2017-04-28 14:56:45 +03:00
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/*
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* nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
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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 <QBrush>
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#include <QDebug>
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#include <QDesktopServices>
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#include <QFileInfo>
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#include <QPainter>
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#include <QPixmap>
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#include "ImageItem.h"
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2017-04-30 01:55:10 +03:00
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#include "ImageOverlayDialog.h"
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namespace events = matrix::events;
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namespace msgs = matrix::events::messages;
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ImageItem::ImageItem(QSharedPointer<MatrixClient> client,
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const events::MessageEvent<msgs::Image> &event,
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QWidget *parent)
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: QWidget(parent)
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, event_{ event }
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, client_{ client }
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{
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setMouseTracking(true);
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setCursor(Qt::PointingHandCursor);
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setAttribute(Qt::WA_Hover, true);
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url_ = event.msgContent().url();
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text_ = event.content().body();
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QList<QString> url_parts = url_.toString().split("mxc://");
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if (url_parts.size() != 2) {
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qDebug() << "Invalid format for image" << url_.toString();
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return;
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}
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QString media_params = url_parts[1];
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url_ = QString("%1/_matrix/media/r0/download/%2")
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.arg(client_.data()->getHomeServer().toString(), media_params);
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client_.data()->downloadImage(event.eventId(), url_);
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connect(client_.data(),
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SIGNAL(imageDownloaded(const QString &, const QPixmap &)),
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this,
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SLOT(imageDownloaded(const QString &, const QPixmap &)));
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}
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ImageItem::ImageItem(QSharedPointer<MatrixClient> client,
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const QString &url,
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const QString &filename,
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QWidget *parent)
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: QWidget(parent)
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, url_{ url }
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, text_{ QFileInfo(filename).fileName() }
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, client_{ client }
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{
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setMouseTracking(true);
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setCursor(Qt::PointingHandCursor);
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setAttribute(Qt::WA_Hover, true);
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QList<QString> url_parts = url_.toString().split("mxc://");
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if (url_parts.size() != 2) {
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qDebug() << "Invalid format for image" << url_.toString();
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return;
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}
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QString media_params = url_parts[1];
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url_ = QString("%1/_matrix/media/r0/download/%2")
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.arg(client_.data()->getHomeServer().toString(), media_params);
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setImage(QPixmap(filename));
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}
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void
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ImageItem::imageDownloaded(const QString &event_id, const QPixmap &img)
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{
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if (event_id != event_.eventId())
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return;
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setImage(img);
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}
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void
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ImageItem::openUrl()
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{
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if (url_.toString().isEmpty())
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return;
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if (!QDesktopServices::openUrl(url_))
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qWarning() << "Could not open url" << url_.toString();
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}
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void
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ImageItem::scaleImage()
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{
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if (image_.isNull())
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return;
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auto width_ratio = (double)max_width_ / (double)image_.width();
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auto height_ratio = (double)max_height_ / (double)image_.height();
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auto min_aspect_ratio = std::min(width_ratio, height_ratio);
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if (min_aspect_ratio > 1) {
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width_ = image_.width();
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height_ = image_.height();
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} else {
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width_ = image_.width() * min_aspect_ratio;
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height_ = image_.height() * min_aspect_ratio;
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}
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setFixedSize(width_, height_);
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scaled_image_ =
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image_.scaled(width_, height_, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
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}
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QSize
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ImageItem::sizeHint() const
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{
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if (image_.isNull())
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return QSize(max_width_, bottom_height_);
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return QSize(width_, height_);
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}
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void
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ImageItem::setImage(const QPixmap &image)
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{
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image_ = image;
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scaleImage();
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update();
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}
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void
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ImageItem::mousePressEvent(QMouseEvent *event)
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{
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if (event->button() != Qt::LeftButton)
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return;
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if (image_.isNull()) {
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openUrl();
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return;
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}
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auto point = event->pos();
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// Click on the text box.
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if (QRect(0, height_ - bottom_height_, width_, bottom_height_).contains(point)) {
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openUrl();
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} else {
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auto image_dialog = new ImageOverlayDialog(image_, this);
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image_dialog->show();
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}
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}
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void
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ImageItem::resizeEvent(QResizeEvent *event)
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{
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Q_UNUSED(event);
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scaleImage();
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}
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void
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ImageItem::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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QFont font("Open Sans");
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font.setPixelSize(12);
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QFontMetrics metrics(font);
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int fontHeight = metrics.height();
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if (image_.isNull()) {
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int height = fontHeight + 10;
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QString elidedText = metrics.elidedText(text_, Qt::ElideRight, max_width_ - 10);
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setFixedSize(metrics.width(elidedText), fontHeight + 10);
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painter.setFont(font);
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painter.setPen(QPen(QColor(66, 133, 244)));
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painter.drawText(QPoint(0, height / 2 + 2), elidedText);
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return;
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}
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painter.fillRect(QRect(0, 0, width_, height_), scaled_image_);
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if (underMouse()) {
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// Bottom text section
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painter.fillRect(QRect(0, height_ - bottom_height_, width_, bottom_height_),
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QBrush(QColor(33, 33, 33, 128)));
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QString elidedText = metrics.elidedText(text_, Qt::ElideRight, width_ - 10);
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font.setWeight(80);
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painter.setFont(font);
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painter.setPen(QPen(QColor("white")));
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painter.drawText(QPoint(5, height_ - fontHeight / 2), elidedText);
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}
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}
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