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// fltkcomplexbutton.cc is derived from src/Fl_Button.cxx from FLTK's 1.3
// branch at http://fltk.org in early 2011.
// src/Fl_Button.cxx is Copyright 1998-2010 by Bill Spitzak and others.
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <FL/Fl.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Window.H>
#include "fltkcomplexbutton.hh"
using namespace dw::fltk::ui;
/**
Sets the current value of the button.
A non-zero value sets the button to 1 (ON), and zero sets it to 0 (OFF).
\param[in] v button value.
*/
int ComplexButton::value(int v) {
v = v ? 1 : 0;
oldval = v;
clear_changed();
if (value_ != v) {
value_ = v;
if (box()) redraw();
return 1;
} else {
return 0;
}
}
void ComplexButton::draw() {
Fl_Color col = value() ? selection_color() : color();
draw_box(value() ? (down_box()?down_box():fl_down(box())) : box(), col);
if (Fl::focus() == this) draw_focus();
// ComplexButton is a Group; draw its children
for (int i = children () - 1; i >= 0; i--) {
// set absolute coordinates for fltk-1.3 --jcid
child (i)->position(x()+(w()-child(i)->w())/2,y()+(h()-child(i)->h())/2);
draw_child (*child (i));
}
}
int ComplexButton::handle(int event) {
int newval;
switch (event) {
case FL_ENTER: /* FALLTHROUGH */
case FL_LEAVE:
return 1;
case FL_PUSH:
if (Fl::visible_focus() && handle(FL_FOCUS)) Fl::focus(this);
case FL_DRAG:
if (Fl::event_inside(this)) {
newval = !oldval;
} else
{
clear_changed();
newval = oldval;
}
if (newval != value_) {
value_ = newval;
set_changed();
redraw();
if (when() & FL_WHEN_CHANGED) do_callback();
}
return 1;
case FL_RELEASE:
if (value_ == oldval) {
if (when() & FL_WHEN_NOT_CHANGED) do_callback();
return 1;
}
set_changed();
value(oldval);
set_changed();
if (when() & FL_WHEN_CHANGED) {
Fl_Widget_Tracker wp(this);
do_callback();
if (wp.deleted()) return 1;
}
if (when() & FL_WHEN_RELEASE) do_callback();
return 1;
case FL_FOCUS : /* FALLTHROUGH */
case FL_UNFOCUS :
if (Fl::visible_focus()) {
if (box() == FL_NO_BOX) {
// Widgets with the FL_NO_BOX boxtype need a parent to
// redraw, since it is responsible for redrawing the
// background...
int X = x() > 0 ? x() - 1 : 0;
int Y = y() > 0 ? y() - 1 : 0;
if (window()) window()->damage(FL_DAMAGE_ALL, X, Y, w() + 2, h() + 2);
} else redraw();
return 1;
} else return 0;
case FL_KEYBOARD :
if (Fl::focus() == this &&
(Fl::event_key() == ' ' || Fl::event_key() == FL_Enter) &&
!(Fl::event_state() & (FL_SHIFT | FL_CTRL | FL_ALT | FL_META))) {
set_changed();
Fl_Widget_Tracker wp(this);
if (wp.deleted()) return 1;
if (when() & FL_WHEN_RELEASE) do_callback();
return 1;
}
default:
return 0;
}
}
/**
The constructor creates the button using the given position, size and label.
\param[in] X, Y, W, H position and size of the widget
\param[in] L widget label, default is no label
*/
ComplexButton::ComplexButton(int X, int Y, int W, int H, const char *L)
: Fl_Group(X,Y,W,H,L) {
Fl_Group::current(0);
box(FL_UP_BOX);
down_box(FL_NO_BOX);
value_ = oldval = 0;
}
ComplexButton::~ComplexButton() {
/*
* The Fl_Group destructor clear()s the children, but layout expects
* the flat view to be around until it deletes it.
*/
remove(0);
}
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