QColorMask render state

Change-Id: I3f44459c01cc1fe1b90b119598e352a8635c9037
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 191 insertions, 0 deletions

diff --git a/src/render/frontend/qcolormask.cpp b/src/render/frontend/qcolormask.cpp
new file mode 100644
index 000000000..141419f14
--- /dev/null
+++ b/src/render/frontend/qcolormask.cpp
@@ -0,0 +1,191 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcolormask.h"
+#include <Qt3DRenderer/private/qrenderstate_p.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3D {
+
+class QColorMaskPrivate : public QRenderStatePrivate
+{
+public:
+    QColorMaskPrivate(QColorMask *qq)
+        : QRenderStatePrivate(qq)
+        , m_red(true)
+        , m_green(true)
+        , m_blue(true)
+        , m_alpha(true)
+    {}
+
+    bool m_red;
+    bool m_green;
+    bool m_blue;
+    bool m_alpha;
+
+    Q_DECLARE_PUBLIC(QColorMask)
+};
+
+/*!
+
+    \class Qt3D::QColorMask
+
+    \brief QColorMask allows to specify which color components should be written
+    to the currently bound frame buffer.
+
+    By default each color component (red, green, blue, alpha) is set to true
+    which means they will be written to the frame buffer. Setting any of the
+    color component to false will prevent it from being written into the frame
+    buffer.
+ */
+
+
+/*!
+    Constructs a new Qt3D::QColorMask instance with \a parent as parent.
+ */
+QColorMask::QColorMask(QNode *parent)
+    : QRenderState(*new QColorMaskPrivate(this), parent)
+{
+}
+
+QColorMask::~QColorMask()
+{
+}
+
+/*!
+    \return whether the red color component should be written to the frame buffer;
+ */
+bool QColorMask::isRed() const
+{
+    Q_D(const QColorMask);
+    return d->m_red;
+}
+
+/*!
+    \return whether the green color component should be written to the frame buffer;
+ */
+bool QColorMask::isGreen() const
+{
+    Q_D(const QColorMask);
+    return d->m_green;
+}
+
+/*!
+    \return whether the blue color component should be written to the frame buffer;
+ */
+bool QColorMask::isBlue() const
+{
+    Q_D(const QColorMask);
+    return d->m_blue;
+}
+
+/*!
+    \return whether the alpha color component should be written to the frame buffer;
+ */
+bool QColorMask::isAlpha() const
+{
+    Q_D(const QColorMask);
+    return d->m_alpha;
+}
+
+/*!
+    Sets whether the \a red color component should be written to the frame buffer;
+ */
+void QColorMask::setRed(bool red)
+{
+    Q_D(QColorMask);
+    if (red != d->m_red) {
+        d->m_red = red;
+        emit redChanged();
+    }
+}
+
+/*!
+    Sets whether the \a greem color component should be written to the frame buffer;
+ */
+void QColorMask::setGreen(bool green)
+{
+    Q_D(QColorMask);
+    if (green != d->m_green) {
+        d->m_green = green;
+        emit greenChanged();
+    }
+}
+
+/*!
+    Sets whether the \a blue color component should be written to the frame buffer;
+ */
+void QColorMask::setBlue(bool blue)
+{
+    Q_D(QColorMask);
+    if (blue != d->m_blue) {
+        d->m_blue = blue;
+        emit blueChanged();
+    }
+}
+
+/*!
+    Sets whether the \a alpha color component should be written to the frame buffer;
+ */
+void QColorMask::setAlpha(bool alpha)
+{
+    Q_D(QColorMask);
+    if (alpha != d->m_alpha) {
+        d->m_alpha = alpha;
+        emit alphaChanged();
+    }
+}
+
+void QColorMask::copy(const QNode *ref)
+{
+    QRenderState::copy(ref);
+    const QColorMask *refState = static_cast<const QColorMask *>(ref);
+    d_func()->m_red = refState->d_func()->m_red;
+    d_func()->m_green = refState->d_func()->m_green;
+    d_func()->m_blue = refState->d_func()->m_blue;
+    d_func()->m_alpha = refState->d_func()->m_alpha;
+}
+
+} // Qt3D
+
+QT_END_NAMESPACE
+