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opennurbs_decals.cpp
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opennurbs_decals.cpp
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//
// Copyright (c) 1993-2022 Robert McNeel & Associates. All rights reserved.
// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert
// McNeel & Associates.
//
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF
// MERCHANTABILITY ARE HEREBY DISCLAIMED.
//
// For complete openNURBS copyright information see <http://www.opennurbs.org>.
//
////////////////////////////////////////////////////////////////
#include "opennurbs.h"
#include "opennurbs_internal_defines.h"
#if !defined(ON_COMPILING_OPENNURBS)
// This check is included in all opennurbs source .c and .cpp files to insure
// ON_COMPILING_OPENNURBS is defined when opennurbs source is compiled.
// When opennurbs source is being compiled, ON_COMPILING_OPENNURBS is defined
// and the opennurbs .h files alter what is declared and how it is declared.
#error ON_COMPILING_OPENNURBS must be defined when compiling opennurbs
#endif
// ON_Decal
static ON_4dPoint UNSET_4D_POINT = ON_4dPoint(ON_UNSET_VALUE, ON_UNSET_VALUE, ON_UNSET_VALUE, ON_UNSET_VALUE);
ON__UINT32 ON_DecalCRCFromNode(const ON_XMLNode& node)
{
return ON_Decal::ComputeDecalCRC(0, node);
}
class ON_Decal::CImpl : public ON_InternalXMLImpl
{
public:
CImpl() { ON_CreateUuid(_decal_id); }
CImpl(ON_DecalCollection& dc, ON_XMLNode& node) : _collection(&dc), ON_InternalXMLImpl(&node) { ON_CreateUuid(_decal_id); }
ON_UUID TextureInstanceId(void) const;
void SetTextureInstanceId(const ON_UUID& id);
Mappings Mapping(void) const;
void SetMapping(Mappings v);
Projections Projection(void) const;
void SetProjection(Projections v);
bool MapToInside(void) const;
void SetMapToInside(bool v);
double Transparency(void) const;
void SetTransparency(double v);
ON_3dPoint Origin(void) const;
void SetOrigin(const ON_3dPoint& v);
ON_3dVector VectorUp(void) const;
void SetVectorUp(const ON_3dVector& v);
ON_3dVector VectorAcross(void) const;
void SetVectorAcross(const ON_3dVector& v);
double Height(void) const;
void SetHeight(double d);
double Radius(void) const;
void SetRadius(double d);
bool IsVisible(void) const;
void SetIsVisible(bool b);
void GetHorzSweep(double& sta, double& end) const;
void SetHorzSweep(double sta, double end);
void GetVertSweep(double& sta, double& end) const;
void SetVertSweep(double sta, double end);
void GetUVBounds(double& min_u, double& min_v, double& max_u, double& max_v) const;
void SetUVBounds(double min_u, double min_v, double max_u, double max_v);
ON_UUID Id(void) const { return _decal_id; }
ON_XMLVariant GetParameter(const wchar_t* param_name, const ON_XMLVariant& def) const;
void SetParameter(const wchar_t* param_name, const ON_XMLVariant& value);
ON_XMLNode* FindCustomNodeForRenderEngine(const ON_UUID& renderEngineId) const;
virtual ON_wString NameOfRootNode(void) const override { return ON_RDK_DECAL; }
static const int unset_bool = 2;
mutable struct Cache
{
double radius = ON_UNSET_VALUE;
double height = ON_UNSET_VALUE;
double transparency = ON_UNSET_VALUE;
ON_UUID texture_instance_id = ON_nil_uuid;
ON_3dPoint origin = ON_3dPoint::UnsetPoint;
ON_3dVector vector_up = ON_3dVector::UnsetVector;
