44c874b731
FL_OVERRIDE is defined as `override` for C++11 and higher FL_OVERRIDE is defined as `override` for VisualC 2015 and newer Don't interfere with Fl_Widget::override()
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//
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// Forms free header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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/* \file
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Fl_Free widget . */
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#ifndef Fl_Free_H
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#define Fl_Free_H
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#ifndef Fl_Widget_H
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#include "Fl_Widget.H"
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#endif
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#define FL_NORMAL_FREE 1 /**< normal event handling */
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#define FL_SLEEPING_FREE 2 /**< deactivate event handling */
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#define FL_INPUT_FREE 3 /**< accepts FL_FOCUS events */
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#define FL_CONTINUOUS_FREE 4 /**< repeated timeout handling */
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#define FL_ALL_FREE 5 /**< FL_INPUT_FREE and FL_CONTINOUS_FREE */
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/** appropriate signature for handle function */
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typedef int (*FL_HANDLEPTR)(Fl_Widget *, int , float, float, char);
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/**
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Emulation of the Forms "free" widget.
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This emulation allows the free demo to run, and appears to be useful for
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porting programs written in Forms which use the free widget or make
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subclasses of the Forms widgets.
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There are five types of free, which determine when the handle function
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is called:
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\li \c FL_NORMAL_FREE normal event handling.
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\li \c FL_SLEEPING_FREE deactivates event handling (widget is inactive).
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\li \c FL_INPUT_FREE accepts FL_FOCUS events.
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\li \c FL_CONTINUOUS_FREE sets a timeout callback 100 times a second and
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provides an FL_STEP event. This has obvious
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detrimental effects on machine performance.
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\li \c FL_ALL_FREE same as FL_INPUT_FREE and FL_CONTINUOUS_FREE.
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*/
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class FL_EXPORT Fl_Free : public Fl_Widget {
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FL_HANDLEPTR hfunc;
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static void step(void *);
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protected:
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void draw() FL_OVERRIDE;
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public:
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int handle(int e) FL_OVERRIDE;
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Fl_Free(uchar t,int X,int Y,int W,int H,const char *L,FL_HANDLEPTR hdl);
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~Fl_Free();
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};
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// old event names for compatibility:
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#define FL_MOUSE FL_DRAG /**< for backward compatibility */
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#define FL_DRAW 100 /**< for backward compatibility [UNUSED]*/
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#define FL_STEP 101 /**< for backward compatibility */
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#define FL_FREEMEM 102 /**< for backward compatibility [UNUSED]*/
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#define FL_FREEZE 103 /**< for backward compatibility [UNUSED]*/
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#define FL_THAW 104 /**< for backward compatibility [UNUSED]*/
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#endif
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