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//-----------------------------------------------------------------------------

// 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.

//-----------------------------------------------------------------------------

#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, 4, false, true, false },

{ Request::Type::IMAGE, Entity::Type::IMAGE, 4, 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,hEntity> *entity,

IdList<Param,hParam> *param)

{

int points = 0;

Entity::Type et = (Entity::Type)0;

bool hasNormal = false;

bool hasDistance = false;

int i;

// Request-specific generation.

switch(type) {

case Type::TTF_TEXT: {

double actualAspectRatio = SS.fonts.AspectRatio(font, str);

if(EXACT(actualAspectRatio != 0.0)) {

// We could load the font, so use the actual value.

aspectRatio = actualAspectRatio;

}

if(EXACT(aspectRatio == 0.0)) {

// We couldn't load the font and we don't have anything saved,

// so just use 1:1, which is valid for the missing font symbol anyhow.

aspectRatio = 1.0;

}

break;

}

case Type::IMAGE: {

auto image = SS.images.find(file);

if(image != SS.images.end()) {

std::shared_ptr<Pixmap> pixmap = (*image).second;

if(pixmap != NULL) {

aspectRatio = (double)pixmap->width / (double)pixmap->height;

}

if(EXACT(aspectRatio == 0.0)) {

aspectRatio = 1.0;

}

break;

}

default: // most requests don't do anything else

break;

}

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.file = file;

e.aspectRatio = aspectRatio;

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;

p.construction = e.construction;

if(workplane == Entity::FREE_IN_3D) {

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;

n.construction = e.construction;

if(workplane == Entity::FREE_IN_3D) {

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 == Request::HREQUEST_REFERENCE_XY) {

s = "#XY";

} else if(h == Request::HREQUEST_REFERENCE_YZ) {

s = "#YZ";

} else if(h == Request::HREQUEST_REFERENCE_ZX) {

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;

case Type::IMAGE: s = "image"; 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 == h.entity(0)) ? 0 : -1;

}

for(int i = 0; i < MAX_POINTS_IN_ENTITY; i++) {

if(he == h.entity(i + 1)) {

return i;

}

return -1;

}

hParam Request::AddParam(IdList<Param,hParam> *param, hParam hp) {

Param pa = {};

pa.h = hp;

param->Add(&pa);

return hp;

}