From 6804fb6cf989009e2801c73f80d757518e627815 Mon Sep 17 00:00:00 2001
From: Julien-Haudegond <44610840+Julien-Haudegond@users.noreply.github.com>
Date: Mon, 20 Jul 2020 11:52:05 +0200
Subject: [PATCH] [ui] Viewer3D: bounding box linked to meshing node

---
 meshroom/ui/qml/Viewer3D/Viewer3D.qml | 72 +++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/meshroom/ui/qml/Viewer3D/Viewer3D.qml b/meshroom/ui/qml/Viewer3D/Viewer3D.qml
index 7bbcf1cfc1..773304c869 100644
--- a/meshroom/ui/qml/Viewer3D/Viewer3D.qml
+++ b/meshroom/ui/qml/Viewer3D/Viewer3D.qml
@@ -139,6 +139,63 @@ FocusScope {
                 }
             }
 
+            // BoundingBox: display bounding box for meshing computation
+            // note: use a NodeInstantiator to evaluate if a Meshing node exists at runtime
+            NodeInstantiator {
+                id: boundingBoxInstantiator
+                property var activeNode: _reconstruction.activeNodes.get("Meshing").node
+                active: activeNode && activeNode.attribute("useBoundingBox").value
+                model: 1
+
+                EntityWithGizmo {
+                    id: boundingBoxEntity
+                    sceneCameraController: cameraController
+                    frontLayerComponent: drawOnFront
+                    window: root
+                    enabled: boundingBoxVisibility.checked
+
+                    // Update node meshing slider values when the gizmo has changed: translation, rotation, scale
+                    transformGizmo.onGizmoChanged: {
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.x"), translation.x)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.y"), translation.y)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.z"), translation.z)
+
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.x"), rotation.x)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.y"), rotation.y)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.z"), rotation.z)
+
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.x"), scale.x)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.y"), scale.y)
+                        _reconstruction.setAttribute(boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.z"), scale.z)
+                    }
+
+                    // Automatically evalutate the Transform: value is taken from the node OR from the actual modification if the gizmo is moved by mouse.
+                    // When the gizmo has changed (with mouse), the new values are set to the node, the priority is given back to the node and the Transform is re-evaluated once with those values.
+                    property var nodeTranslation : Qt.vector3d(
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.x").value,
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.y").value,
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxTranslation.z").value
+                    )
+                    property var nodeRotationX: boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.x").value
+                    property var nodeRotationY: boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.y").value
+                    property var nodeRotationZ: boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxRotation.z").value
+                    property var nodeScale: Qt.vector3d(
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.x").value,
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.y").value,
+                        boundingBoxInstantiator.activeNode.attribute("boundingBox.bboxScale.z").value
+                    )
+
+                    transformGizmo.gizmoDisplayTransform.translation: transformGizmo.focusGizmoPriority ? transformGizmo.gizmoDisplayTransform.translation : nodeTranslation
+                    transformGizmo.gizmoDisplayTransform.rotationX: transformGizmo.focusGizmoPriority ? transformGizmo.gizmoDisplayTransform.rotationX : nodeRotationX
+                    transformGizmo.gizmoDisplayTransform.rotationY: transformGizmo.focusGizmoPriority ? transformGizmo.gizmoDisplayTransform.rotationY : nodeRotationY
+                    transformGizmo.gizmoDisplayTransform.rotationZ: transformGizmo.focusGizmoPriority ? transformGizmo.gizmoDisplayTransform.rotationZ : nodeRotationZ
+                    transformGizmo.objectTransform.scale3D: transformGizmo.focusGizmoPriority ? transformGizmo.objectTransform.scale3D : nodeScale
+
+                    // The entity
+                    BoundingBox { transform: boundingBoxEntity.objectTransform }
+                }
+            }
+
             DefaultCameraController {
                 id: cameraController
                 enabled: cameraSelector.camera == mainCamera
@@ -305,6 +362,21 @@ FocusScope {
         }
     }
 
+    FloatingPane {
+        anchors.bottom: root.bottom
+        anchors.right: root.right
+        padding: 4
+        visible: boundingBoxInstantiator.active
+
+        MaterialToolButton {
+            id: boundingBoxVisibility
+            text: MaterialIcons.transform
+            ToolTip.text: "Show BoundingBox"
+            font.pointSize: 11
+            checked: true
+        }
+    }
+
     // Menu
     Menu {
         id: contextMenu