exporter.cpp
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////////////////////////////////////////////////////////////////////////////////
//
// OpenHantek
// exporter.cpp
//
// Copyright (C) 2010 Oliver Haag
// oliver.haag@gmail.com
//
// 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/>.
//
////////////////////////////////////////////////////////////////////////////////
#include <cmath>
#include <QFile>
#include <QImage>
#include <QMutex>
#include <QPainter>
#include <QPixmap>
#include <QPrintDialog>
#include <QPrinter>
#include <QTextStream>
#include "exporter.h"
#include "dataanalyzer.h"
#include "dso.h"
#include "glgenerator.h"
#include "helper.h"
#include "settings.h"
////////////////////////////////////////////////////////////////////////////////
// class HorizontalDock
/// \brief Initializes the printer object.
Exporter::Exporter(DsoSettings *settings, DataAnalyzer *dataAnalyzer, QWidget *parent) : QObject(parent) {
this->settings = settings;
this->dataAnalyzer = dataAnalyzer;
this->format = EXPORT_FORMAT_PRINTER;
}
/// \brief Cleans up everything.
Exporter::~Exporter() {
}
/// \brief Set the filename of the output file (Not used for printing).
void Exporter::setFilename(QString filename) {
if(!filename.isEmpty())
this->filename = filename;
}
/// \brief Set the output format.
void Exporter::setFormat(ExportFormat format) {
if(format >= EXPORT_FORMAT_PRINTER && format <= EXPORT_FORMAT_CSV)
this->format = format;
}
/// \brief Print the document (May be a file too)
bool Exporter::doExport() {
if(this->format < EXPORT_FORMAT_CSV) {
// Choose the color values we need
DsoSettingsColorValues *colorValues;
if(this->format == EXPORT_FORMAT_IMAGE && this->settings->view.screenColorImages)
colorValues = &(this->settings->view.color.screen);
else
colorValues = &(this->settings->view.color.print);
QPaintDevice *paintDevice;
if(this->format < EXPORT_FORMAT_IMAGE) {
// We need a QPrinter for printing, pdf- and ps-export
paintDevice = new QPrinter(QPrinter::HighResolution);
((QPrinter *) paintDevice)->setOrientation(this->settings->view.zoom ? QPrinter::Portrait : QPrinter::Landscape);
((QPrinter *) paintDevice)->setPageMargins(20, 20, 20, 20, QPrinter::Millimeter);
if(this->format == EXPORT_FORMAT_PRINTER) {
// Show the printing dialog
QPrintDialog *dialog = new QPrintDialog((QPrinter *) paintDevice, (QWidget *) this->parent());
dialog->setWindowTitle(tr("Print oscillograph"));
if(dialog->exec() != QDialog::Accepted)
return false;
}
else {
// Configure the QPrinter
((QPrinter *) paintDevice)->setOutputFileName(this->filename);
((QPrinter *) paintDevice)->setOutputFormat((this->format == EXPORT_FORMAT_PDF) ? QPrinter::PdfFormat : QPrinter::PostScriptFormat);
}
}
else {
// We need a QPixmap for image-export
paintDevice = new QPixmap(this->settings->options.imageSize);
((QPixmap *) paintDevice)->fill(colorValues->background);
}
// Create a painter for our device
QPainter painter(paintDevice);
// Get line height
QFont font;
QFontMetrics fontMetrics(font, paintDevice);
double lineHeight = fontMetrics.height();
painter.setBrush(Qt::SolidPattern);
this->dataAnalyzer->mutex()->lock();
// Draw the settings table
double stretchBase = (double) (paintDevice->width() - lineHeight * 10) / 4;
// Print trigger details
painter.setPen(colorValues->voltage[this->settings->scope.trigger.source]);
QString levelString = Helper::valueToString(this->settings->scope.voltage[this->settings->scope.trigger.source].trigger, Helper::UNIT_VOLTS, 3);
QString pretriggerString = tr("%L1%").arg((int) (this->settings->scope.trigger.position * 100 + 0.5));
painter.drawText(QRectF(0, 0, lineHeight * 10, lineHeight), tr("%1 %2 %3 %4").arg(this->settings->scope.voltage[this->settings->scope.trigger.source].name, Dso::slopeString(this->settings->scope.trigger.slope), levelString, pretriggerString));
