Package eu.webtoolkit.jwt.chart

Class WAbstractChart

java.lang.Object

eu.webtoolkit.jwt.WObject

eu.webtoolkit.jwt.WWidget

eu.webtoolkit.jwt.WWebWidget

eu.webtoolkit.jwt.WInteractWidget

eu.webtoolkit.jwt.WPaintedWidget

eu.webtoolkit.jwt.chart.WAbstractChart

Direct Known Subclasses:

WCartesianChart, WPieChart

public abstract class WAbstractChart
extends WPaintedWidget

Abstract base class for MVC-based charts.

This is an abstract class and should not be used directly.

As an abstract base for MVC-based charts, this class manages the model setModel() and provides virtual methods that listen to model changes. In addition, it gives access to generic chart properties such as the title setTitle() and title font setTitleFont(), the chart palette setPalette(), plot area padding setPlotAreaPadding(), and the background fill color setBackground().

CSS

Styling through CSS is not applicable.

See Also:

• WCartesianChart
• WPieChart

Nested Class Summary

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WObject

WObject.FormData

Field Summary

Fields inherited from class eu.webtoolkit.jwt.WInteractWidget

dragTouchEndSlot_, dragTouchSlot_, noDefault

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	WAbstractChart()
protected	WAbstractChart(WContainerWidget parentContainer)

Method Summary

Modifier and Type	Method	Description
WBrush	getBackground()	Returns the background of the chart.
WAbstractItemModel	getItemModel()	Returns the model.
WAbstractChartModel	getModel()	Returns the model.
WChartPalette	getPalette()	Returns the palette for the chart.
int	getPlotAreaPadding(Side side)	Returns the internal margin for the main plot area.
WString	getTitle()	Return the chart title.
WFont	getTitleFont()	Returns the font for the chart title.
boolean	isAutoLayoutEnabled()	Returns whether chart layout is computed automatically.
protected void	modelChanged()
protected void	modelReset()
final void	paint(WPainter painter)	Paint the chart in a rectangle of the given painter.
abstract void	paint(WPainter painter, WRectF rectangle)	Paint the chart in a rectangle of the given painter.
void	remove()	Destructor.
final void	setAutoLayoutEnabled()	Configures the chart layout to be automatic.
void	setAutoLayoutEnabled(boolean enabled)	Configures the chart layout to be automatic.
void	setBackground(WBrush background)	Sets a background for the chart.
void	setModel(WAbstractChartModel model)	Sets the model.
void	setModel(WAbstractItemModel model)	Sets the model.
void	setPalette(WChartPalette palette)	Set a palette for the chart.
final void	setPlotAreaPadding(int padding)	Set an internal margin for the main plot area.
final void	setPlotAreaPadding(int padding, Side side, Side... sides)	Set an internal margin for the main plot area.
void	setPlotAreaPadding(int padding, EnumSet<Side> sides)	Set an internal margin for the main plot area.
void	setTitle(CharSequence title)	Set a chart title.
void	setTitleFont(WFont titleFont)	Set the font for the chart title.

Methods inherited from class eu.webtoolkit.jwt.WPaintedWidget

addArea, createDomElement, createJSBrush, createJSPainterPath, createJSPen, createJSPoint, createJSRect, createJSTransform, enableAjax, getArea, getAreas, getCreatePaintDevice, getDomChanges, getMethod, getObjJsRef, getPreferredMethod, getRepaintSlot, insertArea, layoutSizeChanged, paintEvent, refresh, removeArea, render, resize, setFormData, setPreferredMethod, update, update, update

Methods inherited from class eu.webtoolkit.jwt.WInteractWidget

clicked, doubleClicked, enterPressed, escapePressed, gestureChanged, gestureEnded, gestureStarted, getMouseOverDelay, isEnabled, keyPressed, keyWentDown, keyWentUp, load, mouseDragged, mouseMoved, mouseWentDown, mouseWentOut, mouseWentOver, mouseWentUp, mouseWheel, propagateSetEnabled, setDraggable, setDraggable, setDraggable, setDraggable, setMouseOverDelay, setPopup, touchEnded, touchMoved, touchStarted, unsetDraggable

