Btrace: Major cleanup, reorganization

Bumped version to 1.2.1
Remove star imports
Split the bTrace file into two
Move the Panel and props code into the new file
Pep8 cleanup
Change the complicated switcher UI code Bools
replace them with one EnumProperty
This makes the second PropertyGroup not needed
Make optional layout configuration in the
preferences
Fix the crashes with the Drawing operator
Fix several crashes with wrong contexts
Some small UI fixes
More graceful error handling

1 files changed, 90 insertions, 33 deletions

diff --git a/btrace/__init__.py b/btrace/__init__.py
index 40ff4df1..c1f62512 100644
--- a/btrace/__init__.py
+++ b/btrace/__init__.py
@@ -1,43 +1,96 @@
-#BEGIN GPL LICENSE BLOCK
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
 
-#This program is free software; you can redistribute it and/or
-#modify it under the terms of the GNU General Public License
-#as published by the Free Software Foundation; either version 2
-#of the License, or (at your option) any later version.
-
-#This program is distributed in the hope that it will be useful,
-#but WITHOUT ANY WARRANTY; without even the implied warranty of
-#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.    See the
-#GNU General Public License for more details.
-
-#You should have received a copy of the GNU General Public License
-#along with this program; if not, write to the Free Software Foundation,
-#Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-
-#END GPL LICENCE BLOCK
 
 bl_info = {
     "name": "Btrace",
     "author": "liero, crazycourier, Atom, Meta-Androcto, MacKracken",
-    "version": (1, 1, ),
-    "blender": (2, 68, 0),
+    "version": (1, 2, 1),
+    "blender": (2, 78, 0),
     "location": "View3D > Tools",
     "description": "Tools for converting/animating objects/particles into curves",
     "warning": "",
     "wiki_url": "https://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Curve/Btrace",
-    "tracker_url": "https://developer.blender.org/maniphest/task/edit/form/2/",
     "category": "Add Curve"}
 
+if "bpy" in locals():
+    import importlib
+    importlib.reload(bTrace_props)
+    importlib.reload(bTrace)
+else:
+    from . import bTrace_props
+    from . import bTrace
 
 import bpy
-from .bTrace import *
-import selection_utils
-from bpy.props import FloatProperty, EnumProperty, IntProperty, BoolProperty, FloatVectorProperty
+from bpy.types import AddonPreferences
+from .bTrace_props import (
+        TracerProperties,
+        addTracerObjectPanel,
+        )
+from .bTrace import (
+        OBJECT_OT_convertcurve,
+        OBJECT_OT_objecttrace,
+        OBJECT_OT_objectconnect,
+        OBJECT_OT_writing,
+        OBJECT_OT_particletrace,
+        OBJECT_OT_traceallparticles,
+        OBJECT_OT_curvegrow,
+        OBJECT_OT_reset,
+        OBJECT_OT_fcnoise,
+        OBJECT_OT_meshfollow,
+        OBJECT_OT_materialChango,
+        OBJECT_OT_clearColorblender,
+        )
+from bpy.props import (
+        EnumProperty,
+        PointerProperty,
+        )
+
+
+# Add-on Preferences
+class btrace_preferences(AddonPreferences):
+    bl_idname = __name__
+
+    expand_enum = EnumProperty(
+            name="UI Options",
+            items=[
+                 ('list', "Drop down list",
+                  "Show all the items as dropdown list in the Tools Region"),
+                 ('col', "Enable Expanded UI Panel",
+                  "Show all the items expanded in the Tools Region in a column"),
+                 ('row', "Icons only in a row",
+                  "Show all the items as icons expanded in a row in the Tools Region")
+                  ],
+            description="",
+            default='list'
+            )
+
+    def draw(self, context):
+        layout = self.layout
+        layout.label("UI Options:")
 
-### Define Classes to register
-classes = [
+        row = layout.row(align=True)
+        row.prop(self, "expand_enum", text="UI Options", expand=True)
+
+
+# Define Classes to register
+classes = (
     TracerProperties,
-    TracerPropertiesMenu,
     addTracerObjectPanel,
     OBJECT_OT_convertcurve,
     OBJECT_OT_objecttrace,
@@ -50,18 +103,22 @@ classes = [
     OBJECT_OT_fcnoise,
     OBJECT_OT_meshfollow,
     OBJECT_OT_materialChango,
-    OBJECT_OT_clearColorblender
-    ]
+    OBJECT_OT_clearColorblender,
+    btrace_preferences,
+    )
+
 
 def register():
-    for c in classes:
-        bpy.utils.register_class(c)
-    bpy.types.WindowManager.curve_tracer = bpy.props.PointerProperty(type=TracerProperties)
-    bpy.types.WindowManager.btrace_menu = bpy.props.PointerProperty(type=TracerPropertiesMenu, update=deselect_others)
+    for cls in classes:
+        bpy.utils.register_class(cls)
+    bpy.types.WindowManager.curve_tracer = PointerProperty(type=TracerProperties)
+
 
 def unregister():
-    for c in classes:
-        bpy.utils.unregister_class(c)
+    for cls in classes:
+        bpy.utils.unregister_class(cls)
     del bpy.types.WindowManager.curve_tracer
+
+
 if __name__ == "__main__":
     register()