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/***************************************************************************
* copyright : (C) 2009-2019 by Pascal Brachet *
* *
* 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 "linenumberwidget.h"
#include <QTextDocument>
#include <QTextCursor>
#include <QTextEdit>
#include <QTextBlock>
#include <QScrollBar>
LineNumberWidget::LineNumberWidget(AlgoEditor* editor, QWidget* parent)
: QWidget( parent) ,
m_editor( editor )
{
setAutoFillBackground( true );
QPalette p( palette() );
p.setColor( backgroundRole(), QColor( "#DEE4EB" ) );
setPalette( p );
setToolTip(QString::fromUtf8("Cliquer pour ajouter un signet"));
connect( m_editor->verticalScrollBar(), SIGNAL( valueChanged( int ) ), this, SLOT( update() ) );
connect( m_editor, SIGNAL( textChanged() ), this, SLOT( update() ) );
}
LineNumberWidget::~LineNumberWidget()
{
}
void LineNumberWidget::paintEvent( QPaintEvent* /*e*/ )
{
int max=0;
int l=0;
QPainter painter( this );
painter.setFont(numfont);
const QFontMetrics fm(numfont);
int yOffset = m_editor->verticalScrollBar()->value();
QTextDocument *doc = m_editor->document();
int i = 1;
QTextBlock p = doc->begin();
QString numtext;
const QBrush oldbrush=painter.brush();
QPen oldpen(QColor("#136872"));
oldpen.setStyle(Qt::SolidLine);
painter.setPen(oldpen);
painter.drawLine(width()-2,0,width()-2,height());
while ( p.isValid() )
{
QPointF point = p.layout()->position();
if ( point.y() + 20 - yOffset < 0 )
{
i++;
p = p.next();
continue;
}
if ( (int)(point.y()) - yOffset > height() ) break;
for (int j = 0; j < 3; ++j)
{
if (m_editor->UserBookmark[j]==i)
{
const QBrush brush(QColor("#1B8EA6"));
painter.fillRect(2, (int)(point.y()) - yOffset,fm.width("0")+6,fm.lineSpacing(), brush);
const QPen pen(QColor("#FFFFFF"));
painter.setPen(pen);
painter.drawText(4, (int)(point.y()) - yOffset,width()-4,fm.lineSpacing(),Qt::AlignLeft | Qt::AlignTop,QString::number(j+1));
}
}
painter.setPen(oldpen);
numtext=QString::number(i);
painter.drawText(0, (int)(point.y()) - yOffset,width()-4,fm.lineSpacing(),Qt::AlignRight | Qt::AlignTop,numtext);
l= fm.width(numtext)+18+fm.width("0");
if (l>max) max=l;
i++;
p = p.next();
}
if (i>=10000) setFixedWidth(max);
painter.end();
}
void LineNumberWidget::mousePressEvent(QMouseEvent *e)
{
e->accept();
QPoint p = m_editor->viewport()->mapFromGlobal(e->globalPos());
QTextCursor cur( m_editor->cursorForPosition(p) );
int i = m_editor->linefromblock(cur.block());
if ( i==-1 ) return;
for (int j = 0; j < 3; ++j)
{
if (m_editor->UserBookmark[j]==i)
{
m_editor->UserBookmark[j]=0;
update();
return;
}
}
for (int j = 0; j < 3; ++j)
{
if (m_editor->UserBookmark[j]==0)
{
m_editor->UserBookmark[j]=i;
update();
return;
}
}
}
void LineNumberWidget::setFont(QFont efont)
{
numfont=efont;
}
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