tdesktop/Telegram/SourceFiles/localimageloader.cpp

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/*
This file is part of Telegram Desktop,
an unofficial desktop messaging app, see https://telegram.org
Telegram Desktop 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.
It 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.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014 John Preston, https://tdesktop.com
*/
#include "stdafx.h"
#include "localimageloader.h"
#include "gui/filedialog.h"
#include <libexif/exif-data.h>
LocalImageLoaderPrivate::LocalImageLoaderPrivate(int32 currentUser, LocalImageLoader *loader, QThread *thread) : QObject(0)
, loader(loader)
, user(currentUser)
{
moveToThread(thread);
connect(loader, SIGNAL(needToPrepare()), this, SLOT(prepareImages()));
connect(this, SIGNAL(imageReady()), loader, SLOT(onImageReady()));
connect(this, SIGNAL(imageFailed(quint64)), loader, SLOT(onImageFailed(quint64)));
};
void LocalImageLoaderPrivate::prepareImages() {
QString file, filename, mime;
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int32 filesize = 0;
QImage img;
QByteArray data;
PeerId peer;
uint64 id, jpeg_id = 0;
ToPrepareMediaType type;
{
QMutexLocker lock(loader->toPrepareMutex());
ToPrepareMedias &list(loader->toPrepareMedias());
if (list.isEmpty()) return;
file = list.front().file;
img = list.front().img;
data = list.front().data;
peer = list.front().peer;
id = list.front().id;
type = list.front().type;
}
if (img.isNull()) {
if (!file.isEmpty()) {
QFileInfo info(file);
if (type == ToPrepareAuto) {
QString lower(file.toLower());
const QStringList &photoExtensions(cPhotoExtensions());
for (QStringList::const_iterator i = photoExtensions.cbegin(), e = photoExtensions.cend(); i != e; ++i) {
if (lower.lastIndexOf(*i) == lower.size() - i->size()) {
if (info.size() < MaxUploadPhotoSize) {
type = ToPreparePhoto;
break;
}
}
}
if (type == ToPrepareAuto && info.size() < MaxUploadDocumentSize) {
type = ToPrepareDocument;
}
}
if (type != ToPrepareAuto && info.size() < MaxUploadPhotoSize) {
img = App::readImage(file);
}
if (type == ToPrepareDocument) {
mime = QMimeDatabase().mimeTypeForFile(info).name();
}
filename = info.fileName();
filesize = info.size();
} else if (!data.isEmpty()) {
img = App::readImage(data);
if (type == ToPrepareAuto) {
if (!img.isNull() && data.size() < MaxUploadPhotoSize) {
type = ToPreparePhoto;
} else if (data.size() < MaxUploadDocumentSize) {
type = ToPrepareDocument;
} else {
img = QImage();
}
}
QMimeType mimeType = QMimeDatabase().mimeTypeForData(data);
if (type == ToPrepareDocument) {
mime = mimeType.name();
}
filename = qsl("Document");
QStringList patterns = mimeType.globPatterns();
if (!patterns.isEmpty()) {
filename = patterns.front().replace('*', filename);
}
filesize = data.size();
}
} else {
if (type == ToPrepareDocument) {
filename = filedialogDefaultName(qsl("image"), qsl(".png"), QString(), true);
QMimeType mimeType = QMimeDatabase().mimeTypeForName("image/png");
data = QByteArray();
{
QBuffer b(&data);
img.save(&b, "PNG");
}
filesize = data.size();
} else {
type = ToPreparePhoto; // only photo from QImage
filename = qsl("Untitled.jpg");
filesize = 0;
}
}
if ((img.isNull() && (type != ToPrepareDocument || !filesize)) || type == ToPrepareAuto || (img.isNull() && file.isEmpty() && data.isEmpty())) { // if could not decide what type
{
QMutexLocker lock(loader->toPrepareMutex());
ToPrepareMedias &list(loader->toPrepareMedias());
list.pop_front();
}
QTimer::singleShot(1, this, SLOT(prepareImages()));
emit imageFailed(id);
} else {
PreparedPhotoThumbs photoThumbs;
QVector<MTPPhotoSize> photoSizes;
MTPPhotoSize thumb(MTP_photoSizeEmpty(MTP_string("")));
MTPPhoto photo(MTP_photoEmpty(MTP_long(0)));
MTPDocument document(MTP_documentEmpty(MTP_long(0)));
QByteArray jpeg;
if (type == ToPreparePhoto) {
int32 w = img.width(), h = img.height();
QPixmap thumb = (w > 100 || h > 100) ? QPixmap::fromImage(img.scaled(100, 100, Qt::KeepAspectRatio, Qt::SmoothTransformation)) : QPixmap::fromImage(img);
photoThumbs.insert('s', thumb);
photoSizes.push_back(MTP_photoSize(MTP_string("s"), MTP_fileLocationUnavailable(MTP_long(0), MTP_int(0), MTP_long(0)), MTP_int(thumb.width()), MTP_int(thumb.height()), MTP_int(0)));
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QPixmap medium = (w > 320 || h > 320) ? QPixmap::fromImage(img.scaled(320, 320, Qt::KeepAspectRatio, Qt::SmoothTransformation)) : QPixmap::fromImage(img);
photoThumbs.insert('m', medium);
