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[preview] Add Animated GIF support

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This commit is contained in:
Philipp Hörist
2017-11-20 22:19:24 +01:00
parent cca0fa0b2b
commit a438644124
2 changed files with 116 additions and 9 deletions
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39
url_image_preview/url_image_preview.py
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@@ -34,6 +34,7 @@ from gajim.plugins import GajimPlugin
from gajim.plugins.helpers import log_calls
from url_image_preview.http_functions import get_http_head, get_http_file
from url_image_preview.config_dialog import UrlImagePreviewConfigDialog
from url_image_preview.resize_gif import resize_gif
log = logging.getLogger('gajim.plugin_system.preview')
@@ -257,7 +258,10 @@ class Base(object):
loader = GdkPixbuf.PixbufLoader()
loader.write(mem)
loader.close()
pixbuf = loader.get_pixbuf()
if loader.get_format().get_name() == 'gif':
pixbuf = loader.get_animation()
else:
pixbuf = loader.get_pixbuf()
except GLib.GError as error:
log.info('Failed to load image using Gdk.Pixbuf')
log.debug(error)
@@ -273,12 +277,21 @@ class Base(object):
array, GdkPixbuf.Colorspace.RGB, True,
8, width, height, width * 4)
thumbnail = pixbuf.scale_simple(
size, size, GdkPixbuf.InterpType.BILINEAR)
try:
self._create_path(os.path.dirname(thumbpath))
thumbnail.savev(thumbpath, 'png', [], [])
height, width = pixbuf.get_height(), pixbuf.get_width()
thumbnail = pixbuf
if isinstance(pixbuf, GdkPixbuf.PixbufAnimation):
if size <= height and size <= width:
resize_gif(mem, thumbpath, (size, size))
thumbnail = self._load_thumbnail(thumbpath)
else:
self._write_file(thumbpath, mem)
else:
if size <= height and size <= width:
thumbnail = pixbuf.scale_simple(
size, size, GdkPixbuf.InterpType.BILINEAR)
thumbnail.savev(thumbpath, 'png', [], [])
except Exception as error:
dialogs.ErrorDialog(
_('Could not save file'),
@@ -286,14 +299,19 @@ class Base(object):
'for image file (see error log for more '
'information)'),
transient_for=app.app.get_active_window())
log.error(error)
log.exception(error)
return
return thumbnail
def _load_thumbnail(self, thumbpath):
@staticmethod
def _load_thumbnail(thumbpath):
ext = os.path.splitext(thumbpath)[1]
if ext == '.gif':
return GdkPixbuf.PixbufAnimation.new_from_file(thumbpath)
return GdkPixbuf.Pixbuf.new_from_file(thumbpath)
def _write_file(self, path, data):
@staticmethod
def _write_file(path, data):
log.info("Writing '%s' of size %d...", path, len(data))
try:
with open(path, "wb") as output_file:
@@ -327,7 +345,10 @@ class Base(object):
anchor = buffer_.create_child_anchor(iter_)
image = Gtk.Image.new_from_pixbuf(pixbuf)
if isinstance(pixbuf, GdkPixbuf.PixbufAnimation):
image = Gtk.Image.new_from_animation(pixbuf)
else:
image = Gtk.Image.new_from_pixbuf(pixbuf)
event_box.add(image)
event_box.show_all()
self.textview.tv.add_child_at_anchor(event_box, anchor)