Add Nodes for Getting and Setting Canvas Sliders

Sources/armory/logicnode/CanvasGetSliderNode.hx

@@ -0,0 +1,28 @@
+package armory.logicnode;
+
+import iron.Scene;
+import armory.trait.internal.CanvasScript;
+
+class CanvasGetSliderNode extends LogicNode {
+
+	var canvas:CanvasScript;
+
+	public function new(tree:LogicTree) {
+		super(tree);
+	}
+
+#if arm_ui
+	override function get(from:Int) {
+		if (canvas == null) canvas = Scene.active.getTrait(CanvasScript);
+		if (canvas == null) canvas = Scene.active.camera.getTrait(CanvasScript);
+		if (canvas == null || !canvas.ready) return null;
+
+		
+		// This Try/Catch hacks around an issue where the handles are
+		// not created yet, even though canvas.ready is true.
+		try {
+			return canvas.getHandle(inputs[0].get()).value;
+		} catch (e:Dynamic) {return null;}
+	}
+#end
+}

Sources/armory/logicnode/CanvasSetSliderNode.hx

@@ -0,0 +1,41 @@
+package armory.logicnode;
+
+import iron.Scene;
+import armory.trait.internal.CanvasScript;
+
+class CanvasSetSliderNode extends LogicNode {
+
+	var canvas:CanvasScript;
+	var element:String;
+	var value:Float;
+
+	public function new(tree:LogicTree) {
+		super(tree);
+	}
+
+#if arm_ui
+	function update() {
+		if (!canvas.ready) return;
+
+		// This Try/Catch hacks around an issue where the handles are
+		// not created yet, even though canvas.ready is true.
+		try {
+			canvas.getHandle(element).value = value;
+			tree.removeUpdate(update);
+		} catch (e:Dynamic) {}
+
+		runOutput(0);
+	}
+
+	override function run(from:Int) {
+		element = inputs[1].get();
+		value = inputs[2].get();
+		canvas = Scene.active.getTrait(CanvasScript);
+		if (canvas == null) canvas = Scene.active.camera.getTrait(CanvasScript);
+
+		// Ensure canvas is ready
+		tree.notifyOnUpdate(update);
+		update();
+	}
+#end
+}

blender/arm/logicnode/canvas_get_slider.py

@@ -0,0 +1,16 @@
+import bpy
+from bpy.props import *
+from bpy.types import Node, NodeSocket
+from arm.logicnode.arm_nodes import *
+
+class CanvasGetSliderNode(Node, ArmLogicTreeNode):
+    '''Set canvas text'''
+    bl_idname = 'LNCanvasGetSliderNode'
+    bl_label = 'Canvas Get Slider'
+    bl_icon = 'QUESTION'
+
+    def init(self, context):
+        self.inputs.new('NodeSocketString', 'Element')
+        self.outputs.new('NodeSocketFloat', 'Value')
+
+add_node(CanvasGetSliderNode, category='Canvas')

blender/arm/logicnode/canvas_set_slider.py

@@ -0,0 +1,18 @@
+import bpy
+from bpy.props import *
+from bpy.types import Node, NodeSocket
+from arm.logicnode.arm_nodes import *
+
+class CanvasSetSliderNode(Node, ArmLogicTreeNode):
+    '''Set canvas text'''
+    bl_idname = 'LNCanvasSetSliderNode'
+    bl_label = 'Canvas Set Slider'
+    bl_icon = 'QUESTION'
+
+    def init(self, context):
+        self.inputs.new('ArmNodeSocketAction', 'In')
+        self.inputs.new('NodeSocketString', 'Element')
+        self.inputs.new('NodeSocketFloat', 'Value')
+        self.outputs.new('ArmNodeSocketAction', 'Out')
+
+add_node(CanvasSetSliderNode, category='Canvas')