Move eglfs-only parts back from eglconvenience

The integration, screen, window and cursor classes were split in Qt 5.3 under a plan
of sharing these between eglfs, the Android port and potentially other future plugins.
This never materialized.

Maintaining the artificial split is getting difficult and is prone to errors. Therefore
it is time to merge back these base classes into eglfs. The result is cleaner, smaller,
and potentially better performing code. eglconvenience is now restored to be a collection
of convenience classes instead of platform plugin bits.

Change-Id: I75c6ad876ef66a1a0c5b39c1c307f928d2ed47d4
Reviewed-by: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>

1 files changed, 70 insertions, 9 deletions

diff --git a/src/plugins/platforms/eglfs/qeglfswindow.cpp b/src/plugins/platforms/eglfs/qeglfswindow.cpp
index c0d51c94a5..c3b9dd6ef0 100644
--- a/src/plugins/platforms/eglfs/qeglfswindow.cpp
+++ b/src/plugins/platforms/eglfs/qeglfswindow.cpp
@@ -37,21 +37,23 @@
 #include <private/qguiapplication_p.h>
 #include <QtGui/private/qopenglcontext_p.h>
 #include <QtGui/QOpenGLContext>
-#include <QtPlatformSupport/private/qeglplatformcursor_p.h>
 #include <QtPlatformSupport/private/qeglconvenience_p.h>
+#include <QtPlatformSupport/private/qopenglcompositorbackingstore_p.h>
 
 #include "qeglfswindow.h"
+#include "qeglfscursor.h"
 #include "qeglfshooks.h"
 
-#include <QtDebug>
-
 QT_BEGIN_NAMESPACE
 
 QEglFSWindow::QEglFSWindow(QWindow *w)
-    : QEGLPlatformWindow(w)
-    , m_surface(0)
-    , m_window(0)
-    , m_flags(0)
+    : QPlatformWindow(w),
+      m_backingStore(0),
+      m_raster(false),
+      m_winId(0),
+      m_surface(0),
+      m_window(0),
+      m_flags(0)
 {
 }
 
@@ -60,12 +62,34 @@ QEglFSWindow::~QEglFSWindow()
     destroy();
 }
 
+static WId newWId()
+{
+    static WId id = 0;
+
+    if (id == std::numeric_limits<WId>::max())
+        qWarning("QEGLPlatformWindow: Out of window IDs");
+
+    return ++id;
+}
+
 void QEglFSWindow::create()
 {
     if (m_flags.testFlag(Created))
         return;
 
-    QEGLPlatformWindow::create();
+    m_winId = newWId();
+
+    // Save the original surface type before changing to OpenGLSurface.
+    m_raster = (window()->surfaceType() == QSurface::RasterSurface);
+    if (m_raster) // change to OpenGL, but not for RasterGLSurface
+        window()->setSurfaceType(QSurface::OpenGLSurface);
+
+    if (window()->type() == Qt::Desktop) {
+        QRect fullscreenRect(QPoint(), screen()->availableGeometry().size());
+        QPlatformWindow::setGeometry(fullscreenRect);
+        QWindowSystemInterface::handleGeometryChange(window(), fullscreenRect);
+        return;
+    }
 
     m_flags = Created;
 
@@ -120,7 +144,7 @@ void QEglFSWindow::destroy()
 {
     QEglFSScreen *screen = this->screen();
     if (m_flags.testFlag(HasNativeWindow)) {
-        QEGLPlatformCursor *cursor = qobject_cast<QEGLPlatformCursor *>(screen->cursor());
+        QEglFSCursor *cursor = qobject_cast<QEglFSCursor *>(screen->cursor());
         if (cursor)
             cursor->resetResources();
 
@@ -265,4 +289,41 @@ QEglFSScreen *QEglFSWindow::screen() const
     return static_cast<QEglFSScreen *>(QPlatformWindow::screen());
 }
 
+bool QEglFSWindow::isRaster() const
+{
+    return m_raster || window()->surfaceType() == QSurface::RasterGLSurface;
+}
+
+QWindow *QEglFSWindow::sourceWindow() const
+{
+    return window();
+}
+
+const QPlatformTextureList *QEglFSWindow::textures() const
+{
+    if (m_backingStore)
+        return m_backingStore->textures();
+
+    return 0;
+}
+
+void QEglFSWindow::endCompositing()
+{
+    if (m_backingStore)
+        m_backingStore->notifyComposited();
+}
+
+WId QEglFSWindow::winId() const
+{
+    return m_winId;
+}
+
+void QEglFSWindow::setOpacity(qreal)
+{
+    if (!isRaster())
+        qWarning("QEglFSWindow: Cannot set opacity for non-raster windows");
+
+    // Nothing to do here. The opacity is stored in the QWindow.
+}
+
 QT_END_NAMESPACE