Update and rename ExportMultiLayerSVG.py to merge_svg_layers.py

Author: SimonHeggie

ExportMultiLayerSVG.py renamed to merge_svg_layers.py

@@ -1,15 +1,16 @@
-from krita import Krita, InfoObject
+from krita import Krita
 from PyQt5.QtWidgets import QFileDialog
 
 def find_vector_layers(layer, vector_layers):
     """ Recursively find all vector layers, even inside groups. """
-    if layer.type() == 'grouplayer':  # If it's a group, search inside it
+    if layer.type() == 'grouplayer':  
         for child in layer.childNodes():
             find_vector_layers(child, vector_layers)
-    elif layer.type() == 'vectorlayer':  # If it's a vector layer, add it
+    elif layer.type() == 'vectorlayer':  
         vector_layers.append(layer)
 
 def merge_all_vector_layers_and_export():
+    """ Merges all vector layers in Krita and exports them as a single SVG. """
     app = Krita.instance()
     doc = app.activeDocument()
 
@@ -20,59 +21,47 @@ def merge_all_vector_layers_and_export():
     root = doc.rootNode()
     vector_layers = []
 
-    # Recursively find all vector layers (including inside groups)
     for layer in root.childNodes():
         find_vector_layers(layer, vector_layers)
 
     if len(vector_layers) < 2:
         print("Not enough vector layers to merge.")
         return
 
-    # Create a new group layer
     group_layer = doc.createGroupLayer("Merged Vector Layers")
-    root.addChildNode(group_layer, None)  # Add group at the top level
+    root.addChildNode(group_layer, None)  
 
     doc.refreshProjection()
 
     copied_layers = []
 
-    # Copy vector layers into the new group (leave originals untouched)
     for layer in vector_layers:
-        layer_copy = layer.duplicate()  # Create a duplicate
-        layer_copy.setName(layer.name() + " (Copy)")  # Rename to avoid conflicts
-        group_layer.addChildNode(layer_copy, None)  # Add copy to the group
+        layer_copy = layer.duplicate()
+        layer_copy.setName(layer.name() + " (Copy)")  
+        group_layer.addChildNode(layer_copy, None)  
         copied_layers.append(layer_copy)
 
     doc.refreshProjection()
 
-    # Merge copied layers from top to bottom
     while len(group_layer.childNodes()) > 1:
-        top_layer = group_layer.childNodes()[-1]  # Get the topmost layer
+        top_layer = group_layer.childNodes()[-1]
         below_layer = group_layer.childNodes()[-2] if len(group_layer.childNodes()) > 1 else None
 
         if below_layer:
             top_layer.mergeDown()
             doc.refreshProjection()
 
-    # Get the final merged vector layer
     merged_layer = group_layer.childNodes()[0] if group_layer.childNodes() else None
 
     if merged_layer:
-        print("All vector layers successfully merged into a single layer inside the group.")
-        print("Original layers remain unchanged.")
-
-        # Prompt the user for an SVG filename
         file_dialog = QFileDialog()
         file_dialog.setDefaultSuffix("svg")
         save_path, _ = file_dialog.getSaveFileName(None, "Save Merged Vector Layer as SVG", "", "SVG Files (*.svg)")
         save_path = ''.join(save_path)
 
-        # Validate file
         if save_path:
-            # Convert the layer to an SVG XML string
             svg = merged_layer.toSvg()
             try:
-                # Try and save the SVG
                 with open(save_path, "w") as file:
                     file.writelines(svg)
                 print(f"SVG exported successfully: {save_path}")
@@ -82,13 +71,10 @@ def merge_all_vector_layers_and_export():
         else:
             print("SVG export cancelled.")
 
-        # Remove the temporary "Merged Vector Layers" group
         print("Removing temporary merged layer group...")
-        root.removeChildNode(group_layer)  # Remove the group from the document
+        root.removeChildNode(group_layer)  
         doc.refreshProjection()
         print("Temporary merged group deleted.")
 
     else:
         print("Error: No merged vector layer found.")
-
-merge_all_vector_layers_and_export()