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Change to cache colors instead of metadata.

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This commit is contained in:
Charles Haley 2011-05-30 20:52:26 +01:00
parent cfae562f75
commit e21d45824e
1 changed files with 13 additions and 11 deletions
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24
src/calibre/gui2/library/models.py
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@ -7,6 +7,7 @@ __docformat__ = 'restructuredtext en'
import shutil, functools, re, os, traceback
from contextlib import closing
from collections import defaultdict
from PyQt4.Qt import (QAbstractTableModel, Qt, pyqtSignal, QIcon, QImage,
QModelIndex, QVariant, QDate, QColor)
@ -87,7 +88,7 @@ class BooksModel(QAbstractTableModel): # {{{
self.column_map = []
self.headers = {}
self.alignment_map = {}
self.mi_cache = {}
self.color_cache = defaultdict(dict)
self.buffer_size = buffer
self.metadata_backup = None
self.bool_yes_icon = QIcon(I('ok.png'))
@ -173,13 +174,13 @@ class BooksModel(QAbstractTableModel): # {{{
def refresh_ids(self, ids, current_row=-1):
self.mi_cache = {}
self.color_cache = defaultdict(dict)
rows = self.db.refresh_ids(ids)
if rows:
self.refresh_rows(rows, current_row=current_row)
def refresh_rows(self, rows, current_row=-1):
self.mi_cache = {}
self.color_cache = defaultdict(dict)
for row in rows:
if row == current_row:
self.new_bookdisplay_data.emit(
@ -209,7 +210,7 @@ class BooksModel(QAbstractTableModel): # {{{
return ret
def count_changed(self, *args):
self.mi_cache = {}
self.color_cache = defaultdict(dict)
self.count_changed_signal.emit(self.db.count())
def row_indices(self, index):
@ -341,7 +342,7 @@ class BooksModel(QAbstractTableModel): # {{{
self.resort(reset=reset)
def reset(self):
self.mi_cache = {}
self.color_cache = defaultdict(dict)
QAbstractTableModel.reset(self)
def resort(self, reset=True):
@ -727,18 +728,19 @@ class BooksModel(QAbstractTableModel): # {{{
key = self.column_map[col]
if key in self.column_color_map:
id_ = self.id(index)
if id_ in self.mi_cache:
mi = self.mi_cache[id_]
else:
mi = self.db.get_metadata(self.id(index), index_is_id=True)
self.mi_cache[id_] = mi
if id_ in self.color_cache:
if key in self.color_cache[id_]:
return self.color_cache[id_][key]
mi = self.db.get_metadata(self.id(index), index_is_id=True)
fmt = self.column_color_map[key]
try:
color = composite_formatter.safe_format(fmt, mi, '', mi)
if color in self.colors:
color = QColor(color)
if color.isValid():
return QVariant(color)
color = QVariant(color)
self.color_cache[id_][key] = color
return color
except:
return NONE
elif self.is_custom_column(key) and \