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