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be5872e772
https://github.com/linuxdeepin/internal-discussion/issues/1074 Change-Id: I25c4a52b87de2ef4ff0ce942dd298ac3c8e06f7a
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
#include "informationwidget.h"
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#include <QVBoxLayout>
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#include <QTimer>
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#include <QDebug>
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InformationWidget::InformationWidget(QWidget *parent)
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: QWidget(parent)
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, m_infoLabel(new QLabel)
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, m_refreshTimer(new QTimer(this))
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// 使用 "/home" 初始化 QStorageInfo
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// 如果 "/home" 没有挂载到一个单独的分区上，QStorageInfo 收集的数据将会是根分区的
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, m_storageInfo(new QStorageInfo("/home"))
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{
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m_infoLabel->setStyleSheet("QLabel {"
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"color: white;"
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"}");
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m_infoLabel->setAlignment(Qt::AlignCenter);
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QVBoxLayout *centralLayout = new QVBoxLayout;
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centralLayout->addWidget(m_infoLabel);
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centralLayout->setSpacing(0);
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centralLayout->setMargin(0);
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setLayout(centralLayout);
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// 连接 Timer 超时的信号到更新数据的槽上
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connect(m_refreshTimer, &QTimer::timeout, this, &InformationWidget::refreshInfo);
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// 设置 Timer 超时为 10s，即每 10s 更新一次控件上的数据，并启动这个定时器
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m_refreshTimer->start(10000);
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refreshInfo();
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}
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void InformationWidget::refreshInfo()
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{
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// 获取分区总容量
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const double total = m_storageInfo->bytesTotal();
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// 获取可用总容量
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const double available = m_storageInfo->bytesAvailable();
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// 得到可用百分比
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const int percent = qRound(available / total * 100);
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// 更新内容
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m_infoLabel->setText(QString("Home:\n%1\%").arg(percent));
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}
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