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Wt
3.3.8
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Abstract base class for MVC-based charts. More...
#include <Wt/Chart/WAbstractChart>
Public Member Functions | |
| virtual | ~WAbstractChart () |
| Destructor. | |
| void | setModel (WAbstractItemModel *model) |
| Sets the model. More... | |
| void | setModel (WAbstractChartModel *model) |
| Sets the model. More... | |
| WAbstractChartModel * | model () const |
| Returns the model. More... | |
| WAbstractItemModel * | itemModel () const |
| Returns the model. More... | |
| void | setBackground (const WBrush &background) |
| Sets a background for the chart. More... | |
| const WBrush & | background () const |
| Returns the background of the chart. More... | |
| void | setPalette (WChartPalette *palette) |
| Set a palette for the chart. More... | |
| WChartPalette * | palette () const |
| Returns the palette for the chart. More... | |
| void | setPlotAreaPadding (int padding, WFlags< Side > sides=All) |
| Set an internal margin for the main plot area. More... | |
| int | plotAreaPadding (Side side) const |
| Returns the internal margin for the main plot area. More... | |
| void | setAutoLayoutEnabled (bool enabled=true) |
| Configures the chart layout to be automatic. More... | |
| bool | isAutoLayoutEnabled () const |
| Returns whether chart layout is computed automatically. More... | |
| void | setTitle (const WString &title) |
| Set a chart title. More... | |
| const WString & | title () const |
| Return the chart title. More... | |
| void | setTitleFont (const WFont &titleFont) |
| Set the font for the chart title. More... | |
| const WFont & | titleFont () const |
| Returns the font for the chart title. More... | |
| virtual void | paint (WPainter &painter, const WRectF &rectangle=WRectF()) const =0 |
| Paint the chart in a rectangle of the given painter. More... | |
 Public Member Functions inherited from Wt::WPaintedWidget | |
| WPaintedWidget (WContainerWidget *parent=0) | |
| Create a new painted widget. | |
| ~WPaintedWidget () | |
| Destructor. | |
| void | setPreferredMethod (Method method) |
| Sets the preferred rendering method. More... | |
| Method | preferredMethod () const |
| Returns the preferred rendering method. More... | |
| void | update (WFlags< PaintFlag > flags=0) |
| Lets the widget repaint itself. More... | |
| virtual void | resize (const WLength &width, const WLength &height) |
| Resizes the widget. More... | |
| void | addArea (WAbstractArea *area) |
| Adds an interactive area. More... | |
| void | insertArea (int index, WAbstractArea *area) |
| Inserts an interactive area. More... | |
| void | removeArea (WAbstractArea *area) |
| Removes an interactive area. More... | |
| WAbstractArea * | area (int index) const |
| Returns the interactive area at the given index. More... | |
| const std::vector< WAbstractArea * > | areas () const |
| Returns the interactive areas set for this widget. More... | |
| JSlot & | repaintSlot () |
| A JavaScript slot that repaints the widget when triggered. More... | |
| Public Member Functions inherited from Wt::WInteractWidget | |
| WInteractWidget (WContainerWidget *parent=0) | |
| Create an InteractWidget with optional parent. | |
| EventSignal< WKeyEvent > & | keyWentDown () |
| Event signal emitted when a keyboard key is pushed down. More... | |
| EventSignal< WKeyEvent > & | keyPressed () |
| Event signal emitted when a "character" was entered. More... | |
| EventSignal< WKeyEvent > & | keyWentUp () |
| Event signal emitted when a keyboard key is released. More... | |
| EventSignal & | enterPressed () |
| Event signal emitted when enter was pressed. More... | |
| EventSignal & | escapePressed () |
| Event signal emitted when escape was pressed. More... | |
| EventSignal< WMouseEvent > & | clicked () |
| Event signal emitted when a mouse key was clicked on this widget. More... | |
| EventSignal< WMouseEvent > & | doubleClicked () |
| Event signal emitted when a mouse key was double clicked on this widget. More... | |
| EventSignal< WMouseEvent > & | mouseWentDown () |
| Event signal emitted when a mouse key was pushed down on this widget. More... | |
| EventSignal< WMouseEvent > & | mouseWentUp () |