// Print sample count
painter.setPen(colorValues->text);
painter.drawText(QRectF(lineHeight * 10, 0, stretchBase, lineHeight), tr("%1 S").arg(this->dataAnalyzer->sampleCount()), QTextOption(Qt::AlignRight));
// Print samplerate
painter.drawText(QRectF(lineHeight * 10 + stretchBase, 0, stretchBase, lineHeight), Helper::valueToString(this->settings->scope.horizontal.samplerate, Helper::UNIT_SAMPLES) + tr("/s"), QTextOption(Qt::AlignRight));
// Print timebase
painter.drawText(QRectF(lineHeight * 10 + stretchBase * 2, 0, stretchBase, lineHeight), Helper::valueToString(this->settings->scope.horizontal.timebase, Helper::UNIT_SECONDS, 0) + tr("/div"), QTextOption(Qt::AlignRight));
// Print frequencybase
painter.drawText(QRectF(lineHeight * 10 + stretchBase * 3, 0, stretchBase, lineHeight), Helper::valueToString(this->settings->scope.horizontal.frequencybase, Helper::UNIT_HERTZ, 0) + tr("/div"), QTextOption(Qt::AlignRight));
// Draw the measurement table
stretchBase = (double) (paintDevice->width() - lineHeight * 6) / 10;
int channelCount = 0;
for(int channel = this->settings->scope.voltage.count() - 1; channel >= 0; channel--) {
if((this->settings->scope.voltage[channel].used || this->settings->scope.spectrum[channel].used) && this->dataAnalyzer->data(channel)) {
channelCount++;
double top = (double) paintDevice->height() - channelCount * lineHeight;
// Print label
painter.setPen(colorValues->voltage[channel]);
painter.drawText(QRectF(0, top, lineHeight * 4, lineHeight), this->settings->scope.voltage[channel].name);
// Print coupling/math mode
if((unsigned int) channel < this->settings->scope.physicalChannels)
painter.drawText(QRectF(lineHeight * 4, top, lineHeight * 2, lineHeight), Dso::couplingString((Dso::Coupling) this->settings->scope.voltage[channel].misc));
else
painter.drawText(QRectF(lineHeight * 4, top, lineHeight * 2, lineHeight), Dso::mathModeString((Dso::MathMode) this->settings->scope.voltage[channel].misc));
// Print voltage gain
painter.drawText(QRectF(lineHeight * 6, top, stretchBase * 2, lineHeight), Helper::valueToString(this->settings->scope.voltage[channel].gain, Helper::UNIT_VOLTS, 0) + tr("/div"), QTextOption(Qt::AlignRight));
// Print spectrum magnitude
painter.setPen(colorValues->spectrum[channel]);
painter.drawText(QRectF(lineHeight * 6 + stretchBase * 2, top, stretchBase * 2, lineHeight), Helper::valueToString(this->settings->scope.spectrum[channel].magnitude, Helper::UNIT_DECIBEL, 0) + tr("/div"), QTextOption(Qt::AlignRight));
// Amplitude string representation (4 significant digits)
painter.setPen(colorValues->text);
painter.drawText(QRectF(lineHeight * 6 + stretchBase * 4, top, stretchBase * 3, lineHeight), Helper::valueToString(this->dataAnalyzer->data(channel)->amplitude, Helper::UNIT_VOLTS, 4), QTextOption(Qt::AlignRight));
// Frequency string representation (5 significant digits)
painter.drawText(QRectF(lineHeight * 6 + stretchBase * 7, top, stretchBase * 3, lineHeight), Helper::valueToString(this->dataAnalyzer->data(channel)->frequency, Helper::UNIT_HERTZ, 5), QTextOption(Qt::AlignRight));
}
}
// Draw the marker table
double scopeHeight;
stretchBase = (double) (paintDevice->width() - lineHeight * 10) / 4;
painter.setPen(colorValues->text);
// Calculate variables needed for zoomed scope
double divs = fabs(this->settings->scope.horizontal.marker[1] - this->settings->scope.horizontal.marker[0]);
double time = divs * this->settings->scope.horizontal.timebase;
double zoomFactor = DIVS_TIME / divs;
double zoomOffset = (this->settings->scope.horizontal.marker[0] + this->settings->scope.horizontal.marker[1]) / 2;
if(this->settings->view.zoom) {
scopeHeight = (double) (paintDevice->height() - (channelCount + 5) * lineHeight) / 2;
