Introduce QRasterWindow

A simple convenience class providing a QWindow that has a
paintEvent and supports opening a painter on itself. It
behaves exactly like QOpenGLWindow in this respect, which is not
surprising since they share the same base class (QPaintDeviceWindow).

QRasterWindow does not however have any OpenGL dependencies and will
be present in -no-opengl builds too.

[ChangeLog] Added QRasterWindow, a thin convenience wrapper for a
QWindow on which a QPainter can be opened.

Done-with: Jorgen Lind <jorgen.lind@digia.com>
Change-Id: I37e82720492945d7b85d5f713eea8d5f7556e511
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/gui/kernel/qrasterwindow.h b/src/gui/kernel/qrasterwindow.h
new file mode 100644
index 0000000000..93e8421c6b
--- /dev/null
+++ b/src/gui/kernel/qrasterwindow.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QRASTERWINDOW_H
+#define QRASTERWINDOW_H
+
+#include <QtGui/QPaintDeviceWindow>
+
+QT_BEGIN_NAMESPACE
+
+class QRasterWindowPrivate;
+
+class Q_GUI_EXPORT QRasterWindow : public QPaintDeviceWindow
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QRasterWindow)
+
+public:
+    explicit QRasterWindow(QWindow *parent = 0);
+
+protected:
+    int metric(PaintDeviceMetric metric) const Q_DECL_OVERRIDE;
+    QPaintDevice *redirected(QPoint *) const Q_DECL_OVERRIDE;
+
+private:
+    Q_DISABLE_COPY(QRasterWindow)
+};
+
+QT_END_NAMESPACE
+
+#endif