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# <pep8-80 compliant>
# ##### 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 #####
__author__ = "Nutti <nutti.metro@gmail.com>"
__status__ = "production"
__version__ = "5.2"
__date__ = "17 Nov 2018"
from collections import namedtuple
import bpy
import mathutils
_Rect = namedtuple('Rect', 'x0 y0 x1 y1')
_Rect2 = namedtuple('Rect2', 'x y width height')
def get_loaded_texture_name(_, __):
items = [(key, key, "") for key in bpy.data.images.keys()]
items.append(("None", "None", ""))
return items
def get_canvas(context, magnitude):
"""
Get canvas to be renderred texture
"""
sc = context.scene
prefs = context.user_preferences.addons["uv_magic_uv"].preferences
region_w = context.region.width
region_h = context.region.height
canvas_w = region_w - prefs.texture_projection_canvas_padding[0] * 2.0
canvas_h = region_h - prefs.texture_projection_canvas_padding[1] * 2.0
img = bpy.data.images[sc.muv_texture_projection_tex_image]
tex_w = img.size[0]
tex_h = img.size[1]
center_x = region_w * 0.5
center_y = region_h * 0.5
if sc.muv_texture_projection_adjust_window:
ratio_x = canvas_w / tex_w
ratio_y = canvas_h / tex_h
if sc.muv_texture_projection_apply_tex_aspect:
ratio = ratio_y if ratio_x > ratio_y else ratio_x
len_x = ratio * tex_w
len_y = ratio * tex_h
else:
len_x = canvas_w
len_y = canvas_h
else:
if sc.muv_texture_projection_apply_tex_aspect:
len_x = tex_w * magnitude
len_y = tex_h * magnitude
else:
len_x = region_w * magnitude
len_y = region_h * magnitude
x0 = int(center_x - len_x * 0.5)
y0 = int(center_y - len_y * 0.5)
x1 = int(center_x + len_x * 0.5)
y1 = int(center_y + len_y * 0.5)
return _Rect(x0, y0, x1, y1)
def rect_to_rect2(rect):
"""
Convert Rect1 to Rect2
"""
return _Rect2(rect.x0, rect.y0, rect.x1 - rect.x0, rect.y1 - rect.y0)
def region_to_canvas(rg_vec, canvas):
"""
Convert screen region to canvas
"""
cv_rect = rect_to_rect2(canvas)
cv_vec = mathutils.Vector()
cv_vec.x = (rg_vec.x - cv_rect.x) / cv_rect.width
cv_vec.y = (rg_vec.y - cv_rect.y) / cv_rect.height
return cv_vec
def is_valid_context(context):
obj = context.object
# only edit mode is allowed to execute
if obj is None:
return False
if obj.type != 'MESH':
return False
if context.object.mode != 'EDIT':
return False
# only 'VIEW_3D' space is allowed to execute
for space in context.area.spaces:
if space.type == 'VIEW_3D':
break
else:
return False
return True
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