Little fixes for units display, and change file format to binary

(even though it's still a text file), to avoid CRLF issue.

[git-p4: depot-paths = "//depot/solvespace/": change = 1794]

draw.cpp

@@ -851,6 +851,7 @@ void GraphicsWindow::Paint(int w, int h) {
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     glEnable(GL_BLEND);
     glEnable(GL_LINE_SMOOTH);
+    glEnable(GL_POLYGON_SMOOTH);
     glEnable(GL_POLYGON_OFFSET_LINE);
     glEnable(GL_POLYGON_OFFSET_FILL);
     glEnable(GL_DEPTH_TEST); 

file.cpp

@@ -179,7 +179,7 @@ bool SolveSpace::SaveToFile(char *filename) {
     // will be exported.
     SS.GenerateAll(0, INT_MAX);
 
-    fh = fopen(filename, "w");
+    fh = fopen(filename, "wb");
     if(!fh) {   
         Error("Couldn't write to file '%s'", filename);
         return false;
@@ -281,7 +281,7 @@ void SolveSpace::LoadUsingTable(char *key, char *val) {
 }
 
 bool SolveSpace::LoadFromFile(char *filename) {
-    fh = fopen(filename, "r");
+    fh = fopen(filename, "rb");
     if(!fh) {   
         Error("Couldn't read from file '%s'", filename);
         return false;
@@ -340,7 +340,7 @@ bool SolveSpace::LoadFromFile(char *filename) {
 }
 
 bool SolveSpace::LoadEntitiesFromFile(char *file, EntityList *le, SMesh *m) {
-    fh = fopen(file, "r");
+    fh = fopen(file, "rb");
     if(!fh) return false;
 
     le->Clear();
@@ -403,7 +403,7 @@ void SolveSpace::ReloadAllImported(void) {
         g->impEntity.Clear();
         g->impMesh.Clear();
         if(!LoadEntitiesFromFile(g->impFile, &(g->impEntity), &(g->impMesh))) {
-            oops();
+            Error("Failed to load imported file '%s'", g->impFile);
         }
     }
 }

graphicswin.cpp

@@ -98,13 +98,8 @@ void GraphicsWindow::Init(void) {
     projRight = Vector::From(1, 0, 0);
     projUp    = Vector::From(0, 1, 0);
 
-    // And with the latest visible group active, or failing that the first
-    // group after the references
-    int i;
-    for(i = 0; i < SS.group.n; i++) {
-        Group *g = &(SS.group.elem[i]);
-        if(i == 1 || g->visible) activeGroup = g->h;
-    }
+    // And with the last group active
+    activeGroup = SS.group.elem[SS.group.n-1].h;
     SS.GetGroup(activeGroup)->Activate();
 
     showWorkplanes = false;
@@ -259,11 +254,13 @@ void GraphicsWindow::MenuView(int id) {
 
         case MNU_UNITS_MM:
             SS.viewUnits = SolveSpace::UNIT_MM;
+            SS.later.showTW = true;
             SS.GW.EnsureValidActives();
             break;
 
         case MNU_UNITS_INCHES:
             SS.viewUnits = SolveSpace::UNIT_INCHES;
+            SS.later.showTW = true;
             SS.GW.EnsureValidActives();
             break;
 

wishlist.txt

@@ -5,13 +5,11 @@ DXF export
 TTF font text
 some kind of rounding / chamfer
 remove back button in browser?
-clean up user-created workplanes
 graphic export
 relative paths for import
 auto-generate circles and faces when lathing
 
 partitioned subsystems in the solver
-display with proper formatting/units
 sweep tool