mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-11-16 02:25:50 +08:00
281 lines
14 KiB
C++
281 lines
14 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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#include <QMessageBox>
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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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layChk2=new QHBoxLayout;
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layout->addLayout(layChk,0,0);
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layout->addLayout(layChk2,1,0);
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layout->addLayout(layForm,2,0);
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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,3,0);
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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->getPlotter()->getActionPrint());
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QMenu* menuPlotS=menuPlot->addMenu("Save ...");
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menuPlotS->addAction(plot->getPlotter()->getActionSaveData());
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menuPlotS->addAction(plot->getPlotter()->getActionSavePDF()); // not available from JKQTPlotter by default
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menuPlotS->addAction(plot->getPlotter()->getActionSavePlot());
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QMenu* menuPlotZ=menuPlot->addMenu("Zoom ...");
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menuPlotZ->addAction(plot->getPlotter()->getActionZoomAll());
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menuPlotZ->addAction(plot->getPlotter()->getActionZoomIn());
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menuPlotZ->addAction(plot->getPlotter()->getActionZoomOut());
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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->isMousePositionShown());
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connect(chkPositionDisplay, SIGNAL(toggled(bool)), plot, SLOT(setMousePositionShown(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->isToolbarVisible());
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connect(chkShowToolbar, SIGNAL(toggled(bool)), plot, SLOT(setToolbarVisible(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->isToolbarAlwaysOn());
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connect(chkToolbarAlwaysOn, SIGNAL(toggled(bool)), plot, SLOT(setToolbarAlwaysOn(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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// add a checkbox to switch the grid on and off
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chkLogX=new QCheckBox(tr("X log-scale"), this);
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chkLogX->setChecked(false);
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connect(chkLogX, SIGNAL(toggled(bool)), plot->getXAxis(), SLOT(setLogAxis(bool)));
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layChk2->addWidget(chkLogX);
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chkLogY=new QCheckBox(tr("Y log-scale"), this);
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chkLogY->setChecked(false);
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connect(chkLogY, SIGNAL(toggled(bool)), plot->getYAxis(), SLOT(setLogAxis(bool)));
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layChk2->addWidget(chkLogY);
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// add a spin box for plot magnification
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cmbMagnification=new QComboBox(this);
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cmbMagnification->addItem("25%", 0.25);
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cmbMagnification->addItem("50%", 0.50);
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cmbMagnification->addItem("75%", 0.75);
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cmbMagnification->addItem("100%", 1);
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cmbMagnification->addItem("150%", 1.5);
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cmbMagnification->addItem("200%", 2);
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layForm->addRow("plot magnification:", cmbMagnification);
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connect(cmbMagnification, SIGNAL(currentIndexChanged(int)), this, SLOT(setPlotMagnification(int)));
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cmbMagnification->setCurrentIndex(3);
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// add a QComboBox that allows to set the left mouse button action for the JKQTPlotter
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chkZoomByMouseWheel=new QCheckBox(this);
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chkZoomByMouseWheel->setChecked(plot->getZoomByMouseWheel());
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layForm->addRow("zoom by mouse wheel:", chkZoomByMouseWheel);
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connect(chkZoomByMouseWheel, SIGNAL(toggled(bool)), plot, SLOT(setZoomByMouseWheel(bool)));
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// add a QComboBox that allows to set the left mouse button action for the JKQTPlotter
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cmbMouseAction=new QComboBox(this);
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layForm->addRow("mouse action:", cmbMouseAction);
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cmbMouseAction->addItem("NoMouseAction");
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cmbMouseAction->addItem("PanPlotOnMove");
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cmbMouseAction->addItem("PanPlotOnRelease");
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cmbMouseAction->addItem("ZoomRectangle");
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cmbMouseAction->addItem("RectangleEvents");
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cmbMouseAction->addItem("CircleEvents");
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cmbMouseAction->addItem("EllipseEvents");
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cmbMouseAction->addItem("LineEvents");
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cmbMouseAction->addItem("ScribbleEvents");
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cmbMouseAction->addItem("ClickEvents");
