Class ConstrainedDragTool

java.lang.Object

com.vividsolutions.jump.workbench.ui.cursortool.AbstractCursorTool

org.openjump.core.ui.plugin.edittoolbox.cursortools.ConstrainedDragTool

All Implemented Interfaces:

CursorTool, MouseListener, MouseMotionListener, EventListener

Direct Known Subclasses:

ConstrainedMoveVertexTool

public abstract class ConstrainedDragTool
extends AbstractCursorTool

The default implementation draws a selection box, but this can be overridden (even to draw nothing).

Nested Class Summary

Nested classes/interfaces inherited from class AbstractCursorTool

AbstractCursorTool.Listener

Field Summary

Fields

Modifier and Type	Field	Description
protected List	coordinates
static final int	DEFAULT_VIEW_CLICK_BUFFER
protected org.locationtech.jts.geom.Coordinate	modelDestination	Modify using #setDestination
protected org.locationtech.jts.geom.Coordinate	modelSource	Modify using #setSource

Fields inherited from class AbstractCursorTool

isLinuxOS, panel

Constructor Summary

Constructors

Constructor	Description
ConstrainedDragTool(WorkbenchContext context)

Method Summary

Modifier and Type	Method	Description
void	activate(LayerViewPanel layerViewPanel)
protected org.locationtech.jts.geom.Coordinate	doConstraint(MouseEvent e)
protected org.locationtech.jts.geom.Envelope	getBoxInModelCoordinates()
List	getCoordinates()
protected org.locationtech.jts.geom.Coordinate	getModelDestination()
protected org.locationtech.jts.geom.Coordinate	getModelSource()
protected Shape	getShape()
protected Shape	getShape(Point2D source, Point2D destination)
protected Point2D	getViewDestination()
protected Point2D	getViewSource()
protected double	modelClickBuffer()
void	mouseDragged(MouseEvent e)
protected void	mouseLocationChanged(MouseEvent e)
void	mousePressed(MouseEvent e)	Begins handling of the drag.
void	mouseReleased(MouseEvent e)
protected void	setModelSource(org.locationtech.jts.geom.Coordinate source)
protected void	setViewClickBuffer(int clickBuffer)	A click is converted into a box by being expanded by this amount in the four directions.
protected void	setViewSource(Point2D source)
protected boolean	wasClick()

Methods inherited from class AbstractCursorTool

add, allowSnapping, cancelGesture, check, cleanup, clearImage, clearShape, componentWithFocusIsHandledByCursorTools, createCursor, createCursor, createCursor, createStandardSnappingPolicies, deactivate, drawImageXOR, drawImageXOR, drawShapeXOR, drawShapeXOR, execute, execute, fireGestureFinished, gestureFinished, getColor, getCursor, getImage, getImagePosition, getName, getPanel, getPanel, getSnapManager, getStroke, getTaskFrame, getWorkbench, getWorkbenchContext, isGestureInProgress, isRightMouseButtonUsed, isRollingBackInvalidEdits, isShapeOnScreen, mouseClicked, mouseEntered, mouseExited, mouseMoved, name, prohibitSnapping, redrawImage, redrawShape, reportNothingToUndoYet, setColor, setControlPressed, setFilling, setPanel, setShiftPressed, setStroke, setup, snap, snap, supportsSnapping, toString, wasControlPressed, wasShiftPressed

Methods inherited from class Object

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

Methods inherited from interface CursorTool

getIcon

Field Details

DEFAULT_VIEW_CLICK_BUFFER

public static final int DEFAULT_VIEW_CLICK_BUFFER

See Also:

• Constant Field Values

modelSource

protected org.locationtech.jts.geom.Coordinate modelSource

Modify using #setSource

modelDestination

protected org.locationtech.jts.geom.Coordinate modelDestination

Modify using #setDestination

coordinates

protected List coordinates

Constructor Details

ConstrainedDragTool

public ConstrainedDragTool(WorkbenchContext context)

Method Details

mousePressed

public void mousePressed(MouseEvent e)

Begins handling of the drag. Subclasses can prevent handling of the drag by overriding this method and not calling it.

Specified by:

mousePressed in interface MouseListener

Overrides:

mousePressed in class AbstractCursorTool

setViewClickBuffer

protected void setViewClickBuffer(int clickBuffer)

A click is converted into a box by being expanded by this amount in the four directions.

wasClick

protected boolean wasClick()

getBoxInModelCoordinates

protected org.locationtech.jts.geom.Envelope getBoxInModelCoordinates()
                                                               throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

modelClickBuffer

protected double modelClickBuffer()

mouseDragged

public void mouseDragged(MouseEvent e)

Specified by:

mouseDragged in interface MouseMotionListener

Overrides:

mouseDragged in class AbstractCursorTool

doConstraint

protected org.locationtech.jts.geom.Coordinate doConstraint(MouseEvent e)
                                                     throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getCoordinates

public List getCoordinates()

mouseLocationChanged

protected void mouseLocationChanged(MouseEvent e)

getModelSource

protected org.locationtech.jts.geom.Coordinate getModelSource()

getModelDestination

protected org.locationtech.jts.geom.Coordinate getModelDestination()

setModelSource

protected void setModelSource(org.locationtech.jts.geom.Coordinate source)

setViewSource

protected void setViewSource(Point2D source)
                      throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

mouseReleased

public void mouseReleased(MouseEvent e)

Specified by:

mouseReleased in interface MouseListener

Overrides:

mouseReleased in class AbstractCursorTool

getShape

protected Shape getShape()
                  throws Exception

Specified by:

getShape in class AbstractCursorTool

Returns:

null if nothing should be drawn

Throws:

Exception - if an Exception occurs during Shape construction

getViewSource

protected Point2D getViewSource()
                         throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getViewDestination

protected Point2D getViewDestination()
                              throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getShape

protected Shape getShape(Point2D source,
 Point2D destination)
                  throws Exception

Returns:

null if nothing should be drawn

Throws:

Exception

activate

public void activate(LayerViewPanel layerViewPanel)

Specified by:

activate in interface CursorTool

Overrides:

activate in class AbstractCursorTool