Wt examples  3.2.1
Public Member Functions
TimeSeriesExample Class Reference

A widget that demonstrates a times series chart. More...

#include <ChartsExample.h>

Inheritance diagram for TimeSeriesExample:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 TimeSeriesExample (Wt::WContainerWidget *parent)
 Creates the time series scatter plot example.
- Public Member Functions inherited from Wt::WContainerWidget
 WContainerWidget (WContainerWidget *parent=0)
 ~WContainerWidget ()
void setLayout (WLayout *layout)
void setLayout (WLayout *layout, WFlags< AlignmentFlag > alignment)
WLayoutlayout ()
virtual void addWidget (WWidget *widget)
virtual void insertBefore (WWidget *widget, WWidget *before)
virtual void insertWidget (int index, WWidget *widget)
virtual void removeWidget (WWidget *widget)
virtual void clear ()
virtual int indexOf (WWidget *widget) const
virtual WWidgetwidget (int index) const
virtual int count () const
void setContentAlignment (WFlags< AlignmentFlag > contentAlignment)
void setPadding (const WLength &padding, WFlags< Side > sides=All)
WLength padding (Side side) const
WFlags< AlignmentFlagcontentAlignment () const
void setOverflow (Overflow overflow, WFlags< Orientation > orientation=(Horizontal|Vertical))
void setList (bool list, bool ordered=false)
bool isList () const
bool isUnorderedList () const
bool isOrderedList () const
EventSignal< WScrollEvent > & scrolled ()
 WInteractWidget (WContainerWidget *parent=0)
EventSignal< WKeyEvent > & keyWentDown ()
EventSignal< WKeyEvent > & keyPressed ()
EventSignal< WKeyEvent > & keyWentUp ()
EventSignalenterPressed ()
EventSignalescapePressed ()
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=0, bool isDragWidgetOnly=false, WObject *sourceWidget=0)
virtual void load ()
virtual bool isEnabled () const
 WWebWidget (WContainerWidget *parent=0)
virtual void setPositionScheme (PositionScheme scheme)
virtual PositionScheme positionScheme () const
virtual void setOffsets (const WLength &offset, WFlags< Side > sides=All)
virtual WLength offset (Side s) const
virtual void resize (const WLength &width, const WLength &height)
virtual WLength width () const
virtual WLength height () const
virtual void setMinimumSize (const WLength &width, const WLength &height)
virtual WLength minimumWidth () const
virtual WLength minimumHeight () const
virtual void setMaximumSize (const WLength &width, const WLength &height)
virtual WLength maximumWidth () const
virtual WLength maximumHeight () const
virtual void setLineHeight (const WLength &height)
virtual WLength lineHeight () const
virtual void setFloatSide (Side s)
virtual Side floatSide () const
virtual void setClearSides (WFlags< Side > sides)
virtual WFlags< SideclearSides () const
virtual void setMargin (const WLength &margin, WFlags< Side > sides=All)
virtual WLength margin (Side side) const
virtual void setHiddenKeepsGeometry (bool enabled)
virtual bool hiddenKeepsGeometry () const
virtual void setHidden (bool hidden, const WAnimation &animation=WAnimation())
virtual bool isHidden () const
virtual bool isVisible () const
virtual void setDisabled (bool disabled)
virtual bool isDisabled () const
virtual void setPopup (bool popup)
virtual bool isPopup () const
virtual void setInline (bool isInline)
virtual bool isInline () const
virtual void setDecorationStyle (const WCssDecorationStyle &style)
virtual WCssDecorationStyledecorationStyle ()
virtual void setStyleClass (const WString &styleClass)
virtual WString styleClass () const
virtual void addStyleClass (const WString &styleClass, bool force=false)
virtual void removeStyleClass (const WString &styleClass, bool force=false)
virtual void setVerticalAlignment (AlignmentFlag alignment, const WLength &length=WLength())
virtual AlignmentFlag verticalAlignment () const
virtual WLength verticalAlignmentLength () const
virtual void setToolTip (const WString &text, TextFormat textFormat=PlainText)
virtual WString toolTip () const
virtual void refresh ()
virtual void setAttributeValue (const std::string &name, const WString &value)
virtual WString attributeValue (const std::string &name) const
virtual void setJavaScriptMember (const std::string &name, const std::string &value)
virtual std::string javaScriptMember (const std::string &name) const
virtual void callJavaScriptMember (const std::string &name, const std::string &args)
virtual bool loaded () const
virtual void setTabIndex (int index)
virtual int tabIndex () const
virtual void setId (const std::string &id)
virtual WWidgetfind (const std::string &name)
virtual void setSelectable (bool selectable)
virtual void doJavaScript (const std::string &javascript)
virtual const std::string id () const
void setLoadLaterWhenInvisible (bool)
const std::vector< WWidget * > & children () const
SignalchildrenChanged ()
bool isRendered () const
virtual ~WWidget ()
WWidgetparent () const
void setWidth (const WLength &width)
void setHeight (const WLength &height)
virtual void positionAt (const WWidget *widget, Orientation orientation=Vertical)
std::string jsRef () const
virtual void acceptDrops (const std::string &mimeType, const WString &hoverStyleClass=WString())
virtual void stopAcceptDrops (const std::string &mimeType)
virtual void htmlText (std::ostream &out)
void hide ()
void animateHide (const WAnimation &animation)
void show ()
void animateShow (const WAnimation &animation)
void enable ()
void disable ()
bool layoutSizeAware () const
 WObject (WObject *parent=0)
virtual ~WObject ()
void setObjectName (const std::string &name)
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)())
WStatelessSlot * implementJavaScript (void(T::*method)(), const std::string &jsCode)
void addChild (WObject *child)

