class HistoryDemo(HasTraits):
name = Str()
file = File()
directory = Directory()
view = View(
Item('name',
id='name',
editor=HistoryEditor(entries=5)
),
Item('file',
id='file1',
editor=FileEditor(entries=10)
),
Item('file',
id='file2',
editor=FileEditor(entries=10,
filter=['All files (*.*)|*.*',
'Python files (*.py)|*.py'])
),
Item('directory',
id='directory',
editor=DirectoryEditor(entries=10)
),
title='History Editor Demo',
id='enthought.test.history_demo.HistoryDemo',
width=0.33,
resizable=True
)
def open_file_view(self):
item = Item('file_name',
id='file_tree',
style='custom',
show_label=False,
width=0.5,
editor=DirectoryEditor(
filter=self.filter,
allow_dir=True,
reload_name='reload',
dclick_name='dclick',
))
width = height = 0.20
if len(self.extensions) > 0:
raise Exception('extensions are not supported')
return View(VGroup(
VGroup(item),
HGroup(
Item('create',
id='create',
show_label=False,
style='custom',
defined_when='is_save_file',
enabled_when='can_create_dir',
tooltip='Create a new directory'),
Item('file_name',
id='history',
editor=HistoryEditor(entries=self.entries, auto_set=True),
springy=True),
Item('ok',
id='ok',
show_label=False,
enabled_when='is_valid_file'),
Item('cancel', show_label=False))),
title=self.title,
id=self.id,
kind='livemodal',
width=width,
height=height,
close_result=False,
resizable=True)
class LiveSearch(HasTraits):
# The currenty root directory being searched:
root = Directory(getcwd(), entries=10)
# Should sub directories be included in the search:
recursive = Bool(True)
# The file types to include in the search:
file_type = Enum('Python', 'C', 'C++', 'Java', 'Ruby')
# The current search string:
search = Str()
# Is the search case sensitive?
case_sensitive = Bool(False)
# The live search table filter:
filter = Property # Instance( TableFilter )
# The current list of source files being searched:
source_files = Property # List( SourceFile )
# The currently selected source file:
selected = Any # Instance( SourceFile )
# The contents of the currently selected source file:
selected_contents = Property # List( Str )
# The currently selected match:
selected_match = Int()
# The text line corresponding to the selected match:
selected_line = Property # Int
# The full name of the currently selected source file:
selected_full_name = Property # File
# The list of marked lines for the currently selected file:
mark_lines = Property # List( Int )
# Summary of current number of files and matches:
summary = Property # Str
#-- Traits UI Views ------------------------------------------------------
view = View(
VGroup(
HGroup(
Item('root',
id='root',
label='Path',
width=0.5
),
Item('recursive'),
Item('file_type', label='Type'),
Item('search',
id='search',
width=0.5,
editor=HistoryEditor(auto_set=True)
),
Item('case_sensitive')
),
VSplit(
VGroup(
Item('summary',
editor=TitleEditor()
),
Item('source_files',
id='source_files',
editor=table_editor
),
dock='horizontal',
show_labels=False
),
VGroup(
HGroup(
Item('selected_full_name',
editor=TitleEditor(),
springy=True
),
Item('selected_full_name',
editor=DNDEditor(),
tooltip='Drag this file'
),
show_labels=False
),
Item('selected_contents',
style='readonly',
editor=CodeEditor(mark_lines='mark_lines',
line='selected_line',
selected_line='selected_line')
),
dock='horizontal',
show_labels=False
),
id='splitter'
)
),
title='Live File Search',
id='enthought.examples.demo.Advanced.'