ON_3dVector vector_across = ON_3dVector::UnsetVector;
ON_2dPoint horz_sweep = ON_2dPoint::UnsetPoint;
ON_2dPoint vert_sweep = ON_2dPoint::UnsetPoint;
ON_4dPoint uv_bounds = UNSET_4D_POINT;
Mappings mapping = Mappings::None;
Projections projection = Projections::None;
bool texture_instance_id_set = false;
int visible = unset_bool;
int map_to_inside = unset_bool;
}
_cache;
private:
ON_DecalCollection* _collection = nullptr;
ON_UUID _decal_id;
};
static ON_Decal::Mappings MappingFromString(const ON_wString& s)
{
if (s == ON_RDK_DECAL_MAPPING_PLANAR) return ON_Decal::Mappings::Planar;
else if (s == ON_RDK_DECAL_MAPPING_SPHERICAL) return ON_Decal::Mappings::Spherical;
else if (s == ON_RDK_DECAL_MAPPING_CYLINDRICAL) return ON_Decal::Mappings::Cylindrical;
else if (s == ON_RDK_DECAL_MAPPING_UV) return ON_Decal::Mappings::UV;
else if (s == ON_RDK_DECAL_MAPPING_NONE) return ON_Decal::Mappings::None;
ON_ASSERT(false);
return ON_Decal::Mappings::None;
}
ON_XMLVariant ON_Decal::CImpl::GetParameter(const wchar_t* param_name, const ON_XMLVariant& def) const
{
return ON_InternalXMLImpl::GetParameter(L"", param_name, def);
}
void ON_Decal::CImpl::SetParameter(const wchar_t* param_name, const ON_XMLVariant& value)
{
if (nullptr != _collection)
_collection->SetChanged();
ON_InternalXMLImpl::SetParameter(L"", param_name, value);
}
ON_UUID ON_Decal::CImpl::TextureInstanceId(void) const
{
if (!_cache.texture_instance_id_set)
{
_cache.texture_instance_id = GetParameter(ON_RDK_DECAL_TEXTURE_INSTANCE, ON_nil_uuid).AsUuid();
_cache.texture_instance_id_set = true;
}
return _cache.texture_instance_id;
}
void ON_Decal::CImpl::SetTextureInstanceId(const ON_UUID& id)
{
if (!_cache.texture_instance_id_set || (_cache.texture_instance_id != id))
{
_cache.texture_instance_id = id;
_cache.texture_instance_id_set = true;
SetParameter(ON_RDK_DECAL_TEXTURE_INSTANCE, id);
}
}
ON_Decal::Mappings ON_Decal::CImpl::Mapping(void) const
{
if (Mappings::None == _cache.mapping)
{
const ON_wString s = GetParameter(ON_RDK_DECAL_MAPPING, ON_RDK_DECAL_MAPPING_UV).AsString();
_cache.mapping = MappingFromString(s);
}
return _cache.mapping;
}
void ON_Decal::CImpl::SetMapping(Mappings m)
{
if (_cache.mapping != m)
{
_cache.mapping = m;
const wchar_t* s = L"";
switch (m)
{
default: ON_ASSERT(false);
case Mappings::None: s = ON_RDK_DECAL_MAPPING_NONE; break;
case Mappings::Planar: s = ON_RDK_DECAL_MAPPING_PLANAR; break;
case Mappings::Spherical: s = ON_RDK_DECAL_MAPPING_SPHERICAL; break;
case Mappings::Cylindrical: s = ON_RDK_DECAL_MAPPING_CYLINDRICAL; break;
case Mappings::UV: s = ON_RDK_DECAL_MAPPING_UV; break;
}
SetParameter(ON_RDK_DECAL_MAPPING, s);
}
}
ON_Decal::Projections ON_Decal::CImpl::Projection(void) const
{
if (Projections::None == _cache.projection)
{
const ON_wString s = GetParameter(ON_RDK_DECAL_PROJECTION, ON_RDK_DECAL_PROJECTION_NONE).AsString();
if (s == ON_RDK_DECAL_PROJECTION_FORWARD) _cache.projection = ON_Decal::Projections::Forward;
else if (s == ON_RDK_DECAL_PROJECTION_BACKWARD) _cache.projection = ON_Decal::Projections::Backward;
else if (s == ON_RDK_DECAL_PROJECTION_BOTH) _cache.projection = ON_Decal::Projections::Both;
else if (s == ON_RDK_DECAL_PROJECTION_NONE) _cache.projection = ON_Decal::Projections::None;
else ON_ASSERT(false);
}
return _cache.projection;
}
