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models.py
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models.py
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import os
from ipywidgets import widgets
from serial import Dictable
from urllib import quote_plus
from IPython.display import display
import mbt_comm
from mbt_comm import Bunch, accordion_title_find, message_set, metys_confirm
from resources import Resources
class Model(Dictable):
__public__ = ["title", "resources"]
def __init__(self, title, resources=None, other=None):
self.title = title
self.parent = None
if resources is None:
self.resources = Resources()
else:
self.resources = resources
self.other = other
self.wid_delete_btn = widgets.Button(description='Delete', margin="8px")
self.wid_delete_btn._gem_ctx = self
def yes_cb(model):
parent = model.parent_get()
parent.model_del(model)
def no_cb(model):
return
def model_delete_cb(model_delete_cb):
metys_confirm("Delete '%s' model, confirm it ?" % self.title, yes_cb, no_cb, self)
return
self.wid_delete_btn.on_click(model_delete_cb)
wid_label = widgets.Label(value="Model:")
self.widget = widgets.VBox(children=[
self.resources.widget_get(), wid_label, self.wid_delete_btn])
def parent_set(self, parent):
self.parent = parent
def parent_get(self):
return self.parent
def widget_get(self):
return self.widget
def __getitem__(self, key):
id = self.resources.resource_find(key)
if id == -1:
raise KeyError
return self.resources.resource_get(id).value
def clear(self, key):
id = self.resources.resource_find(key)
if id == -1:
raise KeyError
return self.resources.resource_get(id).clear()
def keys(self):
return [x.key for x in self.resources.resources]
def objpath(self, objname, is_leaf=True):
pre = os.path.join(self.parent.parent.objpath(self.title, is_leaf=False))
if is_leaf:
return (mbt_comm.OQ_MBT_HOME,
os.path.join(pre, 'data', quote_plus(objname)))
else:
return (os.path.join(pre, quote_plus(objname)))
def close(self):
# FIXME
pass
class Models(Dictable):
__public__ = ["models", "current"]
def __init__(self, models=[], current=None):
self.wid_label = widgets.HTML(value="Models:", font_weight="bold")
# ATTENTION: buggy accordion implementation force us to destroy and recreate it
# for each modification (UGLY)!
self.wid_models_cont = None
self.wid_proxy = widgets.Proxy(self.wid_models_cont)
self.wid_mgmt = widgets.VBox(children=[])
self.models = models[:]
for mod in self.models:
mod.parent_set(self)
# 'current' is a model title
self.current = None
if current != None:
model_id = self.model_find(current)
if model_id > -1:
self.current = current
self.widget_update()
def models_add_cb(btn):
def model_add_cb(btn):
parent_ctx = btn._gem_ctx._parent_ctx
if accordion_title_find(parent_ctx.wid_models_cont,
btn._gem_ctx.wid_name.value) > -1:
message_set("model '%s' already exists" %
btn._gem_ctx.wid_name.value)
return False
model = Model(btn._gem_ctx.wid_name.value, Resources(), [])
parent_ctx.model_add(model)
btn._gem_ctx._parent_ctx.wid_mgmt.children = []
def model_close_cb(btn):
btn._gem_ctx.wid_mgmt.children = []
wid_title = widgets.HTML(value="New model")
wid_name = widgets.Text(description="Name: ")
wid_add_btn = widgets.Button(description='Add', margin="8px")
wid_add_btn._gem_ctx = Bunch(wid_name=wid_name, _parent_ctx=btn._gem_ctx)
wid_add_btn.on_click(model_add_cb)
wid_close_btn = widgets.Button(description='Close', margin="8px")
wid_close_btn._gem_ctx = btn._gem_ctx
wid_close_btn.on_click(model_close_cb)
wid_btnbox = widgets.HBox(children=[wid_add_btn, wid_close_btn])
wid_box = widgets.Box(children=[wid_title, wid_name, wid_btnbox],
border_style="solid", border_width="1px",
border_radius="8px", padding="8px",
width="400px")
btn._gem_ctx.wid_mgmt.children = [wid_box]
self.wid_add_btn = widgets.Button(description='Add model', margin="8px")
self.wid_add_btn._gem_ctx = self
self.wid_add_btn.on_click(models_add_cb)
self.widget = widgets.VBox(
children=[self.wid_label, self.wid_proxy,
self.wid_add_btn, self.wid_mgmt],
border_style="solid", border_width="1px", padding="8px",
border_radius="4px")
def widget_update(self):
wid_models_cont_old = self.wid_models_cont
children_new = [mod.widget_get() for mod in self.models]
wid_models_cont_new = widgets.Accordion(children=children_new, width=800)
for i, mod in enumerate(self.models):
wid_models_cont_new.set_title(i, mod.title)
model_id = -1
if self.current is not None:
model_id = self.model_find(self.current)
if model_id == -1:
self.current = None
wid_models_cont_new.selected_index = model_id
def selected_index_cb(msg):
self.current = self.model_get(msg['new']).title
wid_models_cont_new.observe(selected_index_cb, names=["selected_index"])
self.wid_proxy.child = wid_models_cont_new
self.wid_models_cont = wid_models_cont_new
if wid_models_cont_old is not None:
wid_models_cont_old.close()
def model_add(self, model):
self.models.append(model)
self.current = model.title
self.widget_update()
model.parent_set(self)
def model_del(self, model):
self.models.remove(model)
self.widget_update()
model.close()
del model
def model_find(self, title):
for i, mod in enumerate(self.models):
# print "[%s] [%s]" % (res.key_get(), name)
if mod.title == title:
return i
return -1
def model_get(self, id):
return self.models[id]
def parent_set(self, parent):
self.parent = parent
def widget_get(self):
return self.widget
def __getitem__(self, title):
mod = self.model_find(title)
if mod == -1:
raise KeyError
return self.model_get(mod)
def keys(self):
return [x.title for x in self.models]