127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2014 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 "notify.h"
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#include "notificationsinterface.h"
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#include <QDBusPendingReply>
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#include <QDBusPendingCallWatcher>
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#include <QCoreApplication>
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#include <QPixmap>
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#include <QImage>
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QDBusArgument& operator<< (QDBusArgument &arg, const QImage &image)
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{
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if (image.isNull()) {
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// Sometimes this gets called with a null QImage for no obvious reason.
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arg.beginStructure();
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arg << 0 << 0 << 0 << false << 0 << 0 << QByteArray();
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arg.endStructure();
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return arg;
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}
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QImage scaled = image.scaledToHeight(128, Qt::SmoothTransformation).convertToFormat(QImage::Format_ARGB32);
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#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
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// ABGR -> ARGB
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QImage i = scaled.rgbSwapped();
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#else
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// ABGR -> GBAR
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QImage i(scaled.size(), scaled.format());
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for (int y = 0; y < i.height(); ++y) {
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QRgb *p = (QRgb*) scaled.scanLine(y);
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QRgb *q = (QRgb*) i.scanLine(y);
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QRgb *end = p + scaled.width();
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while (p < end) {
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*q = qRgba(qGreen(*p), qBlue(*p), qAlpha(*p), qRed(*p));
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p++;
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q++;
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}
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}
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#endif
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arg.beginStructure();
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arg << i.width();
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arg << i.height();
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arg << i.bytesPerLine();
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arg << i.hasAlphaChannel();
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int channels = i.isGrayscale() ? 1 : (i.hasAlphaChannel() ? 4 : 3);
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arg << i.depth() / channels;
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arg << channels;
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arg << QByteArray(reinterpret_cast<const char*>(i.bits()), i.byteCount());
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arg.endStructure();
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return arg;
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}
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const QDBusArgument& operator>> (const QDBusArgument &arg, QImage &image)
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{
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// This is needed to link but shouldn't be called.
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Q_ASSERT(0);
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Q_UNUSED(image)
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return arg;
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}
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static const int constTimeout=5000;
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Notify::Notify(QObject *p)
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: QObject(p)
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, lastId(0)
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{
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qDBusRegisterMetaType<QImage>();
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iface=new OrgFreedesktopNotificationsInterface(OrgFreedesktopNotificationsInterface::staticInterfaceName(),
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"/org/freedesktop/Notifications", QDBusConnection::sessionBus());
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}
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void Notify::show(const QString &title, const QString &text, const QImage &img)
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{
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QVariantMap hints;
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if (!img.isNull()) {
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hints["image_data"] = QVariant(img);
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}
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int id = 0;
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if (lastTime.secsTo(QDateTime::currentDateTime()) * 1000 < constTimeout) {
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// Reuse the existing popup if it's still open. The reason we don't always
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// reuse the popup is because the notification daemon on KDE4 won't re-show
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// the bubble if it's already gone to the tray. See issue #118
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id = lastId;
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}
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QDBusPendingReply<uint> reply = iface->Notify(QCoreApplication::applicationName(), id, "cantata", title, text, QStringList(), hints, constTimeout);
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QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
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connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), SLOT(callFinished(QDBusPendingCallWatcher*)));
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}
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void Notify::callFinished(QDBusPendingCallWatcher *watcher)
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{
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QDBusPendingReply<uint> reply = *watcher;
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watcher->deleteLater();
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if (reply.isError()) {
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return;
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}
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uint id = reply.value();
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if (id != 0) {
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lastId = id;
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lastTime = QDateTime::currentDateTime();
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}
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}
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