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Only return a dummy PNG to Qt if the resource being loaded has a raster image extension

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This commit is contained in:
Kovid Goyal 2020-05-27 19:13:24 +05:30
parent 308f163a03
commit d9f2449ddc
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 17 additions and 14 deletions
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3
src/calibre/gui2/comments_editor.py
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@ -28,7 +28,7 @@ from calibre.gui2.widgets import LineEditECM
from calibre.gui2.widgets2 import to_plain_text from calibre.gui2.widgets2 import to_plain_text
from calibre.utils.config import tweaks from calibre.utils.config import tweaks
from calibre.utils.imghdr import what from calibre.utils.imghdr import what
from polyglot.builtins import filter, iteritems, itervalues, unicode_type, as_bytes from polyglot.builtins import filter, iteritems, itervalues, unicode_type
# Cleanup Qt markup {{{ # Cleanup Qt markup {{{
@ -764,6 +764,7 @@ class EditorWidget(QTextEdit, LineEditECM): # {{{
with lopen(path, 'rb') as f: with lopen(path, 'rb') as f:
data = f.read() data = f.read()
except EnvironmentError: except EnvironmentError:
if path.rpartition('.')[-1].lower() in {'jpg', 'jpeg', 'gif', 'png', 'bmp', 'webp'}:
return QByteArray(bytearray.fromhex( return QByteArray(bytearray.fromhex(
'89504e470d0a1a0a0000000d49484452' '89504e470d0a1a0a0000000d49484452'
'000000010000000108060000001f15c4' '000000010000000108060000001f15c4'

4
src/calibre/gui2/widgets2.py
View File

@ -489,6 +489,7 @@ class HTMLDisplay(QTextBrowser):
with lopen(path, 'rb') as f: with lopen(path, 'rb') as f:
data = f.read() data = f.read()
except EnvironmentError: except EnvironmentError:
if path.rpartition('.')[-1].lower() in {'jpg', 'jpeg', 'gif', 'png', 'bmp', 'webp'}:
return QByteArray(bytearray.fromhex( return QByteArray(bytearray.fromhex(
'89504e470d0a1a0a0000000d49484452' '89504e470d0a1a0a0000000d49484452'
'000000010000000108060000001f15c4' '000000010000000108060000001f15c4'
@ -498,7 +499,8 @@ class HTMLDisplay(QTextBrowser):
else: else:
return QByteArray(data) return QByteArray(data)
else: else:
QTextBrowser.loadResource(self, rtype, qurl) return QTextBrowser.loadResource(self, rtype, qurl)
class ScrollingTabWidget(QTabWidget): class ScrollingTabWidget(QTabWidget):