Methods inherited from class eu.webtoolkit.jwt.WWebWidget

addStyleClass, beingDeleted, blurred, callJavaScriptMember, childrenChanged, doJavaScript, escapeText, escapeText, escapeText, escapeText, find, findById, focussed, getAttributeValue, getBaseZIndex, getChildren, getClearSides, getDecorationStyle, getFloatSide, getHeight, getHtmlTagName, getId, getJavaScriptMember, getLineHeight, getMargin, getMaximumHeight, getMaximumWidth, getMinimumHeight, getMinimumWidth, getOffset, getPositionScheme, getScrollVisibilityMargin, getStyleClass, getTabIndex, getToolTip, getVerticalAlignment, getVerticalAlignmentLength, getWidth, hasFocus, hasStyleClass, isCanReceiveFocus, isDisabled, isHidden, isHiddenKeepsGeometry, isInline, isLoaded, isPopup, isRendered, isScrollVisibilityEnabled, isScrollVisible, isSetFirstFocus, isThemeStyleEnabled, isVisible, iterateChildren, jsStringLiteral, jsStringLiteral, manageWidget, parentResized, parentResized, propagateSetVisible, removeScript, removeStyleClass, scrollVisibilityChanged, setAttributeValue, setBaseZIndex, setCanReceiveFocus, setClearSides, setDecorationStyle, setDeferredToolTip, setDisabled, setFlexBox, setFloatSide, setFocus, setHidden, setHiddenKeepsGeometry, setHtmlTagName, setId, setInline, setJavaScriptMember, setLineHeight, setLoadLaterWhenInvisible, setMargin, setMaximumSize, setMinimumSize, setObjectName, setOffsets, setParentWidget, setPositionScheme, setScrollVisibilityEnabled, setScrollVisibilityMargin, setSelectable, setStyleClass, setTabIndex, setThemeStyleEnabled, setToolTip, setVerticalAlignment, unescapeText, updateSignalConnection, voidEventSignal, widgetAdded, widgetRemoved

Methods inherited from class eu.webtoolkit.jwt.WWidget

acceptDrops, acceptDrops, addCssRule, addCssRule, addJSignal, addStyleClass, animateHide, animateShow, boxBorder, boxPadding, createJavaScript, disable, dropEvent, enable, getDropTouch, getJsRef, getParent, hide, htmlText, isExposed, isGlobalWidget, isLayoutSizeAware, needsRerender, positionAt, positionAt, positionAt, positionAt, removeFromParent, removeStyleClass, removeWidget, render, resize, scheduleRender, scheduleRender, scheduleRender, setClearSides, setDeferredToolTip, setFocus, setHeight, setHidden, setLayoutSizeAware, setMargin, setMargin, setMargin, setMargin, setMargin, setOffsets, setOffsets, setOffsets, setOffsets, setOffsets, setToolTip, setVerticalAlignment, setWidth, show, stopAcceptDrops, toggleStyleClass, toggleStyleClass, tr

Methods inherited from class eu.webtoolkit.jwt.WObject

getObjectName

Methods inherited from class java.lang.Object

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

Constructor Details

WAbstractChart

protected WAbstractChart(WContainerWidget parentContainer)

WAbstractChart

protected WAbstractChart()

Method Details

remove

public void remove()

Destructor.

Overrides:

remove in class WPaintedWidget

See Also:

• WWidget.removeWidget(WWidget widget)

setModel

public void setModel(WAbstractItemModel model)

Sets the model.

The model is used by the chart to get its data.

The default model is null.

This creates an internal proxy model that presents the WAbstractItemModel as a WAbstractChartModel. Use setModel() directly for highest performance (avoiding the overhead of any for numeric data).

Note: Setting a new model on a WCartesianChart causes the WCartesianChart.XSeriesColumn() and all series to be cleared

See Also:

• getModel()

setModel

public void setModel(WAbstractChartModel model)

Sets the model.

