PROG: Added capability to display either csv or text files. Fixed problem for...

#include <QString>

#include <QStringList>

#include <QTableView>

#include <QTextEdit>

#include <QTextStream>

#include <QVBoxLayout>

namespace Isis {

  /** 

   * Creates a view showing the CSV file from BundleObservation. 

   * Creates a view showing the CSV or text files from BundleSolutionInfo.

   * 

   * @param FileItemQsp fileItem QSharedPointer to the fileItem from the ProjectItemModel

   */

  BundleObservationView::BundleObservationView(FileItemQsp fileItem, QWidget *parent):

                         AbstractProjectItemView(parent) {

    if (fileItem->fileName().contains(".csv")) {

      displayCsvFile(fileItem);

    }

    else if (fileItem->fileName().contains(".txt")) {

      displayTextFile(fileItem);

    }

  }

  /**

   * Creates a view showing the CSV file from BundleSolutionInfo.

   *

   * @param FileItemQsp fileItem QSharedPointer to the fileItem from the ProjectItemModel

   */

  void BundleObservationView::displayCsvFile(FileItemQsp fileItem) {

    QStandardItemModel *model = new QStandardItemModel;

    if (!QFile::exists(fileItem->fileName())) {

      return;

    }

    QFile file(fileItem->fileName());

    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {

      return;

    }

    if (file.open(QIODevice::ReadOnly)) {

    int numHeaderLines = 3;

    if (fileItem->fileName().contains("images")) {

      numHeaderLines = 2;

    }

      int lineindex = 0;                     // file line counter

    QTextStream in(&file);                 // read to text stream

      while (!in.atEnd()) {

    // read and populate header from first two or three lines

    QString header1;

    QString header2;

    QString header3;

    QStringList lineToken1;

    QStringList lineToken2;

    QStringList lineToken3;

    header1 = in.readLine();

    lineToken1 = header1.split(",");

    header2 = in.readLine();

    lineToken2 = header2.split(",");

    if (numHeaderLines == 2) {

      for (int i = 0; i < lineToken1.size(); i++) {

        QString t1 = lineToken1.at(i);

        QString t2 = lineToken2.at(i);

        QString head = t1 + "\n" + t2;

        QStandardItem *v1 = new QStandardItem(head);

        model->setHorizontalHeaderItem(i,v1);

      }

    }

    if (numHeaderLines == 3) {

      header3 = in.readLine();

      lineToken3 = header3.split(",");

      for (int i = 0; i < lineToken1.size(); i++) {

        QString t1 = lineToken1.at(i);

        QString t2 = lineToken2.at(i);

        QString t3 = lineToken3.at(i);

        QString head = t1 + "\n" + t2 + "\n" + t3;

        QStandardItem *v1 = new QStandardItem(head);

        model->setHorizontalHeaderItem(i,v1);

      }

    }

        // read one line from textstream(separated by "\n")

    // populate remainder of table

    int lineindex = 0;

    while (!in.atEnd()) {

      QString fileLine = in.readLine();

        // parse the read line into separate pieces(tokens) with "," as the delimiter

      // parse line into separate pieces(tokens) with "," as the delimiter

      QStringList lineToken = fileLine.split(",", QString::SkipEmptyParts);

      // load parsed data to model accordingly

        for (int j = 0; j < lineToken.size(); j++) {

          QString value = lineToken.at(j);

      for (int i = 0; i < lineToken.size(); i++) {

        QString value = lineToken.at(i);

          //  First 2 lines are header, load into model header data

          if (lineindex < 2) {

            //qDebug()<<"header = "<<value;

            //model->setHeaderData(j, Qt::Horizontal, value);

            //qDebug()<<"header = "<<value;

            QStandardItem *v1 = new QStandardItem(value);

            model->setHorizontalHeaderItem(j,v1);

            //model->setHeaderData(j, Qt::Horizontal, value);

          }

          else {

        QStandardItem *item = new QStandardItem(value);

            model->setItem(lineindex, j, item);

        model->setItem(lineindex, i, item);

      }

        }

      lineindex++;

    }

    file.close();

    }

    QTableView *qtable=new QTableView();

    qtable->setModel(model);

    qtable->setSortingEnabled(true);

    QHeaderView *headerView = qtable->horizontalHeader();

    headerView->setStretchLastSection(true);

    // resizes to contents based on entire column

    // NOTE: QHeaderView::ResizeToContents does not allow user to resize by dragging column divider

    qtable->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);

    QVBoxLayout *layout = new QVBoxLayout;

    setLayout(layout);

  /**

   * Destructor

   * Creates a view showing a text file from BundleSolutionInfo.

   *

   * @param FileItemQsp fileItem QSharedPointer to the fileItem from the ProjectItemModel

   */

  BundleObservationView::~BundleObservationView() {

  void BundleObservationView::displayTextFile(FileItemQsp fileItem) {

    if (!QFile::exists(fileItem->fileName())) {

      return;

    }

    QFile file(fileItem->fileName());

    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {

      return;

    }

    QTextStream in(&file);

    QTextEdit *qText=new QTextEdit();

    qText->setFontFamily("Courier");

    while (!in.atEnd()) {

      qText->append(in.readLine());

    }

    file.close();

    QVBoxLayout *layout = new QVBoxLayout;

    setLayout(layout);

    layout->addWidget(qText);

    qText->moveCursor(QTextCursor::Start);

    QSizePolicy policy = sizePolicy();

    policy.setHorizontalPolicy(QSizePolicy::Expanding);

    policy.setVerticalPolicy(QSizePolicy::Expanding);

    setSizePolicy(policy);

  }

  /**

   * Destructor

   */

  BundleObservationView::~BundleObservationView() {

  }

}

 */

#include "AbstractProjectItemView.h"

#include "FileItem.h"

namespace Isis{

   *   @history 2017-05-05 Tracie Sucharski - Changed for the serialization of BundleObservation

   *                           files. This was implemented create a new ProjectItem type called

   *                           FileItemQsp. Fixes #4839, #4840.

   *   @history 2018-03-21 Ken Edmundson - Added capability to display either csv or text files.

   *                           Fixed problem for display of multi-line headers for csv files.

   *                           Set SectionResizeMode to QHeaderView::ResizeToContents so columns are

   *                           displayed at the width of the maximum size of the column content.

   */

  class BundleObservationView : public AbstractProjectItemView

    Q_OBJECT

    public:

      BundleObservationView(FileItemQsp fileItem, QWidget *parent=0);

      //BundleObservationView(const BundleObservationView &other);

      ~BundleObservationView();

    private:

      void displayCsvFile(FileItemQsp fileItem);

      void displayTextFile(FileItemQsp fileItem);

  };

}

#endif