remove trailing blanks from watermark

jcupitt · jcupitt · commit 733260f94e41 · 2019-06-23T12:30:28.000+01:00
diff --git a/example/watermark.lua b/example/watermark.lua
@@ -1,4 +1,4 @@
-#!/usr/bin/luajit 
+#!/usr/bin/luajit
 
 -- add a simple text watermark to an image
 --    ./watermark.lua ~/pics/IMG_0073.JPG x.jpg "Hello <i>world!</i>"
@@ -11,22 +11,21 @@ local vips = require "vips"
 local im = vips.Image.new_from_file(arg[1], {access = "sequential"})
 
 -- make the text mask
-local text = 
-    vips.Image.text(arg[3], {width = 200, dpi = 200, 
-        align = "centre", font = "sans bold"})
+local text = vips.Image.text(arg[3],
+    {width = 200, dpi = 200, align = "centre", font = "sans bold"})
 text = text:rotate(-45)
 -- make the text transparent
 text = (text * 0.3):cast("uchar")
 text = text:gravity("centre", 200, 200)
 -- this block of pixels will be reused many times ... make a copy
---text = text:copy_memory()
-text = text:replicate(1 + im:width() / text:width(), 
+text = text:copy_memory()
+text = text:replicate(1 + im:width() / text:width(),
     1 + im:height() / text:height())
 text = text:crop(0, 0, im:width(), im:height())
 
 -- we make a constant colour image and attach the text mask as the alpha
-local overlay = 
-    text:new_from_image({255, 128, 128}):copy({interpretation = "srgb"})
+local overlay =
+    text:new_from_image({255, 128, 128}):copy{interpretation = "srgb"}
 overlay = overlay:bandjoin(text)
 
 -- overlay the text
