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blender-cloud-addon/blender_cloud/texture_browser.py
Sybren A. Stüvel a10b4a804c Added support for HDRi nodes. 
These nodes are like textures, except that here the user should choose
which variation to download (instead of downloading them all).
2016-07-21 11:03:23 +02:00

897 lines
32 KiB
Python
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# ##### 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 #####
import asyncio
import logging
import threading
import os
import bpy
import bgl
import blf
import pillarsdk
from . import async_loop, pillar, cache, blender
REQUIRED_ROLES_FOR_TEXTURE_BROWSER = {'subscriber', 'demo'}
MOUSE_SCROLL_PIXELS_PER_TICK = 50
ICON_WIDTH = 128
ICON_HEIGHT = 128
TARGET_ITEM_WIDTH = 400
TARGET_ITEM_HEIGHT = 128
ITEM_MARGIN_X = 5
ITEM_MARGIN_Y = 5
ITEM_PADDING_X = 5
library_path = '/tmp'
library_icons_path = os.path.join(os.path.dirname(__file__), "icons")
class SpecialFolderNode(pillarsdk.Node):
NODE_TYPE = 'SPECIAL'
class UpNode(SpecialFolderNode):
NODE_TYPE = 'UP'
def __init__(self):
super().__init__()
self['_id'] = 'UP'
self['node_type'] = self.NODE_TYPE
class ProjectNode(SpecialFolderNode):
NODE_TYPE = 'PROJECT'
def __init__(self, project):
super().__init__()
assert isinstance(project, pillarsdk.Project), 'wrong type for project: %r' % type(project)
self.merge(project.to_dict())
self['node_type'] = self.NODE_TYPE
class HdriFileNode(SpecialFolderNode):
NODE_TYPE = 'HDRI_FILE'
def __init__(self, hdri_node, file_idx):
super().__init__()
assert isinstance(hdri_node, pillarsdk.Node), \
'wrong type for hdri_node: %r' % type(hdri_node)
self.merge(hdri_node.to_dict())
self['node_type'] = self.NODE_TYPE
self['picture'] = None # force the download to use the files.
# Just represent that one file.
my_file = self['properties']['files'][file_idx]
self['properties']['files'] = [my_file]
self['resolution'] = my_file['resolution']
class MenuItem:
"""GUI menu item for the 3D View GUI."""
icon_margin_x = 4
icon_margin_y = 4
text_margin_x = 6
text_height = 16
text_width = 72
DEFAULT_ICONS = {
'FOLDER': os.path.join(library_icons_path, 'folder.png'),
'SPINNER': os.path.join(library_icons_path, 'spinner.png'),
}
FOLDER_NODE_TYPES = {'group_texture', 'group_hdri', 'hdri',
UpNode.NODE_TYPE, ProjectNode.NODE_TYPE}
SUPPORTED_NODE_TYPES = {HdriFileNode.NODE_TYPE, 'texture'}.union(FOLDER_NODE_TYPES)
def __init__(self, node, file_desc, thumb_path: str, label_text):
self.log = logging.getLogger('%s.MenuItem' % __name__)
if node['node_type'] not in self.SUPPORTED_NODE_TYPES:
self.log.info('Invalid node type in node: %s', node)
raise TypeError('Node of type %r not supported; supported are %r.' % (
node['node_type'], self.SUPPORTED_NODE_TYPES))
assert isinstance(node, pillarsdk.Node), 'wrong type for node: %r' % type(node)
assert isinstance(node['_id'], str), 'wrong type for node["_id"]: %r' % type(node['_id'])
self.node = node # pillarsdk.Node, contains 'node_type' key to indicate type
self.file_desc = file_desc # pillarsdk.File object, or None if a 'folder' node.
self.label_text = label_text
self._thumb_path = ''
self.icon = None
self._is_folder = node['node_type'] in self.FOLDER_NODE_TYPES
# Determine sorting order.
# by default, sort all the way at the end and folders first.
self._order = 0 if self._is_folder else 10000
if node and node.properties and node.properties.order is not None:
self._order = node.properties.order
self.thumb_path = thumb_path
# Updated when drawing the image
self.x = 0
self.y = 0
self.width = 0
self.height = 0
def sort_key(self):
"""Key for sorting lists of MenuItems."""
