From dea573e15695fbd610fe059de199d4f7512d3610 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Fri, 17 Feb 2017 03:18:34 +0000
Subject: [PATCH] Highlight normals and circle radii that have a degree of
 freedom.

---
 .gitignore                              |   2 +-
 src/drawentity.cpp                      |  28 ++++++++++++++++++++++++
 src/graphicswin.cpp                     |   1 +
 src/style.cpp                           |   2 +-
 test/request/circle/free_in_3d.png      | Bin 0 -> 4806 bytes
 test/request/circle/free_in_3d.slvs     | Bin 0 -> 4983 bytes
 test/request/circle/free_in_3d_dof.png  | Bin 0 -> 7197 bytes
 test/request/circle/free_in_3d_v20.slvs | Bin 0 -> 4891 bytes
 test/request/circle/free_in_3d_v22.slvs | Bin 0 -> 4983 bytes
 test/request/circle/normal_dof.png      | Bin 0 -> 4820 bytes
 test/request/circle/test.cpp            |  28 ++++++++++++++++++++++++
 11 files changed, 59 insertions(+), 2 deletions(-)
 create mode 100644 test/request/circle/free_in_3d.png
 create mode 100644 test/request/circle/free_in_3d.slvs
 create mode 100644 test/request/circle/free_in_3d_dof.png
 create mode 100644 test/request/circle/free_in_3d_v20.slvs
 create mode 100644 test/request/circle/free_in_3d_v22.slvs
 create mode 100644 test/request/circle/normal_dof.png

diff --git a/.gitignore b/.gitignore
index a85e90e..5301e14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,4 @@
 /debian/libslvs1/
 /debian/libslvs1-dev/
 /obj-*/
-*.slvs
+/*.slvs
diff --git a/src/drawentity.cpp b/src/drawentity.cpp
index 7f534ef..1e5a31e 100644
--- a/src/drawentity.cpp
+++ b/src/drawentity.cpp
@@ -601,6 +601,20 @@ void Entity::Draw(DrawAs how, Canvas *canvas) {
                 Vector axis = q.RotationV();
                 canvas->DrawLine(tip, tip.Minus(v.RotatedAbout(axis,  0.6)), hcs);
                 canvas->DrawLine(tip, tip.Minus(v.RotatedAbout(axis, -0.6)), hcs);
+
+                if(type == Type::NORMAL_IN_3D) {
+                    Param *nw = SK.GetParam(param[0]),
+                          *nx = SK.GetParam(param[1]),
+                          *ny = SK.GetParam(param[2]),
+                          *nz = SK.GetParam(param[3]);
+
+                    if(nw->free || nx->free || ny->free || nz->free) {
+                        Canvas::Stroke analyzeStroke = Style::Stroke(Style::ANALYZE);
+                        analyzeStroke.layer = Canvas::Layer::FRONT;
+                        Canvas::hStroke hcsAnalyze = canvas->GetStroke(analyzeStroke);
+                        canvas->DrawLine(tail, tip, hcsAnalyze);
+                    }
+                }
             }
             return;
         }
@@ -665,6 +679,20 @@ void Entity::Draw(DrawAs how, Canvas *canvas) {
             if(!canvas->DrawBeziers(*GetOrGenerateBezierCurves(),  hcs)) {
                 canvas->DrawEdges(*GetOrGenerateEdges(), hcs);
             }
+            if(type == Type::CIRCLE) {
+                Entity *dist = SK.GetEntity(distance);
+                if(dist->type == Type::DISTANCE) {
+                    Param *p = SK.GetParam(dist->param[0]);
+                    if(p->free) {
+                        Canvas::Stroke analyzeStroke = Style::Stroke(Style::ANALYZE);
+                        analyzeStroke.layer = Canvas::Layer::FRONT;
+                        Canvas::hStroke hcsAnalyze = canvas->GetStroke(analyzeStroke);
+                        if(!canvas->DrawBeziers(*GetOrGenerateBezierCurves(), hcsAnalyze)) {
+                            canvas->DrawEdges(*GetOrGenerateEdges(), hcsAnalyze);
+                        }
+                    }
+                }
+            }
             return;
         }
 
