Wt examples  3.3.8
Public Member Functions | Private Member Functions | Private Attributes | List of all members
PaintExample Class Reference

#include <PaintExample.h>

Inheritance diagram for PaintExample:
Inheritance graph
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Public Member Functions

 PaintExample (WContainerWidget *root, bool showTitle=true)
 
- 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
 

Private Member Functions

void rotateShape (int v)
 
void scaleShape (int v)
 

Private Attributes

ShapesWidget * shapes_
 

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

Definition at line 17 of file PaintExample.h.

Constructor & Destructor Documentation

PaintExample::PaintExample ( WContainerWidget *  root,
bool  showTitle = true 
)

Definition at line 17 of file PaintExample.C.

18  : WContainerWidget(root)
19 {
20  std::string text;
21  if (showTitle)
22  text += "<h2>Paint example</h2>";
23 
24  text +=
25  "<p>A simple example demonstrating cross-browser vector graphics."
26  "</p>"
27  "<p>The emweb logo below is painted using the Wt WPainter API from "
28  "bezier paths, and rendered to the browser using inline SVG, inline VML "
29  "or the HTML 5 &lt;canvas&gt; element."
30  "</p>"
31  "<p>"
32  "The example also demonstrates the horizontal and vertical "
33  "<a href=\"http://www.webtoolkit.eu/wt/doc/reference/html/classWt_1_1WSlider.html\" target=\"_blank\">"
34  "WSlider</a> widgets. Here,"
35  "the events of the WSlider widgets are used to scale and rotate the "
36  "emweb logo."
37  "</p>"
38  "<p>"
39  "In non-IE browsers, a different backend is used for positive or negative "
40  "angles (SVG or HTML canvas)."
41  "</p>";
42 
43  new WText(text, this);
44 
45  WContainerWidget *emweb = new WContainerWidget(this);
46  emweb->setMargin(WLength::Auto, Left | Right);
47 
48  WGridLayout *layout = new WGridLayout();
49  emweb->setLayout(layout);
50 
51  WSlider *scaleSlider = new WSlider(Horizontal);
52  scaleSlider->setMinimum(0);
53  scaleSlider->setMaximum(20);
54  scaleSlider->setValue(10);
55  scaleSlider->setTickInterval(5);
56  scaleSlider->setTickPosition(WSlider::TicksBothSides);
57  scaleSlider->resize(300, 50);
58  scaleSlider->sliderMoved().connect(this, &PaintExample::scaleShape);
59 
60  layout->addWidget(scaleSlider, 0, 1, AlignCenter | AlignMiddle);
61 
62  WSlider *rotateSlider = new WSlider(Vertical);
63  rotateSlider->setMinimum(-30);
64  rotateSlider->setMaximum(30);
65  rotateSlider->setValue(0);
66  rotateSlider->setTickInterval(10);
67  rotateSlider->setTickPosition(WSlider::TicksBothSides);
68  rotateSlider->resize(50, 400);
69  rotateSlider->sliderMoved().connect(this, &PaintExample::rotateShape);
70 
71  layout->addWidget(rotateSlider, 1, 0, AlignCenter | AlignMiddle);
72 
73  shapes_ = new ShapesWidget();
74  shapes_->setAngle(0.0);
75  shapes_->setRelativeSize(0.5);
76  shapes_->setPreferredMethod(WPaintedWidget::HtmlCanvas);
77 
78  layout->addWidget(shapes_, 1, 1, AlignCenter | AlignMiddle);
79 }
Wt::WSlider::setMinimum
void setMinimum(int minimum)
PaintExample::scaleShape
void scaleShape(int v)
Definition: PaintExample.C:90
Wt::WSlider::resize
virtual void resize(const WLength &width, const WLength &height)
PaintExample::shapes_
ShapesWidget * shapes_
Definition: PaintExample.h:23
PaintExample::rotateShape
void rotateShape(int v)
Definition: PaintExample.C:81
JSignal< int >::connect
Wt::Signals::connection connect(const F &function)
ShapesWidget::setAngle
void setAngle(double angle)
Definition: ShapesWidget.C:32
Wt::WPaintedWidget::setPreferredMethod
void setPreferredMethod(Method method)
Wt::WSlider::setTickInterval
void setTickInterval(int tickInterval)
Wt::WWebWidget::setMargin
virtual void setMargin(const WLength &margin, WFlags< Side > sides=All)
Wt::WSlider::sliderMoved
JSignal< int > & sliderMoved()
ShapesWidget::setRelativeSize
void setRelativeSize(double size)
Definition: ShapesWidget.C:42
Wt::WContainerWidget::setLayout
void setLayout(WLayout *layout)
Wt::WContainerWidget::WContainerWidget
WContainerWidget(WContainerWidget *parent=0)
Wt::WGridLayout::addWidget
void addWidget(WWidget *widget, int row, int column, WFlags< AlignmentFlag > alignment=0)
Wt::WSlider::setMaximum
void setMaximum(int maximum)
Wt::WSlider::setValue
virtual void setValue(int value)
Wt::WSlider::setTickPosition
void setTickPosition(WFlags< TickPosition > tickPosition)

Member Function Documentation

void PaintExample::rotateShape ( int  v)
private

Definition at line 81 of file PaintExample.C.

82 {
83  shapes_->setAngle(v / 2.0);
84 
85  // Being silly: test alternate rendering method
86  shapes_->setPreferredMethod(v < 0 ? WPaintedWidget::InlineSvgVml
87  : WPaintedWidget::HtmlCanvas);
88 }
PaintExample::shapes_
ShapesWidget * shapes_
Definition: PaintExample.h:23
ShapesWidget::setAngle
void setAngle(double angle)
Definition: ShapesWidget.C:32
Wt::WPaintedWidget::setPreferredMethod
void setPreferredMethod(Method method)
void PaintExample::scaleShape ( int  v)
private

Definition at line 90 of file PaintExample.C.

91 {
92  shapes_->setRelativeSize(0.1 + 0.9 * (v/20.0));
93 }
PaintExample::shapes_
ShapesWidget * shapes_
Definition: PaintExample.h:23
ShapesWidget::setRelativeSize
void setRelativeSize(double size)
Definition: ShapesWidget.C:42

Member Data Documentation

ShapesWidget* PaintExample::shapes_
private

Definition at line 23 of file PaintExample.h.

The documentation for this class was generated from the following files:
Generated on Mon Sep 4 2017 for the C++ Web Toolkit (Wt) by doxygen 1.8.11