Corner.js 2.1 allows you to add corners (and also shading and shadow) to images on your webpages (alternatively: glossy.js). It uses unobtrusive javascript to keep your code clean. It works in all the major browsers - Mozilla Firefox 1.5+, Opera 9+, IE 6+ and Safari. On older browsers, it'll degrade and your visitors won't notice a thing. CVI-lab: Get a fast impression of the effects and their illustration qualities.

Demonstration

Shows some of the things "corner.js" does.

class = "corner"

class = "corner ishade50"

class = "corner ishadow20"

class = "corner ishade50 ishadow20"

class = "corner ishadow40 inverse"

class = "corner iradius16"

class =
"corner iradius24 ishadow33 inverse"

class =
"corner iradius20 ishadow33"

class =
"corner iradius8 ishade75 ishadow33"

class =
"corner iradius16 ishade66 ishadow30"

class =
"corner iradius32 ishade50 ishadow25"

class =
"corner iradius48 ishade33"

Scaled and linked

2/3 image width and height

class =
"corner iradius12
ishade50 ishadow20"

1/2 image width & height

class =
"corner iradius10
ishade66 ishadow25"

1/3 width & height

class =
"corner
iradius8
ishade75
ishadow30"

justcorners.js instead of corner.js

• Initialisation class "corners"
• vary the radius by adding iradius followed by the desired radius in pixel:
  Corner radius class "iradius24" - min=0 max=100 default=16
• vary the corners by adding iradiae followed by the desired bits as bitchain:
  Corner selection class "iradiae1010" - default=1111 [top left|top right|bottom left|bottom right]
• vary the border by adding iborder followed by the desired width in pixel:
  Corner border class "iborder2" - min=0 max=100 default=0
• vary the border color by adding icolor followed by the color as string:
  Border color class "icolor0000ff" - min=000000 max=ffffff default=0000ff
• vary the corner type by adding ibezel
  Corner type class "ibezel"

class =
"corners iradius32"

class =
"corners iradiae1010"

class =
"corners ibezel iborder1 icolorffffff"

Supports "usemap"

Setting Up

Download "corner.js" and include it into your webpage.

Using It

To add corners just add a class="corner" and an additonal class like "iradius16" to the image.

Classes

• Initialisation class "corner"
• vary the radius by adding iradius followed by the desired radius in pixel:
  Corner radius class "iradius24" - min=0 max=100 default=0
• vary the shading by adding ishade followed by the desired opacity in percentage:
  Image shading class "ishade50" - min=0 max=100 default=0
• vary the shadow by adding ishadow followed by the desired opacity in percentage:
  Image shadow class "ishadow33" - min=0 max=100 default=0
• vary the shadow by adding inverse:
  Shadow invert class "inverse"

Scripting libs

If you want flexibility, use "cvi_corner_lib.js" instead of "corner.js". You can make your images respond to user actions (e.g. changing one or more options when the image is hovered over).

Set defaults using Javascript

cvi_corner.defaultRadius = 0; //INT 0-100 (px)
cvi_corner.defaultShadow = 0; //INT 0-100 (% opacity)
cvi_corner.defaultShade = 0; //INT 0-100 (% opacity)
cvi_corner.defaultInverse = false; //BOOLEAN
If cvi_filter_lib.js is loaded also...
cvi_corner.defaultFilter = null; //OBJ [{f='grayscale'},{f='emboss', s:1}...]

Add images using Javascript

cvi_corner.add(image, options);
image should be an image element: document.getElementById("myimg")
options can contain one or more values: {radius: value, shadow: value, shade: value, inverse: value, filter: value}

Examples:

cvi_corner.add(document.getElementById("myimg"), { shadow: 75, shade: 20 });
<img onLoad="cvi_corner.add(this, { shadow: 75, shade: 20 });" ...>

Modify images using Javascript

cvi_corner.modify(image, options);
If the image has already an effect but a option value has changed, the effect will be changed accordingly.

