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https://github.com/kovidgoyal/calibre.git
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Tag editor: Use a proxy model for better filter performance
Also simplifies the code
This commit is contained in:
Kovid Goyal
parent
cab955630c
commit
6fae77e7f4
@ -1,13 +1,16 @@
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__license__ = 'GPL v3'
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__copyright__ = '2008, Kovid Goyal <kovid at kovidgoyal.net>'
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from qt.core import Qt, QDialog, QAbstractItemView, QApplication
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from qt.core import (
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QAbstractItemView, QApplication, QDialog, QSortFilterProxyModel,
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QStringListModel, Qt
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)
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from calibre.constants import islinux
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from calibre.gui2 import error_dialog, gprefs, question_dialog
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from calibre.gui2.dialogs.confirm_delete import confirm
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from calibre.gui2.dialogs.tag_editor_ui import Ui_TagEditor
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from calibre.gui2 import question_dialog, error_dialog, gprefs
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from calibre.constants import islinux
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from calibre.utils.icu import sort_key, primary_contains
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from calibre.utils.icu import sort_key
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class TagEditor(QDialog, Ui_TagEditor):
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@ -62,11 +65,13 @@ class TagEditor(QDialog, Ui_TagEditor):
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if tags:
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if not self.is_names:
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tags.sort(key=sort_key)
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for tag in tags:
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self.applied_tags.addItem(tag)
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else:
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tags = []
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self.applied_model = QStringListModel(tags)
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p = QSortFilterProxyModel()
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p.setFilterCaseSensitivity(Qt.CaseSensitivity.CaseInsensitive)
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p.setSourceModel(self.applied_model)
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self.applied_tags.setModel(p)
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if self.is_names:
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self.applied_tags.setDragDropMode(QAbstractItemView.DragDropMode.InternalMove)
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self.applied_tags.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
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@ -75,11 +80,12 @@ class TagEditor(QDialog, Ui_TagEditor):
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all_tags = [tag for tag in self.db.all_custom(label=key)]
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else:
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all_tags = [tag for tag in self.db.all_tags()]
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all_tags = sorted(set(all_tags), key=sort_key)
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q = set(tags)
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for tag in all_tags:
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if tag not in q:
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self.available_tags.addItem(tag)
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all_tags = sorted(set(all_tags) - set(tags), key=sort_key)
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self.all_tags_model = QStringListModel(all_tags)
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p = QSortFilterProxyModel()
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p.setFilterCaseSensitivity(Qt.CaseSensitivity.CaseInsensitive)
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p.setSourceModel(self.all_tags_model)
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self.available_tags.setModel(p)
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connect_lambda(self.apply_button.clicked, self, lambda self: self.apply_tags())
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connect_lambda(self.unapply_button.clicked, self, lambda self: self.unapply_tags())
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@ -98,10 +104,10 @@ class TagEditor(QDialog, Ui_TagEditor):
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getattr(self, gprefs.get('tag_editor_last_filter', 'add_tag_input')).setFocus()
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if islinux:
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self.available_tags.itemDoubleClicked.connect(self.apply_tags)
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self.available_tags.doubleClicked.connect(self.apply_tags)
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else:
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self.available_tags.itemActivated.connect(self.apply_tags)
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self.applied_tags.itemActivated.connect(self.unapply_tags)
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self.available_tags.activated.connect(self.apply_tags)
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self.applied_tags.activated.connect(self.unapply_tags)
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geom = gprefs.get('tag_editor_geometry', None)
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if geom is not None:
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@ -110,10 +116,11 @@ class TagEditor(QDialog, Ui_TagEditor):
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def edit_box_changed(self, which):
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gprefs['tag_editor_last_filter'] = which
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def delete_tags(self, item=None):
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def delete_tags(self):
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confirms, deletes = [], []
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items = self.available_tags.selectedItems() if item is None else [item]
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if not items:
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row_indices = list(self.available_tags.selectionModel().selectedRows())
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if not row_indices:
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error_dialog(self, 'No tags selected', 'You must select at least one tag from the list of Available tags.').exec()
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return
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if not confirm(
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@ -121,93 +128,66 @@ class TagEditor(QDialog, Ui_TagEditor):
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'tag_editor_delete'):
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return
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pos = self.available_tags.verticalScrollBar().value()
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for item in items:
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used = self.db.is_tag_used(str(item.text())) \
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for ri in row_indices:
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tag = ri.data()
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used = self.db.is_tag_used(tag) \
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if self.key is None else \
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self.db.is_item_used_in_multiple(str(item.text()), label=self.key)
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self.db.is_item_used_in_multiple(tag, label=self.key)
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if used:
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confirms.append(item)
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confirms.append(ri)
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else:
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deletes.append(item)
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deletes.append(ri)
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if confirms:
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ct = ', '.join([str(item.text()) for item in confirms])
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ct = ', '.join(item.data() for item in confirms)
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if question_dialog(self, _('Are your sure?'),
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'<p>'+_('The following tags are used by one or more books. '
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'Are you certain you want to delete them?')+'<br>'+ct):
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deletes += confirms
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for item in deletes:
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for item in sorted(deletes, key=lambda r: r.row(), reverse=True):
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tag = item.data()
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if self.key is None:
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self.db.delete_tag(str(item.text()))
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self.db.delete_tag(tag)
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else:
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bks = self.db.delete_item_from_multiple(str(item.text()),
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label=self.key)
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bks = self.db.delete_item_from_multiple(tag, label=self.key)
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self.db.refresh_ids(bks)
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self.available_tags.takeItem(self.available_tags.row(item))
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self.available_tags.model().removeRows(item.row(), 1)
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self.available_tags.verticalScrollBar().setValue(pos)
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def apply_tags(self, item=None):
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items = self.available_tags.selectedItems() if item is None else [item]
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rows = [self.available_tags.row(i) for i in items]
