solvespace/src/file.cpp
whitequark 46ab541444 Add a setting that permits a group to include redundant constraints.
This setting is generally useful, but it especially shines when
assembling, since the "same orientation" and "parallel" constraints
remove three and two rotational degrees of freedom, which makes them
impossible to use with 3d "point on line" constraint that removes
two spatial and two rotational degrees of freedom.

The setting is not enabled for all imported groups by default
because it exhibits some edge case failures. For example:
  * draw two line segments sharing a point,
  * constrain lengths of line segments,
  * constrain line segments perpendicular,
  * constrain line segments to a 90° angle.

This is a truly degenerate case and so it is not considered very
important. However, we can fix this later by using Eigen::SparseQR.
2016-01-22 08:53:04 +00:00

859 lines
32 KiB
C++

//-----------------------------------------------------------------------------
// Routines to write and read our .slvs file format.
//
// Copyright 2008-2013 Jonathan Westhues.
//-----------------------------------------------------------------------------
#include "solvespace.h"
#define VERSION_STRING "\261\262\263" "SolveSpaceREVa"
static int StrStartsWith(const char *str, const char *start) {
return memcmp(str, start, strlen(start)) == 0;
}
//-----------------------------------------------------------------------------
// Clear and free all the dynamic memory associated with our currently-loaded
// sketch. This does not leave the program in an acceptable state (with the
// references created, and so on), so anyone calling this must fix that later.
//-----------------------------------------------------------------------------
void SolveSpaceUI::ClearExisting(void) {
UndoClearStack(&redo);
UndoClearStack(&undo);
Group *g;
for(g = SK.group.First(); g; g = SK.group.NextAfter(g)) {
g->Clear();
}
SK.constraint.Clear();
SK.request.Clear();
SK.group.Clear();
SK.style.Clear();
SK.entity.Clear();
SK.param.Clear();
}
hGroup SolveSpaceUI::CreateDefaultDrawingGroup(void) {
Group g = {};
// And an empty group, for the first stuff the user draws.
g.visible = true;
g.type = Group::DRAWING_WORKPLANE;
g.subtype = Group::WORKPLANE_BY_POINT_ORTHO;
g.predef.q = Quaternion::From(1, 0, 0, 0);
hRequest hr = Request::HREQUEST_REFERENCE_XY;
g.predef.origin = hr.entity(1);
g.name = "sketch-in-plane";
SK.group.AddAndAssignId(&g);
SK.GetGroup(g.h)->activeWorkplane = g.h.entity(0);
return g.h;
}
void SolveSpaceUI::NewFile(void) {
ClearExisting();
// Our initial group, that contains the references.
Group g = {};
g.visible = true;
g.name = "#references";
g.type = Group::DRAWING_3D;
g.h = Group::HGROUP_REFERENCES;
SK.group.Add(&g);
// Let's create three two-d coordinate systems, for the coordinate
// planes; these are our references, present in every sketch.
Request r = {};
r.type = Request::WORKPLANE;
r.group = Group::HGROUP_REFERENCES;
