Wt examples  3.7.1
Public Member Functions | List of all members
ScatterPlotExample Class Reference
Charts example

A Widget that demonstrates a scatter plot. More...

#include <ChartsExample.h>

Inheritance diagram for ScatterPlotExample:
Inheritance graph
[legend]

Public Member Functions

 ScatterPlotExample (Wt::WContainerWidget *parent)
 Creates the scatter plot example. More...
 
- Public Member Functions inherited from Wt::WContainerWidget
 WContainerWidget ()
 
 ~WContainerWidget ()
 
void setLayout (std::unique_ptr< WLayout > layout)
 
Layout * setLayout (std::unique_ptr< Layout > layout)
 
WLayout * layout () const
 
virtual void addWidget (std::unique_ptr< WWidget > widget)
 
Widget * addWidget (std::unique_ptr< Widget > widget)
 
Widget * addNew (Args &&...args)
 
virtual void insertBefore (std::unique_ptr< WWidget > widget, WWidget *before)
 
Widget * insertBefore (std::unique_ptr< Widget > widget, WWidget *before)
 
virtual void insertWidget (int index, std::unique_ptr< WWidget > widget)
 
Widget * insertWidget (int index, std::unique_ptr< Widget > widget)
 
Widget * insertNew (int index, Args &&...args)
 
virtual std::unique_ptr< WWidget > removeWidget (WWidget *widget) override
 
virtual void clear ()
 
virtual int indexOf (WWidget *widget) const
 
virtual WWidget * widget (int index) const
 
virtual int count () const
 
void setContentAlignment (WFlags< AlignmentFlag > contentAlignment)
 
void setPadding (const WLength &padding, WFlags< Side > sides=AllSides)
 
WLength padding (Side side) const
 
WFlags< AlignmentFlag > contentAlignment () const
 
void setOverflow (Overflow overflow, WFlags< Orientation > orientation=(Orientation::Horizontal|Orientation::Vertical))
 
void setList (bool list, bool ordered=false)
 
bool isList () const
 
bool isUnorderedList () const
 
bool isOrderedList () const
 
EventSignal< WScrollEvent > & scrolled ()
 
int scrollTop () const
 
int scrollLeft () const
 
- Public Member Functions inherited from Wt::WInteractWidget
 WInteractWidget ()
 
EventSignal< WKeyEvent > & keyWentDown ()
 
EventSignal< WKeyEvent > & keyPressed ()
 
EventSignal< WKeyEvent > & keyWentUp ()
 
EventSignal & enterPressed ()
 
EventSignal & escapePressed ()
 
EventSignal< WMouseEvent > & clicked ()
 
EventSignal< WMouseEvent > & doubleClicked ()
 
EventSignal< WMouseEvent > & mouseWentDown ()
 
EventSignal< WMouseEvent > & mouseWentUp ()
 
EventSignal< WMouseEvent > & mouseWentOut ()
 
EventSignal< WMouseEvent > & mouseWentOver ()
 
EventSignal< WMouseEvent > & mouseMoved ()
 
EventSignal< WMouseEvent > & mouseDragged ()
 
EventSignal< WMouseEvent > & mouseWheel ()
 
EventSignal< WTouchEvent > & touchStarted ()
 
EventSignal< WTouchEvent > & touchEnded ()
 
EventSignal< WTouchEvent > & touchMoved ()
 
EventSignal< WGestureEvent > & gestureStarted ()
 
EventSignal< WGestureEvent > & gestureChanged ()
 
EventSignal< WGestureEvent > & gestureEnded ()
 
void setDraggable (const std::string &mimeType, WWidget *dragWidget=nullptr, bool isDragWidgetOnly=false, WObject *sourceWidget=nullptr)
 
void unsetDraggable ()
 
void setMouseOverDelay (int delay)
 
int mouseOverDelay () const
 
virtual void setPopup (bool popup) override
 
virtual void load () override
 
virtual bool isEnabled () const override
 
- Public Member Functions inherited from Wt::WWebWidget
 WWebWidget ()
 
virtual std::vector< WWidget *> children () const override
 
Signal & childrenChanged ()
 
