Control the resolution of the projector

openslides/core/config.py

@@ -4,13 +4,15 @@ from django.utils.translation import ugettext as _
 from .exceptions import ConfigError, ConfigNotFound
 from .models import ConfigStore
 
+# remove resolution when changing to multiprojector
 INPUT_TYPE_MAPPING = {
     'string': str,
     'text': str,
     'integer': int,
     'boolean': bool,
     'choice': str,
-    'colorpicker': str}
+    'colorpicker': str,
+    'resolution': dict}
 
 
 class ConfigHandler:
@@ -86,6 +88,16 @@ class ConfigHandler:
             except DjangoValidationError as e:
                 raise ConfigError(e.messages[0])
 
+        # remove this block when changing to multiprojector
+        if config_variable.input_type == 'resolution':
+            if value.get('width') is None or value.get('height') is None:
+                raise ConfigError(_('A width and a height have to be given.'))
+            if not isinstance(value['width'], int) or not isinstance(value['height'], int):
+                raise ConfigError(_('Data has to be integers.'))
+            if (value['width'] < 800 or value['width'] > 3840 or
+                    value['height'] < 600 or value['height'] > 2160):
+                raise ConfigError(_('The Resolution have to be between 800x600 and 3840x2160.'))
+
         # Save the new value to the database.
         ConfigStore.objects.update_or_create(key=key, defaults={'value': value})
 

openslides/core/config_variables.py

@@ -155,3 +155,12 @@ def get_config_variables():
         label='Default countdown',
         weight=185,
         group='Projector')
+
+    # set the resolution for one projector. It can be removed with the multiprojector feature.
+    yield ConfigVariable(
+        name='projector_resolution',
+        default_value={'width': 1024, 'height': 768},
+        input_type='resolution',
+        label='Projector Resolution',
+        weight=200,
+        group='Projector')

openslides/core/migrations/0004_projector_resolution.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.9 on 2016-08-25 11:56
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0003_auto_20160815_1911'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='projector',
+            name='height',
+            field=models.PositiveIntegerField(default=768),
+        ),
+        migrations.AddField(
+            model_name='projector',
+            name='width',
+            field=models.PositiveIntegerField(default=1024),
+        ),
+    ]

openslides/core/models.py

@@ -66,6 +66,11 @@ class Projector(RESTModelMixin, models.Model):
 
     scroll = models.IntegerField(default=0)
 
+    # currently unused, but important for the multiprojector.
+    width = models.PositiveIntegerField(default=1024)
+
+    height = models.PositiveIntegerField(default=768)
+
     class Meta:
         """
         Contains general permissions that can not be placed in a specific app.

openslides/core/serializers.py

@@ -30,7 +30,7 @@ class ProjectorSerializer(ModelSerializer):
 
     class Meta:
         model = Projector
-        fields = ('id', 'config', 'elements', 'scale', 'scroll', )
+        fields = ('id', 'config', 'elements', 'scale', 'scroll', 'width', 'height',)
 
 
 class CustomSlideSerializer(ModelSerializer):

openslides/core/static/css/app.css

@@ -322,6 +322,14 @@ img {
     margin-left: 20px;
 }
 
+/* .resolution can be removed with the multiprojector, but maybe
+ * it could be reused for the settings in the projectormanage-view */
+.col1 .input-group .resolution {
+    float: none;
+    display: inline-block;
+    width: 80px;
+    border-radius: 4px !important;
+}
 
 /* Toolbar to save motion in inline editing mode */
 .motion-save-toolbar {
@@ -633,23 +641,14 @@ img {
 
 /* iframe for live view */
 .col2 #iframe {
-    width: 1024px;
-    height: 768px;
     -moz-transform-origin: 0 0;
     -webkit-transform-origin: 0 0;
     -o-transform-origin: 0 0;
     transform-origin: 0 0 0;
-    -moz-transform: scale(0.25);
-    -webkit-transform: scale(0.25);
-    -o-transform: scale(0.25);
-    transform: scale(0.25);
-    /* IE8+ - must be on one line, unfortunately */
-    -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.25, M12=0, M21=0, M22=0.25, SizingMethod='auto expand')";
 }
 
