QxrdFileBrowserModel Class Reference

#include <qxrdfilebrowsermodel.h>

Inheritance diagram for QxrdFileBrowserModel:

Collaboration diagram for QxrdFileBrowserModel:

Public Types
typedef QAbstractTableModel	inherited

Public Slots
void	newDataAvailable (QVector< QFileInfo > dirs, QVector< QFileInfo > files, int limit=0, int trueSize=-1)
void	updatedFile (QFileInfo file)

Signals
void	rootChanged (const QString &path)
void	fileUpdated (QFileInfo file)

Public Member Functions
	QxrdFileBrowserModel (QObject *parent)
	~QxrdFileBrowserModel ()
void	initialize ()
QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const
int	rowCount (const QModelIndex &parent=QModelIndex()) const
int	columnCount (const QModelIndex &parent=QModelIndex()) const
void	setNameFilters (QStringList filters)
void	setNameFilterDisables (bool disables)
QFileInfo	fileInfo (const QModelIndex &index) const
QString	fileName (const QModelIndex &index) const
QString	filePath (const QModelIndex &index) const
void	setRootPath (QString path)
QString	rootPath () const
bool	isDir (const QModelIndex &index) const
virtual void	sort (int column, Qt::SortOrder order=Qt::AscendingOrder)
void	refresh ()
QStringList	nameFilters () const
int	sortedColumn () const
Qt::SortOrder	sortOrder () const
void	generateFileUpdates (int doIt)

Private Member Functions
void	updateModel ()

Private Attributes
QMutex	m_Mutex
QxrdFileBrowserModelUpdaterThreadPtr	m_UpdaterThread
QxrdFileBrowserModelUpdaterWPtr	m_Updater
QString	m_RootPath
QStringList	m_NameFilters
QVector< QFileInfo >	m_DirList
QVector< QFileInfo >	m_FileList
int	m_SortedColumn
Qt::SortOrder	m_SortOrder
int	m_Limit
int	m_TrueSize
double	m_HighlightOnTime
double	m_HighlightFadeTime
int	m_HighlightSaturation
int	m_HighlightHue
QTimer *	m_Timer

Detailed Description

Definition at line 17 of file qxrdfilebrowsermodel.h.

Member Typedef Documentation

typedef QAbstractTableModel QxrdFileBrowserModel::inherited

Definition at line 26 of file qxrdfilebrowsermodel.h.

Constructor & Destructor Documentation

QxrdFileBrowserModel::QxrdFileBrowserModel ( QObject *  parent )

explicit

Definition at line 14 of file qxrdfilebrowsermodel.cpp.

                                                          :
  QAbstractTableModel(parent),
  m_Mutex(QMutex::Recursive),
  m_UpdaterThread(NULL),
  m_Updater(),
  m_SortedColumn(0),
  m_SortOrder(Qt::AscendingOrder),
  m_Limit(1000),
  m_TrueSize(0),
  m_HighlightOnTime(0.5),
  m_HighlightFadeTime(1.5),
  m_HighlightSaturation(200),
  m_HighlightHue(116)
{
}

QxrdFileBrowserModel::~QxrdFileBrowserModel

(

)

Definition at line 30 of file qxrdfilebrowsermodel.cpp.

{
#ifndef QT_NO_DEBUG
  printf("Deleting file browser model\n");
#endif

//  if (m_UpdaterThread) {
//    m_UpdaterThread->shutdown();
//  }
}

Member Function Documentation

int QxrdFileBrowserModel::columnCount

(

const QModelIndex &

parent = QModelIndex()

)

const

Definition at line 158 of file qxrdfilebrowsermodel.cpp.

{
  return 3;
}

QVariant QxrdFileBrowserModel::data	(	const QModelIndex &	index,
		int	role = Qt::DisplayRole
	)		const

Definition at line 78 of file qxrdfilebrowsermodel.cpp.

