File indexing completed on 2024-04-21 15:12:14

 /* This file is part of the KDE Project
    Copyright (C) 2000 Klaas Freitag <freitag@suse.de>
 
    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; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "sizeindicator.h"
 
 #include <qpainter.h>
 #include <qevent.h>
 #include <QLinearGradient>
 
 #include <klocalizedstring.h>
 #include <kcolorscheme.h>
 #include <kformat.h>
 
 #include "libkookascan_logging.h"
 
 
 SizeIndicator::SizeIndicator(QWidget *parent, long thresh, long crit)
     : QLabel(parent)
 {
     setFrameStyle(QFrame::Box | QFrame::Sunken);
     setMinimumWidth(fontMetrics().horizontalAdvance("MMMM.MM MiB"));
 
     mThreshold = thresh;
     mCritical = crit;
     mSizeInByte = -1;
 }
 
 SizeIndicator::~SizeIndicator()
 {
 }
 
 void SizeIndicator::setCritical(long crit)
 {
     mCritical = crit;
     if (mSizeInByte >= 0 && isVisible()) {
         update();
     }
 }
 
 void SizeIndicator::setThreshold(long thresh)
 {
     mThreshold = thresh;
     if (mSizeInByte >= 0 && isVisible()) {
         update();
     }
 }
 
 void SizeIndicator::setSizeInByte(long newSize)
 {
     //qCDebug(LIBKOOKASCAN_LOG) << "New size" << newSize << "bytes";
     mSizeInByte = newSize;
 
     if (newSize < 0) {
         setText("");
     } else {
         setText(KFormat().formatByteSize(newSize));
     }
     // TODO: do we want JEDEC units here?
 }
 
 void SizeIndicator::paintEvent(QPaintEvent *ev)
 {
     QFrame::paintEvent(ev);             // draw the frame
 
     QPainter p(this);
 
     const QRect cr = contentsRect();
     p.setClipRect(cr);                  // paint the contents
     int w = cr.width();
     int h = cr.height();
 
     KColorScheme sch(QPalette::Normal, KColorScheme::Button);
 
     QLinearGradient g;
 
     if (mSizeInByte < DEFAULT_SMALL) {
         p.fillRect(0, 0, w, h, sch.background(KColorScheme::PositiveBackground).color());
     } else if (mSizeInByte < mThreshold) {
         int t = w * (1.0 - (double(mSizeInByte - DEFAULT_SMALL) / (mThreshold - DEFAULT_SMALL)));
         g.setStart(t - w / 5, h / 2);
         g.setFinalStop(t + w / 5, h / 2);
         g.setColorAt(0, sch.background(KColorScheme::PositiveBackground).color());
         g.setColorAt(1, sch.background(KColorScheme::NeutralBackground).color());
         p.fillRect(0, 0, w, h, QBrush(g));
     } else if (mSizeInByte < mCritical) {
         int t = w * (1.0 - (double(mSizeInByte - mThreshold) / (mCritical - mThreshold)));
         g.setStart(t - w / 5, h / 2);
         g.setFinalStop(t + w / 5, h / 2);
         g.setColorAt(0, sch.background(KColorScheme::NeutralBackground).color());
         g.setColorAt(1, sch.background(KColorScheme::NegativeBackground).color());
         p.fillRect(0, 0, w, h, QBrush(g));
     } else {
         p.fillRect(0, 0, w, h, sch.background(KColorScheme::NegativeBackground).color());
     }
     // display the text
     p.drawText(0, 0, w, h, Qt::AlignHCenter | Qt::AlignVCenter, text());
 }