return self._order, self.label_text
@property
def thumb_path(self) -> str:
return self._thumb_path
@thumb_path.setter
def thumb_path(self, new_thumb_path: str):
self._thumb_path = self.DEFAULT_ICONS.get(new_thumb_path, new_thumb_path)
if self._thumb_path:
self.icon = bpy.data.images.load(filepath=self._thumb_path)
else:
self.icon = None
@property
def node_uuid(self) -> str:
return self.node['_id']
def represents(self, node) -> bool:
"""Returns True iff this MenuItem represents the given node."""
node_uuid = node['_id']
if self.node_uuid != node_uuid:
return False
# HDRi nodes can be represented using multiple MenuItems, one
# for each available resolution. We need to match on that too.
if self.node.node_type == HdriFileNode.NODE_TYPE:
return self.node.resolution == node.resolution
return True
def update(self, node, file_desc, thumb_path: str, label_text=None):
# We can get updated information about our Node, but a MenuItem should
# always represent one node, and it shouldn't be shared between nodes.
if self.node_uuid != node['_id']:
raise ValueError("Don't change the node ID this MenuItem reflects, "
"just create a new one.")
self.node = node
self.file_desc = file_desc # pillarsdk.File object, or None if a 'folder' node.
self.thumb_path = thumb_path
if label_text is not None:
self.label_text = label_text
@property
def is_folder(self) -> bool:
return self._is_folder
def update_placement(self, x, y, width, height):
"""Use OpenGL to draw this one menu item."""
self.x = x
self.y = y
self.width = width
self.height = height
def draw(self, highlighted: bool):
bgl.glEnable(bgl.GL_BLEND)
if highlighted:
bgl.glColor4f(0.555, 0.555, 0.555, 0.8)
else:
bgl.glColor4f(0.447, 0.447, 0.447, 0.8)
bgl.glRectf(self.x, self.y, self.x + self.width, self.y + self.height)
texture = self.icon
err = texture.gl_load(filter=bgl.GL_NEAREST, mag=bgl.GL_NEAREST)
assert not err, 'OpenGL error: %i' % err
bgl.glColor4f(0.0, 0.0, 1.0, 0.5)
# bgl.glLineWidth(1.5)
# ------ TEXTURE ---------#
bgl.glBindTexture(bgl.GL_TEXTURE_2D, texture.bindcode[0])
bgl.glEnable(bgl.GL_TEXTURE_2D)
bgl.glBlendFunc(bgl.GL_SRC_ALPHA, bgl.GL_ONE_MINUS_SRC_ALPHA)
bgl.glColor4f(1, 1, 1, 1)
bgl.glBegin(bgl.GL_QUADS)
bgl.glTexCoord2d(0, 0)
bgl.glVertex2d(self.x + self.icon_margin_x, self.y)
bgl.glTexCoord2d(0, 1)
bgl.glVertex2d(self.x + self.icon_margin_x, self.y + ICON_HEIGHT)
bgl.glTexCoord2d(1, 1)
bgl.glVertex2d(self.x + self.icon_margin_x + ICON_WIDTH, self.y + ICON_HEIGHT)
bgl.glTexCoord2d(1, 0)
bgl.glVertex2d(self.x + self.icon_margin_x + ICON_WIDTH, self.y)
bgl.glEnd()
bgl.glDisable(bgl.GL_TEXTURE_2D)
bgl.glDisable(bgl.GL_BLEND)
texture.gl_free()
# draw some text
font_id = 0
blf.position(font_id,
self.x + self.icon_margin_x + ICON_WIDTH + self.text_margin_x,
self.y + ICON_HEIGHT * 0.5 - 0.25 * self.text_height, 0)
blf.size(font_id, self.text_height, self.text_width)
blf.draw(font_id, self.label_text)
def hits(self, mouse_x: int, mouse_y: int) -> bool:
return self.x < mouse_x < self.x + self.width and self.y < mouse_y < self.y + self.height
class BlenderCloudBrowser(pillar.PillarOperatorMixin,
async_loop.AsyncModalOperatorMixin,
bpy.types.Operator):
bl_idname = 'pillar.browser'
bl_label = 'Blender Cloud Texture Browser'
_draw_handle = None
current_path = pillar.CloudPath('/')
project_name = ''