diff --git a/src/graphicswin.cpp b/src/graphicswin.cpp
index 076c5d3..4413bb6 100644
--- a/src/graphicswin.cpp
+++ b/src/graphicswin.cpp
@@ -789,6 +789,7 @@ void GraphicsWindow::MenuEdit(Command id) {
                 SS.exportMode = false;
                 SS.GenerateAll(SolveSpaceUI::Generate::ALL);
             }
+            SS.GW.persistentDirty = true;
             break;
 
         case Command::SELECT_ALL: {
diff --git a/src/style.cpp b/src/style.cpp
index 0653472..4af11c8 100644
--- a/src/style.cpp
+++ b/src/style.cpp
@@ -18,7 +18,7 @@ const Style::Default Style::Defaults[] = {
     { { HOVERED },      "Hovered",      RGBf(1.0, 1.0, 0.0), 1.5, 0 },
     { { CONTOUR_FILL }, "ContourFill",  RGBf(0.0, 0.1, 0.1), 1.0, 0 },
     { { NORMALS },      "Normals",      RGBf(0.0, 0.4, 0.4), 1.0, 0 },
-    { { ANALYZE },      "Analyze",      RGBf(0.0, 1.0, 1.0), 1.0, 0 },
+    { { ANALYZE },      "Analyze",      RGBf(0.0, 1.0, 1.0), 3.0, 0 },
     { { DRAW_ERROR },   "DrawError",    RGBf(1.0, 0.0, 0.0), 8.0, 0 },
     { { DIM_SOLID },    "DimSolid",     RGBf(0.1, 0.1, 0.1), 1.0, 0 },
     { { HIDDEN_EDGE },  "HiddenEdge",   RGBf(0.8, 0.8, 0.8), 1.0, 1 },
diff --git a/test/request/circle/free_in_3d.png b/test/request/circle/free_in_3d.png
new file mode 100644
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GIT binary patch
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diff --git a/test/request/circle/free_in_3d.slvs b/test/request/circle/free_in_3d.slvs
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diff --git a/test/request/circle/free_in_3d_dof.png b/test/request/circle/free_in_3d_dof.png
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diff --git a/test/request/circle/test.cpp b/test/request/circle/test.cpp
index 5e9db1b..82cd878 100644
--- a/test/request/circle/test.cpp
+++ b/test/request/circle/test.cpp
@@ -15,3 +15,31 @@ TEST_CASE(normal_migrate_from_v22) {
     CHECK_LOAD("normal_v22.slvs");
     CHECK_SAVE("normal.slvs");
 }
+
+TEST_CASE(free_in_3d_roundtrip) {
+    CHECK_LOAD("free_in_3d.slvs");
+    CHECK_RENDER("free_in_3d.png");
+    CHECK_SAVE("free_in_3d.slvs");
+}
+
+TEST_CASE(free_in_3d_migrate_from_v20) {
+    CHECK_LOAD("free_in_3d_v20.slvs");
+    CHECK_SAVE("free_in_3d.slvs");
+}
+
+TEST_CASE(free_in_3d_migrate_from_v22) {
+    CHECK_LOAD("free_in_3d_v22.slvs");
+    CHECK_SAVE("free_in_3d.slvs");
+}
+
+TEST_CASE(normal_dof) {
+    CHECK_LOAD("normal.slvs");
+    SS.GenerateAll(SolveSpaceUI::Generate::ALL, /*andFindFree=*/true);
+    CHECK_RENDER("normal_dof.png");
+}
+
+TEST_CASE(free_in_3d_dof) {
+    CHECK_LOAD("free_in_3d.slvs");
+    SS.GenerateAll(SolveSpaceUI::Generate::ALL, /*andFindFree=*/true);
+    CHECK_RENDER_ISO("free_in_3d_dof.png");
+}