Widget::Widget(const std::string& name, point_type w, point_type h):
_parent (0),
_index (0),
_layer (LAYER_LOW),
_padLeft (0.0f),
_padRight (0.0f),
_padTop (0.0f),
_padBottom (0.0f),
_valign (VA_CENTER),
_halign (HA_CENTER),
_coordMode (CM_ABSOLUTE),
_canFill (false),
_canClone (true),
_isManaged (false),
_isStyled (false),
_minWidth (0.0f),
_minHeight (0.0f) {
_name = name.size() ? name : generateRandomName("Widget");
if(!_norms.valid()) {
_norms = new PointArray(1);
(*_norms)[0].set(0.0f, 0.0f, 1.0f);
(*_norms)[0].normalize();
}
TexCoordArray* texs = new TexCoordArray(4);
// Fill our texture coordinates with null stuff for now, since we aren't using them
// until an Image is set at some later point.
std::fill(texs->begin(), texs->end(), osg::Vec2(0.0f, 0.0f));
setUseDisplayList(false);
setDataVariance(osg::Object::DYNAMIC);
setVertexArray(new PointArray(4));
setColorArray(new ColorArray(4));
setNormalArray(_norms.get());
setTexCoordArray(0, texs);
setNormalBinding(osg::Geometry::BIND_OVERALL);
setColorBinding(osg::Geometry::BIND_PER_VERTEX);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0, 4));
setDimensions(0.0f, 0.0f, w, h);
setColor(1.0f, 1.0f, 1.0f, 1.0f);
}
WidgetBorder::WidgetBorder(const Widget & widget) : widget(widget)
{
if (osg::Vec3Array * data = new osg::Vec3Array(4))
{
const Rect & rect = widget.getRect();
const int padding = widget.getBorderPadding();
const float z = widget.getZ();
spdlog::get("log")->info("initializing WidgetBorder with rect {}, {}, {}, {}", rect.x1, rect.y1, rect.x2, rect.y2);
(*data)[0].set(rect.x1 - padding, rect.y2 + padding, z);
(*data)[1].set(rect.x1 - padding, rect.y1 - padding, z);
(*data)[2].set(rect.x2 + padding, rect.y1 - padding, z);
(*data)[3].set(rect.x2 + padding, rect.y2 + padding, z);
setVertexArray(data);
}
if (osg::Vec3Array * data = new osg::Vec3Array(1))
{
(*data)[0].set(0.f, 0.f, 1.f);
setNormalArray(data, osg::Array::BIND_OVERALL);
}
if (osg::Vec4Array * data = new osg::Vec4Array(1))
{
/*
const osg::Color & color = widget.getBorderColor();
(*data)[0].set(widget.getBorderColor().r, widget.getBorderColor().g, widget.getBorderColor().b, widget.getBorderColor().a);
*/
(*data)[0].set(1.f, 1.f, 1.f, 1.f);
setColorArray(data, osg::Array::BIND_OVERALL);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINE_LOOP, 0, 4));
// TODO: getOrCreateStateSet()->setAttribute(new osg::LineWidth(widget.getBorderPadding()));
}
void HeightmapShapeDrawable<S>::refresh(bool /*firstTime*/)
{
if (mHeightmapShape->getDataVariance() == dynamics::Shape::STATIC)
setDataVariance(::osg::Object::STATIC);
else
setDataVariance(::osg::Object::DYNAMIC);
// Row major matrix where top left corner is the height at (0, 0), and bottom
// right corner is the height at (rows, -cols) in (x, y) coordinates.
const auto& heightmap = mHeightmapShape->getHeightField();
// This function is called whenever the heightmap version is increased, and
// the heightmap could be updated in the version up. So we always update the
// heightmap.
{
assert(mElements);
assert(mNormals);
setVertices<S>(
heightmap,
*mVertices,
*mElements,
*mNormals,
mHeightmapShape->getScale());
addPrimitiveSet(mElements);
setVertexArray(mVertices);
setNormalArray(mNormals, ::osg::Array::BIND_PER_VERTEX);
}
// This function is called whenever the heightmap version is increased, and
// the color could be updated in the version up. So we always update the
// color.