r.workplane = Entity::FREE_IN_3D;
r.h = Request::HREQUEST_REFERENCE_XY;
SK.request.Add(&r);
r.h = Request::HREQUEST_REFERENCE_YZ;
SK.request.Add(&r);
r.h = Request::HREQUEST_REFERENCE_ZX;
SK.request.Add(&r);
CreateDefaultDrawingGroup();
}
const SolveSpaceUI::SaveTable SolveSpaceUI::SAVED[] = {
{ 'g', "Group.h.v", 'x', &(SS.sv.g.h.v) },
{ 'g', "Group.type", 'd', &(SS.sv.g.type) },
{ 'g', "Group.order", 'd', &(SS.sv.g.order) },
{ 'g', "Group.name", 'S', &(SS.sv.g.name) },
{ 'g', "Group.activeWorkplane.v", 'x', &(SS.sv.g.activeWorkplane.v) },
{ 'g', "Group.opA.v", 'x', &(SS.sv.g.opA.v) },
{ 'g', "Group.opB.v", 'x', &(SS.sv.g.opB.v) },
{ 'g', "Group.valA", 'f', &(SS.sv.g.valA) },
{ 'g', "Group.valB", 'f', &(SS.sv.g.valB) },
{ 'g', "Group.valC", 'f', &(SS.sv.g.valB) },
{ 'g', "Group.color", 'c', &(SS.sv.g.color) },
{ 'g', "Group.subtype", 'd', &(SS.sv.g.subtype) },
{ 'g', "Group.skipFirst", 'b', &(SS.sv.g.skipFirst) },
{ 'g', "Group.meshCombine", 'd', &(SS.sv.g.meshCombine) },
{ 'g', "Group.forceToMesh", 'd', &(SS.sv.g.forceToMesh) },
{ 'g', "Group.predef.q.w", 'f', &(SS.sv.g.predef.q.w) },
{ 'g', "Group.predef.q.vx", 'f', &(SS.sv.g.predef.q.vx) },
{ 'g', "Group.predef.q.vy", 'f', &(SS.sv.g.predef.q.vy) },
{ 'g', "Group.predef.q.vz", 'f', &(SS.sv.g.predef.q.vz) },
{ 'g', "Group.predef.origin.v", 'x', &(SS.sv.g.predef.origin.v) },
{ 'g', "Group.predef.entityB.v", 'x', &(SS.sv.g.predef.entityB.v) },
{ 'g', "Group.predef.entityC.v", 'x', &(SS.sv.g.predef.entityC.v) },
{ 'g', "Group.predef.swapUV", 'b', &(SS.sv.g.predef.swapUV) },
{ 'g', "Group.predef.negateU", 'b', &(SS.sv.g.predef.negateU) },
{ 'g', "Group.predef.negateV", 'b', &(SS.sv.g.predef.negateV) },
{ 'g', "Group.visible", 'b', &(SS.sv.g.visible) },
{ 'g', "Group.suppress", 'b', &(SS.sv.g.suppress) },
{ 'g', "Group.relaxConstraints", 'b', &(SS.sv.g.relaxConstraints) },
{ 'g', "Group.allowRedundant", 'b', &(SS.sv.g.allowRedundant) },
{ 'g', "Group.allDimsReference", 'b', &(SS.sv.g.allDimsReference) },
{ 'g', "Group.scale", 'f', &(SS.sv.g.scale) },
{ 'g', "Group.remap", 'M', &(SS.sv.g.remap) },
{ 'g', "Group.impFile", 'S', &(SS.sv.g.impFile) },
{ 'g', "Group.impFileRel", 'S', &(SS.sv.g.impFileRel) },
{ 'p', "Param.h.v.", 'x', &(SS.sv.p.h.v) },
{ 'p', "Param.val", 'f', &(SS.sv.p.val) },
{ 'r', "Request.h.v", 'x', &(SS.sv.r.h.v) },
{ 'r', "Request.type", 'd', &(SS.sv.r.type) },
{ 'r', "Request.extraPoints", 'd', &(SS.sv.r.extraPoints) },
{ 'r', "Request.workplane.v", 'x', &(SS.sv.r.workplane.v) },
{ 'r', "Request.group.v", 'x', &(SS.sv.r.group.v) },
{ 'r', "Request.construction", 'b', &(SS.sv.r.construction) },
{ 'r', "Request.style", 'x', &(SS.sv.r.style) },
{ 'r', "Request.str", 'S', &(SS.sv.r.str) },
{ 'r', "Request.font", 'S', &(SS.sv.r.font) },
{ 'e', "Entity.h.v", 'x', &(SS.sv.e.h.v) },
{ 'e', "Entity.type", 'd', &(SS.sv.e.type) },
{ 'e', "Entity.construction", 'b', &(SS.sv.e.construction) },
{ 'e', "Entity.style", 'x', &(SS.sv.e.style) },
