Sybren A. Stüvel
e32d7de7a6
This means that some information isn't available to the callback yet, but it can show the filename & spinner logo much sooner.
445 lines
15 KiB
Python
445 lines
15 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# Copyright (C) 2014 Blender Aid
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# http://www.blendearaid.com
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# blenderaid@gmail.com
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# ##### END GPL LICENSE BLOCK #####
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import asyncio
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import threading
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import bpy
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import bgl
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import blf
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import os
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from bpy.types import AddonPreferences
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from bpy.props import (BoolProperty, EnumProperty,
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FloatProperty, FloatVectorProperty,
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IntProperty, StringProperty)
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from . import async_loop, pillar
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icon_width = 128
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icon_height = 128
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target_item_width = 400
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target_item_height = 128
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library_path = '/tmp'
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library_icons_path = os.path.join(os.path.dirname(__file__), "icons")
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class MenuItem:
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"""GUI menu item for the 3D View GUI."""
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icon_margin_x = 4
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icon_margin_y = 4
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text_margin_x = 6
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text_height = 16
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text_width = 72
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DEFAULT_ICONS = {
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'FOLDER': os.path.join(library_icons_path, 'folder.png'),
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'SPINNER': os.path.join(library_icons_path, 'spinner.png'),
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}
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def __init__(self, node_uuid: str, file_desc, thumb_path: str, label_text):
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self.node_uuid = node_uuid # pillarsdk.Node UUID of a texture node
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self.file_desc = file_desc # pillarsdk.File object, or None if a 'folder' node.
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self.label_text = label_text
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self._thumb_path = ''
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self.icon = None
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self.thumb_path = thumb_path
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# Updated when drawing the image
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self.x = 0
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self.y = 0
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self.width = 0
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self.height = 0
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@property
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def thumb_path(self) -> str:
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return self._thumb_path
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@thumb_path.setter
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def thumb_path(self, new_thumb_path: str):
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self._thumb_path = self.DEFAULT_ICONS.get(new_thumb_path, new_thumb_path)
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if self._thumb_path:
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self.icon = bpy.data.images.load(filepath=self._thumb_path)
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else:
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self.icon = None
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def update(self, file_desc, thumb_path: str, label_text):
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self.file_desc = file_desc # pillarsdk.File object, or None if a 'folder' node.
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self.thumb_path = thumb_path
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self.label_text = label_text
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@property
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def is_folder(self) -> bool:
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return self.file_desc is None
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def update_placement(self, x, y, width, height):
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"""Use OpenGL to draw this one menu item."""
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self.x = x
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self.y = y
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self.width = width
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self.height = height
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def draw(self, highlighted: bool):
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bgl.glEnable(bgl.GL_BLEND)
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if highlighted:
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bgl.glColor4f(0.555, 0.555, 0.555, 0.8)
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else:
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bgl.glColor4f(0.447, 0.447, 0.447, 0.8)
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bgl.glRectf(self.x, self.y, self.x + self.width, self.y + self.height)
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texture = self.icon
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err = texture.gl_load(filter=bgl.GL_NEAREST, mag=bgl.GL_NEAREST)
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assert not err, 'OpenGL error: %i' % err
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bgl.glColor4f(0.0, 0.0, 1.0, 0.5)
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# bgl.glLineWidth(1.5)
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# ------ TEXTURE ---------#
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bgl.glBindTexture(bgl.GL_TEXTURE_2D, texture.bindcode[0])
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bgl.glEnable(bgl.GL_TEXTURE_2D)
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bgl.glBlendFunc(bgl.GL_SRC_ALPHA, bgl.GL_ONE_MINUS_SRC_ALPHA)
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bgl.glColor4f(1, 1, 1, 1)
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bgl.glBegin(bgl.GL_QUADS)
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bgl.glTexCoord2d(0, 0)
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bgl.glVertex2d(self.x + self.icon_margin_x, self.y)
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bgl.glTexCoord2d(0, 1)
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bgl.glVertex2d(self.x + self.icon_margin_x, self.y + icon_height)
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bgl.glTexCoord2d(1, 1)
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bgl.glVertex2d(self.x + self.icon_margin_x + icon_width, self.y + icon_height)
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bgl.glTexCoord2d(1, 0)
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bgl.glVertex2d(self.x + self.icon_margin_x + icon_width, self.y)
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bgl.glEnd()
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bgl.glDisable(bgl.GL_TEXTURE_2D)
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bgl.glDisable(bgl.GL_BLEND)
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texture.gl_free()
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# draw some text
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font_id = 0
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blf.position(font_id,
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self.x + self.icon_margin_x + icon_width + self.text_margin_x,
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self.y + icon_height * 0.5 - 0.25 * self.text_height, 0)
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blf.size(font_id, self.text_height, self.text_width)
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blf.draw(font_id, self.label_text)
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def hits(self, mouse_x: int, mouse_y: int) -> bool:
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return self.x < mouse_x < self.x + self.width and self.y < mouse_y < self.y + self.height
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class BlenderCloudBrowser(bpy.types.Operator):
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bl_idname = 'pillar.browser'
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bl_label = 'Blender Cloud Texture Browser'
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_draw_handle = None
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project_uuid = '5672beecc0261b2005ed1a33' # Blender Cloud project UUID
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node_uuid = '' # Blender Cloud node UUID
