/*************************************************************************** * Copyright (C) 2008,2010 by Volker Lanz * * * * This program 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. * * * * This program 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, write to the * * Free Software Foundation, Inc., * * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * ***************************************************************************/ #include "gui/partwidget.h" #include "util/capacity.h" #include "core/partition.h" #include "fs/filesystem.h" #include #include #include #include #include /** Creates a new PartWidget @param parent pointer to the parent widget @param p pointer to the Partition this widget will show. must not be NULL. */ PartWidget::PartWidget(QWidget* parent, const Partition* p) : PartWidgetBase(parent), m_Partition(NULL), m_Active(false) { setFont(QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont)); // Check if user is running a GTK style; in that case, use plastique as a fallback // style for the PartWidget to work around GTK styles not showing the FS colors // correctly. // Inspired by Aurélien Gâteau's similar workaround in Gwenview (230aebbd) //FIXME: port KF5. Is this still necessary? /*if (qstrcmp(QApplication::style()->metaObject()->className(), "QGtkStyle") == 0) { QStyle* style = new QPlastiqueStyle(); style->setParent(this); setStyle(style); }*/ init(p); } void PartWidget::init(const Partition* p) { m_Partition = p; if (partition()) setToolTip(partition()->deviceNode() + '\n' + partition()->fileSystem().name() + ' ' + Capacity::formatByteSize(partition()->capacity())); else setToolTip(QString()); updateChildren(); } /** Updates the widget's children */ void PartWidget::updateChildren() { if (partition()) { foreach (QWidget* w, childWidgets()) { w->setVisible(false); w->deleteLater(); w->setParent(NULL); } foreach(const Partition* child, partition()->children()) { QWidget* w = new PartWidget(this, child); w->setVisible(true); } positionChildren(this, partition()->children(), childWidgets()); } } void PartWidget::resizeEvent(QResizeEvent*) { if (partition()) positionChildren(this, partition()->children(), childWidgets()); } QColor PartWidget::activeColor(const QColor& col) const { return isActive() ? col.darker(190) : col; } void PartWidget::paintEvent(QPaintEvent*) { if (partition() == NULL) return; const int usedPercentage = partition()->used() * 100 / partition()->capacity(); const int w = width() * usedPercentage / 100; QPainter painter(this); painter.setRenderHints(QPainter::Antialiasing); if (partition()->roles().has(PartitionRole::Extended)) { drawGradient(&painter, activeColor(Config::fileSystemColorCode(partition()->fileSystem().type())), QRect(0, 0, width(), height())); return; } const QColor base = activeColor(Config::fileSystemColorCode(partition()->fileSystem().type())); if (!partition()->roles().has(PartitionRole::Unallocated)) { const QColor dark = base.darker(105); const QColor light = base.lighter(120); // draw free space background drawGradient(&painter, light, QRect(0, 0, width(), height()), isActive()); // draw used space in front of that drawGradient(&painter, dark, QRect(0, 0, w, height() - 1)); } else drawGradient(&painter, base, QRect(0, 0, width(), height()), isActive()); // draw name and size QString text = partition()->deviceNode().remove("/dev/") + '\n' + Capacity::formatByteSize(partition()->capacity()); const QRect textRect(0, 0, width() - 1, height() - 1); const QRect boundingRect = painter.boundingRect(textRect, Qt::AlignVCenter | Qt::AlignHCenter, text); if (boundingRect.x() > PartWidgetBase::borderWidth() && boundingRect.y() > PartWidgetBase::borderHeight()) { if (isActive()) painter.setPen(QColor(255, 255, 255)); painter.drawText(textRect, Qt::AlignVCenter | Qt::AlignHCenter, text); } } void PartWidget::drawGradient(QPainter* painter, const QColor& color, const QRect& rect, bool active) const { if (rect.width() < 8) return; QStyleOptionButton option; option.initFrom(this); option.rect = rect; option.palette.setColor(QPalette::Button, color); option.palette.setColor(QPalette::Window, color); option.state |= QStyle::State_Raised; if (!active) option.state &= ~QStyle::State_MouseOver; else option.state |= QStyle::State_MouseOver; style()->drawControl(QStyle::CE_PushButtonBevel, &option, painter, this); }