{ 'e', "Entity.str", 'S', &(SS.sv.e.str) },
{ 'e', "Entity.font", 'S', &(SS.sv.e.font) },
{ 'e', "Entity.point[0].v", 'x', &(SS.sv.e.point[0].v) },
{ 'e', "Entity.point[1].v", 'x', &(SS.sv.e.point[1].v) },
{ 'e', "Entity.point[2].v", 'x', &(SS.sv.e.point[2].v) },
{ 'e', "Entity.point[3].v", 'x', &(SS.sv.e.point[3].v) },
{ 'e', "Entity.point[4].v", 'x', &(SS.sv.e.point[4].v) },
{ 'e', "Entity.point[5].v", 'x', &(SS.sv.e.point[5].v) },
{ 'e', "Entity.point[6].v", 'x', &(SS.sv.e.point[6].v) },
{ 'e', "Entity.point[7].v", 'x', &(SS.sv.e.point[7].v) },
{ 'e', "Entity.point[8].v", 'x', &(SS.sv.e.point[8].v) },
{ 'e', "Entity.point[9].v", 'x', &(SS.sv.e.point[9].v) },
{ 'e', "Entity.point[10].v", 'x', &(SS.sv.e.point[10].v) },
{ 'e', "Entity.point[11].v", 'x', &(SS.sv.e.point[11].v) },
{ 'e', "Entity.extraPoints", 'd', &(SS.sv.e.extraPoints) },
{ 'e', "Entity.normal.v", 'x', &(SS.sv.e.normal.v) },
{ 'e', "Entity.distance.v", 'x', &(SS.sv.e.distance.v) },
{ 'e', "Entity.workplane.v", 'x', &(SS.sv.e.workplane.v) },
{ 'e', "Entity.actPoint.x", 'f', &(SS.sv.e.actPoint.x) },
{ 'e', "Entity.actPoint.y", 'f', &(SS.sv.e.actPoint.y) },
{ 'e', "Entity.actPoint.z", 'f', &(SS.sv.e.actPoint.z) },
{ 'e', "Entity.actNormal.w", 'f', &(SS.sv.e.actNormal.w) },
{ 'e', "Entity.actNormal.vx", 'f', &(SS.sv.e.actNormal.vx) },
{ 'e', "Entity.actNormal.vy", 'f', &(SS.sv.e.actNormal.vy) },
{ 'e', "Entity.actNormal.vz", 'f', &(SS.sv.e.actNormal.vz) },
{ 'e', "Entity.actDistance", 'f', &(SS.sv.e.actDistance) },
{ 'e', "Entity.actVisible", 'b', &(SS.sv.e.actVisible), },
{ 'c', "Constraint.h.v", 'x', &(SS.sv.c.h.v) },
{ 'c', "Constraint.type", 'd', &(SS.sv.c.type) },
{ 'c', "Constraint.group.v", 'x', &(SS.sv.c.group.v) },
{ 'c', "Constraint.workplane.v", 'x', &(SS.sv.c.workplane.v) },
{ 'c', "Constraint.valA", 'f', &(SS.sv.c.valA) },
{ 'c', "Constraint.ptA.v", 'x', &(SS.sv.c.ptA.v) },
{ 'c', "Constraint.ptB.v", 'x', &(SS.sv.c.ptB.v) },
{ 'c', "Constraint.entityA.v", 'x', &(SS.sv.c.entityA.v) },
{ 'c', "Constraint.entityB.v", 'x', &(SS.sv.c.entityB.v) },
{ 'c', "Constraint.entityC.v", 'x', &(SS.sv.c.entityC.v) },
{ 'c', "Constraint.entityD.v", 'x', &(SS.sv.c.entityD.v) },
{ 'c', "Constraint.other", 'b', &(SS.sv.c.other) },
{ 'c', "Constraint.other2", 'b', &(SS.sv.c.other2) },
{ 'c', "Constraint.reference", 'b', &(SS.sv.c.reference) },
{ 'c', "Constraint.comment", 'S', &(SS.sv.c.comment) },
{ 'c', "Constraint.disp.offset.x", 'f', &(SS.sv.c.disp.offset.x) },
{ 'c', "Constraint.disp.offset.y", 'f', &(SS.sv.c.disp.offset.y) },
{ 'c', "Constraint.disp.offset.z", 'f', &(SS.sv.c.disp.offset.z) },
{ 'c', "Constraint.disp.style", 'x', &(SS.sv.c.disp.style) },
{ 's', "Style.h.v", 'x', &(SS.sv.s.h.v) },
{ 's', "Style.name", 'S', &(SS.sv.s.name) },
{ 's', "Style.width", 'f', &(SS.sv.s.width) },
{ 's', "Style.widthAs", 'd', &(SS.sv.s.widthAs) },
{ 's', "Style.textHeight", 'f', &(SS.sv.s.textHeight) },
{ 's', "Style.textHeightAs", 'd', &(SS.sv.s.textHeightAs) },
