Size limit for download as jpg

components/common/resources/ome/config.xml

@@ -224,6 +224,11 @@
        <property name="mutable" value="false"/>
        <property name="visibility" value="all"/>
     </bean>
+    <bean class="ome.system.Preference" id="omero.client.download_as_jpg.max_size">
+       <property name="db" value="false"/>
+       <property name="mutable" value="false"/>
+       <property name="visibility" value="all"/>
+    </bean>
     <!-- End preference list -->
             </list>
         </property>

components/tools/OmeroPy/src/omero/gateway/__init__.py

@@ -1545,6 +1545,23 @@ def getInterpolateSetting(self):
         return (self.getConfigService().getConfigValue(
                 "omero.client.viewer.interpolate_pixels") or 'true')
 
+    def getDownloadAsJpgMaxSizeSetting(self):
+        """
+        Returns default max size of images that can be downloaded as
+        jpg, png or tiff, expressed as number of pixels.
+        Default is 144000000 (12k * 12k image)
+
+        :return:    Integer
+        """
+        size = 144000000
+        try:
+            size = self.getConfigService().getConfigValue(
+                "omero.client.download_as_jpg.max_size")
+            size = int(size)
+        except:
+            pass
+        return size
+
     def getWebclientHost(self):
         """
         Returns default initial zoom level set on the server.

components/tools/OmeroWeb/omeroweb/decorators.py

@@ -260,6 +260,8 @@ def load_server_settings(self, conn, request):
                 conn.getInitialZoomLevel()
             request.session['server_settings']['interpolate_pixels'] = \
                 toBoolean(conn.getInterpolateSetting())
+            request.session['server_settings']['download_as_jpg_max_size'] = \
+                conn.getDownloadAsJpgMaxSizeSetting()
 
     def get_public_user_connector(self):
         """

components/tools/OmeroWeb/omeroweb/settings.py

@@ -628,6 +628,12 @@ def leave_none_unset_int(s):
           " 'webtest/webclient_plugins/center_plugin.overlay.js.html',"
           " 'channel_overlay_panel']``. "
           "The javascript loads data into ``$('#div_id')``.")],
+    "omero.web.download_jpg.max_size":
+        ["DOWNLOAD_JPG_MAX_SIZE",
+         144000000,
+         int,
+         ("Disable download as jpg, png & tiff for images"
+          "where sizeX * sizeY exceeds this limit")],
 }
 
 DEPRECATED_SETTINGS_MAPPINGS = {

components/tools/OmeroWeb/omeroweb/webclient/controller/container.py

@@ -204,6 +204,27 @@ def getPlateId(self):
         elif self.acquisition:
             return self.acquisition._obj.plate.id.val
 
+    def canExportAsJpg(self, request, objDict=None):
+        """
+        Can't export as Jpg, Png, Tiff if bigger than approx 12k * 12k.
+        Limit set by OOM error in omeis.providers.re.RGBIntBuffer
+        """
+        can = True
+        try:
+            limit = request.session['server_settings'][
+                'download_as_jpg_max_size']
+        except:
+            limit = 144000000
+        if self.image:
+            if (self.image.getSizeX() * self.image.getSizeY()) > limit:
+                can = False
+        elif objDict is not None:
+            if 'image' in objDict:
+                for i in objDict['image']:
+                    if (i.getSizeX() * i.getSizeY()) > limit:
+                        can = False
+        return can
+
     def canDownload(self, objDict=None):
         """
         Returns False if any of selected object cannot be downloaded

components/tools/OmeroWeb/omeroweb/webclient/templates/webclient/annotations/includes/toolbar.html

@@ -148,53 +148,96 @@
             {% endif %}
 
             {% if image %}
-              <li>
+              {% with ex=canExportAsJpg %}
+              <li {% if not ex %}class="disabled"{% endif %}>
+                <a 
                   {% if share and not share.share.isOwned %}
-                      <a href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}"
-                        title="Download as JPEG">
+                      href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}"
                   {% else %}
-                      <a href="{% url 'web_render_image_download' image.id %}" title="Download as JPEG">
+                      href="{% url 'web_render_image_download' image.id %}"
                   {% endif %}
+                  {% if not ex %}
+                      class="disabled" title="Image is too big to download as JPEG"
+                  {% else %}
+                      title="Download as JPEG"
+                  {% endif %}
+                  >
                   Export as JPEG
                 </a>
               </li>
-              <li>
+              <li {% if not ex %}class="disabled"{% endif %}>
+                <a 
                   {% if share and not share.share.isOwned %}
-                      <a href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}?format=png"
-                        title="Download as PNG">
+                      href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}?format=png"
                   {% else %}
-                      <a href="{% url 'web_render_image_download' image.id %}?format=png" title="Download as PNG">
+                      href="{% url 'web_render_image_download' image.id %}?format=png"
                   {% endif %}
+                  {% if not ex %}
+                      class="disabled" title="Image is too big to download as PNG"
+                  {% else %}
+                      title="Download as PNG"
+                  {% endif %}
+                  >
                   Export as PNG
                 </a>
               </li>
-              <li>
+              <li {% if not ex %}class="disabled"{% endif %}>
+                <a
                   {% if share and not share.share.isOwned %}
-                      <a href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}?format=tif"
-                        title="Download as TIFF">
+                      href="{% url 'web_render_image_download' share_id=share.share.id iid=image.id %}?format=tif"
+                  {% else %}
+                      href="{% url 'web_render_image_download' image.id %}?format=tif"
+                  {% endif %}
+                  {% if not ex %}
+                      class="disabled" title="Image is too big to download as TIFF"
                   {% else %}
-                      <a href="{% url 'web_render_image_download' image.id %}?format=tif" title="Download as TIFF">
+                      title="Download as TIFF"
                   {% endif %}
+                  >
                   Export as TIFF
                 </a>
               </li>
+              {% endwith %}
             {% else %}
               {% if filesetInfo %}
-              <li>
+              {% with ex=canExportAsJpg %}
+              <li {% if not ex %}class="disabled"{% endif %}>
                 <a href="#"
                   onClick="return OME.openPopup('{% url 'download_placeholder' %}?ids={{ link_string }}&format=jpeg&index={{ index }}');"
-                  title="Download as JPEGs (zip)">Export as JPEG</a>
+                  {% if not ex %}
+                      class="disabled" title="Images are too big to download as JPEGs"
+                  {% else %}
+                      title="Download as JPEGs (zip)"
+                  {% endif %}
+                  >
+                  Export as JPEG
+                </a>
               </li>
-              <li>
+              <li {% if not ex %}class="disabled"{% endif %}>
                 <a href="#"
                   onClick="return OME.openPopup('{% url 'download_placeholder' %}?ids={{ link_string }}&format=png&index={{ index }}');"
-                  title="Download as PNGs (zip)">Export as PNG</a>
+                  {% if not ex %}
+                      class="disabled" title="Images are too big to download as PNGs"
+                  {% else %}
+                      title="Download as PNGs (zip)"
+                  {% endif %}
+                  >
+                  Export as PNG
+                </a>
               </li>
-              <li>
+              <li {% if not ex %}class="disabled"{% endif %}>
                 <a href="#"
                   onClick="return OME.openPopup('{% url 'download_placeholder' %}?ids={{ link_string }}&format=tif&index={{ index }}');"
-                  title="Download as TIFFs (zip)">Export as TIFF</a>
+                  {% if not ex %}
+                      class="disabled" title="Images are too big to download as TIFFs"
+                  {% else %}
+                      title="Download as TIFFs (zip)"
+                  {% endif %}
+                  >
+                  Export as TIFF
+                </a>
               </li>
+              {% endwith %}
               {% endif %}
             {% endif %}
         </ul>

components/tools/OmeroWeb/omeroweb/webclient/views.py

@@ -1078,6 +1078,7 @@ def load_metadata_details(request, c_type, c_id, conn=None, share_id=None,
         else:
             template = "webclient/annotations/metadata_general.html"
             manager.annotationList()
+            context['canExportAsJpg'] = manager.canExportAsJpg(request)
             figScripts = manager.listFigureScripts()
             form_comment = CommentAnnotationForm(initial=initial)
     context['manager'] = manager
@@ -1568,6 +1569,7 @@ def batch_annotate(request, conn=None, **kwargs):
     ratings = manager.getGroupedRatings(allratings)
 
     figScripts = manager.listFigureScripts(objs)
+    canExportAsJpg = manager.canExportAsJpg(request, objs)
     filesetInfo = None
     iids = []
     if 'well' in objs and len(objs['well']) > 0:
@@ -1605,6 +1607,7 @@ def batch_annotate(request, conn=None, **kwargs):
         'batch_ann': True,
         'index': index,
         'figScripts': figScripts,
+        'canExportAsJpg': canExportAsJpg,
         'filesetInfo': filesetInfo,
         'annotationBlocked': annotationBlocked,
         'userRatingAvg': userRatingAvg,

etc/omero.properties

@@ -834,6 +834,9 @@ omero.client.ui.menu.dropdown.everyone.enabled=true
 # Client viewers interpolate pixels by default.
 omero.client.viewer.interpolate_pixels=true
 
+# Clients disable download as jpg/png/tiff above max pixel count.
+omero.client.download_as_jpg.max_size=144000000
+
 #############################################
 ## Ice overrides
 ##