def updateSessionVariable(var_name, node_path):
curSource = hou.sessionModuleSource()
lines = curSource.split("\n")
for i, line in enumerate(lines):
if line.split('=')[0].strip(' ') == var_name:
line = "%s = '%s'" % (var_name, node_path)
lines[i] = line
data = '\n'.join(lines)
# print data
hou.setSessionModuleSource(data)
def save_bookmarks_to_session(self, event_type, *args, **kwargs):
if event_type not in [hou.hipFileEventType.BeforeSave, hou.hipFileEventType.BeforeClear, "Widget Closed"]:
return
selection = range(self.tab_widget.count())
data = prepare_save_data(self.tab_widget, selection)
code = ("# HOUDINI BOOKMARKS START \n"
"def get_houdini_bookmarks_data(): \n"
" return "+str(data)+"\n"
"# HOUDINI BOOKMARS END \n")
old_data = hou.sessionModuleSource()
old_data = re.sub("# HOUDINI BOOKMARKS START.*# HOUDINI BOOKMARS END", "", old_data, flags=re.DOTALL)
if hasattr(hou.session, "get_houdini_bookmarks_data"):
del(hou.session.get_houdini_bookmarks_data)
hou.setSessionModuleSource(old_data + "\n" + code)
def deleteSessionVariable(var_name):
# print 'utils function : delete variable'
curSource = hou.sessionModuleSource()
lines = curSource.split("\n")
for i, line in enumerate(lines):
if line.split('=')[0].strip(' ') == var_name:
del lines[i]
break
data = '\n'.join(lines)
# print data
hou.setSessionModuleSource(data)
# then the value stays in memory, so explicitly delete it
cmdString = 'del hou.session.%s' %(var_name)
try:
exec(cmdString)
except:
print 'unable to delete variable "%s"from memory' % (var_name)
def add_watcher(selection, type_="parm"):
""" Create a file with the current parameter contents and
create a file watcher, if not already created and found in hou.Session,
add the file to the list of watched files.
Link the file created to a parameter where the tool has been executed from
and when the file changed, edit the parameter contents with text contents.
"""
file_path = get_file_name(selection, type_=type_)
if type_ == "parm":
# fetch parm content, either raw value or expression if any
try:
data = selection.expression()
except hou.OperationFailed:
data = str(selection.eval())
elif type_ == "python_node":
data = selection.type().definition().sections()["PythonCook"].contents(
)
elif "extra_section|" in type_:
sec_name = type_.split('|')[-1]
sec = selection.type().definition().sections().get(sec_name)
if not sec:
print("Error: No section {} found.".format(sec))
data = sec.contents()
elif type_ == "__temp__python_source_editor":
data = hou.sessionModuleSource()
with open(file_path, 'w') as f:
f.write(data)
vsc = get_external_editor()
if not vsc:
hou.ui.setStatusMessage("No external editor set",
severity=hou.severityType.Error)
return
p = QtCore.QProcess(parent=hou.ui.mainQtWindow())
p.start(vsc, [file_path])
watcher = get_file_watcher()
if not watcher:
watcher = QtCore.QFileSystemWatcher([file_path],
parent=hou.ui.mainQtWindow())
watcher.fileChanged.connect(filechanged)
hou.session.FILE_WATCHER = watcher
else:
if not file_path in watcher.files():
watcher.addPath(file_path)
parms_bindings = get_parm_bindings()
if not parms_bindings:
hou.session.PARMS_BINDINGS = {}
parms_bindings = hou.session.PARMS_BINDINGS
if not file_path in parms_bindings.keys():
parms_bindings[file_path] = selection
# add "on removed" callback to remove file from watcher
# when node is deleted
if type_ == "python_node" or "extra_section|" in type_:
selection.addEventCallback((hou.nodeEventType.BeingDeleted, ),
_node_deleted)
clean_files()