Merge branch 'master' of github.com:Ultimaker/Cura

cura/Settings/MachineManager.py

@@ -873,7 +873,8 @@ class MachineManager(QObject):
         if old_container:
             old_container.nameChanged.disconnect(self._onQualityNameChanged)
         else:
-            Logger.log("w", "Could not find old "+  container.getMetaDataEntry("type") + " while changing active " + container.getMetaDataEntry("type") + ".")
+            Logger.log("e", "Could not find container of type %s in stack %s while replacing quality (changes) with container %s", container.getMetaDataEntry("type"), stack.getId(), container.getId())
+            return
 
         # Swap in the new container into the stack.
         stack.replaceContainer(stack.getContainerIndex(old_container), container, postpone_emit = postpone_emit)

plugins/3MFReader/ThreeMFWorkspaceReader.py

@@ -307,7 +307,15 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
                 if container_stacks:
                     stack = container_stacks[0]
                     if self._resolve_strategies["machine"] == "override":
+                        # TODO: HACK
+                        # There is a machine, check if it has authenticationd data. If so, keep that data.
+                        network_authentication_id = container_stacks[0].getMetaDataEntry("network_authentication_id")
+                        network_authentication_key = container_stacks[0].getMetaDataEntry("network_authentication_key")
                         container_stacks[0].deserialize(archive.open(container_stack_file).read().decode("utf-8"))
+                        if network_authentication_id:
+                            container_stacks[0].addMetaDataEntry("network_authentication_id", network_authentication_id)
+                        if network_authentication_key:
+                            container_stacks[0].addMetaDataEntry("network_authentication_key", network_authentication_key)
                     elif self._resolve_strategies["machine"] == "new":
                         new_id = self.getNewId(container_id)
                         stack = ContainerStack(new_id)

plugins/3MFReader/WorkspaceDialog.qml

@@ -10,7 +10,7 @@ import UM 1.1 as UM
 
 UM.Dialog
 {
-    title: catalog.i18nc("@title:window", "Import Project")
+    title: catalog.i18nc("@title:window", "Open Project")
 
     width: 550
     minimumWidth: 550

plugins/3MFReader/__init__.py

@@ -25,7 +25,7 @@ def getMetaData():
         "workspace_reader":
         [
             {
-                "extension": "3mf",
+                "extension": "curaproject.3mf",
                 "description": catalog.i18nc("@item:inlistbox", "3MF File")
             }
         ]

plugins/3MFWriter/ThreeMFWorkspaceWriter.py

@@ -2,9 +2,11 @@ from UM.Workspace.WorkspaceWriter import WorkspaceWriter
 from UM.Application import Application
 from UM.Preferences import Preferences
 from UM.Settings.ContainerRegistry import ContainerRegistry
+from UM.Settings.ContainerStack import ContainerStack
 from cura.Settings.ExtruderManager import ExtruderManager
 import zipfile
 from io import StringIO
+import copy
 
 
 class ThreeMFWorkspaceWriter(WorkspaceWriter):
@@ -74,5 +76,14 @@ class ThreeMFWorkspaceWriter(WorkspaceWriter):
         file_in_archive = zipfile.ZipInfo(file_name)
         # For some reason we have to set the compress type of each file as well (it doesn't keep the type of the entire archive)
         file_in_archive.compress_type = zipfile.ZIP_DEFLATED
+        if type(container) == ContainerStack and (container.getMetaDataEntry("network_authentication_id") or container.getMetaDataEntry("network_authentication_key")):
+            # TODO: Hack
+            # Create a shallow copy of the container, so we can filter out the network auth (if any)
+            container_copy = copy.deepcopy(container)
+            container_copy.removeMetaDataEntry("network_authentication_id")
+            container_copy.removeMetaDataEntry("network_authentication_key")
+            serialized_data = container_copy.serialize()
+        else:
+            serialized_data = container.serialize()
 
-        archive.writestr(file_in_archive, container.serialize())
+        archive.writestr(file_in_archive, serialized_data)

plugins/3MFWriter/__init__.py

@@ -26,9 +26,9 @@ def getMetaData():
         },
         "workspace_writer": {
             "output": [{
-                "extension": "3mf",
+                "extension": "curaproject.3mf",
-                "description": i18n_catalog.i18nc("@item:inlistbox", "3MF file"),
+                "description": i18n_catalog.i18nc("@item:inlistbox", "Cura Project 3MF file"),
-                "mime_type": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml",
+                "mime_type": "application/x-curaproject+xml",
                 "mode": ThreeMFWorkspaceWriter.ThreeMFWorkspaceWriter.OutputMode.BinaryMode
             }]
         }

resources/definitions/fdmprinter.def.json

@@ -228,13 +228,23 @@
                 "machine_heat_zone_length":
                 {
                     "label": "Heat zone length",
-                    "description": "The distance from the tip of the nozzle in which heat from the nozzle is transfered to the filament.",
+                    "description": "The distance from the tip of the nozzle in which heat from the nozzle is transferred to the filament.",
                     "default_value": 16,
                     "type": "float",
                     "settable_per_mesh": false,
                     "settable_per_extruder": true,
                     "settable_per_meshgroup": false
                 },
+                "machine_cool_zone_length":
+                {
+                    "label": "Cool Zone Length",
+                    "description": "The length of the piece that dissipates heat from the hot end to shield heat-sensitive equipment.",
+                    "default_value": 0,
+                    "type": "float",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true,
+                    "settable_per_meshgroup": false
+                },
                 "machine_nozzle_heat_up_speed":
                 {
                     "label": "Heat up speed",
@@ -990,7 +1000,7 @@
                     "unit": "mm",
                     "type": "float",
                     "default_value": 100.0,
-                    "value": "machine_depth / 2",
+                    "value": "machine_depth * 3",
                     "enabled": "z_seam_type == 'back'",
                     "settable_per_mesh": true
                 },

resources/definitions/ultimaker3.def.json

@@ -38,6 +38,7 @@
         "machine_depth": { "default_value": 215 },
         "machine_height": { "default_value": 200 },
         "machine_heated_bed": { "default_value": true },
+        "machine_cool_zone_length": { "default_value": 26.5 },
         "machine_nozzle_heat_up_speed": { "default_value": 1.4 },
         "machine_nozzle_cool_down_speed": { "default_value": 0.8 },
         "machine_head_with_fans_polygon":

resources/qml/Actions.qml

@@ -290,7 +290,7 @@ Item
     Action
     {
         id: loadWorkspaceAction
-        text: catalog.i18nc("@action:inmenu menubar:file","&Open project...");
+        text: catalog.i18nc("@action:inmenu menubar:file","&Open Project...");
     }
 
     Action

resources/qml/SidebarSimple.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2015 Ultimaker B.V.
+// Copyright (c) 2016 Ultimaker B.V.
 // Cura is released under the terms of the AGPLv3 or higher.
 
 import QtQuick 2.2
@@ -25,17 +25,19 @@ Item
     Component.onDestruction: PrintInformation.enabled = false
     UM.I18nCatalog { id: catalog; name:"cura"}
 
-    Rectangle{
+    Rectangle
+    {
         id: infillCellLeft
         anchors.top: parent.top
         anchors.left: parent.left
         width: base.width / 100 * 35 - UM.Theme.getSize("default_margin").width
         height: childrenRect.height
 
-        Label{
+        Label
+        {
             id: infillLabel
             //: Infill selection label
-            text: catalog.i18nc("@label", "Infill:");
+            text: catalog.i18nc("@label", "Infill");
             font: UM.Theme.getFont("default");
             color: UM.Theme.getColor("text");
             anchors.top: parent.top
@@ -45,7 +47,8 @@ Item
         }
     }
 
-    Flow {
+    Flow
+    {
         id: infillCellRight
 
         height: childrenRect.height;
@@ -55,9 +58,11 @@ Item
         anchors.left: infillCellLeft.right
         anchors.top: infillCellLeft.top
 
-        Repeater {
+        Repeater
+        {
             id: infillListView
-            property int activeIndex: {
+            property int activeIndex:
+            {
                 var density = parseInt(infillDensity.properties.value)
                 for(var i = 0; i < infillModel.count; ++i)
                 {
@@ -71,17 +76,20 @@ Item
             }
             model: infillModel;
 
-            Item {
+            Item
+            {
                 width: childrenRect.width;
                 height: childrenRect.height;
 
