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** This file is part of the examples of the Qt Toolkit.
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#include <QtGui>

#include "logEditor.h"


logEditor::logEditor(QWidget *parent) : QPlainTextEdit(parent)
{
    lineNumberArea = new LineNumberArea(this);

    connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
    connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));

    updateLineNumberAreaWidth(0);
    highlightCurrentLine();
    isUpdating=false;
}
void logEditor::setIsUpdating(bool updating)
{
    isUpdating=updating;
    if(updating)
    { qDebug()<<"disco";
        disconnect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
        disconnect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
        disconnect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
    } else { qDebug()<<"coco";
        connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
        connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
        connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
    }
}



bool logEditor::event(QEvent *event)
{
    if (event->type() == QEvent::ToolTip)
        {
               /* QHelpEvent* helpEvent = static_cast <QHelpEvent*>(event);
                QPoint adjustedPos=helpEvent->pos();
                adjustedPos.setX(adjustedPos.x()-lineNumberAreaWidth());
                QTextCursor cursor = cursorForPosition(adjustedPos);
                cursor.select(QTextCursor::WordUnderCursor);
                QToolTip::showText(helpEvent->globalPos(), cursor.selectedText());*/

                processTooltip(static_cast <QHelpEvent*>(event)->pos(),static_cast <QHelpEvent*>(event)->globalPos());
                return true;
        }

        return QPlainTextEdit::event(event);
}


int logEditor::lineNumberAreaWidth()
{
    int digits = 1;
    int max = qMax(1, blockCount());
    while (max >= 10) {
        max /= 10;
        ++digits;
    }

    int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;

    return space;
}

void logEditor::processTooltip(QPoint pos, QPoint globalpos)
{
    QPoint adjustedPos=pos;
   // adjustedPos.setX(adjustedPos.x()-lineNumberAreaWidth());
    QTextCursor cursor = cursorForPosition(adjustedPos);
    cursor.select(QTextCursor::WordUnderCursor);
    QToolTip::showText(globalpos, cursor.selectedText());

}

void logEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
{
    qDebug()<<"updateLineNumberAreaWidth";
    setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
}



void logEditor::updateLineNumberArea(const QRect &rect, int dy)
{
        qDebug()<<"updateLineNumberArea";
    if (dy)
        lineNumberArea->scroll(0, dy);
    else
        lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height());

    if (rect.contains(viewport()->rect()))
        updateLineNumberAreaWidth(0);
}



void logEditor::resizeEvent(QResizeEvent *e)
{
    QPlainTextEdit::resizeEvent(e);

    QRect cr = contentsRect();
    lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
}



void logEditor::highlightCurrentLine()
{

    qDebug()<<"highlightCurrentLine";
    QList<QTextEdit::ExtraSelection> extraSelections;

    if (!isReadOnly()) {
        QTextEdit::ExtraSelection selection;

        QColor lineColor = QColor(Qt::yellow).lighter(160);

        selection.format.setBackground(lineColor);
        selection.format.setProperty(QTextFormat::FullWidthSelection, true);
        selection.cursor = textCursor();
        selection.cursor.clearSelection();
        extraSelections.append(selection);
    }

    setExtraSelections(extraSelections);
}



void logEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
    if(isUpdating) {qDebug() << "skipped da fuck"; return;  }
    qDebug() << "Painting da fuck";
    QPainter painter(lineNumberArea);
    painter.fillRect(event->rect(), Qt::lightGray);


    QTextBlock block = firstVisibleBlock();
    int blockNumber = block.blockNumber();
    int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
    int bottom = top + (int) blockBoundingRect(block).height();

    while (block.isValid() && top <= event->rect().bottom()) {
        if (block.isVisible() && bottom >= event->rect().top()) {
            QString number = QString::number(blockNumber + 1);
            painter.setPen(Qt::black);
            painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
                             Qt::AlignCenter, number);
        }

        block = block.next();
        top = bottom;
        bottom = top + (int) blockBoundingRect(block).height();
        ++blockNumber;
    }
}

void logEditor::dropEvent(QDropEvent *de)
{
    // Unpack dropped data and handle it the way you want
    const QMimeData* mimeData = de->mimeData();

       // check for our needed mime type, here a file or a list of files
       if (mimeData->hasUrls())
       {
           QList<QUrl> urlList = mimeData->urls();
           // extract the local paths of the files
           for (int i = 0; i < urlList.size(); ++i)
           {
               QFile file(urlList.at(i).toLocalFile());
               if (!file.open (QIODevice::ReadOnly))
                    return;

               QTextStream stream ( &file );
               //QString line;
               setIsUpdating();
               while( !stream.atEnd() ) {
                    //line = stream.readLine();
                    this->appendPlainText(stream.readLine());
               }
               file.close(); // when your done.
               setIsUpdating(false);
           }

       }
     /*  QFont fnt = this->font() ;
       fnt.setPointSize(24) ;
       QTextDocument* doc = this->document() ;
       QTextCharFormat test_fmt ;
       QPen pen_out(Qt::DashLine) ;
       QBrush bred (Qt::red);
       test_fmt.setFontUnderline(true);
       test_fmt.setUnderlineStyle(QTextCharFormat::WaveUnderline);
       test_fmt.setTextOutline(pen_out) ;
       test_fmt.setForeground(bred);
       test_fmt.setFont(fnt);

       QTextCursor curseur(doc) ;
       curseur.movePosition(QTextCursor::Start) ;
       curseur.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor) ;
       curseur.setCharFormat(test_fmt) ;
       //fnt.setPointSize(12);
      // curseur.movePosition(QTextCursor::Start) ;
    qDebug("Contents: %s", de->mimeData()->text().toLatin1().data());*/
}

void logEditor::dragMoveEvent(QDragMoveEvent *de)
{
    // The event needs to be accepted here
    de->accept();
}

void logEditor::dragEnterEvent(QDragEnterEvent *event)
{
    // Set the drop action to be the proposed action.
    event->acceptProposedAction();
}