void ON_Decal::CImpl::SetProjection(Projections v)
{
if (_cache.projection != v)
{
_cache.projection = v;
const wchar_t* s = L"";
switch (v)
{
default: ON_ASSERT(false);
case ON_Decal::Projections::None: s = ON_RDK_DECAL_PROJECTION_NONE; break;
case ON_Decal::Projections::Forward: s = ON_RDK_DECAL_PROJECTION_FORWARD; break;
case ON_Decal::Projections::Backward: s = ON_RDK_DECAL_PROJECTION_BACKWARD; break;
case ON_Decal::Projections::Both: s = ON_RDK_DECAL_PROJECTION_BOTH; break;
}
SetParameter(ON_RDK_DECAL_PROJECTION, s);
}
}
bool ON_Decal::CImpl::MapToInside(void) const
{
if (unset_bool == _cache.map_to_inside)
{
_cache.map_to_inside = GetParameter(ON_RDK_DECAL_MAP_TO_INSIDE_ON, false).AsBool() ? 1 : 0;
}
return 0 != _cache.map_to_inside;
}
void ON_Decal::CImpl::SetMapToInside(bool b)
{
const int i = b ? 1 : 0;
if (_cache.map_to_inside != i)
{
_cache.map_to_inside = i;
SetParameter(ON_RDK_DECAL_MAP_TO_INSIDE_ON, b);
}
}
double ON_Decal::CImpl::Transparency(void) const
{
if (ON_UNSET_VALUE == _cache.transparency)
{
_cache.transparency = GetParameter(ON_RDK_DECAL_TRANSPARENCY, 0.0).AsDouble();
}
return _cache.transparency;
}
void ON_Decal::CImpl::SetTransparency(double v)
{
if (_cache.transparency != v)
{
_cache.transparency = v;
SetParameter(ON_RDK_DECAL_TRANSPARENCY, v);
}
}
ON_3dPoint ON_Decal::CImpl::Origin(void) const
{
if (ON_3dPoint::UnsetPoint == _cache.origin)
{
_cache.origin = GetParameter(ON_RDK_DECAL_ORIGIN, ON_3dPoint::Origin).As3dPoint();
}
return _cache.origin;
}
void ON_Decal::CImpl::SetOrigin(const ON_3dPoint& pt)
{
if (_cache.origin != pt)
{
_cache.origin = pt;
SetParameter(ON_RDK_DECAL_ORIGIN, pt);
}
}
ON_3dVector ON_Decal::CImpl::VectorUp(void) const
{
if (ON_3dVector::UnsetVector == _cache.vector_up)
{
_cache.vector_up = GetParameter(ON_RDK_DECAL_VECTOR_UP, ON_3dPoint::Origin).As3dPoint();
}
return _cache.vector_up;
}
void ON_Decal::CImpl::SetVectorUp(const ON_3dVector& v)
{
if (_cache.vector_up != v)
{
_cache.vector_up = v;
SetParameter(ON_RDK_DECAL_VECTOR_UP, ON_3dPoint(v));
}
}
ON_3dVector ON_Decal::CImpl::VectorAcross(void) const
{
if (ON_3dVector::UnsetVector == _cache.vector_across)
{
_cache.vector_across = GetParameter(ON_RDK_DECAL_VECTOR_ACROSS, ON_3dPoint::Origin).As3dPoint();
}
return _cache.vector_across;
}
void ON_Decal::CImpl::SetVectorAcross(const ON_3dVector& v)
{
if (_cache.vector_across != v)
{
_cache.vector_across = v;
SetParameter(ON_RDK_DECAL_VECTOR_ACROSS, ON_3dPoint(v));
}
}
double ON_Decal::CImpl::Height(void) const
{
if (ON_UNSET_VALUE == _cache.height)
{
_cache.height = GetParameter(ON_RDK_DECAL_HEIGHT, 1.0).AsDouble();
}
return _cache.height;
}
void ON_Decal::CImpl::SetHeight(double v)
{
if (_cache.height != v)
{
_cache.height = v;
SetParameter(ON_RDK_DECAL_HEIGHT, v);
}
}
double ON_Decal::CImpl::Radius(void) const
{
if (ON_UNSET_VALUE == _cache.radius)
{
_cache.radius = GetParameter(ON_RDK_DECAL_RADIUS, 1.0).AsDouble();
}
return _cache.radius;
}
void ON_Decal::CImpl::SetRadius(double v)
{
if (_cache.radius != v)
{
_cache.radius = v;
SetParameter(ON_RDK_DECAL_RADIUS, v);
}
}
bool ON_Decal::CImpl::IsVisible(void) const
{
if (unset_bool == _cache.visible)
{
_cache.visible = GetParameter(ON_RDK_DECAL_IS_VISIBLE, true).AsBool();
}
return 0 != _cache.visible;
}
void ON_Decal::CImpl::SetIsVisible(bool b)
{
