Description
This is a picture and sound viewer directive for AngularJS
Demo
A sample demo is available here.
Prerequisites
- FontAweSome ( for nice icons library)
- BootStrap ( for button look&feel )
Features
- Support many format of pictures and sound (PNG, JPG, PDF, TIFF, WAV, OGG, MPEG)
- Module delivery or whole package
- Image rotation and Zoom parametric ( Rotation angle by default is set to 90°)
- External control
- Metadata information extraction
- Support multipage ( TIFF and PDF)
How to build
You need npm package manager :
# npm install
# gulp dist
How to use it
The directive usage is as follow ( CanvasViewer.min.worker.js must be in same folder that CanvasViewer.min.js but not in script tag ), src can be either a string or a File or Blob object :
<html>
<head>
<link rel="stylesheet" href="dist/CanvasViewer.all.min.css">
<script src="dist/CanvasViewer.all.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<canvas-viewer src="test.jpg" title="TITLE" overlays="overlays" options="options"></canvas-viewer>
</body>
</html>
titleandoverlaysare optional.
Usage with $http or input type file :
$http.get("assets/img/billet_specimen_securite2.jpg", { responseType : 'blob'}).then(function(resp) {
$scope.fileInput = resp.data;
});<canvas-viewer src="fileInput" title="TITLE" overlays="overlays" options="options"></canvas-viewer>overlays is an Array Of Object like :
$scope.overlays = [{x : 50, y:155, w:106, h:29, color:'#00FF00'}];options is an Object as follow :
| Name | Properties | Definition |
|---|---|---|
| zoom | value | Read or write the zoom factor (By default : 1.0) |
| zoom | step | Set the zoom factor increment |
| zoom | min | Minimum zoom factor allowed |
| zoom | max | Maximum zoom factor allowed |
| rotate | value | Read or write the rotation angle of picture (By default : 0) |
| rotate | step | Set the rotation angle increment |
| controls | toolbar | Boolean to show/hide toolbar controls button |
| controls | image | Boolean to show/hide pictures controls button |
| controls | sound | Boolean to show/hide sound controls button |
| controls | fit | Possible values are page , height or width |
| controls | disableZoom | Disable zoom functionnality |
| controls | disableRotate | Disable rotate functionnality |
| controls | disableMove | Disable move functionnality |
| controls | numPage | Current page to display ( only for TIFF and PDF) |
| controls | totalPage | Total number of pages ( only for TIFF and PDF) |
| controls | filmstrip | Display multipage as film |
| adsrc | The Current AudioContext object ( Only for sound) |
|
| ctx | The Current CanvasContext object ( Only for sound) |
|
| info | The Metadata properties of viewed object ( Only for pictures) |
Sample options object with initial value or simple empty object {}:
var options = {
zoom : {
value : 0.5,
step : 0.01
},
rotate : {
value : 90
}
};