virtual void setPositionScheme (PositionScheme scheme) override
 
virtual PositionScheme positionScheme () const override
 
virtual void setOffsets (const WLength &offset, WFlags< Side > sides=AllSides) override
 
virtual WLength offset (Side s) const override
 
virtual void resize (const WLength &width, const WLength &height) override
 
virtual WLength width () const override
 
virtual WLength height () const override
 
virtual void setMinimumSize (const WLength &width, const WLength &height) override
 
virtual WLength minimumWidth () const override
 
virtual WLength minimumHeight () const override
 
virtual void setMaximumSize (const WLength &width, const WLength &height) override
 
virtual WLength maximumWidth () const override
 
virtual WLength maximumHeight () const override
 
virtual void setLineHeight (const WLength &height) override
 
virtual WLength lineHeight () const override
 
virtual void setFloatSide (Side s) override
 
virtual Side floatSide () const override
 
virtual void setClearSides (WFlags< Side > sides) override
 
virtual WFlags< Side > clearSides () const override
 
virtual void setMargin (const WLength &margin, WFlags< Side > sides=AllSides) override
 
virtual WLength margin (Side side) const override
 
virtual void setHiddenKeepsGeometry (bool enabled) override
 
virtual bool hiddenKeepsGeometry () const override
 
virtual void setHidden (bool hidden, const WAnimation &animation=WAnimation()) override
 
virtual bool isHidden () const override
 
virtual bool isVisible () const override
 
virtual void setDisabled (bool disabled) override
 
virtual bool isDisabled () const override
 
virtual bool isPopup () const override
 
virtual void setInline (bool isInline) override
 
virtual bool isInline () const override
 
virtual void setDecorationStyle (const WCssDecorationStyle &style) override
 
virtual WCssDecorationStyle & decorationStyle () override
 
virtual void setStyleClass (const WString &styleClass) override
 
virtual WString styleClass () const override
 
virtual void addStyleClass (const WString &styleClass, bool force=false) override
 
virtual void removeStyleClass (const WString &styleClass, bool force=false) override
 
virtual bool hasStyleClass (const WString &styleClass) const override
 
virtual void setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength()) override
 
virtual AlignmentFlag verticalAlignment () const override
 
virtual WLength verticalAlignmentLength () const override
 
virtual void setToolTip (const WString &text, TextFormat textFormat=TextFormat::Plain) override
 
virtual void setDeferredToolTip (bool enable, TextFormat textFormat=TextFormat::Plain) override
 
virtual WString toolTip () const override
 
virtual void refresh () override
 
virtual void setAttributeValue (const std::string &name, const WString &value) override
 
virtual WString attributeValue (const std::string &name) const override
 
virtual void setJavaScriptMember (const std::string &name, const std::string &value) override
 
virtual std::string javaScriptMember (const std::string &name) const override
 
virtual void callJavaScriptMember (const std::string &name, const std::string &args) override
 
virtual bool loaded () const override
 
virtual void setId (const std::string &id) override
 
virtual WWidget * find (const std::string &name) override
 
virtual WWidget * findById (const std::string &id) override
 
virtual void setSelectable (bool selectable) override
 
virtual void doJavaScript (const std::string &javascript) override
 
virtual const std::string id () const override
 
void setLoadLaterWhenInvisible (bool)
 
std::string htmlTagName () const
 
void setHtmlTagName (const std::string &tag)
 
virtual void setCanReceiveFocus (bool enabled) override
 
virtual bool canReceiveFocus () const override
 
virtual bool setFirstFocus () override
 
virtual void setFocus (bool focus) override
 
virtual bool hasFocus () const override
 
virtual void setTabIndex (int index) override
 
virtual int tabIndex () const override
 
EventSignal & blurred ()
 
