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Eclipse GEF
3.3

org.eclipse.gef.editparts
Class GridLayer

java.lang.Object
  extended by

org.eclipse.draw2d.Figure
      extended by

org.eclipse.draw2d.Layer
          extended by

org.eclipse.draw2d.FreeformLayer
              extended by
org.eclipse.gef.editparts.GridLayer
All Implemented Interfaces:
FreeformFigure, IFigure

public class GridLayer
extends FreeformLayer

This is a layer that displays the grid. The default grid color is light gray. To change the grid color, set the foreground color for this layer.

Since:
3.0

Nested Class Summary
 
Nested classes inherited from class org.eclipse.draw2d. Figure
Figure.FigureIterator, Figure.IdentitySearch
 
Nested classes inherited from class org.eclipse.draw2d. IFigure
IFigure.NoInsets
 
Field Summary
protected  int gridX
          Field indicating the horizontal grid spacing
protected  int gridY
          Field for the vertical grid spacing
protected   Point origin
          Field indicating what the grid origin is.
 
Fields inherited from class org.eclipse.draw2d. Figure
bgColor, border, bounds, fgColor, flags, font, MAX_FLAG, maxSize, minSize, NO_MANAGER, prefSize, toolTip
 
Fields inherited from interface org.eclipse.draw2d. IFigure
MAX_DIMENSION, MIN_DIMENSION, NO_INSETS
 
Constructor Summary
GridLayer ()
          Constructor Sets the default grid color: ColorConstants.lightGray
 
Method Summary
  Dimension getPreferredSize (int wHint, int hHint)
          Overridden to indicate no preferred size.
protected  void paintFigure ( Graphics graphics)
           
protected  void paintGrid ( Graphics g)
          Paints the grid.
 void setOrigin ( Point p)
          Sets the origin of the grid.
 void setSpacing ( Dimension spacing)
          Sets the horizontal and vertical spacing of the grid.
 
Methods inherited from class org.eclipse.draw2d. FreeformLayer
add, addFreeformListener, fireExtentChanged, fireMoved, getFreeformExtent, primTranslate, remove, removeFreeformListener, setFreeformBounds
 
Methods inherited from class org.eclipse.draw2d. Layer
containsPoint, findFigureAt
 
