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#
#  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.
#
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#  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.
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#  along with this program; if not, write to the Free Software Foundation,
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# ##### END GPL LICENSE BLOCK #####

# <pep8-80 compliant>

bl_info = {
    "name": "Stanford PLY format",
    "author": "Bruce Merry, Campbell Barton",
    "version": (1, 0, 0),
    "blender": (2, 74, 0),
    "location": "File > Import-Export",
    "description": "Import-Export PLY mesh data with UV's and vertex colors",
    "warning": "",
    "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"
                "Scripts/Import-Export/Stanford_PLY",
    "support": 'OFFICIAL',
    "category": "Import-Export"}

# Copyright (C) 2004, 2005: Bruce Merry, bmerry@cs.uct.ac.za
# Contributors: Bruce Merry, Campbell Barton

# To support reload properly, try to access a package var,
# if it's there, reload everything
if "bpy" in locals():
    import importlib
    if "export_ply" in locals():
        importlib.reload(export_ply)
    if "import_ply" in locals():
        importlib.reload(import_ply)


import os
import bpy
from bpy.props import (
        CollectionProperty,
        StringProperty,
        BoolProperty,
        EnumProperty,
        FloatProperty,
        )
from bpy_extras.io_utils import (
        ImportHelper,
        ExportHelper,
        orientation_helper_factory,
        axis_conversion,
        )


IOPLYOrientationHelper = orientation_helper_factory("IOPLYOrientationHelper", axis_forward='Y', axis_up='Z')


class ImportPLY(bpy.types.Operator, ImportHelper):
    """Load a PLY geometry file"""
    bl_idname = "import_mesh.ply"
    bl_label = "Import PLY"
    bl_options = {'UNDO'}

    files = CollectionProperty(name="File Path",
                          description="File path used for importing "
                                      "the PLY file",
                          type=bpy.types.OperatorFileListElement)

    directory = StringProperty()

    filename_ext = ".ply"
    filter_glob = StringProperty(default="*.ply", options={'HIDDEN'})

    def execute(self, context):
        paths = [os.path.join(self.directory, name.name)
                 for name in self.files]
        if not paths:
            paths.append(self.filepath)

        from . import import_ply

        for path in paths:
            import_ply.load(self, context, path)

        return {'FINISHED'}


class ExportPLY(bpy.types.Operator, ExportHelper, IOPLYOrientationHelper):
    """Export a single object as a Stanford PLY with normals, """ \
    """colors and texture coordinates"""
    bl_idname = "export_mesh.ply"
    bl_label = "Export PLY"

    filename_ext = ".ply"
    filter_glob = StringProperty(default="*.ply", options={'HIDDEN'})

    use_mesh_modifiers = BoolProperty(
            name="Apply Modifiers",
            description="Apply Modifiers to the exported mesh",
            default=True,
            )
    use_normals = BoolProperty(
            name="Normals",
            description="Export Normals for smooth and "
                        "hard shaded faces "
                        "(hard shaded faces will be exported "
                        "as individual faces)",
            default=True,
            )
    use_uv_coords = BoolProperty(
            name="UVs",
            description="Export the active UV layer",
            default=True,
            )
    use_colors = BoolProperty(
            name="Vertex Colors",
            description="Export the active vertex color layer",
            default=True,
            )

    global_scale = FloatProperty(
            name="Scale",
            min=0.01, max=1000.0,
            default=1.0,
            )

    @classmethod
    def poll(cls, context):
        return context.active_object is not None

    def execute(self, context):
        from . import export_ply

        from mathutils import Matrix

        keywords = self.as_keywords(ignore=("axis_forward",
                                            "axis_up",
                                            "global_scale",
                                            "check_existing",
                                            "filter_glob",
                                            ))
        global_matrix = axis_conversion(to_forward=self.axis_forward,
                                        to_up=self.axis_up,
                                        ).to_4x4() * Matrix.Scale(self.global_scale, 4)
        keywords["global_matrix"] = global_matrix

        filepath = self.filepath
        filepath = bpy.path.ensure_ext(filepath, self.filename_ext)

        return export_ply.save(self, context, **keywords)

    def draw(self, context):
        layout = self.layout

        row = layout.row()
        row.prop(self, "use_mesh_modifiers")
        row.prop(self, "use_normals")
        row = layout.row()
        row.prop(self, "use_uv_coords")
        row.prop(self, "use_colors")

        layout.prop(self, "axis_forward")
        layout.prop(self, "axis_up")
        layout.prop(self, "global_scale")


def menu_func_import(self, context):
    self.layout.operator(ImportPLY.bl_idname, text="Stanford (.ply)")


def menu_func_export(self, context):
    self.layout.operator(ExportPLY.bl_idname, text="Stanford (.ply)")


classes = (
    ImportPLY,
    ExportPLY,
    )


def register():
    for cls in classes:
        bpy.utils.register_class(cls)

    bpy.types.INFO_MT_file_import.append(menu_func_import)
    bpy.types.INFO_MT_file_export.append(menu_func_export)


def unregister():
    for cls in classes:
        bpy.utils.unregister_class(cls)

    bpy.types.INFO_MT_file_import.remove(menu_func_import)
    bpy.types.INFO_MT_file_export.remove(menu_func_export)

if __name__ == "__main__":
    register()