double top = 2.5 * lineHeight + scopeHeight;
painter.drawText(QRectF(0, top, stretchBase, lineHeight), tr("Zoom x%L1").arg(DIVS_TIME / divs, -1, 'g', 3));
painter.drawText(QRectF(lineHeight * 10, top, stretchBase, lineHeight), Helper::valueToString(time, Helper::UNIT_SECONDS, 4), QTextOption(Qt::AlignRight));
painter.drawText(QRectF(lineHeight * 10 + stretchBase, top, stretchBase, lineHeight), Helper::valueToString(1.0 / time, Helper::UNIT_HERTZ, 4), QTextOption(Qt::AlignRight));
painter.drawText(QRectF(lineHeight * 10 + stretchBase * 2, top, stretchBase, lineHeight), Helper::valueToString(time / DIVS_TIME, Helper::UNIT_SECONDS, 3) + tr("/div"), QTextOption(Qt::AlignRight));
painter.drawText(QRectF(lineHeight * 10 + stretchBase * 3, top, stretchBase, lineHeight), Helper::valueToString(divs * this->settings->scope.horizontal.frequencybase / DIVS_TIME, Helper::UNIT_HERTZ, 3) + tr("/div"), QTextOption(Qt::AlignRight));
}
else {
scopeHeight = (double) paintDevice->height() - (channelCount + 4) * lineHeight;
double top = 2.5 * lineHeight + scopeHeight;
painter.drawText(QRectF(0, top, stretchBase, lineHeight), tr("Marker 1/2"));
painter.drawText(QRectF(lineHeight * 10, top, stretchBase * 2, lineHeight), Helper::valueToString(time, Helper::UNIT_SECONDS, 4), QTextOption(Qt::AlignRight));
painter.drawText(QRectF(lineHeight * 10 + stretchBase * 2, top, stretchBase * 2, lineHeight), Helper::valueToString(1.0 / time, Helper::UNIT_HERTZ, 4), QTextOption(Qt::AlignRight));
}
// Set DIVS_TIME x DIVS_VOLTAGE matrix for oscillograph
painter.setMatrix(QMatrix((paintDevice->width() - 1) / DIVS_TIME, 0, 0, -(scopeHeight - 1) / DIVS_VOLTAGE, (double) (paintDevice->width() - 1) / 2, (scopeHeight - 1) / 2 + lineHeight * 1.5), false);
// Draw the graphs
painter.setRenderHint(QPainter::Antialiasing);
painter.setBrush(Qt::NoBrush);
for(int zoomed = 0; zoomed < (this->settings->view.zoom ? 2 : 1); zoomed++) {
switch(this->settings->scope.horizontal.format) {
case Dso::GRAPHFORMAT_TY:
// Add graphs for channels
for(int channel = 0 ; channel < this->settings->scope.voltage.count(); channel++) {
if(this->settings->scope.voltage[channel].used && this->dataAnalyzer->data(channel)) {
painter.setPen(colorValues->voltage[channel]);
// What's the horizontal distance between sampling points?
double horizontalFactor = this->dataAnalyzer->data(channel)->samples.voltage.interval / this->settings->scope.horizontal.timebase;
// How many samples are visible?
double centerPosition, centerOffset;
if(zoomed) {
centerPosition = (zoomOffset + DIVS_TIME / 2) / horizontalFactor;
centerOffset = DIVS_TIME / horizontalFactor / zoomFactor / 2;
}
else {
centerPosition = DIVS_TIME / 2 / horizontalFactor;
centerOffset = DIVS_TIME / horizontalFactor / 2;
}
unsigned int firstPosition = qMax((int) (centerPosition - centerOffset), 0);
unsigned int lastPosition = qMin((int) (centerPosition + centerOffset), (int) this->dataAnalyzer->data(channel)->samples.voltage.count - 1);
// Draw graph
QPointF *graph = new QPointF[lastPosition - firstPosition + 1];
for(unsigned int position = firstPosition; position <= lastPosition; position++)
graph[position - firstPosition] = QPointF(position * horizontalFactor - DIVS_TIME / 2, this->dataAnalyzer->data(channel)->samples.voltage.sample[position] / this->settings->scope.voltage[channel].gain + this->settings->scope.voltage[channel].offset);
painter.drawPolyline(graph, lastPosition - firstPosition + 1);
}
}
// Add spectrum graphs
for (int channel = 0; channel < this->settings->scope.spectrum.count(); channel++) {
if(this->settings->scope.spectrum[channel].used && this->dataAnalyzer->data(channel)) {
painter.setPen(colorValues->spectrum[channel]);
// What's the horizontal distance between sampling points?