{ 's', "Style.textAngle", 'f', &(SS.sv.s.textAngle) },
{ 's', "Style.textOrigin", 'x', &(SS.sv.s.textOrigin) },
{ 's', "Style.color", 'c', &(SS.sv.s.color) },
{ 's', "Style.fillColor", 'c', &(SS.sv.s.fillColor) },
{ 's', "Style.filled", 'b', &(SS.sv.s.filled) },
{ 's', "Style.visible", 'b', &(SS.sv.s.visible) },
{ 's', "Style.exportable", 'b', &(SS.sv.s.exportable) },
{ 0, NULL, 0, NULL }
};
union SAVEDptr {
IdList<EntityMap,EntityId> M;
/* std::string S; */
bool b;
RgbaColor c;
int d;
double f;
uint32_t x;
};
void SolveSpaceUI::SaveUsingTable(int type) {
int i;
for(i = 0; SAVED[i].type != 0; i++) {
if(SAVED[i].type != type) continue;
int fmt = SAVED[i].fmt;
union SAVEDptr *p = (union SAVEDptr *)SAVED[i].ptr;
// Any items that aren't specified are assumed to be zero
if(fmt == 'S' && ((std::string*)p)->empty()) continue;
if(fmt == 'd' && p->d == 0) continue;
if(fmt == 'f' && EXACT(p->f == 0.0)) continue;
if(fmt == 'x' && p->x == 0) continue;
fprintf(fh, "%s=", SAVED[i].desc);
switch(fmt) {
case 'S': fprintf(fh, "%s", ((std::string*)p)->c_str()); break;
case 'b': fprintf(fh, "%d", p->b ? 1 : 0); break;
case 'c': fprintf(fh, "%08x", p->c.ToPackedInt()); break;
case 'd': fprintf(fh, "%d", p->d); break;
case 'f': fprintf(fh, "%.20f", p->f); break;
case 'x': fprintf(fh, "%08x", p->x); break;
case 'M': {
int j;
fprintf(fh, "{\n");
for(j = 0; j < p->M.n; j++) {
EntityMap *em = &(p->M.elem[j]);
fprintf(fh, " %d %08x %d\n",
em->h.v, em->input.v, em->copyNumber);
}
fprintf(fh, "}");
break;
}
default: oops();
}
fprintf(fh, "\n");
}
}
bool SolveSpaceUI::SaveToFile(const std::string &filename) {
// Make sure all the entities are regenerated up to date, since they
// will be exported. We reload the imported files because that rewrites
// the impFileRel for our possibly-new filename.
SS.ScheduleShowTW();
SS.ReloadAllImported();
SS.GenerateAll(0, INT_MAX);
fh = ssfopen(filename, "wb");
if(!fh) {
Error("Couldn't write to file '%s'", filename.c_str());
return false;
}
fprintf(fh, "%s\n\n\n", VERSION_STRING);
int i, j;
for(i = 0; i < SK.group.n; i++) {
sv.g = SK.group.elem[i];
SaveUsingTable('g');
fprintf(fh, "AddGroup\n\n");
}
for(i = 0; i < SK.param.n; i++) {
sv.p = SK.param.elem[i];
SaveUsingTable('p');
fprintf(fh, "AddParam\n\n");
}
for(i = 0; i < SK.request.n; i++) {
sv.r = SK.request.elem[i];
SaveUsingTable('r');
fprintf(fh, "AddRequest\n\n");
}
for(i = 0; i < SK.entity.n; i++) {
(SK.entity.elem[i]).CalculateNumerical(true);
sv.e = SK.entity.elem[i];
SaveUsingTable('e');
fprintf(fh, "AddEntity\n\n");
}
for(i = 0; i < SK.constraint.n; i++) {
sv.c = SK.constraint.elem[i];
SaveUsingTable('c');
fprintf(fh, "AddConstraint\n\n");
}
for(i = 0; i < SK.style.n; i++) {
sv.s = SK.style.elem[i];
if(sv.s.h.v >= Style::FIRST_CUSTOM) {
SaveUsingTable('s');
fprintf(fh, "AddStyle\n\n");
}
}
// A group will have either a mesh or a shell, but not both; but the code
// to print either of those just does nothing if the mesh/shell is empty.