EventSignal & focussed ()
 
virtual bool scrollVisibilityEnabled () const final override
 
virtual void setScrollVisibilityEnabled (bool enabled) final override
 
virtual int scrollVisibilityMargin () const final override
 
virtual void setScrollVisibilityMargin (int margin) final override
 
virtual Signal< bool > & scrollVisibilityChanged () final override
 
virtual bool isScrollVisible () const final override
 
virtual void setThemeStyleEnabled (bool enabled) final override
 
virtual bool isThemeStyleEnabled () const final override
 
virtual void setObjectName (const std::string &name) override
 
- Public Member Functions inherited from Wt::WWidget
virtual ~WWidget ()
 
WWidget * parent () const
 
std::unique_ptr< Widget > removeWidget (Widget *widget)
 
std::unique_ptr< WWidget > removeFromParent ()
 
void setWidth (const WLength &width)
 
void setHeight (const WLength &height)
 
virtual void positionAt (const WWidget *widget, Orientation orientation=Orientation::Vertical)
 
virtual void toggleStyleClass (const WString &styleClass, bool add, bool force=false)
 
std::string jsRef () const
 
void setFocus ()
 
virtual void acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())
 
virtual void stopAcceptDrops (const std::string &mimeType)
 
virtual void htmlText (std::ostream &out)
 
bool isRendered () const
 
void hide ()
 
void animateHide (const WAnimation &animation)
 
void show ()
 
void animateShow (const WAnimation &animation)
 
void enable ()
 
void disable ()
 
bool layoutSizeAware () const
 
- Public Member Functions inherited from Wt::WObject
void addChild (std::unique_ptr< WObject > child)
 
Child * addChild (std::unique_ptr< Child > child)
 
std::unique_ptr< WObject > removeChild (WObject *child)
 
std::unique_ptr< Child > removeChild (Child *child)
 
virtual std::string objectName () const
 
void resetLearnedSlots ()
 
void resetLearnedSlot (void(T::*method)())
 
WStatelessSlot * implementStateless (void(T::*method)())
 
WStatelessSlot * implementStateless (void(T::*method)(), void(T::*undoMethod)())
 
void isNotStateless ()
 
WStatelessSlot * implementJavaScript (void(T::*method)(), const std::string &jsCode)
 
- Public Member Functions inherited from Wt::Core::observable
 observable () noexcept
 
virtual ~observable ()
 
auto bindSafe (void(C::*method)(Args...)) noexcept
 
auto bindSafe (void(C::*method)(Args...) const) const noexcept
 
auto bindSafe (const Function &function) noexcept
 

Additional Inherited Members

- Public Types inherited from Wt::WObject
typedef void(WObject::* Method) ()
 
- Static Public Member Functions inherited from Wt::WWebWidget
static std::string jsStringLiteral (const std::string &v, char delimiter='\'')
 
- Static Public Member Functions inherited from Wt::WWidget
static WString tr (const char *key)
 
- Protected Member Functions inherited from Wt::WInteractWidget
virtual void propagateSetEnabled (bool enabled) override
 
- Protected Member Functions inherited from Wt::WWebWidget
virtual void enableAjax () override
 
virtual WStatelessSlot * getStateless (Method method) override
 
virtual void render (WFlags< RenderFlag > flags) override
 
- Protected Member Functions inherited from Wt::WWidget
void setLayoutSizeAware (bool sizeAware)
 
virtual void layoutSizeChanged (int width, int height)
 
 WWidget ()
 
virtual void dropEvent (WDropEvent dropEvent)
 
virtual int boxPadding (Orientation orientation) const
 
virtual int boxBorder (Orientation orientation) const
 
void scheduleRender (WFlags< RepaintFlag > flags=None)
 

Detailed Description

A Widget that demonstrates a scatter plot.

Definition at line 49 of file ChartsExample.h.

Constructor & Destructor Documentation

◆ ScatterPlotExample()

ScatterPlotExample::ScatterPlotExample ( Wt::WContainerWidget *  parent)

Creates the scatter plot example.

Definition at line 284 of file ChartsExample.C.

