diff options
author | dodoradio <dodoradio@outlook.com> | 2023-08-07 21:25:44 +0100 |
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committer | Arseniy Movshev <dodoradio@outlook.com> | 2023-11-24 17:20:54 +0000 |
commit | 8825bca5587ba07e7462622ba37d125ba17e4969 (patch) | |
tree | d70927c4fbd096cc510d05ed76830ff28efd6add /src/graphs/lineGraph.cpp | |
parent | 298ed17d1450b3590d3702e446c5f61aca9fa6b0 (diff) |
Add barometer graphgraph
This is based mostly on my work from asteroid-health (https://git.dodorad.io/dodoradio/asteroid-health). Some tweaks have been applied on top of this code, which might prove useful in asteroid-health as well.
Diffstat (limited to 'src/graphs/lineGraph.cpp')
-rw-r--r-- | src/graphs/lineGraph.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/graphs/lineGraph.cpp b/src/graphs/lineGraph.cpp new file mode 100644 index 0000000..36171b9 --- /dev/null +++ b/src/graphs/lineGraph.cpp @@ -0,0 +1,140 @@ +/* + * Copyright (C) 2023 Arseniy Movshev <dodoradio@outlook.com> + * 2017 Florent Revest <revestflo@gmail.com> + * All rights reserved. + * + * You may use this file under the terms of BSD license as follows: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the author nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "lineGraph.h" + +#include <QPainter> +#include <QDate> +#include <QFile> +#include <QVector> +#include <QSettings> +#include <QStandardPaths> +#include <QPointF> + +LineGraph::LineGraph() +{ + setFlag(ItemHasContents, true); + setAntialiasing(true); + setRenderTarget(QQuickPaintedItem::FramebufferObject); +} + +void LineGraph::paint(QPainter *painter) +{ + if (m_filedata.count() < 2) { + qDebug() << "not rendering, not enough data"; + return; + } + int j = m_filedata.count(); + QPointF points[j]; + if (!graphRelative) { + minValue = 0; + } + float valueDelta = maxValue - minValue; + float timeDelta = maxTime - minTime; + float calculatedValue = 0; + float calculatedTimeSeconds = 0; + for(int i = 0; i < j; i++) { + calculatedTimeSeconds = (m_filedata[i].x() - minTime)/timeDelta; + calculatedValue = 1 - (m_filedata[i].y() - minValue)/valueDelta; + points[i] = QPointF(m_lineWidth + calculatedTimeSeconds*(width()-2*m_lineWidth), m_lineWidth + calculatedValue*(height()-2*m_lineWidth)); //these +2 -1 are here to make sure that the graph fits within the drawn area, as it will be clipped by qt if it doesn't. + } + QPen pen; + pen.setCapStyle(Qt::RoundCap); + pen.setJoinStyle(Qt::RoundJoin); + pen.setWidthF(m_lineWidth); + pen.setColor(m_color); + painter->setRenderHints(QPainter::Antialiasing); + painter->setPen(pen); + painter->drawPolyline(points,j); +} + +void LineGraph::loadGraphData(QVariant fileDataInput) { + qDebug() << "loadGraphData called"; + QList<QVariant> fileDataAsList = fileDataInput.toList(); + if (fileDataAsList.count() < 1) { + qDebug() << "no heartrate data to show, failing load"; + return; + } + int j = fileDataAsList.count(); + minTime = fileDataAsList[0].toPointF().x(); + maxTime = fileDataAsList[j-1].toPointF().x(); + minValue = fileDataAsList[0].toPointF().y(); + maxValue = minValue; + m_filedata.clear(); + for(int i = 0; i < j; i++) { + m_filedata.append(fileDataAsList[i].toPointF()); + if (minValue > m_filedata[i].y()) minValue = m_filedata[i].y(); + if (maxValue < m_filedata[i].y()) maxValue = m_filedata[i].y(); + } + emit loadingDone(); + update(); +} + +void LineGraph::setLineColor(QColor color) { + m_color = color; + update(); +} + +QColor LineGraph::lineColor() { + return m_color; +} + +void LineGraph::setLineWidth(float width) { + m_lineWidth = width; + update(); +} + +float LineGraph::lineWidth() { + return m_lineWidth; +} + +int LineGraph::getMaxValue() { + return maxValue; +} + +int LineGraph::getMinValue() { + return minValue; +} + +QDateTime LineGraph::getMaxTime() { + return QDateTime::fromSecsSinceEpoch(maxTime); +} + +QDateTime LineGraph::getMinTime() { + return QDateTime::fromSecsSinceEpoch(minTime); +} + +bool LineGraph::relative() { + return graphRelative; +} + +void LineGraph::setRelative(bool newRelative) { + graphRelative = newRelative; +} |