Make LayerView work with "Purge" line type

CURA-3094

In CuraEngine, we created a new line type called "Purge" to make Prime
Tower Purge work. This commit makes the LayerView plugin to handle
"Purge" lines correctly.

cura/LayerPolygon.py

@@ -18,10 +18,14 @@ class LayerPolygon:
     MoveCombingType = 8
     MoveRetractionType = 9
     SupportInterfaceType = 10
-    __number_of_types = 11
+    PurgeType = 11
+
+    __number_of_types = 12
+
+    __jump_map = numpy.logical_or(numpy.logical_or(numpy.arange(__number_of_types) == NoneType,
+                                                   numpy.arange(__number_of_types) == MoveCombingType),
+                                  numpy.arange(__number_of_types) == MoveRetractionType)
 
-    __jump_map = numpy.logical_or(numpy.logical_or(numpy.arange(__number_of_types) == NoneType, numpy.arange(__number_of_types) == MoveCombingType), numpy.arange(__number_of_types) == MoveRetractionType)
-    
     ##  LayerPolygon, used in ProcessSlicedLayersJob
     #   \param extruder
     #   \param line_types array with line_types
@@ -222,7 +226,8 @@ class LayerPolygon:
                 theme.getColor("layerview_support_infill").getRgbF(), # SupportInfillType
                 theme.getColor("layerview_move_combing").getRgbF(), # MoveCombingType
                 theme.getColor("layerview_move_retraction").getRgbF(), # MoveRetractionType
-                theme.getColor("layerview_support_interface").getRgbF()  # SupportInterfaceType
+                theme.getColor("layerview_support_interface").getRgbF(),  # SupportInterfaceType
+                theme.getColor("layerview_purge").getRgbF()  # PurgeType
             ])
 
         return cls.__color_map

plugins/LayerView/LayerPass.py

@@ -51,6 +51,7 @@ class LayerPass(RenderPass):
             self._layer_shader.setUniformValue("u_show_helpers", self._layer_view.getShowHelpers())
             self._layer_shader.setUniformValue("u_show_skin", self._layer_view.getShowSkin())
             self._layer_shader.setUniformValue("u_show_infill", self._layer_view.getShowInfill())
+            self._layer_shader.setUniformValue("u_show_purge", self._layer_view.getShowPurge())
         else:
             #defaults
             self._layer_shader.setUniformValue("u_layer_view_type", 1)
@@ -59,6 +60,7 @@ class LayerPass(RenderPass):
             self._layer_shader.setUniformValue("u_show_helpers", 1)
             self._layer_shader.setUniformValue("u_show_skin", 1)
             self._layer_shader.setUniformValue("u_show_infill", 1)
+            self._layer_shader.setUniformValue("u_show_purge", 1)
 
         if not self._tool_handle_shader:
             self._tool_handle_shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "toolhandle.shader"))

plugins/LayerView/LayerView.py

@@ -82,6 +82,7 @@ class LayerView(View):
         Preferences.getInstance().addPreference("layerview/show_helpers", True)
         Preferences.getInstance().addPreference("layerview/show_skin", True)
         Preferences.getInstance().addPreference("layerview/show_infill", True)
+        Preferences.getInstance().addPreference("layerview/show_purge", True)
 
         Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
         self._updateWithPreferences()
@@ -100,6 +101,7 @@ class LayerView(View):
         self._show_helpers = 1
         self._show_skin = 1
         self._show_infill = 1
+        self._show_purge = 1
 
     def getActivity(self):
         return self._activity
@@ -237,6 +239,13 @@ class LayerView(View):
     def getShowInfill(self):
         return self._show_infill
 
+    def setShowPurge(self, show):
+        self._show_purge = show
+        self.currentLayerNumChanged.emit()
+
+    def getShowPurge(self):
+        return self._show_purge
+
     def getCompatibilityMode(self):
         return self._compatibility_mode
 
@@ -408,6 +417,7 @@ class LayerView(View):
         self.setShowHelpers(bool(Preferences.getInstance().getValue("layerview/show_helpers")))
         self.setShowSkin(bool(Preferences.getInstance().getValue("layerview/show_skin")))
         self.setShowInfill(bool(Preferences.getInstance().getValue("layerview/show_infill")))
+        self.setShowPurge(bool(Preferences.getInstance().getValue("layerview/show_purge")))
 
         self._startUpdateTopLayers()
         self.preferencesChanged.emit()
@@ -423,6 +433,7 @@ class LayerView(View):
             "layerview/show_helpers",
             "layerview/show_skin",
             "layerview/show_infill",
+            "layerview/show_purge",
             }:
             return
 