# This contains a stack of Node objects that lead up to the currently browsed node.
path_stack = []
timer = None
log = logging.getLogger('%s.BlenderCloudBrowser' % __name__)
_menu_item_lock = threading.Lock()
current_display_content = []
loaded_images = set()
thumbnails_cache = ''
maximized_area = False
mouse_x = 0
mouse_y = 0
scroll_offset = 0
scroll_offset_target = 0
scroll_offset_max = 0
scroll_offset_space_left = 0
def invoke(self, context, event):
# Refuse to start if the file hasn't been saved.
if context.blend_data.is_dirty:
self.report({'ERROR'}, 'Please save your Blend file before using '
'the Blender Cloud addon.')
return {'CANCELLED'}
wm = context.window_manager
self.current_path = pillar.CloudPath(wm.last_blender_cloud_location)
self.path_stack = [] # list of nodes that make up the current path.
self.thumbnails_cache = cache.cache_directory('thumbnails')
self.mouse_x = event.mouse_x
self.mouse_y = event.mouse_y
# See if we have to maximize the current area
if not context.screen.show_fullscreen:
self.maximized_area = True
bpy.ops.screen.screen_full_area(use_hide_panels=True)
# Add the region OpenGL drawing callback
# draw in view space with 'POST_VIEW' and 'PRE_VIEW'
self._draw_handle = context.space_data.draw_handler_add(
self.draw_menu, (context,), 'WINDOW', 'POST_PIXEL')
self.current_display_content = []
self.loaded_images = set()
self._scroll_reset()
context.window.cursor_modal_set('DEFAULT')
async_loop.AsyncModalOperatorMixin.invoke(self, context, event)
self._new_async_task(self.async_execute(context))
return {'RUNNING_MODAL'}
def modal(self, context, event):
result = async_loop.AsyncModalOperatorMixin.modal(self, context, event)
if not {'PASS_THROUGH', 'RUNNING_MODAL'}.intersection(result):
return result
if event.type == 'TAB' and event.value == 'RELEASE':
self.log.info('Ensuring async loop is running')
async_loop.ensure_async_loop()
if event.type == 'TIMER':
self._scroll_smooth()
context.area.tag_redraw()
return {'RUNNING_MODAL'}
if 'MOUSE' in event.type:
context.area.tag_redraw()
self.mouse_x = event.mouse_x
self.mouse_y = event.mouse_y
left_mouse_release = event.type == 'LEFTMOUSE' and event.value == 'RELEASE'
if self._state == 'PLEASE_SUBSCRIBE' and left_mouse_release:
self.open_browser_subscribe()
self._finish(context)
return {'FINISHED'}
if self._state == 'BROWSING':
selected = self.get_clicked()
if selected:
context.window.cursor_set('HAND')
else:
context.window.cursor_set('DEFAULT')
# Scrolling
if event.type == 'WHEELUPMOUSE':
self._scroll_by(MOUSE_SCROLL_PIXELS_PER_TICK)
context.area.tag_redraw()
elif event.type == 'WHEELDOWNMOUSE':
self._scroll_by(-MOUSE_SCROLL_PIXELS_PER_TICK)
context.area.tag_redraw()
elif event.type == 'TRACKPADPAN':
self._scroll_by(event.mouse_prev_y - event.mouse_y,
smooth=False)
context.area.tag_redraw()
if left_mouse_release:
if selected is None:
# No item clicked, ignore it.
return {'RUNNING_MODAL'}
if selected.is_folder:
self.descend_node(selected.node)
else:
if selected.file_desc is None:
# This can happen when the thumbnail information isn't loaded yet.
# Just ignore the click for now.
# TODO: think of a way to handle this properly.
self.log.debug('Selected item %r has no file_desc', selected)
return {'RUNNING_MODAL'}
self.handle_item_selection(context, selected)
if event.type in {'RIGHTMOUSE', 'ESC'}:
self._finish(context)
return {'CANCELLED'}
return {'RUNNING_MODAL'}
async def async_execute(self, context):
self._state = 'CHECKING_CREDENTIALS'
self.log.debug('Checking credentials')
try:
user_id = await self.check_credentials(context, REQUIRED_ROLES_FOR_TEXTURE_BROWSER)
except pillar.NotSubscribedToCloudError:
self.log.info('User not subscribed to Blender Cloud.')
self._show_subscribe_screen()
return None
if user_id is None:
raise pillar.UserNotLoggedInError()
await self.async_download_previews()
def _show_subscribe_screen(self):
"""Shows the "You need to subscribe" screen."""
self._state = 'PLEASE_SUBSCRIBE'
bpy.context.window.cursor_set('HAND')
def descend_node(self, node):
"""Descends the node hierarchy by visiting this node.