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connect(cmbMouseAction, SIGNAL(currentIndexChanged(int)), this, SLOT(setLeftMouseAction(int)));
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setLeftMouseAction(cmbMouseAction->currentIndex());
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// and add a QLabel to show the different events of the JKQTPlotter:
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labMouseMoved=new QLabel(this);
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layForm->addRow("last mouse moved:", labMouseMoved);
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labMouseClicked=new QLabel(this);
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layForm->addRow("last mouse clicked:", labMouseClicked);
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labMouseAction=new QLabel(this);
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layForm->addRow("last plotter signal:", labMouseAction);
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connect(plot, SIGNAL(plotMouseMove(double, double)), this, SLOT(plotMouseMove(double, double)));
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connect(plot, SIGNAL(plotMouseClicked(double, double, Qt::KeyboardModifiers , Qt::MouseButton)), this, SLOT(plotMouseClicked(double, double, Qt::KeyboardModifiers, Qt::MouseButton)));
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connect(plot, SIGNAL(plotMouseDoubleClicked(double, double, Qt::KeyboardModifiers, Qt::MouseButton)), this, SLOT(plotMouseDoubleClicked(double, double, Qt::KeyboardModifiers, Qt::MouseButton)));
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connect(plot, SIGNAL(plotNewZoomRectangle(double, double, double, double, Qt::KeyboardModifiers)), this, SLOT(plotNewZoomRectangle(double, double, double, double, Qt::KeyboardModifiers)));
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connect(plot, SIGNAL(contextMenuOpened(double, double, QMenu*)), this, SLOT(contextMenuOpened(double, double, QMenu*)));
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connect(plot, SIGNAL(zoomChangedLocally(double, double, double, double, JKQTPlotter*)), this, SLOT(zoomChangedLocally(double, double, double, double, JKQTPlotter*)));
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connect(plot, SIGNAL(userClickFinished(double, double, Qt::KeyboardModifiers)), this, SLOT(userClickFinished(double, double, Qt::KeyboardModifiers)));
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connect(plot, SIGNAL(userScribbleClick(double, double, Qt::KeyboardModifiers, bool, bool)), this, SLOT(userScribbleClick(double, double, Qt::KeyboardModifiers, bool, bool)));
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connect(plot, SIGNAL(userRectangleFinished(double, double, double, double, Qt::KeyboardModifiers)), this, SLOT(userRectangleFinished(double, double, double, double, Qt::KeyboardModifiers)));
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connect(plot, SIGNAL(userLineFinished(double, double, double, double, Qt::KeyboardModifiers)), this, SLOT(userLineFinished(double, double, double, double, Qt::KeyboardModifiers)));
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connect(plot, SIGNAL(userCircleFinished(double, double, double, Qt::KeyboardModifiers)), this, SLOT(userCircleFinished(double, double, double, Qt::KeyboardModifiers)));
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connect(plot, SIGNAL(userEllipseFinished(double, double, double, double, Qt::KeyboardModifiers)), this, SLOT(userEllipseFinished(double, double, double, double, Qt::KeyboardModifiers)));
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w->setLayout(layout);
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resize(800,600);
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}
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void TestUserInteraction::setLeftMouseAction(int index)
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{
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plot->setMouseActionMode(static_cast<JKQTPlotter::MouseActionModes>(index));
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}
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void TestUserInteraction::setPlotMagnification(int index)
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{
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plot->setMagnification(cmbMagnification->itemData(index).toDouble());
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}
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void TestUserInteraction::plotMouseMove(double x, double y)
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{
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labMouseMoved->setText(QString("plotMouseMove(%1, %2)").arg(x).arg(y));
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}
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void TestUserInteraction::plotMouseClicked(double x, double y, Qt::KeyboardModifiers modifiers, Qt::MouseButton button)
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{
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labMouseClicked->setText(QString("plotMouseClicked(%1, %2, modifiers=%3, button=%4)").arg(x).arg(y).arg(KeyboradMod2String(modifiers)).arg(MouseButton2String(button)));
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}
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void TestUserInteraction::plotMouseDoubleClicked(double x, double y, Qt::KeyboardModifiers modifiers, Qt::MouseButton button)
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{
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labMouseClicked->setText(QString("plotMouseDoubleClicked(%1, %2, modifiers=%3, button=%4)").arg(x).arg(y).arg(KeyboradMod2String(modifiers)).arg(MouseButton2String(button)));
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}
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void TestUserInteraction::plotNewZoomRectangle(double mouseDragRectXStart, double mouseDragRectXEnd, double mouseDragRectYStart, double mouseDragRectYEnd, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("plotNewZoomRectangle(x=%1..%2, y=%3..%4, modifiers=%5)").arg(mouseDragRectXStart).arg(mouseDragRectXEnd).arg(mouseDragRectYStart).arg(mouseDragRectYEnd).arg(KeyboradMod2String(modifiers)));
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}
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void TestUserInteraction::contextMenuOpened(double x, double y, QMenu *contextMenu)
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{