const int i = b ? 1 : 0;
if (_cache.visible != i)
{
_cache.visible = i;
SetParameter(ON_RDK_DECAL_IS_VISIBLE, b);
}
}
void ON_Decal::CImpl::GetHorzSweep(double& sta, double& end) const
{
if (ON_2dPoint::UnsetPoint == _cache.horz_sweep)
{
_cache.horz_sweep.x = GetParameter(ON_RDK_DECAL_HORZ_SWEEP_STA, 0.0).AsDouble();
_cache.horz_sweep.y = GetParameter(ON_RDK_DECAL_HORZ_SWEEP_END, 0.0).AsDouble();
}
sta = _cache.horz_sweep.x;
end = _cache.horz_sweep.y;
}
void ON_Decal::CImpl::SetHorzSweep(double sta, double end)
{
const auto sweep = ON_2dPoint(sta, end);
if (_cache.horz_sweep != sweep)
{
_cache.horz_sweep = sweep;
SetParameter(ON_RDK_DECAL_HORZ_SWEEP_STA, sta);
SetParameter(ON_RDK_DECAL_HORZ_SWEEP_END, end);
}
}
void ON_Decal::CImpl::GetVertSweep(double& sta, double& end) const
{
if (ON_2dPoint::UnsetPoint == _cache.vert_sweep)
{
_cache.vert_sweep.x = GetParameter(ON_RDK_DECAL_VERT_SWEEP_STA, 0.0).AsDouble();
_cache.vert_sweep.y = GetParameter(ON_RDK_DECAL_VERT_SWEEP_END, 0.0).AsDouble();
}
sta = _cache.vert_sweep.x;
end = _cache.vert_sweep.y;
}
void ON_Decal::CImpl::SetVertSweep(double sta, double end)
{
const auto sweep = ON_2dPoint(sta, end);
if (_cache.vert_sweep != sweep)
{
_cache.vert_sweep = sweep;
SetParameter(ON_RDK_DECAL_VERT_SWEEP_STA, sta);
SetParameter(ON_RDK_DECAL_VERT_SWEEP_END, end);
}
}
void ON_Decal::CImpl::GetUVBounds(double& min_u, double& min_v, double& max_u, double& max_v) const
{
if (UNSET_4D_POINT == _cache.uv_bounds)
{
_cache.uv_bounds.x = GetParameter(ON_RDK_DECAL_MIN_U, 0.0).AsDouble();
_cache.uv_bounds.y = GetParameter(ON_RDK_DECAL_MIN_V, 0.0).AsDouble();
_cache.uv_bounds.z = GetParameter(ON_RDK_DECAL_MAX_U, 1.0).AsDouble();
_cache.uv_bounds.w = GetParameter(ON_RDK_DECAL_MAX_V, 1.0).AsDouble();
}
min_u = _cache.uv_bounds.x;
min_v = _cache.uv_bounds.y;
max_u = _cache.uv_bounds.z;
max_v = _cache.uv_bounds.w;
}
void ON_Decal::CImpl::SetUVBounds(double min_u, double min_v, double max_u, double max_v)
{
const auto bounds = ON_4dPoint(min_u, min_v, max_u, max_v);
if (_cache.uv_bounds != bounds)
{
_cache.uv_bounds = bounds;
SetParameter(ON_RDK_DECAL_MIN_U, min_u);
SetParameter(ON_RDK_DECAL_MIN_V, min_v);
SetParameter(ON_RDK_DECAL_MAX_U, max_u);
SetParameter(ON_RDK_DECAL_MAX_V, max_v);
}
}
ON_XMLNode* ON_Decal::CImpl::FindCustomNodeForRenderEngine(const ON_UUID& renderEngineId) const
{
ON_XMLNode* child_node = nullptr;
auto it = Node().GetChildIterator();
while (nullptr != (child_node = it.GetNextChild()))
{
if (child_node->TagName() == ON_RDK_DECAL_CUSTOM)
{
const ON_XMLProperty* prop = child_node->GetNamedProperty(ON_RDK_DECAL_CUSTOM_RENDERER);
if ((nullptr != prop) && (prop->GetValue().AsUuid() == renderEngineId))
return child_node;
}
}
return nullptr;
}
ON_Decal::ON_Decal()
{
_impl = new CImpl;
}
ON_Decal::ON_Decal(ON_DecalCollection& dc, ON_XMLNode& node)
{
ON_ASSERT(node.TagName() == ON_RDK_DECAL);
_impl = new CImpl(dc, node);
}
ON_Decal::ON_Decal(const ON_Decal& d)
{
_impl = new CImpl;
operator = (d);
}
ON_Decal::~ON_Decal()
{
delete _impl;
_impl = nullptr;
}
const ON_Decal& ON_Decal::operator = (const ON_Decal& d)
{
if (this != &d)
{
_impl->Node() = d._impl->Node();
}
return *this;
}
bool ON_Decal::operator == (const ON_Decal& d) const
{
// This only checks if the basic parameters are equal. It ignores any custom data.
