Wt examples 3.3.12
Public Member Functions | List of all members
TimeSeriesExample Class Reference

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

#include <ChartsExample.h>

Inheritance diagram for TimeSeriesExample:
Inheritance graph
[legend]

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 ()
 
int scrollTop () const
 
int scrollLeft () const
 
- Public Member Functions inherited from Wt::WInteractWidget
 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)
 
void unsetDraggable ()
 
void setMouseOverDelay (int delay)
 
int mouseOverDelay () const
 
virtual void setPopup (bool popup)
 
virtual void load ()
 
virtual bool isEnabled () const
 
- Public Member Functions inherited from Wt::WWebWidget
 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 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 bool hasStyleClass (const WString &styleClass) const
 
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 void setDeferredToolTip (bool enable, 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 setId (const std::string &id)
 
virtual WWidgetfind (const std::string &name)
 
virtual WWidgetfindById (const std::string &id)
 
virtual void setSelectable (bool selectable)
 
virtual void doJavaScript (const std::string &javascript)
 
virtual const std::string id () const
 
void setLoadLaterWhenInvisible (bool)
 
std::string htmlTagName () const
 
void setHtmlTagName (const std::string &tag)
 
const std::vector< WWidget * > & children () const
 
SignalchildrenChanged ()
 
virtual void setCanReceiveFocus (bool enabled)
 
virtual bool canReceiveFocus () const
 
virtual bool setFirstFocus ()
 
virtual void setFocus (bool focus)
 
virtual bool hasFocus () const
 
virtual void setTabIndex (int index)
 
virtual int tabIndex () const
 
EventSignalblurred ()
 
EventSignalfocussed ()
 
virtual bool scrollVisibilityEnabled () const WT_CXX11ONLY(final override)
 
virtual void setScrollVisibilityEnabled (bool enabled) WT_CXX11ONLY(final override)
 
virtual int scrollVisibilityMargin () const WT_CXX11ONLY(final override)
 
virtual void setScrollVisibilityMargin (int margin) WT_CXX11ONLY(final override)
 
virtual Signal< bool > & scrollVisibilityChanged () WT_CXX11ONLY(final override)
 
virtual bool isScrollVisible () const WT_CXX11ONLY(final override)
 
virtual void setThemeStyleEnabled (bool enabled)
 
virtual bool isThemeStyleEnabled () const
 
virtual void removeChild (WObject *child)
 
void setFocus ()
 
virtual void setFocus (bool focus)=0
 
- Public Member Functions inherited from Wt::WWidget
virtual ~WWidget ()
 
WWidgetparent () const
 
void setWidth (const WLength &width)
 
void setHeight (const WLength &height)
 
virtual void positionAt (const WWidget *widget, 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 setObjectName (const std::string &name)
 
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
 WObject (WObject *parent=0)
 
virtual ~WObject ()
 
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)
 
void addChild (WObject *child)
 
const std::vector< WObject * > & children () const
 
WObjectparent () const
 

Additional Inherited Members

- Public Types inherited from Wt::WContainerWidget
enum  Overflow
 
- Public Types inherited from Wt::WObject
typedef void(WObject::* Method) ()
 
- Static Public Member Functions inherited from Wt::WWebWidget
static WString escapeText (const WString &text, bool newlinesToo=false)
 
static std::string & escapeText (std::string &text, bool newlinestoo=false)
 
static bool removeScript (WString &text)
 
static std::string jsStringLiteral (const std::string &v, char delimiter='\'')
 
- Static Public Member Functions inherited from Wt::WWidget
static WString tr (const char *key)
 
- Public Attributes inherited from Wt::WContainerWidget
 OverflowVisible
 
 OverflowAuto
 
 OverflowHidden
 
 OverflowScroll
 
- Protected Member Functions inherited from Wt::WContainerWidget
virtual void removeChild (WObject *child)
 
- Protected Member Functions inherited from Wt::WInteractWidget
virtual void propagateSetEnabled (bool enabled)
 
- Protected Member Functions inherited from Wt::WWebWidget
virtual void enableAjax ()
 
virtual WStatelessSlot * getStateless (Method method)
 
virtual void render (WFlags< RenderFlag > flags)
 
- Protected Member Functions inherited from Wt::WWidget
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
 
void scheduleRender (WFlags< RepaintFlag > flags=0)
 
- Static Protected Member Functions inherited from Wt::WObject
static WObjectsender ()
 

Detailed Description

A widget that demonstrates a times series chart.

Definition at line 29 of file ChartsExample.h.

Constructor & Destructor Documentation

◆ TimeSeriesExample()

TimeSeriesExample::TimeSeriesExample ( Wt::WContainerWidget parent)

Creates the time series scatter plot example.

Definition at line 193 of file ChartsExample.C.

