salvo.jesus.graph.visual

Class GraphPanelNormalState

java.lang.Object

salvo.jesus.graph.visual.GraphPanelState

salvo.jesus.graph.visual.GraphPanelNormalState

All Implemented Interfaces:

Serializable

public class GraphPanelNormalState
extends GraphPanelState

State object that represents the normal mode in a GraphPanel. Normal mode being 1) drag vertex and right click on VisualGraphComponents to cause a popup menu to be displayed.

Author:

Jesus M. Salvo Jr.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GraphPanelNormalState()
GraphPanelNormalState(GraphPanel gpanel) Creates a GraphPanelNormalState object for the specified GraphPanel object.

Method Summary

Modifier and Type	Method and Description
GraphPanelState	mouseDragged(MouseEvent e) If there was a VisualVertex object selected during the mousePressed() method, then drag the VisualVertex object to the new location specfied by the MouseEvent e.
GraphPanelState	mouseMoved(MouseEvent e) This method sets the cursor to a MOVE_CURSOR whenever the cursor enters a VisualVertex object.
GraphPanelState	mousePressed(MouseEvent e) If there is a VisualGraphComponent at the coordinate specified in the MouseEvent e, then a JPopupMenu will be shown by calling the popup() method whose context is the selected VisualGraphComponent.
GraphPanelState	mouseReleased(MouseEvent e) Shows a popup menu if there was a VisualGraphComponent during the mousePressed() event.
void	paint(Graphics2D g2d) Call VisualGraph.paint() method, passing the Graphics2D context and the targetvertex

Methods inherited from class salvo.jesus.graph.visual.GraphPanelState

informTargetVisualGraphComponentOfKeyEvent, informTargetVisualGraphComponentOfMouseEvent, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, recommendState, setGraphPanel

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphPanelNormalState

public GraphPanelNormalState(GraphPanel gpanel)

Creates a GraphPanelNormalState object for the specified GraphPanel object.

GraphPanelNormalState

public GraphPanelNormalState()

Method Detail

mousePressed

public GraphPanelState mousePressed(MouseEvent e)

If there is a VisualGraphComponent at the coordinate specified in the MouseEvent e, then a JPopupMenu will be shown by calling the popup() method whose context is the selected VisualGraphComponent.

Overrides:

mousePressed in class GraphPanelState

Parameters:

e - the MouseEvent, as it was received by the GraphPanel.

Returns:

the resulting state, either this state again, or a new state. GraphPanel will take this as the new state.

mouseReleased

public GraphPanelState mouseReleased(MouseEvent e)

Shows a popup menu if there was a VisualGraphComponent during the mousePressed() event.

Overrides:

mouseReleased in class GraphPanelState

Parameters:

e - the MouseEvent, as it was received by the GraphPanel.

Returns:

the resulting state, either this state again, or a new state. GraphPanel will take this as the new state.

mouseDragged

public GraphPanelState mouseDragged(MouseEvent e)

If there was a VisualVertex object selected during the mousePressed() method, then drag the VisualVertex object to the new location specfied by the MouseEvent e.

Overrides:

mouseDragged in class GraphPanelState

Parameters:

e - the MouseEvent, as it was received by the GraphPanel.

Returns:

the resulting state, either this state again, or a new state. GraphPanel will take this as the new state.

mouseMoved

public GraphPanelState mouseMoved(MouseEvent e)

This method sets the cursor to a MOVE_CURSOR whenever the cursor enters a VisualVertex object. The cursor is reset to its original when the mouse cursor leaves a VisualVertex object.

Overrides:

mouseMoved in class GraphPanelState

Parameters:

e - the MouseEvent, as it was received by the GraphPanel.

Returns:

the resulting state, either this state again, or a new state. GraphPanel will take this as the new state.

paint

public void paint(Graphics2D g2d)

Call VisualGraph.paint() method, passing the Graphics2D context and the targetvertex

Specified by:

paint in class GraphPanelState