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async_task = None # asyncio task for fetching thumbnails
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timer = None
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_menu_item_lock = threading.Lock()
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current_path = ''
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current_display_content = []
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loaded_images = set()
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thumbnails_cache = ''
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mouse_x = 0
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mouse_y = 0
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def invoke(self, context, event):
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if context.area.type != 'VIEW_3D':
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self.report({'WARNING'}, "View3D not found, cannot show asset flinger")
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return {'CANCELLED'}
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print('Area is %s' % context.area)
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wm = context.window_manager
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self.thumbnails_cache = wm.thumbnails_cache
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self.project_uuid = wm.blender_cloud_project
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self.node_uuid = wm.blender_cloud_node
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self.mouse_x = event.mouse_region_x
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self.mouse_y = event.mouse_region_y
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# Add the region OpenGL drawing callback
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# draw in view space with 'POST_VIEW' and 'PRE_VIEW'
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self._draw_handle = bpy.types.SpaceView3D.draw_handler_add(
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self.draw_menu, (context,), 'WINDOW', 'POST_PIXEL')
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self.current_display_content = []
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self.loaded_images = set()
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self.browse_assets(context)
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context.window_manager.modal_handler_add(self)
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self.timer = context.window_manager.event_timer_add(1/30, context.window)
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return {'RUNNING_MODAL'}
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def modal(self, context, event):
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if event.type == 'TIMER':
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context.area.tag_redraw()
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return {'RUNNING_MODAL'}
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if 'MOUSE' in event.type:
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context.area.tag_redraw()
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self.mouse_x = event.mouse_region_x
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self.mouse_y = event.mouse_region_y
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if event.type == 'LEFTMOUSE' and event.value == 'RELEASE':
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selected = self.get_clicked()
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if selected is None:
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self._finish(context)
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return {'FINISHED'}
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if selected.is_folder:
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self.node_uuid = selected.node_uuid
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self.browse_assets(context)
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else:
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self.handle_item_selection(selected)
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self._finish(context)
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return {'FINISHED'}
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elif event.type in {'RIGHTMOUSE', 'ESC'}:
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self._finish(context)
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return {'CANCELLED'}
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return {'RUNNING_MODAL'}
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def _stop_async_task(self):
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if self.async_task is None:
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return
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if not self.async_task.done():
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print('Cancelling running async download task {}'.format(self.async_task))
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self.async_task.cancel()
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else:
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self.async_task.result() # This re-raises any exception of the task.
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def _finish(self, context):
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self._stop_async_task()
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bpy.types.SpaceView3D.draw_handler_remove(self._draw_handle, 'WINDOW')
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context.window_manager.event_timer_remove(self.timer)
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context.area.tag_redraw()
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def clear_images(self):
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"""Removes all images we loaded from Blender's memory."""
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for image in bpy.data.images:
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if image.filepath_raw not in self.loaded_images:
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continue
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image.user_clear()
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bpy.data.images.remove(image)
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self.loaded_images.clear()
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self.current_display_content.clear()
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def add_menu_item(self, *args) -> MenuItem:
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menu_item = MenuItem(*args)
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# Just make this thread-safe to be on the safe side.
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with self._menu_item_lock:
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self.current_display_content.append(menu_item)
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self.loaded_images.add(menu_item.icon.filepath_raw)
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return menu_item
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def update_menu_item(self, node_uuid, *args) -> MenuItem:
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# Just make this thread-safe to be on the safe side.
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with self._menu_item_lock:
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for menu_item in self.current_display_content:
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if menu_item.node_uuid == node_uuid:
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menu_item.update(*args)
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self.loaded_images.add(menu_item.icon.filepath_raw)
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break
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else:
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raise ValueError('Unable to find MenuItem(node_uuid=%r)' % node_uuid)
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async def async_download_previews(self, context, thumbnails_directory):
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# If we have a node UUID, we fetch the textures
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# FIXME: support mixture of sub-nodes and textures under one node.
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self.clear_images()
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def redraw():
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# region = context.region
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# if region is None:
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# print('Unable to redraw, region is %s' % region)
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# print(' (context is %s)' % context)
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# return
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# region.tag_redraw()
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pass
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def thumbnail_loading(node_uuid, texture_node):
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self.add_menu_item(node_uuid, None, 'SPINNER', texture_node['name'])
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redraw()
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def thumbnail_loaded(node_uuid, file_desc, thumb_path):
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# update MenuItem added above
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self.update_menu_item(node_uuid, file_desc, thumb_path, file_desc['filename'])
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redraw()
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if self.node_uuid:
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# Make sure we can go up again.