193 :
195{
196 new WText(WString::tr("scatter plot"), this);
197
198 WAbstractItemModel *model = readCsvFile(
199 WApplication::appRoot() + "timeseries.csv", this);
200
201 if (!model)
202 return;
203
204 /*
205 * Parses the first column as dates, to be able to use a date scale
206 */
207 for (int i = 0; i < model->rowCount(); ++i) {
208 WString s = asString(model->data(i, 0));
209 WDate d = WDate::fromString(s, "dd/MM/yy");
210 model->setData(i, 0, d);
211 }
212
213 // Show a view that allows editing of the model.
214 WContainerWidget *w = new WContainerWidget(this);
215 WTableView *table = new WTableView(w);
216
217 table->setMargin(10, Top | Bottom);
219
220 table->setModel(model);
221 table->setSortingEnabled(false); // Does not make much sense for time series
222 table->setColumnResizeEnabled(true);
224 table->setAlternatingRowColors(true);
227 table->setRowHeight(22);
228
229 // Editing does not really work without Ajax, it would require an
230 // additional button somewhere to confirm the edited value.
231 if (WApplication::instance()->environment().ajax()) {
232 table->resize(800, 20 + 5*22);
234 } else {
235 table->resize(800, 20 + 5*22 + 25);
237 }
238
239 WItemDelegate *delegate = new WItemDelegate(this);
240 delegate->setTextFormat("%.1f");
241 table->setItemDelegate(delegate);
242 table->setItemDelegateForColumn(0, new WItemDelegate(this));
243
244 table->setColumnWidth(0, 80);
245 for (int i = 1; i < model->columnCount(); ++i)
246 table->setColumnWidth(i, 90);
247
248 /*
249 * Create the scatter plot.
250 */
251 WCartesianChart *chart = new WCartesianChart(this);
252 //chart->setPreferredMethod(WPaintedWidget::PngImage);
253 //chart->setBackground(gray);
254 chart->setModel(model); // set the model
255 chart->setXSeriesColumn(0); // set the column that holds the X data
256 chart->setLegendEnabled(true); // enable the legend
257 chart->setZoomEnabled(true);
258 chart->setPanEnabled(true);
259
260 chart->setType(ScatterPlot); // set type to ScatterPlot
261 chart->axis(XAxis).setScale(DateScale); // set scale of X axis to DateScale
262
263 // Automatically layout chart (space for axes, legend, ...)
264 chart->setAutoLayoutEnabled();
265
266 chart->setBackground(WColor(200,200,200));
267 /*
268 * Add first two columns as line series
269 */
270 for (int i = 1; i < 3; ++i) {
272 s->setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
273 chart->addSeries(s);
274 }
275
276 chart->resize(800, 400); // WPaintedWidget must be given explicit size
277
278 chart->setMargin(10, Top | Bottom); // add margin vertically
279 chart->setMargin(WLength::Auto, Left | Right); // center horizontally
280
281 new ChartConfig(chart, this);
282}
A class that allows configuration of a cartesian chart.
Definition ChartConfig.h:41
void setModel(WAbstractItemModel *model)
void setBackground(const WBrush &background)
void setAutoLayoutEnabled(bool enabled=true)
void setScale(AxisScale scale)
void setType(ChartType type)
void setLegendEnabled(bool enabled)
void setPanEnabled(bool pan=true)
void setZoomEnabled(bool zoom=true)
void setXSeriesColumn(int modelColumn)
WAxis & axis(Axis axis)
void addSeries(const WDataSeries &series)
void setShadow(const WShadow &shadow)
virtual bool setData(const WModelIndex &index, const boost::any &value, int role=EditRole)
virtual boost::any data(const WModelIndex &index, int role=DisplayRole) const=0
virtual int rowCount(const WModelIndex &parent=WModelIndex()) const=0
virtual int columnCount(const WModelIndex &parent=WModelIndex()) const=0
virtual void setHeaderAlignment(int column, WFlags< AlignmentFlag > alignment)
void setItemDelegate(WAbstractItemDelegate *delegate)
void setColumnResizeEnabled(bool enabled)
void setItemDelegateForColumn(int column, WAbstractItemDelegate *delegate)
void setEditTriggers(WFlags< EditTrigger > editTriggers)
virtual void setColumnAlignment(int column, AlignmentFlag alignment)
void setSortingEnabled(bool enabled)
void setSelectionMode(SelectionMode mode)
virtual void setMargin(const WLength &margin, WFlags< Side > sides=All)
static WDate fromString(const WString &s)
void setTextFormat(const WString &format)
static WLength Auto
virtual void resize(const WLength &width, const WLength &height)
static WString tr(const char *key)
virtual void setModel(WAbstractItemModel *model)
virtual void resize(const WLength &width, const WLength &height)
virtual void setRowHeight(const WLength &rowHeight)
virtual void setColumnWidth(int column, const WLength &width)
virtual void setAlternatingRowColors(bool enable)
virtual void setMargin(const WLength &margin, WFlags< Side > sides=All)
WWidget * parent() const
WString asString(const boost::any &v, const WString &formatString=WString())
NoSelection
AlignCenter

The documentation for this class was generated from the following files:

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