y.view
Class HotSpotMode

java.lang.Object
  |
  +--y.view.ViewMode
        |
        +--y.view.HotSpotMode

All Implemented Interfaces:

EventListener, MouseInputListener, MouseListener, MouseMotionListener

Direct Known Subclasses:

HierarchyHotSpotMode

public class HotSpotMode

extends ViewMode

Handles hotspot drags. Causes selected nodes to change their size. when the user drags on a hot spot visible around such a node.

The mode is activated when the mouse is moved over an hotspot point. It changes the mouse-cursor according to the hotspot point. In this state the HotSpotMode is *inactive*. When the left mouse button is pressed it goes into *active* mode.

Field Summary

Fields inherited from class y.view.ViewMode

lastClickEvent, lastDragEvent, lastPressEvent, lastReleaseEvent, originalX, originalY, view

Constructor Summary

HotSpotMode()
Instantiates a new HotSportMode.

HotSpotMode(ViewContainer vc)
Instantiates a new HotSpotMode for a given ViewContainer

Method Summary

static Cursor	getCursor(byte hotSpotType) Returns a suitable cursor for the given hotSpotType.
void	mouseDraggedLeft(double x, double y) Resizes selected nodes.
void	mousePressedLeft(double x, double y) Initiates resizing of selected nodes.
void	mouseReleasedLeft(double x, double y) Terminates resizing of selected nodes.
protected void	updateNodeRealizerBounds(NodeRealizer vr, double x, double y, double w, double h) This method will be invoked by this view mode when the current bounds of a node need to be updated.

Methods inherited from class y.view.ViewMode

activate, getGraph2D, getGridX, getGridY, getHitInfo, getHitInfo, getLastHitInfo, getName, init, isGrabFocusEnabled, isGridMode, mouseClicked, mouseClicked, mouseDragged, mouseDraggedMiddle, mouseDraggedRight, mouseEntered, mouseExited, mouseMoved, mouseMoved, mousePressed, mousePressedMiddle, mousePressedRight, mouseReleased, mouseReleased, mouseReleasedMiddle, mouseReleasedRight, mouseShiftPressedLeft, mouseShiftPressedMiddle, mouseShiftPressedRight, mouseShiftReleasedLeft, mouseShiftReleasedMiddle, mouseShiftReleasedRight, reactivateParent, setActiveView, setChild, setChild, setGrabFocusEnabled, setGridMode, setLastHitInfo, setName, setParent, translateX, translateY

Methods inherited from class java.lang.Object

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

Constructor Detail

HotSpotMode

public HotSpotMode(ViewContainer vc)

Instantiates a new HotSpotMode for a given ViewContainer

HotSpotMode

public HotSpotMode()

Instantiates a new HotSportMode.

Method Detail

mousePressedLeft

public void mousePressedLeft(double x,
                             double y)

Initiates resizing of selected nodes.

Overrides:

mousePressedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

mouseDraggedLeft

public void mouseDraggedLeft(double x,
                             double y)

Resizes selected nodes.

Overrides:

mouseDraggedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

updateNodeRealizerBounds

protected void updateNodeRealizerBounds(NodeRealizer vr,
                                        double x,
                                        double y,
                                        double w,
                                        double h)

This method will be invoked by this view mode when the current bounds of a node need to be updated.

Parameters:

vr - the realizer of the node whose bounds shoud change.

x - the desired x-coordinate of the node bounds.

y - the desired y-coordinate of the node bounds.

w - the desired width of the node.

h - the desired height of the node.

mouseReleasedLeft

public void mouseReleasedLeft(double x,
                              double y)

Terminates resizing of selected nodes.

Overrides:

mouseReleasedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

getCursor

public static Cursor getCursor(byte hotSpotType)

Returns a suitable cursor for the given hotSpotType. The cursor indicates the kind of resize action that is being performed.