[ui] Remove intrinsic if not used by any viewpoint

meshroom/core/attribute.py

@@ -445,6 +445,9 @@ def __init__(self, node, attributeDesc, isOutput, root=None, parent=None):
     def __len__(self):
         return len(self._value)
 
+    def __iter__(self):
+        return iter(self._value)
+
     def getBaseType(self):
         return self.attributeDesc.elementDesc.__class__.__name__
 

meshroom/ui/graph.py

@@ -816,6 +816,29 @@ def appendAttribute(self, attribute, value=QJsonValue()):
     def removeAttribute(self, attribute):
         self.push(commands.ListAttributeRemoveCommand(self._graph, attribute))
 
+    @Slot(Attribute)
+    def removeImage(self, image):
+        with self.groupedGraphModification("Remove Image"):
+            # look if the viewpoint's intrinsic is used by another viewpoint
+            # if not, remove it
+            intrinsicId = image.intrinsicId.value
+
+            intrinsicUsed = False
+            for intrinsic in self.cameraInit.attribute("viewpoints").getExportValue():
+                if image.getExportValue() != intrinsic and intrinsic['intrinsicId'] == intrinsicId:
+                    intrinsicUsed = True
+                    break
+
+            if not intrinsicUsed:
+                #find the intrinsic and remove it
+                for intrinsic in self.cameraInit.attribute("intrinsics"):
+                    if intrinsic.getExportValue()["intrinsicId"] == intrinsicId:
+                        self.removeAttribute(intrinsic)
+                        break
+
+            # After every check we finally remove the attribute
+            self.removeAttribute(image)
+
     @Slot()
     def removeAllImages(self):
         with self.groupedGraphModification("Remove All Images"):

meshroom/ui/qml/ImageGallery/ImageGallery.qml

@@ -291,12 +291,14 @@ Panel {
                     }
 
                     function sendRemoveRequest() {
-                        if (!readOnly) {
-                            removeImageRequest(object)
-                            // If the last image has been removed, make sure the viewpoints and intrinsics are reset
-                            if (m.viewpoints.count === 0)
-                                allViewpointsCleared()
-                        }
+                        if (readOnly)
+                            return
+
+                        removeImageRequest(object)
+
+                        // If the last image has been removed, make sure the viewpoints and intrinsics are reset
+                        if (m.viewpoints.count === 0)
+                            allViewpointsCleared()
                     }
 
                     function removeAllImages() {

meshroom/ui/qml/WorkspaceView.qml

@@ -78,8 +78,8 @@ Item {
                 cameraInit: reconstruction ? reconstruction.cameraInit : null
                 tempCameraInit: reconstruction ? reconstruction.tempCameraInit : null
                 cameraInitIndex: reconstruction ? reconstruction.cameraInitIndex : -1
-                onRemoveImageRequest: reconstruction.removeAttribute(attribute)
-                onAllViewpointsCleared: { reconstruction.removeAllImages(); reconstruction.selectedViewId = "-1" }
+                onRemoveImageRequest: reconstruction.removeImage(attribute)
+                onAllViewpointsCleared: { reconstruction.selectedViewId = "-1" }
                 onFilesDropped: {
                     if (drop["meshroomScenes"].length == 1) {
                         ensureSaved(function() {