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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
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#  along with this program; if not, write to the Free Software Foundation,
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# <pep8 compliant>

bl_info = {
    "name": "Autodesk 3DS format",
    "author": "Bob Holcomb, Campbell Barton",
    "blender": (2, 5, 7),
    "api": 35622,
    "location": "File > Import-Export",
    "description": "Import-Export 3DS, meshes, uvs, materials, textures, cameras & lamps",
    "warning": "",
    "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.5/Py/"\
        "Scripts/Import-Export/Autodesk_3DS",
    "tracker_url": "",
    "support": 'OFFICIAL',
    "category": "Import-Export"}

# To support reload properly, try to access a package var, if it's there, reload everything
if "bpy" in locals():
    import imp
    if "import_3ds" in locals():
        imp.reload(import_3ds)
    if "export_3ds" in locals():
        imp.reload(export_3ds)


import bpy
from bpy.props import StringProperty, FloatProperty, BoolProperty, EnumProperty
from bpy_extras.io_utils import ImportHelper, ExportHelper, axis_conversion


class Import3DS(bpy.types.Operator, ImportHelper):
    '''Import from 3DS file format (.3ds)'''
    bl_idname = "import_scene.autodesk_3ds"
    bl_label = 'Import 3DS'

    filename_ext = ".3ds"
    filter_glob = StringProperty(default="*.3ds", options={'HIDDEN'})

    constrain_size = FloatProperty(name="Size Constraint", description="Scale the model by 10 until it reacehs the size constraint. Zero Disables.", min=0.0, max=1000.0, soft_min=0.0, soft_max=1000.0, default=10.0)
    use_image_search = BoolProperty(name="Image Search", description="Search subdirectories for any assosiated images (Warning, may be slow)", default=True)
    use_apply_transform = BoolProperty(name="Apply Transform", description="Workaround for object transformations importing incorrectly", default=True)

    axis_forward = EnumProperty(
            name="Forward",
            items=(('X', "X Forward", ""),
                   ('Y', "Y Forward", ""),
                   ('Z', "Z Forward", ""),
                   ('-X', "-X Forward", ""),
                   ('-Y', "-Y Forward", ""),
                   ('-Z', "-Z Forward", ""),
                   ),
            default='Y',
            )

    axis_up = EnumProperty(
            name="Up",
            items=(('X', "X Up", ""),
                   ('Y', "Y Up", ""),
                   ('Z', "Z Up", ""),
                   ('-X', "-X Up", ""),
                   ('-Y', "-Y Up", ""),
                   ('-Z', "-Z Up", ""),
                   ),
            default='Z',
            )

    def execute(self, context):
        from . import import_3ds

        keywords = self.as_keywords(ignore=("axis_forward", "axis_up", "filter_glob"))

        global_matrix = axis_conversion(from_forward=self.axis_forward, from_up=self.axis_up).to_4x4()
        keywords["global_matrix"] = global_matrix

        return import_3ds.load(self, context, **keywords)


class Export3DS(bpy.types.Operator, ExportHelper):
    '''Export to 3DS file format (.3ds)'''
    bl_idname = "export_scene.autodesk_3ds"
    bl_label = 'Export 3DS'

    filename_ext = ".3ds"
    filter_glob = StringProperty(default="*.3ds", options={'HIDDEN'})

    use_selection = BoolProperty(name="Selection Only", description="Export selected objects only", default=False)

    axis_forward = EnumProperty(
            name="Forward",
            items=(('X', "X Forward", ""),
                   ('Y', "Y Forward", ""),
                   ('Z', "Z Forward", ""),
                   ('-X', "-X Forward", ""),
                   ('-Y', "-Y Forward", ""),
                   ('-Z', "-Z Forward", ""),
                   ),
            default='Y',
            )

    axis_up = EnumProperty(
            name="Up",
            items=(('X', "X Up", ""),
                   ('Y', "Y Up", ""),
                   ('Z', "Z Up", ""),
                   ('-X', "-X Up", ""),
                   ('-Y', "-Y Up", ""),
                   ('-Z', "-Z Up", ""),
                   ),
            default='Z',
            )

    def execute(self, context):
        from . import export_3ds

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

        return export_3ds.save(self, context, **keywords)


# Add to a menu
def menu_func_export(self, context):
    self.layout.operator(Export3DS.bl_idname, text="3D Studio (.3ds)")


def menu_func_import(self, context):
    self.layout.operator(Import3DS.bl_idname, text="3D Studio (.3ds)")


def register():
    bpy.utils.register_module(__name__)

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


def unregister():
    bpy.utils.unregister_module(__name__)

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

# NOTES:
# why add 1 extra vertex? and remove it when done? - "Answer - eekadoodle - would need to re-order UV's without this since face order isnt always what we give blender, BMesh will solve :D"
# disabled scaling to size, this requires exposing bb (easy) and understanding how it works (needs some time)

if __name__ == "__main__":
    register()
