f09e17c3c5
- remove obsolete svn '$Id$' tags from all source files - update .fl files and generated files accordingly - replace 'http://www.fltk.org' URL's with 'https://...' - replace bug report URL 'str.php' with 'bugs.php' - remove trailing whitespace - fix other whitespace errors flagged by Git - add and/or fix missing or wrong standard headers - convert tabs to spaces in all source files The only relevant code changes are in the fluid/ folder where some .fl files and other source files were used to generate the '$Id' headers and footers.
100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
//
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// Forms free widget routines 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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// Emulation of the Forms "free" widget.
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// This emulation allows the free demo to run, and has allowed
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// me to port several other programs, but it is in no way
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// complete.
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#include <FL/Fl.H>
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#include <FL/Fl_Free.H>
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void Fl_Free::step(void *v) {
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Fl_Free *f = (Fl_Free *)v;
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int old_event = Fl::e_number;
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f->handle(Fl::e_number == FL_STEP);
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Fl::e_number = old_event;
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Fl::add_timeout(.01,step,v);
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}
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/**
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Create a new Fl_Free widget with type, position, size, label and handler.
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\param[in] t type
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\param[in] X, Y, W, H position and size
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\param[in] L widget label
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\param[in] hdl handler function
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The constructor takes both the type and the handle function. The handle
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function should be declared as follows:
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\code
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int handle_function(Fl_Widget *w,
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int event,
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float event_x,
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float event_y,
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char key)
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\endcode
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This function is called from the handle() method in response to most
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events, and is called by the draw() method.
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The event argument contains the event type:
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\code
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// old event names for compatibility:
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#define FL_MOUSE FL_DRAG
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#define FL_DRAW 0
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#define FL_STEP 9
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#define FL_FREEMEM 12
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#define FL_FREEZE FL_UNMAP
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#define FL_THAW FL_MAP
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\endcode
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*/
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Fl_Free::Fl_Free(uchar t,int X, int Y, int W, int H,const char *L,
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FL_HANDLEPTR hdl) :
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Fl_Widget(X,Y,W,H,L) {
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type(t);
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hfunc = hdl;
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if (t == FL_SLEEPING_FREE) set_flag(INACTIVE);
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if (t == FL_CONTINUOUS_FREE || t == FL_ALL_FREE)
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Fl::add_timeout(.01,step,this);
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}
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/**
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The destructor will call the handle function with the event FL_FREE_MEM.
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*/
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Fl_Free::~Fl_Free() {
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Fl::remove_timeout(step,this);
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hfunc(this,FL_FREEMEM,0,0,0);
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}
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void Fl_Free::draw() {hfunc(this,FL_DRAW,0,0,0);}
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int Fl_Free::handle(int e) {
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char key = Fl::event_key();
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switch (e) {
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case FL_FOCUS:
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if (type()!=FL_INPUT_FREE && type()!=FL_ALL_FREE) return 0;
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break;
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case FL_PUSH:
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case FL_DRAG:
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case FL_RELEASE:
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key = 4-Fl::event_button();
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break;
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case FL_SHORTCUT:
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return 0;
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}
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if (hfunc(this, e, float(Fl::event_x()), float(Fl::event_y()), key)) do_callback();
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return 1;
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}
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