Changeset - b1d64d0822d2
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0 4 0
Hasan Yavuz Ă–ZDERYA - 9 years ago 2017-04-01 12:41:24
hy@ozderya.net
add windows style line endings option for recording
4 files changed with 115 insertions and 60 deletions:
0 comments (0 inline, 0 general)
src/datarecorder.cpp
Show inline comments
 
@@ -18,45 +18,46 @@
 
*/
 

	
 
#include "datarecorder.h"
 

	
 
#include <QtDebug>
 

	
 
DataRecorder::DataRecorder(QObject *parent) :
 
    QObject(parent),
 
    fileStream(&file)
 
{
 
    lastNumChannels = 0;
 
    disableBuffering = false;
 
    windowsLE = false;
 
}
 

	
 
bool DataRecorder::startRecording(QString fileName, QString separator, QStringList channelNames)
 
{
 
    Q_ASSERT(!file.isOpen());
 
    _sep =  separator;
 

	
 
    // open file
 
    file.setFileName(fileName);
 
    if (!file.open(QIODevice::WriteOnly))
 
    {
 
        qCritical() << "Opening file " << fileName
 
                    << " for recording failed with error: " << file.error();
 
        return false;
 
    }
 

	
 
    // write header line
 
    if (!channelNames.isEmpty())
 
    {
 
        fileStream << channelNames.join(_sep);
 
        fileStream << "\n";
 
        fileStream << le();
 
        lastNumChannels = channelNames.length();
 
    }
 
    return true;
 
}
 

	
 
void DataRecorder::addData(double* data, unsigned length, unsigned numOfChannels)
 
{
 
    Q_ASSERT(length > 0);
 
    Q_ASSERT(length % numOfChannels == 0);
 

	
 
    if (lastNumChannels != 0 && numOfChannels != lastNumChannels)
 
    {
 
@@ -65,25 +66,30 @@ void DataRecorder::addData(double* data,
 
            " during recording, CSV file is corrupted but no data will be lost.";
 
    }
 
    lastNumChannels = numOfChannels;
 

	
 
    unsigned numOfSamples = length / numOfChannels; // per channel
 
    for (unsigned int i = 0; i < numOfSamples; i++)
 
    {
 
        for (unsigned ci = 0; ci < numOfChannels; ci++)
 
        {
 
            fileStream << data[ci * numOfSamples + i];
 
            if (ci != numOfChannels-1) fileStream << _sep;
 
        }
 
        fileStream << '\n';
 
        fileStream << le();
 
    }
 

	
 
    if (disableBuffering) fileStream.flush();
 
}
 

	
 
void DataRecorder::stopRecording()
 
{
 
    Q_ASSERT(file.isOpen());
 

	
 
    file.close();
 
    lastNumChannels = 0;
 
}
 

	
 
const char* DataRecorder::le() const
 
{
 
    return windowsLE ? "\r\n" : "\n";
 
}
src/datarecorder.h
Show inline comments
 
@@ -25,24 +25,32 @@
 
#include <QTextStream>
 

	
 
class DataRecorder : public QObject
 
{
 
    Q_OBJECT
 
public:
 
    explicit DataRecorder(QObject *parent = 0);
 

	
 
    /// Disables file buffering
 
    bool disableBuffering;
 

	
 
    /**
 
     * Use CR+LF as line ending. `false` by default.
 
     *
 
     * @note Toggling this variable during a recording will result in
 
     * a corrupted file. Care must be taken at higher (UI) levels.
 
     */
 
    bool windowsLE;
 

	
 
    /**
 
     * @brief Starts recording data to a file in CSV format.
 
     *
 
     * File is opened and header line (names of channels) is written.
 
     *
 
     * @param fileName name of the recording file
 
     * @param separator column separator
 
     * @param channelNames names of the channels for header line, if empty no header line is written
 
     * @return false if file operation fails (read only etc.)
 
