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Added config value interface.treemodel-cache-size to control size of cache

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Default size set to 1k for paths and other items.
This commit is contained in:
Doug Blank 2015-08-17 08:02:53 -04:00
parent de61d7158b
commit 269a1ab6f5
2 changed files with 11 additions and 2 deletions
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1
gramps/gen/config.py
View File

@ -271,6 +271,7 @@ register('interface.url-width', 600)
register('interface.view', True) register('interface.view', True)
register('interface.width', 775) register('interface.width', 775)
register('interface.surname-box-height', 150) register('interface.surname-box-height', 150)
register('interface.treemodel-cache-size', 1000)
register('paths.recent-export-dir', '') register('paths.recent-export-dir', '')
register('paths.recent-file', '') register('paths.recent-file', '')

12
gramps/gui/views/treemodels/basemodel.py
View File

@ -26,11 +26,12 @@
# #
#------------------------------------------------------------------------- #-------------------------------------------------------------------------
from .lru import LRU from .lru import LRU
from gramps.gen.config import config
class BaseModel(object): class BaseModel(object):
# LRU cache size # LRU cache size
_CACHE_SIZE = 10000 # 250 _CACHE_SIZE = config.get('interface.treemodel-cache-size')
def __init__(self): def __init__(self):
self.lru_data = LRU(BaseModel._CACHE_SIZE) self.lru_data = LRU(BaseModel._CACHE_SIZE)
@ -38,13 +39,15 @@ class BaseModel(object):
def destroy(self): def destroy(self):
""" """
Destroy the items in memory.
""" """
self.lru_data = None self.lru_data = None
self.lru_path = None self.lru_path = None
def clear_cache(self, handle=None): def clear_cache(self, handle=None):
""" """
Clear the LRU cache. Clear the LRU cache. Always clear lru_path, because paths may have
changed.
""" """
if handle: if handle:
if handle in self.lru_data: if handle in self.lru_data:
@ -56,6 +59,8 @@ class BaseModel(object):
def get_cached_value(self, handle, col): def get_cached_value(self, handle, col):
""" """
Get the value of a "col". col may be a number (position in a model)
or a name (special value used by view).
""" """
if handle in self.lru_data and col in self.lru_data[handle]: if handle in self.lru_data and col in self.lru_data[handle]:
return (True, self.lru_data[handle][col]) return (True, self.lru_data[handle][col])
@ -63,6 +68,7 @@ class BaseModel(object):
def set_cached_value(self, handle, col, data): def set_cached_value(self, handle, col, data):
""" """
Set the data associated with handle + col.
""" """
if not self._in_build: if not self._in_build:
if handle not in self.lru_data: if handle not in self.lru_data:
@ -72,6 +78,7 @@ class BaseModel(object):
## Cached Path's for TreeView: ## Cached Path's for TreeView:
def get_cached_path(self, handle): def get_cached_path(self, handle):
""" """
Saves the Gtk iter path.
""" """
if handle in self.lru_path: if handle in self.lru_path:
return (True, self.lru_path[handle]) return (True, self.lru_path[handle])
@ -79,6 +86,7 @@ class BaseModel(object):
def set_cached_path(self, handle, path): def set_cached_path(self, handle, path):
""" """
Set the Gtk iter path value.
""" """
if not self._in_build: if not self._in_build:
self.lru_path[handle] = path self.lru_path[handle] = path