/usr/include/Wt/WCircleArea is in libwt-dev 3.1.10-1ubuntu2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | // This may look like C code, but it's really -*- C++ -*-
/*
* Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
*
* See the LICENSE file for terms of use.
*/
#ifndef WCIRCLE_AREA_H_
#define WCIRCLE_AREA_H_
#include <Wt/WAbstractArea>
namespace Wt {
class WPointF;
class WPoint;
/*! \class WCircleArea Wt/WCircleArea Wt/WCircleArea
* \brief A interactive area in a widget, specified by a circle.
*
* The area may be added to a WImage or WPaintedWidget to provide
* interactivity on a circular area of the image. The circle is
* specified in pixel coordinates.
*
* \if cpp
* Usage example:
* \code
* Wt::WImage *image = new Wt::WImage("images/events.png", this);
* Wt::WCircleArea *area = new Wt::WCircleArea(20, 30, 15);
* image->addArea(area);
*
* area->clicked().connect(this, &MyWidget::areaClicked);
* \endcode
* \endif
*
* \sa WImage::addArea(), WPaintedWidget::addArea()
* \sa WRectArea, WPolygonArea
*/
class WT_API WCircleArea : public WAbstractArea
{
public:
/*! \brief Default constructor.
*
* Specifies a circular area with center (0, 0) and radius 0.
*/
WCircleArea();
/*! \brief Creates a circular area with given geometry.
*
* The arguments are in pixel units.
*/
WCircleArea(int x, int y, int radius);
/*! \brief Sets the center.
*/
void setCenter(const WPoint& point);
/*! \brief Sets the center.
*/
void setCenter(const WPointF& point);
/*! \brief Sets the center.
*/
void setCenter(int x, int y);
/*! \brief Returns the center X coordinate.
*/
int centerX() const { return x_; }
/*! \brief Returns the center Y coordinate.
*/
int centerY() const { return y_; }
/*! \brief Sets the radius.
*/
void setRadius(int radius);
/*! \brief Returns the radius.
*/
int radius() const { return r_; }
private:
int x_, y_, r_;
protected:
virtual void updateDom(DomElement& element, bool all);
};
}
#endif // WCIRCLE_AREA_H_
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