| Event signal emitted when a mouse key was released on this widget. More... | |
| EventSignal< WMouseEvent > & | mouseWentOut () |
| Event signal emitted when the mouse went out of this widget. More... | |
| EventSignal< WMouseEvent > & | mouseWentOver () |
| Event signal emitted when the mouse entered this widget. More... | |
| EventSignal< WMouseEvent > & | mouseMoved () |
| Event signal emitted when the mouse moved over this widget. More... | |
| EventSignal< WMouseEvent > & | mouseDragged () |
| Event signal emitted when the mouse is dragged over this widget. More... | |
| EventSignal< WMouseEvent > & | mouseWheel () |
| Event signal emitted when the mouse scroll wheel was used. More... | |
| EventSignal< WTouchEvent > & | touchStarted () |
| Event signal emitted when a finger is placed on the screen. More... | |
| EventSignal< WTouchEvent > & | touchEnded () |
| Event signal emitted when a finger is removed from the screen. More... | |
| EventSignal< WTouchEvent > & | touchMoved () |
| Event signal emitted when a finger, which is already placed on the screen, is moved across the screen. More... | |
| EventSignal< WGestureEvent > & | gestureStarted () |
| Event signal emitted when a gesture is started. More... | |
| EventSignal< WGestureEvent > & | gestureChanged () |
| Event signal emitted when a gesture is changed. More... | |
| EventSignal< WGestureEvent > & | gestureEnded () |
| Event signal emitted when a gesture is ended. More... | |
| void | setDraggable (const std::string &mimeType, WWidget *dragWidget=0, bool isDragWidgetOnly=false, WObject *sourceWidget=0) |
| Configure dragging for drag and drop. More... | |
| void | unsetDraggable () |
| Disable drag & drop for this widget. More... | |
| void | setMouseOverDelay (int delay) |
| Sets a delay for the mouse over event. More... | |
| int | mouseOverDelay () const |
| Returns the mouse over signal delay. More... | |
| virtual void | setPopup (bool popup) |
| Lets the widget overlay over other sibling widgets. More... | |
| virtual void | load () |
| Loads content just before the widget is used. More... | |
| virtual bool | isEnabled () const |
| Returns whether the widget is enabled. More... | |
| Public Member Functions inherited from Wt::WWebWidget | |
| WWebWidget (WContainerWidget *parent=0) | |
| Construct a WebWidget with a given parent. More... | |
| virtual void | setPositionScheme (PositionScheme scheme) |
| Sets the CSS position scheme. More... | |
| virtual PositionScheme | positionScheme () const |
| Returns the CSS position scheme. More... | |
| virtual void | setOffsets (const WLength &offset, WFlags< Side > sides=All) |
| Sets CSS offsets for a non-statically positioned widget. More... | |
| virtual WLength | offset (Side s) const |
| Returns a CSS offset. More... | |
| virtual WLength | width () const |
| Returns the width. More... | |
| virtual WLength | height () const |
| Returns the height. More... | |
| virtual void | setMinimumSize (const WLength &width, const WLength &height) |
| Sets a minimum size. More... | |
| virtual WLength | minimumWidth () const |
| Returns the minimum width. More... | |
| virtual WLength | minimumHeight () const |
| Returns the minimum height. More... | |
| virtual void | setMaximumSize (const WLength &width, const WLength &height) |
| Sets a maximum size. More... | |
| virtual WLength | maximumWidth () const |
| Returns the maximum width. More... | |
| virtual WLength | maximumHeight () const |
| Returns the maximum height. More... | |
| virtual void | setLineHeight (const WLength &height) |
| Sets the CSS line height for contained text. | |
| virtual WLength | lineHeight () const |
| Returns the CSS line height for contained text. More... | |
| virtual void | setFloatSide (Side s) |
| Specifies a CSS float side. More... | |
| virtual Side | floatSide () const |
| Returns the CSS float side. More... | |
| virtual void | setClearSides (WFlags< Side > sides) |
| Sets the sides that should be cleared of floats. More... | |
| virtual WFlags< Side > | clearSides () const |
| Returns the sides that should remain empty. More... | |
| virtual void | setMargin (const WLength &margin, WFlags< Side > sides=All) |
| Sets CSS margins around the widget. More... | |
