class PluginController:
def __init__(self, parent):
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'data_loaders')
self.parent = parent
self.plugin_handler.load_plugin('default')
def load_default(self):
try:
plugin_name = self.parent.config.get('data handling', 'data loader')
self.LoadPlugin(plugin_name)
except Exception, S:
print 'Could not locate the data loader parameter or the data loader. Error:'
print S.__str__()
print 'Proceeding with laoding the default data loader.'
self.LoadPlugin('default')
class PluginController:
def __init__(self, parent):
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'data_loaders')
self.parent = parent
self.plugin_handler.load_plugin('default')
def load_default(self):
try:
plugin_name = self.parent.config.get('data handling',
'data loader')
self.LoadPlugin(plugin_name)
except Exception, S:
print 'Could not locate the data loader parameter or the data loader. Error:'
print S.__str__()
print 'Proceeding with laoding the default data loader.'
self.LoadPlugin('default')
def __init__(self, parent, menu, config):
'''__init__(self, parent, menu) --> None
Insert menu items for controlling plugins in menu.
Parent is the main window.
'''
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'add_ons')
self.parent = parent
self.config = config
# make the menus
self.load_menu = wx.Menu()
menu.InsertMenu(0, -1,'Load', self.load_menu, 'Load a plugin')
self.unload_menu = wx.Menu()
menu.InsertMenu(1, -1,'Unload', self.unload_menu, 'Unload a plugin')
menu.Append(-1, 'Update module list')
self.LoadDefaultPlugins()
class PluginController:
def __init__(self, parent):
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'data_loaders')
self.parent = parent
self.plugin_handler.load_plugin('default')
def LoadPlugin(self, plugin):
'''LoadPlugin(self, plugin) --> None
Loads a data handler note that there is no UnLoad function
since only one DataHandler can be plugged in at a time.
'''
# Unload the plugins
names = self.plugin_handler.loaded_plugins.copy()
try:
[self.plugin_handler.unload_plugin(pl) for pl in names]
self.parent.SetStatusText('Unloaded data loader %s'%names.keys()[0])
except:
outp = StringIO.StringIO()
traceback.print_exc(200, outp)
tbtext = outp.getvalue()
outp.close()
ShowErrorDialog(self.parent, 'Can NOT unload plugin object'+ \
names.keys()[0] + '\nPython traceback below:\n\n' + tbtext)
try:
self.plugin_handler.load_plugin(plugin)
self.parent.SetStatusText('Loaded data loader: %s'%plugin)
except:
outp = StringIO.StringIO()
traceback.print_exc(200, outp)
tbtext = outp.getvalue()
outp.close()
ShowErrorDialog(self.parent, 'Can NOT load plugin ' + plugin\
+ '\nPython traceback below:\n\n' + tbtext)
def ShowDialog(self):
'''ShowDialog(self) --> None
Shows a dialog boc for the user to choose a data loader.
'''
cur_plugin = self.plugin_handler.loaded_plugins.keys()[0]
plugin_list = self.plugin_handler.get_possible_plugins()
dlg = PluginDialog(self.parent, plugin_list, cur_plugin,\
self.LoadPlugin)
dlg.ShowModal()
dlg.Destroy()
class PluginController:
''' A controller class to interact with the gui
so we can load and unload modules as well as
update the module list.
'''
def __init__(self, parent, menu, config):
'''__init__(self, parent, menu) --> None
Insert menu items for controlling plugins in menu.
Parent is the main window.
'''
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'add_ons')
self.parent = parent
self.config = config
# make the menus
self.load_menu = wx.Menu()
menu.InsertMenu(0, -1,'Load', self.load_menu, 'Load a plugin')
self.unload_menu = wx.Menu()
menu.InsertMenu(1, -1,'Unload', self.unload_menu, 'Unload a plugin')
menu.Append(-1, 'Update module list')
self.LoadDefaultPlugins()
#self.update_plugins()
def update_plugins(self):
'''update_modules(self) --> None
Updates the list of modules that can be loaded.