Also keeps track of the current node, so that we know where the "up" button should go.
"""
assert isinstance(node, pillarsdk.Node), 'Wrong type %s' % node
if isinstance(node, UpNode):
# Going up.
self.log.debug('Going up to %r', self.current_path)
self.current_path = self.current_path.parent
if self.path_stack:
self.path_stack.pop()
if not self.path_stack:
self.project_name = ''
else:
# Going down, keep track of where we were
if isinstance(node, ProjectNode):
self.project_name = node['name']
self.current_path /= node['_id']
self.log.debug('Going down to %r', self.current_path)
self.path_stack.append(node)
self.browse_assets()
@property
def node(self):
if not self.path_stack:
return None
return self.path_stack[-1]
def _finish(self, context):
self.log.debug('Finishing the modal operator')
async_loop.AsyncModalOperatorMixin._finish(self, context)
self.clear_images()
context.space_data.draw_handler_remove(self._draw_handle, 'WINDOW')
context.window.cursor_modal_restore()
if self.maximized_area:
bpy.ops.screen.screen_full_area(use_hide_panels=True)
context.area.tag_redraw()
self.log.debug('Modal operator finished')
def clear_images(self):
"""Removes all images we loaded from Blender's memory."""
for image in bpy.data.images:
if image.filepath_raw not in self.loaded_images:
continue
image.user_clear()
bpy.data.images.remove(image)
self.loaded_images.clear()
self.current_display_content.clear()
def add_menu_item(self, *args) -> MenuItem:
menu_item = MenuItem(*args)
# Just make this thread-safe to be on the safe side.
with self._menu_item_lock:
self.current_display_content.append(menu_item)
self.loaded_images.add(menu_item.icon.filepath_raw)
self.sort_menu()
return menu_item
def update_menu_item(self, node, *args) -> MenuItem:
node_uuid = node['_id']
# Just make this thread-safe to be on the safe side.
with self._menu_item_lock:
for menu_item in self.current_display_content:
if menu_item.represents(node):
menu_item.update(node, *args)
self.loaded_images.add(menu_item.icon.filepath_raw)
break
else:
raise ValueError('Unable to find MenuItem(node_uuid=%r)' % node_uuid)
self.sort_menu()
def sort_menu(self):
"""Sorts the self.current_display_content list."""
if not self.current_display_content:
return
with self._menu_item_lock:
self.current_display_content.sort(key=MenuItem.sort_key)
async def async_download_previews(self):
self._state = 'BROWSING'
thumbnails_directory = self.thumbnails_cache
self.log.info('Asynchronously downloading previews to %r', thumbnails_directory)
self.log.info('Current BCloud path is %r', self.current_path)
self.clear_images()
self._scroll_reset()
def thumbnail_loading(node, texture_node):
self.add_menu_item(node, None, 'SPINNER', texture_node['name'])
def thumbnail_loaded(node, file_desc, thumb_path):
self.update_menu_item(node, file_desc, thumb_path)
def hdri_thumbnail_loading(node, texture_node):
self.add_menu_item(node, None, 'SPINNER', node.resolution)
def hdri_thumbnail_loaded(node, file_desc, thumb_path):
self.update_menu_item(node, file_desc, thumb_path)
project_uuid = self.current_path.project_uuid
node_uuid = self.current_path.node_uuid
is_hdri_node = False
current_node = None
if node_uuid:
current_node = self.path_stack[-1]
is_hdri_node = current_node.node_type == 'hdri'
if is_hdri_node:
# No child folders
children = []
else:
# Query for sub-nodes of this node.
self.log.debug('Getting subnodes for parent node %r', node_uuid)
children = await pillar.get_nodes(parent_node_uuid=node_uuid,
node_type={'group_texture', 'group_hdri'})
elif project_uuid:
# Query for top-level nodes.
self.log.debug('Getting subnodes for project node %r', project_uuid)
children = await pillar.get_nodes(project_uuid=project_uuid,
parent_node_uuid='',
node_type={'group_texture', 'group_hdri'})
else:
# Query for projects
self.log.debug('No node UUID and no project UUID, listing available projects')
children = await pillar.get_texture_projects()
for proj_dict in children:
self.add_menu_item(ProjectNode(proj_dict), None, 'FOLDER', proj_dict['name'])
return
# Make sure we can go up again.
self.add_menu_item(UpNode(), None, 'FOLDER', '.. up ..')
# Download all child nodes
self.log.debug('Iterating over child nodes of %r', self.current_path)
for child in children:
# print(' - %(_id)s = %(name)s' % child)
if child['node_type'] not in MenuItem.SUPPORTED_NODE_TYPES:
self.log.debug('Skipping node of type %r', child['node_type'])
continue
self.add_menu_item(child, None, 'FOLDER', child['name'])
# There are only sub-nodes at the project level, no texture nodes,
# so we won't have to bother looking for textures.
if not node_uuid:
return
directory = os.path.join(thumbnails_directory, project_uuid, node_uuid)
os.makedirs(directory, exist_ok=True)
if is_hdri_node:
self.log.debug('This is a HDRi node')
# Construct a fake node for every file in the HDRi.
nodes = []
for file_idx, file_ref in enumerate(current_node.properties.files):
node = HdriFileNode(current_node, file_idx)
nodes.append(node)
await pillar.fetch_node_thumbs(nodes, 's', directory,
thumbnail_loading=hdri_thumbnail_loading,
thumbnail_loaded=hdri_thumbnail_loaded,
future=self.signalling_future)
self.log.debug('Constructed %i HDRi children', len(current_node.properties.files))
else:
self.log.debug('Fetching texture thumbnails for node %r', node_uuid)
await pillar.fetch_texture_thumbs(node_uuid, 's', directory,
thumbnail_loading=thumbnail_loading,
thumbnail_loaded=thumbnail_loaded,
future=self.signalling_future)
def browse_assets(self):
self.log.debug('Browsing assets at %r', self.current_path)
self._new_async_task(self.async_download_previews())
def draw_menu(self, context):
"""Draws the GUI with OpenGL."""
drawers = {
'CHECKING_CREDENTIALS': self._draw_checking_credentials,
'BROWSING': self._draw_browser,
'DOWNLOADING_TEXTURE': self._draw_downloading,
'EXCEPTION': self._draw_exception,
'PLEASE_SUBSCRIBE': self._draw_subscribe,
}
if self._state in drawers:
drawer = drawers[self._state]
drawer(context)
# For debugging: draw the state
font_id = 0
bgl.glColor4f(1.0, 1.0, 1.0, 1.0)
blf.size(font_id, 20, 72)
blf.position(font_id, 5, 5, 0)
blf.draw(font_id, '%s %s' % (self._state, self.project_name))
bgl.glDisable(bgl.GL_BLEND)
@staticmethod
def _window_region(context):
window_regions = [region
for region in context.area.regions
if region.type == 'WINDOW']
return window_regions[0]
def _draw_browser(self, context):
"""OpenGL drawing code for the BROWSING state."""
window_region = self._window_region(context)
content_width = window_region.width - ITEM_MARGIN_X * 2
content_height = window_region.height - ITEM_MARGIN_Y * 2
content_x = ITEM_MARGIN_X
content_y = context.area.height - ITEM_MARGIN_Y - TARGET_ITEM_HEIGHT
col_count = content_width // TARGET_ITEM_WIDTH
item_width = (content_width - (col_count * ITEM_PADDING_X)) / col_count
item_height = TARGET_ITEM_HEIGHT
block_width = item_width + ITEM_PADDING_X
block_height = item_height + ITEM_MARGIN_Y
bgl.glEnable(bgl.GL_BLEND)
bgl.glColor4f(0.0, 0.0, 0.0, 0.6)
bgl.glRectf(0, 0, window_region.width, window_region.height)
if self.current_display_content:
bottom_y = float('inf')
