def _try_generating_thumbnail_url(rel_path, alias=None):
"""
Falls back to original fail url if thumbnail generation fails, or if no alias is provided.
"""
if alias:
try:
thumb = get_game_thumbnailer(rel_path)[alias] # we enforce the GAME_FILES storage here!
return thumb.url
except Exception, e:
logging.warning("Error generating game_file_img %s (alias=%s): %r", rel_path, alias, e)
pass # fallback to plain file
def _try_generating_thumbnail_url(rel_path, alias=None):
"""
Falls back to original fail url if thumbnail generation fails, or if no alias is provided.
"""
if alias:
try:
thumb = get_game_thumbnailer(rel_path)[
alias] # we enforce the GAME_FILES storage here!
return thumb.url
except Exception as e:
logging.warning("Error generating game_file_img %s (alias=%s): %r",
rel_path, alias, e)
pass # fallback to plain file
return real_game_file_url(rel_path) # original image
def generate_image_viewer(imageurl, width=300, height=300, preset=None, align="", **kwargs):
"""
Align, if not empty, can be center/left/right.
"""
md5 = hashlib.md5()
md5.update(imageurl.encode('ascii', 'ignore'))
myhash = md5.hexdigest()[0:8]
thumb = None
rel_path = checked_game_file_path(imageurl)
if not rel_path:
thumburl = imageurl # this might just not be an internal, secure, image
else:
try:
# this url is actually a local game file
thumbnailer = get_game_thumbnailer(rel_path)
thumb = None
if preset:
try:
thumb = thumbnailer[preset]
except Exception, e: # eg. if preset name is unexisting
logging.critical("generate_image_viewer preset selection failed for %s/%s", imageurl, preset, exc_info=True)
pass
if not thumb: #we fallback to default options
options = {
'autocrop': False, # remove useless whitespace
'crop': False, # no cropping at all,thumb must fit in both W and H
'size': (width, height), # one of these can be 0
}
thumb = thumbnailer.get_thumbnail(options)
thumburl = thumb.url
except Exception, e:
logging.critical("generate_image_viewer thumbnail generation failed %s - %s", imageurl, preset, exc_info=True)
thumburl = imageurl # we give up thumbnailing...
def generate_image_viewer(imageurl,
width=500,
height=400,
preset=None,
align="",
**kwargs):
"""
Generates an image thumbnail linking to the original image.
Align, if not empty, can be center/left/right.
"""
md5 = hashlib.md5()
md5.update(imageurl.encode('ascii', 'ignore'))
myhash = md5.hexdigest()[0:8]
thumb = None
rel_path = checked_game_file_path(imageurl)
if not rel_path:
thumburl = imageurl # this might just not be an internal, secure, image
else:
try:
# this url is actually a local game file
thumbnailer = get_game_thumbnailer(rel_path)
if preset:
try:
thumb = thumbnailer[preset]
except Exception as e: # eg. if preset name is unexisting
logging.critical(
"generate_image_viewer preset selection failed for %s/%s",
imageurl,
preset,
exc_info=True)
pass
if not thumb: #we fallback to default options
options = {
'autocrop': False, # remove useless whitespace
'crop':
False, # no cropping at all,thumb must fit in both W and H
'size': (width, height), # one of these can be 0
}
thumb = thumbnailer.get_thumbnail(options)
thumburl = thumb.url
except Exception as e:
logging.critical(
"generate_image_viewer thumbnail generation failed %s - %s",
imageurl,
preset,
exc_info=True)
thumburl = imageurl # we give up thumbnailing...
options = \
{
"title": "", # no title for now
"id": myhash,
"imageurl": escape(imageurl),
"thumburl": escape(thumburl),
"width": escape(thumb.width if thumb else width),
"height": escape(thumb.height if thumb else height),
"classes": "align-%s" % align if align else "",
}
template = (
"""<a href="%(imageurl)s"><img class="imageviewer %(classes)s" src="%(thumburl)s" title="%(title)s" id="%(id)s" """
+ """style="max-width: %(width)spx; max-height:%(height)spx"/></a>""")
return template % options