'''
# Remove all the items in load_menu
items = self.load_menu.GetMenuItems()
[self.load_menu.DeleteItem(item) for item in items]
# Get the new list of plugin modules
modlist = self.plugin_handler.get_plugins()
modlist.sort()
# Add new menu items
for mod in modlist:
menu = self.load_menu.Append(-1, mod)
self.parent.Bind(wx.EVT_MENU, self.LoadPlugin, menu)
self.update_config()
def RegisterPlugin(self, plugin):
''' RegisterPlugin(self, plugin) --> None
Adds a plugin to the unload list so that it can be removed later.
'''
menu = self.unload_menu.Append(-1, plugin)
self.parent.Bind(wx.EVT_MENU, self.UnLoadPlugin, menu)
self.update_plugins()
def update_config(self):
'''update_config(self) --> None
Updates the config object
'''
loaded_plugins = self.plugin_handler.get_loaded_plugins()
plugins_str = ';'.join(loaded_plugins)
self.config.set('plugins', 'loaded plugins', plugins_str)
def LoadDefaultPlugins(self):
'''LoadDefaultPlugins(self) --> None
Tries to load the default plugins from the config object
if they are not already loaded.
'''
plugin_str = self.config.get('plugins', 'loaded plugins')
#print' plugins:', plugin_str
# Check so we have any plugins to load else bail out
#print 'Plugin string:', plugin_str
if plugin_str == '':
self.update_plugins()
return
existing_plugins = self.plugin_handler.get_possible_plugins()
for plugin in plugin_str.split(';'):
# Check so the plugin is not loaded and exists
if not self.plugin_handler.is_loaded(plugin):
if plugin in existing_plugins:
try:
self.plugin_handler.load_plugin(plugin)
self.RegisterPlugin(plugin)
except:
outp = StringIO.StringIO()
traceback.print_exc(200, outp)
tbtext = outp.getvalue()
outp.close()
ShowErrorDialog(self.parent, 'Can NOT load plugin '\
+ plugin + '\nPython traceback below:\n\n' + tbtext)
self.RegisterPlugin(plugin)
else:
ShowInfoDialog(self.parent, 'Could not find plugin "%s"'\
'. Either there is an error in the config file'\
' or the plugin is not installed.'%(plugin))
self.update_plugins()
# Callbacks
def LoadPlugin(self, event):
'''OnLoadPlugin(self, event) --> None
Loads a plugin from a menu choice.
'''
# Get the name of the plugin
menuitem = self.load_menu.FindItemById(event.GetId())
plugin = menuitem.GetText()
try:
self.plugin_handler.load_plugin(plugin)
except:
outp = StringIO.StringIO()
traceback.print_exc(200, outp)
tbtext = outp.getvalue()
outp.close()
ShowErrorDialog(self.parent, 'Can NOT load plugin ' + plugin\
+ '\nPython traceback below:\n\n' + tbtext)
else:
self.RegisterPlugin(plugin)
def UnLoadPlugin(self, event):
'''UnLoadPlugin(self, event) --> None
UnLoads (removes) a plugin module.
'''
menuitem = self.unload_menu.FindItemById(event.GetId())
plugin = menuitem.GetText()
try:
self.plugin_handler.unload_plugin(plugin)
except Exception, e:
outp = StringIO.StringIO()
traceback.print_exc(200, outp)
tbtext = outp.getvalue()
outp.close()
ShowErrorDialog(self.parent, 'Can NOT unload plugin object'+ \
plugin + '\nPython traceback below:\n\n' + tbtext)
else:
def __init__(self, parent):
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'data_loaders')
self.parent = parent
self.plugin_handler.load_plugin('default')
def __init__(self, parent):
self.plugin_handler = PluginHandler(parent, __MODULE_DIR__ \
, 'data_loaders')
self.parent = parent
self.plugin_handler.load_plugin('default')