 .col2 #iframewrapper {
     width: 256px;
-    height: 192px;
     position: relative;
     overflow: hidden;
     border: 1px solid #D5D5D5;
@@ -658,7 +657,6 @@ img {
 
 .col2 #iframeoverlay {
     width: 256px;
-    height: 192px;
     position: absolute;
     top: 0px;
     left: 0px;
@@ -666,9 +664,7 @@ img {
     z-index: 1;
 }
 
-
 /** Footer **/
-
 #footer {
     float: left;
     height: 50px;
@@ -684,6 +680,16 @@ img {
     background-color: #317796;
 }
 
+.dropdown-entries {
+    white-space: nowrap;
+}
+
+.dropdown-entries > li {
+    padding: 5px 10px 5px 10px;
+    width: 100%;
+    cursor: pointer;
+}
+
 .slimDropDown {
     padding-left: 4px !important;
     padding-right: 4px !important;

openslides/core/static/css/projector.css

@@ -11,6 +11,44 @@ body{
     color: #222;
 }
 
+/*** ProjectorContainer ***/
+.pContainer {
+    background-color: #222;
+    width: 100%;
+    height: 100%;
+    position: absolute;
+    top: 0;
+    left: 0;
+    display: table;
+}
+
+.pContainer > div {
+    display: table-cell;
+    vertical-align: middle;
+}
+
+.pContainer #iframe {
+    -moz-transform-origin: 0 0;
+    -webkit-transform-origin: 0 0;
+    -o-transform-origin: 0 0;
+    transform-origin: 0 0 0;
+}
+
+.pContainer #iframewrapper {
+    position: relative;
+    overflow: hidden;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+.pContainer #iframeoverlay {
+    position: absolute;
+    top: 0px;
+    left: 0px;
+    display: block;
+    z-index: 1;
+}
+
 /*** HEADER ***/
 #header {
     box-shadow: 0 0 7px rgba(0,0,0,0.6);

openslides/core/static/js/core/base.js

@@ -286,7 +286,6 @@ angular.module('OpenSlidesApp.core', [
     }
 ])
 
-
 .factory('jsDataModel', [
     '$http',
     'Projector',

openslides/core/static/js/core/projector.js

@@ -57,6 +57,65 @@ angular.module('OpenSlidesApp.core.projector', ['OpenSlidesApp.core'])
     }
 ])
 
+// Projector Container Controller
+.controller('ProjectorContainerCtrl', [
+    '$scope',
+    'Config',
+    function($scope, Config) {
+        // watch for changes in Config
+        var last_conf;
+        $scope.$watch(function () {
+            return Config.lastModified();
+        }, function () {
+            var conf = Config.get('projector_resolution').value;
+            // With multiprojector, get the resolution from Prjector.get(pk).{width; height}
+            if(!last_conf || last_conf.width != conf.width || last-conf.height != conf.height) {
+                last_conf = conf;
+                $scope.projectorWidth = conf.width;
+                $scope.projectorHeight = conf.height;
+                $scope.recalculateIframe();
+            }
+        });
+
+        // recalculate the actual Iframesize and scale
+        $scope.recalculateIframe = function () {
+            var scale_width = window.innerWidth / $scope.projectorWidth;
+            var scale_height = window.innerHeight / $scope.projectorHeight;
+
+            if (scale_width > 1 && scale_height > 1) {
+                // Iframe fits in full size in the window
+                $scope.scale = 1;
+                $scope.iframeWidth = $scope.projectorWidth;
+                $scope.iframeHeight = $scope.projectorHeight;
+            } else {
+                // Iframe has to be scaled down
+                if (scale_width <= scale_height) {
+                    // width is the reference
+                    $scope.iframeWidth = window.innerWidth;
+                    $scope.scale = scale_width;
+                    $scope.iframeHeight = $scope.projectorHeight * scale_width;
+                } else {
+                    // height is the reference
+                    $scope.iframeHeight = window.innerHeight;
+                    $scope.scale = scale_height;
+                    $scope.iframeWidth = $scope.projectorWidth * scale_height;
+                }
+            }
+        };
+
+        // watch for changes in the windowsize
+        $(window).on("resize.doResize", function () {
+            $scope.$apply(function() {
+                $scope.recalculateIframe();
+            });
+        });
+
+        $scope.$on("$destroy",function (){
+            $(window).off("resize.doResize");
+        });
+    }
+])
+
 .controller('ProjectorCtrl', [
     '$scope',
     'Projector',

openslides/core/static/js/core/site.js

@@ -602,6 +602,15 @@ angular.module('OpenSlidesApp.core.site', [
             })
             .state('projector', {
                 url: '/projector',
+                templateUrl: 'static/templates/projector-container.html',
+                data: {extern: true},
+                onEnter: function($window) {
+                    $window.location.href = this.url;
+                }
+            })
+            .state('real-projector', {
+                url: '/real-projector',
+                templateUrl: 'static/templates/projector.html',
                 data: {extern: true},
                 onEnter: function($window) {
                     $window.location.href = this.url;
@@ -802,6 +811,7 @@ angular.module('OpenSlidesApp.core.site', [
     'Config',
     'gettextCatalog',
     function($parse, Config, gettextCatalog) {
+        // remove resolution when changing to multiprojector
         function getHtmlType(type) {
             return {
                 string: 'text',
@@ -810,6 +820,7 @@ angular.module('OpenSlidesApp.core.site', [
                 boolean: 'checkbox',
                 choice: 'choice',
                 colorpicker: 'colorpicker',
+                resolution: 'resolution',
             }[type];
         }
 
@@ -1076,6 +1087,22 @@ angular.module('OpenSlidesApp.core.site', [
 
         });
 
+        // watch for changes in Config
+        var last_conf;
+        $scope.$watch(function () {
+            return Config.lastModified();
+        }, function () {
+            var conf = Config.get('projector_resolution').value;
+            // With multiprojector, get the resolution from Prjector.get(pk).{width; height}
+            if(!last_conf || last_conf.width != conf.width || last-conf.height != conf.height) {
+                last_conf = conf;
+                $scope.projectorWidth = conf.width;
+                $scope.projectorHeight = conf.height;
+                $scope.scale = 256.0 / $scope.projectorWidth;
+                $scope.iframeHeight = $scope.scale * $scope.projectorHeight;
+            }
+        });
+
         // *** countdown functions ***
         $scope.calculateCountdownTime = function (countdown) {
             countdown.seconds = Math.floor( countdown.countdown_time - Date.now() / 1000 + $scope.serverOffset );

openslides/core/static/templates/config-form-field.html

@@ -11,6 +11,26 @@
            id="{{ key }}"
            type="{{ type }}">
 
+    <!-- resolution -->
+    <!-- Can be removed with multiprojector, but maybe it could be reused in the projectormanage-view -->
+    <!-- if removed, remember to delete the class resolution -->
+    <span ng-if="type == 'resolution'">
+      <translate>Width</translate>:
+      <input ng-model="$parent.value.width"
+             ng-model-option="{debounce: 1000}"
+             ng-change="save(configOption.key, $parent.value)"
+             class="form-control resolution"
+             id="{{ key }}_width"
+             type="number">
+      <translate>Height</translate>:
+      <input ng-model="$parent.value.height"
+             ng-model-option="{debounce: 1000}"
+             ng-change="save(configOption.key, $parent.value)"
+             class="form-control resolution"
+             id="{{ key }}_height"
+             type="number">
+    </span>
+
     <!-- colorpicker -->
     <input ng-if="type == 'colorpicker'"
            colorpicker

openslides/core/static/templates/core/projector-controls.html

@@ -9,9 +9,30 @@
         <h4 translate>Live view</h4>
       </a>
       <div uib-collapse="isLiveViewClosed" ng-cloak>
+        <style>
+          /* iframe for live view */
+          .col2 #iframe {
+              width: {{ projectorWidth }}px;
+              height: {{ projectorHeight }}px;
+              -moz-transform: scale({{ scale }});
+              -webkit-transform: scale({{ scale }});
+              -o-transform: scale({{ scale }});
+              transform: scale({{ scale }});
+              /* IE8+ - must be on one line, unfortunately */
+              -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11={{ scale }}, M12=0, M21=0, M22={{ scale }}, SizingMethod='auto expand')";
+          }
+
+          .col2 #iframewrapper {
+              height: {{ iframeHeight }}px;
+          }
+
+          .col2 #iframeoverlay {
+            height: {{ iframeHeight }}px;
+          }
+        </style>
         <a ui-sref="projector" target="_blank">
           <div id="iframewrapper">
-            <iframe id="iframe" src="/projector" frameborder="0"></iframe>
+            <iframe id="iframe" src="/real-projector" frameborder="0"></iframe>
             <div id="iframeoverlay"></div>
           </div>
         </a>

openslides/core/static/templates/projector-container.html

@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html lang="en" class="no-js">
+<meta charset="utf-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<base href="/">
+<title>OpenSlides &ndash; Projector</title>
+<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0;">
+<link rel="stylesheet" href="static/css/openslides-libs.css">
+<link rel="stylesheet" href="static/css/projector.css">
+<link rel="icon" href="/static/img/favicon.png">
+<script src="static/js/openslides-libs.js"></script>
+
+<div ng-controller="ProjectorContainerCtrl" class="pContainer">
+  <div>
+    <style>
+      .pContainer #iframe {
+          width: {{ projectorWidth }}px;
+          height: {{ projectorHeight }}px;
+          -moz-transform: scale({{ scale }});
+          -webkit-transform: scale({{ scale }});
+          -o-transform: scale({{ scale }});
+          transform: scale({{ scale }});
+          /* IE8+ - must be on one line, unfortunately */
+          -ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11={{ scale }}, M12=0, M21=0, M22={{ scale }}, SizingMethod='auto expand')";
+      }
+
+      .pContainer #iframewrapper {
+          width: {{ iframeWidth }}px;
+          height: {{ iframeHeight }}px;
+      }
+
+      .pContainer #iframeoverlay {
+        width: {{ iframeWidth }}px;
+        height: {{ iframeHeight }}px;
+      }
+    </style>
+
+    <div id="iframewrapper">
+      <iframe id="iframe" src="/real-projector" frameborder="0"></iframe>
+      <div id="iframeoverlay"></div>
+    </div>
+  </div>
+</div>
+
+<script src="/angular_js/projector/"></script>

openslides/core/static/templates/projector.html

@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html lang="en" class="no-js">
 <meta charset="utf-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
 <base href="/">
 <title>OpenSlides &ndash; Projector</title>
 <link rel="stylesheet" href="static/css/openslides-libs.css">

openslides/core/urls.py

@@ -27,9 +27,12 @@ urlpatterns = [
         views.AppsJsView.as_view(),
         name='core_apps_js'),
 
-    # View for the projectors are handelt by angular.
+    # View for the projectors are handled by angular.
     url(r'^projector.*$', views.ProjectorView.as_view()),
 
+    # Original view without resolutioncontrol for the projectors are handled by angular.
+    url(r'^real-projector.*$', views.RealProjectorView.as_view()),
+
     # Main entry point for all angular pages.
     # Has to be the last entry in the urls.py
     url(r'^.*$', views.IndexView.as_view()),

openslides/core/views.py

@@ -66,6 +66,20 @@ class ProjectorView(utils_views.View):
     """
     The primary view for OpenSlides projector using AngularJS.
 