SMesh *m = &(SK.group.elem[SK.group.n-1].runningMesh);
for(i = 0; i < m->l.n; i++) {
STriangle *tr = &(m->l.elem[i]);
fprintf(fh, "Triangle %08x %08x "
"%.20f %.20f %.20f %.20f %.20f %.20f %.20f %.20f %.20f\n",
tr->meta.face, tr->meta.color.ToPackedInt(),
CO(tr->a), CO(tr->b), CO(tr->c));
}
SShell *s = &(SK.group.elem[SK.group.n-1].runningShell);
SSurface *srf;
for(srf = s->surface.First(); srf; srf = s->surface.NextAfter(srf)) {
fprintf(fh, "Surface %08x %08x %08x %d %d\n",
srf->h.v, srf->color.ToPackedInt(), srf->face, srf->degm, srf->degn);
for(i = 0; i <= srf->degm; i++) {
for(j = 0; j <= srf->degn; j++) {
fprintf(fh, "SCtrl %d %d %.20f %.20f %.20f Weight %20.20f\n",
i, j, CO(srf->ctrl[i][j]), srf->weight[i][j]);
}
}
STrimBy *stb;
for(stb = srf->trim.First(); stb; stb = srf->trim.NextAfter(stb)) {
fprintf(fh, "TrimBy %08x %d %.20f %.20f %.20f %.20f %.20f %.20f\n",
stb->curve.v, stb->backwards ? 1 : 0,
CO(stb->start), CO(stb->finish));
}
fprintf(fh, "AddSurface\n");
}
SCurve *sc;
for(sc = s->curve.First(); sc; sc = s->curve.NextAfter(sc)) {
fprintf(fh, "Curve %08x %d %d %08x %08x\n",
sc->h.v,
sc->isExact ? 1 : 0, sc->exact.deg,
sc->surfA.v, sc->surfB.v);
if(sc->isExact) {
for(i = 0; i <= sc->exact.deg; i++) {
fprintf(fh, "CCtrl %d %.20f %.20f %.20f Weight %.20f\n",
i, CO(sc->exact.ctrl[i]), sc->exact.weight[i]);
}
}
SCurvePt *scpt;
for(scpt = sc->pts.First(); scpt; scpt = sc->pts.NextAfter(scpt)) {
fprintf(fh, "CurvePt %d %.20f %.20f %.20f\n",
scpt->vertex ? 1 : 0, CO(scpt->p));
}
fprintf(fh, "AddCurve\n");
}
fclose(fh);
return true;
}
void SolveSpaceUI::LoadUsingTable(char *key, char *val) {
int i;
for(i = 0; SAVED[i].type != 0; i++) {
if(strcmp(SAVED[i].desc, key)==0) {
union SAVEDptr *p = (union SAVEDptr *)SAVED[i].ptr;
unsigned int u = 0;
switch(SAVED[i].fmt) {
case 'S': (*(std::string*)p) = val; break;
case 'b': p->b = (atoi(val) != 0); break;
case 'd': p->d = atoi(val); break;
case 'f': p->f = atof(val); break;
case 'x': sscanf(val, "%x", &u); p->x = u; break;
case 'c':
sscanf(val, "%x", &u);
p->c = RgbaColor::FromPackedInt(u);
break;
case 'P':
*((std::string*)p) = val;
break;
case 'M': {
// Don't clear this list! When the group gets added, it
// makes a shallow copy, so that would result in us
// freeing memory that we want to keep around. Just
// zero it out so that new memory is allocated.
p->M = {};
for(;;) {
EntityMap em;
char line2[1024];
if (fgets(line2, (int)sizeof(line2), fh) == NULL)
break;
if(sscanf(line2, "%d %x %d", &(em.h.v), &(em.input.v),
&(em.copyNumber)) == 3)
{
p->M.Add(&em);
} else {
break;
}
}
break;
}
default: oops();
}
break;
}
}
if(SAVED[i].type == 0) {
fileLoadError = true;
}
}
bool SolveSpaceUI::LoadFromFile(const std::string &filename) {
allConsistent = false;
fileLoadError = false;
fh = ssfopen(filename, "rb");
if(!fh) {
Error("Couldn't read from file '%s'", filename.c_str());
return false;
}
ClearExisting();
sv = {};
sv.g.scale = 1; // default is 1, not 0; so legacy files need this
char line[1024];
while(fgets(line, (int)sizeof(line), fh)) {
char *s = strchr(line, '\n');
if(s) *s = '\0';
// We should never get files with \r characters in them, but mailers
// will sometimes mangle attachments.