double horizontalFactor = this->dataAnalyzer->data(channel)->samples.spectrum.interval / this->settings->scope.horizontal.frequencybase;
// How many samples are visible?
double centerPosition, centerOffset;
if(zoomed) {
centerPosition = (zoomOffset + DIVS_TIME / 2) / horizontalFactor;
centerOffset = DIVS_TIME / horizontalFactor / zoomFactor / 2;
}
else {
centerPosition = DIVS_TIME / 2 / horizontalFactor;
centerOffset = DIVS_TIME / horizontalFactor / 2;
}
unsigned int firstPosition = qMax((int) (centerPosition - centerOffset), 0);
unsigned int lastPosition = qMin((int) (centerPosition + centerOffset), (int) this->dataAnalyzer->data(channel)->samples.spectrum.count - 1);
// Draw graph
QPointF *graph = new QPointF[lastPosition - firstPosition + 1];
for(unsigned int position = firstPosition; position <= lastPosition; position++)
graph[position - firstPosition] = QPointF(position * horizontalFactor - DIVS_TIME / 2, this->dataAnalyzer->data(channel)->samples.spectrum.sample[position] / this->settings->scope.spectrum[channel].magnitude + this->settings->scope.spectrum[channel].offset);
painter.drawPolyline(graph, lastPosition - firstPosition + 1);
}
}
break;
case Dso::GRAPHFORMAT_XY:
break;
default:
break;
}
// Set DIVS_TIME / zoomFactor x DIVS_VOLTAGE matrix for zoomed oscillograph
painter.setMatrix(QMatrix((paintDevice->width() - 1) / DIVS_TIME * zoomFactor, 0, 0, -(scopeHeight - 1) / DIVS_VOLTAGE, (double) (paintDevice->width() - 1) / 2 - zoomOffset * zoomFactor * (paintDevice->width() - 1) / DIVS_TIME, (scopeHeight - 1) * 1.5 + lineHeight * 4), false);
}
this->dataAnalyzer->mutex()->unlock();
// Draw grids
painter.setRenderHint(QPainter::Antialiasing, false);
for(int zoomed = 0; zoomed < (this->settings->view.zoom ? 2 : 1); zoomed++) {
// Set DIVS_TIME x DIVS_VOLTAGE matrix for oscillograph
painter.setMatrix(QMatrix((paintDevice->width() - 1) / DIVS_TIME, 0, 0, -(scopeHeight - 1) / DIVS_VOLTAGE, (double) (paintDevice->width() - 1) / 2, (scopeHeight - 1) * (zoomed + 0.5) + lineHeight * 1.5 + lineHeight * 2.5 * zoomed), false);
// Grid lines
painter.setPen(colorValues->grid);
if(this->format < EXPORT_FORMAT_IMAGE) {
// Draw vertical lines
for(int div = 1; div < DIVS_TIME / 2; div++) {
for(int dot = 1; dot < DIVS_VOLTAGE / 2 * 5; dot++) {
painter.drawLine(QPointF((double) -div - 0.02, (double) -dot / 5), QPointF((double) -div + 0.02, (double) -dot / 5));
painter.drawLine(QPointF((double) -div - 0.02, (double) dot / 5), QPointF((double) -div + 0.02, (double) dot / 5));
painter.drawLine(QPointF((double) div - 0.02, (double) -dot / 5), QPointF((double) div + 0.02, (double) -dot / 5));
painter.drawLine(QPointF((double) div - 0.02, (double) dot / 5), QPointF((double) div + 0.02, (double) dot / 5));
}
}
// Draw horizontal lines
for(int div = 1; div < DIVS_VOLTAGE / 2; div++) {
for(int dot = 1; dot < DIVS_TIME / 2 * 5; dot++) {
painter.drawLine(QPointF((double) -dot / 5, (double) -div - 0.02), QPointF((double) -dot / 5, (double) -div + 0.02));
painter.drawLine(QPointF((double) dot / 5, (double) -div - 0.02), QPointF((double) dot / 5, (double) -div + 0.02));