if (TextureInstanceId() != d.TextureInstanceId()) return false;
if (Mapping() != d.Mapping()) return false;
if (Projection() != d.Projection()) return false;
if (MapToInside() != d.MapToInside()) return false;
if (Transparency() != d.Transparency()) return false;
if (Origin() != d.Origin()) return false;
if (VectorUp() != d.VectorUp()) return false;
if (VectorAcross() != d.VectorAcross()) return false;
if (Height() != d.Height()) return false;
if (Radius() != d.Radius()) return false;
double sta1 = 0.0, end1 = 0.0, sta2 = 0.0, end2 = 0.0;
GetHorzSweep(sta1, end1);
d.GetHorzSweep(sta2, end2);
if (!IsDoubleEqual(sta1, sta2)) return false;
if (!IsDoubleEqual(end1, end2)) return false;
GetVertSweep(sta1, end1);
d.GetVertSweep(sta2, end2);
if (!IsDoubleEqual(sta1, sta2)) return false;
if (!IsDoubleEqual(end1, end2)) return false;
double min_u1 = 0.0, min_v1 = 0.0, max_u1 = 0.0, max_v1 = 0.0;
double min_u2 = 0.0, min_v2 = 0.0, max_u2 = 0.0, max_v2 = 0.0;
GetUVBounds(min_u1, min_v1, max_u1, max_v1);
d.GetUVBounds(min_u2, min_v2, max_u2, max_v2);
if (!IsDoubleEqual(min_u1, min_u2)) return false;
if (!IsDoubleEqual(min_v1, min_v2)) return false;
if (!IsDoubleEqual(max_u1, max_u2)) return false;
if (!IsDoubleEqual(max_v1, max_v2)) return false;
return true;
}
bool ON_Decal::operator != (const ON_Decal& d) const
{
return !(operator == (d));
}
ON_UUID ON_Decal::TextureInstanceId(void) const
{
return _impl->TextureInstanceId();
}
void ON_Decal::SetTextureInstanceId(const ON_UUID& id)
{
_impl->SetTextureInstanceId(id);
}
ON_Decal::Mappings ON_Decal::Mapping(void) const
{
return _impl->Mapping();
}
void ON_Decal::SetMapping(Mappings m)
{
_impl->SetMapping(m);
}
ON_Decal::Projections ON_Decal::Projection(void) const
{
return _impl->Projection();
}
void ON_Decal::SetProjection(Projections p)
{
_impl->SetProjection(p);
}
bool ON_Decal::MapToInside(void) const
{
return _impl->MapToInside();
}
void ON_Decal::SetMapToInside(bool b)
{
_impl->SetMapToInside(b);
}
double ON_Decal::Transparency(void) const
{
return _impl->Transparency();
}
void ON_Decal::SetTransparency(double d)
{
_impl->SetTransparency(d);
}
ON_3dPoint ON_Decal::Origin(void) const
{
return _impl->Origin();
}
void ON_Decal::SetOrigin(const ON_3dPoint& pt)
{
_impl->SetOrigin(pt);
}
ON_3dVector ON_Decal::VectorUp(void) const
{
return _impl->VectorUp();
}
void ON_Decal::SetVectorUp(const ON_3dVector& vec)
{
_impl->SetVectorUp(vec);
}
ON_3dVector ON_Decal::VectorAcross(void) const
{
return _impl->VectorAcross();
}
void ON_Decal::SetVectorAcross(const ON_3dVector& vec)
{
_impl->SetVectorAcross(vec);
}
double ON_Decal::Height(void) const
{
return _impl->Height();
}
void ON_Decal::SetHeight(double d)
{
_impl->SetHeight(d);
}
double ON_Decal::Radius(void) const
{
return _impl->Radius();
}
void ON_Decal::SetRadius(double d)
{
_impl->SetRadius(d);
}
void ON_Decal::GetHorzSweep(double& sta, double& end) const
{
_impl->GetHorzSweep(sta, end);
}
void ON_Decal::SetHorzSweep(double sta, double end)
{
_impl->SetHorzSweep(sta, end);
}
void ON_Decal::GetVertSweep(double& sta, double& end) const
{
_impl->GetVertSweep(sta, end);
}
void ON_Decal::SetVertSweep(double sta, double end)
{
_impl->SetVertSweep(sta, end);
}
void ON_Decal::GetUVBounds(double& min_u, double& min_v, double& max_u, double& max_v) const
{
_impl->GetUVBounds(min_u, min_v, max_u, max_v);
}
void ON_Decal::SetUVBounds(double min_u, double min_v, double max_u, double max_v)
{
_impl->SetUVBounds(min_u, min_v, max_u, max_v);
}
bool ON_Decal::IsVisible(void) const
{
return _impl->IsVisible();
}
void ON_Decal::SetIsVisible(bool b)
{
_impl->SetIsVisible(b);
}
ON_UUID ON_Decal::Id(void) const
{
return _impl->Id();
}
ON__UINT32 ON_Decal::DecalCRC(void) const
{
return DataCRC(0);
}
ON__UINT32 ON_Decal::DataCRC(ON__UINT32 current_remainder) const
{
return ComputeDecalCRC(current_remainder, _impl->Node());
}
void ON_Decal::GetCustomXML(const ON_UUID& renderEngineId, ON_XMLNode& custom_param_node) const
{
custom_param_node.Clear();
custom_param_node.SetTagName(ON_RDK_DECAL_CUSTOM_PARAMS);
// Find the node for 'renderEngineId'.
