Files
odoo_source/addons/web/models/ir_qweb.py
T
Sébastien Theys d870877967 [IMP] tools,base,web,website_*: keep image ratio on resize
* = website_partner, website_profile, website_sale, website_slides

Before
======

Since commit: 2e3848b394

The images that are resized have additional borders if the target ratio is
different than the image ratio. Those borders are transparent if the image
format supports it, and are white otherwise.

With that current solution, if the background where the image is displayed is
another color than white, it is looking really bad.

Moreover, most images are stored resized like this, so it is not even possible
to decide if it should have borders or not depending on the context, the
original image and ratio is forever lost.

It is also inconsistent because if the image is already smaller than the target
size then it doesn't include borders. In that case it keeps the original ratio
instead of the target ratio. So it isn't even guaranteed that the target
ratio is going to be respected.

After
=====

This commit will solve all of those problems by always keeping the ratio of the
original image.

This implies the views should be taking care of adding borders when necessary.

task-1958000
PR: #31811
2019-04-29 13:45:03 +00:00

93 lines
3.4 KiB
Python

# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
import hashlib
from collections import OrderedDict
from werkzeug.urls import url_quote
from odoo import api, models
from odoo.tools import pycompat
from odoo.tools import html_escape as escape
class Image(models.AbstractModel):
"""
Widget options:
``class``
set as attribute on the generated <img> tag
"""
_name = 'ir.qweb.field.image'
_description = 'Qweb Field Image'
_inherit = 'ir.qweb.field.image'
@api.model
def record_to_html(self, record, field_name, options):
assert options['tagName'] != 'img',\
"Oddly enough, the root tag of an image field can not be img. " \
"That is because the image goes into the tag, or it gets the " \
"hose again."
if options.get('qweb_img_raw_data', False):
return super(Image, self).record_to_html(record, field_name, options)
aclasses = ['img', 'img-fluid'] if options.get('qweb_img_responsive', True) else ['img']
aclasses += options.get('class', '').split()
classes = ' '.join(map(escape, aclasses))
max_size = None
if options.get('resize'):
max_size = options.get('resize')
else:
max_width, max_height = options.get('max_width', 0), options.get('max_height', 0)
if max_width or max_height:
max_size = '%sx%s' % (max_width, max_height)
sha = hashlib.sha1(str(getattr(record, '__last_update')).encode('utf-8')).hexdigest()[0:7]
max_size = '' if max_size is None else '/%s' % max_size
if options.get('filename-field') and getattr(record, options['filename-field'], None):
filename = record[options['filename-field']]
elif options.get('filename'):
filename = options['filename']
else:
filename = record.display_name
src = '/web/image/%s/%s/%s%s/%s?unique=%s' % (record._name, record.id, options.get('preview_image', field_name), max_size, url_quote(filename), sha)
if options.get('alt-field') and getattr(record, options['alt-field'], None):
alt = escape(record[options['alt-field']])
elif options.get('alt'):
alt = options['alt']
else:
alt = escape(record.display_name)
src_zoom = None
if options.get('zoom') and getattr(record, options['zoom'], None):
src_zoom = '/web/image/%s/%s/%s%s/%s?unique=%s' % (record._name, record.id, options['zoom'], max_size, url_quote(filename), sha)
elif options.get('zoom'):
src_zoom = options['zoom']
atts = OrderedDict()
atts["src"] = src
atts["class"] = classes
atts["style"] = options.get('style')
atts["alt"] = alt
atts["data-zoom"] = src_zoom and u'1' or None
atts["data-zoom-image"] = src_zoom
atts["data-no-post-process"] = options.get('data-no-post-process')
atts = self.env['ir.qweb']._post_processing_att('img', atts, options.get('template_options'))
img = ['<img']
for name, value in atts.items():
if value:
img.append(' ')
img.append(escape(pycompat.to_text(name)))
img.append('="')
img.append(escape(pycompat.to_text(value)))
img.append('"')
img.append('/>')
return u''.join(img)