-                Rectangle{
+                Rectangle
+                {
                     id: infillIconLining
 
                     width: (infillCellRight.width - 3 * UM.Theme.getSize("default_margin").width) / 4;
                     height: width
 
-                    border.color: {
+                    border.color:
+                    {
                         if(!base.settingsEnabled)
                         {
                             return UM.Theme.getColor("setting_control_disabled_border")
@@ -97,7 +105,8 @@ Item
                         return UM.Theme.getColor("setting_control_border")
                     }
                     border.width: UM.Theme.getSize("default_lining").width
-                    color: {
+                    color:
+                    {
                         if(infillListView.activeIndex == index)
                         {
                             if(!base.settingsEnabled)
@@ -109,7 +118,8 @@ Item
                         return "transparent"
                     }
 
-                    UM.RecolorImage {
+                    UM.RecolorImage
+                    {
                         id: infillIcon
                         anchors.fill: parent;
                         anchors.margins: UM.Theme.getSize("infill_button_margin").width
@@ -130,7 +140,8 @@ Item
                         }
                     }
 
-                    MouseArea {
+                    MouseArea
+                    {
                         id: infillMouseArea
                         anchors.fill: parent
                         hoverEnabled: true
@@ -141,15 +152,18 @@ Item
                                 infillDensity.setPropertyValue("value", model.percentage)
                             }
                         }
-                        onEntered: {
+                        onEntered:
+                        {
                             base.showTooltip(infillCellRight, Qt.point(-infillCellRight.x, 0), model.text);
                         }
-                        onExited: {
+                        onExited:
+                        {
                             base.hideTooltip();
                         }
                     }
                 }
-                Label{
+                Label
+                {
                     id: infillLabel
                     font: UM.Theme.getFont("default")
                     anchors.top: infillIconLining.bottom
@@ -160,7 +174,8 @@ Item
             }
         }
 
-        ListModel {
+        ListModel
+        {
             id: infillModel
 
             Component.onCompleted:
@@ -201,7 +216,8 @@ Item
         }
     }
 
-    Rectangle {
+    Rectangle
+    {
         id: helpersCell
         anchors.top: infillCellRight.bottom
         anchors.topMargin: UM.Theme.getSize("default_margin").height
@@ -209,34 +225,182 @@ Item
         anchors.right: parent.right
         height: childrenRect.height
 
-        Label{
+        Label
-            id: adhesionHelperLabel
+        {
+            id: enableSupportLabel
             anchors.left: parent.left
             anchors.leftMargin: UM.Theme.getSize("default_margin").width
-            anchors.verticalCenter: adhesionCheckBox.verticalCenter
+            anchors.verticalCenter: enableSupportCheckBox.verticalCenter
-            width: parent.width / 100 * 35 - 3 * UM.Theme.getSize("default_margin").width
+            width: parent.width / 100 * 45 - 3 * UM.Theme.getSize("default_margin").width
-            //: Bed adhesion label
+            text: catalog.i18nc("@label", "Enable Support");
-            text: catalog.i18nc("@label", "Helper Parts:");
             font: UM.Theme.getFont("default");
             color: UM.Theme.getColor("text");
         }
 
-        CheckBox{
+        CheckBox
+        {
+            id: enableSupportCheckBox
+            anchors.top: parent.top
+            anchors.left: enableSupportLabel.right
+            anchors.leftMargin: UM.Theme.getSize("default_margin").width
+
+            style: UM.Theme.styles.checkbox;
+            enabled: base.settingsEnabled
+
+            checked: supportEnabled.properties.value == "True";
+
+            MouseArea
+            {
+                id: enableSupportMouseArea
+                anchors.fill: parent
+                hoverEnabled: true
+                enabled: true
+                onClicked:
+                {
+                    // The value is a string "True" or "False"
+                    supportEnabled.setPropertyValue("value", supportEnabled.properties.value != "True");
+                }
+                onEntered:
+                {
+                    base.showTooltip(enableSupportCheckBox, Qt.point(-enableSupportCheckBox.x, 0),
+                        catalog.i18nc("@label", supportEnabled.properties.description));
+                }
+                onExited:
+                {
+                    base.hideTooltip();
+                }
+            }
+        }
+
+        Label
+        {
+            id: supportExtruderLabel
+            visible: (supportEnabled.properties.value == "True") && (machineExtruderCount.properties.value > 1)
+            anchors.left: parent.left
+            anchors.leftMargin: UM.Theme.getSize("default_margin").width
+            anchors.verticalCenter: supportExtruderCombobox.verticalCenter
+            width: parent.width / 100 * 45 - 3 * UM.Theme.getSize("default_margin").width
+            text: catalog.i18nc("@label", "Support Extruder");
+            font: UM.Theme.getFont("default");
+            color: UM.Theme.getColor("text");
+        }
+
+        ComboBox
+        {
+            id: supportExtruderCombobox
+            visible: (supportEnabled.properties.value == "True") && (machineExtruderCount.properties.value > 1)
+            model: extruderModel
+
+            property string color_override: ""  // for manually setting values
+            property string color:  // is evaluated automatically, but the first time is before extruderModel being filled
+            {
+                var current_extruder = extruderModel.get(currentIndex);
+                color_override = "";
+                if (current_extruder === undefined) {
+                    return "";
+                }
+                var model_color = current_extruder.color;
+                return (model_color) ? model_color : "";
+            }
+
+            textRole: 'text'  // this solves that the combobox isn't populated in the first time Cura is started
+
+            anchors.top: enableSupportCheckBox.bottom
+            anchors.topMargin:
+            {
+                if ((supportEnabled.properties.value == "True") && (machineExtruderCount.properties.value > 1))
+                {
+                    return UM.Theme.getSize("default_margin").height;
+                }
+                else
+                {
+                    return 0;
+                }
+            }
+            anchors.left: supportExtruderLabel.right
+            anchors.leftMargin: UM.Theme.getSize("default_margin").width
+            width: parent.width / 100 * 55
+            height:
+            {
+                if ((supportEnabled.properties.value == "True") && (machineExtruderCount.properties.value > 1))
+                {
+                    // default height when control is enabled
+                    return UM.Theme.getSize("setting_control").height;
+                }
+                else
+                {
+                    return 0;
+                }
+            }
+
+            style: UM.Theme.styles.combobox_color
+            enabled: base.settingsEnabled
+            property alias _hovered: supportExtruderMouseArea.containsMouse
+
+            currentIndex: parseFloat(supportExtruderNr.properties.value)
+            onActivated:
+            {
+                // Send the extruder nr as a string.
+                supportExtruderNr.setPropertyValue("value", String(index));
+            }
+            MouseArea
+            {
+                id: supportExtruderMouseArea
+                anchors.fill: parent
+                hoverEnabled: true
+                enabled: base.settingsEnabled
+                acceptedButtons: Qt.NoButton
+                onEntered:
+                {
+                    base.showTooltip(supportExtruderCombobox, Qt.point(-supportExtruderCombobox.x, 0),
+                        catalog.i18nc("@label", "Select which extruder to use for support. This will build up supporting structures below the model to prevent the model from sagging or printing in mid air."));
+                }
+                onExited:
+                {
+                    base.hideTooltip();
+                }
+            }
+
+            function updateCurrentColor()
+            {
+                var current_extruder = extruderModel.get(currentIndex);
+                if (current_extruder !== undefined) {
+                    supportExtruderCombobox.color_override = current_extruder.color;
+                }
+            }
+
+        }
+
+        Label
+        {
+            id: adhesionHelperLabel
+            anchors.left: parent.left
+            anchors.leftMargin: UM.Theme.getSize("default_margin").width
+            anchors.verticalCenter: adhesionCheckBox.verticalCenter
+            width: parent.width / 100 * 45 - 3 * UM.Theme.getSize("default_margin").width
+            text: catalog.i18nc("@label", "Build Plate Adhesion");
+            font: UM.Theme.getFont("default");
+            color: UM.Theme.getColor("text");
+        }
+
+        CheckBox
+        {
             id: adhesionCheckBox
             property alias _hovered: adhesionMouseArea.containsMouse
 
-            anchors.top: parent.top
+            anchors.top: supportExtruderCombobox.bottom
+            anchors.topMargin: UM.Theme.getSize("default_margin").height
             anchors.left: adhesionHelperLabel.right
             anchors.leftMargin: UM.Theme.getSize("default_margin").width
 
             //: Setting enable printing build-plate adhesion helper checkbox
-            text: catalog.i18nc("@option:check", "Print Build Plate Adhesion");
             style: UM.Theme.styles.checkbox;
             enabled: base.settingsEnabled
 
             checked: platformAdhesionType.properties.value != "skirt"
 
-            MouseArea {
+            MouseArea
+            {
                 id: adhesionMouseArea
                 anchors.fill: parent
                 hoverEnabled: true
@@ -269,99 +433,8 @@ Item
             }
         }
 
-        Label{
+        ListModel
-            id: supportHelperLabel
+        {
-            anchors.left: parent.left
-            anchors.leftMargin: UM.Theme.getSize("default_margin").width
-            anchors.verticalCenter: supportCheckBox.verticalCenter
-            width: parent.width / 100 * 35 - 3 * UM.Theme.getSize("default_margin").width
-            //: Support label
-            text: "";
-            font: UM.Theme.getFont("default");
-            color: UM.Theme.getColor("text");
-        }
-
-        CheckBox{
-            id: supportCheckBox
-            visible: machineExtruderCount.properties.value <= 1
-            property alias _hovered: supportMouseArea.containsMouse
-
-            anchors.top: adhesionCheckBox.bottom
-            anchors.topMargin: UM.Theme.getSize("default_margin").height
-            anchors.left: supportHelperLabel.right
-            anchors.leftMargin: UM.Theme.getSize("default_margin").width
-
-            //: Setting enable support checkbox
-            text: catalog.i18nc("@option:check", "Print Support Structure");
-            style: UM.Theme.styles.checkbox;
-            enabled: base.settingsEnabled
-
-            checked: supportEnabled.properties.value == "True"
-            MouseArea {
-                id: supportMouseArea
-                anchors.fill: parent
-                hoverEnabled: true
-                enabled: base.settingsEnabled
-                onClicked:
-                {
-                    supportEnabled.setPropertyValue("value", !parent.checked)
-                }
-                onEntered:
-                {
-                    base.showTooltip(supportCheckBox, Qt.point(-supportCheckBox.x, 0),
-                        catalog.i18nc("@label", "Enable printing support structures. This will build up supporting structures below the model to prevent the model from sagging or printing in mid air."));
-                }
-                onExited:
-                {
-                    base.hideTooltip();
-                }
-            }
-        }
-
-        ComboBox {
-            id: supportExtruderCombobox
-            visible: machineExtruderCount.properties.value > 1
-            model: extruderModel
-
-            anchors.top: adhesionCheckBox.bottom
-            anchors.topMargin: UM.Theme.getSize("default_margin").height
-            anchors.left: supportHelperLabel.right
-            anchors.leftMargin: UM.Theme.getSize("default_margin").width
-            width: parent.width / 100 * 65
-
-            style: UM.Theme.styles.combobox
-            enabled: base.settingsEnabled
-            property alias _hovered: supportExtruderMouseArea.containsMouse
-
-            currentIndex: supportEnabled.properties.value == "True" ? parseFloat(supportExtruderNr.properties.value) + 1 : 0
-            onActivated: {
-                if(index==0) {
-                    supportEnabled.setPropertyValue("value", false);
-                } else {
-                    supportEnabled.setPropertyValue("value", true);
-                    // Send the extruder nr as a string.
-                    supportExtruderNr.setPropertyValue("value", String(index - 1));
-                }
-            }
-            MouseArea {
-                id: supportExtruderMouseArea
-                anchors.fill: parent
-                hoverEnabled: true
-                enabled: base.settingsEnabled
-                acceptedButtons: Qt.NoButton
-                onEntered:
-                {
-                    base.showTooltip(supportExtruderCombobox, Qt.point(-supportExtruderCombobox.x, 0),
-                        catalog.i18nc("@label", "Select which extruder to use for support. This will build up supporting structures below the model to prevent the model from sagging or printing in mid air."));
-                }
-                onExited:
-                {
-                    base.hideTooltip();
-                }
-            }
-        }
-
-        ListModel {
             id: extruderModel
             Component.onCompleted: populateExtruderModel()
         }
@@ -377,19 +450,18 @@ Item
     function populateExtruderModel()
     {
         extruderModel.clear();
-        extruderModel.append({
+        for(var extruderNumber = 0; extruderNumber < extruders.rowCount() ; extruderNumber++)
-            text: catalog.i18nc("@label", "Don't print support"),
+        {
-            color: ""
-        })
-        for(var extruderNumber = 0; extruderNumber < extruders.rowCount() ; extruderNumber++) {
             extruderModel.append({
-                text: catalog.i18nc("@label", "Print support using %1").arg(extruders.getItem(extruderNumber).name),
+                text: extruders.getItem(extruderNumber).name,
                 color: extruders.getItem(extruderNumber).color
             })
         }
+        supportExtruderCombobox.updateCurrentColor();
     }
 
-    Rectangle {
+    Rectangle
+    {
         id: tipsCell
         anchors.top: helpersCell.bottom
         anchors.topMargin: UM.Theme.getSize("default_margin").height
@@ -397,7 +469,8 @@ Item
         width: parent.width
         height: childrenRect.height
 
-        Label{
+        Label
+        {
             anchors.left: parent.left
             anchors.leftMargin: UM.Theme.getSize("default_margin").width
             anchors.right: parent.right
@@ -438,7 +511,7 @@ Item
 
         containerStackId: Cura.MachineManager.activeMachineId
         key: "support_enable"
-        watchedProperties: [ "value" ]
+        watchedProperties: [ "value", "description" ]
         storeIndex: 0
     }
 

resources/themes/cura/styles.qml

@@ -411,6 +411,80 @@ QtObject {
         }
     }
 
+    // Combobox with items with colored rectangles
+    property Component combobox_color: Component {
+        ComboBoxStyle
+        {
+            background: Rectangle
+            {
+                color:
+                {
+                    if (!enabled)
+                    {
+                        return UM.Theme.getColor("setting_control_disabled");
+                    }
+                    if(control.hovered)
+                    {
+                        return UM.Theme.getColor("setting_control_highlight");
+                    }
+                    else
+                    {
+                        return UM.Theme.getColor("setting_control");
+                    }
+                }
+                border.width: UM.Theme.getSize("default_lining").width
+                border.color: !enabled ? UM.Theme.getColor("setting_control_disabled_border") : control.hovered ? UM.Theme.getColor("setting_control_border_highlight") : UM.Theme.getColor("setting_control_border")
+            }
+            label: Item
+            {
+                Rectangle
+                {
+                    id: swatch
+                    height: UM.Theme.getSize("setting_control").height / 2
+                    width: height
+                    anchors.left: parent.left
+                    anchors.leftMargin: UM.Theme.getSize("default_lining").width
+                    anchors.verticalCenter: parent.verticalCenter
+
+                    color: if (control.color_override != "") {return control.color_override} else {return control.color;}
+                    border.width: UM.Theme.getSize("default_lining").width
+                    border.color: !enabled ? UM.Theme.getColor("setting_control_disabled_border") : UM.Theme.getColor("setting_control_border")
+                }
+                Label
+                {
+                    anchors.left: swatch.right
+                    anchors.leftMargin: UM.Theme.getSize("default_lining").width
+                    anchors.right: downArrow.left
+                    anchors.rightMargin: UM.Theme.getSize("default_lining").width
+                    anchors.verticalCenter: parent.verticalCenter
+
+                    text: control.currentText
+                    font: UM.Theme.getFont("default")
+                    color: !enabled ? UM.Theme.getColor("setting_control_disabled_text") : UM.Theme.getColor("setting_control_text")
+
+                    elide: Text.ElideRight
+                    verticalAlignment: Text.AlignVCenter
+                }
+
+                UM.RecolorImage
+                {
+                    id: downArrow
+                    anchors.right: parent.right
+                    anchors.rightMargin: UM.Theme.getSize("default_lining").width * 2
+                    anchors.verticalCenter: parent.verticalCenter
+
+                    source: UM.Theme.getIcon("arrow_bottom")
+                    width: UM.Theme.getSize("standard_arrow").width
+                    height: UM.Theme.getSize("standard_arrow").height
+                    sourceSize.width: width + 5
+                    sourceSize.height: width + 5
+
+                    color: UM.Theme.getColor("setting_control_text")
+                }
+            }
+        }
+    }
+
     property Component checkbox: Component {
         CheckBoxStyle {
             background: Item { }