more intro unfucking

fsck2025/__init__.py

@@ -3,6 +3,8 @@
 from renderlib import *
 from schedulelib import *
 from easing import *
+from xml.sax.saxutils import escape as xmlescape
+from PIL import ImageFont
 
 # URL to Schedule-XML
 scheduleUrl = "https://cfp.ctbk.de/fsck-2025/schedule/export/schedule.xml"
@@ -161,7 +163,37 @@ def debug():
     # )
 
 
+def fit_text(string: str, max_width: int, font: ImageFont) -> list[str]:
+    """Break text into array of strings which fit certain a width (in pixels) for the specified font."""
+
+    split_line = [x.strip() for x in string.split()]
+    lines = []
+    w = 0
+    line = []
+    for word in split_line:
+        new_line = line + [word.rstrip(":")]
+        w = font.getlength(" ".join(new_line))
+        if w > max_width:
+            lines.append(" ".join(line))
+            line = []
+
+        line.append(word.rstrip(":"))
+
+        if word.endswith(":"):
+            lines.append(" ".join(line))
+            line = []
+
+    if line:
+        lines.append(" ".join(line))
+
+    return lines
+
+
 def tasks(queue, args, idlist, skiplist):
+    font = ImageFont.truetype(
+        "../DIN1451Mittelschrift.ttf", size=74.6667, encoding="unic"
+    )
+
     # iterate over all events extracted from the schedule xml-export
     for event in events(scheduleUrl):
         # if event["room"] not in ("Medientheater", "Vortragssaal", "Blauer Salon"):
@@ -179,14 +211,18 @@ def tasks(queue, args, idlist, skiplist):
                 continue
 
         # generate a task description and put it into the queue
+        title_segments = fit_text(xmlescape(event["title"]), 1920, font)
+        title = "".join(
+            f'<tspan dy="1.1em" x="964.69553">{el}</tspan>' for el in title_segments
+        )
         queue.put(
             Rendertask(
                 infile=["intro.svg", "intro.flac"],
                 outfile=str(event["id"]) + ".ts",
                 sequence=introFrames,
                 parameters={
-                    "$title": event["title"],
-                    "$personnames": event["personnames"],
+                    "$title": title,
+                    "$personnames": xmlescape(event["personnames"]),
                 },
             )
         )