Methods inherited from class org.eclipse.draw2d. Figure
add, add, add, addAncestorListener, addCoordinateListener, addFigureListener, addFocusListener, addKeyListener, addLayoutListener, addListener, addMouseListener, addMouseMotionListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, containsPoint, erase, findDescendantAtExcluding, findFigureAt, findFigureAt, findFigureAtExcluding, findMouseEventTargetAt, findMouseEventTargetInDescendantsAt, fireCoordinateSystemChanged, fireFigureMoved, firePropertyChange, firePropertyChange, firePropertyChange, getBackgroundColor, getBorder, getBounds, getChildren, getClientArea, getClientArea, getCursor, getFlag, getFont, getForegroundColor, getInsets, getLayoutManager, getListeners, getLocalBackgroundColor, getLocalFont, getLocalForegroundColor, getLocation, getMaximumSize, getMinimumSize, getMinimumSize, getParent, getPreferredSize, getSize, getToolTip, getUpdateManager, handleFocusGained, handleFocusLost, handleKeyPressed, handleKeyReleased, handleMouseDoubleClicked, handleMouseDragged, handleMouseEntered, handleMouseExited, handleMouseHover, handleMouseMoved, handleMousePressed, handleMouseReleased, hasFocus, internalGetEventDispatcher, intersects, invalidate, invalidateTree, isCoordinateSystem, isEnabled, isFocusTraversable, isMirrored, isMouseEventTarget, isOpaque, isRequestFocusEnabled, isShowing, isValid, isValidationRoot, isVisible, layout, paint, paintBorder, paintChildren, paintClientArea, removeAll, removeAncestorListener, removeCoordinateListener, removeFigureListener, removeFocusListener, removeKeyListener, removeLayoutListener, removeListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, revalidate, setBackgroundColor, setBorder, setBounds, setChildrenDirection, setChildrenEnabled, setChildrenOrientation, setConstraint, setCursor, setEnabled, setFlag, setFocusTraversable, setFont, setForegroundColor, setLayoutManager, setLocation, setMaximumSize, setMinimumSize, setOpaque, setParent, setPreferredSize, setPreferredSize, setRequestFocusEnabled, setSize, setSize, setToolTip, setValid, setVisible, translate, translateFromParent, translateToAbsolute, translateToParent, translateToRelative, useLocalCoordinates, validate
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.eclipse.draw2d. IFigure
add, add, add, addAncestorListener, addCoordinateListener, addFigureListener, addFocusListener, addKeyListener, addLayoutListener, addMouseListener, addMouseMotionListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, containsPoint, containsPoint, erase, findFigureAt, findFigureAt, findFigureAt, findFigureAtExcluding, findMouseEventTargetAt, getBackgroundColor, getBorder, getBounds, getChildren, getClientArea, getClientArea, getCursor, getFont, getForegroundColor, getInsets, getLayoutManager, getLocalBackgroundColor, getLocalForegroundColor, getMaximumSize, getMinimumSize, getMinimumSize, getParent, getPreferredSize, getSize, getToolTip, getUpdateManager, handleFocusGained, handleFocusLost, handleKeyPressed, handleKeyReleased, handleMouseDoubleClicked, handleMouseDragged, handleMouseEntered, handleMouseExited, handleMouseHover, handleMouseMoved, handleMousePressed, handleMouseReleased, hasFocus, internalGetEventDispatcher, intersects, invalidate, invalidateTree, isCoordinateSystem, isEnabled, isFocusTraversable, isMirrored, isOpaque, isRequestFocusEnabled, isShowing, isVisible, paint, removeAncestorListener, removeCoordinateListener, removeFigureListener, removeFocusListener, removeKeyListener, removeLayoutListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, revalidate, setBackgroundColor, setBorder, setBounds, setConstraint, setCursor, setEnabled, setFocusTraversable, setFont, setForegroundColor, setLayoutManager, setLocation, setMaximumSize, setMinimumSize, setOpaque, setParent, setPreferredSize, setRequestFocusEnabled, setSize, setSize, setToolTip, setVisible, translate, translateFromParent, translateToAbsolute, translateToParent, translateToRelative, validate
 

Field Detail

gridX

protected int gridX
Field indicating the horizontal grid spacing


gridY

protected int gridY
Field for the vertical grid spacing


origin

protected 
Point origin
Field indicating what the grid origin is. This is used simply to determine the offset from 0,0.

Constructor Detail

GridLayer

public GridLayer()
Constructor Sets the default grid color: ColorConstants.lightGray

Method Detail

getPreferredSize

public 
Dimension getPreferredSize(int wHint,
                                  int hHint)
Overridden to indicate no preferred size. The grid layer should not affect the size of the layered pane in which it is placed.

See Also:
Figure.getPreferredSize(int, int)

paintFigure

protected void paintFigure(
Graphics graphics)
See Also:
Figure.paintFigure(org.eclipse.draw2d.Graphics)

paintGrid

protected void paintGrid(
Graphics g)
Paints the grid. Sub-classes can override to customize the grid's look. If this layer is being used with SnapToGrid, this method will only be invoked when the visibility property is set to true.

Parameters:
g - The Graphics object to be used to do the painting
See Also:
FigureUtilities.paintGrid(Graphics, IFigure, Point, int, int)

setOrigin

public void setOrigin(
Point p)
Sets the origin of the grid. The origin is used only to determine the offset from 0,0.

Parameters:
p - the origin

setSpacing

public void setSpacing(
Dimension spacing)
Sets the horizontal and vertical spacing of the grid. A grid spacing of 0 will be replaced with the default spacing. A negative spacing will cause no grid lines to be drawn for that dimension.

Parameters:
spacing - A Dimension representing the horizontal (width) and vertical (height) gaps

Eclipse GEF
3.3

Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.

 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire