From f2fae35eb2c35c811eec9d45a3f4bff6fda0a1ff Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 29 May 2009 11:06:48 -0700
Subject: [PATCH] Fix bug preventing the re-enabling of disabled plugins

---
 src/calibre/gui2/dialogs/config.py | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/calibre/gui2/dialogs/config.py b/src/calibre/gui2/dialogs/config.py
index 831d44251e..225a3b3ed7 100644
--- a/src/calibre/gui2/dialogs/config.py
+++ b/src/calibre/gui2/dialogs/config.py
@@ -6,7 +6,7 @@ from binascii import hexlify, unhexlify
 from PyQt4.Qt import    QDialog, QMessageBox, QListWidgetItem, QIcon, \
                         QDesktopServices, QVBoxLayout, QLabel, QPlainTextEdit, \
                         QStringListModel, QAbstractItemModel, QFont, \
-                        SIGNAL, QTimer, Qt, QSize, QVariant, QUrl, \
+                        SIGNAL, QTimer, Qt, QSize, QVariant, QUrl, QBrush, \
                         QModelIndex, QInputDialog, QAbstractTableModel
 
 from calibre.constants import islinux, iswindows
@@ -30,6 +30,9 @@ class PluginModel(QAbstractItemModel):
     def __init__(self, *args):
         QAbstractItemModel.__init__(self, *args)
         self.icon = QVariant(QIcon(':/images/plugins.svg'))
+        p = QIcon(self.icon).pixmap(32, 32, QIcon.Disabled, QIcon.On)
+        self.disabled_icon = QVariant(QIcon(p))
+        self._p = p
         self.populate()
 
     def populate(self):
@@ -89,9 +92,7 @@ class PluginModel(QAbstractItemModel):
             return 0
         if index.internalId() == -1:
             return Qt.ItemIsEnabled
-        flags = Qt.ItemIsSelectable
-        if not is_disabled(self.data(index, Qt.UserRole)):
-            flags |= Qt.ItemIsEnabled
+        flags = Qt.ItemIsSelectable | Qt.ItemIsEnabled
         return flags
 
     def data(self, index, role):
@@ -112,7 +113,9 @@ class PluginModel(QAbstractItemModel):
                     ans += '\nCustomization: '+c
                 return QVariant(ans)
             if role == Qt.DecorationRole:
-                return self.icon
+                return self.disabled_icon if is_disabled(plugin) else self.icon
+            if role == Qt.ForegroundRole and is_disabled(plugin):
+                return QVariant(QBrush(Qt.gray))
             if role == Qt.UserRole:
                 return plugin
         return NONE