc)
void layout(boolean fullValidation)(Code)(Java Doc)
protected void notifyAdded()(Code)(Java Doc)
protected void notifyRemoved()(Code)(Java Doc)
protected void notifyStateChanged(ObjectState previousState, ObjectState state)(Code)(Java Doc)
final public void paint()(Code)(Java Doc)
protected void paintBackground()(Code)(Java Doc)
protected void paintBorder()(Code)(Java Doc)
protected void paintChildren()(Code)(Java Doc)
protected void paintWidget()(Code)(Java Doc)
final public void removeChild(Widget child)(Code)(Java Doc)
final public void removeChildren()(Code)(Java Doc)
final public void removeChildren(List<Widget> widgets)(Code)(Java Doc)
final public void removeDependency(Widget.Dependency dependency)(Code)(Java Doc)
final public void removeFromParent()(Code)(Java Doc)
final public void repaint()(Code)(Java Doc)
final public void resolveBounds(Point location, Rectangle bounds)(Code)(Java Doc)
final public void revalidate(boolean repaintOnly)(Code)(Java Doc)
final public void revalidate()(Code)(Java Doc)
final public void setAccessibleContext(AccessibleContext accessibleContext)(Code)(Java Doc)
final public void setBackground(Paint background)(Code)(Java Doc)
final public void setBorder(Border border)(Code)(Java Doc)
final public void setBorder(javax.swing.border.Border swingBorder)(Code)(Java Doc)
final public void setCheckClipping(boolean checkClipping)(Code)(Java Doc)
final public void setChildConstraint(Widget child, Object constraint)(Code)(Java Doc)
final public void setCursor(Cursor cursor)(Code)(Java Doc)
final public void setEnabled(boolean enabled)(Code)(Java Doc)
final public void setFont(Font font)(Code)(Java Doc)
final public void setForeground(Color foreground)(Code)(Java Doc)
final public void setLayout(Layout layout)(Code)(Java Doc)
final public void setMaximumSize(Dimension maximumSize)(Code)(Java Doc)
final public void setMinimumSize(Dimension minimumSize)(Code)(Java Doc)
final public void setOpaque(boolean opaque)(Code)(Java Doc)
final public void setPreferredBounds(Rectangle preferredBounds)(Code)(Java Doc)
final public void setPreferredLocation(Point preferredLocation)(Code)(Java Doc)
final public void setPreferredSize(Dimension preferredSize)(Code)(Java Doc)
final public void setState(ObjectState state)(Code)(Java Doc)
final public void setToolTipText(String toolTipText)(Code)(Java Doc)
final public void setVisible(boolean visible)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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