# The -1 / +2 are for extra rows that are drawn only half at the top/bottom.
first_item_idx = max(0, int(-self.scroll_offset // block_height - 1) * col_count)
items_per_page = int(content_height // item_height + 2) * col_count
last_item_idx = first_item_idx + items_per_page
for item_idx, item in enumerate(self.current_display_content):
x = content_x + (item_idx % col_count) * block_width
y = content_y - (item_idx // col_count) * block_height - self.scroll_offset
item.update_placement(x, y, item_width, item_height)
if first_item_idx <= item_idx < last_item_idx:
# Only draw if the item is actually on screen.
item.draw(highlighted=item.hits(self.mouse_x, self.mouse_y))
bottom_y = min(y, bottom_y)
bgl.glColor4f(0.24, 0.68, 0.91, 1)
bgl.glRectf(0,
bottom_y - ITEM_MARGIN_Y,
window_region.width,
bottom_y+1 - ITEM_MARGIN_Y)
self.scroll_offset_space_left = window_region.height - bottom_y
self.scroll_offset_max = (self.scroll_offset -
self.scroll_offset_space_left +
0.25 * block_height)
else:
font_id = 0
text = "Communicating with Blender Cloud"
bgl.glColor4f(1.0, 1.0, 1.0, 1.0)
blf.size(font_id, 20, 72)
text_width, text_height = blf.dimensions(font_id, text)
blf.position(font_id,
content_x + content_width * 0.5 - text_width * 0.5,
content_y - content_height * 0.3 + text_height * 0.5, 0)
blf.draw(font_id, text)
bgl.glDisable(bgl.GL_BLEND)
# bgl.glColor4f(0.0, 0.0, 0.0, 1.0)
def _draw_downloading(self, context):
"""OpenGL drawing code for the DOWNLOADING_TEXTURE state."""
self._draw_text_on_colour(context,
'Downloading texture from Blender Cloud',
(0.0, 0.0, 0.2, 0.6))
def _draw_checking_credentials(self, context):
"""OpenGL drawing code for the CHECKING_CREDENTIALS state."""
self._draw_text_on_colour(context,
'Checking login credentials',
(0.0, 0.0, 0.2, 0.6))
def _draw_text_on_colour(self, context, text, bgcolour):
content_height, content_width = self._window_size(context)
bgl.glEnable(bgl.GL_BLEND)
bgl.glColor4f(*bgcolour)
bgl.glRectf(0, 0, content_width, content_height)
font_id = 0
bgl.glColor4f(1.0, 1.0, 1.0, 1.0)
blf.size(font_id, 20, 72)
text_width, text_height = blf.dimensions(font_id, text)
blf.position(font_id,
content_width * 0.5 - text_width * 0.5,
content_height * 0.7 + text_height * 0.5, 0)
blf.draw(font_id, text)
bgl.glDisable(bgl.GL_BLEND)
def _window_size(self, context):
window_region = self._window_region(context)
content_width = window_region.width
content_height = window_region.height
return content_height, content_width
def _draw_exception(self, context):
"""OpenGL drawing code for the EXCEPTION state."""
import textwrap
content_height, content_width = self._window_size(context)
bgl.glEnable(bgl.GL_BLEND)
bgl.glColor4f(0.2, 0.0, 0.0, 0.6)
bgl.glRectf(0, 0, content_width, content_height)
font_id = 0
ex = self.async_task.exception()
if isinstance(ex, pillar.UserNotLoggedInError):
ex_msg = 'You are not logged in on Blender ID. Please log in at User Preferences, ' \
'System, Blender ID.'
else:
ex_msg = str(ex)
if not ex_msg:
ex_msg = str(type(ex))
text = "An error occurred:\n%s" % ex_msg
lines = textwrap.wrap(text)
bgl.glColor4f(1.0, 1.0, 1.0, 1.0)
blf.size(font_id, 20, 72)
_, text_height = blf.dimensions(font_id, 'yhBp')
def position(line_nr):
blf.position(font_id,
content_width * 0.1,
content_height * 0.8 - line_nr * text_height, 0)
for line_idx, line in enumerate(lines):
position(line_idx)
blf.draw(font_id, line)
bgl.glDisable(bgl.GL_BLEND)
def _draw_subscribe(self, context):
self._draw_text_on_colour(context,
'Click to subscribe to the Blender Cloud',
(0.0, 0.0, 0.2, 0.6))
def get_clicked(self) -> MenuItem:
for item in self.current_display_content:
if item.hits(self.mouse_x, self.mouse_y):
return item
return None
def handle_item_selection(self, context, item: MenuItem):
"""Called when the user clicks on a menu item that doesn't represent a folder."""
