mirror of
https://github.com/qbittorrent/qBittorrent.git
synced 2025-01-09 08:37:27 +03:00
1a913c502b
Explicit or implicit calls to begin() and end() cause a non-const
container to detach from shared data, ie. to perform a deep-copy to gain
a unique copy of the data.
That can be a expensive although unneeded operation.
In order to assist the developer a copyAsConst function is added.
copyAsConst returns a const copy of the object.
For lvalues just use qAsConst. It's only available on Qt 5.7.0. But we
added also for earlier versions. The developer can always use qAsConst.
Intended uses:
QString s = ...;
for (const auto &ch : qAsConst(s))
process(ch);
for (const auto &ch : copyAsConst(funcReturningQString()))
process(ch);
301 lines
11 KiB
C++
301 lines
11 KiB
C++
/*
|
|
* Bittorrent Client using Qt and libtorrent.
|
|
* Copyright (C) 2015 Anton Lashkov <lenton_91@mail.ru>
|
|
*
|
|
* 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.
|
|
*
|
|
* In addition, as a special exception, the copyright holders give permission to
|
|
* link this program with the OpenSSL project's "OpenSSL" library (or with
|
|
* modified versions of it that use the same license as the "OpenSSL" library),
|
|
* and distribute the linked executables. You must obey the GNU General Public
|
|
* License in all respects for all of the code used other than "OpenSSL". If you
|
|
* modify file(s), you may extend this exception to your version of the file(s),
|
|
* but you are not obligated to do so. If you do not wish to do so, delete this
|
|
* exception statement from your version.
|
|
*/
|
|
|
|
#include "speedplotview.h"
|
|
|
|
#include <QPainter>
|
|
#include <QPen>
|
|
#include "base/global.h"
|
|
#include "base/utils/misc.h"
|
|
|
|
SpeedPlotView::SpeedPlotView(QWidget *parent)
|
|
: QGraphicsView(parent)
|
|
, m_data5Min(MIN5_BUF_SIZE)
|
|
, m_data30Min(MIN30_BUF_SIZE)
|
|
, m_data6Hour(HOUR6_BUF_SIZE)
|
|
, m_period(MIN5)
|
|
, m_viewablePointsCount(MIN5_SEC)
|
|
, m_counter30Min(-1)
|
|
, m_counter6Hour(-1)
|
|
{
|
|
QPen greenPen;
|
|
greenPen.setWidthF(1.5);
|
|
greenPen.setColor(QColor(134, 196, 63));
|
|
QPen bluePen;
|
|
bluePen.setWidthF(1.5);
|
|
bluePen.setColor(QColor(50, 153, 255));
|
|
|
|
m_properties[UP] = GraphProperties(tr("Total Upload"), bluePen);
|
|
m_properties[DOWN] = GraphProperties(tr("Total Download"), greenPen);
|
|
|
|
bluePen.setStyle(Qt::DashLine);
|
|
greenPen.setStyle(Qt::DashLine);
|
|
m_properties[PAYLOAD_UP] = GraphProperties(tr("Payload Upload"), bluePen);
|
|
m_properties[PAYLOAD_DOWN] = GraphProperties(tr("Payload Download"), greenPen);
|
|
|
|
bluePen.setStyle(Qt::DashDotLine);
|
|
greenPen.setStyle(Qt::DashDotLine);
|
|
m_properties[OVERHEAD_UP] = GraphProperties(tr("Overhead Upload"), bluePen);
|
|
m_properties[OVERHEAD_DOWN] = GraphProperties(tr("Overhead Download"), greenPen);
|
|
|
|
bluePen.setStyle(Qt::DashDotDotLine);
|
|
greenPen.setStyle(Qt::DashDotDotLine);
|
|
m_properties[DHT_UP] = GraphProperties(tr("DHT Upload"), bluePen);
|
|
m_properties[DHT_DOWN] = GraphProperties(tr("DHT Download"), greenPen);
|
|
|
|
bluePen.setStyle(Qt::DotLine);
|
|
greenPen.setStyle(Qt::DotLine);
|
|
m_properties[TRACKER_UP] = GraphProperties(tr("Tracker Upload"), bluePen);
|
|
m_properties[TRACKER_DOWN] = GraphProperties(tr("Tracker Download"), greenPen);
|
|
}
|
|
|
|
void SpeedPlotView::setGraphEnable(GraphID id, bool enable)
|
|
{
|
|
m_properties[id].enable = enable;
|
|
viewport()->update();
|
|
}
|
|
|
|
void SpeedPlotView::pushPoint(SpeedPlotView::PointData point)
|
|
{
|
|
m_counter30Min = (m_counter30Min + 1) % 3;
|
|
m_counter6Hour = (m_counter6Hour + 1) % 18;
|
|
|
|
m_data5Min.push_back(point);
|
|
|
|
