Please welcome the Lighthouse Research Project!

Lighthouse is a lighter, nimbler version of Qt/Embedded, which does not
contain a window system. Instead, it uses graphics system plugins to
provide the necessary functionality or interface with existing window
systems.

The first version was written by Rhys.

Squashed commit.

1 files changed, 141 insertions, 0 deletions

diff --git a/src/gui/kernel/qdesktopwidget_lite.cpp b/src/gui/kernel/qdesktopwidget_lite.cpp
new file mode 100644
index 0000000..7aea787
--- /dev/null
+++ b/src/gui/kernel/qdesktopwidget_lite.cpp
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights.  These rights are described in the Nokia Qt LGPL
+** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdesktopwidget.h"
+#include "private/qapplication_p.h"
+#include "private/qgraphicssystem_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QT_USE_NAMESPACE
+
+QDesktopWidget::QDesktopWidget()
+    : QWidget(0, Qt::Desktop)
+{
+    setObjectName(QLatin1String("desktop"));
+}
+
+QDesktopWidget::~QDesktopWidget()
+{
+}
+
+bool QDesktopWidget::isVirtualDesktop() const
+{
+    return true;
+}
+
+int QDesktopWidget::primaryScreen() const
+{
+    return 0;
+}
+
+int QDesktopWidget::numScreens() const
+{
+    QGraphicsSystem *gs = QApplicationPrivate::graphicsSystem();
+    if (!gs)
+        return 0;
+    return qMax(gs->screens().size(), 1);
+}
+
+QWidget *QDesktopWidget::screen(int)
+{
+    return this;
+}
+
+const QRect QDesktopWidget::availableGeometry(int screenNo) const
+{
+    QGraphicsSystem *gs = QApplicationPrivate::graphicsSystem();
+    if (!gs)
+        return QRect();
+    QList<QGraphicsSystemScreen *> screens = gs->screens();
+    if (screenNo == -1)
+        screenNo = 0;
+    if (screenNo < 0 || screenNo >= screens.size())
+        return QRect();
+    else
+        return screens[screenNo]->availableGeometry();
+}
+
+const QRect QDesktopWidget::screenGeometry(int screenNo) const
+{
+    QGraphicsSystem *gs = QApplicationPrivate::graphicsSystem();
+    if (!gs)
+        return QRect();
+    QList<QGraphicsSystemScreen *> screens = gs->screens();
+    if (screenNo == -1)
+        screenNo = 0;
+    if (screenNo < 0 || screenNo >= screens.size())
+        return QRect();
+    else
+        return screens[screenNo]->geometry();
+}
+
+int QDesktopWidget::screenNumber(const QWidget *w) const
+{
+    if (!w)
+        return 0;
+
+    QRect frame = w->frameGeometry();
+    if (!w->isWindow())
+        frame.moveTopLeft(w->mapToGlobal(QPoint(0, 0)));
+    const QPoint midpoint = (frame.topLeft() + frame.bottomRight()) / 2;
+    return screenNumber(midpoint);
+}
+
+int QDesktopWidget::screenNumber(const QPoint &p) const
+{
+    QGraphicsSystem *gs = QApplicationPrivate::graphicsSystem();
+    if (!gs)
+        return -1;
+    QList<QGraphicsSystemScreen *> screens = gs->screens();
+
+    for (int i = 0; i < screens.size(); ++i)
+        if (screens[i]->geometry().contains(p))
+            return i;
+
+    return -1;
+}
+
+void QDesktopWidget::resizeEvent(QResizeEvent *)
+{
+}
+
+QT_END_NAMESPACE