okular/generators/ghostview/gvlogwindow.cpp

/***************************************************************************
 *   Copyright (C) 2005 by Piotr Szymanski <niedakh@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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#include <qheaderview.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qlist.h>
#include <qpixmap.h>
#include <qstringlist.h>
#include <qstring.h>
#include <qtoolbutton.h>
#include <qtreewidget.h>

#include <kdebug.h>
#include <kglobalsettings.h>
#include <kicon.h>
#include <klocale.h>
#include <ktreewidgetsearchline.h>

#include "gvlogwindow.h"

GSLogWindow::GSLogWindow( QWidget* parent )
 : KVBox( parent )
{
    kDebug() << "Starting logwindow" <<endl;

    layout()->setSpacing( 2 );
    QWidget *searchWidget = new QWidget( this );
    QSizePolicy sp = searchWidget->sizePolicy();
    sp.setVerticalPolicy( QSizePolicy::Minimum );
    searchWidget->setSizePolicy( sp );
    QHBoxLayout *searchlay = new QHBoxLayout( searchWidget );
    searchlay->setSpacing( 2 );
    searchlay->setMargin( 0 );
    QToolButton *clearBtn =  new QToolButton( searchWidget );
    clearBtn->setIcon( KIcon( layoutDirection() == Qt::RightToLeft ? "clear_left" : "locationbar_erase" ) );
    clearBtn->setToolTip( i18n( "Clear filter" ) );
    clearBtn->setAutoRaise( true );
    searchlay->addWidget( clearBtn );

    m_searchLine = new KTreeWidgetSearchLine();
    connect( clearBtn, SIGNAL( clicked() ), m_searchLine, SLOT( clear() ) );
    searchlay->addWidget( m_searchLine );

    m_msgList = new QTreeWidget( this );
    QStringList cols;
    cols.append( i18n("Messages") );
    m_msgList->setHeaderLabels( cols );
    m_msgList->setSortingEnabled( false );
    m_msgList->setRootIsDecorated( false );
    m_msgList->setAlternatingRowColors( true );
    m_msgList->header()->resizeSection( 1, 0 );
    m_msgList->setSelectionBehavior( QAbstractItemView::SelectRows );
    m_searchLine->addTreeWidget( m_msgList );

    QList< int > searchCols;
    searchCols.append(0);
    m_searchLine -> setSearchColumns (searchCols);

    m_clearTimer.setSingleShot( false );
    connect( &m_clearTimer, SIGNAL(timeout()), this, SLOT(appendBuffered()));
}

bool GSLogWindow::event( QEvent * event )
{
// FIXME: is this stuff needed?
/*
    KVBox::event(event);
    if ( event->type() == QEvent::Reparent && ( m_msgList->childCount() ) )
    {
        int w=( m_msgList->firstChild() ) -> width(  m_msgList->fontMetrics() , m_msgList, m_tCol);
        kDebug() << "new width = " << w << endl;
        m_msgList->setColumnWidth(m_tCol, w);
    }
    return true;
*/
    return KVBox::event(event);
}

void GSLogWindow::append( GSInterpreterLib::MessageType t, const QString &text)
{
    //kDebug() << "Appending: " << text <<endl;
    kDebug() << "last int: " << m_lastInt << endl;
    QStringList l=text.trimmed().split("\n",QString::SkipEmptyParts);
    QStringList::Iterator it=l.begin(), end=l.end();
    while (it!=end)
    {

    QTreeWidgetItem* tmp = 0;
    switch(t)
    {
        case GSInterpreterLib::Error:
            tmp = new QTreeWidgetItem( m_msgList );
            tmp->setText( 0, *it );
            tmp->setIcon( 0, KIcon( "messagebox_critical" ) );
            break;
        case GSInterpreterLib::Input:
            tmp = new QTreeWidgetItem( m_msgList );
            tmp->setText( 0, *it );
            tmp->setIcon( 0, KIcon( "1leftarrow" ) );
            break;
        case GSInterpreterLib::Output:
            tmp = new QTreeWidgetItem( m_msgList );
            tmp->setText( 0, *it );
            tmp->setIcon( 0, KIcon( "1rightarrow" ) );
            break;
    }
    ++it;
    }
}

void GSLogWindow::append( GSInterpreterLib::MessageType t, const char* buf, int num )
{
    // ghostscript splits messages longer then 128 to chunks, handle this properly
    if (m_lastInt == 128)
    {
        kDebug() << "last was full line" << endl;
        if (t==m_buffer.first)
        {
            kDebug() << "appending to buffer" << endl;
            m_buffer.second +=QString::fromLocal8Bit( buf, num );
        }
        else
        {
            kDebug() << "appending from buffer" << endl;
            // sets m_lastInt to 0
            appendBuffered();
        }
    }

    if (num==128)
    {
        kDebug() << "this is full line" << endl;
        if (m_lastInt != 128)
        {
            kDebug() << "appending to buffer" << endl;
            m_buffer.first=t;
            m_buffer.second=QString::fromLocal8Bit( buf, num );
        }
        m_clearTimer.stop();
        m_clearTimer.start(20);
    }
    else
    {
        kDebug() << "this is normal line" << endl;
        if (m_lastInt == 128)
        {
            kDebug() << "appending from buffer" << endl;
            appendBuffered();
        }
        else
        {
            kDebug() << "appending directly" << endl;
            append(t,QString::fromLocal8Bit( buf, num ));
            m_clearTimer.stop();
        }
    }
    m_lastInt=num;

    //    kDebug()<< "LogWindow before split: " << msgString << " length: " << num << endl;

}

void GSLogWindow::clear()
{
    m_msgList ->clear();
}

#include "gvlogwindow.moc"