Wt examples  3.3.8
Public Member Functions | List of all members
CategoryExample Class Reference
Charts example

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)
 
WLayout * layout ()
 
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 WWidget * widget (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< AlignmentFlag > contentAlignment () 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 ()
 
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=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< Side > clearSides () 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 WCssDecorationStyle & decorationStyle ()
 
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 WWidget * find (const std::string &name)
 
virtual WWidget * findById (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
 
Signal & childrenChanged ()
 
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
 
EventSignal & blurred ()
 
EventSignal & focussed ()
 
virtual bool scrollVisibilityEnabled () const WT_CXX11ONLY(finaloverride)
 
virtual void setScrollVisibilityEnabled (bool enabled) WT_CXX11ONLY(finaloverride)
 
virtual int scrollVisibilityMargin () const WT_CXX11ONLY(finaloverride)
 
virtual void setScrollVisibilityMargin (int margin) WT_CXX11ONLY(finaloverride)
 
virtual Signal< bool > & scrollVisibilityChanged () WT_CXX11ONLY(finaloverride)
 
virtual bool isScrollVisible () const WT_CXX11ONLY(finaloverride)
 
virtual void setThemeStyleEnabled (bool enabled)
 
virtual bool isThemeStyleEnabled () const
 
- Public Member Functions inherited from Wt::WWidget
virtual ~WWidget ()
 
WWidget * parent () const
 
virtual void removeChild (WObject *child)
 
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
 
WObject * parent () 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::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 WObject * sender ()
 

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 111 of file ChartsExample.C.

111  :
112  WContainerWidget(parent)
113 {
114  new WText(WString::tr("category chart"), this);
115 
116  WAbstractItemModel *model
117  = readCsvFile(WApplication::appRoot() + "category.csv", this);
118 
119  if (!model)
120  return;
121 
122  // Show a view that allows editing of the model.
123  WContainerWidget *w = new WContainerWidget(this);
124  WTableView *table = new WTableView(w);
125 
126  table->setMargin(10, Top | Bottom);
127  table->setMargin(WLength::Auto, Left | Right);
128 
129  table->setModel(model);
130  table->setSortingEnabled(true);
131  table->setColumnResizeEnabled(true);
132  // table->setSelectionMode(ExtendedSelection);
133  table->setAlternatingRowColors(true);
134  table->setColumnAlignment(0, AlignCenter);
135  table->setHeaderAlignment(0, AlignCenter);
136  table->setRowHeight(22);
137 
138  // Editing does not really work without Ajax, it would require an
139  // additional button somewhere to confirm the edited value.
140  if (WApplication::instance()->environment().ajax()) {
141  table->resize(600, 20 + 5*22);
142  table->setEditTriggers(WAbstractItemView::SingleClicked);
143  } else {
144  table->resize(600, WLength::Auto);
145  table->setEditTriggers(WAbstractItemView::NoEditTrigger);
146  }
147 
148  // We use a single delegate for all items which rounds values to
149  // the closest integer value.
150  WItemDelegate *delegate = new WItemDelegate(this);
151  delegate->setTextFormat("%.f");
152  table->setItemDelegate(delegate);
153 
154  table->setColumnWidth(0, 80);
155  for (int i = 1; i < model->columnCount(); ++i)
156  table->setColumnWidth(i, 120);
157 
158  /*
159  * Create the category chart.
160  */
161  WCartesianChart *chart = new WCartesianChart(this);
162  chart->setModel(model); // set the model
163  chart->setXSeriesColumn(0); // set the column that holds the categories
164  chart->setLegendEnabled(true); // enable the legend
165  chart->setZoomEnabled(true);
166  chart->setPanEnabled(true);
167 
168  // Automatically layout chart (space for axes, legend, ...)
169  chart->setAutoLayoutEnabled(true);
170 
171  chart->setBackground(WColor(200,200,200));
172 
173  /*
174  * Add all (but first) column as bar series
175  */
176  for (int i = 1; i < model->columnCount(); ++i) {
177  WDataSeries *s = new WDataSeries(i, BarSeries);
178  s->setShadow(WShadow(3, 3, WColor(0, 0, 0, 127), 3));
179  chart->addSeries(s);
180  }
181 
182  chart->resize(800, 400);
183 
184  chart->setMargin(10, Top | Bottom);
185  chart->setMargin(WLength::Auto, Left | Right);
186 
187  /*
188  * Provide a widget to manipulate chart properties
189  */
190  new ChartConfig(chart, this);
191 }
Wt::WItemDelegate::setTextFormat
void setTextFormat(const WString &format)
Wt::WCompositeWidget::setMargin
virtual void setMargin(const WLength &margin, WFlags< Side > sides=All)
Wt::Chart::WCartesianChart::setPanEnabled
void setPanEnabled(bool pan=true)
Wt::WTableView::setColumnWidth
virtual void setColumnWidth(int column, const WLength &width)
Wt::Chart::WCartesianChart::addSeries
void addSeries(const WDataSeries &series)
Wt::Chart::WDataSeries::setShadow
void setShadow(const WShadow &shadow)
Wt::WAbstractItemView::setItemDelegate
void setItemDelegate(WAbstractItemDelegate *delegate)
Wt::WPaintedWidget::resize
virtual void resize(const WLength &width, const WLength &height)
Wt::WTableView::resize
virtual void resize(const WLength &width, const WLength &height)
Wt::Chart::WCartesianChart::setZoomEnabled
void setZoomEnabled(bool zoom=true)
Wt::Chart::WAbstractChart::setBackground
void setBackground(const WBrush &background)
Wt::WWebWidget::setMargin
virtual void setMargin(const WLength &margin, WFlags< Side > sides=All)
Wt::Chart::WAbstractChart::setModel
void setModel(WAbstractItemModel *model)
Wt::Chart::WCartesianChart::setXSeriesColumn
void setXSeriesColumn(int modelColumn)
Wt::WAbstractItemModel::columnCount
virtual int columnCount(const WModelIndex &parent=WModelIndex()) const =0
Wt::WAbstractItemView::setEditTriggers
void setEditTriggers(WFlags< EditTrigger > editTriggers)
Wt::WAbstractItemView::setColumnResizeEnabled
void setColumnResizeEnabled(bool enabled)
Wt::Chart::WAbstractChart::setAutoLayoutEnabled
void setAutoLayoutEnabled(bool enabled=true)
Wt::WContainerWidget::WContainerWidget
WContainerWidget(WContainerWidget *parent=0)
Wt::WTableView::setAlternatingRowColors
virtual void setAlternatingRowColors(bool enable)
Wt::WAbstractItemView::setHeaderAlignment
virtual void setHeaderAlignment(int column, WFlags< AlignmentFlag > alignment)
Wt::WTableView::setRowHeight
virtual void setRowHeight(const WLength &rowHeight)
Wt::Chart::WCartesianChart::setLegendEnabled
void setLegendEnabled(bool enabled)
Wt::WAbstractItemView::setSortingEnabled
void setSortingEnabled(bool enabled)
ChartConfig
A class that allows configuration of a cartesian chart.
Definition: ChartConfig.h:37
BarSeries
BarSeries
Wt::WTableView::setModel
virtual void setModel(WAbstractItemModel *model)
Wt::WAbstractItemView::setColumnAlignment
virtual void setColumnAlignment(int column, AlignmentFlag alignment)
The documentation for this class was generated from the following files:
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