const ON_XMLNode* custom_node = _impl->FindCustomNodeForRenderEngine(renderEngineId);
if (nullptr != custom_node)
{
// Get the parameter node and copy it to 'custom_param_node'.
const ON_XMLNode* param_node = custom_node->GetNamedChild(ON_RDK_DECAL_CUSTOM_PARAMS);
if (nullptr != param_node)
{
custom_param_node = *param_node;
}
}
}
bool ON_Decal::SetCustomXML(const ON_UUID& renderEngineId, const ON_XMLNode& custom_param_node)
{
if (custom_param_node.TagName() != ON_RDK_DECAL_CUSTOM_PARAMS)
return false;
// If there is already a custom node for 'renderEngineId' then delete it.
ON_XMLNode* custom_node = _impl->FindCustomNodeForRenderEngine(renderEngineId);
if (nullptr != custom_node)
{
ON_XMLNode* parent = custom_node->Parent();
if (nullptr != parent)
{
delete parent->DetachChild(*custom_node);
}
}
// Attach the new custom node and set its 'renderer' property to be the render engine id.
custom_node = _impl->Node().AttachChildNode(new ON_XMLNode(ON_RDK_DECAL_CUSTOM));
ON_XMLProperty prop(ON_RDK_DECAL_CUSTOM_RENDERER, renderEngineId);
custom_node->SetProperty(prop);
// Attach a copy of the custom param node to the custom node.
custom_node->AttachChildNode(new ON_XMLNode(custom_param_node));
return true;
}
// Copied from IRhRdkDecal::GetTextureMapping -- TODO: Refactor. [JOHN-DECAL-FIX]
bool ON_Decal::GetTextureMapping(ON_TextureMapping& mappingOut) const
{
const auto& decal = *this;
using M = ON_Decal::Mappings;
switch (decal.Mapping())
{
case M::Cylindrical:
{
// Orthogonal vectors in the end plane of cylinder.
const auto vecPlaneXAxis = decal.VectorAcross();
const auto vecPlaneYAxis = ON_CrossProduct(decal.VectorAcross(), -decal.VectorUp());
// Center for the end of the cylinder.
const auto ptCylinderEndCenter = decal.Origin() - decal.VectorUp() * decal.Height() * 0.5;
// Plane for the end of the cylinder.
ON_Plane plane(ptCylinderEndCenter, vecPlaneXAxis, vecPlaneYAxis);
// Circle for the end of the cylinder.
ON_Circle circle(plane, decal.Radius());
// The cylinder itself..
ON_Cylinder cylinder(circle, decal.Height());
// Cylindrical mapping without caps.
mappingOut.SetCylinderMapping(cylinder, false);
return true;
}
case M::Spherical:
{
// Orthogonal vectors in the equatorial plane.
const auto vecPlaneXAxis = decal.VectorAcross();
const auto vecPlaneYAxis = ON_CrossProduct(decal.VectorAcross(), -decal.VectorUp());
// Equatorial plane.
ON_Plane plane(decal.Origin(), vecPlaneXAxis, vecPlaneYAxis);
// The sphere itself.
ON_Sphere sphere;
sphere.plane = plane;
sphere.radius = decal.Radius();
// Spherical mapping.
mappingOut.SetSphereMapping(sphere);
return true;
}
case M::Planar:
{
const auto vecAcross = decal.VectorAcross();
const auto vecUp = decal.VectorUp();
const ON_Plane plane(decal.Origin(), vecAcross, vecUp);
const ON_Interval xInterval(0.0, vecAcross.Length());
const ON_Interval yInterval(0.0, vecUp.Length());
const ON_Interval zInterval(0.0, 1.0);
mappingOut.SetPlaneMapping(plane, xInterval, yInterval, zInterval);
return true;
}
default: break;
}
return false;
}
/* Class ON_DecalNodeReader
This object encapsulates the reading of all decal properties from XML nodes.
