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193 lines
6.6 KiB
193 lines
6.6 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at) and *
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* and Patrice Tremblay *
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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 2 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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include "statusbarspaceinfo.h"
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#include <qpainter.h>
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#include <qtimer.h>
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#include <kglobalsettings.h>
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#include <kdiskfreesp.h>
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#include <klocale.h>
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#include <kio/job.h>
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StatusBarSpaceInfo::StatusBarSpaceInfo(QWidget* parent) :
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QWidget(parent),
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m_gettingSize(false),
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m_kBSize(0),
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m_kBAvailable(0)
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{
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setMinimumWidth(200);
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// Update the space information each 10 seconds. Polling is useful
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// here, as files can be deleted/added outside the scope of Dolphin.
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QTimer* timer = new QTimer(this);
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connect(timer, SIGNAL(timeout()), this, SLOT(refresh()));
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timer->start(10000);
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}
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StatusBarSpaceInfo::~StatusBarSpaceInfo()
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{
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}
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void StatusBarSpaceInfo::setURL(const KURL& url)
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{
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m_url = url;
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refresh();
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update();
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}
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void StatusBarSpaceInfo::paintEvent(QPaintEvent* /* event */)
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{
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QPainter painter(this);
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const int barWidth = width();
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const int barTop = 2;
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const int barHeight = height() - 4;
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QString text;
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const int widthDec = 3; // visual decrement for the available width
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const QColor c1 = colorGroup().background();
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const QColor c2 = KGlobalSettings::buttonTextColor();
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const QColor frameColor((c1.red() + c2.red()) / 2,
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(c1.green() + c2.green()) / 2,
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(c1.blue() + c2.blue()) / 2);
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painter.setPen(frameColor);
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const QColor backgrColor = KGlobalSettings::baseColor();
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painter.setBrush(backgrColor);
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painter.drawRect(QRect(0, barTop + 1 , barWidth - widthDec, barHeight));
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if ((m_kBSize > 0) && (m_kBAvailable > 0)) {
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// draw 'used size' bar
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painter.setPen(Qt::NoPen);
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painter.setBrush(progressColor(backgrColor));
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int usedWidth = barWidth - static_cast<int>((m_kBAvailable *
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static_cast<float>(barWidth)) / m_kBSize);
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const int left = 1;
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int right = usedWidth - (widthDec + 1);
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if (right < left) {
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right = left;
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}
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painter.drawRect(QRect(left, barTop + 2, right, barHeight - 2));
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text = i18n("%1 free")
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.arg(KIO::convertSizeFromKB(m_kBAvailable));
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}
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else {
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if (m_gettingSize) {
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text = i18n("Getting size...");
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}
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else {
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text = "";
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QTimer::singleShot(0, this, SLOT(hide()));
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}
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}
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// draw text (usually 'Y GB free')
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painter.setPen(KGlobalSettings::textColor());
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painter.drawText(QRect(1, 1, barWidth - 2, barHeight + 4),
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Qt::AlignHCenter | Qt::AlignVCenter | Qt::WordBreak,
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text);
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}
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void StatusBarSpaceInfo::slotFoundMountPoint(const unsigned long& kBSize,
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const unsigned long& /* kBUsed */,
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const unsigned long& kBAvailable,
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const QString& /* mountPoint */)
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{
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m_gettingSize = false;
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m_kBSize = kBSize;
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m_kBAvailable = kBAvailable;
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// Bypass a the issue (?) of KDiskFreeSp that for protocols like
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// FTP, SMB the size of root partition is returned.
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// TODO: check whether KDiskFreeSp is buggy or Dolphin uses it in a wrong way
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const QString protocol(m_url.protocol());
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if (!protocol.isEmpty() && (protocol != "file")) {
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m_kBSize = 0;
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m_kBAvailable = 0;
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}
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update();
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}
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void StatusBarSpaceInfo::slotDone()
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{
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m_gettingSize = false;
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if ((m_kBSize > 0) && (m_kBAvailable > 0)) {
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show();
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}
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update();
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}
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void StatusBarSpaceInfo::refresh()
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{
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m_gettingSize = true;
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m_kBSize = 0;
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m_kBAvailable = 0;
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const QString mountPoint(KIO::findPathMountPoint(m_url.path()));
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KDiskFreeSp* job = new KDiskFreeSp(this);
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connect(job, SIGNAL(foundMountPoint(const unsigned long&,
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const unsigned long&,
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const unsigned long&,
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const QString& )),
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this, SLOT(slotFoundMountPoint(const unsigned long&,
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const unsigned long&,
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const unsigned long&,
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const QString& )));
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connect(job, SIGNAL(done()),
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this, SLOT(slotDone()));
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job->readDF(mountPoint);
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}
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QColor StatusBarSpaceInfo::progressColor(const QColor& bgColor) const
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{
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QColor color = KGlobalSettings::buttonBackground();
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// assure that enough contrast is given between the background color
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// and the progressbar color
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int bgRed = bgColor.red();
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int bgGreen = bgColor.green();
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int bgBlue = bgColor.blue();
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const int backgrBrightness = qGray(bgRed, bgGreen, bgBlue);
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const int progressBrightness = qGray(color.red(), color.green(), color.blue());
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const int limit = 32;
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const int diff = backgrBrightness - progressBrightness;
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bool adjustColor = ((diff >= 0) && (diff < limit)) ||
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((diff < 0) && (diff > -limit));
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if (adjustColor) {
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const int inc = (backgrBrightness < 2 * limit) ? (2 * limit) : -limit;
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color = QColor(bgRed + inc, bgGreen + inc, bgBlue + inc);
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}
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return color;
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}
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#include "statusbarspaceinfo.moc"
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