from pillarsdk.utils import sanitize_filename
self.clear_images()
self._state = 'DOWNLOADING_TEXTURE'
node_path_components = (node['name'] for node in self.path_stack if node is not None)
local_path_components = [sanitize_filename(comp) for comp in node_path_components]
top_texture_directory = bpy.path.abspath(context.scene.local_texture_dir)
local_path = os.path.join(top_texture_directory, *local_path_components)
meta_path = os.path.join(top_texture_directory, '.blender_cloud')
self.log.info('Downloading texture %r to %s', item.node_uuid, local_path)
self.log.debug('Metadata will be stored at %s', meta_path)
file_paths = []
select_dblock = None
def texture_downloading(file_path, file_desc, *args):
self.log.info('Texture downloading to %s', file_path)
def texture_downloaded(file_path, file_desc, *args):
nonlocal select_dblock
self.log.info('Texture downloaded to %r.', file_path)
image_dblock = bpy.data.images.load(filepath=file_path)
image_dblock['bcloud_file_uuid'] = file_desc['_id']
image_dblock['bcloud_texture_node_uuid'] = item.node_uuid
# Select the image in the image editor (if the context is right).
# Just set the first image we download,
if context.area.type == 'IMAGE_EDITOR':
if select_dblock is None or file_desc.map_type == 'color':
select_dblock = image_dblock
context.space_data.image = select_dblock
file_paths.append(file_path)
def texture_download_completed(_):
self.log.info('Texture download complete, inspect:\n%s', '\n'.join(file_paths))
self._state = 'QUIT'
signalling_future = asyncio.Future()
self._new_async_task(pillar.download_texture(item.node, local_path,
metadata_directory=meta_path,
texture_loading=texture_downloading,
texture_loaded=texture_downloaded,
future=signalling_future))
self.async_task.add_done_callback(texture_download_completed)
def open_browser_subscribe(self):
import webbrowser
webbrowser.open_new_tab('https://cloud.blender.org/join')
self.report({'INFO'}, 'We just started a browser for you.')
def _scroll_smooth(self):
diff = self.scroll_offset_target - self.scroll_offset
if diff == 0:
return
if abs(round(diff)) < 1:
self.scroll_offset = self.scroll_offset_target
return
self.scroll_offset += diff * 0.5
def _scroll_by(self, amount, *, smooth=True):
# Slow down scrolling up
if smooth and amount < 0 and -amount > self.scroll_offset_space_left / 4:
amount = -self.scroll_offset_space_left / 4
self.scroll_offset_target = min(0,
max(self.scroll_offset_max,
self.scroll_offset_target + amount))
if not smooth:
self._scroll_offset = self.scroll_offset_target
def _scroll_reset(self):
self.scroll_offset_target = self.scroll_offset = 0
# store keymaps here to access after registration
addon_keymaps = []
def image_editor_menu(self, context):
self.layout.operator(BlenderCloudBrowser.bl_idname,
text='Get image from Blender Cloud',
icon_value=blender.icon('CLOUD'))
def register():
bpy.utils.register_class(BlenderCloudBrowser)
bpy.types.IMAGE_MT_image.prepend(image_editor_menu)
# handle the keymap
wm = bpy.context.window_manager
kc = wm.keyconfigs.addon
if not kc:
print('No addon key configuration space found, so no custom hotkeys added.')
return
km = kc.keymaps.new(name='Screen')
kmi = km.keymap_items.new('pillar.browser', 'A', 'PRESS', ctrl=True, shift=True, alt=True)
addon_keymaps.append((km, kmi))
def unregister():
# handle the keymap
for km, kmi in addon_keymaps:
km.keymap_items.remove(kmi)
addon_keymaps.clear()
bpy.types.IMAGE_MT_image.remove(image_editor_menu)
bpy.utils.unregister_class(BlenderCloudBrowser)
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