Long live Qt 4.5!

1 files changed, 194 insertions, 0 deletions

diff --git a/src/3rdparty/phonon/gstreamer/x11renderer.cpp b/src/3rdparty/phonon/gstreamer/x11renderer.cpp
new file mode 100644
index 0000000000..73877a8f14
--- /dev/null
+++ b/src/3rdparty/phonon/gstreamer/x11renderer.cpp
@@ -0,0 +1,194 @@
+/*  This file is part of the KDE project.
+
+    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+    This library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2.1 or 3 of the License.
+
+    This library 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 Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "videowidget.h"
+#include "x11renderer.h"
+
+#ifndef Q_WS_QWS
+
+#include <QtGui/QPalette>
+#include <QtGui/QApplication>
+#include <QtGui/QPainter>
+#include <X11/Xlib.h>
+#include <gst/gst.h>
+#include <gst/interfaces/xoverlay.h>
+#include <gst/interfaces/propertyprobe.h>
+#include "common.h"
+#include "mediaobject.h"
+#include "message.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace Gstreamer
+{
+
+class OverlayWidget : public QWidget
+{
+public:
+    OverlayWidget(VideoWidget *videoWidget, X11Renderer *renderer) : 
+                  QWidget(videoWidget), 
+                  m_videoWidget(videoWidget), 
+                  m_renderer(renderer) { }
+    void paintEvent(QPaintEvent *) {
+        Phonon::State state = m_videoWidget->root() ? m_videoWidget->root()->state() : Phonon::LoadingState;
+        if (state == Phonon::PlayingState || state == Phonon::PausedState) {
+            m_renderer->windowExposed();
+        } else {
+            QPainter painter(this);
+            painter.fillRect(m_videoWidget->rect(), m_videoWidget->palette().background());
+        }
+    }
+private:
+    VideoWidget *m_videoWidget;
+    X11Renderer *m_renderer;
+};
+
+X11Renderer::X11Renderer(VideoWidget *videoWidget)
+        : AbstractRenderer(videoWidget)
+{
+    m_renderWidget = new OverlayWidget(videoWidget, this);
+    videoWidget->backend()->logMessage("Creating X11 overlay renderer");
+    QPalette palette;
+    palette.setColor(QPalette::Background, Qt::black);
+    m_videoWidget->setPalette(palette);
+    m_videoWidget->setAutoFillBackground(true);
+    m_renderWidget->setMouseTracking(true);
+    m_videoSink = createVideoSink();
+    aspectRatioChanged(videoWidget->aspectRatio());
+    setOverlay();
+}
+
+X11Renderer::~X11Renderer()
+{
+    m_renderWidget->setAttribute(Qt::WA_PaintOnScreen, false);
+    m_renderWidget->setAttribute(Qt::WA_NoSystemBackground, false);
+    delete m_renderWidget;
+}
+
+GstElement* X11Renderer::createVideoSink()
+{
+    GstElement *videoSink = gst_element_factory_make ("xvimagesink", NULL);
+    if (videoSink) {
+        // Check if the xv sink is usable
+        if (gst_element_set_state(videoSink, GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS) {
+            gst_object_unref(GST_OBJECT(videoSink));
+            videoSink = 0;
+        } else {
+            // Note that this should not really be neccessary as these are 
+            // default values, though under certain conditions values are retained
+            // even between application instances. (reproducible on 0.10.16/Gutsy)
+            g_object_set(G_OBJECT(videoSink), "brightness", 0, (const char*)NULL);
+            g_object_set(G_OBJECT(videoSink), "contrast", 0, (const char*)NULL);
+            g_object_set(G_OBJECT(videoSink), "hue", 0, (const char*)NULL);
+            g_object_set(G_OBJECT(videoSink), "saturation", 0, (const char*)NULL);
+        }
+    }
+
+    if (!videoSink)
+        videoSink = gst_element_factory_make ("ximagesink", NULL);
+
+    gst_object_ref (GST_OBJECT (videoSink)); //Take ownership
+    gst_object_sink (GST_OBJECT (videoSink));
+
+    return videoSink;
+}
+
+void X11Renderer::handleMediaNodeEvent(const MediaNodeEvent *event)
+{
+    switch (event->type()) {
+    case MediaNodeEvent::SourceChanged:
+        setOverlay(); // We need to do this whenever the pipeline is reset
+        break;        // otherwise the videosink will open in its own window
+    default:
+        break;
+    }
+}
+
+
+void X11Renderer::aspectRatioChanged(Phonon::VideoWidget::AspectRatio)
+{
+    if (m_renderWidget) {
+        m_renderWidget->setGeometry(m_videoWidget->calculateDrawFrameRect());
+    }
+}
+
+void X11Renderer::scaleModeChanged(Phonon::VideoWidget::ScaleMode)
+{
+    if (m_renderWidget) {
+        m_renderWidget->setGeometry(m_videoWidget->calculateDrawFrameRect());
+    }
+}
+
+void X11Renderer::movieSizeChanged(const QSize &movieSize)
+{
+    Q_UNUSED(movieSize);
+    if (m_renderWidget) {
+        m_renderWidget->setGeometry(m_videoWidget->calculateDrawFrameRect());
+    }
+}
+
+bool X11Renderer::eventFilter(QEvent *e)
+{
+    if (e->type() == QEvent::Show) {
+        // Setting these values ensures smooth resizing since it
+        // will prevent the system from clearing the background
+        m_renderWidget->setAttribute(Qt::WA_NoSystemBackground, true);
+        m_renderWidget->setAttribute(Qt::WA_PaintOnScreen, true);
+        setOverlay();
+    } else if (e->type() == QEvent::Resize) {
+        // This is a workaround for missing background repaints
+        // when reducing window size
+        m_renderWidget->setGeometry(m_videoWidget->calculateDrawFrameRect());
+        windowExposed();
+    }
+    return false;
+}
+
+void X11Renderer::handlePaint(QPaintEvent *)
+{
+    QPainter painter(m_videoWidget);
+    painter.fillRect(m_videoWidget->rect(), m_videoWidget->palette().background());
+}
+
+void X11Renderer::setOverlay()
+{
+    if (m_videoSink && GST_IS_X_OVERLAY(m_videoSink)) {
+        WId windowId = m_renderWidget->winId();
+        // Even if we have created a winId at this point, other X applications
+        // need to be aware of it.
+        QApplication::syncX();
+        gst_x_overlay_set_xwindow_id ( GST_X_OVERLAY(m_videoSink) ,  windowId );
+    }
+    windowExposed();
+    m_overlaySet = true;
+}
+
+void X11Renderer::windowExposed()
+{
+    QApplication::syncX();
+    if (m_videoSink && GST_IS_X_OVERLAY(m_videoSink))
+        gst_x_overlay_expose(GST_X_OVERLAY(m_videoSink));
+}
+
+}
+} //namespace Phonon::Gstreamer
+
+QT_END_NAMESPACE
+
+#endif // Q_WS_QWS