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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* collapser.cc
*
* Mon Sep 15 09:48:46 CEST 2008
* Copyright 2008 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of Pracro.
*
* Pracro 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 2 of the License, or
* (at your option) any later version.
*
* Pracro 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 Pracro; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "collapser.h"
#include <QHBoxLayout>
#define ANIM_TIME 250
#define ANIM_INTERVAL 25
Collapser::Collapser(QWidget *collapsed, QWidget *expanded, bool setcollapsed)
{
setLayout(new QHBoxLayout());
layout()->setContentsMargins(0,0,0,0);
this->collapsed = collapsed;
collapsed->show();
c_height = collapsed->height();
collapsed->setVisible(false);
this->expanded = expanded;
expanded->show();
e_height = expanded->height();
expanded->setVisible(false);
collapsed->setVisible(false);
expanded->setVisible(false);
setCollapsed(setcollapsed);
}
bool Collapser::isCollapsed()
{
return is_collapsed;
}
void Collapser::setCollapsed(bool setcollapsed)
{
if(this->is_collapsed == setcollapsed) return;
if(setcollapsed) collapse();
else expand();
}
void Collapser::collapse()
{
t_anim.start();
is_collapsed = true;
timer_id = startTimer(ANIM_INTERVAL);
}
void Collapser::expand()
{
t_anim.start();
// show expanded
collapsed->setVisible(false);
layout()->removeWidget(collapsed);
layout()->addWidget(expanded);
expanded->setVisible(true);
is_collapsed = false;
timer_id = startTimer(ANIM_INTERVAL);
}
void Collapser::toggleCollapse()
{
if(!is_collapsed) collapse();
else expand();
}
void Collapser::anim()
{
killTimer(timer_id);
double x = (double)(t_anim.elapsed()) / ANIM_TIME;
double y = 1;
if(x < 1) {
y = x * x * x;
timer_id = startTimer(ANIM_INTERVAL);
} else {
if(is_collapsed) {
// show collapsed
expanded->setVisible(false);
layout()->removeWidget(expanded);
layout()->addWidget(collapsed);
collapsed->setVisible(true);
}
}
if(!is_collapsed) {
setFixedHeight((1 - y) * c_height + y * e_height);
} else {
setFixedHeight((1 - y) * e_height + y * c_height);
}
}
void Collapser::timerEvent(QTimerEvent *)
{
anim();
}
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