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110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
/* ============================================================
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* QupZilla - WebKit based browser
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* Copyright (C) 2010-2012 David Rosca <nowrep@gmail.com>
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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 3 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
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* GNU 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. If not, see <http://www.gnu.org/licenses/>.
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* ============================================================ */
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#include "pagescreen.h"
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#include "ui_pagescreen.h"
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#include "tabbedwebview.h"
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#include "globalfunctions.h"
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#include <QFileDialog>
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#include <QWebFrame>
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#include <QTimer>
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#include <QMovie>
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#include <QtConcurrentRun>
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#include <QPushButton>
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PageScreen::PageScreen(WebView* view, QWidget* parent)
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: QDialog(parent)
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, ui(new Ui::PageScreen)
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, m_view(view)
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, m_imageScaling(0)
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, m_horizontalScrollbarSize(0)
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, m_verticalScrollbarSize(0)
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{
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setAttribute(Qt::WA_DeleteOnClose);
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ui->setupUi(this);
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QMovie* mov = new QMovie(":html/loading.gif");
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ui->label->setMovie(mov);
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mov->start();
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m_pageTitle = m_view->title();
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connect(ui->buttonBox->button(QDialogButtonBox::Save), SIGNAL(clicked()), this, SLOT(dialogAccepted()));
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connect(ui->buttonBox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()), this, SLOT(close()));
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QTimer::singleShot(200, this, SLOT(createThumbnail()));
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}
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void PageScreen::dialogAccepted()
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{
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const QString &path = QFileDialog::getSaveFileName(this, tr("Save Page Screen..."),
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QString("%1.png").arg(qz_filterCharsFromFilename(m_pageTitle)));
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if (!path.isEmpty()) {
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m_pageImage.save(path);
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close();
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}
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}
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void PageScreen::createThumbnail()
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{
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QWebPage* page = m_view->page();
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QSize originalSize = page->viewportSize();
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page->setViewportSize(page->mainFrame()->contentsSize());
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m_pageImage = QImage(page->viewportSize(), QImage::Format_ARGB32_Premultiplied);
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QPainter painter(&m_pageImage);
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page->mainFrame()->render(&painter);
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painter.end();
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m_verticalScrollbarSize = page->mainFrame()->scrollBarGeometry(Qt::Vertical).width();
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m_horizontalScrollbarSize = page->mainFrame()->scrollBarGeometry(Qt::Horizontal).height();
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page->setViewportSize(originalSize);
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m_imageScaling = new QFutureWatcher<QImage>(this);
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connect(m_imageScaling, SIGNAL(finished()), SLOT(showImage()));
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m_imageScaling->setFuture(QtConcurrent::run(this, &PageScreen::scaleImage));
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}
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QImage PageScreen::scaleImage()
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{
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if (m_verticalScrollbarSize > 0 || m_horizontalScrollbarSize > 0) {
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QRect newRect = m_pageImage.rect();
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newRect.setWidth(newRect.width() - m_verticalScrollbarSize);
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newRect.setHeight(newRect.height() - m_horizontalScrollbarSize);
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m_pageImage = m_pageImage.copy(newRect);
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}
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return m_pageImage.scaledToWidth(450, Qt::SmoothTransformation);
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}
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void PageScreen::showImage()
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{
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delete ui->label->movie();
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ui->label->setPixmap(QPixmap::fromImage(m_imageScaling->result()));
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}
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PageScreen::~PageScreen()
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{
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delete ui;
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}
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