From 137c951e7b397edf369300f6214b1a820f45742b Mon Sep 17 00:00:00 2001
From: DeepSOIC <vv.titov@gmail.com>
Date: Sun, 7 Aug 2016 01:02:34 +0300
Subject: [PATCH] Gui: Selection: Py interface for setting pick radius

Gui.ActiveDocument.ActiveView.getViewer().setPickRadius(new_val)
---
 src/Gui/View3DViewerPy.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 src/Gui/View3DViewerPy.h   |  2 ++
 2 files changed, 40 insertions(+)

diff --git a/src/Gui/View3DViewerPy.cpp b/src/Gui/View3DViewerPy.cpp
index 3a749e0df..ee237432a 100644
--- a/src/Gui/View3DViewerPy.cpp
+++ b/src/Gui/View3DViewerPy.cpp
@@ -71,6 +71,10 @@ void View3DInventorViewerPy::init_type()
     add_varargs_method("setFocalDistance",&View3DInventorViewerPy::setFocalDistance,"setFocalDistance(float) -> None\n");
     add_varargs_method("getFocalDistance",&View3DInventorViewerPy::getFocalDistance,"getFocalDistance() -> float\n");
     add_varargs_method("getPoint", &View3DInventorViewerPy::getPoint, "getPoint(x, y) -> Base::Vector(x,y,z)");
+    add_varargs_method("getPickRadius", &View3DInventorViewerPy::getPickRadius,
+        "getPickRadius(): returns radius of confusion in pixels for picking objects on screen (selection).");
+    add_varargs_method("setPickRadius", &View3DInventorViewerPy::setPickRadius,
+        "setPickRadius(new_radius): sets radius of confusion in pixels for picking objects on screen (selection).");
 }
 
 View3DInventorViewerPy::View3DInventorViewerPy(View3DInventorViewer *vi)
@@ -316,3 +320,37 @@ Py::Object View3DInventorViewerPy::getPoint(const Py::Tuple& args)
         throw;
     }
 }
+
+Py::Object View3DInventorViewerPy::getPickRadius(const Py::Tuple& args)
+{
+    if (!PyArg_ParseTuple(args.ptr(), ""))
+        throw Py::Exception();
+
+    double d = _viewer->getPickRadius();
+    return Py::Float(d);
+}
+
+Py::Object View3DInventorViewerPy::setPickRadius(const Py::Tuple& args)
+{
+    float r = 0.0;
+    if (!PyArg_ParseTuple(args.ptr(), "f", &r)) {
+        throw Py::Exception();
+    }
+
+    if (r < 0.001){
+        throw Py::ValueError(std::string("Pick radius is zero or negative; positive number is required."));
+    }
+    try {
+        _viewer->setPickRadius(r);
+        return Py::None();
+    }
+    catch (const Base::Exception& e) {
+        throw Py::Exception(e.what());
+    }
+    catch (const std::exception& e) {
+        throw Py::Exception(e.what());
+    }
+    catch(...) {
+        throw Py::Exception("Unknown C++ exception");
+    }
+}
diff --git a/src/Gui/View3DViewerPy.h b/src/Gui/View3DViewerPy.h
index 9c71a8fb7..d78272675 100644
--- a/src/Gui/View3DViewerPy.h
+++ b/src/Gui/View3DViewerPy.h
@@ -62,6 +62,8 @@ public:
     Py::Object setFocalDistance(const Py::Tuple& args);
     Py::Object getFocalDistance(const Py::Tuple& args);
     Py::Object getPoint(const Py::Tuple& args);
+    Py::Object getPickRadius(const Py::Tuple& args);
+    Py::Object setPickRadius(const Py::Tuple& args);