if (m_counter30Min == 0) {
|
|
m_data30Min.push_back(point);
|
|
}
|
|
else {
|
|
m_data30Min.back().x = (m_data30Min.back().x * m_counter30Min + point.x) / (m_counter30Min + 1);
|
|
for (int id = UP; id < NB_GRAPHS; ++id)
|
|
m_data30Min.back().y[id] = (m_data30Min.back().y[id] * m_counter30Min + point.y[id]) / (m_counter30Min + 1);
|
|
}
|
|
|
|
if (m_counter6Hour == 0) {
|
|
m_data6Hour.push_back(point);
|
|
}
|
|
else {
|
|
m_data6Hour.back().x = (m_data6Hour.back().x * m_counter6Hour + point.x) / (m_counter6Hour + 1);
|
|
for (int id = UP; id < NB_GRAPHS; ++id)
|
|
m_data6Hour.back().y[id] = (m_data6Hour.back().y[id] * m_counter6Hour + point.y[id]) / (m_counter6Hour + 1);
|
|
}
|
|
}
|
|
|
|
void SpeedPlotView::setViewableLastPoints(TimePeriod period)
|
|
{
|
|
m_period = period;
|
|
|
|
switch (period) {
|
|
case SpeedPlotView::MIN1:
|
|
m_viewablePointsCount = MIN1_SEC;
|
|
break;
|
|
case SpeedPlotView::MIN5:
|
|
m_viewablePointsCount = MIN5_SEC;
|
|
break;
|
|
case SpeedPlotView::MIN30:
|
|
m_viewablePointsCount = MIN30_BUF_SIZE;
|
|
break;
|
|
case SpeedPlotView::HOUR6:
|
|
m_viewablePointsCount = HOUR6_BUF_SIZE;
|
|
break;
|
|
}
|
|
|
|
viewport()->update();
|
|
}
|
|
|
|
void SpeedPlotView::replot()
|
|
{
|
|
if ((m_period == MIN1)
|
|
|| (m_period == MIN5)
|
|
|| ((m_period == MIN30) && (m_counter30Min == 2))
|
|
|| ((m_period == HOUR6) && (m_counter6Hour == 17)))
|
|
viewport()->update();
|
|
}
|
|
|
|
boost::circular_buffer<SpeedPlotView::PointData> &SpeedPlotView::getCurrentData()
|
|
{
|
|
switch (m_period) {
|
|
case SpeedPlotView::MIN1:
|
|
case SpeedPlotView::MIN5:
|
|
default:
|
|
return m_data5Min;
|
|
case SpeedPlotView::MIN30:
|
|
return m_data30Min;
|
|
case SpeedPlotView::HOUR6:
|
|
return m_data6Hour;
|
|
}
|
|
}
|
|
|
|
int SpeedPlotView::maxYValue()
|
|
{
|
|
boost::circular_buffer<PointData> &queue = getCurrentData();
|
|
|
|
int maxYValue = 0;
|
|
for (int id = UP; id < NB_GRAPHS; ++id) {
|
|
|
|
if (!m_properties[static_cast<GraphID>(id)].enable)
|
|
continue;
|
|
|
|
for (int i = int(queue.size()) - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j)
|
|
if (queue[i].y[id] > maxYValue)
|
|
maxYValue = queue[i].y[id];
|
|
}
|
|
|
|
return maxYValue;
|
|
}
|
|
|
|
void SpeedPlotView::paintEvent(QPaintEvent *)
|
|
{
|
|
QPainter painter(viewport());
|
|
|
|
QRect fullRect = viewport()->rect();
|
|
QRect rect = viewport()->rect();
|
|
QFontMetrics fontMetrics = painter.fontMetrics();
|
|
|
|
rect.adjust(4, 4, 0, -4); // Add padding
|
|
|
|
int maxY = maxYValue();
|
|
|
|
rect.adjust(0, fontMetrics.height(), 0, 0); // Add top padding for top speed text
|
|
|
|
// draw Y axis speed labels
|
|
QVector<QString> speedLabels = {
|
|
Utils::Misc::friendlyUnit(maxY, true),
|
|
Utils::Misc::friendlyUnit(0.75 * maxY, true),
|
|
Utils::Misc::friendlyUnit(0.5 * maxY, true),
|
|
Utils::Misc::friendlyUnit(0.25 * maxY, true),
|
|
Utils::Misc::friendlyUnit(0, true)
|
|
};
|
|
|
|
int yAxisWidth = 0;
|
|
for (const QString &label : speedLabels)
|
|
if (fontMetrics.width(label) > yAxisWidth)
|
|
yAxisWidth = fontMetrics.width(label);
|
|
|
|
int i = 0;
|
|
for (const QString &label : speedLabels) {
|
|
QRectF labelRect(rect.topLeft() + QPointF(-yAxisWidth, (i++) * 0.25 * rect.height() - fontMetrics.height()),
|
|
QSizeF(2 * yAxisWidth, fontMetrics.height()));
|
|
painter.drawText(labelRect, label, Qt::AlignRight | Qt::AlignTop);
|
|
}
|
|
|
|
// draw grid lines
|
|
rect.adjust(yAxisWidth + 4, 0, 0, 0);
|
|
|
|
QPen gridPen;
|
|
gridPen.setStyle(Qt::DashLine);
|
|
gridPen.setWidthF(1);
|
|
gridPen.setColor(QColor(128, 128, 128, 128));
|
|
painter.setPen(gridPen);
|
|
|
|