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contextMenu->addSeparator();
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QAction* act=contextMenu->addMenu(QString("contextMenuOpened(x=%1, y=%2)").arg(x).arg(y))->addAction("user-added action");
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connect(act, &QAction::triggered, [x,y]() { QMessageBox::warning(nullptr, tr("Plot Context Menu"),
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tr("Context Menu was opened at x/y=%1/%2!").arg(x).arg(y),
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QMessageBox::Ok,
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QMessageBox::Ok); });
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labMouseAction->setText(QString("contextMenuOpened(x=%1, y=%2)").arg(x).arg(y));
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}
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void TestUserInteraction::zoomChangedLocally(double newxmin, double newxmax, double newymin, double newymax, JKQTPlotter */*sender*/)
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{
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labMouseAction->setText(QString("zoomChangedLocally(x=%1..%2, y=%3..%4)").arg(newxmin).arg(newxmax).arg(newymin).arg(newymax));
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}
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void TestUserInteraction::userClickFinished(double x, double y, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("userClickFinished(%1, %2, modifiers=%3)").arg(x).arg(y).arg(KeyboradMod2String(modifiers)));
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}
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void TestUserInteraction::userScribbleClick(double x, double y, Qt::KeyboardModifiers modifiers, bool first, bool last)
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{
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static int counter=0;
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if (first) counter=0;
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else counter++;
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labMouseAction->setText(QString("userClickFinished(%1, %2, modifiers=%3, first=%4, last=%5) -> scribble-points so far: %6").arg(x).arg(y).arg(KeyboradMod2String(modifiers)).arg(first).arg(last).arg(counter));
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}
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void TestUserInteraction::userRectangleFinished(double x, double y, double width, double height, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("userRectangleFinished(x=%1, y=%2, width=%3, height=%4, modifiers=%5)").arg(x).arg(y).arg(width).arg(height).arg(KeyboradMod2String(modifiers)));
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}
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void TestUserInteraction::userLineFinished(double x1, double y1, double x2, double y2, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("userLineFinished(x1=%1/%2, x2=%3/%4, modifiers=%5)").arg(x1).arg(y1).arg(x2).arg(y2).arg(KeyboradMod2String(modifiers)));
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}
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void TestUserInteraction::userCircleFinished(double x, double y, double radius, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("userRectangleFinished(x=%1, y=%2, radius=%3, modifiers=%4)").arg(x).arg(y).arg(radius).arg(KeyboradMod2String(modifiers)));
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}
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void TestUserInteraction::userEllipseFinished(double x, double y, double radiusX, double radiusY, Qt::KeyboardModifiers modifiers)
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{
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labMouseAction->setText(QString("userRectangleFinished(x=%1, y=%2, radiusX=%3, radiusY=%4, modifiers=%5)").arg(x).arg(y).arg(radiusX).arg(radiusY).arg(KeyboradMod2String(modifiers)));
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}
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QString TestUserInteraction::KeyboradMod2String(Qt::KeyboardModifiers modifiers) {
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QString mod="";
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if ((modifiers & Qt::ShiftModifier) != 0) mod+="SHIFT ";
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if ((modifiers & Qt::ControlModifier) != 0) mod+="CTRL ";
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if ((modifiers & Qt::AltModifier) != 0) mod+="ALT ";
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if ((modifiers & Qt::MetaModifier) != 0) mod+="META ";
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if ((modifiers & Qt::KeypadModifier) != 0) mod+="KEYPAD ";
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return mod;
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}
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QString TestUserInteraction::MouseButton2String(Qt::MouseButton button) {
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QString btn="";
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if ((button & Qt::LeftButton) != 0) btn+="LEFT ";
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if ((button & Qt::RightButton) != 0) btn+="RIGHT ";
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if ((button & Qt::MiddleButton) != 0) btn+="MID ";
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if ((button & Qt::BackButton) != 0) btn+="BACK ";
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if ((button & Qt::ForwardButton) != 0) btn+="FORWARD ";
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return btn;
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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->setXColumn(columnX);
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graph1->setYColumn(columnY1);
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graph1->setTitle(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->setXColumn(columnX);
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graph2->setYColumn(columnY2);
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graph2->setTitle(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->getPlotter()->setPlotLabel("Sine Plots - User-Interaction Example");
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}
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