Move 3DConnexion support to plugin

CURA-12407

plugins/3DConnexion/OverlayNode.py

@@ -0,0 +1,68 @@
+# Copyright (c) 2016 Ultimaker B.V.
+# Cura is released under the terms of the AGPLv3 or higher.
+
+from UM.Scene.SceneNode import SceneNode
+from UM.View.GL.OpenGL import OpenGL
+from UM.Mesh.MeshBuilder import MeshBuilder  # To create the overlay quad
+from UM.Resources import Resources  # To find shader locations
+from UM.Math.Matrix import Matrix
+from UM.Application import Application
+
+try:
+    from PyQt6.QtGui import QImage
+except:
+    from PyQt5.QtGui import QImage
+
+class OverlayNode(SceneNode):
+    def __init__(self, node, image_path, size, parent=None):
+        super().__init__(parent)
+        self._target_node = node
+        self.setCalculateBoundingBox(False)
+
+        self._overlay_mesh = self._createOverlayQuad(size)
+        self._drawed_mesh = self._overlay_mesh
+        self._shader = None
+        self._scene = Application.getInstance().getController().getScene()
+        self._scale = 1.
+        self._image_path = image_path
+
+    def scale(self, factor):
+        scale_matrix = Matrix()
+        scale_matrix.setByScaleFactor(factor)
+        self._drawed_mesh = self._overlay_mesh.getTransformed(scale_matrix)
+
+    def _createOverlayQuad(self, size):
+        mb = MeshBuilder()
+        mb.addFaceByPoints(-size / 2, -size / 2, 0, -size / 2, size / 2, 0, size / 2, -size / 2, 0)
+        mb.addFaceByPoints(size / 2, size / 2, 0, -size / 2, size / 2, 0, size / 2, -size / 2, 0)
+
+        # Set UV coordinates so a texture can be created
+        mb.setVertexUVCoordinates(0, 0, 1)
+        mb.setVertexUVCoordinates(1, 0, 0)
+        mb.setVertexUVCoordinates(4, 0, 0)
+        mb.setVertexUVCoordinates(2, 1, 1)
+        mb.setVertexUVCoordinates(5, 1, 1)
+        mb.setVertexUVCoordinates(3, 1, 0)
+
+        return mb.build()
+
+    def render(self, renderer):
+
+        if not self._shader:
+            # We now misuse the platform shader, as it actually supports textures
+            self._shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "platform.shader"))
+            # Set the opacity to 0, so that the template is in full control.
+            self._shader.setUniformValue("u_opacity", 0)
+            self._texture = OpenGL.getInstance().createTexture()
+            texture_image = QImage(self._image_path)
+            self._texture.setImage(texture_image)
+            self._shader.setTexture(0, self._texture)
+
+        node_position = self._target_node.getWorldPosition()
+        position_matrix = Matrix()
+        position_matrix.setByTranslation(node_position)
+        camera_orientation = self._scene.getActiveCamera().getOrientation().toMatrix()
+
+        renderer.queueNode(self._scene.getRoot(), shader=self._shader, mesh=self._drawed_mesh.getTransformed(position_matrix.multiply(camera_orientation)), overlay=True)
+
+        return True  # This node does it's own rendering.