painter.drawLine(fullRect.left(), rect.top(), rect.right(), rect.top());
|
|
painter.drawLine(fullRect.left(), rect.top() + 0.25 * rect.height(), rect.right(), rect.top() + 0.25 * rect.height());
|
|
painter.drawLine(fullRect.left(), rect.top() + 0.50 * rect.height(), rect.right(), rect.top() + 0.50 * rect.height());
|
|
painter.drawLine(fullRect.left(), rect.top() + 0.75 * rect.height(), rect.right(), rect.top() + 0.75 * rect.height());
|
|
painter.drawLine(fullRect.left(), rect.bottom(), rect.right(), rect.bottom());
|
|
|
|
painter.drawLine(rect.left(), fullRect.top(), rect.left(), fullRect.bottom());
|
|
painter.drawLine(rect.left() + 0.2 * rect.width(), fullRect.top(), rect.left() + 0.2 * rect.width(), fullRect.bottom());
|
|
painter.drawLine(rect.left() + 0.4 * rect.width(), fullRect.top(), rect.left() + 0.4 * rect.width(), fullRect.bottom());
|
|
painter.drawLine(rect.left() + 0.6 * rect.width(), fullRect.top(), rect.left() + 0.6 * rect.width(), fullRect.bottom());
|
|
painter.drawLine(rect.left() + 0.8 * rect.width(), fullRect.top(), rect.left() + 0.8 * rect.width(), fullRect.bottom());
|
|
|
|
// Set antialiasing for graphs
|
|
painter.setRenderHints(QPainter::Antialiasing | QPainter::HighQualityAntialiasing);
|
|
|
|
// draw graphs
|
|
rect.adjust(3, 0, 0, 0); // Need, else graphs cross left gridline
|
|
|
|
double yMultiplier = (maxY == 0) ? 0.0 : static_cast<double>(rect.height()) / maxY;
|
|
double xTickSize = static_cast<double>(rect.width()) / m_viewablePointsCount;
|
|
|
|
boost::circular_buffer<PointData> &queue = getCurrentData();
|
|
|
|
for (int id = UP; id < NB_GRAPHS; ++id) {
|
|
if (!m_properties[static_cast<GraphID>(id)].enable)
|
|
continue;
|
|
|
|
QVector<QPoint> points;
|
|
for (int i = int(queue.size()) - 1, j = 0; i >= 0 && j <= m_viewablePointsCount; --i, ++j) {
|
|
|
|
int newX = rect.right() - j * xTickSize;
|
|
int newY = rect.bottom() - queue[i].y[id] * yMultiplier;
|
|
|
|
points.push_back(QPoint(newX, newY));
|
|
}
|
|
|
|
painter.setPen(m_properties[static_cast<GraphID>(id)].pen);
|
|
painter.drawPolyline(points.data(), points.size());
|
|
}
|
|
|
|
// draw legend
|
|
QPoint legendTopLeft(rect.left() + 4, fullRect.top() + 4);
|
|
|
|
double legendHeight = 0;
|
|
int legendWidth = 0;
|
|
for (const auto &property : qAsConst(m_properties)) {
|
|
if (!property.enable)
|
|
continue;
|
|
|
|
if (fontMetrics.width(property.name) > legendWidth)
|
|
legendWidth = fontMetrics.width(property.name);
|
|
legendHeight += 1.5 * fontMetrics.height();
|
|
}
|
|
|
|
QRectF legendBackgroundRect(QPoint(legendTopLeft.x() - 4, legendTopLeft.y() - 4), QSizeF(legendWidth + 8, legendHeight + 8));
|
|
QColor legendBackgroundColor = QWidget::palette().color(QWidget::backgroundRole());
|
|
legendBackgroundColor.setAlpha(128); // 50% transparent
|
|
painter.fillRect(legendBackgroundRect, legendBackgroundColor);
|
|
|
|
i = 0;
|
|
for (const auto &property : qAsConst(m_properties)) {
|
|
if (!property.enable)
|
|
continue;
|
|
|
|
int nameSize = fontMetrics.width(property.name);
|
|
double indent = 1.5 * (i++) * fontMetrics.height();
|
|
|
|
painter.setPen(property.pen);
|
|
painter.drawLine(legendTopLeft + QPointF(0, indent + fontMetrics.height()),
|
|
legendTopLeft + QPointF(nameSize, indent + fontMetrics.height()));
|
|
painter.drawText(QRectF(legendTopLeft + QPointF(0, indent), QSizeF(2 * nameSize, fontMetrics.height())),
|
|
property.name, QTextOption(Qt::AlignVCenter));
|
|
}
|
|
}
|
|
|
|
SpeedPlotView::GraphProperties::GraphProperties()
|
|
: enable(false)
|
|
{
|
|
}
|
|
|
|
SpeedPlotView::GraphProperties::GraphProperties(const QString &name, const QPen &pen, bool enable)
|
|
: name(name)
|
|
, pen(pen)
|
|
, enable(enable)
|
|
{
|
|
}
|