s = strchr(line, '\r');
if(s) *s = '\0';
if(*line == '\0') continue;
char *e = strchr(line, '=');
if(e) {
*e = '\0';
char *key = line, *val = e+1;
LoadUsingTable(key, val);
} else if(strcmp(line, "AddGroup")==0) {
SK.group.Add(&(sv.g));
sv.g = {};
sv.g.scale = 1; // default is 1, not 0; so legacy files need this
} else if(strcmp(line, "AddParam")==0) {
// params are regenerated, but we want to preload the values
// for initial guesses
SK.param.Add(&(sv.p));
sv.p = {};
} else if(strcmp(line, "AddEntity")==0) {
// entities are regenerated
} else if(strcmp(line, "AddRequest")==0) {
SK.request.Add(&(sv.r));
sv.r = {};
} else if(strcmp(line, "AddConstraint")==0) {
SK.constraint.Add(&(sv.c));
sv.c = {};
} else if(strcmp(line, "AddStyle")==0) {
SK.style.Add(&(sv.s));
sv.s = {};
} else if(strcmp(line, VERSION_STRING)==0) {
// do nothing, version string
} else if(StrStartsWith(line, "Triangle ") ||
StrStartsWith(line, "Surface ") ||
StrStartsWith(line, "SCtrl ") ||
StrStartsWith(line, "TrimBy ") ||
StrStartsWith(line, "Curve ") ||
StrStartsWith(line, "CCtrl ") ||
StrStartsWith(line, "CurvePt ") ||
strcmp(line, "AddSurface")==0 ||
strcmp(line, "AddCurve")==0)
{
// ignore the mesh or shell, since we regenerate that
} else {
fileLoadError = true;
}
}
fclose(fh);
if(fileLoadError) {
Error("Unrecognized data in file. This file may be corrupt, or "
"from a new version of the program.");
// At least leave the program in a non-crashing state.
if(SK.group.n == 0) {
NewFile();
}
}
return true;
}
bool SolveSpaceUI::LoadEntitiesFromFile(const std::string &filename, EntityList *le,
SMesh *m, SShell *sh)
{
SSurface srf = {};
SCurve crv = {};
fh = ssfopen(filename, "rb");
if(!fh) return false;
le->Clear();
sv = {};
char line[1024];
while(fgets(line, (int)sizeof(line), fh)) {
char *s = strchr(line, '\n');
if(s) *s = '\0';
// We should never get files with \r characters in them, but mailers
// will sometimes mangle attachments.
s = strchr(line, '\r');
if(s) *s = '\0';
if(*line == '\0') continue;
char *e = strchr(line, '=');
if(e) {
*e = '\0';
char *key = line, *val = e+1;
LoadUsingTable(key, val);
} else if(strcmp(line, "AddGroup")==0) {
// Don't leak memory; these get allocated whether we want them
// or not.
