103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2006-2009 fullmetalcoder <fullmetalcoder@hotmail.fr>
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**
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** This file is part of the Edyuk project <http://edyuk.org>
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**
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** This file may be used under the terms of the GNU General Public License
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** version 3 as published by the Free Software Foundation and appearing in the
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** file GPL.txt included in the packaging of this file.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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****************************************************************************/
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#include "qlinechangepanel.h"
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/*!
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\file qlinechangepanel.cpp
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\brief Implementation of the QLineChangePanel class.
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*/
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#include "qeditor.h"
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#include "qdocument.h"
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#include "qdocumentline.h"
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#include <QContextMenuEvent>
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#include <QIcon>
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#include <QMenu>
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#include <QPainter>
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#include <QScrollBar>
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/*!
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\ingroup widgets
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@{
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*/
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/*!
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\class QLineMarkPanel
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\brief A specific panel in charge of drawing line numbers of an editor
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\see QEditorInterface
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*/
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QCE_AUTO_REGISTER(QLineChangePanel)
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/*!
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\brief Constructor
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*/
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QLineChangePanel::QLineChangePanel(QWidget *p) : QPanel(p) { setFixedWidth(4); }
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/*!
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\brief Empty destructor
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*/
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QLineChangePanel::~QLineChangePanel() {}
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/*!
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*/
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QString QLineChangePanel::type() const { return "Line changes"; }
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/*!
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\internal
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*/
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void QLineChangePanel::paint(QPainter *p, QEditor *e) {
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if (!e || !e->document())
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return;
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const QFontMetrics fm(e->document()->font());
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int n, posY, as = fm.ascent(), ls = fm.lineSpacing(),
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pageBottom = e->viewport()->height(),
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contentsY = e->verticalOffset();
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QDocument *d = e->document();
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n = d->lineNumber(contentsY);
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posY = 2 + d->y(n) - contentsY;
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for (;; ++n) {
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// qDebug("n = %i; pos = %i", n, posY);
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QDocumentLine line = d->line(n);
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if (line.isNull() || ((posY - as) > pageBottom))
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break;
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if (line.isHidden())
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continue;
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int span = line.lineSpan();
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if (d->isLineModified(line)) {
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p->fillRect(1, posY, 2, ls * span, Qt::red);
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} else if (d->hasLineEverBeenModified(line)) {
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p->fillRect(1, posY, 2, ls * span, Qt::green);
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}
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posY += ls * span;
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}
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}
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/*! @} */
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