https://github.com/blackbeam/pixbuf-simple

simple javascript interface to gdk-pixbuf 2.0
https://github.com/blackbeam/pixbuf-simple

Last synced: 20 days ago
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simple javascript interface to gdk-pixbuf 2.0

• Host: GitHub
• URL: https://github.com/blackbeam/pixbuf-simple
• Owner: blackbeam
• Created: 2010-11-09T08:40:00.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2013-07-19T08:05:02.000Z (over 11 years ago)
• Last Synced: 2024-11-29T18:17:36.777Z (24 days ago)
• Language: C++
• Homepage:
• Size: 152 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## pixbuf-simple

Simple synchronous js interface to gdk-pixbuf 2.0

### Requirements:

1. gdk-pixbuf 2.0

### Installation:

```bash

npm install pixbuf-simple

```

### Usage example:

```javascript

var p = require('pixbuf-simple');

// Get list of supported formats

p.formats;

// New pixbuf

var pb = new Pixbuf(/*has alpha*/ false, /*width*/ 2, /*height*/ 2);

console.log(pb);

// > { '0': { r: xx, g: xx, b: xx },

// >   '1': { r: xx, g: xx, b: xx },

// >   '2': { r: xx, g: xx, b: xx },

// >   '3': { r: xx, g: xx, b: xx },

// >   length: 4,

// >   height: 2,

// >   width: 2,

// >   has_alpha: false,

// >   pixels:  }

// Set pixel value

pb[3] = {r: 0, g: 255, b: 0};

// New pixbuf from buffer of pixels

var npb = new Pixbuf(pb.pixels, pb.has_alpha, pb.width, pb.height);

// New pixbuf from file

var fpb = new Pixbuf('path/to/file.jpeg');

// New pixbuf from file at scale (refers to gdk_pixbuf_new_from_file_at_scale)

fpb = new Pixbuf('path/to/file.jpeg', /*width*/ 10, /*height*/ 20, /*preserve_aspect_ratio*/ false);

// Encode pixbuf

var raw_image_buffer = fpb.toImage('png', {complression: '9'});

```

### Additional info:

  For list of supported image formats and options please refer to gdk-pixbuf 2.0 documentation.

  Gdk-pixbuf has limited support of transparency.