Add a legend to Layer View

cura/CuraApplication.py

@@ -315,6 +315,11 @@ class CuraApplication(QtApplication):
 
     showPrintMonitor = pyqtSignal(bool, arguments = ["show"])
 
+    def setViewLegendItems(self, items):
+        self.viewLegendItemsChanged.emit(items)
+
+    viewLegendItemsChanged = pyqtSignal("QVariantList", arguments = ["items"])
+
     ##  Cura has multiple locations where instance containers need to be saved, so we need to handle this differently.
     #
     #   Note that the AutoSave plugin also calls this method.

plugins/LayerView/LayerView.py

@@ -60,6 +60,8 @@ class LayerView(View):
         self._proxy = LayerViewProxy.LayerViewProxy()
         self._controller.getScene().getRoot().childrenChanged.connect(self._onSceneChanged)
 
+        self._legend_items = None
+
         Preferences.getInstance().addPreference("view/top_layer_count", 5)
         Preferences.getInstance().addPreference("view/only_show_top_layers", False)
         Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
@@ -206,6 +208,8 @@ class LayerView(View):
             self._old_composite_shader = self._composite_pass.getCompositeShader()
             self._composite_pass.setCompositeShader(self._layerview_composite_shader)
 
+            Application.getInstance().setViewLegendItems(self._getLegendItems())
+
         elif event.type == Event.ViewDeactivateEvent:
             self._wireprint_warning_message.hide()
             Application.getInstance().globalContainerStackChanged.disconnect(self._onGlobalStackChanged)
@@ -215,6 +219,8 @@ class LayerView(View):
             self._composite_pass.setLayerBindings(self._old_layer_bindings)
             self._composite_pass.setCompositeShader(self._old_composite_shader)
 
+            Application.getInstance().setViewLegendItems([])
+
     def _onGlobalStackChanged(self):
         if self._global_container_stack:
             self._global_container_stack.propertyChanged.disconnect(self._onPropertyChanged)
@@ -264,6 +270,24 @@ class LayerView(View):
 
         self._startUpdateTopLayers()
 
+    def _getLegendItems(self):
+        if self._legend_items is None:
+            theme = Application.getInstance().getTheme()
+            self._legend_items = [
+                {"color": theme.getColor("layerview_inset_0").name(), "title": catalog.i18nc("@label:layerview polygon type", "Outer Wall")}, # Inset0Type
+                {"color": theme.getColor("layerview_inset_x").name(), "title": catalog.i18nc("@label:layerview polygon type", "Inner Wall")}, # InsetXType
+                {"color": theme.getColor("layerview_skin").name(), "title": catalog.i18nc("@label:layerview polygon type", "Top / Bottom")}, # SkinType
+                {"color": theme.getColor("layerview_infill").name(), "title": catalog.i18nc("@label:layerview polygon type", "Infill")}, # InfillType
+                {"color": theme.getColor("layerview_support").name(), "title": catalog.i18nc("@label:layerview polygon type", "Support Skin")}, # SupportType
+                {"color": theme.getColor("layerview_support_infill").name(), "title": catalog.i18nc("@label:layerview polygon type", "Support Infill")}, # SupportInfillType
+                {"color": theme.getColor("layerview_support_interface").name(), "title": catalog.i18nc("@label:layerview polygon type", "Support Interface")},  # SupportInterfaceType
+                {"color": theme.getColor("layerview_skirt").name(), "title": catalog.i18nc("@label:layerview polygon type", "Build Plate Adhesion")}, # SkirtType
+                {"color": theme.getColor("layerview_move_combing").name(), "title": catalog.i18nc("@label:layerview polygon type", "Travel Move")}, # MoveCombingType
+                {"color": theme.getColor("layerview_move_retraction").name(), "title": catalog.i18nc("@label:layerview polygon type", "Retraction Move")}, # MoveRetractionType
+                #{"color": theme.getColor("layerview_none").name(), "title": catalog.i18nc("@label:layerview polygon type", "Unknown")} # NoneType
+            ]
+        return self._legend_items
+
 
 class _CreateTopLayersJob(Job):
     def __init__(self, scene, layer_number, solid_layers):

resources/qml/Cura.qml

@@ -306,6 +306,18 @@ UM.MainWindow
                 }
             }
 
+            Legend
+            {
+                id: legend
+                anchors
+                {
+                    top: parent.top
+                    topMargin: UM.Theme.getSize("default_margin").height
+                    right: sidebar.left
+                    rightMargin: UM.Theme.getSize("default_margin").width
+                }
+            }
+
             JobSpecs
             {
                 id: jobSpecs

resources/qml/Legend.qml

@@ -0,0 +1,66 @@
+// Copyright (c) 2015 Ultimaker B.V.
+// Cura is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.2
+import QtQuick.Controls 1.1
+import QtQuick.Controls.Styles 1.1
+import QtQuick.Layouts 1.1
+
+import UM 1.1 as UM
+import Cura 1.0 as Cura
+
+Rectangle {
+    id: base
+
+    UM.I18nCatalog { id: catalog; name:"cura"}
+
+    width: childrenRect.width
+    height: childrenRect.height
+    color: "transparent"
+
+    Connections
+    {
+        target: Printer
+        onViewLegendItemsChanged:
+        {
+            legendItemRepeater.model = items
+        }
+    }
+
+    Column
+    {
+        Repeater
+        {
+            id: legendItemRepeater
+
+            Item {
+                anchors.right: parent.right
+                height: childrenRect.height
+                width: childrenRect.width
+
+                Rectangle {
+                    id: swatch
+
+                    anchors.right: parent.right
+                    anchors.verticalCenter: label.verticalCenter
+                    height: UM.Theme.getSize("setting_control").height / 2
+                    width: height
+
+                    color: modelData.color
+                    border.width: UM.Theme.getSize("default_lining").width
+                    border.color: UM.Theme.getColor("text_subtext")
+                }
+                Label {
+                    id: label
+
+                    text: modelData.title
+                    font: UM.Theme.getFont("small")
+                    color: UM.Theme.getColor("text_subtext")
+
+                    anchors.right: swatch.left
+                    anchors.rightMargin: UM.Theme.getSize("default_margin").width / 2
+                }
+            }
+        }
+    }
+}