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39
40#include <Qt3DRender/qmaterial.h>
41#include <Qt3DRender/qbuffer.h>
42#include <Qt3DRender/qattribute.h>
43#include <Qt3DRender/qgeometry.h>
44#include <Qt3DRender/qgeometryrenderer.h>
45
46#include <Qt3DExtras/private/qtext2dmaterial_p.h>
47
48#include "distancefieldtextrenderer_p.h"
49#include "distancefieldtextrenderer_p_p.h"
50
51QT_BEGIN_NAMESPACE
52
53namespace Qt3DExtras {
54
55using namespace Qt3DCore;
56
57DistanceFieldTextRendererPrivate::DistanceFieldTextRendererPrivate()
58 : m_renderer(nullptr)
59 , m_geometry(nullptr)
60 , m_positionAttr(nullptr)
61 , m_texCoordAttr(nullptr)
62 , m_indexAttr(nullptr)
63 , m_vertexBuffer(nullptr)
64 , m_indexBuffer(nullptr)
65 , m_material(nullptr)
66{
67}
68
69DistanceFieldTextRendererPrivate::~DistanceFieldTextRendererPrivate()
70{
71}
72
73void DistanceFieldTextRendererPrivate::init()
74{
75 Q_Q(DistanceFieldTextRenderer);
76
77 m_renderer = new Qt3DRender::QGeometryRenderer(q);
78 m_renderer->setPrimitiveType(Qt3DRender::QGeometryRenderer::Triangles);
79
80 m_geometry = new Qt3DRender::QGeometry(m_renderer);
81 m_renderer->setGeometry(m_geometry);
82
83 m_vertexBuffer = new Qt3DRender::QBuffer(m_geometry);
84 m_indexBuffer = new Qt3DRender::QBuffer(m_geometry);
85
86 m_positionAttr = new Qt3DRender::QAttribute(m_geometry);
87 m_positionAttr->setName(Qt3DRender::QAttribute::defaultPositionAttributeName());
88 m_positionAttr->setVertexBaseType(Qt3DRender::QAttribute::Float);
89 m_positionAttr->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
90 m_positionAttr->setVertexSize(3);
91 m_positionAttr->setByteStride(5 * sizeof(float));
92 m_positionAttr->setByteOffset(0);
93 m_positionAttr->setBuffer(m_vertexBuffer);
94
95 m_texCoordAttr = new Qt3DRender::QAttribute(m_geometry);
96 m_texCoordAttr->setName(Qt3DRender::QAttribute::defaultTextureCoordinateAttributeName());
97 m_texCoordAttr->setVertexBaseType(Qt3DRender::QAttribute::Float);
98 m_texCoordAttr->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
99 m_texCoordAttr->setVertexSize(2);
100 m_texCoordAttr->setByteStride(5 * sizeof(float));
101 m_texCoordAttr->setByteOffset(3 * sizeof(float));
102 m_texCoordAttr->setBuffer(m_vertexBuffer);
103
104 m_indexAttr = new Qt3DRender::QAttribute(m_geometry);
105 m_indexAttr->setAttributeType(Qt3DRender::QAttribute::IndexAttribute);
106 m_indexAttr->setVertexBaseType(Qt3DRender::QAttribute::UnsignedShort);
107 m_indexAttr->setBuffer(m_indexBuffer);
108
109 m_geometry->addAttribute(attribute: m_positionAttr);
110 m_geometry->setBoundingVolumePositionAttribute(m_positionAttr);
111 m_geometry->addAttribute(attribute: m_texCoordAttr);
112 m_geometry->addAttribute(attribute: m_indexAttr);
113
114 m_material = new QText2DMaterial(q);
115
116 q->addComponent(comp: m_renderer);
117 q->addComponent(comp: m_material);
118}
119
120DistanceFieldTextRenderer::DistanceFieldTextRenderer(QNode *parent)
121 : QEntity(*new DistanceFieldTextRendererPrivate(), parent)
122{
123 Q_D(DistanceFieldTextRenderer);
124 d->init();
125}
126
127DistanceFieldTextRenderer::~DistanceFieldTextRenderer()
128{
129}
130
131void DistanceFieldTextRenderer::setGlyphData(Qt3DRender::QAbstractTexture *glyphTexture,
132 const QVector<float> &vertexData,
133 const QVector<quint16> &indexData)
134{
135 Q_D(DistanceFieldTextRenderer);
136
137 const int vertexCount = vertexData.size() / 5;
138
139 d->m_vertexBuffer->setData(QByteArray((char*) vertexData.data(), vertexData.size() * sizeof(float)));
140 d->m_indexBuffer->setData(QByteArray((char*) indexData.data(), indexData.size() * sizeof(quint16)));
141 d->m_positionAttr->setCount(vertexCount);
142 d->m_texCoordAttr->setCount(vertexCount);
143 d->m_indexAttr->setCount(indexData.size());
144
145 d->m_material->setDistanceFieldTexture(glyphTexture);
146}
147
148void DistanceFieldTextRenderer::setColor(const QColor &color)
149{
150 Q_D(DistanceFieldTextRenderer);
151 d->m_material->setColor(color);
152}
153
154} // namespace Qt3DExtras
155
156QT_END_NAMESPACE
157

source code of qt3d/src/extras/text/distancefieldtextrenderer.cpp