147 lines
4.5 KiB
C++
147 lines
4.5 KiB
C++
/*
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SPDX-FileCopyrightText: 2008-2010 Volker Lanz <vl@fidra.de>
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SPDX-FileCopyrightText: 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
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SPDX-FileCopyrightText: 2012-2020 Andrius Štikonas <andrius@stikonas.eu
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SPDX-FileCopyrightText: 2015 Teo Mrnjavac <teo@kde.org>
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SPDX-FileCopyrightText: 2020 David Faure <faure@kde.org>
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SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "gui/partwidget.h"
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#include "core/partition.h"
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#include "fs/filesystem.h"
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#include "util/capacity.h"
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#include <QApplication>
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#include <QFontDatabase>
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#include <QPainter>
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#include <QStyleOptionButton>
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/** Creates a new PartWidget
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@param parent pointer to the parent widget
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@param p pointer to the Partition this widget will show. must not be nullptr.
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*/
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PartWidget::PartWidget(QWidget* parent, Partition* p) :
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PartWidgetBase(parent),
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m_Partition(nullptr),
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m_Active(false)
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{
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setFont(QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont));
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init(p);
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m_fileSystemColorCode = FileSystem::defaultColorCode;
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}
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void PartWidget::init(Partition* p)
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{
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m_Partition = p;
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if (partition())
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setToolTip(partition()->deviceNode() + QStringLiteral("\n") + partition()->fileSystem().name() + QStringLiteral(" ") + QString(Capacity::formatByteSize(partition()->capacity())));
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else
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setToolTip(QString());
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updateChildren();
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}
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/** Updates the widget's children */
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void PartWidget::updateChildren()
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{
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if (partition()) {
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for (const auto &w : childWidgets()) {
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w->setVisible(false);
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w->deleteLater();
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w->setParent(nullptr);
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}
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for (const auto &child : partition()->children()) {
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QWidget* w = new PartWidget(this, child);
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w->setVisible(true);
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}
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positionChildren(this, partition()->children(), childWidgets());
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}
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}
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void PartWidget::setFileSystemColorCode(const std::vector<QColor>& colorCode)
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{
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m_fileSystemColorCode = colorCode;
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repaint();
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}
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void PartWidget::resizeEvent(QResizeEvent*)
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{
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if (partition())
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positionChildren(this, partition()->children(), childWidgets());
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}
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QColor PartWidget::activeColor(const QColor& col) const
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{
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return isActive() ? col.darker(190) : col;
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}
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void PartWidget::paintEvent(QPaintEvent*)
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{
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if (partition() == nullptr)
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return;
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auto partitionCapacity = partition()->capacity();
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if (partitionCapacity <= 0)
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return;
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const int usedPercentage = static_cast<int>(partition()->used() * 100 / partitionCapacity);
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const int w = width() * usedPercentage / 100;
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QPainter painter(this);
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painter.setRenderHints(QPainter::Antialiasing);
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const QColor base = activeColor(m_fileSystemColorCode[ static_cast<int>(partition()->fileSystem().type()) ]);
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if (partition()->roles().has(PartitionRole::Extended)) {
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drawGradient(&painter, base, QRect(0, 0, width(), height()));
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return;
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}
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if (!partition()->roles().has(PartitionRole::Unallocated)) {
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const QColor dark = base.darker(105);
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const QColor light = base.lighter(120);
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// draw free space background
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drawGradient(&painter, light, QRect(0, 0, width(), height()), isActive());
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// draw used space in front of that
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drawGradient(&painter, dark, QRect(0, 0, w, height() - 1));
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} else
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drawGradient(&painter, base, QRect(0, 0, width(), height()), isActive());
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// draw name and size
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QString text = partition()->deviceNode().remove(QStringLiteral("/dev/")) + QStringLiteral("\n") + QString(Capacity::formatByteSize(partition()->capacity()));
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const QRect textRect(0, 0, width() - 1, height() - 1);
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const QRect boundingRect = painter.boundingRect(textRect, Qt::AlignCenter, text);
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if (boundingRect.x() > PartWidgetBase::borderWidth() && boundingRect.y() > PartWidgetBase::borderHeight()) {
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if (isActive())
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painter.setPen(Qt::white);
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painter.drawText(textRect, Qt::AlignCenter, text);
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}
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}
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void PartWidget::drawGradient(QPainter* painter, const QColor& color, const QRect& rect, bool active) const
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{
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if (rect.width() < 8)
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return;
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QStyleOptionButton option;
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option.initFrom(this);
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option.rect = rect;
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option.palette.setColor(QPalette::Button, color);
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option.palette.setColor(QPalette::Window, color);
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option.state |= QStyle::State_Raised;
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if (!active)
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option.state &= ~QStyle::State_MouseOver;
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else
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option.state |= QStyle::State_MouseOver;
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style()->drawControl(QStyle::CE_PushButtonBevel, &option, painter, this);
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}
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