| virtual WLength | margin (Side side) const |
| Returns a CSS margin set. More... | |
| virtual void | setHiddenKeepsGeometry (bool enabled) |
| Sets whether the widget keeps its geometry when hidden. More... | |
| virtual bool | hiddenKeepsGeometry () const |
| Returns whether the widget keeps its geometry when hidden. More... | |
| virtual void | setHidden (bool hidden, const WAnimation &animation=WAnimation()) |
| Hides or shows the widget. More... | |
| virtual bool | isHidden () const |
| Returns whether the widget is set hidden. More... | |
| virtual bool | isVisible () const |
| Returns whether the widget is visible. More... | |
| virtual void | setDisabled (bool disabled) |
| Sets whether the widget is disabled. More... | |
| virtual bool | isDisabled () const |
| Returns whether the widget is set disabled. More... | |
| virtual bool | isPopup () const |
| Returns whether the widget is overlayed. More... | |
| virtual void | setInline (bool isInline) |
| Sets whether the widget is displayed inline or as a block. More... | |
| virtual bool | isInline () const |
| Returns whether the widget is displayed inline or as block. More... | |
| virtual void | setDecorationStyle (const WCssDecorationStyle &style) |
| Sets a CSS decoration style. More... | |
| virtual WCssDecorationStyle & | decorationStyle () |
| Returns the decoration style of this widget. More... | |
| virtual void | setStyleClass (const WString &styleClass) |
| Sets (one or more) CSS style classes. More... | |
| virtual WString | styleClass () const |
| Returns the CSS style class. More... | |
| virtual void | addStyleClass (const WString &styleClass, bool force=false) |
| Adds a CSS style class. More... | |
| virtual void | removeStyleClass (const WString &styleClass, bool force=false) |
| Removes a CSS style class. More... | |
| virtual bool | hasStyleClass (const WString &styleClass) const |
| Returns whether the widget has a style class. | |
| virtual void | setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength()) |
| Sets the vertical alignment. More... | |
| virtual AlignmentFlag | verticalAlignment () const |
| Returns the vertical alignment. More... | |
| virtual WLength | verticalAlignmentLength () const |
| Returns the fixed vertical alignment that was set. More... | |
| virtual void | setToolTip (const WString &text, TextFormat textFormat=PlainText) |
| Sets a tooltip. More... | |
| virtual void | setDeferredToolTip (bool enable, TextFormat textFormat=PlainText) |
| Enable deferred tooltip. More... | |
| virtual WString | toolTip () const |
| Returns the tooltip. | |
| virtual void | refresh () |
| Refresh the widget. More... | |
| virtual void | setAttributeValue (const std::string &name, const WString &value) |
| Sets an attribute value. More... | |
| virtual WString | attributeValue (const std::string &name) const |
| Returns an attribute value. More... | |
| virtual void | setJavaScriptMember (const std::string &name, const std::string &value) |
| Sets a JavaScript member. More... | |
| virtual std::string | javaScriptMember (const std::string &name) const |
| Returns the value of a JavaScript member. More... | |
| virtual void | callJavaScriptMember (const std::string &name, const std::string &args) |
| Calls a JavaScript member. More... | |
| virtual bool | loaded () const |
| Returns whether this widget has been loaded. More... | |
| virtual void | setId (const std::string &id) |
| Sets the CSS Id. More... | |
| virtual WWidget * | find (const std::string &name) |
| Finds a descendent widget by name. More... | |
| virtual WWidget * | findById (const std::string &id) |
| Finds a descendent widget by id. | |
| virtual void | setSelectable (bool selectable) |
| Sets as selectable. More... | |
| virtual void | doJavaScript (const std::string &javascript) |
| Executes the given JavaScript statements when the widget is rendered or updated. More... | |
| virtual const std::string | id () const |
| Returns the (unique) identifier for this object. More... | |
| void | setLoadLaterWhenInvisible (bool) |
| Change the way the widget is loaded when invisible. More... | |
| std::string | htmlTagName () const |
| returns the current html tag name More... | |