284  :
285  WContainerWidget(parent)
286 {
287  new WText(WString::tr("scatter plot 2"), this);
288 
289  WStandardItemModel *model = new WStandardItemModel(40, 2, this);
290  model->setItemPrototype(new NumericItem());
291  model->setHeaderData(0, WString("X"));
292  model->setHeaderData(1, WString("Y = sin(X)"));
293 
294  for (unsigned i = 0; i < 40; ++i) {
295  double x = (static_cast<double>(i) - 20) / 4;
296 
297  model->setData(i, 0, x);
298  model->setData(i, 1, sin(x));
299  }
300 
301  /*
302  * Create the scatter plot.
303  */
304  WCartesianChart *chart = new WCartesianChart(this);
305  chart->setModel(model); // set the model
306  chart->setXSeriesColumn(0); // set the column that holds the X data
307  chart->setLegendEnabled(true); // enable the legend
308  chart->setZoomEnabled(true);
309  chart->setPanEnabled(true);
310  chart->setCrosshairEnabled(true);
311 
312  chart->setBackground(WColor(200,200,200));
313 
314  chart->setType(ScatterPlot); // set type to ScatterPlot
315 
316  // Typically, for mathematical functions, you want the axes to cross
317  // at the 0 mark:
318  chart->axis(XAxis).setLocation(ZeroValue);
319  chart->axis(YAxis).setLocation(ZeroValue);
320 
321  // Automatically layout chart (space for axes, legend, ...)
322  chart->setAutoLayoutEnabled();
323 
324  // Add the curves
325  WDataSeries *s = new WDataSeries(1, CurveSeries);
326  s->setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
327  chart->addSeries(s);
328 
329  chart->resize(800, 300); // WPaintedWidget must be given explicit size
330 
331  chart->setMargin(10, Top | Bottom); // add margin vertically
332  chart->setMargin(WLength::Auto, Left | Right); // center horizontally
333 
334  ChartConfig *config = new ChartConfig(chart, this);
335  config->setValueFill(ZeroValueFill);
336 }
Wt::Chart::WCartesianChart::setPanEnabled
void setPanEnabled(bool pan=true)
Key::Left
Wt::Chart::WCartesianChart::addSeries
void addSeries(std::unique_ptr< WDataSeries > series)
FillRangeType::ZeroValue
Key::Right
Wt::Chart::WAxis::setLocation
void setLocation(AxisValue value)
Wt::Chart::WCartesianChart::axis
WAxis & axis(Axis axis)
Wt::Chart::WDataSeries::setShadow
void setShadow(const WShadow &shadow)
Wt::Chart::WCartesianChart::setType
void setType(ChartType type)
Wt::WAbstractItemModel::setData
virtual bool setData(const WModelIndex &index, const cpp17::any &value, ItemDataRole role=ItemDataRole::Edit)
Wt::Chart::WCartesianChart::setCrosshairEnabled
void setCrosshairEnabled(bool crosshair=true)
Wt::WWebWidget::setMargin
virtual void setMargin(const WLength &margin, WFlags< Side > sides=AllSides) override
Wt::Chart::WCartesianChart::setZoomEnabled
void setZoomEnabled(bool zoom=true)
Wt::Chart::WAbstractChart::setBackground
void setBackground(const WBrush &background)
Wt::WPaintedWidget::resize
virtual void resize(const WLength &width, const WLength &height) override
Wt::Chart::WCartesianChart::setXSeriesColumn
void setXSeriesColumn(int modelColumn)
Wt::Chart::WAbstractChart::setModel
void setModel(const std::shared_ptr< WAbstractItemModel > &model)
ChartConfig::setValueFill
void setValueFill(Wt::Chart::FillRangeType fill)
Definition: ChartConfig.C:385
Wt::WStandardItemModel::setItemPrototype
void setItemPrototype(std::unique_ptr< WStandardItem > item)
Wt::Chart::WAbstractChart::setAutoLayoutEnabled
void setAutoLayoutEnabled(bool enabled=true)
Wt::Chart::WCartesianChart::setLegendEnabled
void setLegendEnabled(bool enabled)
Wt::WAbstractItemModel::setHeaderData
virtual bool setHeaderData(int section, Orientation orientation, const cpp17::any &value, ItemDataRole role=ItemDataRole::Edit)
ChartConfig
A class that allows configuration of a cartesian chart.
Definition: ChartConfig.h:40
The documentation for this class was generated from the following files:
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