'Table_editor_with_live_search_and_cell_editor.LiveSearch',
width=0.75,
height=0.67,
resizable=True
)
#-- Property Implementations ---------------------------------------------
@property_depends_on('search, case_sensitive')
def _get_filter(self):
if len(self.search) == 0:
return lambda x: True
return lambda x: len(x.matches) > 0
@property_depends_on('root, recursive, file_type')
def _get_source_files(self):
root = self.root
if root == '':
root = getcwd()
file_types = FileTypes[self.file_type]
if self.recursive:
result = []
for dir_path, dir_names, file_names in walk(root):
for file_name in file_names:
if splitext(file_name)[1] in file_types:
result.append(SourceFile(
live_search=self,
full_name=join(dir_path, file_name)))
return result
return [SourceFile(live_search=self,
full_name=join(root, file_name))
for file_name in listdir(root)
if splitext(file_name)[1] in file_types]
@property_depends_on('selected')
def _get_selected_contents(self):
if self.selected is None:
return ''
return ''.join(self.selected.contents)
@property_depends_on('selected')
def _get_mark_lines(self):
if self.selected is None:
return []
return [int(match.split(':', 1)[0])
for match in self.selected.matches]
@property_depends_on('selected, selected_match')
def _get_selected_line(self):
selected = self.selected
if (selected is None) or (len(selected.matches) == 0):
return 1
return int(selected.matches[self.selected_match - 1
].split(':', 1)[0])
@property_depends_on('selected')
def _get_selected_full_name(self):
if self.selected is None:
return ''
return self.selected.full_name
@property_depends_on('source_files, search, case_sensitive')
def _get_summary(self):
source_files = self.source_files
search = self.search
if search == '':
return 'A total of %d files.' % len(source_files)
files = 0
matches = 0
for source_file in source_files:
n = len(source_file.matches)
if n > 0:
files += 1
matches += n
return 'A total of %d files with %d files containing %d matches.' % (
len(source_files), files, matches)
#-- Traits Event Handlers ------------------------------------------------
def _selected_changed(self):
self.selected_match = 1
def _source_files_changed(self):
if len(self.source_files) > 0:
self.selected = self.source_files[0]
else:
self.selected = None
def open_file_view(self):
""" Returns the file dialog view to use.
"""
# Set up the default file dialog view and size information:
item = Item('file_name',
id='file_tree',
style='custom',
show_label=False,
width=0.5,
editor=FileEditor(filter=self.filter,
allow_dir=True,
reload_name='reload',
dclick_name='dclick'))
width = height = 0.20
# Check to see if we have any extensions being added:
if len(self.extensions) > 0:
# fixme: We should use the actual values of the view's Width and
# height traits here to adjust the overall width and height...
width *= 2.0
# Assume we can used a fixed width Group:
klass = HGroup
# Set up to build a list of view Item objects:
items = []
# Add each extension to the dialog:
for i, extension in enumerate(self.extensions):
# Save the extension in a new trait (for use by the View):
name = 'extension_%d' % i
setattr(self, name, extension)
extension_view = extension
# Sync up the 'file_name' trait with the extension:
self.sync_trait('file_name', extension, mutual=True)
# Check to see if it also defines the optional IFileDialogView
# interface, and if not, use the default view information:
if not extension.has_traits_interface(IFileDialogView):
extension_view = default_view
# Get the view that the extension wants to use:
view = extension.trait_view(extension_view.view)
# Determine if we should use a splitter for the dialog:
if not extension_view.is_fixed:
klass = HSplit
# Add the extension as a new view item:
items.append(
Item(name,
label=user_name_for(extension.__class__.__name__),
show_label=False,
style='custom',
width=0.5,
height=0.5,
dock='horizontal',
resizable=True,
editor=InstanceEditor(view=view, id=name)))
# Finally, combine the normal view element with the extensions:
item = klass(item,
VSplit(id='splitter2', springy=True, *items),
id='splitter')
# Return the resulting view:
return View(VGroup(
VGroup(item),
HGroup(
Item('create',
id='create',
show_label=False,
style='custom',
defined_when='is_save_file',
enabled_when='can_create_dir',
tooltip='Create a new directory'),
Item('file_name',
id='history',
editor=HistoryEditor(entries=self.entries, auto_set=True),
springy=True),
Item('ok',
id='ok',
show_label=False,
enabled_when='is_valid_file'),
Item('cancel', show_label=False))),
title=self.title,
id=self.id,
kind='livemodal',
width=width,
height=height,
close_result=False,
resizable=True)
class HB_HeapBrowser ( HasPrivateTraits ):
# The name of the plugin:
name = Str( 'Heap Browser' )
# The current heap statistics table entries:
current_counts = List( HB_ClassCount )
# The list of currently selected counts:
selected_counts = List( HB_ClassCount )
# The sting that all class names must contain:
filter_name = Str( event = 'heap_updated' )
# The threshold for the number of instances to display:
filter_instances = Int( event = 'heap_updated' )
# The threshold for the amount of change to display:
filter_change = Int( event = 'heap_updated' )
# Number of items in the current_counts list:
current_classes = Property( depends_on = 'current_counts' )
# Total number of instances in the current_counts list:
current_instances = Property( depends_on = 'current_counts' )
# Total change in the current_counts list:
current_change = Property( depends_on = 'current_counts' )
# Indicates whether or not the selection set is empty or not:
has_counts = Property
# The set of all current active object ids:
current_ids = Any( set() )
# Current heap statistics:
current_heap = Any( {} )
# Previous heap statistics:
previous_heap = Any( {} )
# Event fired when anything changes that affects the heap statistics view:
heap_updated = Event
# The list of object classes currently being ignored:
ignored_classes = Any( set() )
# The list of object classes currently being shown:
shown_classes = Any( set() )
# Refresh button:
refresh = Button( 'Refresh' )
# Baseline button (to create a new 'baseline' set):
baseline = Button( 'Baseline' )
# Hide all selected items button:
hide_selected = Button( 'Hide Selected' )
# Show only the selected items button:
show_selected = Button( 'Show Selected' )
# Show all items button:
show_all = Button( 'Show All' )
# Show the details of the current selected items button:
show_details = Button( 'Show Details' )
# Event fired when a 'counts' item is double-clicked:
counts_dclick = Event
#-- View 2 Traits ----------------------------------------------------------
# The list of objects which the user has requested detailed information for:
details = List( HB_Detail )
#-- View 3 Traits ----------------------------------------------------------
# The list of object referrer trees:
referrers = List( HB_Referrers )
#-- View 4 Traits ----------------------------------------------------------
# The list of object baselines:
baselines = List( HB_Baseline )
#-- Traits View Definitions ------------------------------------------------
heap_stats_view = View(
VSplit(
VGroup(
HGroup(
Item( 'filter_name',
id = 'filter_name',
label = 'Name',
width = -90,
editor = HistoryEditor( auto_set = True ),
),
'_',
Item( 'filter_instances',
label = 'Min Instances',
width = -36
),
'_',
Item( 'filter_change',
label = 'Min Change',
width = -36
),
'_',
spring,
'_',
Item( 'current_classes',
label = 'Classes',
style = 'readonly',
format_func = commatize,
width = -35
),
'_',
Item( 'current_instances',
label = 'Instances',
style = 'readonly',
format_func = commatize,
width = -50
),
'_',
Item( 'current_change',
label = 'Change',
style = 'readonly',
format_func = commatize,
width = -50
),
),
Item( 'current_counts',
id = 'current_counts',
editor = counts_table_editor
),
'_',
HGroup(
Item( 'refresh',
tooltip = 'Refresh the heap statistics' ),
Item( 'baseline',
tooltip = 'Create a new baseline set' ),
spring,
Item( 'hide_selected',
tooltip = 'Remove all selected items from the view',
enabled_when = 'has_counts' ),
Item( 'show_selected',
tooltip = 'Show only the selected items in the view',
enabled_when = 'has_counts' ),
Item( 'show_all',
tooltip = 'Show all items again',
enabled_when = '(len( ignored_classes ) > 0) '
'or (len( shown_classes ) > 0)' ),
'_',
Item( 'show_details',
tooltip = 'Show the instances of the selected '
'classes',
enabled_when = 'has_counts' ),
show_labels = False,
),
label = 'Heap',
show_labels = False,
dock = 'tab'
),
Item( 'details',
id = 'details',
style = 'custom',
dock = 'tab',
editor = ListEditor( use_notebook = True,
deletable = True,
dock_style = 'tab',
export = 'DockWindowShell',
page_name = '.short_name' )
),
Item( 'referrers',
id = 'referrers',
style = 'custom',
dock = 'tab',
editor = ListEditor( use_notebook = True,
deletable = True,
dock_style = 'tab',
export = 'DockWindowShell',
page_name = '.name' )
),
Item( 'baselines',
id = 'baselines',
style = 'custom',
dock = 'tab',
editor = ListEditor( use_notebook = True,
deletable = True,
dock_style = 'tab',
export = 'DockWindowShell',
page_name = 'Baseline' )
),
id = 'splitter',
show_labels = False
),
title = 'Heap Browser',
id = 'etsdevtools.developer.tools.heap_browser.HB_HeapBrowser',
width = 0.5,
height = 0.75,
resizable = True,
key_bindings = heap_browser_key_bindings
)
#-- Property Implementations -----------------------------------------------
def _get_has_counts ( self ):
return (len( self.selected_counts ) > 0)
def _get_current_classes ( self ):
return len( self.current_counts )
@cached_property
def _get_current_instances ( self ):
return reduce( lambda l, r: l + r.instances, self.current_counts, 0 )
@cached_property
def _get_current_change ( self ):
return reduce( lambda l, r: l + r.change, self.current_counts, 0 )
#-- Event Handlers ---------------------------------------------------------
def _heap_updated_changed ( self ):
""" Handles the 'heap_updated' event being fired by rebuilding the
heap class counts list.
