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/***************************************************************************
** **
** QCustomPlot, an easy to use, modern plotting widget for Qt **
** Copyright (C) 2011-2018 Emanuel Eichhammer **
** **
** 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 3 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, see http://www.gnu.org/licenses/. **
** **
****************************************************************************
** Author: Emanuel Eichhammer **
** Website/Contact: http://www.qcustomplot.com/ **
** Date: 25.06.18 **
** Version: 2.0.1 **
****************************************************************************/
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(ui->cbUseCurrentSize, SIGNAL(toggled(bool)), ui->sbWidth, SLOT(setDisabled(bool)));
connect(ui->cbUseCurrentSize, SIGNAL(toggled(bool)), ui->sbHeight, SLOT(setDisabled(bool)));
ui->plot->axisRect()->setMinimumSize(300, 180);
setupPlot();
// register the plot document object (only needed once, no matter how many plots will be in the QTextDocument):
QCPDocumentObject *plotObjectHandler = new QCPDocumentObject(this);
ui->textEdit->document()->documentLayout()->registerHandler(QCPDocumentObject::PlotTextFormat, plotObjectHandler);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::setupPlot()
{
// The following plot setup is taken from the sine demo:
// add two new graphs and set their look:
ui->plot->addGraph();
ui->plot->graph(0)->setPen(QPen(Qt::blue)); // line color blue for first graph
ui->plot->graph(0)->setBrush(QBrush(QColor(0, 0, 255, 20))); // first graph will be filled with translucent blue
ui->plot->addGraph();
ui->plot->graph(1)->setPen(QPen(Qt::red)); // line color red for second graph
// generate some points of data (y0 for first, y1 for second graph):
QVector<double> x(250), y0(250), y1(250);
for (int i=0; i<250; ++i)
{
x[i] = i;
y0[i] = qExp(-i/150.0)*qCos(i/10.0); // exponentially decaying cosine
y1[i] = qExp(-i/150.0); // exponential envelope
}
// configure right and top axis to show ticks but no labels:
// (see QCPAxisRect::setupFullAxesBox for a quicker method to do this)
ui->plot->xAxis2->setVisible(true);
ui->plot->xAxis2->setTickLabels(false);
ui->plot->yAxis2->setVisible(true);
ui->plot->yAxis2->setTickLabels(false);
// make left and bottom axes always transfer their ranges to right and top axes:
connect(ui->plot->xAxis, SIGNAL(rangeChanged(QCPRange)), ui->plot->xAxis2, SLOT(setRange(QCPRange)));
connect(ui->plot->yAxis, SIGNAL(rangeChanged(QCPRange)), ui->plot->yAxis2, SLOT(setRange(QCPRange)));
// pass data points to graphs:
ui->plot->graph(0)->setData(x, y0);
ui->plot->graph(1)->setData(x, y1);
// let the ranges scale themselves so graph 0 fits perfectly in the visible area:
ui->plot->graph(0)->rescaleAxes();
// same thing for graph 1, but only enlarge ranges (in case graph 1 is smaller than graph 0):
ui->plot->graph(1)->rescaleAxes(true);
// Note: we could have also just called customPlot->rescaleAxes(); instead
// Allow user to drag axis ranges with mouse, zoom with mouse wheel and select graphs by clicking:
ui->plot->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectPlottables);
}
void MainWindow::on_actionInsert_Plot_triggered()
{
QTextCursor cursor = ui->textEdit->textCursor();
// insert the current plot at the cursor position. QCPDocumentObject::generatePlotFormat creates a
// vectorized snapshot of the passed plot (with the specified width and height) which gets inserted
// into the text document.
double width = ui->cbUseCurrentSize->isChecked() ? 0 : ui->sbWidth->value();
double height = ui->cbUseCurrentSize->isChecked() ? 0 : ui->sbHeight->value();
cursor.insertText(QString(QChar::ObjectReplacementCharacter), QCPDocumentObject::generatePlotFormat(ui->plot, width, height));
ui->textEdit->setTextCursor(cursor);
}
void MainWindow::on_actionSave_Document_triggered()
{
QString fileName = QFileDialog::getSaveFileName(this, "Save document...", qApp->applicationDirPath(), "*.pdf");
if (!fileName.isEmpty())
{
QPrinter printer;
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName(fileName);
QMargins pageMargins(20, 20, 20, 20);
#if QT_VERSION < QT_VERSION_CHECK(5, 3, 0)
printer.setFullPage(false);
printer.setPaperSize(QPrinter::A4);
printer.setOrientation(QPrinter::Portrait);
printer.setPageMargins(pageMargins.left(), pageMargins.top(), pageMargins.right(), pageMargins.bottom(), QPrinter::Millimeter);
#else
QPageLayout pageLayout;
pageLayout.setMode(QPageLayout::StandardMode);
pageLayout.setOrientation(QPageLayout::Portrait);
pageLayout.setPageSize(QPageSize(QPageSize::A4));
pageLayout.setUnits(QPageLayout::Millimeter);
pageLayout.setMargins(QMarginsF(pageMargins));
printer.setPageLayout(pageLayout);
#endif
ui->textEdit->document()->setPageSize(printer.pageRect().size());
ui->textEdit->document()->print(&printer);
}
}
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