{"id":498,"date":"2010-03-23T14:29:26","date_gmt":"2010-03-23T08:59:26","guid":{"rendered":"https:\/\/2thenew.online\/blog\/?p=498"},"modified":"2011-06-16T12:20:07","modified_gmt":"2011-06-16T06:50:07","slug":"creating-image-thumbnails-through-imagetools-plugin","status":"publish","type":"post","link":"https:\/\/2thenew.online\/blog\/creating-image-thumbnails-through-imagetools-plugin\/","title":{"rendered":"Creating image thumbnails through Grails ImageTools plugin"},"content":{"rendered":"

In one of the projects recently, we had to generate the thumbnails dynamically from the client-provided images. We decided to use the Grails plugin named: ImageTools. This is a very basic plugin but provided very quick and stable solution to our use-case. You can read more about the plugin and how to install it here <\/a>.<\/p>\n

We decided to implement the solution in the form of a tag which gave us the ease to use it directly in a .gsp file. Here is how the code looked like in a taglib:<\/p>\n

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\r\nimport org.grails.plugins.imagetools.ImageTool  \/\/ Import the ImageTool class in your taglib.\r\n\r\ndef thumbnail = { attrs ->;\r\ndef imgSrc = attrs['imgSrc']\u00a0 \/\/ as the name suggests - the image source\r\ndef dimension = attrs['dimension'].toInteger()\u00a0 \/\/size of the image - giving 200 as a dimension gives you the thumbnail of around 200*200 in size.\r\ndef imageTool = new ImageTool()\r\nimageTool.load(imgSrc)\r\nimageTool.square()\r\nimageTool.thumbnail(dimension)\r\nimageTool.writeResult(thumbnailLocation,\"JPEG\")\u00a0 \/\/thumbnailLocation - provides the path to where you want to store the thumbnail image.\r\nout << thumbnailLocation\r\n}\r\n<\/pre>\n<\/div>\n<\/blockquote>\n
This is all you need to create the thumbnail programatically through ImageTools plugin. The code above always creates the new thumbnail; we tried to improvise the above solution by saving the thumbnail in a folder and checking for the existence of the thumbnail before actually creating the thumbnail. This is how we achieved it:<\/p>\n
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def thumbnail = {attrs ->;\r\ndef imgSrc = attrs['imgSrc']\r\ndef dimension = attrs['dimension'].toInteger()\r\ndef thumbLocation = \"\/path\/to\/store\/thumbnails\"\u00a0 + imgSrc\r\ndef file\r\n\r\n\/\/ if thumbnail already exists, return the path to the image\r\nif((file =\u00a0 new File(thumbLocation)).exists()){\r\nout << thumbLocation\r\n}\r\nelse{\r\n\/\/ the code to generate the thumbnail comes here.\r\n}\r\n}\r\n<\/pre>\n<\/div>\n<\/blockquote>\n
Hope this helps.<\/p>\n
— Abhishek<\/p>\n
Intelligrape Software<\/p>\n","protected":false},"excerpt":{"rendered":"
In one of the projects recently, we had to generate the thumbnails dynamically from the client-provided images. We decided to use the Grails plugin named: ImageTools. This is a very basic plugin but provided very quick and stable solution to our use-case. You can read more about the plugin and how to install it here […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":4,"footnotes":""},"categories":[7],"tags":[4840,191],"class_list":["post-498","post","type-post","status-publish","format-standard","hentry","category-grails","tag-grails","tag-imagetools-plugin"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t