forked from openkylin/quarkai
206 lines
7.7 KiB
C++
206 lines
7.7 KiB
C++
#include "memorycircle.h"
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#include "util.h"
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#include <QDebug>
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#include <QObject>
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inline QString formatMemory(guint64 size)
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{
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enum {
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K_INDEX,
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M_INDEX,
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G_INDEX,
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T_INDEX
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};
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QList<guint64> factorList;
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factorList.append(G_GUINT64_CONSTANT(1) << 10);//KiB
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factorList.append(G_GUINT64_CONSTANT(1) << 20);//MiB
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factorList.append(G_GUINT64_CONSTANT(1) << 30);//GiB
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factorList.append(G_GUINT64_CONSTANT(1) << 40);//TiB
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if (size < factorList.at(K_INDEX)) {
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if ((guint) size > 1) {
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return QString("%1 %2").arg((guint) size).arg(QObject::tr("byte"));
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}
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else {
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return QString("%1 %2").arg((guint) size).arg(QObject::tr("bytes"));
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}
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} else {
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guint64 factor;
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QString format;
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if (size < factorList.at(M_INDEX)) {
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factor = factorList.at(K_INDEX);
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format = QObject::tr("KiB");
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}else if (size < factorList.at(G_INDEX)) {
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factor = factorList.at(M_INDEX);
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format = QObject::tr("MiB");
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} else if (size < factorList.at(T_INDEX)) {
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factor = factorList.at(G_INDEX);
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format = QObject::tr("GiB");
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} else {
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factor = factorList.at(T_INDEX);
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format = QObject::tr("TiB");
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}
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std::string formatted_result(make_string(g_strdup_printf("%.1f", size / (double)factor)));
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return QString::fromStdString(formatted_result) + format;
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}
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}
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MemoryCircle::MemoryCircle(QWidget *parent)
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: QWidget(parent)
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{
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this->setFixedSize(400, 300);
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circleRadius = 128/2; //半径
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rectWidth = 100; //文本框宽
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rectHeight = 20; // 文本框高
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center = rect().center();
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center.setX(center.x()/2);
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center.setY(center.y()/2);
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swapcenter = rect().center();
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swapcenter.setX(swapcenter.x()*3/2);
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swapcenter.setY(swapcenter.y()/2);
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}
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MemoryCircle::~MemoryCircle()
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{
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}
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void MemoryCircle::drawCircle(QPainter &painter, bool isSwap)
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{
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//渐变效果设置
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/*QRadialGradient circleGradient(center, circleRadius, center);
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circleGradient.setColorAt(0.0, QColor(220, 220, 220));
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circleGradient.setColorAt(0.2, QColor(220, 220, 220));
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circleGradient.setColorAt(0.4, QColor(240, 240, 240));
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circleGradient.setColorAt(1.0, QColor(220, 220, 220));*/
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QPen pen;
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if (isSwap)
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pen.setColor(QColor("#fc7416"));
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else
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pen.setColor(QColor("#9528b4"));
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pen.setWidth(1);
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painter.setPen(pen);
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// painter.setBrush(circleGradient);
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painter.setBrush(QBrush(QColor("#ffffff")));
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if (isSwap)
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painter.drawEllipse(swapcenter, circleRadius, circleRadius);
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else
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painter.drawEllipse(center, circleRadius, circleRadius);
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}
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void MemoryCircle::drawColorPie(QPainter &painter, bool isSwap)
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{
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//内存矩形，绘制扇形需要的参数，圆在矩形内且与矩形相切
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QPointF pieRectLeftTop(center.x()-circleRadius, center.y()-circleRadius);
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QPointF pieRectRightBottom(center.x()+circleRadius, center.y()+circleRadius);
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pieRect = QRectF(pieRectLeftTop, pieRectRightBottom);
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//SWAP矩形范围，，绘制扇形需要的参数，圆在矩形内且与矩形相切
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QPointF swapRectLeftTop(swapcenter.x()-circleRadius, swapcenter.y()-circleRadius);
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QPointF swapRectRightBottom(swapcenter.x()+circleRadius, swapcenter.y()+circleRadius);
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swappieRect = QRectF(swapRectLeftTop, swapRectRightBottom);
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if (isSwap) {
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if (mi.swappercent == 0)
