#include <LogView.h>

Inheritance diagram for QGpGuiTools::LogView:

Public Slots
void	flushBuffer ()
Signals
void	bufferReady ()
Public Member Functions
void	append (const QString &text)
virtual ClassId	classId () const
void	clear ()
	LogView (QWidget *parent=0)
void	operator= (LogView &o)
void	remove ()
Protected Member Functions
virtual void	flushStream ()
virtual void	sendToStream (const QString &val)

Constructor & Destructor Documentation

QGpGuiTools::LogView::LogView ( QWidget * parent = 0 )

A LogView is a QWidget but also an AbstractStream that can be automatically deleted by the log manager at application level. To prevent abusive deletion while still linked to its QWidget parent, an auto-reference is added in this constructor. As a matter ofconsequence, you cannot delete this object (or let its parent destroying it) directly with delete. Instead, call remove().

References QGpCoreTools::SharedObject::addReference(), bufferReady(), flushBuffer(), and TRACE.

      : QTextBrowser(parent), AbstractStream()
  {
    TRACE;
    setAcceptRichText (false);
    setFontFamily( "Bitstream Vera Sans Mono" );
    setLineWrapMode(QTextEdit::NoWrap);
    // Avoid more than 2 refresh of the widget per second
    _clock.setInterval(500);
    connect(&_clock, SIGNAL(timeout()), this, SLOT(flushBuffer()) );
    connect(this, SIGNAL(bufferReady()), this, SLOT(wakeUp()), Qt::QueuedConnection);

    addReference(); // Avoid deletion by stream management
  }

Member Function Documentation

void QGpGuiTools::LogView::append ( const QString & text ) [inline]

References QGpGuiTools::operator<<().

Referenced by flushBuffer().

{operator<<(text);}

void QGpGuiTools::LogView::bufferReady ( ) [signal]

Referenced by flushStream(), LogView(), and sendToStream().

virtual ClassId QGpGuiTools::LogView::classId ( ) const [inline, virtual]

Implements QGpCoreTools::AbstractStream.

{return LogViewId;}

void QGpGuiTools::LogView::clear ( )

References QGpCoreTools::AbstractStream::lock(), TRACE, and QGpCoreTools::AbstractStream::unlock().

  {
    TRACE;
    lock ();
    _buffer.clear();
    QTextBrowser::clear();
    unlock();
  }

void QGpGuiTools::LogView::flushBuffer ( ) [slot]

References append(), QGpCoreTools::AbstractStream::lock(), TRACE, TRACE_BUG, and QGpCoreTools::AbstractStream::unlock().

Referenced by LogView(), operator=(), and QGpGuiTools::LogWidget::text().

  {
    TRACE;
    lock ();
    if(_buffer.isEmpty()) {
      TRACE_BUG;
      _clock.stop();
    } else if(_buffer.length()>1000000) {
      TRACE_BUG;
      _buffer+= "\n\n Buffer overflow!\nFreezing stream...";
      QTextBrowser::append( "\n\n [...] \n\n" );
      _buffer=_buffer.right(500000);
    } else {
      if(_buffer.endsWith("\n")) {
        TRACE_BUG;
        _buffer.chop(1);
        QTextBrowser::append(_buffer);
        _buffer.clear();
      } else {
        TRACE_BUG;
        int lastLF=_buffer.lastIndexOf("\n");
        if(lastLF > -1) {
          QTextBrowser::append(_buffer.left(lastLF) );
          _buffer=_buffer.right(_buffer.length() - lastLF - 1);
        }
      }
    }
    unlock();
  }

void QGpGuiTools::LogView::flushStream ( ) [protected, virtual]

Implements QGpCoreTools::AbstractStream.

References bufferReady().

  {
    if(!_clock.isActive()) emit bufferReady();
  }

void QGpGuiTools::LogView::operator= ( LogView & o )

References flushBuffer(), QGpCoreTools::AbstractStream::lock(), TRACE, and QGpCoreTools::AbstractStream::unlock().

  {
    TRACE;
    lock ();
    o.lock ();
    _buffer=o._buffer;
    setText(o.toPlainText());
    o.unlock();
    unlock();
    flushBuffer();
  }

void QGpGuiTools::LogView::remove ( )

Detach from its QWidget parent, if any and delete this oblect

References QGpCoreTools::SharedObject::removeReference(), and TRACE.

  {
    TRACE;
    hide();
    setParent(0);
    removeReference(this);
  }

void QGpGuiTools::LogView::sendToStream ( const QString & val ) [protected, virtual]

Implements QGpCoreTools::AbstractStream.

References bufferReady().

  {
    _buffer+=val;
    if(!_clock.isActive()) emit bufferReady();
  }

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

QGpGuiTools/LogView.h
QGpGuiTools/LogView.cpp

Public Slots

Signals

Public Member Functions

Protected Member Functions

Constructor & Destructor Documentation

Member Function Documentation