1 + 2 +
// gm - Copyright Aaron Heckmann <aaron.heckmann+github@gmail.com> (MIT Licensed)
3 + 4 + 5 +
var exec = require('child_process').exec
6 +
, gm = {}
7 + 8 + 9 +
gm.Image = function(utility, input) {
10 +
this.input = input
11 +
this.inArgs = [utility]
12 +
this.outArgs = []
13 +
}
14 + 15 +
gm.Image.prototype =
16 +
{ size: function(width, height){
17 +
return this.makeArgs(["-size", width + "x" + height])
18 +
}
19 +
, _noProfileArg: function(){
20 +
return ['+profile "*"']
21 +
}
22 +
, _resizeArg: function(width, height) {
23 +
return ["-resize", width + "x" + height]
24 +
}
25 +
, makeArgs: function(inargs, outargs) {
26 +
if (inargs)
27 +
this.inArgs = this.inArgs.concat(inargs)
28 +
if (outargs)
29 +
this.outArgs = this.outArgs.concat(outargs)
30 +
return this
31 +
}
32 +
, cmd: function() {
33 +
return "gm "
34 +
+ this.inArgs.join(" ") + " "
35 +
+ this.input + " "
36 +
+ this.outArgs.join(" ")
37 +
}
38 +
, write: function(callback){
39 +
var cmd = this.cmd()
40 +
exec(cmd, function(err, stdout, stderr){
41 +
callback(err, stdout, stderr, cmd);
42 +
})
43 +
}
44 +
}
45 + 46 + 47 +
gm.Mogrify = function(image) {
48 +
gm.Image.call(this, 'mogrify', image)
49 +
}
50 +
function mog() {}
51 +
mog.prototype = gm.Image.prototype
52 +
;(gm.Mogrify.prototype = new mog).constructor = gm.Mogrify
53 + 54 +
gm.Mogrify.prototype.format = function(format){
55 +
return this.makeArgs(["-format", format])
56 +
}
57 +
gm.Mogrify.prototype.dir = function(dir) {
58 +
return this.makeArgs(["-output-directory", dir])
59 +
}
60 +
gm.Mogrify.prototype.createDir = function(dir) {
61 +
return this.makeArgs(["-create-directories"])
62 +
}
63 +
gm.Mogrify.prototype.resize = function(width, height){
64 +
return this.makeArgs(this._resizeArg(width, height))
65 +
}
66 +
gm.Mogrify.prototype.noProfile = function() {
67 +
return this.makeArgs(this._noProfileArg())
68 +
}
69 + 70 + 71 +
gm.Convert = function(image) {
72 +
gm.Image.call(this, 'convert', image)
73 +
}
74 +
function con(){}
75 +
con.prototype = gm.Image.prototype
76 +
;(gm.Convert.prototype = new con).constructor = gm.Convert
77 + 78 +
gm.Convert.prototype.resize = function(width, height){
79 +
return this.makeArgs(null, this._resizeArg(width, height))
80 +
}
81 +
gm.Convert.prototype.noProfile = function() {
82 +
return this.makeArgs(null, this._noProfileArg())
83 +
}
84 +
gm.Convert.prototype.name = function(filename) {
85 +
return this.makeArgs(null, [filename])
86 +
}
87 + 88 + 89 +
exports.Image = gm.Image
90 + 91 +
exports.mogrify = function(image) {
92 +
return new gm.Mogrify(image)
93 +
}
94 +
exports.convert = function(image) {
95 +
return new gm.Convert(image)
96 +
}
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