References fileInfo(), m_HighlightFadeTime, m_HighlightHue, m_HighlightOnTime, m_HighlightSaturation, and m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  QModelIndex index = idx;
  QFileInfo info = fileInfo(index);

  if (role == Qt::DisplayRole) {
    if (index.isValid()) {
      if (index.column() == 0) {
        return info.fileName();
      } else if (index.column() == 1) {
        if (info.isDir()) {
          return "--";
        } else if (!info.exists()) {
          return "";
        } else {
          qint64 sz = info.size();

          if (sz < 1024) {
            return tr("%1 B").arg(sz);
          } else if (sz < 1024*1024) {
            return tr("%1 KB").arg(sz/1024);
          } else if (sz < 1024*1024*1024) {
            return tr("%1 MB").arg(sz/(1024*1024));
          } else {
            return tr("%1 GB").arg(sz/(1024*1024*1024));
          }
        }
      } else if (index.column() == 2) {
        return info.lastModified();
      }
    }
  } else if (role == Qt::DecorationRole) {
      if (index.column() == 0) {
        if (info.isDir()) {
          return QPixmap(":/images/folder-16x16.png");
        } else if (!info.exists()) {
          return QVariant();
        } else {
          QString suffix = info.suffix();

          if (suffix == "metadata") {
            return QPixmap(":/images/file-metadata-16x16.png");
          } else if (suffix == "avg") {
            return QPixmap(":/images/file-integration-16x16.png");
          } else if (suffix == "tif") {
            return QPixmap(":/images/file-image-16x16.png");
          } else {
            return QPixmap(":/images/file-generic-16x16.png");
          }
        }
      }
      //  } else if (role == Qt::SizeHintRole) {
      //    return QSize(80,10);
  } else if (role == Qt::BackgroundRole) {
    double lastMod = info.lastModified().msecsTo(QDateTime::currentDateTime())/1000.0;

    if (lastMod > (m_HighlightOnTime+m_HighlightFadeTime)) {
      return QColor(Qt::white);
    } else if (info.exists()){
      QxrdFileBrowserModel *model = const_cast<QxrdFileBrowserModel*>(this);
      emit model->dataChanged(index, index);
//      printf("Data %d changed after %g\n", index.row(), lastMod);

//      m_Updater -> needUpdate();

      if (lastMod > m_HighlightOnTime) {
        double fade = lastMod - m_HighlightOnTime;

        return QColor::fromHsv(m_HighlightHue, int(m_HighlightSaturation*double(m_HighlightFadeTime-fade)/double(m_HighlightFadeTime)), 255, 255);
      } else {
        return QColor::fromHsv(m_HighlightHue, m_HighlightSaturation, 255, 255);
      }
    }
  }

  return QVariant();
}

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QFileInfo QxrdFileBrowserModel::fileInfo

(

const QModelIndex &

index

)

const

Definition at line 187 of file qxrdfilebrowsermodel.cpp.

References m_DirList, m_FileList, m_Limit, m_Mutex, and m_TrueSize.

Referenced by data(), fileName(), filePath(), and isDir().

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  int n = index.row();
  QFileInfo info;

  if (n >= m_DirList.count()) {
    int nf = n-m_DirList.count();

    if (nf >= m_FileList.count()) {
      info = QFileInfo(tr("... %1 additional files not displayed...").arg(m_TrueSize-m_Limit));
    } else {
      info = m_FileList.at(nf);
    }
  } else {
    info = m_DirList.at(n);
  }

  return info;
}

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QString QxrdFileBrowserModel::fileName

(

const QModelIndex &

index

)

const

Definition at line 209 of file qxrdfilebrowsermodel.cpp.

References fileInfo(), and m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return fileInfo(index).fileName();
}

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QString QxrdFileBrowserModel::filePath

(

const QModelIndex &

index

)

const

Definition at line 216 of file qxrdfilebrowsermodel.cpp.

References fileInfo(), and m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return fileInfo(index).filePath();
}

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void QxrdFileBrowserModel::fileUpdated ( QFileInfo  file )

signal

Referenced by QxrdFileBrowser::QxrdFileBrowser(), and updatedFile().

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void QxrdFileBrowserModel::generateFileUpdates

(

int

doIt

)

Definition at line 330 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_Updater.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  QxrdFileBrowserModelUpdaterPtr updater(m_Updater);

  if (updater) {
    updater -> generateFileUpdates(doIt);
  }
}

QVariant QxrdFileBrowserModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = Qt::DisplayRole
	)		const

Definition at line 53 of file qxrdfilebrowsermodel.cpp.

