1 files changed, 156 insertions, 0 deletions
diff --git a/src/extras/text/distancefieldtextrenderer.cpp b/src/extras/text/distancefieldtextrenderer.cpp
new file mode 100644
index 000000000..9f390e8da
--- /dev/null
+++ b/src/extras/text/distancefieldtextrenderer.cpp
@@ -0,0 +1,156 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <Qt3DRender/qmaterial.h>
+#include <Qt3DRender/qbuffer.h>
+#include <Qt3DRender/qattribute.h>
+#include <Qt3DRender/qgeometry.h>
+#include <Qt3DRender/qgeometryrenderer.h>
+
+#include <Qt3DExtras/private/qtext2dmaterial_p.h>
+
+#include "distancefieldtextrenderer_p.h"
+#include "distancefieldtextrenderer_p_p.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DExtras {
+
+using namespace Qt3DCore;
+
+DistanceFieldTextRendererPrivate::DistanceFieldTextRendererPrivate()
+    : m_renderer(nullptr)
+    , m_geometry(nullptr)
+    , m_positionAttr(nullptr)
+    , m_texCoordAttr(nullptr)
+    , m_indexAttr(nullptr)
+    , m_vertexBuffer(nullptr)
+    , m_indexBuffer(nullptr)
+    , m_material(nullptr)
+{
+}
+
+DistanceFieldTextRendererPrivate::~DistanceFieldTextRendererPrivate()
+{
+}
+
+void DistanceFieldTextRendererPrivate::init()
+{
+    Q_Q(DistanceFieldTextRenderer);
+
+    m_renderer = new Qt3DRender::QGeometryRenderer(q);
+    m_renderer->setPrimitiveType(Qt3DRender::QGeometryRenderer::Triangles);
+
+    m_geometry = new Qt3DRender::QGeometry(m_renderer);
+    m_renderer->setGeometry(m_geometry);
+
+    m_vertexBuffer = new Qt3DRender::QBuffer(Qt3DRender::QBuffer::VertexBuffer, m_geometry);
+    m_indexBuffer = new Qt3DRender::QBuffer(Qt3DRender::QBuffer::IndexBuffer, m_geometry);
+
+    m_positionAttr = new Qt3DRender::QAttribute(m_geometry);
+    m_positionAttr->setName(Qt3DRender::QAttribute::defaultPositionAttributeName());
+    m_positionAttr->setVertexBaseType(Qt3DRender::QAttribute::Float);
+    m_positionAttr->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
+    m_positionAttr->setVertexSize(3);
+    m_positionAttr->setByteStride(5 * sizeof(float));
+    m_positionAttr->setByteOffset(0);
+    m_positionAttr->setBuffer(m_vertexBuffer);
+
+    m_texCoordAttr = new Qt3DRender::QAttribute(m_geometry);
+    m_texCoordAttr->setName(Qt3DRender::QAttribute::defaultTextureCoordinateAttributeName());
+    m_texCoordAttr->setVertexBaseType(Qt3DRender::QAttribute::Float);
+    m_texCoordAttr->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
+    m_texCoordAttr->setVertexSize(2);
+    m_texCoordAttr->setByteStride(5 * sizeof(float));
+    m_texCoordAttr->setByteOffset(3 * sizeof(float));
+    m_texCoordAttr->setBuffer(m_vertexBuffer);
+
+    m_indexAttr = new Qt3DRender::QAttribute(m_geometry);
+    m_indexAttr->setAttributeType(Qt3DRender::QAttribute::IndexAttribute);
+    m_indexAttr->setVertexBaseType(Qt3DRender::QAttribute::UnsignedShort);
+    m_indexAttr->setBuffer(m_indexBuffer);
+
+    m_geometry->addAttribute(m_positionAttr);
+    m_geometry->setBoundingVolumePositionAttribute(m_positionAttr);
+    m_geometry->addAttribute(m_texCoordAttr);
+    m_geometry->addAttribute(m_indexAttr);
+
+    m_material = new QText2DMaterial(q);
+
+    q->addComponent(m_renderer);
+    q->addComponent(m_material);
+}
+
+DistanceFieldTextRenderer::DistanceFieldTextRenderer(QNode *parent)
+    : QEntity(*new DistanceFieldTextRendererPrivate(), parent)
+{
+    Q_D(DistanceFieldTextRenderer);
+    d->init();
+}
+
+DistanceFieldTextRenderer::~DistanceFieldTextRenderer()
+{
+}
+
+void DistanceFieldTextRenderer::setGlyphData(Qt3DRender::QAbstractTexture *glyphTexture,
+                                             const QVector<float> &vertexData,
+                                             const QVector<quint16> &indexData)
+{
+    Q_D(DistanceFieldTextRenderer);
+
+    const int vertexCount = vertexData.size() / 5;
+
+    d->m_vertexBuffer->setData(QByteArray((char*) vertexData.data(), vertexData.size() * sizeof(float)));
+    d->m_indexBuffer->setData(QByteArray((char*) indexData.data(), indexData.size() * sizeof(quint16)));
+    d->m_positionAttr->setCount(vertexCount);
+    d->m_texCoordAttr->setCount(vertexCount);
+    d->m_indexAttr->setCount(indexData.size());
+
+    d->m_material->setDistanceFieldTexture(glyphTexture);
+}
+
+void DistanceFieldTextRenderer::setColor(const QColor &color)
+{
+    Q_D(DistanceFieldTextRenderer);
+    d->m_material->setColor(color);
+}
+
+} // namespace Qt3DExtras
+
+QT_END_NAMESPACE