     */
 
    bool startRecording(QString fileName, QString separator, QStringList channelNames);
 

	
 
    /**
 
@@ -63,15 +71,18 @@ public:
 
     * @param numOfChannels how many channels samples this data carries
 
     */
 
    void addData(double* data, unsigned length, unsigned numOfChannels);
 

	
 
    /// Stops recording, closes file.
 
    void stopRecording();
 

	
 
private:
 
    unsigned lastNumChannels;   ///< used for error message only
 
    QFile file;
 
    QTextStream fileStream;
 
    QString _sep;
 

	
 
    /// Returns the selected line ending.
 
    const char* le() const;
 
};
 

	
 
#endif // DATARECORDER_H
src/recordpanel.cpp
Show inline comments
 
@@ -51,24 +51,32 @@ RecordPanel::RecordPanel(DataRecorder* r
 
            this, &RecordPanel::selectFile);
 
    connect(&recordAction, &QAction::triggered,
 
            this, &RecordPanel::onRecord);
 

	
 
    connect(ui->cbRecordPaused, SIGNAL(toggled(bool)),
 
            this, SIGNAL(recordPausedChanged(bool)));
 

	
 
    connect(ui->cbDisableBuffering, &QCheckBox::toggled,
 
            [this](bool enabled)
 
            {
 
                _recorder->disableBuffering = enabled;
 
            });
 

	
 
    connect(ui->cbWindowsLE, &QCheckBox::toggled,
 
            [this](bool enabled)
 
            {
 
                _recorder->windowsLE = enabled;
 
            });
 

	
 
    connect(&recordAction, &QAction::toggled, ui->cbWindowsLE, &QWidget::setDisabled);
 
}
 

	
 
RecordPanel::~RecordPanel()
 
{
 
    delete ui;
 
}
 

	
 
QToolBar* RecordPanel::toolbar()
 
{
 
    return &recordToolBar;
 
}
 

	
src/recordpanel.ui
Show inline comments
 
<?xml version="1.0" encoding="UTF-8"?>
 
<ui version="4.0">
 
 <class>RecordPanel</class>
 
 <widget class="QWidget" name="RecordPanel">
 
  <property name="geometry">
 
   <rect>
 
    <x>0</x>
 
    <y>0</y>
 
    <width>532</width>
 
    <width>627</width>
 
    <height>261</height>
 
   </rect>
 
  </property>
 
  <property name="windowTitle">
 
   <string>Form</string>
 
  </property>
 
  <layout class="QHBoxLayout" name="horizontalLayout_2">
 
   <item>
 
    <layout class="QVBoxLayout" name="verticalLayout">
 
     <item>
 
      <layout class="QHBoxLayout" name="horizontalLayout">
 
       <item>
 
@@ -35,71 +35,111 @@
 
           <horstretch>0</horstretch>
 
           <verstretch>0</verstretch>
 
          </sizepolicy>
 
         </property>
 
         <property name="text">
 
          <string>Select file...</string>
 
         </property>
 
        </widget>
 
       </item>
 
      </layout>
 
     </item>
 
     <item>
 
      <widget class="QCheckBox" name="cbAutoIncrement">
 
       <property name="toolTip">
 
        <string>Increments file name automatically everytime a new recording starts</string>
 
       </property>
 
       <property name="text">
 
        <string>Auto increment file name</string>
 
       </property>
 
       <property name="checked">
 
        <bool>true</bool>
 
       </property>
 
      </widget>
 
     </item>
 
     <item>
 
      <widget class="QCheckBox" name="cbRecordPaused">
 
       <property name="toolTip">
 
        <string>Continue recording to file even when plotting is paused</string>
 
       </property>
 
       <property name="text">
 
        <string>Record while paused</string>
 
       </property>
 
       <property name="checked">
 
        <bool>true</bool>
 
       </property>
 
      </widget>
 
     </item>
 
     <item>
 
      <widget class="QCheckBox" name="cbStopOnClose">
 
       <property name="text">
 
        <string>Stop recording when port closed</string>
 
       </property>
 
       <property name="checked">
 
        <bool>true</bool>
 
       </property>
 
      </widget>
 
     </item>
 
     <item>
 
      <widget class="QCheckBox" name="cbHeader">
 
       <property name="toolTip">
 
        <string>Channel names are written to the first line of record file</string>
 
       </property>
 
       <property name="text">
 
        <string>Write header line</string>
 
       </property>
 
       <property name="checked">
 
        <bool>true</bool>
 
       </property>
 
      </widget>
 
      <layout class="QGridLayout" name="gridLayout">
 
       <item row="1" column="1">
 
        <widget class="QCheckBox" name="cbHeader">
 
         <property name="toolTip">
 
          <string>Channel names are written to the first line of record file</string>
 
         </property>
 
         <property name="text">
 
          <string>Write header line</string>
 
         </property>
 
         <property name="checked">
 
          <bool>true</bool>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="2" column="0">
 