{
if (mColors->size() != 1)
mColors->resize(1);
(*mColors)[0] = eigToOsgVec4d(mVisualAspect->getRGBA());
setColorArray(mColors, ::osg::Array::BIND_OVERALL);
}
}
void Ellipsoid::subDraw()
{
computeAssistVar();
getPrimitiveSetList().clear();
osg::ref_ptr<osg::Vec3Array> vertexArr = new osg::Vec3Array;
osg::ref_ptr<osg::Vec3Array> normalArr = new osg::Vec3Array;
setVertexArray(vertexArr);
setNormalArray(normalArr, osg::Array::BIND_PER_VERTEX);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(m_color);
setColorArray(colArr, osg::Array::BIND_OVERALL);
bool isFull = osg::equivalent(m_angle, 2 * M_PI, GetEpsilon());
if (isFull)
{
m_angle = 2 * M_PI;
}
osg::Vec3 bottomNormal = -m_aLen;
bottomNormal.normalize();
osg::Quat localToWold;
localToWold.makeRotate(osg::Z_AXIS, -bottomNormal);
osg::Vec3 xVec = localToWold * osg::X_AXIS;
osg::Vec3 yVec = xVec ^ bottomNormal;
int hCount = m_bDivision;
double hIncAng = 2 * M_PI / hCount;
osg::Quat hQuat(hIncAng, bottomNormal);
int vCount = (int)ceil(m_angle / (2 * M_PI / m_aDivision));
if (vCount & 1) // 如果是奇数，则变成偶数
++vCount;
double vIncAng = m_angle / vCount;
double currAngle = m_angle / 2.0;
double b = m_bRadius;
double a = m_aLen.length();
osg::Vec3 vec1(b * sin(currAngle), 0, a * cos(currAngle));
vec1 = localToWold * vec1;
osg::Vec3 normal1(sin(currAngle) / b, 0, cos(currAngle) / a);
normal1 = localToWold * normal1;
normal1.normalize();
currAngle -= vIncAng;
osg::Vec3 vec2(b * sin(currAngle), 0, a * cos(currAngle));
vec2 = localToWold * vec2;
osg::Vec3 normal2(sin(currAngle) / b, 0, cos(currAngle) / a);
normal2 = localToWold * normal2;
normal2.normalize();
const GLint first = vertexArr->size();
for (int i = 0; i < vCount / 2; ++i)
{
osg::Vec3 hVec1 = vec1;
osg::Vec3 hVec2 = vec2;
osg::Vec3 hNormal1 = normal1;
osg::Vec3 hNormal2 = normal2;
const size_t hFirst = vertexArr->size();
for (int j = 0; j < hCount; ++j)
{
vertexArr->push_back(m_center + hVec1);
vertexArr->push_back(m_center + hVec2);
normalArr->push_back(hNormal1);
normalArr->push_back(hNormal2);
hVec1 = hQuat * hVec1;
hVec2 = hQuat * hVec2;
hNormal1 = hQuat * hNormal1;
hNormal2 = hQuat * hNormal2;
}
vertexArr->push_back((*vertexArr)[hFirst]);
vertexArr->push_back((*vertexArr)[hFirst + 1]);
normalArr->push_back((*normalArr)[hFirst]);
normalArr->push_back((*normalArr)[hFirst + 1]);
vec1 = vec2;
currAngle -= vIncAng;
vec2.set(b * sin(currAngle), 0, a * cos(currAngle));
vec2 = localToWold * vec2;
normal1 = normal2;
normal2.set(sin(currAngle) / b, 0, cos(currAngle) / a);
normal2 = localToWold * normal2;
normal2.normalize();
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP, first, vertexArr->size() - first));
if (!isFull && m_bottomVis)
{
const GLint first = vertexArr->size();
currAngle = m_angle / 2.0;
osg::Vec3 vec1(b * sin(currAngle), 0, a * cos(currAngle));
vec1 = localToWold * vec1;
osg::Vec3 vec2(0, 0, a * cos(currAngle));
vec2 = localToWold * vec2;
vertexArr->push_back(m_center + vec2);
normalArr->push_back(bottomNormal);
for (int i = 0; i < hCount; ++i)
{
vertexArr->push_back(m_center + vec1);
