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/*
* nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QBrush>
#include <QDesktopServices>
#include <QFileDialog>
#include <QFileInfo>
#include <QPainter>
#include <QPixmap>
#include <QUuid>
#include "Config.h"
#include "Logging.hpp"
#include "MatrixClient.h"
#include "Utils.h"
#include "dialogs/ImageOverlay.h"
#include "timeline/widgets/ImageItem.h"
void
ImageItem::downloadMedia(const QUrl &url)
{
http::client()->download(url.toString().toStdString(),
[this, url](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn(
"failed to retrieve image {}: {} {}",
url.toString().toStdString(),
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
QPixmap img;
img.loadFromData(QByteArray(data.data(), data.size()));
emit imageDownloaded(img);
});
}
void
ImageItem::saveImage(const QString &filename, const QByteArray &data)
{
try {
QFile file(filename);
if (!file.open(QIODevice::WriteOnly))
return;
file.write(data);
file.close();
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
}
void
ImageItem::init()
{
setMouseTracking(true);
setCursor(Qt::PointingHandCursor);
setAttribute(Qt::WA_Hover, true);
connect(this, &ImageItem::imageDownloaded, this, &ImageItem::setImage);
connect(this, &ImageItem::imageSaved, this, &ImageItem::saveImage);
downloadMedia(url_);
}
ImageItem::ImageItem(const mtx::events::RoomEvent<mtx::events::msg::Image> &event, QWidget *parent)
: QWidget(parent)
, event_{event}
{
url_ = QString::fromStdString(event.content.url);
text_ = QString::fromStdString(event.content.body);
init();
}
ImageItem::ImageItem(const QString &url, const QString &filename, uint64_t size, QWidget *parent)
: QWidget(parent)
, url_{url}
, text_{filename}
{
Q_UNUSED(size);
init();
}
void
ImageItem::openUrl()
{
if (url_.toString().isEmpty())
return;
auto urlToOpen = utils::mxcToHttp(
url_, QString::fromStdString(http::client()->server()), http::client()->port());
if (!QDesktopServices::openUrl(urlToOpen))
nhlog::ui()->warn("could not open url: {}", urlToOpen.toStdString());
}
QSize
ImageItem::sizeHint() const
{
if (image_.isNull())
return QSize(max_width_, bottom_height_);
return QSize(width_, height_);
}
void
ImageItem::setImage(const QPixmap &image)
{
image_ = image;
scaled_image_ = utils::scaleDown<QPixmap>(max_width_, max_height_, image_);
width_ = scaled_image_.width();
height_ = scaled_image_.height();
setFixedSize(width_, height_);
update();
}
void
ImageItem::mousePressEvent(QMouseEvent *event)
{
if (!isInteractive_) {
event->accept();
return;
}
if (event->button() != Qt::LeftButton)
return;
if (image_.isNull()) {
openUrl();
return;
}
if (textRegion_.contains(event->pos())) {
openUrl();
} else {
auto imgDialog = new dialogs::ImageOverlay(image_);
imgDialog->show();
}
}
void
ImageItem::resizeEvent(QResizeEvent *event)
{
if (!image_)
return QWidget::resizeEvent(event);
scaled_image_ = utils::scaleDown<QPixmap>(max_width_, max_height_, image_);
width_ = scaled_image_.width();
height_ = scaled_image_.height();
setFixedSize(width_, height_);
}
void
ImageItem::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
QFont font("Open Sans");
font.setPixelSize(conf::fontSize);
QFontMetrics metrics(font);
const int fontHeight = metrics.height() + metrics.ascent();
if (image_.isNull()) {
QString elidedText = metrics.elidedText(text_, Qt::ElideRight, max_width_ - 10);
setFixedSize(metrics.width(elidedText), fontHeight);
painter.setFont(font);
painter.setPen(QPen(QColor(66, 133, 244)));
painter.drawText(QPoint(0, fontHeight / 2), elidedText);
return;
}
imageRegion_ = QRectF(0, 0, width_, height_);
QPainterPath path;
path.addRoundedRect(imageRegion_, 5, 5);
painter.setPen(Qt::NoPen);
painter.fillPath(path, scaled_image_);
painter.drawPath(path);
// Bottom text section
if (isInteractive_ && underMouse()) {
const int textBoxHeight = fontHeight / 2 + 6;
textRegion_ = QRectF(0, height_ - textBoxHeight, width_, textBoxHeight);
QPainterPath textPath;
textPath.addRoundedRect(textRegion_, 0, 0);
painter.fillPath(textPath, QColor(40, 40, 40, 140));
QString elidedText = metrics.elidedText(text_, Qt::ElideRight, width_ - 10);
font.setWeight(80);
painter.setFont(font);
painter.setPen(QPen(QColor("white")));
textRegion_.adjust(5, 0, 5, 0);
painter.drawText(textRegion_, Qt::AlignVCenter, elidedText);
}
}
void
ImageItem::saveAs()
{
auto filename = QFileDialog::getSaveFileName(this, tr("Save image"), text_);
if (filename.isEmpty())
return;
const auto url = url_.toString().toStdString();
http::client()->download(
url,
[this, filename, url](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve image {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
emit imageSaved(filename, QByteArray(data.data(), data.size()));
});
}
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