photoSizes.push_back(MTP_photoSize(MTP_string("m"), MTP_fileLocationUnavailable(MTP_long(0), MTP_int(0), MTP_long(0)), MTP_int(medium.width()), MTP_int(medium.height()), MTP_int(0)));
QPixmap full = (w > 800 || h > 800) ? QPixmap::fromImage(img.scaled(800, 800, Qt::KeepAspectRatio, Qt::SmoothTransformation)) : QPixmap::fromImage(img);
photoThumbs.insert('x', full);
photoSizes.push_back(MTP_photoSize(MTP_string("x"), MTP_fileLocationUnavailable(MTP_long(0), MTP_int(0), MTP_long(0)), MTP_int(full.width()), MTP_int(full.height()), MTP_int(0)));
{
QBuffer jpegBuffer(&jpeg);
full.save(&jpegBuffer, "JPG", 87);
}
if (!filesize) filesize = jpeg.size();
photo = MTP_photo(MTP_long(id), MTP_long(0), MTP_int(user), MTP_int(unixtime()), MTP_string(""), MTP_geoPointEmpty(), MTP_vector<MTPPhotoSize>(photoSizes));
jpeg_id = id;
} else if ((type == ToPrepareVideo || type == ToPrepareDocument) && !img.isNull()) {
int32 w = img.width(), h = img.height();
QPixmap full = (w > 90 || h > 90) ? QPixmap::fromImage(img.scaled(90, 90, Qt::KeepAspectRatio, Qt::SmoothTransformation)) : QPixmap::fromImage(img);
{
QBuffer jpegBuffer(&jpeg);
full.save(&jpegBuffer, "JPG", 87);
}
photoThumbs.insert('0', full);
thumb = MTP_photoSize(MTP_string(""), MTP_fileLocationUnavailable(MTP_long(0), MTP_int(0), MTP_long(0)), MTP_int(full.width()), MTP_int(full.height()), MTP_int(0));
jpeg_id = MTP::nonce<uint64>();
}
if (type == ToPrepareDocument) {
document = MTP_document(MTP_long(id), MTP_long(0), MTP_int(MTP::authedId()), MTP_int(unixtime()), MTP_string(filename), MTP_string(mime), MTP_int(filesize), thumb, MTP_int(MTP::maindc()));
}
{
QMutexLocker lock(loader->readyMutex());
loader->readyList().push_back(ReadyLocalMedia(type, file, filename, filesize, data, id, jpeg_id, peer, photo, photoThumbs, document, jpeg));
}
{
QMutexLocker lock(loader->toPrepareMutex());
ToPrepareMedias &list(loader->toPrepareMedias());
list.pop_front();
}
QTimer::singleShot(1, this, SLOT(prepareImages()));
emit imageReady();
}
}
LocalImageLoaderPrivate::~LocalImageLoaderPrivate() {
loader = 0;
}
LocalImageLoader::LocalImageLoader(QObject *parent) : QObject(parent), thread(0), priv(0) {
}
void LocalImageLoader::append(const QStringList &files, const PeerId &peer, ToPrepareMediaType t) {
{
QMutexLocker lock(toPrepareMutex());
for (QStringList::const_iterator i = files.cbegin(), e = files.cend(); i != e; ++i) {
toPrepare.push_back(ToPrepareMedia(*i, peer, t));
}
}
if (!thread) {
thread = new QThread();
priv = new LocalImageLoaderPrivate(MTP::authedId(), this, thread);
thread->start();
}
emit needToPrepare();
}
PhotoId LocalImageLoader::append(const QByteArray &img, const PeerId &peer, ToPrepareMediaType t) {
PhotoId result = 0;
{
QMutexLocker lock(toPrepareMutex());
toPrepare.push_back(ToPrepareMedia(img, peer, t));
result = toPrepare.back().id;
}
if (!thread) {
thread = new QThread();
priv = new LocalImageLoaderPrivate(MTP::authedId(), this, thread);
thread->start();
}
emit needToPrepare();
return result;
}
PhotoId LocalImageLoader::append(const QImage &img, const PeerId &peer, ToPrepareMediaType t) {
PhotoId result = 0;
{
QMutexLocker lock(toPrepareMutex());
toPrepare.push_back(ToPrepareMedia(img, peer, t));
result = toPrepare.back().id;
}
if (!thread) {
thread = new QThread();
priv = new LocalImageLoaderPrivate(MTP::authedId(), this, thread);
thread->start();
}
emit needToPrepare();
return result;
}
PhotoId LocalImageLoader::append(const QString &file, const PeerId &peer, ToPrepareMediaType t) {
PhotoId result = 0;
{
QMutexLocker lock(toPrepareMutex());
toPrepare.push_back(ToPrepareMedia(file, peer, t));
result = toPrepare.back().id;
}
if (!thread) {
thread = new QThread();
priv = new LocalImageLoaderPrivate(MTP::authedId(), this, thread);
thread->start();
}
emit needToPrepare();
return result;
}
void LocalImageLoader::onImageReady() {
{
QMutexLocker lock(toPrepareMutex());
if (toPrepare.isEmpty()) {
if (priv) priv->deleteLater();
priv = 0;
if (thread) thread->deleteLater();
thread = 0;
}
}
emit imageReady();
}
void LocalImageLoader::onImageFailed(quint64 id) {
{
QMutexLocker lock(toPrepareMutex());
if (toPrepare.isEmpty()) {
if (priv) priv->deleteLater();
priv = 0;
if (thread) thread->deleteLater();
thread = 0;
}
}
emit imageFailed(id);
}
QMutex *LocalImageLoader::readyMutex() {
return &readyLock;
}
ReadyLocalMedias &LocalImageLoader::readyList() {
return ready;
}
QMutex *LocalImageLoader::toPrepareMutex() {
return &toPrepareLock;
}
ToPrepareMedias &LocalImageLoader::toPrepareMedias() {
return toPrepare;
}
LocalImageLoader::~LocalImageLoader() {
delete priv;
delete thread;
}