Edit multiple parts at once.

source/creator/actions/mesheditor.d

@@ -34,8 +34,9 @@ class MeshEditorDeformationAction  : LazyBoundAction {
     bool bindingAdded;
     bool undoable = true;
 
-    this(string name, void delegate() update = null) {
+    this(string name, Drawable target, void delegate() update = null) {
         this.name   = name;
+        this.target = target;
         this.bindingAdded = false;
         this.clear();
 
@@ -46,7 +47,8 @@ class MeshEditorDeformationAction  : LazyBoundAction {
     }
 
     auto self() {
-        return incViewportModelDeformGetEditor();
+        IncMeshEditor editor = incViewportModelDeformGetEditor();
+        return editor? editor.getEditorFor(target): null;
     }
 
     void addVertex(MeshVertex* vertex) {
@@ -73,7 +75,7 @@ class MeshEditorDeformationAction  : LazyBoundAction {
             vertices     = null;
             isSet        = false;
         } else {
-            target       = self.getTarget();
+//            target       = self.getTarget();
             param        = incArmedParameter();
             keypoint     = param.findClosestKeypoint();
             vertices     = self.getOffsets();
@@ -207,8 +209,8 @@ public:
             return null;
     }
 
-    this(string name, void delegate() update = null) {
-        super(name, update);
+    this(string name, Drawable target, void delegate() update = null) {
+        super(name, target, update);
         if (path !is null)
             oldPathPoints = path.points.dup;
         else

source/creator/actions/package.d

@@ -132,4 +132,6 @@ public:
 
     bool merge(Action other) { return false; }
     bool canMerge(Action other) { return false; }
+
+    bool empty() { return actions.length == 0; }
 }

source/creator/core/actionstack.d

@@ -11,6 +11,7 @@ import inochi2d;
 
 private {
     Action[] actions;
+    GroupAction currentGroup = null;
     size_t actionPointer;
     size_t actionIndex;
     size_t maxUndoHistory;
@@ -27,21 +28,26 @@ void incActionInit() {
     Pushes a new action to the stack
 */
 void incActionPush(Action action) {
-
-    // Chop away entries outside undo history
-    if (actionPointer+1 > incActionGetUndoHistoryLength()) {
-        size_t toChop = (actionPointer+1)-incActionGetUndoHistoryLength();
-        actions = actions[toChop..$];
-        actionPointer -= toChop;
-    }
 
-    if (incActionTop() !is null && incActionTop().canMerge(action)) {
-        incActionTop().merge(action);
-        incActionNotifyTopChanged();
+    if (currentGroup !is null) {
+        currentGroup.addAction(action);
     } else {
-        // Add to the history
-        actions = actions[0..actionPointer]~action;
-        actionPointer++;
+
+        // Chop away entries outside undo history
+        if (actionPointer+1 > incActionGetUndoHistoryLength()) {
+            size_t toChop = (actionPointer+1)-incActionGetUndoHistoryLength();
+            actions = actions[toChop..$];
+            actionPointer -= toChop;
+        }
+
+        if (incActionTop() !is null && incActionTop().canMerge(action)) {
+            incActionTop().merge(action);
+            incActionNotifyTopChanged();
+        } else {
+            // Add to the history
+            actions = actions[0..actionPointer]~action;
+            actionPointer++;
+        }
     }
 }
 
@@ -155,4 +161,23 @@ void incActionSetIndex(size_t index) {
 void incActionClearHistory() {
     actions.length = 0;
     actionPointer = 0;
+}
+
+/**
+    Push GroupAction to action stack.
+    Subsequent Action is added to GroupAction.
+    GroupAction is added to action stack when incActionPopGroup is called.
+*/
+void incActionPushGroup() {
+    if (!currentGroup)
+        currentGroup = new GroupAction();
+}
+
+void incActionPopGroup() {
+    if (currentGroup) {
+        auto group = currentGroup;
+        currentGroup = null;
+        if (group !is null && !group.empty())
+            incActionPush(group);
+    }
 }

source/creator/package.d

@@ -26,6 +26,7 @@ import creator.core.colorbleed;
 import std.file;
 import std.format;
 import i18n;
+import std.algorithm.searching;
 
 /**
     A project
@@ -415,8 +416,10 @@ void incSelectNode(Node n = null) {
     Adds node to selection
 */
 void incAddSelectNode(Node n) {
-    if (incArmedParameter()) return;
+    if (selectedNodes.canFind(n))
+        return;
     selectedNodes ~= n;
+    incViewportModelNodeSelectionChanged();
 }
 
 /**
@@ -427,6 +430,7 @@ void incRemoveSelectNode(Node n) {
         if (n.uuid == nn.uuid) {
             import std.algorithm.mutation : remove;
             selectedNodes = selectedNodes.remove(i);
+            incViewportModelNodeSelectionChanged();
         }
     }
 }

source/creator/panels/parameters.d

@@ -287,7 +287,7 @@ private {
                     auto target = cast(Drawable)binding.getTarget().node;
                     if (target) {
                         editor.setTarget(target);
-                        auto newDeform = editor.getMesh().deformByDeformationBinding(deformBinding, cParamPoint, true);
+                        auto newDeform = editor.getEditorFor(target).getMesh().deformByDeformationBinding(deformBinding, cParamPoint, true);
                         if (newDeform)
                             deformBinding.setValue(cParamPoint, *newDeform);
                     }