References m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  if (orientation == Qt::Horizontal && role == Qt::DisplayRole) {
    switch (section) {
    case 0:
      return "File name";

    case 1:
      return "Size";

    case 2:
      return "Modified";

    default:
      return "";
    }
  } else {
    return inherited::headerData(section, orientation, role);
  }

  return QVariant();
}

void QxrdFileBrowserModel::initialize

(

)

Definition at line 41 of file qxrdfilebrowsermodel.cpp.

References m_Updater, and m_UpdaterThread.

{
  m_UpdaterThread =
      QxrdFileBrowserModelUpdaterThreadPtr(
        new QxrdFileBrowserModelUpdaterThread());
  m_UpdaterThread -> setModel(sharedFromThis());
//  m_UpdaterThread -> setObjectName("browser");
  m_UpdaterThread -> start();
  m_Updater = m_UpdaterThread->updater();
}

bool QxrdFileBrowserModel::isDir

(

const QModelIndex &

index

)

const

Definition at line 280 of file qxrdfilebrowsermodel.cpp.

References fileInfo(), and m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return fileInfo(index).isDir();
}

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QStringList QxrdFileBrowserModel::nameFilters

(

)

const

Definition at line 241 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_NameFilters.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return m_NameFilters;
}

void QxrdFileBrowserModel::newDataAvailable ( QVector< QFileInfo >  dirs, QVector< QFileInfo >  files, int  limit = 0, int  trueSize = -1  )

slot

Definition at line 303 of file qxrdfilebrowsermodel.cpp.

References m_DirList, m_FileList, m_Limit, m_Mutex, and m_TrueSize.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  beginResetModel();

  m_Limit = limit;
  m_TrueSize = trueSize;
  m_DirList = dirs;
  m_FileList = files;

  endResetModel();
}

void QxrdFileBrowserModel::refresh

(

)

Definition at line 262 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and updateModel().

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  updateModel();
}

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void QxrdFileBrowserModel::rootChanged ( const QString &  path )

signal

Referenced by QxrdFileBrowserModelUpdater::QxrdFileBrowserModelUpdater(), and setRootPath().

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QString QxrdFileBrowserModel::rootPath

(

)

const

Definition at line 234 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_RootPath.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return m_RootPath;
}

int QxrdFileBrowserModel::rowCount

(

const QModelIndex &

parent = QModelIndex()

)

const

Definition at line 163 of file qxrdfilebrowsermodel.cpp.

References m_DirList, m_FileList, m_Limit, and m_Mutex.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  if (m_Limit > 0) {
    return m_DirList.count() + m_Limit + 1;
  } else {
    return m_FileList.count() + m_DirList.count();
  }
}

void QxrdFileBrowserModel::setNameFilterDisables

(

bool

disables

)

Definition at line 183 of file qxrdfilebrowsermodel.cpp.

{
}

void QxrdFileBrowserModel::setNameFilters

(

QStringList

filters

)

Definition at line 174 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, m_NameFilters, and updateModel().

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  m_NameFilters = filters;

  updateModel();
}

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void QxrdFileBrowserModel::setRootPath

(

QString

path

)

Definition at line 223 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, m_RootPath, rootChanged(), and updateModel().

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  m_RootPath = path;

  updateModel();

  emit rootChanged(m_RootPath);
}

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void QxrdFileBrowserModel::sort ( int  column, Qt::SortOrder  order = Qt::AscendingOrder  )

virtual

Definition at line 287 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, m_SortedColumn, m_SortOrder, and m_Updater.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  if ((m_SortedColumn != column) || (m_SortOrder != order)) {
    m_SortedColumn = column;
    m_SortOrder    = order;

    QxrdFileBrowserModelUpdaterPtr updater(m_Updater);

    if (updater) {
      updater -> needUpdate();
    }
  }
}

int QxrdFileBrowserModel::sortedColumn

(

)

const

Definition at line 248 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_SortedColumn.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return m_SortedColumn;
}

Qt::SortOrder QxrdFileBrowserModel::sortOrder

(

)

const

Definition at line 255 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_SortOrder.

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  return m_SortOrder;
}

void QxrdFileBrowserModel::updatedFile ( QFileInfo  file )

slot

Definition at line 317 of file qxrdfilebrowsermodel.cpp.

References fileUpdated().

