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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 | // 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 EXT_COMPONENT_H_
#define EXT_COMPONENT_H_
#include <Wt/Ext/Widget>
namespace Wt {
namespace Ext {
/*! \class Component Wt/Ext/Component Wt/Ext/Component
* \brief An abstract base class for widgets that can be visually disabled.
*
* %Component is the abstract base class of all major %Ext widgets,
* and offers an API to enable or disable a widget.
*
* \ingroup ext
*/
class WT_EXT_API Component : public Widget
{
protected:
Component(WContainerWidget *parent = 0);
public:
/*! \brief Enable or disable the widget.
*/
void setEnabled(bool how);
/*! \brief Enable the widget.
*/
void enable();
/*! \brief Disable the widget.
*/
void disable();
/*! \brief Return if enabled.
*/
bool isEnabled() const { return enabled_; }
protected:
virtual void createConfig(std::ostream& config);
private:
bool enabled_;
void undoEnable();
bool wasEnabled_;
};
}
}
#endif // EXT_COMPONENT_H_
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