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painter.setPen(Qt::NoPen);
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else {
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QPen pen;
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pen.setColor(QColor("#fc7416"));
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pen.setWidth(1);
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painter.setPen(pen);
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}
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painter.setBrush(QBrush(QColor("#fef5f1")));
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float swapcurrentPie = - (360 * (mi.swappercent/100)); //负数顺时针
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painter.drawPie(swappieRect, 90*16, swapcurrentPie*16);//绘制扇形，90*16为初始，12点钟位置
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}
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else {
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if (mi.percent == 0)
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painter.setPen(Qt::NoPen);
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else {
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QPen pen;
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pen.setColor(QColor("#9528b4"));
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pen.setWidth(1);
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painter.setPen(pen);
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}
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painter.setBrush(QBrush(QColor("#f4e9f7")));
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float currentPie = - (360 * (mi.percent/100)); //负数顺时针，0*16为3点钟位置
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painter.drawPie(pieRect, 90*16, currentPie*16); //绘制扇形，90*16为初始，12点钟位置
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}
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}
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void MemoryCircle::drawTextInfo(QPainter &painter)
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{
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setFontSize(painter, 20);
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painter.setPen(QPen(QColor("#000000")));
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painter.drawText(QRect(center.x()-circleRadius, center.y() + circleRadius + 10, circleRadius*2, 30), Qt::AlignCenter, tr("Memory"));
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painter.drawText(QRect(swapcenter.x()-circleRadius, swapcenter.y() + circleRadius + 10, circleRadius*2, 30), Qt::AlignCenter, tr("Swap"));
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//draw title
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setFontSize(painter, 12);
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painter.setPen(QPen(QColor("#999999")));
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painter.drawText(QRect(center.x()-circleRadius, center.y() + circleRadius + 40, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, tr("Used(Percent)"));
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painter.drawText(QRect(swapcenter.x()-circleRadius, swapcenter.y() + circleRadius + 40, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, tr("Used(Percent)"));
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painter.drawText(QRect(center.x()-circleRadius, center.y() + circleRadius + 100, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, tr("Total"));
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painter.drawText(QRect(swapcenter.x()-circleRadius, swapcenter.y() + circleRadius + 100, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, tr("Total"));
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//draw text data
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setFontSize(painter, 20);
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QFontMetrics fm = painter.fontMetrics();
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painter.setPen(QPen(QColor("#000000")));
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const QString memeryUsed = tr("%1(%2%)").arg(formatMemory(mi.user)).arg(QString::number(mi.percent, 'f', 1));
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const QString swapUsed = tr("%1(%2%)").arg(formatMemory(mi.swapused)).arg(QString::number(mi.swappercent, 'f', 1));
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painter.drawText(QRect(center.x()-circleRadius, center.y() + circleRadius + 70, fm.width(memeryUsed), 30), Qt::AlignLeft |Qt::AlignVCenter, memeryUsed);
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painter.drawText(QRect(swapcenter.x()-circleRadius, swapcenter.y() + circleRadius + 70, fm.width(swapUsed), 30), Qt::AlignLeft |Qt::AlignVCenter, swapUsed);
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painter.drawText(QRect(center.x()-circleRadius, center.y() + circleRadius + 130, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, formatMemory(mi.total));
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painter.drawText(QRect(swapcenter.x()-circleRadius, swapcenter.y() + circleRadius + 130, circleRadius*2, 30), Qt::AlignLeft |Qt::AlignVCenter, formatMemory(mi.swaptotal));
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}
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void MemoryCircle::onUpdateMemoryStatus()
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{
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glibtop_mem mem;
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glibtop_swap swap;
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glibtop_get_mem(&mem);
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glibtop_get_swap(&swap);
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float swappercent = (swap.total ? (float)swap.used / (float)swap.total : 0.0f);
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float mempercent = (float)mem.user / (float)mem.total;
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mi.percent = mempercent * 100;
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mi.swappercent = swappercent * 100;
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//初始单位为字节，需要修正
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mi.user = mem.user;
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mi.total = mem.total;
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mi.swapused = swap.used;
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mi.swaptotal = swap.total;
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const QString info = QString("%1/%2(%3%)").arg(formatMemory(mi.user)).arg(formatMemory(mi.total)).arg(QString::number(mi.percent, 'f', 1));
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emit rebackMemoryInfo(info, mi.percent);
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repaint();//this->update();
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}
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void MemoryCircle::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, true);//反走样,绘制出来的线条会出现锯齿
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//draw memory circle
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drawCircle(painter);
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drawColorPie(painter);
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//draw swap circle
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drawCircle(painter, true);
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drawColorPie(painter, true);
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painter.setRenderHint(QPainter::Antialiasing, false);
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drawTextInfo(painter);
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}
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