Fix memory corruption in the IdList stuff (stupid freeing), and

tweak the way that things are hidden and shown.

[git-p4: depot-paths = "//depot/solvespace/": change = 1664]

dsc.h

@@ -84,7 +84,7 @@ public:
                 return &(elem[i].t);
             }
         }
-        dbp("failed to look up item %16lx, searched %d items", h.v);
+        dbp("failed to look up item %16lx, searched %d items", h.v, elems);
         oops();
     }
 
@@ -115,6 +115,7 @@ public:
     void Clear(void) {
         elemsAllocated = elems = 0;
         if(elem) free(elem);
+        elem = NULL;
     }
 
 };

entity.cpp

@@ -31,10 +31,9 @@ double Entity::GetDistance(Point2d mp) {
 }
 
 void Entity::DrawOrGetDistance(void) {
+    if(!visible) return;
     switch(type) {
         case CSYS_2D: {
-            if(!SS.GW.show2dCsyss) break;
-
             Vector p;
             p = SS.point.FindById(point(16))->GetCoords();
 

graphicswin.cpp

@@ -302,6 +302,7 @@ void GraphicsWindow::ToggleBool(int link, DWORD v) {
     bool *vb = (bool *)v;
     *vb = !*vb;
 
+    SS.GenerateForUserInterface();
     InvalidateGraphics();
     SS.TW.Show();
 }
@@ -312,6 +313,7 @@ void GraphicsWindow::ToggleAnyDatumShown(int link, DWORD v) {
     SS.GW.showAxes = t;
     SS.GW.showPoints = t;
 
+    SS.GenerateForUserInterface();
     InvalidateGraphics();
     SS.TW.Show();
 }

sketch.cpp

@@ -17,14 +17,17 @@ char *Group::DescriptionString(void) {
     return ret;
 }
 
-void Request::AddParam(Entity *e, int index) {
+void Request::AddParam(IdList<Param,hParam> *param, Entity *e, int index) {
     Param pa;
     memset(&pa, 0, sizeof(pa));
     pa.h = e->param(index);
-    SS.param.Add(&pa);
+    param->Add(&pa);
 }
 
-void Request::Generate(void) {
+void Request::Generate(IdList<Entity,hEntity> *entity,
+                       IdList<Point,hPoint> *point,
+                       IdList<Param,hParam> *param)
+{
     int points = 0;
     int params = 0;
     int type = 0;
@@ -36,16 +39,19 @@ void Request::Generate(void) {
     memset(&e, 0, sizeof(e));
     e.h = this->entity(0);
 
+    bool shown = true;
     switch(type) {
         case Request::CSYS_2D:
-            type = Entity::CSYS_2D;          points = 1; params = 4; goto c;
+            type = Entity::CSYS_2D;          points = 1; params = 4;
+            if(!SS.GW.show2dCsyss) shown = false;
+            goto c;
         case Request::LINE_SEGMENT:
             type = Entity::LINE_SEGMENT;     points = 2; params = 0; goto c;
 c: {
             // Common routines, for all the requests that generate a single
             // entity that's defined by a simple combination of pts and params.
             for(i = 0; i < params; i++) {
-                AddParam(&e, i);
+                AddParam(param, &e, i);
             }
             for(i = 0; i < points; i++) {
                 Point pt;
@@ -54,21 +60,23 @@ c: {
                 if(g->csys.v == Entity::NO_CSYS.v) {
                     pt.type = Point::IN_FREE_SPACE;
                     // params for x y z
-                    AddParam(&e, 16 + 3*i + 0);
-                    AddParam(&e, 16 + 3*i + 1);
-                    AddParam(&e, 16 + 3*i + 2);
+                    AddParam(param, &e, 16 + 3*i + 0);
+                    AddParam(param, &e, 16 + 3*i + 1);
+                    AddParam(param, &e, 16 + 3*i + 2);
                 } else {
                     pt.type = Point::IN_2D_CSYS;
                     pt.csys = g->csys;
                     // params for u v
-                    AddParam(&e, 16 + 3*i + 0);
-                    AddParam(&e, 16 + 3*i + 1);
+                    AddParam(param, &e, 16 + 3*i + 0);
+                    AddParam(param, &e, 16 + 3*i + 1);
                 }
-                SS.point.Add(&pt);
+                pt.visible = shown;
+                point->Add(&pt);
             }
     
             e.type = type;
-            SS.entity.Add(&e);
+            e.visible = shown;
+            entity->Add(&e);
             break;
         }
 
