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Edit metadata : Add the ability to trim covers manually

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Edit metadata dialog: Add the ability to trim covers manually, if automatic trimming is not satisfactory. Fixes #1256054 [[Enhancement] Enhanced cover picture trim](https://bugs.launchpad.net/calibre/+bug/1256054)
This commit is contained in:
Kovid Goyal 2013-12-04 16:01:45 +05:30
parent 77887df865
commit 7e49bd7983
1 changed files with 13 additions and 2 deletions
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15
src/calibre/gui2/metadata/basic_widgets.py
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@ -926,12 +926,15 @@ class Cover(ImageView): # {{{
self.clicked.connect(action) self.clicked.connect(action)
self.select_cover_button = CB(_('&Browse'), 'document_open.png', self.select_cover) self.select_cover_button = CB(_('&Browse'), 'document_open.png', self.select_cover)
self.trim_cover_button = b = CB(_('T&rim borders'), 'trim.png', self.trim_cover) self.trim_cover_button = b = CB(_('T&rim borders'), 'trim.png')
b.setToolTip(_( b.setToolTip(_(
'Automatically detect and remove extra space at the cover\'s edges.\n' 'Automatically detect and remove extra space at the cover\'s edges.\n'
'Pressing it repeatedly can sometimes remove stubborn borders.')) 'Pressing it repeatedly can sometimes remove stubborn borders.'))
b.m = m = QMenu() b.m = m = QMenu()
b.setPopupMode(QToolButton.DelayedPopup) b.setPopupMode(QToolButton.InstantPopup)
m.addAction(QIcon(I('trim.png')), _('Automatically trim borders'), self.trim_cover)
m.addSeparator()
m.addAction(_('Trim borders manually'), self.manual_trim_cover)
m.addAction(QIcon(I('edit-undo.png')), _('Undo last trim'), self.undo_trim) m.addAction(QIcon(I('edit-undo.png')), _('Undo last trim'), self.undo_trim)
b.setMenu(m) b.setMenu(m)
self.remove_cover_button = CB(_('&Remove'), 'trash.png', self.remove_cover) self.remove_cover_button = CB(_('&Remove'), 'trash.png', self.remove_cover)
@ -1005,6 +1008,14 @@ class Cover(ImageView): # {{{
self.current_val = im.export('png') self.current_val = im.export('png')
self.cdata_before_trim = cdata self.cdata_before_trim = cdata
def manual_trim_cover(self):
cdata = self.current_val
from calibre.gui2.dialogs.trim_image import TrimImage
d = TrimImage(cdata, parent=self)
if d.exec_() == d.Accepted and d.image_data is not None:
self.current_val = d.image_data
self.cdata_before_trim = cdata
def generate_cover(self, *args): def generate_cover(self, *args):
from calibre.ebooks import calibre_cover from calibre.ebooks import calibre_cover
from calibre.ebooks.metadata import fmt_sidx from calibre.ebooks.metadata import fmt_sidx