{
//  QxrdExperimentPtr expt(m_Experiment);

//  if (expt && qcepDebug(DEBUG_BROWSER)) {
//    expt->printMessage(tr("file %1 updated at %2")
//                                .arg(path)
//                                .arg(atTime.toString(Qt::ISODate)));
//  }

  emit fileUpdated(file);
}

void QxrdFileBrowserModel::updateModel ( )

private

Definition at line 269 of file qxrdfilebrowsermodel.cpp.

References m_Mutex, and m_Updater.

Referenced by refresh(), setNameFilters(), and setRootPath().

{
  QcepMutexLocker lock(__FILE__, __LINE__, &m_Mutex);

  QxrdFileBrowserModelUpdaterPtr updater(m_Updater);

  if (updater) {
    updater -> needUpdate();
  }
}

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Member Data Documentation

QVector<QFileInfo> QxrdFileBrowserModel::m_DirList

private

Definition at line 70 of file qxrdfilebrowsermodel.h.

Referenced by fileInfo(), newDataAvailable(), and rowCount().

QVector<QFileInfo> QxrdFileBrowserModel::m_FileList

private

Definition at line 71 of file qxrdfilebrowsermodel.h.

Referenced by fileInfo(), newDataAvailable(), and rowCount().

double QxrdFileBrowserModel::m_HighlightFadeTime

private

Definition at line 77 of file qxrdfilebrowsermodel.h.

Referenced by data().

int QxrdFileBrowserModel::m_HighlightHue

private

Definition at line 79 of file qxrdfilebrowsermodel.h.

Referenced by data().

double QxrdFileBrowserModel::m_HighlightOnTime

private

Definition at line 76 of file qxrdfilebrowsermodel.h.

Referenced by data().

int QxrdFileBrowserModel::m_HighlightSaturation

private

Definition at line 78 of file qxrdfilebrowsermodel.h.

Referenced by data().

int QxrdFileBrowserModel::m_Limit

private

Definition at line 74 of file qxrdfilebrowsermodel.h.

Referenced by fileInfo(), newDataAvailable(), and rowCount().

QMutex QxrdFileBrowserModel::m_Mutex

mutableprivate

Definition at line 65 of file qxrdfilebrowsermodel.h.

Referenced by data(), fileInfo(), fileName(), filePath(), generateFileUpdates(), headerData(), isDir(), nameFilters(), newDataAvailable(), refresh(), rootPath(), rowCount(), setNameFilters(), setRootPath(), sort(), sortedColumn(), sortOrder(), and updateModel().

QStringList QxrdFileBrowserModel::m_NameFilters

private

Definition at line 69 of file qxrdfilebrowsermodel.h.

Referenced by nameFilters(), and setNameFilters().

QString QxrdFileBrowserModel::m_RootPath

private

Definition at line 68 of file qxrdfilebrowsermodel.h.

Referenced by rootPath(), and setRootPath().

int QxrdFileBrowserModel::m_SortedColumn

private

Definition at line 72 of file qxrdfilebrowsermodel.h.

Referenced by sort(), and sortedColumn().

Qt::SortOrder QxrdFileBrowserModel::m_SortOrder

private

Definition at line 73 of file qxrdfilebrowsermodel.h.

Referenced by sort(), and sortOrder().

QTimer* QxrdFileBrowserModel::m_Timer

private

Definition at line 80 of file qxrdfilebrowsermodel.h.

int QxrdFileBrowserModel::m_TrueSize

private

Definition at line 75 of file qxrdfilebrowsermodel.h.

Referenced by fileInfo(), and newDataAvailable().

QxrdFileBrowserModelUpdaterWPtr QxrdFileBrowserModel::m_Updater

private

Definition at line 67 of file qxrdfilebrowsermodel.h.

Referenced by generateFileUpdates(), initialize(), sort(), and updateModel().

QxrdFileBrowserModelUpdaterThreadPtr QxrdFileBrowserModel::m_UpdaterThread

private

Definition at line 66 of file qxrdfilebrowsermodel.h.

Referenced by initialize().

---

The documentation for this class was generated from the following files:

• qxrdfilebrowsermodel.h (Commit a65ccc9... : jennings : 2016-03-15 14:00:18 -0500)
• qxrdfilebrowsermodel.cpp (Commit a65ccc9... : jennings : 2016-03-15 14:00:18 -0500)