sv.g.remap.Clear();
} else if(strcmp(line, "AddParam")==0) {
} else if(strcmp(line, "AddEntity")==0) {
le->Add(&(sv.e));
sv.e = {};
} else if(strcmp(line, "AddRequest")==0) {
} else if(strcmp(line, "AddConstraint")==0) {
} else if(strcmp(line, "AddStyle")==0) {
} else if(strcmp(line, VERSION_STRING)==0) {
} else if(StrStartsWith(line, "Triangle ")) {
STriangle tr = {};
unsigned int rgba = 0;
if(sscanf(line, "Triangle %x %x "
"%lf %lf %lf %lf %lf %lf %lf %lf %lf",
&(tr.meta.face), &rgba,
&(tr.a.x), &(tr.a.y), &(tr.a.z),
&(tr.b.x), &(tr.b.y), &(tr.b.z),
&(tr.c.x), &(tr.c.y), &(tr.c.z)) != 11) {
oops();
}
tr.meta.color = RgbaColor::FromPackedInt((uint32_t)rgba);
m->AddTriangle(&tr);
} else if(StrStartsWith(line, "Surface ")) {
unsigned int rgba = 0;
if(sscanf(line, "Surface %x %x %x %d %d",
&(srf.h.v), &rgba, &(srf.face),
&(srf.degm), &(srf.degn)) != 5) {
oops();
}
srf.color = RgbaColor::FromPackedInt((uint32_t)rgba);
} else if(StrStartsWith(line, "SCtrl ")) {
int i, j;
Vector c;
double w;
if(sscanf(line, "SCtrl %d %d %lf %lf %lf Weight %lf",
&i, &j, &(c.x), &(c.y), &(c.z), &w) != 6)
{
oops();
}
srf.ctrl[i][j] = c;
srf.weight[i][j] = w;
} else if(StrStartsWith(line, "TrimBy ")) {
STrimBy stb = {};
int backwards;
if(sscanf(line, "TrimBy %x %d %lf %lf %lf %lf %lf %lf",
&(stb.curve.v), &backwards,
&(stb.start.x), &(stb.start.y), &(stb.start.z),
&(stb.finish.x), &(stb.finish.y), &(stb.finish.z)) != 8)
{
oops();
}
stb.backwards = (backwards != 0);
srf.trim.Add(&stb);
} else if(strcmp(line, "AddSurface")==0) {
sh->surface.Add(&srf);
srf = {};
} else if(StrStartsWith(line, "Curve ")) {
int isExact;
if(sscanf(line, "Curve %x %d %d %x %x",
&(crv.h.v),
&(isExact),
&(crv.exact.deg),
&(crv.surfA.v), &(crv.surfB.v)) != 5)
{
oops();
}
crv.isExact = (isExact != 0);
} else if(StrStartsWith(line, "CCtrl ")) {
int i;
Vector c;
double w;
if(sscanf(line, "CCtrl %d %lf %lf %lf Weight %lf",
&i, &(c.x), &(c.y), &(c.z), &w) != 5)
{
oops();
}
crv.exact.ctrl[i] = c;
crv.exact.weight[i] = w;
} else if(StrStartsWith(line, "CurvePt ")) {
SCurvePt scpt;
int vertex;
if(sscanf(line, "CurvePt %d %lf %lf %lf",
&vertex,
&(scpt.p.x), &(scpt.p.y), &(scpt.p.z)) != 4)
{
oops();
}
scpt.vertex = (vertex != 0);
crv.pts.Add(&scpt);
} else if(strcmp(line, "AddCurve")==0) {
sh->curve.Add(&crv);
crv = {};
} else {
oops();
}
}
fclose(fh);
return true;
}
//-----------------------------------------------------------------------------
// Handling of the relative-absolute path transformations for imports
//-----------------------------------------------------------------------------
static std::vector<std::string> Split(const std::string &haystack, const std::string &needle)
{
std::vector<std::string> result;
size_t oldpos = 0, pos = 0;
while(true) {
oldpos = pos;
pos = haystack.find(needle, pos);
if(pos == std::string::npos) break;
result.push_back(haystack.substr(oldpos, pos - oldpos));
pos += needle.length();
}
if(oldpos != haystack.length() - 1)
result.push_back(haystack.substr(oldpos));
return result;
}
static std::string Join(const std::vector<std::string> &parts, const std::string &separator)
{
bool first = true;
std::string result;
for(auto &part : parts) {
if(!first) result += separator;
result += part;
first = false;
}
return result;
}
static bool PlatformPathEqual(const std::string &a, const std::string &b)
{
// Case-sensitivity is actually per-volume on both Windows and OS X,
// but it is extremely tedious to implement and test for little benefit.