It is used by the decal CRC calculation in ComputeDecalCRC().
TODO: It could also be used by the ON_Decal XML node access.
*/
class ON_DecalNodeReader
{
public:
ON_DecalNodeReader(const ON_XMLNode* p) : m_pNode(p) { }
ON_XMLVariant Mapping(void) const { return Value(ON_RDK_DECAL_MAPPING, ON_RDK_DECAL_MAPPING_NONE); }
ON_XMLVariant Projection(void) const { return Value(ON_RDK_DECAL_PROJECTION, ON_RDK_DECAL_PROJECTION_NONE); }
ON_XMLVariant MapToInside(void) const { return Value(ON_RDK_DECAL_MAP_TO_INSIDE_ON, m_def.MapToInside()); }
ON_XMLVariant Transparency(void) const { return Value(ON_RDK_DECAL_TRANSPARENCY , m_def.Transparency()); }
ON_XMLVariant TextureInstanceId(void) const { return Value(ON_RDK_DECAL_TEXTURE_INSTANCE, m_def.TextureInstanceId()); }
ON_XMLVariant Height(void) const { return Value(ON_RDK_DECAL_HEIGHT , m_def.Height()); }
ON_XMLVariant Radius(void) const { return Value(ON_RDK_DECAL_RADIUS , m_def.Radius()); }
ON_XMLVariant Origin(void) const { return Value(ON_RDK_DECAL_ORIGIN , m_def.Origin()); }
ON_XMLVariant VectorUp(void) const { return Value(ON_RDK_DECAL_VECTOR_UP , ON_3dPoint(m_def.VectorUp())); }
ON_XMLVariant VectorAcross(void) const { return Value(ON_RDK_DECAL_VECTOR_ACROSS , ON_3dPoint(m_def.VectorAcross())); }
ON_XMLVariant HorzSweepSta(void) const { return Value(ON_RDK_DECAL_HORZ_SWEEP_STA , DefaultHorzSweepSta()); }
ON_XMLVariant HorzSweepEnd(void) const { return Value(ON_RDK_DECAL_HORZ_SWEEP_END , DefaultHorzSweepEnd()); }
ON_XMLVariant VertSweepSta(void) const { return Value(ON_RDK_DECAL_VERT_SWEEP_STA , DefaultVertSweepSta()); }
ON_XMLVariant VertSweepEnd(void) const { return Value(ON_RDK_DECAL_VERT_SWEEP_END , DefaultVertSweepEnd()); }
ON_XMLVariant MinU(void) const { return Value(ON_RDK_DECAL_MIN_U , DefaultMinU()); }
ON_XMLVariant MinV(void) const { return Value(ON_RDK_DECAL_MIN_V , DefaultMinV()); }
ON_XMLVariant MaxU(void) const { return Value(ON_RDK_DECAL_MAX_U , DefaultMaxU()); }
ON_XMLVariant MaxV(void) const { return Value(ON_RDK_DECAL_MAX_V , DefaultMaxV()); }
ON_XMLVariant IsTemporary(void) const { return Value(ON_RDK_DECAL_IS_TEMPORARY , false); }
ON_XMLVariant IsVisible(void) const { return Value(ON_RDK_DECAL_IS_VISIBLE , m_def.IsVisible()); }
ON_XMLVariant InstanceId(void) const { return Value(ON_RDK_DECAL_INSTANCE_ID , m_def.Id()); }
private:
ON_XMLVariant Value(const wchar_t* wszName, const ON_XMLVariant& vDefault) const;
double DefaultHorzSweepSta(void) const { double a, b; m_def.GetHorzSweep(a, b); return a; }
double DefaultHorzSweepEnd(void) const { double a, b; m_def.GetHorzSweep(a, b); return b; }
double DefaultVertSweepSta(void) const { double a, b; m_def.GetVertSweep(a, b); return a; }
double DefaultVertSweepEnd(void) const { double a, b; m_def.GetVertSweep(a, b); return b; }
double DefaultMinU(void) const { double a, b, c, d; m_def.GetUVBounds(a, b, c, d); return a; }
double DefaultMinV(void) const { double a, b, c, d; m_def.GetUVBounds(a, b, c, d); return b; }
double DefaultMaxU(void) const { double a, b, c, d; m_def.GetUVBounds(a, b, c, d); return c; }
double DefaultMaxV(void) const { double a, b, c, d; m_def.GetUVBounds(a, b, c, d); return d; }
private:
const ON_XMLNode* m_pNode;
const ON_Decal m_def;
};
ON_XMLVariant ON_DecalNodeReader::Value(const wchar_t* wszName, const ON_XMLVariant& vDefault) const
{
ON_XMLVariant vValue = vDefault;
if (nullptr != m_pNode)
{
const ON_XMLParameters p(*m_pNode);
p.GetParam(wszName, vValue);
}
return vValue;
}
static void DecalUpdateCRC(ON__UINT32& crc, const ON_XMLVariant value)
{
crc = value.DataCRC(crc);
}
ON__UINT32 ON_Decal::ComputeDecalCRC(ON__UINT32 crc, const ON_XMLNode& node) // Static.