| void | setHtmlTagName (const std::string &tag) |
| set the custom HTML tag name More... | |
| const std::vector< WWidget * > & | children () const |
| Returns contained widgets. More... | |
| Signal & | childrenChanged () |
| Signal emitted when children have been added or removed. More... | |
| virtual void | setCanReceiveFocus (bool enabled) |
| Sets whether the widget can receive focus. More... | |
| virtual bool | canReceiveFocus () const |
| Returns whether the widget can receive focus. More... | |
| virtual bool | setFirstFocus () |
| Set focus on the widget's first descendant. More... | |
| virtual void | setFocus (bool focus) |
| Sets focus. More... | |
| virtual bool | hasFocus () const |
| Returns whether the widget currently has the focus. | |
| virtual void | setTabIndex (int index) |
| Sets the tab index. More... | |
| virtual int | tabIndex () const |
| Returns the tab index. More... | |
| EventSignal & | blurred () |
| Signal emitted when the widget lost focus. More... | |
| EventSignal & | focussed () |
| Signal emitted when the widget recieved focus. More... | |
| virtual bool | scrollVisibilityEnabled () const WT_CXX11ONLY(finaloverride) |
| Returns whether scroll visibility detection is enabled for this widget. More... | |
| virtual void | setScrollVisibilityEnabled (bool enabled) WT_CXX11ONLY(finaloverride) |
| Sets whether scroll visibility detection is enabled for this widget. More... | |
| virtual int | scrollVisibilityMargin () const WT_CXX11ONLY(finaloverride) |
| Returns the margin around the viewport within which the widget is considered visible. More... | |
| virtual void | setScrollVisibilityMargin (int margin) WT_CXX11ONLY(finaloverride) |
| Sets the margin around the viewport within which the widget is considered visible. More... | |
| virtual Signal< bool > & | scrollVisibilityChanged () WT_CXX11ONLY(finaloverride) |
| Signal triggered when the scroll visibility of this widget changes. More... | |
| virtual bool | isScrollVisible () const WT_CXX11ONLY(finaloverride) |
| Returns whether this widget is currently considered scroll visible. More... | |
| virtual void | setThemeStyleEnabled (bool enabled) |
| Sets whether theme styling for a widget is enabled or disabled. More... | |
| virtual bool | isThemeStyleEnabled () const |
| Returns whether this widget is currently styled by the chosen theme. More... | |
| Public Member Functions inherited from Wt::WWidget | |
| virtual | ~WWidget () |
| Destructor. More... | |
| WWidget * | parent () const |
| Returns the parent widget. More... | |
| virtual void | removeChild (WObject *child) |
| Removes a child object. More... | |
| void | setWidth (const WLength &width) |
| Sets the width. More... | |
| void | setHeight (const WLength &height) |
| Sets the height. More... | |
| virtual void | positionAt (const WWidget *widget, Orientation orientation=Vertical) |
| Positions a widget next to another widget. More... | |
| virtual void | toggleStyleClass (const WString &styleClass, bool add, bool force=false) |
| Toggles a CSS style class. | |
| std::string | jsRef () const |
| Returns a JavaScript expression to the corresponding DOM node. More... | |
| void | setFocus () |
| Sets focus. More... | |
| virtual void | acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString()) |
| Sets a mime type to be accepted for dropping. More... | |
| virtual void | stopAcceptDrops (const std::string &mimeType) |
| Indicates that a mime type is no longer accepted for dropping. More... | |
| virtual void | setObjectName (const std::string &name) |
| Sets an object name. More... | |
| virtual void | htmlText (std::ostream &out) |
| Streams the (X)HTML representation. More... | |
| bool | isRendered () const |
| Returns whether the widget is rendered. More... | |
| void | hide () |
| Hides the widget. More... | |
| void | animateHide (const WAnimation &animation) |
| Hides the widget using an animation. More... | |
| void | show () |
| Shows the widget. More... | |
| void | animateShow (const WAnimation &animation) |
| Shows the widget using an animation. More... | |
| void | enable () |
| Enables the widget. More... | |
| void | disable () |
| Disable thes widget. More... | |
| bool | layoutSizeAware () const |
