Add buttons to select the extruder for the selection to the toolbar

Contributes to CURA-3577

resources/qml/ExtruderButton.qml

@@ -0,0 +1,86 @@
+// Copyright (c) 2017 Ultimaker B.V.
+// Cura is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.2
+import QtQuick.Controls 1.1
+
+import UM 1.2 as UM
+import Cura 1.0 as Cura
+
+Button
+{
+    id: base
+
+    property var extruder;
+
+    text: catalog.i18ncp("@label", "Print Selected Model with %1", "Print Selected Models With %1", UM.Selection.selectionCount).arg(extruder.name)
+
+    style: UM.Theme.styles.tool_button;
+    iconSource: checked ? UM.Theme.getIcon("material_selected") : UM.Theme.getIcon("material_not_selected");
+
+    checkable: true;
+    checked: ExtruderManager.selectedObjectExtruders.indexOf(extruder.id) != -1
+    enabled: UM.Selection.hasSelection
+
+    property color customColor: base.hovered ? UM.Theme.getColor("button_hover") : UM.Theme.getColor("button");
+
+    Rectangle
+    {
+        anchors.fill: parent
+        anchors.margins: UM.Theme.getSize("default_lining").width;
+
+        color: "transparent"
+
+        border.width: base.checked ? UM.Theme.getSize("default_lining").width : 0;
+        border.color: UM.Theme.getColor("button_text")
+    }
+
+    Item
+    {
+        anchors
+        {
+            right: parent.right;
+            top: parent.top;
+            margins: UM.Theme.getSize("default_lining").width * 3
+        }
+        width: UM.Theme.getSize("default_margin").width
+        height: UM.Theme.getSize("default_margin").height
+
+        Text
+        {
+            anchors.centerIn: parent;
+            text: index + 1;
+            color: parent.enabled ? UM.Theme.getColor("button_text") : UM.Theme.getColor("button_disabled_text")
+            font: UM.Theme.getFont("default_bold");
+        }
+    }
+
+    Rectangle
+    {
+        anchors
+        {
+            left: parent.left;
+            top: parent.top;
+            margins: UM.Theme.getSize("default_lining").width * 3
+        }
+
+        color: model.color
+
+        width: UM.Theme.getSize("default_margin").width
+        height: UM.Theme.getSize("default_margin").height
+
+        border.width: UM.Theme.getSize("default_lining").width
+        border.color: UM.Theme.getColor("lining");
+    }
+
+    // See line 51, same workaround
+    MouseArea
+    {
+        anchors.fill: parent;
+        onClicked:
+        {
+            forceActiveFocus() //First grab focus, so all the text fields are updated
+            CuraActions.setExtruderForSelection(extruder.id);
+        }
+    }
+}

resources/qml/Toolbar.qml

@@ -6,7 +6,8 @@ import QtQuick.Controls 1.1
 import QtQuick.Controls.Styles 1.1
 import QtQuick.Layouts 1.1
 
-import UM 1.0 as UM
+import UM 1.2 as UM
+import Cura 1.0 as Cura
 
 Item
 {
@@ -67,6 +68,14 @@ Item
                 }
             }
         }
+
+        Item { height: UM.Theme.getSize("default_margin").height; width: 1; visible: machineExtruderCount.properties.value > 1 }
+
+        Repeater
+        {
+            model: Cura.ExtrudersModel { id: extrudersModel }
+            ExtruderButton { extruder: model }
+        }
     }
 
     UM.PointingRectangle
@@ -147,4 +156,15 @@ Item
 
         visible: toolHint.text != "";
     }
+
+    UM.SettingPropertyProvider
+    {
+        id: machineExtruderCount
+
+        containerStackId: Cura.MachineManager.activeMachineId
+        key: "machine_extruder_count"
+        watchedProperties: [ "value" ]
+    }
+
+    UM.I18nCatalog { id: catalog; name: "cura" }
 }