forked from bartvdbraak/blender
286 lines
8.1 KiB
Python
286 lines
8.1 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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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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#
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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, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# <pep8 compliant>
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import sys
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import bpy
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language_id = 'python'
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# store our own __main__ module, not 100% needed
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# but python expects this in some places
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_BPY_MAIN_OWN = True
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def add_scrollback(text, text_type):
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for l in text.split('\n'):
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bpy.ops.console.scrollback_append(text=l.replace('\t', ' '),
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type=text_type)
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def get_console(console_id):
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'''
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helper function for console operators
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currently each text datablock gets its own
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console - code.InteractiveConsole()
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...which is stored in this function.
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console_id can be any hashable type
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'''
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from code import InteractiveConsole
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consoles = getattr(get_console, "consoles", None)
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hash_next = hash(bpy.context.window_manager)
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if consoles is None:
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consoles = get_console.consoles = {}
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get_console.consoles_namespace_hash = hash_next
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else:
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# check if clearning the namespace is needed to avoid a memory leak.
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# the window manager is normally loaded with new blend files
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# so this is a reasonable way to deal with namespace clearing.
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# bpy.data hashing is reset by undo so cant be used.
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hash_prev = getattr(get_console, "consoles_namespace_hash", 0)
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if hash_prev != hash_next:
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get_console.consoles_namespace_hash = hash_next
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consoles.clear()
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console_data = consoles.get(console_id)
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if console_data:
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console, stdout, stderr = console_data
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# XXX, bug in python 3.1.2 ? (worked in 3.1.1)
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# seems there is no way to clear StringIO objects for writing, have to make new ones each time.
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import io
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stdout = io.StringIO()
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stderr = io.StringIO()
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else:
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if _BPY_MAIN_OWN:
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import types
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bpy_main_mod = types.ModuleType("__main__")
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namespace = bpy_main_mod.__dict__
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else:
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namespace = {}
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namespace["__builtins__"] = sys.modules["builtins"]
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namespace["bpy"] = bpy
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namespace["C"] = bpy.context
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console = InteractiveConsole(locals=namespace, filename="<blender_console>")
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if _BPY_MAIN_OWN:
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console._bpy_main_mod = bpy_main_mod
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import io
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stdout = io.StringIO()
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stderr = io.StringIO()
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consoles[console_id] = console, stdout, stderr
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return console, stdout, stderr
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# Both prompts must be the same length
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PROMPT = '>>> '
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PROMPT_MULTI = '... '
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def execute(context):
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sc = context.space_data
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try:
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line_object = sc.history[-1]
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except:
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return {'CANCELLED'}
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if sc.console_type != 'PYTHON':
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return {'CANCELLED'}
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console, stdout, stderr = get_console(hash(context.region))
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# redirect output
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sys.stdout = stdout
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sys.stderr = stderr
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# dont allow the stdin to be used, can lock blender.
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stdin_backup = sys.stdin
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sys.stdin = None
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if _BPY_MAIN_OWN:
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main_mod_back = sys.modules["__main__"]
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sys.modules["__main__"] = console._bpy_main_mod
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# incase exception happens
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line = "" # incase of encodingf error
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is_multiline = False
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try:
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line = line_object.body
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# run the console, "\n" executes a multiline statement
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line_exec = line if line.strip() else "\n"
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is_multiline = console.push(line_exec)
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except:
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# unlikely, but this can happen with unicode errors for example.
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import traceback
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stderr.write(traceback.format_exc())
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if _BPY_MAIN_OWN:
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sys.modules["__main__"] = main_mod_back
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stdout.seek(0)
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stderr.seek(0)
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output = stdout.read()
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output_err = stderr.read()
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# cleanup
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sys.stdout = sys.__stdout__
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sys.stderr = sys.__stderr__
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sys.last_traceback = None
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# So we can reuse, clear all data
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stdout.truncate(0)
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stderr.truncate(0)
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bpy.ops.console.scrollback_append(text=sc.prompt + line, type='INPUT')
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if is_multiline:
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sc.prompt = PROMPT_MULTI
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else:
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sc.prompt = PROMPT
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# insert a new blank line
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bpy.ops.console.history_append(text="", current_character=0,
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remove_duplicates=True)
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# Insert the output into the editor
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# not quite correct because the order might have changed,
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# but ok 99% of the time.
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if output:
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add_scrollback(output, 'OUTPUT')
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if output_err:
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add_scrollback(output_err, 'ERROR')
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# restore the stdin
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sys.stdin = stdin_backup
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return {'FINISHED'}
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def autocomplete(context):
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from console import intellisense
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sc = context.space_data
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console = get_console(hash(context.region))[0]
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if not console:
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return {'CANCELLED'}
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if sc.console_type != 'PYTHON':
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return {'CANCELLED'}
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# dont allow the stdin to be used, can lock blender.
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# note: unlikely stdin would be used for autocomp. but its possible.
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stdin_backup = sys.stdin
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sys.stdin = None
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scrollback = ""
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scrollback_error = ""
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if _BPY_MAIN_OWN:
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main_mod_back = sys.modules["__main__"]
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sys.modules["__main__"] = console._bpy_main_mod
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try:
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current_line = sc.history[-1]
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line = current_line.body
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# This function isnt aware of the text editor or being an operator
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# just does the autocomp then copy its results back
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current_line.body, current_line.current_character, scrollback = \
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intellisense.expand(
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line=current_line.body,
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cursor=current_line.current_character,
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namespace=console.locals,
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private=bpy.app.debug)
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except:
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# unlikely, but this can happen with unicode errors for example.
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# or if the api attribute access its self causes an error.
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import traceback
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scrollback_error = traceback.format_exc()
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if _BPY_MAIN_OWN:
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sys.modules["__main__"] = main_mod_back
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# Separate automplete output by command prompts
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if scrollback != '':
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bpy.ops.console.scrollback_append(text=sc.prompt + current_line.body, type='INPUT')
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# Now we need to copy back the line from blender back into the
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# text editor. This will change when we dont use the text editor
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# anymore
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if scrollback:
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add_scrollback(scrollback, 'INFO')
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if scrollback_error:
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add_scrollback(scrollback_error, 'ERROR')
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# restore the stdin
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sys.stdin = stdin_backup
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context.area.tag_redraw()
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return {'FINISHED'}
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def banner(context):
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sc = context.space_data
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version_string = sys.version.strip().replace('\n', ' ')
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add_scrollback(" * Python Interactive Console %s *" % version_string, 'OUTPUT')
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add_scrollback("Command History: Up/Down Arrow", 'OUTPUT')
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add_scrollback("Cursor: Left/Right Home/End", 'OUTPUT')
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add_scrollback("Remove: Backspace/Delete", 'OUTPUT')
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add_scrollback("Execute: Enter", 'OUTPUT')
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add_scrollback("Autocomplete: Ctrl+Space", 'OUTPUT')
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add_scrollback("Ctrl +/- Wheel: Zoom", 'OUTPUT')
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add_scrollback("Builtin Modules: bpy, bpy.data, bpy.ops, bpy.props, bpy.types, bpy.context, bgl, blf, mathutils, geometry", 'OUTPUT')
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add_scrollback("", 'OUTPUT')
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add_scrollback(" WARNING!!! Blender 2.5 API is subject to change, see API reference for more info.", 'ERROR')
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add_scrollback("", 'OUTPUT')
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sc.prompt = PROMPT
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return {'FINISHED'}
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def register():
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pass
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def unregister():
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pass
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if __name__ == "__main__":
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register()
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