normalArr->push_back(bottomNormal);
vec1 = hQuat * vec1;
}
vertexArr->push_back((*vertexArr)[first + 1]);
normalArr->push_back(bottomNormal);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
}
void SCylinder::subDraw()
{
getPrimitiveSetList().clear();
osg::ref_ptr<osg::Vec3Array> vertexArr = new osg::Vec3Array;
osg::ref_ptr<osg::Vec3Array> normalArr = new osg::Vec3Array;
setVertexArray(vertexArr);
setNormalArray(normalArr, osg::Array::BIND_PER_VERTEX);
osg::ref_ptr<osg::Vec4Array> colArr = new osg::Vec4Array();
colArr->push_back(m_color);
setColorArray(colArr, osg::Array::BIND_OVERALL);
int count = (int)getDivision();
double incAng = 2 * M_PI / count;
osg::Vec3 topNormal = m_height;
topNormal.normalize();
double angleCos = m_bottomNormal * (-topNormal) / m_bottomNormal.length() / topNormal.length();
double angle = acos(angleCos);
double a = m_radius;
double b = m_radius / sin(M_PI_2 - angle);
osg::Vec3 vec = m_bottomNormal ^ topNormal;
vec.normalize();
osg::Quat bottomQuat(incAng, m_bottomNormal);
double currAngle = 0;
osg::Quat localToWorldQuat;
localToWorldQuat.makeRotate(osg::Z_AXIS, m_bottomNormal);
osg::Vec3 yAxis = localToWorldQuat * osg::Y_AXIS;
osg::Quat localToWorldQuat2;
localToWorldQuat2.makeRotate(yAxis, vec);
localToWorldQuat *= localToWorldQuat2;
osg::Vec3 bottomVec(b * sin(currAngle), a * cos(currAngle), 0);
bottomVec = localToWorldQuat * bottomVec;
//bottomVec = localToWorldQuat2 * bottomVec;
osg::Quat topQuat(incAng, topNormal);
osg::Vec3 topVec = vec * m_radius;
osg::Vec3 topCenter = m_org + m_height;
size_t first = vertexArr->size();
for (int i = 0; i < count; ++i)
{
vertexArr->push_back(topCenter + topVec);
vertexArr->push_back(m_org + bottomVec);
normalArr->push_back(topVec);
normalArr->back().normalize();
normalArr->push_back(normalArr->back());
currAngle += incAng;
bottomVec.set(b * sin(currAngle), a * cos(currAngle), 0);
bottomVec = localToWorldQuat * bottomVec;
//bottomVec = localToWorldQuat2 * bottomVec;
topVec = topQuat * topVec;
}
vertexArr->push_back((*vertexArr)[first]);
vertexArr->push_back((*vertexArr)[first + 1]);
normalArr->push_back((*normalArr)[first]);
normalArr->push_back((*normalArr)[first + 1]);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_STRIP, first, vertexArr->size() - first));
if (m_bottomVis)
{
first = vertexArr->size();
vertexArr->push_back(m_org);
normalArr->push_back(m_bottomNormal);
for (int i = count; i >= 0; --i)
{
vertexArr->push_back((*vertexArr)[i * 2 + 1]);
normalArr->push_back(m_bottomNormal);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
if (m_topVis)
{
first = vertexArr->size();
vertexArr->push_back(topCenter);
normalArr->push_back(topNormal);
for (int i = 0; i < count + 1; ++i)
{
vertexArr->push_back((*vertexArr)[i * 2]);
normalArr->push_back(topNormal);
}
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN, first, vertexArr->size() - first));
}
}
osgToy::Polyhedron::Polyhedron()
{
setVertexArray( new osg::Vec3Array );
setNormalArray( new osg::Vec3Array );
setColorArray( new osg::Vec4Array );
}