WIP second slider LayerView

plugins/LayerView/LayerPass.py

@@ -81,6 +81,8 @@ class LayerPass(RenderPass):
                     for layer, counts in element_counts.items():
                         if layer > self._layer_view._current_layer_num:
                             break
+                        if self._layer_view._minimum_layer_num > layer:
+                            start += counts
                         end += counts
 
                     # This uses glDrawRangeElements internally to only draw a certain range of lines.

plugins/LayerView/LayerView.py

@@ -41,6 +41,7 @@ class LayerView(View):
 
         self._max_layers = 0
         self._current_layer_num = 0
+        self._minimum_layer_num = 0
         self._current_layer_mesh = None
         self._current_layer_jumps = None
         self._top_layers_job = None
@@ -94,6 +95,9 @@ class LayerView(View):
     def getCurrentLayer(self):
         return self._current_layer_num
 
+    def getMinimumLayer(self):
+        return self._minimum_layer_num
+
     def _onSceneChanged(self, node):
         self.calculateMaxLayers()
 
@@ -144,6 +148,18 @@ class LayerView(View):
 
             self.currentLayerNumChanged.emit()
 
+    def setMinimumLayer(self, value):
+        if self._minimum_layer_num != value:
+            self._minimum_layer_num = value
+            if self._minimum_layer_num < 0:
+                self._minimum_layer_num = 0
+            if self._minimum_layer_num > self._current_layer_num:
+                self._minimum_layer_num = self._current_layer_num
+
+            self._startUpdateTopLayers()
+
+            self.currentLayerNumChanged.emit()
+
     def setLayerViewType(self, layer_view_type):
         self._layer_view_type = layer_view_type
         self.currentLayerNumChanged.emit()

plugins/LayerView/LayerView.qml

@@ -13,13 +13,33 @@ Item
     width: UM.Theme.getSize("button").width
     height: UM.Theme.getSize("slider_layerview_size").height
 
+    Slider
+    {
+        id: slider2
+        width: UM.Theme.getSize("slider_layerview_size").width
+        height: UM.Theme.getSize("slider_layerview_size").height
+        anchors.left: parent.left
+        anchors.leftMargin: UM.Theme.getSize("slider_layerview_margin").width * 0.2
+        orientation: Qt.Vertical
+        minimumValue: 0;
+        maximumValue: UM.LayerView.numLayers;
+        stepSize: 1
+
+        property real pixelsPerStep: ((height - UM.Theme.getSize("slider_handle").height) / (maximumValue - minimumValue)) * stepSize;
+
+        value: UM.LayerView.minimumLayer
+        onValueChanged: UM.LayerView.setMinimumLayer(value)
+
+        style: UM.Theme.styles.slider;
+    }
+
     Slider
     {
         id: slider
         width: UM.Theme.getSize("slider_layerview_size").width
         height: UM.Theme.getSize("slider_layerview_size").height
         anchors.left: parent.left
-        anchors.leftMargin: UM.Theme.getSize("slider_layerview_margin").width/2
+        anchors.leftMargin: UM.Theme.getSize("slider_layerview_margin").width * 0.8
         orientation: Qt.Vertical
         minimumValue: 0;
         maximumValue: UM.LayerView.numLayers;

plugins/LayerView/LayerViewProxy.py

@@ -35,6 +35,12 @@ class LayerViewProxy(QObject):
         if type(active_view) == LayerView.LayerView.LayerView:
             return active_view.getCurrentLayer()
 
+    @pyqtProperty(int, notify = currentLayerChanged)
+    def minimumLayer(self):
+        active_view = self._controller.getActiveView()
+        if type(active_view) == LayerView.LayerView.LayerView:
+            return active_view.getMinimumLayer()
+
     busyChanged = pyqtSignal()
     @pyqtProperty(bool, notify = busyChanged)
     def busy(self):
@@ -50,6 +56,12 @@ class LayerViewProxy(QObject):
         if type(active_view) == LayerView.LayerView.LayerView:
             active_view.setLayer(layer_num)
 
+    @pyqtSlot(int)
+    def setMinimumLayer(self, layer_num):
+        active_view = self._controller.getActiveView()
+        if type(active_view) == LayerView.LayerView.LayerView:
+            active_view.setMinimumLayer(layer_num)
+
     @pyqtSlot(int)
     def setLayerViewType(self, layer_view_type):
         active_view = self._controller.getActiveView()