+    The projector container template is 'openslides/core/static/templates/projector-container.html'.
+    This container is for controlling the projector resolution.
+    """
+
+    def get(self, *args, **kwargs):
+        with open(finders.find('templates/projector-container.html')) as f:
+            content = f.read()
+        return HttpResponse(content)
+
+
+class RealProjectorView(utils_views.View):
+    """
+    The original view without resolutioncontrol for OpenSlides projector using AngularJS.
+
     The default base template is 'openslides/core/static/templates/projector.html'.
     You can override it by simply adding a custom 'templates/projector.html'
     file to the custom staticfiles directory. See STATICFILES_DIRS in
@@ -168,7 +182,7 @@ class ProjectorViewSet(ReadOnlyModelViewSet):
         elif self.action in ('metadata', 'list'):
             result = self.request.user.has_perm('core.can_see_projector')
         elif self.action in ('activate_elements', 'prune_elements', 'update_elements',
-                             'deactivate_elements', 'clear_elements', 'control_view'):
+                             'deactivate_elements', 'clear_elements', 'control_view', 'set_resolution'):
             result = (self.request.user.has_perm('core.can_see_projector') and
                       self.request.user.has_perm('core.can_manage_projector'))
         else:
@@ -314,6 +328,46 @@ class ProjectorViewSet(ReadOnlyModelViewSet):
         serializer.save()
         return Response(serializer.data)
 
+    @detail_route(methods=['post'])
+    def set_resolution(self, request, pk):
+        """
+        REST API operation to set the resolution.
+
+        It is actually unused, because the resolution is currently set in the config.
+        But with the multiprojector feature this will become importent to set the
+        resolution per projector individually.
+
+        It expects a POST request to
+        /rest/core/projector/<pk>/set_resolution/ with a dictionary with the width
+        and height and the values.
+
+        Example:
+
+        {
+            "width": "1024",
+            "height": "768"
+        }
+        """
+        if not isinstance(request.data, dict):
+            raise ValidationError({'detail': 'Data must be a dictionary.'})
+        if request.data.get('width') is None or request.data.get('height') is None:
+            raise ValidationError({'detail': 'A width and a height have to be given.'})
+        if not isinstance(request.data['width'], int) or not isinstance(request.data['height'], int):
+            raise ValidationError({'detail': 'Data has to be integers.'})
+        if (request.data['width'] < 800 or request.data['width'] > 3840 or
+                request.data['height'] < 600 or request.data['height'] > 2160):
+            raise ValidationError({'detail': 'The Resolution have to be between 800x600 and 3840x2160.'})
+
+        projector_instance = self.get_object()
+        projector_instance.width = request.data['width']
+        projector_instance.height = request.data['height']
+        projector_instance.save()
+
+        message = 'Changing resolution to {width}x{height} was successful.'.format(
+            width=request.data['width'],
+            height=request.data['height'])
+        return Response({'detail': message})
+
     @detail_route(methods=['post'])
     def control_view(self, request, pk):
         """

tests/integration/core/test_views.py

@@ -34,7 +34,9 @@ class ProjectorAPI(TestCase):
                      'uuid': 'aae4a07b26534cfb9af4232f361dce73',
                      'name': 'core/customslide'}},
             'scale': 0,
-            'scroll': 0})
+            'scroll': 0,
+            'width': 1024,
+            'height': 768})
 
     def test_invalid_slide_on_default_projector(self):
         self.client.login(username='admin', password='admin')
@@ -54,7 +56,9 @@ class ProjectorAPI(TestCase):
                      'uuid': 'fc6ef43b624043068c8e6e7a86c5a1b0',
                      'error': 'Projector element does not exist.'}},
             'scale': 0,
-            'scroll': 0})
+            'scroll': 0,
+            'width': 1024,
+            'height': 768})
 
 
 class VersionView(TestCase):