From 45eaa24352984fab066a7e0a3a59048d91cae1c8 Mon Sep 17 00:00:00 2001
From: nds <natalia.donis@opencascade.com>
Date: Wed, 25 Jun 2014 16:37:39 +0400
Subject: [PATCH] refs #80 - Sketch base GUI: create/draw point, circle and arc

1. Circle AIS check.
---
 src/SketchPlugin/SketchPlugin_Circle.cpp | 40 +++++++++++++-----------
 src/SketchPlugin/plugin-Sketch.xml       |  6 ++--
 2 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/src/SketchPlugin/SketchPlugin_Circle.cpp b/src/SketchPlugin/SketchPlugin_Circle.cpp
index ef6ecf13f..cca6599bb 100644
--- a/src/SketchPlugin/SketchPlugin_Circle.cpp
+++ b/src/SketchPlugin/SketchPlugin_Circle.cpp
@@ -41,25 +41,27 @@ const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_Circle::preview()
     // compute a circle point in 3D view
     boost::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = 
       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CIRCLE_ATTR_CENTER));
-    boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
-    // make a visible point
-    boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
-    aShapes.push_back(aCenterPointShape);
-
-    // make a visible circle
-    boost::shared_ptr<GeomDataAPI_Dir> aNDir = 
-      boost::dynamic_pointer_cast<GeomDataAPI_Dir>(aSketch->data()->attribute(SKETCH_ATTR_NORM));
-    bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
-    if (aHasPlane) {
-      boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
-      // compute the circle radius
-      AttributeDoublePtr aRadiusAttr = 
-        boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
-      double aRadius = aRadiusAttr->value();
-
-      boost::shared_ptr<GeomAPI_Shape> aCircleShape = 
-                              GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
-      aShapes.push_back(aCircleShape);
+    if (aCenterAttr->isInitialized()) {
+      boost::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
+      // make a visible point
+      boost::shared_ptr<GeomAPI_Shape> aCenterPointShape = GeomAlgoAPI_PointBuilder::point(aCenter);
+      aShapes.push_back(aCenterPointShape);
+
+      // make a visible circle
+      boost::shared_ptr<GeomDataAPI_Dir> aNDir = 
+        boost::dynamic_pointer_cast<GeomDataAPI_Dir>(aSketch->data()->attribute(SKETCH_ATTR_NORM));
+      bool aHasPlane = aNDir && !(aNDir->x() == 0 && aNDir->y() == 0 && aNDir->z() == 0);
+      if (aHasPlane) {
+        boost::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
+        // compute the circle radius
+        AttributeDoublePtr aRadiusAttr = 
+          boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CIRCLE_ATTR_RADIUS));
+        double aRadius = aRadiusAttr->value();
+
+        boost::shared_ptr<GeomAPI_Shape> aCircleShape = 
+                                GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aRadius);
+        aShapes.push_back(aCircleShape);
+      }
     }
     boost::shared_ptr<GeomAPI_Shape> aCompound = GeomAlgoAPI_CompoundBuilder::compound(aShapes);
     setPreview(aCompound);
diff --git a/src/SketchPlugin/plugin-Sketch.xml b/src/SketchPlugin/plugin-Sketch.xml
index cd32b5528..a423f27e1 100644
--- a/src/SketchPlugin/plugin-Sketch.xml
+++ b/src/SketchPlugin/plugin-Sketch.xml
@@ -27,19 +27,19 @@
         <feature_selector id="ConstraintEntityA" label="First point" tooltip="Select an entity in the viewer" keysequence="SketchPoint"/>
         <feature_selector id="ConstraintEntityB" label="Last point" tooltip="Select an entity in the viewer" keysequence="SketchPoint"/>
         <point_selector id="ConstraintFlyoutValuePnt" internal="1"/>
-        <doublevalue_editor id="ConstraintValue"/>
+        <doublevalue_editor label="Value" tooltip="Constraint value" id="ConstraintValue"/>
       </feature>
       <feature id="SketchConstraintLength" title="Length of a line" tooltip="Create constraint for the given length of a line segment">
         <label title="Select a line entity on which to calculate lenght" tooltip="Select a line entity on which to calculate lenght"/>
         <feature_selector id="ConstraintEntityA" label="Line" tooltip="Select an entity in the viewer" keysequence="SketchLine"/>
         <point_selector id="ConstraintFlyoutValuePnt" internal="1"/>
-        <doublevalue_editor id="ConstraintValue"/>
+        <doublevalue_editor label="Value" tooltip="Constraint value" id="ConstraintValue"/>
       </feature>
       <feature id="SketchConstraintRadius" title="Radius of a circle or an arc" tooltip="Create constraint for the given radius of a circle or an arc">
         <label title="Select two points on a circle or an arc of circle on which to calculate radius" tooltip="Select two points on a circle or an arc of circle on which to calculate radius"/>
         <feature_selector id="ConstraintEntityA" label="Circle or Arc" tooltip="Select an entity in the viewer" keysequence="SketchCircle SketchArc"/>
         <point_selector id="ConstraintFlyoutValuePnt" internal="1"/>
-        <doublevalue_editor id="ConstraintValue"/>
+        <doublevalue_editor label="Value" tooltip="Constraint value" id="ConstraintValue"/>
       </feature>
       <feature id="SketchConstraintParallel" title="Parallelism of a lines" tooltip="Create constraint defining two parallel lines">
         <feature_selector id="ConstraintEntityA" label="First line" tooltip="Select an entity in the viewer" keysequence="SketchLine"/>
-- 
2.39.2