Implement left/right corner labels; add end-anchor support to text-to-paths

web/app.py

@@ -300,12 +300,12 @@ def _markup_unit_svg(unit: str, fd: _FontData, fill='#1a1a1a') -> str:
 def _text_to_paths(text, x, y, font_size, fd: _FontData, anchor='start', fill='#1a1a1a', wrap_transform=None):
     s = font_size / fd.upm
 
-    if anchor == 'middle':
+    if anchor in ('middle', 'end'):
         total_w = sum(
             fd.hmtx.get(fd.cmap.get(ord(ch)), (0, 0))[0] * s
             for ch in text if fd.cmap.get(ord(ch))
         )
-        x -= total_w / 2
+        x -= total_w / 2 if anchor == 'middle' else total_w
 
     parts = []
     cx = x
@@ -506,6 +506,34 @@ def generate_svg(unit, min_val, max_val, left_label, right_label, big_ticks, sma
             )
 
     parts.append('    ' + _markup_unit_svg(unit, fd))
+
+    left_lines = left_label.split('\n')[:2]
+    right_lines = right_label.split('\n')[:2]
+
+    for i, line in enumerate(left_lines):
+        if not line:
+            continue
+        y = LEFT_Y0 + i * CORNER_LINE_SPACING
+        if use_paths:
+            parts.append('    ' + _text_to_paths(line, LEFT_X, y, CORNER_FONT_SIZE, fd, anchor='start'))
+        else:
+            parts.append(
+                f'    <text style="font-size:{CORNER_FONT_SIZE:.5f}px;font-family:\'{fd.label}\',monospace;fill:#1a1a1a"'
+                f' x="{LEFT_X:.5f}" y="{y:.5f}">{escape(line)}</text>'
+            )
+
+    for i, line in enumerate(right_lines):
+        if not line:
+            continue
+        y = RIGHT_Y0 + i * CORNER_LINE_SPACING
+        if use_paths:
+            parts.append('    ' + _text_to_paths(line, RIGHT_X, y, CORNER_FONT_SIZE, fd, anchor='end'))
+        else:
+            parts.append(
+                f'    <text style="font-size:{CORNER_FONT_SIZE:.5f}px;font-family:\'{fd.label}\',monospace;fill:#1a1a1a"'
+                f' text-anchor="end" x="{RIGHT_X:.5f}" y="{y:.5f}">{escape(line)}</text>'
+            )
+
     parts += ['  </g>', '</svg>']
     return '\n'.join(parts)