edu.ksu.cis.bnj.gui.components
Class NormalState

java.lang.Object
  salvo.jesus.graph.visual.GraphPanelState
      salvo.jesus.graph.visual.GraphPanelNormalState
          edu.ksu.cis.bnj.gui.components.NormalState

All Implemented Interfaces:

java.io.Serializable

public class NormalState

extends salvo.jesus.graph.visual.GraphPanelNormalState

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. With some adjustments and adding selection box for multiple item selection -- Roby Joehanes

See Also:

Serialized Form

Field Summary

protected salvo.jesus.graph.visual.GraphPanel	gpanel
protected static java.awt.BasicStroke	marquee
protected java.awt.Cursor	movecursor A Cursor object of type Cursor.MOVE_CURSOR
protected NodeManager	owner
protected int	previous_x Stores the previous x-coordinate of targetedvertex when dragging a VisualVertex object.
protected int	previous_y Stores the previous y-coordinate of targetedvertex when dragging a VisualVertex object.
protected java.awt.Cursor	previouscursor Existing cursor prior to changing the cursor.
protected java.awt.Rectangle	selectionBox
protected salvo.jesus.graph.visual.VisualEdge	targetedge VisualEdge object selected during the mousePressed() method
protected salvo.jesus.graph.visual.VisualVertex	targetvertex VisualVertex object selected during the mousePressed() method

Constructor Summary

NormalState(NodeManager owner, salvo.jesus.graph.visual.GraphPanel gpanel)
Creates a GraphPanelNormalState object for the specified GraphPanel object.

Method Summary

salvo.jesus.graph.visual.GraphPanelState	mouseDragged(java.awt.event.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.
salvo.jesus.graph.visual.GraphPanelState	mouseMoved(java.awt.event.MouseEvent e) This method sets the cursor to a MOVE_CURSOR whenever the cursor enters a VisualVertex object.
salvo.jesus.graph.visual.GraphPanelState	mousePressed(java.awt.event.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.
salvo.jesus.graph.visual.GraphPanelState	mouseReleased(java.awt.event.MouseEvent e) Shows a popup menu if there was a VisualGraphComponent during the mousePressed() event.
void	paint(java.awt.Graphics2D g2d)

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

Field Detail

targetvertex

protected salvo.jesus.graph.visual.VisualVertex targetvertex

VisualVertex object selected during the mousePressed() method

targetedge

protected salvo.jesus.graph.visual.VisualEdge targetedge

VisualEdge object selected during the mousePressed() method

previouscursor

protected java.awt.Cursor previouscursor

Existing cursor prior to changing the cursor.

movecursor

protected java.awt.Cursor movecursor

A Cursor object of type Cursor.MOVE_CURSOR

previous_x

protected int previous_x

Stores the previous x-coordinate of targetedvertex when dragging a VisualVertex object.

previous_y

protected int previous_y

Stores the previous y-coordinate of targetedvertex when dragging a VisualVertex object.

gpanel

protected salvo.jesus.graph.visual.GraphPanel gpanel

owner

protected NodeManager owner

marquee

protected static java.awt.BasicStroke marquee

selectionBox

protected java.awt.Rectangle selectionBox

Constructor Detail

NormalState

public NormalState(NodeManager owner,
                   salvo.jesus.graph.visual.GraphPanel gpanel)

Creates a GraphPanelNormalState object for the specified GraphPanel object.

Method Detail

mousePressed

public salvo.jesus.graph.visual.GraphPanelState mousePressed(java.awt.event.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.

mouseReleased

public salvo.jesus.graph.visual.GraphPanelState mouseReleased(java.awt.event.MouseEvent e)

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

mouseDragged

public salvo.jesus.graph.visual.GraphPanelState mouseDragged(java.awt.event.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.

paint

public void paint(java.awt.Graphics2D g2d)

mouseMoved

public salvo.jesus.graph.visual.GraphPanelState mouseMoved(java.awt.event.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.