151 lines
3.7 KiB
C++
151 lines
3.7 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "view.h"
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#include "spinner.h"
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#include "networkaccessmanager.h"
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#include "settings.h"
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#include "textbrowser.h"
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#include <QLabel>
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#include <QImage>
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#include <QPixmap>
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#include <QBoxLayout>
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#include <QNetworkReply>
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#include <QLocale>
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#include <QBuffer>
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#include <QFile>
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static QString headerTag;
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QString View::subTag;
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static QString encode(const QImage &img)
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{
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QByteArray bytes;
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QBuffer buffer(&bytes);
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buffer.open(QIODevice::WriteOnly);
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img.save(&buffer, "PNG");
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return QString("<img src=\"data:image/png;base64,%1\"><br><br>").arg(QString(buffer.data().toBase64()));
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}
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void View::initHeaderTags()
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{
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bool small=Settings::self()->wikipediaIntroOnly() ;
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headerTag=small ? "h2" : "h1";
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subTag=small ? "h3" : "h2";
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}
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View::View(QWidget *parent)
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: QWidget(parent)
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, needToUpdate(false)
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, spinner(0)
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{
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QVBoxLayout *layout=new QVBoxLayout(this);
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layout->setAlignment(Qt::AlignTop | Qt::AlignLeft);
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header=new QLabel(this);
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text=new TextBrowser(this);
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layout->setMargin(0);
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header->setWordWrap(true);
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header->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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text->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
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layout->addWidget(header);
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layout->addWidget(text);
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layout->addItem(new QSpacerItem(1, fontMetrics().height()/4, QSizePolicy::Fixed, QSizePolicy::Fixed));
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text->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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text->setOpenLinks(false);
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setEditable(false);
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if (headerTag.isEmpty()) {
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initHeaderTags();
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}
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}
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void View::clear()
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{
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setHeader(stdHeader);
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text->clear();
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}
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void View::setHeader(const QString &str)
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{
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header->setText("<"+headerTag+">"+str+"</"+headerTag+">");
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}
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void View::setPicSize(const QSize &sz)
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{
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text->setPicSize(sz);
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}
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QString View::createPicTag(const QImage &img, const QString &file)
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{
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if (img.isNull()) {
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return QString();
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}
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if (!file.isEmpty() && QFile::exists(file)) {
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return QString("<img src=\"%1\"><br><br>").arg(file);
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}
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// No filename given, or file does not exist - therefore ecnode & scale image.
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return encode(img.scaled(text->picSize(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
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}
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void View::showEvent(QShowEvent *e)
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{
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if (needToUpdate) {
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update(currentSong, true);
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}
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needToUpdate=false;
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QWidget::showEvent(e);
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}
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void View::showSpinner()
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{
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if (!spinner) {
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spinner=new Spinner(this);
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spinner->setWidget(this);
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}
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if (!spinner->isActive()) {
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spinner->start();
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}
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}
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void View::hideSpinner()
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{
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if (spinner) {
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spinner->stop();
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}
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}
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void View::setEditable(bool e)
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{
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text->setReadOnly(!e);
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text->setFrameShape(e ? QFrame::StyledPanel : QFrame::NoFrame);
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text->viewport()->setAutoFillBackground(e);
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}
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void View::searchResponse(const QString &r, const QString &l)
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{
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Q_UNUSED(l)
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text->setText(r);
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}
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