org.eclipse.draw2d.text
Class BlockFlow

java.lang.Object
  org.eclipse.draw2d.Figure
      org.eclipse.draw2d.text.FlowFigure
          org.eclipse.draw2d.text.BlockFlow

All Implemented Interfaces:

IFigure

Direct Known Subclasses:

FlowPage

public class BlockFlow

extends FlowFigure

A FlowFigure represented by a single BlockBox fragment containing one or more lines. A BlockFlow is a creator of LineBoxes, which its children require during layout. A BlockFlow can be thought of as a paragraph.

BlockFlows should be nested inside other BlockFlows, but it is also valid to place them in InlineFlows. FlowPage can be used as a "root" block and can be added to normal draw2d Figures.

Only FlowFigures can be added to a BlockFlow.

WARNING: This class is not intended to be subclassed by clients.

Since:

2.1

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

Fields inherited from class org.eclipse.draw2d.text.FlowFigure

selectionStart

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

BlockFlow()
Constructs a new BlockFlow.

Method Summary

protected void	contributeBidi(BidiProcessor proc) BlockFlows contribute a paragraph separator so as to keep the Bidi state of the text on either side of this block from affecting each other.
protected FlowFigureLayout	createDefaultFlowLayout() Creates the default layout manager
protected BlockBox	getBlockBox() Returns the BlockBox associated with this.
int	getHorizontalAligment() Returns the horizontal aligment.
int	getOrientation() Returns this block's Bidi orientation.
protected void	invalidateBidi() Overridden to do nothing since a BlockFlow is unaffected by changes in its containing block.
void	paintBorder(Graphics graphics) Paints the border associated with this Figure, if one exists.
void	postValidate() Called after validate has occurred.
void	revalidate() Invalidates this figure and revalidates() its parent.
protected void	revalidateBidi(IFigure origin) A Block will invalidate the Bidi state of all its children, so that it is re-evaluated when this block is next validated.
void	setHorizontalAligment(int value) Sets the horitontal aligment of the block.
void	setOrientation(int orientation) Sets the orientation for this block.
protected boolean	useLocalCoordinates() Returns true if this Figure uses local coordinates.
void	validate() Re-evaluate the Bidi state of all the fragments if it has been invalidated.

Methods inherited from class org.eclipse.draw2d.text.FlowFigure

add, addLeadingWordRequirements, remove, setBidiInfo, setBounds, setFlowContext, setSelection

Methods inherited from class org.eclipse.draw2d.Figure

add, add, add, addAncestorListener, addCoordinateListener, addFigureListener, addFocusListener, addKeyListener, addLayoutListener, addListener, addMouseListener, addMouseMotionListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, containsPoint, containsPoint, erase, findDescendantAtExcluding, findFigureAt, findFigureAt, findFigureAt, findFigureAtExcluding, findMouseEventTargetAt, findMouseEventTargetInDescendantsAt, fireCoordinateSystemChanged, fireFigureMoved, fireMoved, firePropertyChange, firePropertyChange, firePropertyChange, getBackgroundColor, getBorder, getBounds, getChildren, getClientArea, getClientArea, getCursor, getFlag, getFont, getForegroundColor, getInsets, getLayoutManager, getListeners, getLocalBackgroundColor, getLocalForegroundColor, getLocation, getMaximumSize, getMinimumSize, getMinimumSize, getParent, getPreferredSize, getPreferredSize, getSize, getToolTip, getUpdateManager, handleFocusGained, handleFocusLost, handleKeyPressed, handleKeyReleased, handleMouseDoubleClicked, handleMouseDragged, handleMouseEntered, handleMouseExited, handleMouseHover, handleMouseMoved, handleMousePressed, handleMouseReleased, hasFocus, internalGetEventDispatcher, intersects, invalidate, invalidateTree, isCoordinateSystem, isEnabled, isFocusTraversable, isMouseEventTarget, isOpaque, isRequestFocusEnabled, isShowing, isValid, isValidationRoot, isVisible, layout, paint, paintChildren, paintClientArea, paintFigure, primTranslate, removeAll, removeAncestorListener, removeCoordinateListener, removeFigureListener, removeFocusListener, removeKeyListener, removeLayoutListener, removeListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, setBackgroundColor, setBorder, 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

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockFlow

public BlockFlow()

Constructs a new BlockFlow.

