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bfe_photos.py
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Created
Wed, Sep 11, 05:23
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5 KB
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text/x-python
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Fri, Sep 13, 05:23 (2 d)
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blob
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R3600 invenio-infoscience
bfe_photos.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2008, 2009, 2010, 2011 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""BibFormat element - Print photos of the record (if bibdoc file)
"""
import
cgi
from
invenio.bibdocfile
import
BibRecDocs
from
invenio.utils.url
import
create_html_link
def
format_element
(
bfo
,
separator
=
" "
,
style
=
''
,
img_style
=
''
,
text_style
=
'font-size:small'
,
print_links
=
'yes'
,
max_photos
=
''
,
show_comment
=
'yes'
,
img_max_width
=
'250px'
,
display_all_version_links
=
'yes'
):
"""
Lists the photos of a record. Display the icon version, linked to
its original version.
This element works for photos appended to a record as BibDoc
files, for which a preview icon has been generated. If there are
several formats for one photo, use the first one found.
@param separator: separator between each photo
@param print_links: if 'yes', print links to the original photo
@param style: style attributes of the whole image block. Eg: "padding:2px;border:1px"
@param img_style: style attributes of the images. Eg: "width:50px;border:none"
@param text_style: style attributes of the text. Eg: "font-size:small"
@param max_photos: the maximum number of photos to display
@param show_comment: if 'yes', display the comment of each photo
@param display_all_version_links: if 'yes', print links to additional (sub)formats
"""
photos
=
[]
bibarchive
=
BibRecDocs
(
bfo
.
recID
)
bibdocs
=
bibarchive
.
list_bibdocs
()
if
max_photos
.
isdigit
():
max_photos
=
int
(
max_photos
)
else
:
max_photos
=
len
(
bibdocs
)
for
doc
in
bibdocs
[:
max_photos
]:
found_icons
=
[]
found_url
=
''
for
docfile
in
doc
.
list_latest_files
():
if
docfile
.
is_icon
():
found_icons
.
append
((
docfile
.
get_size
(),
docfile
.
get_url
()))
else
:
found_url
=
docfile
.
get_url
()
found_icons
.
sort
()
if
found_icons
:
additional_links
=
''
name
=
bibarchive
.
get_docname
(
doc
.
id
)
comment
=
doc
.
list_latest_files
()[
0
]
.
get_comment
()
preview_url
=
None
if
len
(
found_icons
)
>
1
:
preview_url
=
found_icons
[
1
][
1
]
additional_urls
=
[(
docfile
.
get_size
(),
docfile
.
get_url
(),
\
docfile
.
get_superformat
(),
docfile
.
get_subformat
())
\
for
docfile
in
doc
.
list_latest_files
()
if
not
docfile
.
is_icon
()]
additional_urls
.
sort
()
additional_links
=
[
create_html_link
(
url
,
urlargd
=
{},
\
linkattrd
=
{
'style'
:
'font-size:x-small'
},
\
link_label
=
"
%s
%s
(
%s
)"
%
(
format
.
strip
(
'.'
)
.
upper
(),
subformat
,
format_size
(
size
)))
\
for
(
size
,
url
,
format
,
subformat
)
in
additional_urls
]
img
=
'<img src="
%(icon_url)s
" alt="
%(name)s
" style="max-width:
%(img_max_width)s
;_width:
%(img_max_width)s
;
%(img_style)s
" />'
%
\
{
'icon_url'
:
cgi
.
escape
(
found_icons
[
0
][
1
],
True
),
'name'
:
cgi
.
escape
(
name
,
True
),
'img_style'
:
img_style
,
'img_max_width'
:
img_max_width
}
if
print_links
.
lower
()
==
'yes'
:
img
=
'<a href="
%s
">
%s
</a>'
%
(
cgi
.
escape
(
preview_url
or
found_url
,
True
),
img
)
if
display_all_version_links
.
lower
()
==
'yes'
and
additional_links
:
img
+=
'<br />'
+
' '
.
join
(
additional_links
)
+
'<br />'
if
show_comment
.
lower
()
==
'yes'
and
comment
:
img
+=
'<div style="margin-auto;text-align:center;
%(text_style)s
">
%(comment)s
</div>'
%
\
{
'comment'
:
comment
.
replace
(
'
\n
'
,
'<br/>'
),
'text_style'
:
text_style
}
img
=
'<div style="vertical-align: middle;text-align:center;display:inline-block;display: -moz-inline-stack;zoom: 1;*display: inline;max-width:
%(img_max_width)s
;_width:
%(img_max_width)s
;text-align:center;
%(style)s
">
%(img)s
</div>'
%
\
{
'img_max_width'
:
img_max_width
,
'style'
:
style
,
'img'
:
img
}
photos
.
append
(
img
)
return
'<div>'
+
separator
.
join
(
photos
)
+
'</div>'
def
escape_values
(
bfo
):
"""
Called by BibFormat in order to check if output of this element
should be escaped.
"""
return
0
def
format_size
(
size
):
"""
Get human-readable string for the given size in Bytes
"""
if
size
<
1024
:
return
"
%d
byte
%s
"
%
(
size
,
size
!=
1
and
's'
or
''
)
elif
size
<
1024
*
1024
:
return
"
%.1f
KB"
%
(
size
/
1024
)
elif
size
<
1024
*
1024
*
1024
:
return
"
%.1f
MB"
%
(
size
/
(
1024
*
1024
))
else
:
return
"
%.1f
GB"
%
(
size
/
(
1024
*
1024
*
1024
))
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