~ubuntu-branches/ubuntu/vivid/soundscaperenderer/vivid

/******************************************************************************

 * Copyright © 2012-2014 Institut für Nachrichtentechnik, Universität Rostock *

 * Copyright © 2006-2012 Quality & Usability Lab,                             *

 *                       Telekom Innovation Laboratories, TU Berlin           *

 *                                                                            *

 * This file is part of the SoundScape Renderer (SSR).                        *

 *                                                                            *

 * The SSR 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.                                                         *

 *                                                                            *

 * The SSR 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/>.            *

 *                                                                            *

 * The SSR is a tool  for  real-time  spatial audio reproduction  providing a *

 * variety of rendering algorithms.                                           *

 *                                                                            *

 * http://spatialaudio.net/ssr                           ssr@spatialaudio.net *

 ******************************************************************************/

 

/// @file

/// TODO: add description

 

#include <QPainter>

#include <QTimer>

#include <algorithm>

 

#include "qcpulabel.h"

 

QCPULabel::QCPULabel(QWidget* parent, unsigned int update_interval)

  : QLabel(parent), load(0.0f)

{

  setAlignment(Qt::AlignCenter);

 

  // update widget every update_interval msec

  QTimer *timer = new QTimer(this);

  connect(timer, SIGNAL(timeout()), this, SLOT(update()));

  timer->start(update_interval);

}

 

void QCPULabel::set_load(float l)

{

  load = l;

 

  // limit possible values

  load = std::min(load, 100.0f);

  load = std::max(load, 0.0f);

 

  //  update();

}

 

void QCPULabel::paintEvent(QPaintEvent * event)

{

  event->accept();

 

  // draw QLabel stuff

  QLabel::paintEvent(event);

 

  QPainter painter(this);

 

  // frame

  painter.setPen(QPen(QColor(237,237,230),1));

 

  painter.drawLine(QLine(0,0,width(),0));

  painter.drawLine(QLine(0,height()-1,width(),height()-1));

  painter.drawLine(QLine(0,0,0,height()));

  painter.drawLine(QLine(width()-1,0,width()-1,height()-1));

 

  // choose colors

  if (load <= 60.0f){

    painter.setPen(QPen(QColor(58,239,58)));

    painter.setBrush(QBrush(QColor(58,239,58))); // green

  }

  else if (load > 80.0f){

    painter.setPen(QPen(QColor(255,0,0)));

    painter.setBrush(QBrush(QColor(255,0,0))); // red // TODO: rgb

  }

  else {

    painter.setPen(QPen(QColor(255,255,0)));

    painter.setBrush(QBrush(QColor(255,255,0))); // yellow // TODO: rgb

  }

 

  // draw load bar

  painter.drawRect(1, 1, (int)(width()*load/100.0f)-1, height()-3);

 

  // set text

  //setText(QString().setNum((int)(load + 0.5f)));

 

  // quick-hack

  painter.setPen(QPen(QColor(0, 0, 0))); 

  painter.drawText(QRect(0, 1, width(), height()), Qt::AlignCenter, QString().setNum((int)(load + 0.5f)));

 

}

 

// Settings for Vim (http://www.vim.org/), please do not remove:

// vim:softtabstop=2:shiftwidth=2:expandtab:textwidth=80:cindent

// vim:fdm=expr:foldexpr=getline(v\:lnum)=~'/\\*\\*'&&getline(v\:lnum)!~'\\*\\*/'?'a1'\:getline(v\:lnum)=~'\\*\\*/'&&getline(v\:lnum)!~'/\\*\\*'?'s1'\:'='