Wt examples  3.3.0
Public Member Functions | List of all members
CategoryExample Class Reference

A Widget that demonstrates a category chart. More...

#include <ChartsExample.h>

Inheritance diagram for CategoryExample:
Inheritance graph
[legend]

Public Member Functions

 CategoryExample (Wt::WContainerWidget *parent)
 Creates the category chart example. More...
 
- 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 ()
 
- 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 setMouseOverDelay (int delay)
 
int mouseOverDelay () const
 
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 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 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 const WStringtoolTip () 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
 
- 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
 
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
 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)
 
const std::vector< WObject * > & children () const
 
WObjectparent () const
 

Additional Inherited Members

- Public Types inherited from Wt::WContainerWidget
enum  Overflow
 
- 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= '\'')
 
- Public Attributes inherited from Wt::WContainerWidget
 OverflowVisible
 
 OverflowAuto
 
 OverflowHidden
 
 OverflowScroll
 
- Protected Member Functions inherited from Wt::WInteractWidget
virtual void propagateSetEnabled (bool enabled)
 
- Static Protected Member Functions inherited from Wt::WObject
static WObjectsender ()
 

Detailed Description

A Widget that demonstrates a category chart.

Definition at line 39 of file ChartsExample.h.

Constructor & Destructor Documentation

CategoryExample::CategoryExample ( Wt::WContainerWidget parent)

Creates the category chart example.

Definition at line 83 of file ChartsExample.C.

83  :
84  WContainerWidget(parent)
85 {
86  new WText(WString::tr("category chart"), this);
87 
88  WAbstractItemModel *model
89  = readCsvFile(WApplication::appRoot() + "category.csv", this);
90 
91  if (!model)
92  return;
93 
94  // Show a view that allows editing of the model.
95  WContainerWidget *w = new WContainerWidget(this);
96  WTableView *table = new WTableView(w);
97 
98  table->setMargin(10, Top | Bottom);
99  table->setMargin(WLength::Auto, Left | Right);
100 
101  table->setModel(model);
102  table->setSortingEnabled(true);
103  table->setColumnResizeEnabled(true);
104  // table->setSelectionMode(ExtendedSelection);
105  table->setAlternatingRowColors(true);
106  table->setColumnAlignment(0, AlignCenter);
107  table->setHeaderAlignment(0, AlignCenter);
108  table->setRowHeight(22);
109 
110  // Editing does not really work without Ajax, it would require an
111  // additional button somewhere to confirm the edited value.
112  if (WApplication::instance()->environment().ajax()) {
113  table->resize(600, 20 + 5*22);
114  table->setEditTriggers(WAbstractItemView::SingleClicked);
115  } else {
116  table->resize(600, WLength::Auto);
117  table->setEditTriggers(WAbstractItemView::NoEditTrigger);
118  }
119 
120  // We use a single delegate for all items which rounds values to
121  // the closest integer value.
122  WItemDelegate *delegate = new WItemDelegate(this);
123  delegate->setTextFormat("%.f");
124  table->setItemDelegate(delegate);
125 
126  table->setColumnWidth(0, 80);
127  for (int i = 1; i < model->columnCount(); ++i)
128  table->setColumnWidth(i, 120);
129 
130  /*
131  * Create the category chart.
132  */
133  WCartesianChart *chart = new WCartesianChart(this);
134  // chart->setPreferredMethod(WPaintedWidget::PngImage);
135  chart->setModel(model); // set the model
136  chart->setXSeriesColumn(0); // set the column that holds the categories
137  chart->setLegendEnabled(true); // enable the legend
138 
139  // Provide space for the X and Y axis and title.
140  chart->setPlotAreaPadding(80, Left);
141  chart->setPlotAreaPadding(40, Top | Bottom);
142 
143  /*
144  * Add all (but first) column as bar series
145  */
146  for (int i = 1; i < model->columnCount(); ++i) {
147  WDataSeries s(i, BarSeries);
148  s.setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
149  chart->addSeries(s);
150  }
151 
152  chart->resize(800, 400);
153 
154  chart->setMargin(10, Top | Bottom);
155  chart->setMargin(WLength::Auto, Left | Right);
156 
157  /*
158  * Provide a widget to manipulate chart properties
159  */
160  new ChartConfig(chart, this);
161 }

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

Generated on Wed Oct 23 2013 for the C++ Web Toolkit (Wt) by doxygen 1.8.4