| Returns whether the widget is layout size aware. More... | |
| Public Member Functions inherited from Wt::WObject | |
| WObject (WObject *parent=0) | |
| Create a WObject with a given parent object. More... | |
| virtual | ~WObject () |
| Destructor. More... | |
| virtual std::string | objectName () const |
| Returns the object name. More... | |
| void | resetLearnedSlots () |
| Resets learned stateless slot implementations. More... | |
| template<class T > | |
| void | resetLearnedSlot (void(T::*method)()) |
| Resets a learned stateless slot implementation. More... | |
| template<class T > | |
| WStatelessSlot * | implementStateless (void(T::*method)()) |
| Declares a slot to be stateless and learn client-side behaviour on first invocation. More... | |
| template<class T > | |
| WStatelessSlot * | implementStateless (void(T::*method)(), void(T::*undoMethod)()) |
| Declares a slot to be stateless and learn client-side behaviour in advance. More... | |
| void | isNotStateless () |
| Marks the current function as not stateless. More... | |
| template<class T > | |
| WStatelessSlot * | implementJavaScript (void(T::*method)(), const std::string &jsCode) |
| Provides a JavaScript implementation for a method. More... | |
| void | addChild (WObject *child) |
| Adds a child object. More... | |
| const std::vector< WObject * > & | children () const |
| Returns the children. | |
| WObject * | parent () const |
| Returns the parent object. | |
Additional Inherited Members | |
| Public Types inherited from Wt::WPaintedWidget | |
| Public Types inherited from Wt::WObject | |
| typedef void(WObject::* | Method) () |
| Typedef for a WObject method without arguments. | |
| Static Public Member Functions inherited from Wt::WWebWidget | |
| static WString | escapeText (const WString &text, bool newlinesToo=false) |
| Escape HTML control characters in the text, to display literally (deprecated). More... | |
| static std::string & | escapeText (std::string &text, bool newlinestoo=false) |
| Escape HTML control characters in the text, to display literally (deprecated). More... | |
| static bool | removeScript (WString &text) |
| Remove tags/attributes from text that are not passive (deprecated). More... | |
| static std::string | jsStringLiteral (const std::string &v, char delimiter= '\'') |
| Turn a UTF8 encoded string into a JavaScript string literal. More... | |
| Static Public Member Functions inherited from Wt::WWidget | |
| static WString | tr (const char *key) |
| Short hand for WString::tr() More... | |
| Protected Member Functions inherited from Wt::WPaintedWidget | |
| WJavaScriptHandle< WTransform > | createJSTransform () |
| Create a WTransform that is accessible from JavaScript, associated with this WPaintedWidget. | |
| WJavaScriptHandle< WBrush > | createJSBrush () |
| Create a WBrush that is accessible from JavaScript, associated with this WPaintedWidget. | |
| WJavaScriptHandle< WPen > | createJSPen () |
| Create a WPen that is accessible from JavaScript, associated with this WPaintedWidget. | |
| WJavaScriptHandle< WPainterPath > | createJSPainterPath () |
| Create a WPainterPath that is accessible from JavaScript, associated with this WPaintedWidget. | |
| WJavaScriptHandle< WRectF > | createJSRect () |
| Create a WRectF that is accessible from JavaScript, associated with this WPaintedWidget. | |
| WJavaScriptHandle< WPointF > | createJSPoint () |
| Create a WPointF that is accessible from JavaScript, associated with this WPaintedWidget. | |
| virtual void | layoutSizeChanged (int width, int height) |
| Virtual method that indicates a size change. More... | |
| virtual Method | getMethod () const |
| Returns the actual method used for rendering. More... | |
| virtual void | paintEvent (WPaintDevice *paintDevice)=0 |
| Paints the widget. More... | |
| virtual WPaintDevice * | createPaintDevice () const |
| Creates a paint device. More... | |
| virtual void | enableAjax () |
| Progresses to an Ajax-enabled widget. More... | |
| virtual void | render (WFlags< RenderFlag > flags) |
| Renders the widget. More... | |
| std::string | objJsRef () const |
| Returns a JavaScript reference to the client side representation of the WPaintedWidget. More... | |
| Protected Member Functions inherited from Wt::WInteractWidget | |
