//----------------------------------------------------------------------------- // Implementation of our Request class; a request is a user-created thing // that will generate an entity (line, curve) when the sketch is generated, // in the same way that other entities are generated automatically, like // by an extrude or a step and repeat. // // Copyright 2008-2013 Jonathan Westhues. //----------------------------------------------------------------------------- #include "solvespace.h" const hRequest Request::HREQUEST_REFERENCE_XY = { 1 }; const hRequest Request::HREQUEST_REFERENCE_YZ = { 2 }; const hRequest Request::HREQUEST_REFERENCE_ZX = { 3 }; struct EntReqMapping { Request::Type reqType; Entity::Type entType; int points; bool useExtraPoints; bool hasNormal; bool hasDistance; }; static const EntReqMapping EntReqMap[] = { // request type entity type pts xtra? norml dist { Request::Type::WORKPLANE, Entity::Type::WORKPLANE, 1, false, true, false }, { Request::Type::DATUM_POINT, (Entity::Type)0, 1, false, false, false }, { Request::Type::LINE_SEGMENT, Entity::Type::LINE_SEGMENT, 2, false, false, false }, { Request::Type::CUBIC, Entity::Type::CUBIC, 4, true, false, false }, { Request::Type::CUBIC_PERIODIC, Entity::Type::CUBIC_PERIODIC, 3, true, false, false }, { Request::Type::CIRCLE, Entity::Type::CIRCLE, 1, false, true, true }, { Request::Type::ARC_OF_CIRCLE, Entity::Type::ARC_OF_CIRCLE, 3, false, true, false }, { Request::Type::TTF_TEXT, Entity::Type::TTF_TEXT, 2, false, true, false }, }; static void CopyEntityInfo(const EntReqMapping *te, int extraPoints, Entity::Type *ent, Request::Type *req, int *pts, bool *hasNormal, bool *hasDistance) { int points = te->points; if(te->useExtraPoints) points += extraPoints; if(ent) *ent = te->entType; if(req) *req = te->reqType; if(pts) *pts = points; if(hasNormal) *hasNormal = te->hasNormal; if(hasDistance) *hasDistance = te->hasDistance; } bool EntReqTable::GetRequestInfo(Request::Type req, int extraPoints, Entity::Type *ent, int *pts, bool *hasNormal, bool *hasDistance) { for(const EntReqMapping &te : EntReqMap) { if(req == te.reqType) { CopyEntityInfo(&te, extraPoints, ent, NULL, pts, hasNormal, hasDistance); return true; } } return false; } bool EntReqTable::GetEntityInfo(Entity::Type ent, int extraPoints, Request::Type *req, int *pts, bool *hasNormal, bool *hasDistance) { for(const EntReqMapping &te : EntReqMap) { if(ent == te.entType) { CopyEntityInfo(&te, extraPoints, NULL, req, pts, hasNormal, hasDistance); return true; } } return false; } Request::Type EntReqTable::GetRequestForEntity(Entity::Type ent) { Request::Type req; ssassert(GetEntityInfo(ent, 0, &req, NULL, NULL, NULL), "No entity for request"); return req; } void Request::Generate(IdList *entity, IdList *param) const { int points = 0; Entity::Type et; bool hasNormal = false; bool hasDistance = false; int i; Entity e = {}; EntReqTable::GetRequestInfo(type, extraPoints, &et, &points, &hasNormal, &hasDistance); // Generate the entity that's specific to this request. e.type = et; e.extraPoints = extraPoints; e.group = group; e.style = style; e.workplane = workplane; e.construction = construction; e.str = str; e.font = font; e.h = h.entity(0); // And generate entities for the points for(i = 0; i < points; i++) { Entity p = {}; p.workplane = workplane; // points start from entity 1, except for datum point case p.h = h.entity(i+((et != (Entity::Type)0) ? 1 : 0)); p.group = group; p.style = style; if(type == Request::Type::ARC_OF_CIRCLE && i == 0) { // mark arc center point as construction, since it shouldn't be included // in bounding box calculation p.construction = true; } if(workplane.v == Entity::FREE_IN_3D.v) { p.type = Entity::Type::POINT_IN_3D; // params for x y z p.param[0] = AddParam(param, h.param(16 + 3*i + 0)); p.param[1] = AddParam(param, h.param(16 + 3*i + 1)); p.param[2] = AddParam(param, h.param(16 + 3*i + 2)); } else { p.type = Entity::Type::POINT_IN_2D; // params for u v p.param[0] = AddParam(param, h.param(16 + 3*i + 0)); p.param[1] = AddParam(param, h.param(16 + 3*i + 1)); } entity->Add(&p); e.point[i] = p.h; } if(hasNormal) { Entity n = {}; n.workplane = workplane; n.h = h.entity(32); n.group = group; n.style = style; if(workplane.v == Entity::FREE_IN_3D.v) { n.type = Entity::Type::NORMAL_IN_3D; n.param[0] = AddParam(param, h.param(32+0)); n.param[1] = AddParam(param, h.param(32+1)); n.param[2] = AddParam(param, h.param(32+2)); n.param[3] = AddParam(param, h.param(32+3)); } else { n.type = Entity::Type::NORMAL_IN_2D; // and this is just a copy of the workplane quaternion, // so no params required } ssassert(points >= 1, "Positioning a normal requires a point"); // The point determines where the normal gets displayed on-screen; // it's entirely cosmetic. n.point[0] = e.point[0]; entity->Add(&n); e.normal = n.h; } if(hasDistance) { Entity d = {}; d.workplane = workplane; d.h = h.entity(64); d.group = group; d.style = style; d.type = Entity::Type::DISTANCE; d.param[0] = AddParam(param, h.param(64)); entity->Add(&d); e.distance = d.h; } if(et != (Entity::Type)0) entity->Add(&e); } std::string Request::DescriptionString() const { const char *s; if(h.v == Request::HREQUEST_REFERENCE_XY.v) { s = "#XY"; } else if(h.v == Request::HREQUEST_REFERENCE_YZ.v) { s = "#YZ"; } else if(h.v == Request::HREQUEST_REFERENCE_ZX.v) { s = "#ZX"; } else { switch(type) { case Type::WORKPLANE: s = "workplane"; break; case Type::DATUM_POINT: s = "datum-point"; break; case Type::LINE_SEGMENT: s = "line-segment"; break; case Type::CUBIC: s = "cubic-bezier"; break; case Type::CUBIC_PERIODIC: s = "periodic-cubic"; break; case Type::CIRCLE: s = "circle"; break; case Type::ARC_OF_CIRCLE: s = "arc-of-circle;"; break; case Type::TTF_TEXT: s = "ttf-text"; break; } } ssassert(s != NULL, "Unexpected request type"); return ssprintf("r%03x-%s", h.v, s); } int Request::IndexOfPoint(hEntity he) const { if(type == Type::DATUM_POINT) { return (he.v == h.entity(0).v) ? 0 : -1; } for(int i = 0; i < MAX_POINTS_IN_ENTITY; i++) { if(he.v == h.entity(i + 1).v) { return i; } } return -1; } hParam Request::AddParam(IdList *param, hParam hp) { Param pa = {}; pa.h = hp; param->Add(&pa); return hp; }