strawberry-audio-player-win.../src/widgets/infotextview.cpp

90 lines
2.5 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
*
* Strawberry 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 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <QWidget>
#include <QApplication>
#include <QMenu>
#include <QWheelEvent>
#include <QRegularExpression>
#include <QtDebug>
#include "core/logging.h"
#include "infotextview.h"
InfoTextView::InfoTextView(QWidget *parent) : QTextBrowser(parent), last_width_(-1), recursion_filter_(false) {
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setOpenExternalLinks(true);
}
void InfoTextView::resizeEvent(QResizeEvent *e) {
const int w = qMax(100, width());
if (w == last_width_) return;
last_width_ = w;
document()->setTextWidth(w);
setMinimumHeight(document()->size().height());
QTextBrowser::resizeEvent(e);
}
QSize InfoTextView::sizeHint() const { return minimumSize(); }
void InfoTextView::wheelEvent(QWheelEvent *e) { e->ignore(); }
void InfoTextView::SetHtml(const QString &html) {
QString copy(html.trimmed());
// Simplify newlines
copy.replace(QRegularExpression("\\r\\n?"), "\n");
// Convert two or more newlines to <p>, convert single newlines to <br>
copy.replace(QRegularExpression("([^>])([\\t ]*\\n){2,}"), "\\1<p>");
copy.replace(QRegularExpression("([^>])[\\t ]*\\n"), "\\1<br>");
// Strip any newlines from the end
copy.replace(QRegularExpression("((<\\s*br\\s*/?\\s*>)|(<\\s*/?\\s*p\\s*/?\\s*>))+$"), "");
setHtml(copy);
}
// Prevents QTextDocument from trying to load remote images before they are ready.
QVariant InfoTextView::loadResource(int type, const QUrl &name) {
if (recursion_filter_) {
recursion_filter_ = false;
return QVariant();
}
recursion_filter_ = true;
if (type == QTextDocument::ImageResource && name.scheme() == "http") {
if (document()->resource(type, name).isNull()) {
return QVariant();
}
}
return QTextBrowser::loadResource(type, name);
}