[MERGE] Merged with branch propagating the use of user avatars instead of gravatars in crm and project. This branch also improve the photo management in hr. This revision modifies the photo for HR employees. Two fields now exist in the hr.employee model:

- photo_big, a binary field holding the image. It is base-64 encoded, and PIL-supported. It is automatically resized as an 540x450 px image.
 - photo, a functional binary field holding an automatically resized version of the photo. Dimensions of the resized photo are 180x150. This field is used as an inteface to get and set the employee photo.
When changing the photo through the photo function field, the new image is automatically resized to 540x450, and stored in the photo_big field. This triggers the function field, that will compute a 180x150 resized version of the image.

Employee photo should be used only when dealing with employees, using the photo field. When dealing with users, use the res.users avatar field instead.

bzr revid: tde@openerp.com-20120330084612-1225fmm6bx595mea

addons/crm/crm_lead_view.xml

@@ -304,7 +304,10 @@
                                             <field name="company_currency"/>
                                         </t>
                                     </td>
-                                    <td valign="top" width="22"><img t-att-src="kanban_gravatar(record.user_email.value, 22)" class="oe_kanban_gravatar" t-att-title="record.user_id.value"/></td>
+                                    <td valign="top" width="22">
+                                        <img t-att-src="kanban_image('res.users', 'avatar', record.user_id.raw_value[0])"  t-att-title="record.user_id.value"
+                                        width="22" height="22" class="oe_kanban_gravatar"/>
+                                    </td>
                                 </tr>
                                 </table>
 

addons/hr/hr.py

@@ -19,9 +19,12 @@
 #
 ##############################################################################
 
-from osv import fields, osv
-import logging
 import addons
+import io
+import logging
+from osv import fields, osv
+from PIL import Image
+import StringIO
 
 class hr_employee_category(osv.osv):
 
@@ -145,6 +148,34 @@ class hr_employee(osv.osv):
     _name = "hr.employee"
     _description = "Employee"
     _inherits = {'resource.resource': "resource_id"}
+
+    def onchange_photo(self, cr, uid, ids, value, context=None):
+        if not value:
+            return {'value': {'photo_big': value, 'photo': value} }
+        return {'value': {'photo_big': self._photo_resize(cr, uid, value, 540, 450, context=context), 'photo': self._photo_resize(cr, uid, value, context=context)} }
+    
+    def _set_photo(self, cr, uid, id, name, value, args, context=None):
+        if not value:
+            vals = {'photo_big': value}
+        else:
+            vals = {'photo_big': self._photo_resize(cr, uid, value, 540, 450, context=context)}
+        return self.write(cr, uid, [id], vals, context=context)
+    
+    def _photo_resize(self, cr, uid, photo, heigth=180, width=150, context=None):
+        image_stream = io.BytesIO(photo.decode('base64'))
+        img = Image.open(image_stream)
+        img.thumbnail((heigth, width), Image.ANTIALIAS)
+        img_stream = StringIO.StringIO()
+        img.save(img_stream, "JPEG")
+        return img_stream.getvalue().encode('base64')
+    
+    def _get_photo(self, cr, uid, ids, name, args, context=None):
+        result = dict.fromkeys(ids, False)
+        for hr_empl in self.browse(cr, uid, ids, context=context):
+            if hr_empl.photo_big:
+                result[hr_empl.id] = self._photo_resize(cr, uid, hr_empl.photo_big, context=context)
+        return result
+    
     _columns = {
         'country_id': fields.many2one('res.country', 'Nationality'),
         'birthday': fields.date("Date of Birth"),
@@ -170,7 +201,11 @@ class hr_employee(osv.osv):
         'resource_id': fields.many2one('resource.resource', 'Resource', ondelete='cascade', required=True),
         'coach_id': fields.many2one('hr.employee', 'Coach'),
         'job_id': fields.many2one('hr.job', 'Job'),
-        'photo': fields.binary('Photo'),
+        'photo_big': fields.binary('Big-sized employee photo', help="This field holds the photo of the employee. The photo field is used as an interface to access this field. The image is base64 encoded, and PIL-supported. Full-sized photo are however resized to 540x450 px."),
+        'photo': fields.function(_get_photo, fnct_inv=_set_photo, string='Employee photo', type="binary",
+            store = {
+                'hr.employee': (lambda self, cr, uid, ids, c={}: ids, ['photo_big'], 10),
+            }, help="Image used as photo for the employee. It is automatically resized as a 180x150 px image. A larger photo is stored inside the photo_big field."),
         'passport_id':fields.char('Passport No', size=64),
         'color': fields.integer('Color Index'),
         'city': fields.related('address_id', 'city', type='char', string='City'),
@@ -217,7 +252,7 @@ class hr_employee(osv.osv):
 
     def _get_photo(self, cr, uid, context=None):
         photo_path = addons.get_module_resource('hr','images','photo.png')
-        return open(photo_path, 'rb').read().encode('base64')
+        return self._photo_resize(cr, uid, open(photo_path, 'rb').read().encode('base64'), context=context)
 
     _defaults = {
         'active': 1,

addons/hr/hr_view.xml

@@ -34,7 +34,7 @@
                         <field name="parent_id" />
                         </group>
                         <group colspan="2" col="1">
-                          <field name="photo" widget='image' nolabel="1"/>
+                          <field name="photo" widget='image' nolabel="1" on_change="onchange_photo(photo)"/>
                         </group>
                     </group>
                     <notebook colspan="6">
@@ -131,7 +131,6 @@
         <field name="model">hr.employee</field>
         <field name="type">kanban</field>
         <field name="arch" type="xml">
-
             <kanban>
                 <templates>
                     <t t-name="kanban-box">

addons/project/project_view.xml

@@ -354,7 +354,8 @@
                                             <field name="name"/>
                                         </td>
                                         <td valign="top" width="22">
-                                            <img t-att-src="kanban_gravatar(record.user_email.value, 22)" class="oe_kanban_gravatar" t-att-title="record.user_id.value"/>
+                                            <img t-att-src="kanban_image('res.users', 'avatar', record.user_id.raw_value[0])"  t-att-title="record.user_id.value"
+                                            width="22" height="22" class="oe_kanban_gravatar"/>
                                         </td>
                                     </tr>
                                     </table>