"""
ignored = ignored_classes
shown = self.shown_classes
no_show = (len( shown ) == 0)
if no_show:
ignored = ignored_classes.union( self.ignored_classes )
old = self.previous_heap
filter_name = self.filter_name.lower()
filter_instances = self.filter_instances
filter_change = self.filter_change
counts = [ HB_ClassCount( name = name,
instances = instances,
change = instances - old.get( name, 0 ) )
for name, instances in self.current_heap.iteritems()
if (name not in ignored) and
(no_show or (name in shown)) and
(name.lower().find( filter_name ) >= 0) and
(instances >= filter_instances) and
(abs( instances - old.get( name, 0 ) ) >= filter_change)
]
counts.sort( lambda l, r: cmp( l.lower_name, r.lower_name ) )
self.current_counts = counts
def _refresh_changed ( self, ignore = None ):
""" Handles the 'Refresh' button being clicked.
"""
self.update()
def _baseline_changed ( self, ignore = None ):
""" Handles the 'Baseline' button being clicked.
"""
self.baselines.append( self._create_baseline() )
def _hide_selected_changed ( self, info = None ):
""" Handles the 'Hide Selected' button being clicked.
"""
self.ignored_classes.update(
set( [ item.name for item in self.selected_counts ] )
)
self.shown_classes.clear()
del self.selected_counts[:]
self.heap_updated = True
def _show_selected_changed ( self, info = None ):
""" Handles the 'Show Selected' button being clicked.
"""
self.shown_classes = set(
set( [ item.name for item in self.selected_counts ] )
)
self.ignored_classes.clear()
del self.selected_counts[:]
self.heap_updated = True
def _show_all_changed ( self, info = None ):
""" Handles the 'Show All' button being clicked.
"""
self.ignored_classes.clear()
self.shown_classes.clear()
del self.selected_counts[:]
self.heap_updated = True
def _show_details_changed ( self, ignore = True ):
""" Handles the 'Show Details' button being clicked.
"""
self.details.extend( [ HB_Detail( name = item.name, owner = self )
for item in self.selected_counts ] )
def _counts_dclick_changed ( self, event ):
""" Handles the user double-clicking a 'counts' table entry in order
to show its details.
"""
item, column = event
self.details.append( HB_Detail( name = item.name, owner = self ) )
def _set_filter_change_1 ( self, info = None ):
""" Sets the filter change value to 1.
"""
self.filter_change = 1
def _clear_filter ( self, info = None ):
""" Clears all current filter variable settings back to their defaults.
"""
self.filter_change = filter_instances = 0
self.filter_name = ''
def _select_all ( self, info = None ):
""" Selects all current displayed items.
"""
self.selected_counts = self.current_counts
def _unselect_all ( self, info = None ):
""" Unselects all currently selected items.
"""
self.selected_counts = []
#-- Public Methods ---------------------------------------------------------
def update ( self ):
""" Updates the heap statistics.
"""
self.previous_heap = old = self.current_heap
self.current_heap = new = {}
self.current_ids = ids = set()
gc.collect()
for object in gc.get_objects():
name = object_name( object )
if name not in ignored_classes:
new[ name ] = new.setdefault( name, 0 ) + 1
ids.add( id( object ) )
self.heap_updated = True
# Indicate that each class detail should update its instance
# information:
for detail in self.details:
detail.update = True
# Indicate that each referrer should update its instance information:
for referrer in self.referrers:
referrer.root.update = True
# Indicate that each baseline view should update its contents:
for baseline in self.baselines:
baseline.update = ids
#-- Private Methods --------------------------------------------------------
def _create_baseline ( self ):
""" Creates a new baseline object.
"""
current_ids = self.current_ids
object_ids = {}
gc.collect()
for object in gc.get_objects():
if id( object ) not in current_ids:
name = object_name( object )
if name not in ignored_classes:
object_ids[ id( object ) ] = name
return HB_Baseline( object_ids = object_ids, owner = self )
