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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.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(_(
'Automatically detect and remove extra space at the cover\'s edges.\n'
'Pressing it repeatedly can sometimes remove stubborn borders.'))
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)
b.setMenu(m)
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.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):
from calibre.ebooks import calibre_cover
from calibre.ebooks.metadata import fmt_sidx