{
const ON_DecalNodeReader d(&node);
const ON_wString s = d.Mapping().AsString();
const auto mapping = MappingFromString(s);
DecalUpdateCRC(crc, d.Mapping());
DecalUpdateCRC(crc, d.IsVisible());
DecalUpdateCRC(crc, d.IsTemporary());
DecalUpdateCRC(crc, d.Transparency());
DecalUpdateCRC(crc, d.TextureInstanceId());
if (Mappings::Planar == mapping)
{
DecalUpdateCRC(crc, d.MinU());
DecalUpdateCRC(crc, d.MinV());
DecalUpdateCRC(crc, d.MaxU());
DecalUpdateCRC(crc, d.MaxV());
}
else
{
DecalUpdateCRC(crc, d.Origin());
DecalUpdateCRC(crc, d.VectorUp());
DecalUpdateCRC(crc, d.VectorAcross());
DecalUpdateCRC(crc, d.Projection());
if ((Mappings::Cylindrical == mapping) || (Mappings::Spherical == mapping))
{
DecalUpdateCRC(crc, d.Radius());
DecalUpdateCRC(crc, d.MapToInside());
DecalUpdateCRC(crc, d.HorzSweepSta());
DecalUpdateCRC(crc, d.HorzSweepEnd());
if (Mappings::Cylindrical == mapping)
{
DecalUpdateCRC(crc, d.Height());
}
else
if (Mappings::Spherical == mapping)
{
DecalUpdateCRC(crc, d.VertSweepSta());
DecalUpdateCRC(crc, d.VertSweepEnd());
}
}
}
// Look for custom data nodes and for each one, find the parameter node and then iterate over its
// children and CRC the properties. For now, we will have to rely on the raw XML. A better solution
// would be to have the plug-in that created this XML calculate the CRC itself.
auto it = node.GetChildIterator();
ON_XMLNode* pChildNode = nullptr;
while (nullptr != (pChildNode = it.GetNextChild()))
{
if (pChildNode->TagName() != ON_RDK_DECAL_CUSTOM)
continue; // Not a custom data node.
ON_XMLProperty* prop = pChildNode->GetNamedProperty(ON_RDK_DECAL_CUSTOM_RENDERER);
if (nullptr != prop)
{
// Include the render engine id.
const ON_UUID uuid = prop->GetValue().AsUuid();
crc = ON_CRC32(crc, sizeof(uuid), &uuid);
}
// Find the custom parameter node.
const ON_XMLNode* pParamNode = pChildNode->GetNamedChild(ON_RDK_DECAL_CUSTOM_PARAMS);
if (nullptr != pParamNode)
{
// Iterate over the nodes inside the custom parameter node.
const ON_XMLParameters p(*pParamNode);
auto* pIterator = p.NewIterator();
ON_wString sParamName;
ON_XMLVariant vParamValue;
while (pIterator->Next(sParamName, vParamValue))
{
DecalUpdateCRC(crc, vParamValue);
}
delete pIterator;
}
}
// Make sure it's not zero which would mean 'nil'.
if (0 == crc)
crc--;
return crc;
}
// ON_DecalCollection
ON_DecalCollection::~ON_DecalCollection()
{
ClearDecalArray();
}
int ON_DecalCollection::FindDecalIndex(const ON_UUID& id) const
{
for (int i = 0; i < m_decals.Count(); i++)
{
if (m_decals[i]->Id() == id)
return i;
}
return -1;
}
ON_Decal* ON_DecalCollection::AddDecal(void)
{
// Ensure the array is populated before adding a new decal.
GetDecalArray();
ON_Decal* decal = nullptr;
ON_XMLNode* decals_node = m_root_node.CreateNodeAtPath(ON_RDK_UD_ROOT ON_XML_SLASH ON_RDK_DECALS);
if (nullptr != decals_node)
{
// Add an XML node for the new decal.
auto* decal_node = new ON_XMLNode(ON_RDK_DECAL);
decals_node->AttachChildNode(decal_node);