| virtual void | propagateSetEnabled (bool enabled) |
| Propagates that a widget was enabled or disabled through children. More... | |
| Protected Member Functions inherited from Wt::WWebWidget | |
| virtual WStatelessSlot * | getStateless (Method method) |
| On-demand stateless slot implementation. More... | |
| Protected Member Functions inherited from Wt::WWidget | |
| void | setLayoutSizeAware (bool sizeAware) |
| Sets the widget to be aware of its size set by a layout manager. More... | |
| WWidget (WContainerWidget *parent=0) | |
| Creates a widget. More... | |
| virtual void | dropEvent (WDropEvent dropEvent) |
| Handles a drop event. More... | |
| virtual int | boxPadding (Orientation orientation) const |
| Returns the widget's built-in padding. More... | |
| virtual int | boxBorder (Orientation orientation) const |
| Returns the widget's built-in border width. More... | |
| void | scheduleRender (WFlags< RepaintFlag > flags=0) |
| Schedules rerendering of the widget. More... | |
| Static Protected Member Functions inherited from Wt::WObject | |
| static WObject * | sender () |
| Returns the sender of the current slot call. More... | |
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().
Styling through CSS is not applicable.
| const WBrush& Wt::Chart::WAbstractChart::background | ( | ) | const |
Returns the background of the chart.
| bool Wt::Chart::WAbstractChart::isAutoLayoutEnabled | ( | ) | const |
Returns whether chart layout is computed automatically.
| WAbstractItemModel * Wt::Chart::WAbstractChart::itemModel | ( | ) | const |
Returns the model.
If a model was set using setModel(WAbstractItemModel *), then this model will be returned by this call.
| WAbstractChartModel* Wt::Chart::WAbstractChart::model | ( | ) | const |
Returns the model.
|
pure virtual |
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 window is used.
Implemented in Wt::Chart::WCartesianChart, and Wt::Chart::WPieChart.
| WChartPalette* Wt::Chart::WAbstractChart::palette | ( | ) | const |
Returns the palette for the chart.
| int Wt::Chart::WAbstractChart::plotAreaPadding | ( | Side | side | ) | const |
Returns the internal margin for the main plot area.
This is either the paddings set through setPlotAreaPadding() or computed using setAutoLayoutEnabled()
| void Wt::Chart::WAbstractChart::setAutoLayoutEnabled | ( | bool | enabled = true | ) |
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().
| void Wt::Chart::WAbstractChart::setBackground | ( | const WBrush & | background | ) |
Sets a background for the chart.
Set the background color for the main plot area.
The default is a completely transparent background.
| void Wt::Chart::WAbstractChart::setModel | ( | WAbstractItemModel * | model | ) |
Sets the model.
The model is used by the chart to get its data. Ownership of the model is not transferred, and if a previous model was set it is not deleted.
The default model is a 0 model.
This creates an internal proxy model that presents the WAbstractItemModel as a WAbstractChartModel. Use setModel(WAbstractChartModel *) directly for highest performance (avoiding the overhead of boost::any for numeric data).
| void Wt::Chart::WAbstractChart::setModel | ( | WAbstractChartModel * | model | ) |
Sets the model.
The model is used by the chart to get its data. Ownership of the model is not transferred, and if a previous model was set it is not deleted.
The default model is a 0 model.
| void Wt::Chart::WAbstractChart::setPalette | ( | WChartPalette * | palette | ) |
Set a palette for the chart.
A palette is used to provide the style information to render the chart series. Ownership of the palette is transferred to the chart.
The default palette is dependent on the chart type.
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().
| void Wt::Chart::WAbstractChart::setTitle | ( | const WString & | title | ) |
Set a chart title.
The title is displayed on top of the chart, using the titleFont().
The default title is an empty title ("").
| void Wt::Chart::WAbstractChart::setTitleFont | ( | const 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.
| const WFont& Wt::Chart::WAbstractChart::titleFont | ( | ) | const |
Returns the font for the chart title.
1.8.11
