mirror of
https://github.com/jkriege2/JKQtPlotter.git
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114 lines
4.6 KiB
C++
114 lines
4.6 KiB
C++
/** \example test_user_interaction.cpp
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* JKQTPlotter: Tutorial: User Interaction in JKQTPlotter
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*
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* \ref JKQTPlotterUserInteraction
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* \see \ref JKQTPLOTTER_USERINTERACTION
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*/
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#include "test_user_interaction.h"
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#include <QMenuBar>
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TestUserInteraction::TestUserInteraction(QWidget *parent) :
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QMainWindow(parent)
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{
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QWidget* w=new QWidget(this);
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setCentralWidget(w);
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// setup layouts for form
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layout=new QGridLayout;
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layForm=new QFormLayout;
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layChk=new QHBoxLayout;
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layout->addLayout(layChk,0,0);
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layout->addLayout(layForm,1,0);
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// generate a JKQTPlotter and initialize some plot data
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plot=new JKQTPlotter(this);
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layout->addWidget(plot,2,0);
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initPlot();
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// add some of the default QActions from the JKQTPlotter to the window menu
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// Some of the are also available in the context menu and toolbar of the JKQTPlotter
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// others are not
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QMenu* menuPlot=menuBar()->addMenu("Plot-Menu");
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menuPlot->addAction(plot->get_plotter()->get_actPrint());
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QMenu* menuPlotS=menuPlot->addMenu("Save ...");
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menuPlotS->addAction(plot->get_plotter()->get_actSaveData());
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menuPlotS->addAction(plot->get_plotter()->get_actSavePDF()); // not available from JKQTPlotter by default
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menuPlotS->addAction(plot->get_plotter()->get_actSavePlot());
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QMenu* menuPlotZ=menuPlot->addMenu("Zoom ...");
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menuPlotZ->addAction(plot->get_plotter()->get_actZoomAll());
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menuPlotZ->addAction(plot->get_plotter()->get_actZoomIn());
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menuPlotZ->addAction(plot->get_plotter()->get_actZoomOut());
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// add a checkbox to show and hide the position display label in the plot
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chkPositionDisplay=new QCheckBox(tr("show mouse cursor position"), this);
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chkPositionDisplay->setChecked(plot->get_displayMousePosition());
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connect(chkPositionDisplay, SIGNAL(toggled(bool)), plot, SLOT(set_displayMousePosition(bool)));
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layChk->addWidget(chkPositionDisplay);
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// add a checkbox to en-/disable the toolbar of the JKQTPlotter
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chkShowToolbar=new QCheckBox(tr("enable toolbar"), this);
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chkShowToolbar->setChecked(plot->get_displayToolbar());
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connect(chkShowToolbar, SIGNAL(toggled(bool)), plot, SLOT(set_displayToolbar(bool)));
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layChk->addWidget(chkShowToolbar);
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// add a checkbox to switch the toolbar between always visible and the hiding mode,
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// where it only appears, when the mouse hovers over its designated area
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chkToolbarAlwaysOn=new QCheckBox(tr("toolbar 'always on'"), this);
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chkToolbarAlwaysOn->setChecked(plot->get_toolbarAlwaysOn());
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connect(chkToolbarAlwaysOn, SIGNAL(toggled(bool)), plot, SLOT(set_toolbarAlwaysOn(bool)));
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layChk->addWidget(chkToolbarAlwaysOn);
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// add a checkbox to switch the grid on and off
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chkGrid=new QCheckBox(tr("show grid in plot"), this);
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chkGrid->setChecked(true);
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connect(chkGrid, SIGNAL(toggled(bool)), plot, SLOT(setGrid(bool)));
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layChk->addWidget(chkGrid);
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w->setLayout(layout);
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resize(800,600);
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}
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void TestUserInteraction::initPlot()
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{
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// 1. create a plotter window and get a pointer to the internal datastore (for convenience)
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JKQTPDatastore* ds=plot->getDatastore();
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// 2. now we create data for a simple plot (a sine curve)
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QVector<double> X, Y1, Y2;
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const int Ndata=100;
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for (int i=0; i<Ndata; i++) {
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const double x=double(i)/double(Ndata)*8.0*M_PI;
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X<<x;
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Y1<<sin(x);
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Y2<<sin(x)*exp(-0.2*x);
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}
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// 3. make data available to JKQTPlotter by adding it to the internal datastore.
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// Note: In this step the data is copied (of not specified otherwise), so you can
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// reuse X and Y afterwards!
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// the variables columnX and columnY will contain the internal column ID of the newly
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// created columns with names "x" and "y" and the (copied) data from X and Y.
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size_t columnX=ds->addCopiedColumn(X, "x");
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size_t columnY1=ds->addCopiedColumn(Y1, "y1");
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size_t columnY2=ds->addCopiedColumn(Y2, "y2");
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// 4. create a graph in the plot, which plots the dataset X/Y:
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JKQTPXYLineGraph* graph1=new JKQTPXYLineGraph(plot);
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graph1->set_xColumn(columnX);
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graph1->set_yColumn(columnY1);
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graph1->set_title(QObject::tr("sine graph"));
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plot->addGraph(graph1);
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JKQTPXYLineGraph* graph2=new JKQTPXYLineGraph(plot);
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graph2->set_xColumn(columnX);
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graph2->set_yColumn(columnY2);
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graph2->set_title(QObject::tr("sine*exp graph"));
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plot->addGraph(graph2);
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// 6. autoscale the plot so the graph is contained
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plot->zoomToFit();
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plot->get_plotter()->set_plotLabel("Sine Plots - User-Interaction Example");
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}
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