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if not rows:
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row_indices = list(self.available_tags.selectionModel().selectedRows())
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row_indices.sort(key=lambda r: r.row(), reverse=True)
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if not row_indices:
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text = self.available_filter_input.text()
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if text and text.strip():
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self.add_tag_input.setText(text)
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self.add_tag_input.setFocus(Qt.FocusReason.OtherFocusReason)
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return
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row = max(rows)
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pos = self.available_tags.verticalScrollBar().value()
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tags = self._get_applied_tags_box_contents()
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for item in items:
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tag = str(item.text())
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for item in row_indices:
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tag = item.data()
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tags.append(tag)
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self.available_tags.takeItem(self.available_tags.row(item))
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self.available_tags.model().removeRows(item.row(), 1)
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self.available_tags.verticalScrollBar().setValue(pos)
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if not self.is_names:
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tags.sort(key=sort_key)
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self.applied_tags.clear()
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for tag in tags:
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self.applied_tags.addItem(tag)
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if row >= self.available_tags.count():
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row = self.available_tags.count() - 1
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if row > 2:
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item = self.available_tags.item(row)
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self.available_tags.scrollToItem(item)
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# use the filter again when the applied tags were changed
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self.filter_tags(self.applied_filter_input.text(), which='applied_tags')
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self.applied_model.setStringList(tags)
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def _get_applied_tags_box_contents(self):
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tags = []
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for i in range(0, self.applied_tags.count()):
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tags.append(str(self.applied_tags.item(i).text()))
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return tags
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return list(self.applied_model.stringList())
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def unapply_tags(self, item=None):
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tags = self._get_applied_tags_box_contents()
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items = self.applied_tags.selectedItems() if item is None else [item]
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for item in items:
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tag = str(item.text())
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tags.remove(tag)
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self.available_tags.addItem(tag)
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row_indices = list(self.applied_tags.selectionModel().selectedRows())
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tags = [r.data() for r in row_indices]
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row_indices.sort(key=lambda r: r.row(), reverse=True)
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for item in row_indices:
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self.applied_model.removeRows(item.row(), 1)
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if not self.is_names:
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tags.sort(key=sort_key)
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self.applied_tags.clear()
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for tag in tags:
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self.applied_tags.addItem(tag)
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items = [str(self.available_tags.item(x).text()) for x in
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range(self.available_tags.count())]
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items.sort(key=sort_key)
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self.available_tags.clear()
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for item in items:
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self.available_tags.addItem(item)
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# use the filter again when the applied tags were changed
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self.filter_tags(self.applied_filter_input.text(), which='applied_tags')
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self.filter_tags(self.available_filter_input.text())
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all_tags = self.all_tags_model.stringList() + tags
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all_tags.sort(key=sort_key)
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self.all_tags_model.setStringList(all_tags)
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def add_tag(self):
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tags = str(self.add_tag_input.text()).split(self.sep)
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@ -216,28 +196,20 @@ class TagEditor(QDialog, Ui_TagEditor):
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tag = tag.strip()
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if not tag:
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continue
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for item in self.available_tags.findItems(tag, Qt.MatchFlag.MatchFixedString):
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self.available_tags.takeItem(self.available_tags.row(item))
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for index in self.all_tags_model.match(self.all_tags_model.index(0), Qt.ItemDataRole.DisplayRole, tag, -1,
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Qt.MatchFlag.MatchFixedString | Qt.MatchFlag.MatchCaseSensitive | Qt.MatchFlag.MatchWrap):
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self.all_tags_model.removeRow(index.row())
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if tag not in tags_in_box:
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tags_in_box.append(tag)
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if not self.is_names:
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tags_in_box.sort(key=sort_key)
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self.applied_tags.clear()
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for tag in tags_in_box:
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self.applied_tags.addItem(tag)
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self.applied_model.setStringList(tags_in_box)
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self.add_tag_input.setText('')
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# use the filter again when the applied tags were changed
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self.filter_tags(self.applied_filter_input.text(), which='applied_tags')
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# filter tags
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def filter_tags(self, filter_value, which='available_tags'):
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collection = getattr(self, which)
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q = icu_lower(str(filter_value))
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for i in range(collection.count()): # on every available tag
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item = collection.item(i)
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item.setHidden(bool(q and not primary_contains(q, str(item.text()))))
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collection.model().setFilterFixedString(filter_value or '')
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def accept(self):
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self.tags = self._get_applied_tags_box_contents()
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@ -258,5 +230,6 @@ if __name__ == '__main__':
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db = db()
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app = Application([])
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d = TagEditor(None, db, current_tags='a b c'.split())
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if d.exec() == QDialog.DialogCode.Accepted:
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print(d.tags)
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@ -94,7 +94,7 @@
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</widget>
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</item>
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<item row="2" column="1">
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<widget class="QListWidget" name="available_tags">
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<widget class="QListView" name="available_tags">
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<property name="alternatingRowColors">
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<bool>true</bool>
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</property>
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@ -220,7 +220,7 @@
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</widget>
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</item>
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<item row="2" column="3">
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<widget class="QListWidget" name="applied_tags">
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<widget class="QListView" name="applied_tags">
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<property name="alternatingRowColors">
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<bool>true</bool>
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</property>
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