Method Detail

contributeBidi

protected void contributeBidi(BidiProcessor proc)

BlockFlows contribute a paragraph separator so as to keep the Bidi state of the text on either side of this block from affecting each other. Since each block is like a different paragraph, it does not contribute any actual text to its containing block.

Overrides:

contributeBidi in class FlowFigure

Parameters:

proc - the BidiProcessor to which contributions should be made

See Also:

FlowFigure.contributeBidi(org.eclipse.draw2d.text.BidiProcessor)

createDefaultFlowLayout

protected FlowFigureLayout createDefaultFlowLayout()

Description copied from class: FlowFigure

Creates the default layout manager

Specified by:

createDefaultFlowLayout in class FlowFigure

Returns:

The default layout

See Also:

FlowFigure.createDefaultFlowLayout()

getOrientation

public int getOrientation()

Returns this block's Bidi orientation. If none was set on this block, it will inherit the one from its containing block. If there is no containing block, it will return the default orientation (SWT.LEFT_TO_RIGHT).

Returns:

SWT.RIGHT_TO_LEFT or SWT.LEFT_TO_RIGHT

Since:

3.1

See Also:

setOrientation(int)

getBlockBox

protected BlockBox getBlockBox()

Returns the BlockBox associated with this.

Returns:

This BlockFlow's BlockBox

getHorizontalAligment

public int getHorizontalAligment()

Returns the horizontal aligment.

Returns:

the hotizontal aligment

invalidateBidi

protected void invalidateBidi()

Overridden to do nothing since a BlockFlow is unaffected by changes in its containing block.

See Also:

org.eclipse.draw2d.text.FlowFigure#invalidateBidi()

paintBorder

public void paintBorder(Graphics graphics)

Description copied from class: Figure

Paints the border associated with this Figure, if one exists.

Overrides:

paintBorder in class Figure

Parameters:

graphics - The Graphics used to paint

See Also:

Figure.paint(org.eclipse.draw2d.Graphics)

postValidate

public void postValidate()

Description copied from class: FlowFigure

Called after validate has occurred. This is used to update the bounds of the FlowFigure to encompass its new flow boxed created during validate.

Specified by:

postValidate in class FlowFigure

See Also:

FlowFigure.postValidate()

revalidate

public void revalidate()

Description copied from interface: IFigure

Invalidates this figure and revalidates() its parent. If a figure does not have a parent, it will request a validation from it UpdateManager. Calling this method does not guarantee that a repaint will occur.

Specified by:

revalidate in interface IFigure

Overrides:

revalidate in class Figure

See Also:

FlowFigure#revalidate(IFigure)

revalidateBidi

protected void revalidateBidi(IFigure origin)

A Block will invalidate the Bidi state of all its children, so that it is re-evaluated when this block is next validated.

Overrides:

revalidateBidi in class FlowFigure

Parameters:

origin - the figure that was revalidated

See Also:

FlowFigure.revalidateBidi(org.eclipse.draw2d.IFigure)

setOrientation

public void setOrientation(int orientation)

Sets the orientation for this block. Orientation can be one of:

• SWT.LEFT_TO_RIGHT
• SWT.RIGHT_TO_LEFT
• SWT.NONE

NONE is used to indicate that orientation should be inherited from the encompassing block, or LEFT_TO_RIGHT if no parent block exists.

Parameters:

orientation - LTR, RTL or NONE

Since:

3.1

setHorizontalAligment

public void setHorizontalAligment(int value)

Sets the horitontal aligment of the block. Valid values are:

• PositionConstants.LEFT
• PositionConstants.RIGHT
• PositionConstants.CENTER

Blocks with a Bidi orientation of SWT.RIGHT_TO_LEFT will be right-aligned if their horizontal alignment is PositionConstants.LEFT, and left-aligned if their alignment is PositionConstants.RIGHT.

Parameters:

value - the aligment

useLocalCoordinates

protected boolean useLocalCoordinates()

Description copied from class: Figure

Returns true if this Figure uses local coordinates. This means its children are placed relative to this Figure's top-left corner.

Overrides:

useLocalCoordinates in class Figure

Returns:

true if this Figure uses local coordinates

See Also:

Figure.useLocalCoordinates()

validate

public void validate()

Re-evaluate the Bidi state of all the fragments if it has been invalidated.

Specified by:

validate in interface IFigure

Overrides:

validate in class Figure

See Also:

IFigure.validate()