painter.drawLine(QPointF((double) -dot / 5, (double) div - 0.02), QPointF((double) -dot / 5, (double) div + 0.02));
painter.drawLine(QPointF((double) dot / 5, (double) div - 0.02), QPointF((double) dot / 5, (double) div + 0.02));
}
}
}
else {
// Draw vertical lines
for(int div = 1; div < DIVS_TIME / 2; div++) {
for(int dot = 1; dot < DIVS_VOLTAGE / 2 * 5; dot++) {
painter.drawPoint(QPointF(-div, (double) -dot / 5));
painter.drawPoint(QPointF(-div, (double) dot / 5));
painter.drawPoint(QPointF(div, (double) -dot / 5));
painter.drawPoint(QPointF(div, (double) dot / 5));
}
}
// Draw horizontal lines
for(int div = 1; div < DIVS_VOLTAGE / 2; div++) {
for(int dot = 1; dot < DIVS_TIME / 2 * 5; dot++) {
if(dot % 5 == 0)
continue; // Already done by vertical lines
painter.drawPoint(QPointF((double) -dot / 5, -div));
painter.drawPoint(QPointF((double) dot / 5, -div));
painter.drawPoint(QPointF((double) -dot / 5, div));
painter.drawPoint(QPointF((double) dot / 5, div));
}
}
}
// Axes
painter.setPen(colorValues->axes);
painter.drawLine(QPointF(-DIVS_TIME / 2, 0), QPointF(DIVS_TIME / 2, 0));
painter.drawLine(QPointF(0, -DIVS_VOLTAGE / 2), QPointF(0, DIVS_VOLTAGE / 2));
for(double div = 0.2; div <= DIVS_TIME / 2; div += 0.2) {
painter.drawLine(QPointF(div, -0.05), QPointF(div, 0.05));
painter.drawLine(QPointF(-div, -0.05), QPointF(-div, 0.05));
}
for(double div = 0.2; div <= DIVS_VOLTAGE / 2; div += 0.2) {
painter.drawLine(QPointF(-0.05, div), QPointF(0.05, div));
painter.drawLine(QPointF(-0.05, -div), QPointF(0.05, -div));
}
// Borders
painter.setPen(colorValues->border);
painter.drawRect(QRectF(-DIVS_TIME / 2, -DIVS_VOLTAGE / 2, DIVS_TIME, DIVS_VOLTAGE));
}
painter.end();
if(this->format == EXPORT_FORMAT_IMAGE)
((QPixmap *) paintDevice)->save(this->filename);
return true;
}
else {
QFile csvFile(this->filename);
if(!csvFile.open(QIODevice::WriteOnly | QIODevice::Text))
return false;
QTextStream csvStream(&csvFile);
for(int channel = 0 ; channel < this->settings->scope.voltage.count(); channel++) {
if(this->dataAnalyzer->data(channel)) {
if(this->settings->scope.voltage[channel].used) {
// Start with channel name and the sample interval
csvStream << "\"" << this->settings->scope.voltage[channel].name << "\"," << this->dataAnalyzer->data(channel)->samples.voltage.interval;
// And now all sample values in volts
for(unsigned int position = 0; position < this->dataAnalyzer->data(channel)->samples.voltage.count; position++)
csvStream << "," << this->dataAnalyzer->data(channel)->samples.voltage.sample[position];
// Finally a newline
csvStream << '\n';
}
if(this->settings->scope.spectrum[channel].used) {
// Start with channel name and the sample interval
csvStream << "\"" << this->settings->scope.spectrum[channel].name << "\"," << this->dataAnalyzer->data(channel)->samples.spectrum.interval;
// And now all magnitudes in dB
for(unsigned int position = 0; position < this->dataAnalyzer->data(channel)->samples.spectrum.count; position++)
csvStream << "," << this->dataAnalyzer->data(channel)->samples.spectrum.sample[position];
// Finally a newline
csvStream << '\n';
}
}
}
csvFile.close();
return true;
}
}