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Skeleton for D&D in Tag Browser

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Kovid Goyal 2011-02-23 07:49:48 -07:00
parent 4f81c2e0f9
commit a64f4aeb0d
1 changed files with 30 additions and 11 deletions
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41
src/calibre/gui2/tag_view.py
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@ -7,7 +7,7 @@ __docformat__ = 'restructuredtext en'
Browsing book collection by tags.
'''
import traceback, copy
import traceback, copy, cPickle
from itertools import izip
from functools import partial
@ -16,7 +16,7 @@ from PyQt4.Qt import Qt, QTreeView, QApplication, pyqtSignal, QFont, QSize, \
QIcon, QPoint, QVBoxLayout, QHBoxLayout, QComboBox, QTimer,\
QAbstractItemModel, QVariant, QModelIndex, QMenu, QFrame,\
QPushButton, QWidget, QItemDelegate, QString, QLabel, \
QShortcut, QKeySequence, SIGNAL
QShortcut, QKeySequence, SIGNAL, QMimeData
from calibre.ebooks.metadata import title_sort
from calibre.gui2 import config, NONE, gprefs
@ -95,7 +95,8 @@ class TagsView(QTreeView): # {{{
self.setItemDelegate(TagDelegate(self))
self.made_connections = False
self.setAcceptDrops(True)
self.setDragDropMode(self.DropOnly)
self.setDragEnabled(True)
self.setDragDropMode(self.DragDrop)
self.setDropIndicatorShown(True)
self.setAutoExpandDelay(500)
self.pane_is_visible = False
@ -406,12 +407,13 @@ class TagsView(QTreeView): # {{{
fm_dest = self.db.metadata_for_field(item.category_key)
if fm_dest['kind'] == 'user':
md = event.mimeData()
fm_src = self.db.metadata_for_field(md.column_name)
if md.column_name in ['authors', 'publisher', 'series'] or \
(fm_src['is_custom'] and
fm_src['datatype'] in ['series', 'text'] and
not fm_src['is_multiple']):
self.setDropIndicatorShown(True)
if hasattr(md, 'column_name'):
fm_src = self.db.metadata_for_field(md.column_name)
if md.column_name in ['authors', 'publisher', 'series'] or \
(fm_src['is_custom'] and
fm_src['datatype'] in ['series', 'text'] and
not fm_src['is_multiple']):
self.setDropIndicatorShown(True)
def clear(self):
if self.model():
@ -664,10 +666,26 @@ class TagsModel(QAbstractItemModel): # {{{
self.db = self.root_item = None
def mimeTypes(self):
return ["application/calibre+from_library"]
return ["application/calibre+from_library",
'application/calibre+from_tag_browser']
def mimeData(self, indexes):
data = []
for idx in indexes:
if idx.isValid():
# get some useful serializable data
name = unicode(self.data(idx, Qt.DisplayRole).toString())
data.append(name)
else:
data.append(None)
raw = bytearray(cPickle.dumps(data, -1))
ans = QMimeData()
ans.setData('application/calibre+from_tag_browser', raw)
return ans
def dropMimeData(self, md, action, row, column, parent):
if not md.hasFormat("application/calibre+from_library") or \
fmts = set([unicode(x) for x in md.formats()])
if not fmts.intersection(set(self.mimeTypes())) or \
action != Qt.CopyAction:
return False
idx = parent
@ -1081,6 +1099,7 @@ class TagsModel(QAbstractItemModel): # {{{
if index.isValid():
node = self.data(index, Qt.UserRole)
if node.type == TagTreeItem.TAG:
ans |= Qt.ItemIsDragEnabled
fm = self.db.metadata_for_field(node.tag.category)
if node.tag.category in \
('tags', 'series', 'authors', 'rating', 'publisher') or \