The model is used by the chart to get its data.

The default model is a null.

Note: Setting a new model on a WCartesianChart causes the WCartesianChart.XSeriesColumn() and all series to be cleared

See Also:

• getModel()

getModel

public WAbstractChartModel getModel()

Returns the model.

See Also:

• setModel(WAbstractChartModel model)

getItemModel

public WAbstractItemModel getItemModel()

Returns the model.

If a model was set using setModel(), then this model will be returned by this call.

See Also:

• setModel(WAbstractChartModel model)

setBackground

public void setBackground(WBrush background)

Sets a background for the chart.

Set the background color for the main plot area.

The default is a completely transparent background.

See Also:

• getBackground()

getBackground

public WBrush getBackground()

Returns the background of the chart.

See Also:

• setBackground(WBrush background)

setPalette

public void setPalette(WChartPalette palette)

Set a palette for the chart.

A palette is used to provide the style information to render the chart series.

The default palette is dependent on the chart type.

See Also:

• getPalette()

getPalette

public WChartPalette getPalette()

Returns the palette for the chart.

setPlotAreaPadding

public void setPlotAreaPadding(int padding,
 EnumSet<Side> sides)

Set an internal margin for the main plot area.

This configures the area (in pixels) around the plot area that is available for axes, labels, and titles.

The default is dependent on the chart type.

Alternatively, you can configure the chart layout to be computed automatically using setAutoLayoutEnabled().

See Also:

• setAutoLayoutEnabled(boolean enabled)

setPlotAreaPadding

public final void setPlotAreaPadding(int padding,
 Side side,
 Side... sides)

Set an internal margin for the main plot area.

Calls setPlotAreaPadding(padding, EnumSet.of(side, sides))

setPlotAreaPadding

public final void setPlotAreaPadding(int padding)

Set an internal margin for the main plot area.

Calls setPlotAreaPadding(padding, Side.AllSides)

getPlotAreaPadding

public int getPlotAreaPadding(Side side)

Returns the internal margin for the main plot area.

This is either the paddings set through setPlotAreaPadding() or computed using setAutoLayoutEnabled()

See Also:

• setPlotAreaPadding(int padding, EnumSet sides)

setAutoLayoutEnabled

public void setAutoLayoutEnabled(boolean enabled)

Configures the chart layout to be automatic.

This configures the plot area so that the space around it is suited for the text that is rendered (axis labels and text, the title, and legend).

The default value is false, and the chart layout is set manually using values set in setPlotAreaPadding().

setAutoLayoutEnabled

public final void setAutoLayoutEnabled()

Configures the chart layout to be automatic.

Calls setAutoLayoutEnabled(true)

isAutoLayoutEnabled

public boolean isAutoLayoutEnabled()

Returns whether chart layout is computed automatically.

See Also:

• setAutoLayoutEnabled(boolean enabled)

setTitle

public void setTitle(CharSequence title)

Set a chart title.

The title is displayed on top of the chart, using the getTitleFont().

The default title is an empty title ("").

See Also:

• getTitle()

getTitle

public WString getTitle()

Return the chart title.

See Also:

• getTitle()

setTitleFont

public void setTitleFont(WFont titleFont)

Set the font for the chart title.

Changes the font for the chart title.

The default title font is a 15 point Sans Serif font.

See Also:

• getTitleFont()
• setTitle(CharSequence title)

getTitleFont

public WFont getTitleFont()

Returns the font for the chart title.

See Also:

• setTitleFont(WFont titleFont)

paint

public abstract void paint(WPainter painter,
 WRectF rectangle)

Paint the chart in a rectangle of the given painter.

Paints the chart inside the painter, in the area indicated by rectangle. When rectangle is a null rectangle, the entire painter WPainter.getWindow() is used.

paint

public final void paint(WPainter painter)

Paint the chart in a rectangle of the given painter.

Calls paint(painter, null)

modelChanged

protected void modelChanged()

modelReset

protected void modelReset()