#if defined(WIN32)
std::wstring wa = Widen(a), wb = Widen(b);
return std::equal(wa.begin(), wa.end(), wb.begin(), /*wb.end(),*/
[](wchar_t wca, wchar_t wcb) { return towlower(wca) == towlower(wcb); });
#elif defined(__APPLE__)
return !strcasecmp(a.c_str(), b.c_str());
#else
return a == b;
#endif
}
static std::string MakePathRelative(const std::string &base, const std::string &path)
{
std::vector<std::string> baseParts = Split(base, PATH_SEP),
pathParts = Split(path, PATH_SEP),
resultParts;
baseParts.pop_back();
int common;
for(common = 0; common < baseParts.size() && common < pathParts.size(); common++) {
if(!PlatformPathEqual(baseParts[common], pathParts[common]))
break;
}
for(int i = common; i < baseParts.size(); i++)
resultParts.push_back("..");
resultParts.insert(resultParts.end(),
pathParts.begin() + common, pathParts.end());
return Join(resultParts, PATH_SEP);
}
static std::string MakePathAbsolute(const std::string &base, const std::string &path)
{
std::vector<std::string> resultParts = Split(base, PATH_SEP),
pathParts = Split(path, PATH_SEP);
resultParts.pop_back();
for(auto &part : pathParts) {
if(part == ".") {
/* do nothing */
} else if(part == "..") {
if(resultParts.empty()) oops();
resultParts.pop_back();
} else {
resultParts.push_back(part);
}
}
return Join(resultParts, PATH_SEP);
}
static void PathSepNormalize(std::string &filename)
{
for(int i = 0; i < filename.length(); i++) {
if(filename[i] == '\\')
filename[i] = '/';
}
}
static std::string PathSepPlatformToUNIX(const std::string &filename)
{
#if defined(WIN32)
std::string result = filename;
for(int i = 0; i < result.length(); i++) {
if(result[i] == '\\')
result[i] = '/';
}
return result;
#else
return filename;
#endif
}
static std::string PathSepUNIXToPlatform(const std::string &filename)
{
#if defined(WIN32)
std::string result = filename;
for(int i = 0; i < result.length(); i++) {
if(result[i] == '/')
result[i] = '\\';
}
return result;
#else
return filename;
#endif
}
bool SolveSpaceUI::ReloadAllImported(bool canCancel)
{
std::map<std::string, std::string> importMap;
allConsistent = false;
int i;
for(i = 0; i < SK.group.n; i++) {
Group *g = &(SK.group.elem[i]);
if(g->type != Group::IMPORTED) continue;
if(isalpha(g->impFile[0]) && g->impFile[1] == ':') {
// Make sure that g->impFileRel always contains a relative path
// in an UNIX format, even after we load an old file which had
// the path in Windows format
PathSepNormalize(g->impFileRel);
}
g->impEntity.Clear();
g->impMesh.Clear();
g->impShell.Clear();
if(importMap.count(g->impFile)) {
std::string newPath = importMap[g->impFile];
if(!newPath.empty())
g->impFile = newPath;
}
FILE *test = ssfopen(g->impFile, "rb");
if(test) {
fclose(test); // okay, exists
} else {
// It doesn't exist. Perhaps the entire tree has moved, and we
// can use the relative filename to get us back.
if(!SS.saveFile.empty()) {
std::string rel = PathSepUNIXToPlatform(g->impFileRel);
std::string fromRel = MakePathAbsolute(SS.saveFile, rel);
test = ssfopen(fromRel, "rb");
if(test) {
fclose(test);
// It worked, this is our new absolute path
g->impFile = fromRel;
}
}
}
try_load_file:
if(LoadEntitiesFromFile(g->impFile, &(g->impEntity), &(g->impMesh), &(g->impShell)))
{
if(!SS.saveFile.empty()) {
// Record the imported file's name relative to our filename;
// if the entire tree moves, then everything will still work
std::string rel = MakePathRelative(SS.saveFile, g->impFile);
g->impFileRel = PathSepPlatformToUNIX(rel);
} else {
// We're not yet saved, so can't make it absolute.
// This will only be used for display purposes, as SS.saveFile
// is always nonempty when we are actually writing anything.
g->impFileRel = g->impFile;
}
} else if(!importMap.count(g->impFile)) {
switch(LocateImportedFileYesNoCancel(g->impFileRel, canCancel)) {
case DIALOG_YES: {
std::string oldImpFile = g->impFile;
if(!GetOpenFile(g->impFile, "", SLVS_PATTERN)) {
if(canCancel)
return false;
break;
} else {
importMap[oldImpFile] = g->impFile;
goto try_load_file;
}
}
case DIALOG_NO:
importMap[g->impFile] = "";
/* Geometry will be pruned by GenerateAll(). */
break;
case DIALOG_CANCEL:
return false;
}
} else {
// User was already asked to and refused to locate a missing
// imported file.
}
}
return true;
}