de.lmu.ifi.dbs.elki.visualization.gui.overview

Class OverviewPlot

java.lang.Object

de.lmu.ifi.dbs.elki.visualization.gui.overview.OverviewPlot

All Implemented Interfaces:

ResultListener, VisualizationListener, EventListener

public class OverviewPlot
extends Object
implements ResultListener, VisualizationListener

Generate an overview plot for a set of visualizations.

Author:

Erich Schubert, Remigius Wojdanowski

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	OverviewPlot.SelectPlotEvent Event when a plot was selected.

Field Summary

Fields

Modifier and Type	Field and Description
private ArrayList<ActionListener>	actionListeners Action listeners for this plot.
private VisualizerContext	context Visualizer context
private static boolean	DEBUG_LAYOUT Draw red borders around items.
private EventListener	hoverer React to mouse hover events
private Element	hoverlayer Layer for hover elements
private static Logging	LOG Our logging class
static String	OVERVIEW_REFRESHED Event when the overview plot was refreshed.
static String	OVERVIEW_REFRESHING Event when the overview plot started refreshing.
(package private) AtomicReference<Runnable>	pendingRefresh Pending refresh, for lazy refreshing
private VisualizationPlot	plot The SVG plot object.
private Element	plotlayer Layer for plot thumbnail
protected RectangleArranger<PlotItem>	plotmap Map of coordinates to plots.
private double	ratio Screen ratio
private boolean	reinitOnRefresh Reinitialize on refresh
int	screenheight Screen size (used for thumbnail sizing)
int	screenwidth Screen size (used for thumbnail sizing)
private CSSClass	selcss The CSS class used on "selectable" rectangles.
private boolean	single Single view mode
private LayerMap	vistoelem Lookup

Constructor Summary

Constructors

Constructor and Description
OverviewPlot(VisualizerContext context, boolean single) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addActionListener(ActionListener actionListener) Adds an ActionListener to the plot.
private RectangleArranger<PlotItem>	arrangeVisualizations(double width, double height) Recompute the layout of visualizations.
void	destroy() Destroy this overview plot.
private Visualization	embedOrThumbnail(int thumbsize, PlotItem it, VisualizationTask task, Element parent) Produce thumbnail for a visualizer.
SVGPlot	getPlot() Get the SVGPlot object.
double	getRatio()
void	initialize(double ratio) Initialize the plot.
private void	initializePlot() Initialize the SVG plot.
void	lazyRefresh() Trigger a redraw, but avoid excessive redraws.
DetailView	makeDetailView(PlotItem it) Event triggered when a plot was selected.
private void	recalcViewbox() Recompute the view box of the plot.
(package private) void	refresh() Do a refresh (when visibilities have changed).
private void	reinitialize() Refresh the overview plot.
void	resultAdded(Result child, Result parent) A new derived result was added.
void	resultChanged(Result current) Notify that the current result has changed substantially.
void	resultRemoved(Result child, Result parent) A result was removed.
void	setRatio(double ratio)
protected void	triggerSubplotSelectEvent(PlotItem it) When a subplot was selected, forward the event to listeners.
protected boolean	visibleInOverview(VisualizationTask task) Test whether a task should be displayed in the overview plot.
void	visualizationChanged(VisualizationItem child) Visualization has changed.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

Our logging class

OVERVIEW_REFRESHING

public static final String OVERVIEW_REFRESHING

Event when the overview plot started refreshing.

See Also:

Constant Field Values

OVERVIEW_REFRESHED

public static final String OVERVIEW_REFRESHED

Event when the overview plot was refreshed.

See Also:

Constant Field Values

DEBUG_LAYOUT

private static final boolean DEBUG_LAYOUT

Draw red borders around items.

