Package com.vividsolutions.jump.workbench.ui.zoom

Class AbstractZoomTool

java.lang.Object

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

com.vividsolutions.jump.workbench.ui.cursortool.DragTool

com.vividsolutions.jump.workbench.ui.zoom.AbstractZoomTool

All Implemented Interfaces:

CursorTool, MouseListener, MouseMotionListener, EventListener

Direct Known Subclasses:

PanTool, ZoomRealtimeTool, ZoomTool

public abstract class AbstractZoomTool
extends DragTool

Nested Class Summary

Nested classes/interfaces inherited from class com.vividsolutions.jump.workbench.ui.cursortool.AbstractCursorTool

AbstractCursorTool.Listener

Field Summary

Fields

Modifier and Type	Field	Description
protected Image	auxImage
protected int	mouseWheelCount
protected Image	origImage
protected double	scale
protected Point2D.Double	zoomTo

Fields inherited from class com.vividsolutions.jump.workbench.ui.cursortool.DragTool

DEFAULT_VIEW_CLICK_BUFFER, modelDestination, modelSource

Fields inherited from class com.vividsolutions.jump.workbench.ui.cursortool.AbstractCursorTool

isLinuxOS, panel

Constructor Summary

Constructors

Constructor	Description
AbstractZoomTool(WorkbenchContext context)

Method Summary

Modifier and Type	Method	Description
void	cacheImage()
Image	createImageIfNeeded(Image currImage)	Creates a new Image if currImage doesn't exist or is the wrong size for the panel.
void	drawImage(int dx, int dy, double scale)
protected void	gestureFinished()
boolean	getAnimatingZoom()
protected Point2D	getCentre()
Cursor	getCursor()
Icon	getIcon()
void	mouseWheelMoved(MouseWheelEvent e)
protected void	scaleImageAtCentre(double zoomFactor)
protected void	scaleImageAtPoint(Point2D p, double zoomFactor)
boolean	setAnimatingZoom(boolean animating)
protected void	zoomAt(Point2D p, double zoomFactor, boolean animatingZoom)

Methods inherited from class com.vividsolutions.jump.workbench.ui.cursortool.DragTool

deactivate, getBoxInModelCoordinates, getModelDestination, getModelSource, getShape, getShape, getViewDestination, getViewSource, modelClickBuffer, mouseDragged, mousePressed, mouseReleased, setModelDestination, setModelSource, setViewClickBuffer, setViewDestination, setViewSource, wasClick

Methods inherited from class com.vividsolutions.jump.workbench.ui.cursortool.AbstractCursorTool

activate, add, allowSnapping, cancelGesture, check, cleanup, clearImage, clearShape, componentWithFocusIsHandledByCursorTools, createCursor, createCursor, createCursor, createStandardSnappingPolicies, drawImageXOR, drawImageXOR, drawShapeXOR, drawShapeXOR, execute, execute, fireGestureFinished, getColor, 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 java.lang.Object

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

Field Detail

origImage

protected Image origImage

auxImage

protected Image auxImage

scale

protected double scale

mouseWheelCount

protected int mouseWheelCount

zoomTo

protected Point2D.Double zoomTo

Constructor Detail

AbstractZoomTool

public AbstractZoomTool(WorkbenchContext context)

Method Detail

setAnimatingZoom

public boolean setAnimatingZoom(boolean animating)

getAnimatingZoom

public boolean getAnimatingZoom()

getIcon

public Icon getIcon()

Returns:

null to use a default icon

getCursor

public Cursor getCursor()

Specified by:

getCursor in interface CursorTool

Overrides:

getCursor in class AbstractCursorTool

gestureFinished

protected void gestureFinished()
                        throws NoninvertibleTransformException

Specified by:

gestureFinished in class AbstractCursorTool

Throws:

NoninvertibleTransformException

mouseWheelMoved

public void mouseWheelMoved(MouseWheelEvent e)

scaleImageAtCentre

protected void scaleImageAtCentre(double zoomFactor)

scaleImageAtPoint

protected void scaleImageAtPoint(Point2D p,
                                 double zoomFactor)

createImageIfNeeded

public Image createImageIfNeeded(Image currImage)

Creates a new Image if currImage doesn't exist or is the wrong size for the panel.

Parameters:

currImage - an image buffer

Returns:

a new image, or the existing one if it's compatible

cacheImage

public void cacheImage()

getCentre

protected Point2D getCentre()
                     throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

zoomAt

protected void zoomAt(Point2D p,
                      double zoomFactor,
                      boolean animatingZoom)
               throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

drawImage

public void drawImage(int dx,
                      int dy,
                      double scale)