org.pepstock.charba.client.impl.plugins

Class DatasetsItemsSelector

java.lang.Object

org.pepstock.charba.client.plugins.AbstractPlugin

org.pepstock.charba.client.impl.plugins.DatasetsItemsSelector

All Implemented Interfaces:

Plugin

public final class DatasetsItemsSelector
extends AbstractPlugin

Enables the datasets items selection directly in the the canvas.
It works only for line and bar chart instances and if ZoomPlugin is disable.
It will add mouser listeners to canvas.
Tooltips will be disable to avoid events conflicts.
Overrides also the events which can be caught (only click and touchstart).
It activates also the legend click handler to avoid that all datasets will be hidden.

Author:

Andrea "Stock" Stocchero

See Also:

AtLeastOneDatasetHandler

Field Summary

Fields

Modifier and Type	Field and Description
static DatasetsItemsSelectorOptionsFactory	FACTORY The factory to read options for plugin
static String	ID Plugin ID "charbadatasetsitemsselector".

Method Summary

Modifier and Type	Method and Description
void	cleanSelection(IsChart chart) Clears the selection on the chart.
void	cleanSelection(IsChart chart, boolean fireEvent) Clears the selection on the chart and set if an event should fire on clear action.
static DatasetsItemsSelector	get() Returns the singleton instance of plugin.
double	getPadding(IsChart chart) Returns the padding height used by selection cleaner element if enabled. This is very helpful when you have added padding for your purposes and you need to know the amount of space that the element allocated.
boolean	onBeforeEvent(IsChart chart, PluginEventArgument argument) Called before processing the specified 'event'. If any plugin returns false, the event will be discarded.
void	onBeginDrawing(IsChart chart, boolean overridePreviousUpdate) Called before every drawing cycle, coming from initialization, updating or rendering of chart.
void	onConfigure(IsChart chart) Called before initializing configuration of 'chart'.
void	onDestroy(IsChart chart) Called after the chart as been destroyed.
void	onEndDrawing(IsChart chart) Called after every drawing cycle, coming from initialization, updating or rendering of chart.
void	setSelection(IsChart chart, Date from, Date to) Selects an area, invoked programmatically. Values on axis are retrieved as date (CartesianTimeAxis or CartesianTimeSeriesAxis).
void	setSelection(IsChart chart, double from, double to) Selects an area, invoked programmatically. Values on axis are retrieved as number (CartesianLinearAxis or CartesianLogarithmicAxis).
void	setSelection(IsChart chart, String from, String to) Selects an area, invoked programmatically. Values on axis are retrieved as string (CartesianCategoryAxis).

Methods inherited from class org.pepstock.charba.client.plugins.AbstractPlugin

getId, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.pepstock.charba.client.Plugin

onAfterBuildTicks, onAfterDataLimits, onAfterDatasetDraw, onAfterDatasetsDraw, onAfterDatasetsUpdate, onAfterDatasetUpdate, onAfterDraw, onAfterEvent, onAfterInit, onAfterLayout, onAfterRender, onAfterTooltipDraw, onAfterUpdate, onBeforeBuildTicks, onBeforeDataLimits, onBeforeDatasetDraw, onBeforeDatasetsDraw, onBeforeDatasetsUpdate, onBeforeDatasetUpdate, onBeforeDraw, onBeforeElementsUpdate, onBeforeInit, onBeforeLayout, onBeforeRender, onBeforeTooltipDraw, onBeforeUpdate, onInstall, onReset, onResize, onStart, onStop, onUninstall

Field Detail

ID

public static final String ID

Plugin ID "charbadatasetsitemsselector".

See Also:

Constant Field Values

FACTORY

public static final DatasetsItemsSelectorOptionsFactory FACTORY

The factory to read options for plugin

Method Detail

get

public static DatasetsItemsSelector get()

Returns the singleton instance of plugin.

Returns:

the singleton instance of plugin

getPadding

public double getPadding(IsChart chart)

Returns the padding height used by selection cleaner element if enabled.
This is very helpful when you have added padding for your purposes and you need to know the amount of space that the element allocated.

Parameters:

chart - chart instance

Returns:

the padding height used by selection cleaner element or SelectionCleaner.DEFAULT_VALUE if disabled

cleanSelection

public void cleanSelection(IsChart chart)

Clears the selection on the chart. With this method, it don't fire any clear event if not selected in the plugin options.

Parameters:

chart - chart instance to clear the selection

cleanSelection

public void cleanSelection(IsChart chart,
                           boolean fireEvent)

Clears the selection on the chart and set if an event should fire on clear action.

Parameters:

chart - chart instance to clear the selection

fireEvent - if true an event is fired otherwise not.

setSelection

public void setSelection(IsChart chart,
                         String from,
                         String to)

Selects an area, invoked programmatically.
Values on axis are retrieved as string (CartesianCategoryAxis).

Parameters:

chart - chart instance to use for selection

from - starting axis value

to - ending axis value

setSelection

public void setSelection(IsChart chart,
                         double from,
                         double to)

Selects an area, invoked programmatically.
Values on axis are retrieved as number (CartesianLinearAxis or CartesianLogarithmicAxis).

Parameters:

chart - chart instance to use for selection

from - starting axis value

to - ending axis value

setSelection

public void setSelection(IsChart chart,
                         Date from,
                         Date to)

Selects an area, invoked programmatically.
Values on axis are retrieved as date (CartesianTimeAxis or CartesianTimeSeriesAxis).

Parameters:

chart - chart instance to use for selection

from - starting axis value

to - ending axis value

onConfigure

public void onConfigure(IsChart chart)

Description copied from interface: Plugin

Called before initializing configuration of 'chart'.

Parameters:

chart - the chart instance.

onBeginDrawing

public void onBeginDrawing(IsChart chart,
                           boolean overridePreviousUpdate)

Description copied from interface: Plugin

Called before every drawing cycle, coming from initialization, updating or rendering of chart.

Parameters:

chart - the chart instance

overridePreviousUpdate - if true the drawing was already running.

onEndDrawing

public void onEndDrawing(IsChart chart)

Description copied from interface: Plugin

Called after every drawing cycle, coming from initialization, updating or rendering of chart.

Parameters:

chart - the chart instance

onDestroy

public void onDestroy(IsChart chart)

Description copied from interface: Plugin

Called after the chart as been destroyed.

Parameters:

chart - the chart instance.

onBeforeEvent

public boolean onBeforeEvent(IsChart chart,
                             PluginEventArgument argument)

Description copied from interface: Plugin

Called before processing the specified 'event'.
If any plugin returns false, the event will be discarded.

Parameters:

chart - the chart instance.

argument - instance which contains event context

Returns:

false to discard the event.