See Also:

Constant Field Values

context

private VisualizerContext context

Visualizer context

plot

private VisualizationPlot plot

The SVG plot object.

plotmap

protected RectangleArranger<PlotItem> plotmap

Map of coordinates to plots.

actionListeners

private ArrayList<ActionListener> actionListeners

Action listeners for this plot.

single

private boolean single

Single view mode

screenwidth

public int screenwidth

Screen size (used for thumbnail sizing)

screenheight

public int screenheight

Screen size (used for thumbnail sizing)

hoverer

private EventListener hoverer

React to mouse hover events

vistoelem

private LayerMap vistoelem

Lookup

plotlayer

private Element plotlayer

Layer for plot thumbnail

hoverlayer

private Element hoverlayer

Layer for hover elements

selcss

private CSSClass selcss

The CSS class used on "selectable" rectangles.

ratio

private double ratio

Screen ratio

pendingRefresh

AtomicReference<Runnable> pendingRefresh

Pending refresh, for lazy refreshing

reinitOnRefresh

private boolean reinitOnRefresh

Reinitialize on refresh

Constructor Detail

OverviewPlot

public OverviewPlot(VisualizerContext context,
            boolean single)

Constructor.

Parameters:

context - Visualizer context

single - Single view mode

Method Detail

arrangeVisualizations

private RectangleArranger<PlotItem> arrangeVisualizations(double width,
                                                double height)

Recompute the layout of visualizations.

Parameters:

width - Initial width

height - Initial height

Returns:

Arrangement

initialize

public void initialize(double ratio)

Initialize the plot.

Parameters:

ratio - Initial ratio

reinitialize

private void reinitialize()

Refresh the overview plot.

initializePlot

private void initializePlot()

Initialize the SVG plot.

embedOrThumbnail

private Visualization embedOrThumbnail(int thumbsize,
                             PlotItem it,
                             VisualizationTask task,
                             Element parent)

Produce thumbnail for a visualizer.

Parameters:

thumbsize - Thumbnail size

it - Plot item

task - Task

parent - Parent element to draw to

refresh

void refresh()

Do a refresh (when visibilities have changed).

visibleInOverview

protected boolean visibleInOverview(VisualizationTask task)

Test whether a task should be displayed in the overview plot.

Parameters:

task - Task to display

Returns:

visibility

recalcViewbox

private void recalcViewbox()

Recompute the view box of the plot.

makeDetailView

public DetailView makeDetailView(PlotItem it)

Event triggered when a plot was selected.

Parameters:

it - Plot item selected

Returns:

sub plot

addActionListener

public void addActionListener(ActionListener actionListener)

Adds an ActionListener to the plot.

Parameters:

actionListener - the ActionListener to be added

triggerSubplotSelectEvent

protected void triggerSubplotSelectEvent(PlotItem it)

When a subplot was selected, forward the event to listeners.

Parameters:

it - PlotItem selected

destroy

public void destroy()

Destroy this overview plot.

getPlot

public SVGPlot getPlot()

Get the SVGPlot object.

Returns:

SVG plot

getRatio

public double getRatio()

Returns:

the ratio

setRatio

public void setRatio(double ratio)

Parameters:

ratio - the ratio to set

lazyRefresh

public final void lazyRefresh()

Trigger a redraw, but avoid excessive redraws.

resultAdded

public void resultAdded(Result child,
               Result parent)

Description copied from interface: ResultListener

A new derived result was added.

Specified by:

resultAdded in interface ResultListener

Parameters:

child - New child result added

parent - Parent result that was added to

resultChanged

public void resultChanged(Result current)

Description copied from interface: ResultListener

Notify that the current result has changed substantially.

Specified by:

resultChanged in interface ResultListener

Parameters:

current - Result that has changed.

resultRemoved

public void resultRemoved(Result child,
                 Result parent)

Description copied from interface: ResultListener

A result was removed.

Specified by:

resultRemoved in interface ResultListener

Parameters:

child - result that was removed

parent - Parent result that was removed from

visualizationChanged

public void visualizationChanged(VisualizationItem child)

Description copied from interface: VisualizationListener

Visualization has changed.

Specified by:

visualizationChanged in interface VisualizationListener

Parameters:

child - Changed visualization