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// 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 CORNER_IMAGE_H_
#define CORNER_IMAGE_H_
#include <Wt/WImage>
namespace Wt {
class WMemoryResource;
}
using namespace Wt;
/**
* @addtogroup styleexample
*/
/*@{*/
/*! \brief The CornerImage is an image to draw a rounded corner.
*
* The CornerImage is a dynamically generated WImage, which draws
* an arc of 90, to represent one of the four corners of a widget.
*
* The CornerImage is part of the %Wt style example.
*
* \sa RoundedWidget
*/
class CornerImage : public WImage
{
public:
/*! \brief One of the four corners of a widget.
*/
enum Corner { TopLeft = (int)Top | (int)Left, //!< Top left
TopRight = (int)Top | (int)Right, //!< Top right
BottomLeft = (int)Bottom | (int)Left, //!< Bottom left
BottomRight = (int)Bottom | (int)Right //!< Bottom right
};
/*! \brief Construct a new CornerImage.
*
* Construct a corner image, to draw the specified corner, with
* the given foreground and background color, and the specified radius.
*
* The colors must be constructed using red/green/blue values,
* using WColor::WColor(int, int, int).
*/
CornerImage(Corner corner, WColor fg, WColor bg,
int radius, WContainerWidget *parent = 0);
/*! \brief CornerImage destructor.
*/
~CornerImage();
/*! \brief Change the corner radius (and image dimensions).
*/
void setRadius(int radius);
/*! \brief Get the corner radius.
*/
int radius() const { return radius_; }
/*! \brief Change the foreground color.
*/
void setForeground(WColor color);
/*! \brief Get the foreground color.
*/
WColor foreground() const { return fg_; }
/*! \brief Change the background color.
*/
void setBackground(WColor color);
/*! \brief Get the background color.
*/
WColor background() const { return bg_; }
private:
//! One of the four corners, which this image represents.
Corner corner_;
//! Foreground color
WColor fg_;
//! Background color
WColor bg_;
//! Radius
int radius_;
/*! \brief The resource which contains the generated image.
*/
WMemoryResource *resource_;
/*! \brief Regenerate the image.
*/
void compute();
};
/*@}*/
#endif // CORNER_IMAGE_H_
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