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parent_uuid = await pillar.parent_node_uuid(self.node_uuid)
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self.add_menu_item(parent_uuid, None, 'FOLDER', '.. up ..')
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directory = os.path.join(thumbnails_directory, self.project_uuid, self.node_uuid)
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os.makedirs(directory, exist_ok=True)
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await pillar.fetch_texture_thumbs(self.node_uuid, 's', directory,
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thumbnail_loading=thumbnail_loading,
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thumbnail_loaded=thumbnail_loaded)
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elif self.project_uuid:
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children = await pillar.get_nodes(self.project_uuid, '')
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for child in children:
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print(' - %(_id)s = %(name)s' % child)
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self.add_menu_item(child['_id'], None, 'FOLDER', child['name'])
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redraw()
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else:
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# TODO: add "nothing here" icon and trigger re-draw
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redraw()
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# Call the 'done' callback.
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loop = asyncio.get_event_loop()
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loop.call_soon_threadsafe(self.downloading_done)
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def browse_assets(self, context):
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self._stop_async_task()
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self.clear_images()
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# Download the previews asynchronously.
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self.async_task = asyncio.ensure_future(
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self.async_download_previews(context, self.thumbnails_cache))
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# Start the async manager so everything happens.
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async_loop.ensure_async_loop()
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def downloading_done(self):
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# if not self.async_task.done():
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# print('%s: aborting download task' % self)
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# self._stop_async_task()
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# else:
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# print('%s: downloading done' % self)
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# self.async_task.result()
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pass
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def draw_menu(self, context):
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margin_x = 20
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margin_y = 5
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padding_x = 5
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content_width = context.area.regions[4].width - margin_x * 2
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content_height = context.area.regions[4].height - margin_y * 2
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content_x = margin_x
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content_y = context.area.height - margin_y - target_item_height - 50
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col_count = content_width // target_item_width
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item_width = (content_width - (col_count * padding_x)) / col_count
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item_height = target_item_height
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block_width = item_width + padding_x
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block_height = item_height + margin_y
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bgl.glEnable(bgl.GL_BLEND)
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bgl.glColor4f(0.0, 0.0, 0.0, 0.6)
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bgl.glRectf(0, 0, context.area.regions[4].width, context.area.regions[4].height)
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if self.current_display_content:
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for item_idx, item in enumerate(self.current_display_content):
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x = (item_idx % col_count) * block_width
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y = content_y - (item_idx // col_count) * block_height
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item.update_placement(x, y, item_width, item_height)
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item.draw(highlighted=item.hits(self.mouse_x, self.mouse_y))
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else:
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font_id = 0
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text = "Communicating with Blender Cloud"
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bgl.glColor4f(1.0, 1.0, 1.0, 1.0)
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blf.size(font_id, 20, 72)
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text_width, text_height = blf.dimensions(font_id, text)
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blf.position(font_id, content_x + content_width * 0.5 - text_width * 0.5,
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content_y - content_height * 0.3 + text_height * 0.5, 0)
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blf.draw(font_id, text)
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bgl.glDisable(bgl.GL_BLEND)
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# bgl.glColor4f(0.0, 0.0, 0.0, 1.0)
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def get_clicked(self) -> MenuItem:
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for item in self.current_display_content:
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if item.hits(self.mouse_x, self.mouse_y):
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return item
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return None
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def handle_item_selection(self, item: MenuItem):
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"""Called when the user clicks on a menu item that doesn't represent a folder."""
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pass
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# store keymaps here to access after registration
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addon_keymaps = []
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def menu_draw(self, context):
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layout = self.layout
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layout.separator()
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layout.operator(BlenderCloudBrowser.bl_idname, icon='MOD_SCREW')
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def register():
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bpy.utils.register_class(BlenderCloudBrowser)
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bpy.types.INFO_MT_mesh_add.append(menu_draw)
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# handle the keymap
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wm = bpy.context.window_manager
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kc = wm.keyconfigs.addon
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if not kc:
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print('No addon key configuration space found, so no custom hotkeys added.')
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return
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km = kc.keymaps.new(name='3D View', space_type='VIEW_3D')
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kmi = km.keymap_items.new('pillar.browser', 'A', 'PRESS', ctrl=True, shift=True, alt=True)
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addon_keymaps.append((km, kmi))
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def unregister():
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bpy.utils.unregister_class(BlenderCloudBrowser)
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# handle the keymap
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for km, kmi in addon_keymaps:
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km.keymap_items.remove(kmi)
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addon_keymaps.clear()
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if __name__ == "__main__":
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register()
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