Additional Inherited Members

- Public Types inherited from Wt::WContainerWidget
enum  Overflow
- Public Attributes inherited from Wt::WContainerWidget
 OverflowVisible
 OverflowAuto
 OverflowHidden
 OverflowScroll
- Protected Member Functions inherited from Wt::WContainerWidget
virtual void propagateSetEnabled (bool enabled)
virtual void enableAjax ()
virtual void removeChild (WObject *child)
void setLayoutSizeAware (bool sizeAware)
virtual void layoutSizeChanged (int width, int height)
 WWidget (WContainerWidget *parent=0)
virtual void dropEvent (WDropEvent dropEvent)
virtual int boxPadding (Orientation orientation) const
virtual int boxBorder (Orientation orientation) const
virtual WStatelessSlot * getStateless (Method method)

Detailed Description

A widget that demonstrates a times series chart.

Definition at line 29 of file ChartsExample.h.


Constructor & Destructor Documentation

TimeSeriesExample::TimeSeriesExample ( Wt::WContainerWidget parent)

Creates the time series scatter plot example.

Definition at line 163 of file ChartsExample.C.

:
{
new WText(WString::tr("scatter plot"), this);
WAbstractItemModel *model = readCsvFile(
WApplication::appRoot() + "timeseries.csv", this);
if (!model)
return;
/*
* Parses the first column as dates, to be able to use a date scale
*/
for (int i = 0; i < model->rowCount(); ++i) {
WString s = asString(model->data(i, 0));
WDate d = WDate::fromString(s, "dd/MM/yy");
model->setData(i, 0, d);
}
// Show a view that allows editing of the model.
WTableView *table = new WTableView(w);
table->setMargin(10, Top | Bottom);
table->setMargin(WLength::Auto, Left | Right);
table->setModel(model);
table->setSortingEnabled(false); // Does not make much sense for time series
table->setColumnResizeEnabled(true);
table->setSelectionMode(NoSelection);
table->setColumnAlignment(0, AlignCenter);
table->setHeaderAlignment(0, AlignCenter);
table->setRowHeight(22);
// Editing does not really work without Ajax, it would require an
// additional button somewhere to confirm the edited value.
if (WApplication::instance()->environment().ajax()) {
table->resize(800, 20 + 5*22);
table->setEditTriggers(WAbstractItemView::SingleClicked);
} else {
table->resize(800, 20 + 5*22 + 25);
table->setEditTriggers(WAbstractItemView::NoEditTrigger);
}
WItemDelegate *delegate = new WItemDelegate(this);
delegate->setTextFormat("%.1f");
table->setItemDelegate(delegate);
table->setColumnWidth(0, 80);
for (int i = 1; i < model->columnCount(); ++i)
table->setColumnWidth(i, 90);
/*
* Create the scatter plot.
*/
WCartesianChart *chart = new WCartesianChart(this);
//chart->setPreferredMethod(WPaintedWidget::PngImage);
//chart->setBackground(gray);
chart->setModel(model); // set the model
chart->setXSeriesColumn(0); // set the column that holds the X data
chart->setLegendEnabled(true); // enable the legend
chart->setType(ScatterPlot); // set type to ScatterPlot
chart->axis(XAxis).setScale(DateScale); // set scale of X axis to DateScale
// Provide space for the X and Y axis and title.
chart->setPlotAreaPadding(80, Left);
chart->setPlotAreaPadding(40, Top | Bottom);
/*
* Add first two columns as line series
*/
for (int i = 1; i < 3; ++i) {
s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
chart->addSeries(s);
}
chart->resize(800, 400); // WPaintedWidget must be given explicit size
chart->setMargin(10, Top | Bottom); // add margin vertically
chart->setMargin(WLength::Auto, Left | Right); // center horizontally
new ChartConfig(chart, this);
}

The documentation for this class was generated from the following files:
Generated on Sun May 27 2012 for the C++ Web Toolkit (Wt) by doxygen 1.8.1