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--- graphic:python:blender [2024/01/31 08:00] – [Blender variable naming standards] ying
+++ graphic:python:blender [2024/02/01 09:13] – [Blender UI code] ying
@@ Line 634: / Line 634: @@
 ...
 layout.template_list(type_name, list_id, ptr, propname, active, rows, maxrows, ..) # a list widget
+</code>
+  * long label solution and auto wrap <code python>
+import bpy
+import textwrap
+long_text = """
+        a long text  long text  long text
+        b test
+        c long text  long text  long text  long text  long text  long
+        d text  long text  long text  long text """
+def get_max_label_width():
+    # Get the 3D View area
+    for area in bpy.context.screen.areas:
+        if area.type == 'VIEW_3D':
+            break
+    # Calculate the width of the panel
+    panel_width = 280 # default value
+    for region in area.regions:
+        if region.type == 'UI':
+            panel_width = region.width
+            return panel_width
+            break
+    # Calculate the maximum width of the label
+    uifontscale = 9 * context.preferences.view.ui_scale
+    max_label_width = int(panel_width // uifontscale)
+    return max_label_width
+def create_long_label(layout, long_text, icon='',indent=''):
+    max_label_width = get_max_label_width()
+    first_icon_line_done = False
+    rest_line_indent = indent
+    if icon == '':
+        first_icon_line_done = True
+        rest_line_indent = ''
+    # Split the text into lines and format each line
+    for line in long_text.splitlines():
+        # Remove leading and trailing whitespace
+        line = line.strip()
+        # Split the line into chunks that fit within the maximum label width
+        for chunk in textwrap.wrap(line, width=max_label_width):
+            if not first_icon_line_done:
+                layout.label(text=chunk, icon=icon)
+                first_icon_line_done = True
+            else:
+                layout.label(text=rest_line_indent+chunk)
+class MyPanel(bpy.types.Panel):
+    bl_idname = "OBJECT_PT_my_panel"
+    bl_label = "My Panel"
+    bl_space_type = "VIEW_3D"
+    bl_region_type = "UI"
+    def draw(self, context):
+        layout = self.layout
+        create_long_label(layout, long_text, "KEYTYPE_JITTER_VEC", '    ')
+# Register the panel
+bpy.utils.register_class(MyPanel)
 </code>
 ===== Blender preference =====