plugins/LayerView/LayerView.qml

@@ -43,6 +43,7 @@ Item
             property bool show_helpers: UM.Preferences.getValue("layerview/show_helpers")
             property bool show_skin: UM.Preferences.getValue("layerview/show_skin")
             property bool show_infill: UM.Preferences.getValue("layerview/show_infill")
+            property bool show_purge: UM.Preferences.getValue("layerview/show_purge")
             // if we are in compatibility mode, we only show the "line type"
             property bool show_legend: UM.LayerView.compatibilityMode ? 1 : UM.Preferences.getValue("layerview/layer_view_type") == 1
             property bool only_show_top_layers: UM.Preferences.getValue("view/only_show_top_layers")
@@ -157,6 +158,7 @@ Item
                     view_settings.show_helpers = UM.Preferences.getValue("layerview/show_helpers");
                     view_settings.show_skin = UM.Preferences.getValue("layerview/show_skin");
                     view_settings.show_infill = UM.Preferences.getValue("layerview/show_infill");
+                    view_settings.show_purge = UM.Preferences.getValue("layerview/show_purge");
                     view_settings.only_show_top_layers = UM.Preferences.getValue("view/only_show_top_layers");
                     view_settings.top_layer_count = UM.Preferences.getValue("view/top_layer_count");
                 }
@@ -219,6 +221,12 @@ Item
                             preference: "layerview/show_infill",
                             colorId:  "layerview_infill"
                         });
+                        typesLegenModel.append({
+                            label: catalog.i18nc("@label", "Show Purge"),
+                            initialValue: view_settings.show_purge,
+                            preference: "layerview/show_purge",
+                            colorId:  "layerview_purge"
+                        });
                     }
                 }
 

plugins/LayerView/layers.shader

@@ -35,6 +35,7 @@ fragment =
     uniform int u_show_helpers;
     uniform int u_show_skin;
     uniform int u_show_infill;
+    uniform int u_show_purge;
 
     void main()
     {
@@ -62,6 +63,11 @@ fragment =
             // discard movements
             discard;
         }
+        // purge:
+        if ((u_show_purge == 0) && (v_line_type >= 10.5) && (v_line_type <= 11.5)) {
+            // discard movements
+            discard;
+        }
 
         gl_FragColor = v_color;
     }
@@ -103,6 +109,7 @@ fragment41core =
     uniform int u_show_helpers;
     uniform int u_show_skin;
     uniform int u_show_infill;
+    uniform int u_show_purge;
 
     void main()
     {
@@ -130,6 +137,11 @@ fragment41core =
             // discard movements
             discard;
         }
+        // purge:
+        if ((u_show_purge == 0) && (v_line_type >= 10.5) && (v_line_type <= 11.5)) {
+            // discard movements
+            discard;
+        }
 
         frag_color = v_color;
     }
@@ -144,6 +156,7 @@ u_show_travel_moves = 0
 u_show_helpers = 1
 u_show_skin = 1
 u_show_infill = 1
+u_show_purge = 1
 
 [bindings]
 u_modelViewProjectionMatrix = model_view_projection_matrix

plugins/LayerView/layers3d.shader

@@ -71,6 +71,7 @@ geometry41core =
     uniform int u_show_helpers;
     uniform int u_show_skin;
     uniform int u_show_infill;
+    uniform int u_show_purge;
 
     layout(lines) in;
     layout(triangle_strip, max_vertices = 26) out;
@@ -125,6 +126,9 @@ geometry41core =
         if ((u_show_infill == 0) && (v_line_type[0] == 6)) {
             return;
         }
+        if ((u_show_purge == 0) && (v_line_type[0] == 11)) {
+            return;
+        }
 
         if ((v_line_type[0] == 8) || (v_line_type[0] == 9)) {
             // fixed size for movements
@@ -246,6 +250,7 @@ u_show_travel_moves = 0
 u_show_helpers = 1
 u_show_skin = 1
 u_show_infill = 1
+u_show_purge = 1
 
 [bindings]
 u_modelViewProjectionMatrix = model_view_projection_matrix

resources/themes/cura/theme.json

@@ -246,7 +246,8 @@
         "layerview_support_infill": [0,  255,  255, 255],
         "layerview_move_combing": [0,  0,  255, 255],
         "layerview_move_retraction": [128,  128,  255, 255],
-        "layerview_support_interface": [64, 192, 255, 255]
+        "layerview_support_interface": [64, 192, 255, 255],
+        "layerview_purge": [101, 51, 175, 255]
     },
 
     "sizes": {
@@ -306,7 +307,7 @@
         "slider_layerview_background": [4.0, 0.0],
         "slider_layerview_margin": [1.0, 1.0],
 
-        "layerview_menu_size": [16.5, 21.0],
+        "layerview_menu_size": [16.5, 23.0],
         "layerview_menu_size_compatibility": [22, 23.0],
         "layerview_legend_size": [1.0, 1.0],
         "layerview_row": [11.0, 1.5],