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//
// "$Id: Fl_Button.cxx,v 1.4 1999/01/07 19:17:17 mike Exp $"
//
// Button widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-1999 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@easysw.com".
//
#include <FL/Fl.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Group.H>
// There are a lot of subclasses, named Fl_*_Button. Some of
// them are implemented by setting the type() value and testing it
// here. This includes Fl_Radio_Button and Fl_Toggle_Button
int Fl_Button::value(int v) {
v = v ? 1 : 0;
oldval = v;
clear_changed();
if (value_ != v) {value_ = v; redraw(); return 1;}
else return 0;
}
void Fl_Button::setonly() { // set this radio button on, turn others off
value(1);
Fl_Group* g = (Fl_Group*)parent();
Fl_Widget*const* a = g->array();
for (int i = g->children(); i--;) {
Fl_Widget* o = *a++;
if (o != this && o->type()==FL_RADIO_BUTTON) ((Fl_Button*)o)->value(0);
}
}
void Fl_Button::draw() {
if (type() == FL_HIDDEN_BUTTON) return;
Fl_Color col = value() ? selection_color() : color();
//if (col == FL_GRAY && Fl::belowmouse()==this) col = FL_LIGHT1;
draw_box(value() ? (down_box()?down_box():down(box())) : box(), col);
draw_label();
}
int Fl_Button::handle(int event) {
int newval;
switch (event) {
case FL_ENTER:
case FL_LEAVE:
// if ((value_?selection_color():color())==FL_GRAY) redraw();
return 1;
case FL_PUSH:
case FL_DRAG:
if (Fl::event_inside(this)) {
if (type() == FL_RADIO_BUTTON) newval = 1;
else newval = !oldval;
} else
newval = oldval;
if (newval != value_) {
value_ = newval;
redraw();
if (when() & FL_WHEN_CHANGED) do_callback();
}
return 1;
case FL_RELEASE:
if (value_ == oldval) return 1;
if (type() == FL_RADIO_BUTTON)
setonly();
else if (type() == FL_TOGGLE_BUTTON)
oldval = value_;
else {
value(oldval);
if (when() & FL_WHEN_CHANGED) do_callback();
}
if (when() & FL_WHEN_RELEASE) do_callback(); else set_changed();
return 1;
case FL_SHORTCUT:
if (!(shortcut() ?
Fl::test_shortcut(shortcut()) : test_shortcut())) return 0;
if (type() == FL_RADIO_BUTTON && !value_) {
setonly();
if (when() & FL_WHEN_CHANGED) do_callback();
} else if (type() == FL_TOGGLE_BUTTON) {
value(!value());
if (when() & FL_WHEN_CHANGED) do_callback();
}
if (when() & FL_WHEN_RELEASE) do_callback(); else set_changed();
return 1;
default:
return 0;
}
}
Fl_Button::Fl_Button(int x,int y,int w,int h, const char *l)
: Fl_Widget(x,y,w,h,l) {
box(FL_UP_BOX);
down_box(FL_NO_BOX);
value_ = oldval = 0;
shortcut_ = 0;
set_flag(SHORTCUT_LABEL);
}
//
// End of "$Id: Fl_Button.cxx,v 1.4 1999/01/07 19:17:17 mike Exp $".
//
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