org.eclipse.draw2d.text
Class BlockFlowLayout

java.lang.Object
  org.eclipse.draw2d.text.FlowFigureLayout
      org.eclipse.draw2d.text.FlowContainerLayout
          org.eclipse.draw2d.text.BlockFlowLayout

All Implemented Interfaces:

FlowContext, LayoutManager

Direct Known Subclasses:

PageFlowLayout

public class BlockFlowLayout

extends FlowContainerLayout

The layout for BlockFlow figures.

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

Since:

2.1

Field Summary

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

currentLine

Constructor Summary

BlockFlowLayout(BlockFlow blockFlow)
Creates a new BlockFlowLayout with the given BlockFlow.

Method Summary

void	blockContentsChanged() Marks the blocks contents as changed.
protected void	cleanup() Flush anything pending and free all temporary data used during layout.
protected void	createNewLine() Used by getCurrentLine().
protected void	endBlock() Called by flush(), adds the BlockBox associated with this BlockFlowLayout to the current line and then ends the line.
void	endLine() The current line should be committed if it is occupied, and then set to null.
protected void	flush() Called after FlowContainerLayout.layoutChildren() when all children have been laid out.
protected BlockFlow	getBlockFlow() Returns the BlockFlow associated with this BlockFlowLayout
boolean	getContinueOnSameLine() This method is used to convey layout state to different FlowFigures.
int	getCurrentY() Returns the current Y value.
protected void	layoutLine() Align the line horizontally and then commit it.
protected void	preLayout() Called before layoutChildren() to setup any necessary state.
void	setContinueOnSameLine(boolean value) This method is used to convey layout state to different FlowFigures.
protected void	setupBlock() sets up the single block that contains all of the lines.
protected void	setupLine(LineBox line) Override to setup the line's x, remaining, and available width.

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

addToCurrentLine, getCurrentLine, getWordWidthFollowing, isCurrentLineOccupied, layout, layoutChildren

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

getConstraint, getContext, getFlowFigure, getMinimumSize, getPreferredSize, invalidate, layout, remove, setConstraint, setFlowContext

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockFlowLayout

public BlockFlowLayout(BlockFlow blockFlow)

Creates a new BlockFlowLayout with the given BlockFlow.

Parameters:

blockFlow - the BlockFlow

Method Detail

blockContentsChanged

public void blockContentsChanged()

Marks the blocks contents as changed. This means that children will be invalidated during validation.

Since:

3.1

cleanup

protected void cleanup()

Description copied from class: FlowContainerLayout

Flush anything pending and free all temporary data used during layout.

Overrides:

cleanup in class FlowContainerLayout

See Also:

FlowContainerLayout.cleanup()

getContinueOnSameLine

public boolean getContinueOnSameLine()

Description copied from interface: FlowContext

This method is used to convey layout state to different FlowFigures. This state is cleared when a fragment is added to the current line and once the layout is complete.

Returns:

true if the next fragment should be placed on the current line

See Also:

FlowContext.getContinueOnSameLine()

createNewLine

protected void createNewLine()

Description copied from class: FlowContainerLayout

Used by getCurrentLine().

Specified by:

createNewLine in class FlowContainerLayout

See Also:

FlowContainerLayout.createNewLine()

endBlock

protected void endBlock()

Called by flush(), adds the BlockBox associated with this BlockFlowLayout to the current line and then ends the line.

endLine

public void endLine()

Description copied from interface: FlowContext

The current line should be committed if it is occupied, and then set to null. Otherwise, do nothing.

See Also:

FlowContext.endLine()

getCurrentY

public int getCurrentY()

Description copied from interface: FlowContext

Returns the current Y value.

Returns:

the current Y value

See Also:

FlowContext.getCurrentY()

getBlockFlow

protected final BlockFlow getBlockFlow()

Returns the BlockFlow associated with this BlockFlowLayout

Returns:

the BlockFlow

layoutLine

protected void layoutLine()

Align the line horizontally and then commit it.

flush

protected void flush()

Description copied from class: FlowContainerLayout

Called after FlowContainerLayout.layoutChildren() when all children have been laid out. This method exists to flush the last line.

Specified by:

flush in class FlowContainerLayout

See Also:

FlowContainerLayout.flush()

preLayout

protected void preLayout()

Description copied from class: FlowContainerLayout

Called before layoutChildren() to setup any necessary state.

Specified by:

preLayout in class FlowContainerLayout

See Also:

FlowContainerLayout.preLayout()

setContinueOnSameLine

public void setContinueOnSameLine(boolean value)

Description copied from interface: FlowContext

This method is used to convey layout state to different FlowFigures. This state is cleared when a fragment is added and once the layout is complete.

Parameters:

value - true indicates that the first fragment of the next TextFlow should be laid out on the current line, and not a new one

See Also:

FlowContext.setContinueOnSameLine(boolean)

setupBlock

protected void setupBlock()

sets up the single block that contains all of the lines.

setupLine

protected void setupLine(LineBox line)

Override to setup the line's x, remaining, and available width.

Parameters:

line - the LineBox to set up