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# -*- coding: utf-8 -*-
"""
$Id$
Copyright 2012 Lars Kruse <devel@sumpfralle.de>
This file is part of PyCAM.
PyCAM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PyCAM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PyCAM. If not, see <http://www.gnu.org/licenses/>.
"""
import StringIO
import csv
import gobject
# guppy will be imported later
#import guppy
import pycam.Plugins
import pycam.Utils.log
_log = pycam.Utils.log.get_logger()
class MemoryAnalyzer(pycam.Plugins.PluginBase):
UI_FILE = "memory_analyzer.ui"
DEPENDS = ["Clipboard"]
CATEGORIES = ["System"]
def setup(self):
if self.gui:
import gtk
self._gtk = gtk
# menu item and shortcut
self.toggle_action = self.gui.get_object("ToggleMemoryAnalyzerAction")
self._gtk_handlers = []
self._gtk_handlers.append((self.toggle_action, "toggled",
self.toggle_window))
self.register_gtk_accelerator("memory_analyzer", self.toggle_action,
None, "ToggleMemoryAnalyzerAction")
self.core.register_ui("view_menu", "ToggleMemoryAnalyzerAction",
self.toggle_action, 80)
# the window
self.window = self.gui.get_object("MemoryAnalyzerWindow")
self.window.set_default_size(500, 400)
hide_window = lambda *args: self.toggle_window(value=False)
self._gtk_handlers.extend([
(self.window, "delete-event", hide_window),
(self.window, "destroy", hide_window),
(self.gui.get_object("MemoryAnalyzerCloseButton"),
"clicked", hide_window),
(self.gui.get_object("MemoryAnalyzerCopyButton"),
"clicked", self.copy_to_clipboard),
(self.gui.get_object("MemoryAnalyzerRefreshButton"),
"clicked", self.refresh_memory_analyzer)])
self.model = self.gui.get_object("MemoryAnalyzerModel")
# window state
self._window_position = None
# check if "heapy" is available - this disables all widgets
try:
import guppy
except ImportError:
self._guppy = None
self.gui.get_object("MemoryAnalyzerDataBox").hide()
else:
self._guppy = guppy
self.gui.get_object("MemoryAnalyzerBrokenLabel").hide()
self.register_gtk_handlers(self._gtk_handlers)
return True
def teardown(self):
if self.gui:
self.window.hide()
self.core.unregister_ui("view_menu", self.toggle_action)
self.unregister_gtk_accelerator("memory_analyzer",
self.toggle_action)
self.core.unregister_ui("view_menu", self.toggle_action)
self.unregister_gtk_handlers(self._gtk_handlers)
def toggle_window(self, widget=None, value=None, action=None):
checkbox_state = self.toggle_action.get_active()
if value is None:
new_state = checkbox_state
elif action is None:
new_state = value
else:
new_state = action
if new_state:
if self._window_position:
self.window.move(*self._window_position)
self.refresh_memory_analyzer()
self.window.show()
else:
self._window_position = self.window.get_position()
self.window.hide()
self.toggle_action.set_active(new_state)
# don't destroy the window with a "destroy" event
return True
def refresh_memory_analyzer(self, widget=None):
self.model.clear()
self.gui.get_object("MemoryAnalyzerLoadingLabel").show()
for objname in ("MemoryAnalyzerRefreshButton",
"MemoryAnalyzerCopyButton"):
self.gui.get_object(objname).set_sensitive(False)
gobject.idle_add(self._refresh_data_in_background)
def _refresh_data_in_background(self):
if not self._guppy:
return
memory_state = self._guppy.hpy().heap()
for row in memory_state.stat.get_rows():
item = (row.name, row.count, row.size / 1024, row.size / row.count)
self.model.append(item)
for objname in ("MemoryAnalyzerRefreshButton",
"MemoryAnalyzerCopyButton"):
self.gui.get_object(objname).set_sensitive(True)
self.gui.get_object("MemoryAnalyzerRefreshButton").set_sensitive(True)
self.gui.get_object("MemoryAnalyzerLoadingLabel").hide()
def copy_to_clipboard(self, widget=None):
text_buffer = StringIO.StringIO()
writer = csv.writer(text_buffer)
writer.writerow(("Type", "Count", "Size (all) [kB]", "Average size [B]"))
for row in self.model:
writer.writerow(row)
self.core.get("clipboard-set")(text_buffer.getvalue())
text_buffer.close()