de.jaret.util.ui.timebars.model
Class DefaultTimeBarViewState

java.lang.Object
  de.jaret.util.ui.timebars.model.DefaultTimeBarViewState

All Implemented Interfaces:

ITimeBarViewState

public class DefaultTimeBarViewState
extends java.lang.Object
implements ITimeBarViewState

The default implementation of a ITimeBarViewState.

Version:

$Id: DefaultTimeBarViewState.java 800 2008-12-27 22:27:33Z kliem $

Author:

kliem

Field Summary

protected int	_defaultHeight the default height for rows.
protected TimeBarViewerDelegate	_delegate delegate this viewstate is assigned to.
protected java.util.Map<TimeBarRow,java.lang.Boolean>	_drawOverlapping map holding the individual overlapping properties for rows.
protected java.util.Map<TimeBarRow,java.lang.Integer>	_heights map holding the heights.
protected IRowHeightStrategy	_rowHeightStrategy strategy for calculatng row heights.
protected java.util.List<ITimeBarViewStateListener>	_tbvsListeners vies state listeners.
protected boolean	_useVariableRowHeights true if variable row heights should be used, false if fixed heights should be used.

Constructor Summary

DefaultTimeBarViewState(TimeBarViewerDelegate delegate)
Consruct the default view state for a specific delegate.

Method Summary

void	addTimeBarViewStateListener(ITimeBarViewStateListener listener) Add a listener to be informed about row height/width changes.
void	fireRowHeightChanged(TimeBarRow row, int height) Inform the listeners about the new height of a row.
void	fireViewStateChanged() Inform listeners about a massive change in the view state.
int	getDefaultRowHeight() Retrieve the default row height.
boolean	getDrawOverlapping(TimeBarRow row) Check whether the intervals in a certain row should be drawn overlapping.
int	getRowHeight(TimeBarRow row) Retrieve the height of the given row.
IRowHeightStrategy	getRowHeightStrategy() Retrieve the row height strategy if set.
boolean	getUseVariableRowHeights() Retrieve whether to use variable row heights/widths.
void	removeTimeBarViewStateListener(ITimeBarViewStateListener listener) Remove a viewstate listener.
void	setDefaultRowHeight(int height) Set the default height for all rows.
void	setDrawOverlapping(TimeBarRow row, boolean drawOverlapping) Set for a single row whether the intervals should be drawn overlapping (overwriting the global setting done in the viewer/delegate).
void	setRowHeight(TimeBarRow row, int height) Set the height for a specific row.
void	setRowHeightStrategy(IRowHeightStrategy rowHeightStrategy) Set a strategy for height calculation.
void	setUseVariableRowHeights(boolean useVariableRowHeights) Set whether to use variable row heights/widths.

Methods inherited from class java.lang.Object

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

Field Detail

_tbvsListeners

protected java.util.List<ITimeBarViewStateListener> _tbvsListeners

vies state listeners.

_heights

protected java.util.Map<TimeBarRow,java.lang.Integer> _heights

map holding the heights.

_drawOverlapping

protected java.util.Map<TimeBarRow,java.lang.Boolean> _drawOverlapping

map holding the individual overlapping properties for rows.

_useVariableRowHeights

protected boolean _useVariableRowHeights

true if variable row heights should be used, false if fixed heights should be used.

_defaultHeight

protected int _defaultHeight

the default height for rows.

_rowHeightStrategy

protected IRowHeightStrategy _rowHeightStrategy

strategy for calculatng row heights.

_delegate

protected TimeBarViewerDelegate _delegate

delegate this viewstate is assigned to.

Constructor Detail

DefaultTimeBarViewState

public DefaultTimeBarViewState(TimeBarViewerDelegate delegate)

Consruct the default view state for a specific delegate.

Parameters:

delegate - the delegate

Method Detail

getRowHeight

public int getRowHeight(TimeBarRow row)

Retrieve the height of the given row.

Specified by:

getRowHeight in interface ITimeBarViewState

Parameters:

row - row to receive the height for

Returns:

the height of the row

setRowHeight

public void setRowHeight(TimeBarRow row,
                         int height)

Set the height for a specific row.

Specified by:

setRowHeight in interface ITimeBarViewState

Parameters:

row - row to set the height for

height - the height of the row

setRowHeightStrategy

public void setRowHeightStrategy(IRowHeightStrategy rowHeightStrategy)

Set a strategy for height calculation.

Specified by:

setRowHeightStrategy in interface ITimeBarViewState

Parameters:

rowHeightStrategy - the strategy for calculation or null to remove a strategy

getRowHeightStrategy

public IRowHeightStrategy getRowHeightStrategy()

Retrieve the row height strategy if set.

Specified by:

getRowHeightStrategy in interface ITimeBarViewState

Returns:

the strategy or null

fireRowHeightChanged

public void fireRowHeightChanged(TimeBarRow row,
                                 int height)

Inform the listeners about the new height of a row.

Parameters:

row - row

height - new height

fireViewStateChanged

public void fireViewStateChanged()

Inform listeners about a massive change in the view state.

removeTimeBarViewStateListener

public void removeTimeBarViewStateListener(ITimeBarViewStateListener listener)

Remove a viewstate listener.

Specified by:

removeTimeBarViewStateListener in interface ITimeBarViewState

Parameters:

listener - listener to be removed

addTimeBarViewStateListener

public void addTimeBarViewStateListener(ITimeBarViewStateListener listener)

Add a listener to be informed about row height/width changes.

Specified by:

addTimeBarViewStateListener in interface ITimeBarViewState

Parameters:

listener - listener to be informed

setDefaultRowHeight

public void setDefaultRowHeight(int height)

Set the default height for all rows. This height will also be used, if variable heights are not used.

Specified by:

setDefaultRowHeight in interface ITimeBarViewState

Parameters:

height - height

getDefaultRowHeight

public int getDefaultRowHeight()

Retrieve the default row height.

Specified by:

getDefaultRowHeight in interface ITimeBarViewState

Returns:

the default row height

getUseVariableRowHeights

public boolean getUseVariableRowHeights()

Retrieve whether to use variable row heights/widths.

Specified by:

getUseVariableRowHeights in interface ITimeBarViewState

Returns:

true if variable row heights/width should be used

setUseVariableRowHeights

public void setUseVariableRowHeights(boolean useVariableRowHeights)

Set whether to use variable row heights/widths.

Specified by:

setUseVariableRowHeights in interface ITimeBarViewState

Parameters:

useVariableRowHeights - true to use variable row heights/widths. This will have an impact no some performance aspects in the timebar viewer.

getDrawOverlapping

public boolean getDrawOverlapping(TimeBarRow row)

Check whether the intervals in a certain row should be drawn overlapping. If no value had been set, the global value from the delegate is returned.

Specified by:

getDrawOverlapping in interface ITimeBarViewState

Parameters:

row - row to look for

Returns:

true if the intervals shoukd be drawn overlapping

setDrawOverlapping

public void setDrawOverlapping(TimeBarRow row,
                               boolean drawOverlapping)

Set for a single row whether the intervals should be drawn overlapping (overwriting the global setting done in the viewer/delegate).

Specified by:

setDrawOverlapping in interface ITimeBarViewState

Parameters:

row - the row to set the property for

drawOverlapping - true for overlapping drawing