Package org.eclipse.gef.editparts
Class GridLayer
java.lang.Object
org.eclipse.draw2d.Figure
org.eclipse.draw2d.Layer
org.eclipse.draw2d.FreeformLayer
org.eclipse.gef.editparts.GridLayer
- All Implemented Interfaces:
FreeformFigure
,IFigure
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
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Nested Class Summary
Nested classes/interfaces inherited from class org.eclipse.draw2d.Figure
Figure.FigureIterator, Figure.IdentitySearch, Figure.ReverseFigureChildrenIterator
Nested classes/interfaces inherited from interface org.eclipse.draw2d.IFigure
IFigure.NoInsets
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected int
Field indicating the horizontal grid spacingprotected int
Field for the vertical grid spacingprotected Point
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
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Constructor Summary
ConstructorsConstructorDescriptionConstructor Sets the default grid color: ColorConstants.lightGray -
Method Summary
Modifier and TypeMethodDescriptiongetPreferredSize
(int wHint, int hHint) Overridden to indicate no preferred size.protected void
paintFigure
(Graphics graphics) protected void
Paints the grid.void
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, getChildrenRevIterable, getClientArea, getClientArea, getClippingStrategy, getCursor, getFlag, getFont, getForegroundColor, getInsets, getLayoutManager, getListeners, getListenersIterable, 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, optimizeClip, 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, setClippingStrategy, 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, getClippingStrategy, getCursor, getFont, getForegroundColor, getInsets, getLayoutManager, getLocalBackgroundColor, 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, isOpaque, isRequestFocusEnabled, isShowing, isVisible, paint, removeAncestorListener, removeCoordinateListener, removeFigureListener, removeFocusListener, removeKeyListener, removeLayoutListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, revalidate, setBackgroundColor, setBorder, setBounds, setClippingStrategy, setConstraint, setCursor, setEnabled, setFocusTraversable, setFont, setForegroundColor, setLayoutManager, setLocation, setMaximumSize, setMinimumSize, setOpaque, setParent, setPreferredSize, setRequestFocusEnabled, setSize, setSize, setToolTip, setVisible, translate, translateFromParent, translateToAbsolute, translateToParent, translateToRelative, validate
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Field Details
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gridX
protected int gridXField indicating the horizontal grid spacing -
gridY
protected int gridYField for the vertical grid spacing -
origin
Field indicating what the grid origin is. This is used simply to determine the offset from 0,0.
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Constructor Details
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GridLayer
public GridLayer()Constructor Sets the default grid color: ColorConstants.lightGray
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Method Details
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getPreferredSize
Overridden to indicate no preferred size. The grid layer should not affect the size of the layered pane in which it is placed.- Specified by:
getPreferredSize
in interfaceIFigure
- Overrides:
getPreferredSize
in classFigure
- See Also:
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paintFigure
- Overrides:
paintFigure
in classFigure
- See Also:
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paintGrid
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 thevisibility
property is set to true.- Parameters:
g
- The Graphics object to be used to do the painting- See Also:
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setOrigin
Sets the origin of the grid. The origin is used only to determine the offset from 0,0.- Parameters:
p
- the origin
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setSpacing
Sets the horizontal and vertical spacing of the grid. A grid spacing of 0 will be replaced with thedefault
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
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