From ec68326027a5303d75b92cadce0f720bc6fd7158 Mon Sep 17 00:00:00 2001
From: Thomas Eschemann <thomas@eschemann.fr>
Date: Wed, 23 Sep 2015 15:47:58 +0200
Subject: [PATCH] Add support for ImageMagick specfic crop options

Support ImageMagick crop function specific options ! and @.
---
 lib/args.js  | 7 +++++--
 test/crop.js | 7 +++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/args.js b/lib/args.js
index 5bffdd2..12c6f08 100644
--- a/lib/args.js
+++ b/lib/args.js
@@ -789,7 +789,7 @@ module.exports = function (proto) {
   }
 
   // http://www.graphicsmagick.org/GraphicsMagick.html#details-crop
-  proto.crop = function crop (w, h, x, y, percent) {
+  proto.crop = function crop (w, h, x, y, arg) {
     if (this.inputIs('jpg')) {
       // avoid error "geometry does not contain image (unable to crop image)" - gh-17
       var index = this._in.indexOf('-size');
@@ -798,7 +798,10 @@ module.exports = function (proto) {
       }
     }
 
-    return this.out("-crop", w + "x" + h + "+" + (x || 0) + "+" + (y || 0) + (percent ? '%' : ''));
+    // backward compatibility 
+    arg = (arg === true) ? '%' : arg;
+
+    return this.out("-crop", w + "x" + h + "+" + (x || 0) + "+" + (y || 0) + (arg || ''));
   }
 
   // http://www.graphicsmagick.org/GraphicsMagick.html#details-magnify
diff --git a/test/crop.js b/test/crop.js
index f293b3d..0d43c33 100644
--- a/test/crop.js
+++ b/test/crop.js
@@ -17,6 +17,13 @@ module.exports = function (gm, dir, finish, GM) {
   var args2 = m2.args();
   assert.equal('200x155+300+0%', args2[3]);
 
+  var m3 = GM(dir + '/image.png')
+  .crop(200, 155, 300, 0, '!');
+
+  var args3 = m3.args();
+  assert.equal('200x155+300+0!', args3[3]);
+
+
   if (!GM.integration)
     return finish();