Disable implicit text wrapping

app/app.py

@@ -107,31 +107,18 @@ def object_box(obj: dict[str, Any], scale: float) -> tuple[int, int, int, int]:
     return x, y, max(1, w), max(1, h)
 
 
-def wrap_text(draw: ImageDraw.ImageDraw, text: str, font, max_width: int) -> list[str]:
-    lines: list[str] = []
-    for raw_line in text.splitlines() or [""]:
-        current = ""
-        for word in raw_line.split(" "):
-            candidate = word if not current else f"{current} {word}"
-            if draw.textbbox((0, 0), candidate, font=font)[2] <= max_width:
-                current = candidate
-                continue
-            if current:
-                lines.append(current)
-            current = word
-        if current:
-            lines.append(current)
-    return lines
+def text_lines(text: str) -> list[str]:
+    return text.split("\n")
 
 
-def draw_text(draw: ImageDraw.ImageDraw, obj: dict[str, Any], scale: float) -> None:
+def draw_text(image: Image.Image, draw: ImageDraw.ImageDraw, obj: dict[str, Any], scale: float) -> None:
     x, y, w, h = object_box(obj, scale)
     text = str(obj.get("text", "Text"))
     font_size = scaled_mm_to_px(float(obj.get("fontSizeMm", 5)), scale)
     font = get_font(font_size, bool(obj.get("bold", False)))
     align = obj.get("align", "left")
     valign = obj.get("valign", "middle")
-    lines = wrap_text(draw, text, font, w)
+    lines = text_lines(text)
     boxes = [draw.textbbox((0, 0), line, font=font) for line in lines]
     line_heights = [box[3] - box[1] for box in boxes]
     gap = max(1, round(font_size * 0.15))
@@ -150,7 +137,15 @@ def draw_text(draw: ImageDraw.ImageDraw, obj: dict[str, Any], scale: float) -> N
             cx = x + w - text_w
         else:
             cx = x
-        draw.text((cx, cy - box[1]), line, font=font, fill=1)
+        text_layer = Image.new("1", image.size, 0)
+        text_draw = ImageDraw.Draw(text_layer)
+        text_draw.text((cx, cy - box[1]), line, font=font, fill=1)
+        clip = Image.new("1", image.size, 0)
+        clip_draw = ImageDraw.Draw(clip)
+        clip_draw.rectangle([x, y, x + w, y + h], fill=1)
+        clipped = Image.new("1", image.size, 0)
+        clipped.paste(text_layer, mask=clip)
+        image.paste(1, mask=clipped)
         cy += line_h + gap
 
 
@@ -283,7 +278,7 @@ def render_design_image(design: dict[str, Any]) -> Image.Image:
             continue
         obj_type = obj.get("type")
         if obj_type == "text" or obj_type == "symbol":
-            draw_text(draw, obj, scale)
+            draw_text(image, draw, obj, scale)
         elif obj_type == "shape":
             draw_shape(draw, obj, scale)
         elif obj_type == "line":