[seiscomp, scanloc] Install, add .gitignore
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include/seiscomp/gui/plot/graph.h
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232
include/seiscomp/gui/plot/graph.h
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/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_GUI_PLOT_ABSTRACTGRAPH_H
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#define SEISCOMP_GUI_PLOT_ABSTRACTGRAPH_H
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#include <seiscomp/gui/plot/axis.h>
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#include <seiscomp/gui/plot/abstractdataset.h>
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#include <QObject>
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#include <QColor>
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#include <QPolygonF>
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namespace Seiscomp {
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namespace Gui {
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class AbstractDataSet;
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class SC_GUI_API Graph : public QObject {
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// ----------------------------------------------------------------------
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// X'truction
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// ----------------------------------------------------------------------
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public:
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//! C'tor
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explicit Graph(Axis *keyAxis, Axis *valueAxis, QObject *parent=0);
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explicit Graph(const QString &name, Axis *keyAxis, Axis *valueAxis, QObject *parent=0);
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// ----------------------------------------------------------------------
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// Meta data
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// ----------------------------------------------------------------------
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public:
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void setName(const QString &name);
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const QString &name() const;
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// ----------------------------------------------------------------------
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// Setup
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// ----------------------------------------------------------------------
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public:
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/**
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* @brief Sets the pen used to draw the graph
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* @param p The pen
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*/
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void setPen(const QPen &p);
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const QPen &pen() const;
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/**
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* @brief Sets the primary (line) color of the graph.
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* @param c The color
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*/
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void setColor(QColor c);
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QColor color() const;
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/**
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* @brief Sets the line width of the graph.
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* @param lw The line width in pixels
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*/
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void setLineWidth(int lw);
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int lineWidth() const;
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/**
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* @brief Sets whether anti aliasing should be enabled or not.
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* @param e Flag
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*/
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void setAntiAliasing(bool e);
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bool antiAliasing() const;
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/**
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* @brief Sets whether to drop a show in the plot or not for this graph
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* @param e Flag
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*/
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void setDropShadow(bool e);
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bool dropShadow() const;
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// ----------------------------------------------------------------------
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// Query interface
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// ----------------------------------------------------------------------
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public:
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Axis *keyAxis() const;
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Axis *valueAxis() const;
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void setData(AbstractDataSet *data);
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AbstractDataSet *data() const;
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bool isEmpty() const { return count() == 0; }
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int count() const;
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Range getXRange() const;
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Range getYRange() const;
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void getBounds(Range &x, Range &y) const;
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/**
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* @brief Convenience function that returns a QRectF instead of two
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* single ranges.
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* @return The bounding rectangle of the graph data
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*/
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QRectF getBounds() const;
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// ----------------------------------------------------------------------
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// Data interface
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// ----------------------------------------------------------------------
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public:
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void setVisible(bool visible);
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bool isVisible() const { return _visible; }
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void clear();
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/**
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* @brief Unprojects the data from axis space to pixel space
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* @param poly The target polygon that holds the projected and possibly
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* clipped data. Note that the number of points in the
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* polygon does not necessarily match the number of points
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* in the graph due to clipping.
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*/
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virtual void unproject(QPolygonF &poly) const;
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// ----------------------------------------------------------------------
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// Render interface
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// ----------------------------------------------------------------------
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public:
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/**
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* @brief Draws the graph. The default implementation projects the
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* associated dataset to screen coordinates and renders a
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* polyline with the configured pen and style.
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*
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* Derived classes can reimplement this method to do custom drawing.
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* Note that screen space projection must be inverted to accomodate
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* for top-down coordinate system. The plot sets up the correct
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* clipping and translation before calling this method.
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*
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* @param p The painter
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*/
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virtual void draw(QPainter &p);
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/**
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* @brief Draws a symbol to represent the graph. This is used by e.g.
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* legends. The default implementation draws a horizontal line
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* with the configured pen. The line is vertically centered in
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* the target rectangle.
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* @param p The painter
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* @param r The target rect
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*/
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virtual void drawSymbol(QPainter &p, const QRect &r);
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// ----------------------------------------------------------------------
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// Protected members
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// ----------------------------------------------------------------------
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protected:
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// Meta data
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QString _name;
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// Context
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Axis *_keyAxis;
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Axis *_valueAxis;
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AbstractDataSet *_data;
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// Setup
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bool _visible;
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QPen _pen;
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bool _antiAliasing;
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bool _dropShadow;
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};
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inline const QString &Graph::name() const {
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return _name;
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}
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inline Axis *Graph::keyAxis() const {
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return _keyAxis;
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}
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inline Axis *Graph::valueAxis() const {
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return _valueAxis;
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}
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inline void Graph::setData(AbstractDataSet *data) {
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_data = data;
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}
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inline AbstractDataSet *Graph::data() const {
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return _data;
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}
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inline int Graph::count() const {
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return _data != nullptr ? _data->count() : 0;
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}
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inline Range Graph::getXRange() const {
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return _data != nullptr ? _data->getXRange() : Range();
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}
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inline Range Graph::getYRange() const {
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return _data != nullptr ? _data->getYRange() : Range();
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}
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inline void Graph::clear() {
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if ( _data != nullptr ) _data->clear();
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}
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}
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}
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#endif
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