From 0ac3a07eecbd7b98f3a19d01dc46f02dcda3443b Mon Sep 17 00:00:00 2001
From: DepFA <35278260+dfaker@users.noreply.github.com>
Date: Mon, 10 Oct 2022 00:05:36 +0100
Subject: add caption image with overlay

---
 modules/images.py | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/modules/images.py b/modules/images.py
index 10963dc7..4a4fc977 100644
--- a/modules/images.py
+++ b/modules/images.py
@@ -459,3 +459,49 @@ def captionImge(image,prelines,postlines,background=(51, 51, 51),font=None):
     hoffset = addCaptionLines(postlines,background,hoffset,font)
     background = background.crop((0,0,sampleImage.size[0],hoffset+8))
     return background
+
+def captionImageOverlay(srcimage,title,footerLeft,footerMid,footerRight,textfont=None):
+    from math import cos
+
+    image = srcimage.copy()
+
+    if textfont is None:
+        try:
+            textfont = ImageFont.truetype(opts.font or Roboto, fontsize)
+            textfont = opts.font or Roboto
+        except Exception:
+            textfont = Roboto
+
+    factor = 1.5
+    gradient = Image.new('RGBA', (1,image.size[1]), color=(0,0,0,0))
+    for y in range(image.size[1]):
+        mag = 1-cos(y/image.size[1]*factor)
+        mag = max(mag,1-cos((image.size[1]-y)/image.size[1]*factor*1.1))
+        gradient.putpixel((0, y), (0,0,0,int(mag*255)))
+    image = Image.alpha_composite(image.convert('RGBA'), gradient.resize(image.size))
+
+    draw = ImageDraw.Draw(image)
+    fontSize = 32
+    font = ImageFont.truetype(textfont, fontSize)
+    padding = 10
+
+    _,_,w, h = draw.textbbox((0,0),title,font=font)
+    fontSize =  min( int(fontSize * (((image.size[0]*0.75)-(padding*4))/w) ), 72)
+    font = ImageFont.truetype(textfont, fontSize)
+    _,_,w,h = draw.textbbox((0,0),title,font=font)
+    draw.text((padding,padding), title, anchor='lt', font=font, fill=(255,255,255,230))
+
+    _,_,w, h = draw.textbbox((0,0),footerLeft,font=font)
+    fontSizeleft =  min( int(fontSize * (((image.size[0]/3)-(padding))/w) ), 72)
+    _,_,w, h = draw.textbbox((0,0),footerMid,font=font)
+    fontSizemid =  min( int(fontSize * (((image.size[0]/3)-(padding))/w) ), 72)
+    _,_,w, h = draw.textbbox((0,0),footerRight,font=font)
+    fontSizeright =  min( int(fontSize * (((image.size[0]/3)-(padding))/w) ), 72)
+
+    font = ImageFont.truetype(textfont, min(fontSizeleft,fontSizemid,fontSizeright))
+
+    draw.text((padding,image.size[1]-padding),               footerLeft, anchor='ls', font=font, fill=(255,255,255,230))
+    draw.text((image.size[0]/2,image.size[1]-padding),       footerMid, anchor='ms', font=font, fill=(255,255,255,230))
+    draw.text((image.size[0]-padding,image.size[1]-padding), footerRight, anchor='rs', font=font, fill=(255,255,255,230))
+
+    return image
-- 
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