        <widget class="QCheckBox" name="cbRecordPaused">
 
         <property name="toolTip">
 
          <string>Continue recording to file even when plotting is paused</string>
 
         </property>
 
         <property name="text">
 
          <string>Record while paused</string>
 
         </property>
 
         <property name="checked">
 
          <bool>true</bool>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="3" column="0">
 
        <widget class="QCheckBox" name="cbDisableBuffering">
 
         <property name="toolTip">
 
          <string>Do not buffer when writing to file. Check this if you are using other software to open the file during recording.</string>
 
         </property>
 
         <property name="text">
 
          <string>Disable buffering</string>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="2" column="1">
 
        <widget class="QCheckBox" name="cbStopOnClose">
 
         <property name="text">
 
          <string>Stop recording when port closed</string>
 
         </property>
 
         <property name="checked">
 
          <bool>true</bool>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="1" column="0">
 
        <widget class="QCheckBox" name="cbAutoIncrement">
 
         <property name="toolTip">
 
          <string>Increments file name automatically everytime a new recording starts</string>
 
         </property>
 
         <property name="text">
 
          <string>Auto increment file name</string>
 
         </property>
 
         <property name="checked">
 
          <bool>true</bool>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="3" column="1">
 
        <widget class="QCheckBox" name="cbWindowsLE">
 
         <property name="toolTip">
 
          <string>Use CR+LF as line endings. Some windows software may not show lines correctly otherwise. Can't be changed during recording.</string>
 
         </property>
 
         <property name="text">
 
          <string>Windows Style Line Endings</string>
 
         </property>
 
         <property name="checked">
 
          <bool>false</bool>
 
         </property>
 
        </widget>
 
       </item>
 
       <item row="1" column="2">
 
        <spacer name="horizontalSpacer_2">
 
         <property name="orientation">
 
          <enum>Qt::Horizontal</enum>
 
         </property>
 
         <property name="sizeHint" stdset="0">
 
          <size>
 
           <width>1</width>
 
           <height>20</height>
 
          </size>
 
         </property>
 
        </spacer>
 
       </item>
 
      </layout>
 
     </item>
 
     <item>
 
      <layout class="QHBoxLayout" name="horizontalLayout_3">
 
       <item>
 
        <widget class="QLabel" name="label">
 
         <property name="text">
 
          <string>Column Separator:</string>
 
         </property>
 
        </widget>
 
       </item>
 
       <item>
 
        <widget class="QLineEdit" name="leSeparator">
 
@@ -124,34 +164,24 @@
 
         </property>
 
         <property name="sizeHint" stdset="0">
 
          <size>
 
           <width>40</width>
 
           <height>20</height>
 
          </size>
 
         </property>
 
        </spacer>
 
       </item>
 
      </layout>
 
     </item>
 
     <item>
 
      <widget class="QCheckBox" name="cbDisableBuffering">
 
       <property name="toolTip">
 
        <string>Do not buffer when writing to file. Check this if you are using other software to open the file during recording.</string>
 
       </property>
 
       <property name="text">
 
        <string>Disable buffering</string>
 
       </property>
 
      </widget>
 
     </item>
 
     <item>
 
      <spacer name="verticalSpacer">
 
       <property name="orientation">
 
        <enum>Qt::Vertical</enum>
 
       </property>
 
       <property name="sizeHint" stdset="0">
 
        <size>
 
         <width>20</width>
 
         <height>1</height>
 
        </size>
 
       </property>
 
      </spacer>
 
     </item>
0 comments (0 inline, 0 general)