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39
40#include "qsgdefaultrectanglenode_p.h"
41#include "qsgflatcolormaterial.h"
42
43QT_BEGIN_NAMESPACE
44
45// Unlike our predecessor, QSGSimpleRectNode, use QSGVertexColorMaterial
46// instead of Flat in order to allow better batching in the renderer.
47
48QSGDefaultRectangleNode::QSGDefaultRectangleNode()
49 : m_geometry(QSGGeometry::defaultAttributes_ColoredPoint2D(), 4)
50{
51 QSGGeometry::updateColoredRectGeometry(g: &m_geometry, rect: QRectF());
52 setMaterial(&m_material);
53 setGeometry(&m_geometry);
54 setColor(QColor(255, 255, 255));
55#ifdef QSG_RUNTIME_DESCRIPTION
56 qsgnode_set_description(node: this, description: QLatin1String("rectangle"));
57#endif
58}
59
60void QSGDefaultRectangleNode::setRect(const QRectF &rect)
61{
62 QSGGeometry::updateColoredRectGeometry(g: &m_geometry, rect);
63 markDirty(bits: QSGNode::DirtyGeometry);
64}
65
66QRectF QSGDefaultRectangleNode::rect() const
67{
68 const QSGGeometry::ColoredPoint2D *pts = m_geometry.vertexDataAsColoredPoint2D();
69 return QRectF(pts[0].x,
70 pts[0].y,
71 pts[3].x - pts[0].x,
72 pts[3].y - pts[0].y);
73}
74
75void QSGDefaultRectangleNode::setColor(const QColor &color)
76{
77 if (color != m_color) {
78 m_color = color;
79 QSGGeometry::ColoredPoint2D *pts = m_geometry.vertexDataAsColoredPoint2D();
80 for (int i = 0; i < 4; ++i) {
81 pts[i].r = uchar(qRound(d: m_color.redF() * m_color.alphaF() * 255));
82 pts[i].g = uchar(qRound(d: m_color.greenF() * m_color.alphaF() * 255));
83 pts[i].b = uchar(qRound(d: m_color.blueF() * m_color.alphaF() * 255));
84 pts[i].a = uchar(qRound(d: m_color.alphaF() * 255));
85 }
86 markDirty(bits: QSGNode::DirtyGeometry);
87 }
88}
89
90QColor QSGDefaultRectangleNode::color() const
91{
92 return m_color;
93}
94
95QT_END_NAMESPACE
96

source code of qtdeclarative/src/quick/scenegraph/util/qsgdefaultrectanglenode.cpp