@@ -122,6 +130,8 @@ Vector Point::GetCoords(void) {
 }
 
 void Point::Draw(void) {
+    if(!visible) return;
+
     Vector v = GetCoords();
 
     double s = 4;
@@ -137,6 +147,8 @@ void Point::Draw(void) {
 }
 
 double Point::GetDistance(Point2d mp) {
+    if(!visible) return 1e12;
+
     Vector v = GetCoords();
     Point2d pp = SS.GW.ProjectPoint(v);
 

sketch.h

@@ -2,13 +2,15 @@
 #ifndef __SKETCH_H
 #define __SKETCH_H
 
-class hEntity;
-class hPoint;
-class hRequest;
-class hParam;
 class hGroup;
+class hRequest;
+class hEntity;
+class hParam;
+class hPoint;
 
 class Entity;
+class Param;
+class Point;
 
 // All of the hWhatever handles are a 32-bit ID, that is used to represent
 // some data structure in the sketch.
@@ -83,8 +85,10 @@ public:
     inline hEntity entity(int i)
         { hEntity r; r.v = ((this->h.v) << 11) | i; return r; }
 
-    void AddParam(Entity *e, int index);
-    void Generate(void);
+    void AddParam(IdList<Param,hParam> *param, Entity *e, int index);
+    void Generate(IdList<Entity,hEntity> *entity,
+                  IdList<Point,hPoint> *point,
+                  IdList<Param,hParam> *param);
 
     char *DescriptionString(void);
 };
@@ -99,6 +103,8 @@ public:
 
     hEntity     h;
 
+    bool        visible;
+
     Expr        *expr[16];
 
     inline hRequest request(void)
@@ -139,6 +145,7 @@ public:
     static const int BY_EXPR        = 2;    // three Expr *, could be anything
 
     hEntity     csys;
+    bool        visible;
 
     inline hEntity entity(void)
         { hEntity r; r.v = (h.v >> 8); return r; }

solvespace.cpp

@@ -49,17 +49,23 @@ void SolveSpace::Init(void) {
     request.Add(&r);
 
     TW.Show();
-    Solve();
+    GenerateForUserInterface();
 }
 
-void SolveSpace::Solve(void) {
+void SolveSpace::GenerateForUserInterface(void) {
     int i;
 
     entity.Clear();
+    param.Clear();
+    point.Clear();
     for(i = 0; i < request.elems; i++) {
-        request.elem[i].t.Generate();
+        request.elem[i].t.Generate(&entity, &point, &param);
     }
 
+    ForceReferences();
+}
+
+void SolveSpace::ForceReferences(void) {
     // Force the values of the paramters that define the three reference
     // coordinate systems.
     static const struct {
@@ -70,7 +76,7 @@ void SolveSpace::Solve(void) {
         { Request::HREQUEST_REFERENCE_YZ, 0.5, -0.5, -0.5, -0.5, },
         { Request::HREQUEST_REFERENCE_ZX, 0.5,  0.5,  0.5,  0.5, },
     };
-    for(i = 0; i < 3; i++) {
+    for(int i = 0; i < 3; i++) {
         hEntity he;
         he = request.FindById(Quat[i].hr)->entity(0);
         Entity *e = entity.FindById(he);
@@ -85,3 +91,6 @@ void SolveSpace::Solve(void) {
     }
 }
 
+void SolveSpace::Solve(void) {
+}
+

solvespace.h

@@ -60,6 +60,9 @@ public:
 
     hGroup                      activeGroup;
 
+    void GenerateForUserInterface(void);
+    void ForceReferences(void);
+
     void Init(void);
     void Solve(void);
 };