Example:

cvi_corner.modify(document.getElementById("myimg"), { radius: 50 });

Remove effect from an image using Javascript

cvi_corner.remove(image);

Alternatively use "cvi_corners_lib.js" instead of "justcorners.js".

Set defaults using Javascript

cvi_corners.defaultXradius = 16; //INT 0-100 (px)
cvi_corners.defaultYradius = 0; //INT 0-100 (px)
cvi_corners.defaultCorners = "1111"; //STR "0000"-"1111" [top left|top right|bottom left|bottom right]
cvi_corners.defaultBorder = 0; //INT 0-100 (px borderwidth)
cvi_corners.defaultColor = "#0000ff"; //STR "#000000"-"#ffffff" bordercolor
cvi_corners.defaultOpacity = 100; //INT 0-100 (% borderopacity)
cvi_corners.defaultBezel = false; //BOOLEAN
If cvi_filter_lib.js is loaded also...
cvi_cornerr.defaultFilter = null; //OBJ [{f='grayscale'},{f='emboss', s:1}...]

Add images using Javascript

cvi_corners.add(image, options);
image should be an image element: document.getElementById("myimg")
options can contain one or more values: {xradius: value, yradius: value, corners: value, border: value, color: value, opacity: value, filter: value}

Examples:

cvi_corners.add(document.getElementById("myimg"), { corners: "1010" });
<img onLoad="cvi_corners.add(this, { corners: "1010" });" ...>

Modify images using Javascript

cvi_corners.modify(image, options);
If the image has already an effect but a option value has changed, the effect will be changed accordingly.

Example:

cvi_corners.modify(document.getElementById("myimg"), { xradius: 20, yradius: 10 });

Remove effect from an image using Javascript

cvi_corners.remove(image);

Support libs

If you are using the more flexible "cvi_corner_lib.js" instead of "corner.js" or "cvi_corners_lib.js" instead of "justcorners.js", you'll get access to additional features by the following support libraries (part of distribution):

• cvi_filter_lib.js supports image filtering capabilities. [WYSIWYG-Editor] [Home-Page]
  Provides image filter capability for Canvas (only if getImageData/setImageData is supported).
  
  filter : [{#1 filter options},{#2 filter options}...];
  options   e.g. {f: 'contrast', s: 1.5, ...}
  f == STRING filter name e.g. "invert" Default: null (required)

       "invert" Reverses all colors of the image
       "invertalpha" Reverses the transparency of the image
       "grayscale" Converts the image into grayscale
       "solarize" Solarizes the image by negating the colors
       "sepia" Applies the well-known sepia coloring to the image
       "threshold" Converts the image to black&white (s<1 == darker and s>1 == brighter)
       "posterize" Posterizes the image by quantizing each channel to a limited number of levels
       "tritone" Applies 3 colors for low|mid|high range according to the brightness of the image
       "mixrgb" Mixes the RGB channels with the other two channels
       "exposure" Simulates changing the exposure of the image
       "gamma" Standard gamma correction (s<1 == darker and s>1 == brighter)
       "brightness" Change brightness (s<1 == darker and s>1 == brighter)
       "contrast" Change contrast (s<1 == lower and s>1 == higher)
       "adjustrgba" Adjust the red & green & blue & alpha channel of the image (s == [r,g,b,a])
       "adjusthsba" Adjust hue & saturation & brightness & alpha channel of the image (s == [h,s,b,a])
       "adjustyuva" Adjust luminance & blue–yellow chrominance & red–cyan chrominance & alpha channel of the image (s == [y,u,v,a])
       "colorkey" Set alpha to 0 if pixel color values are higher than min and lower than max rgb color
       "chromakey" Set alpha to 0 if pixel hue & saturation & brightness matches
       "smooth" Smoothes the image (result is similar to bluring)
       "spinblur" Blurs by rotating the centered image
       "zoomblur" Blurs by zooming the centered image
       "motionblur" Blurs by moving the image to a defined direction
       "outline" Creates grayscaled outline images by different operators (e.g. sobel, prewitt...).
       "convolve" Use your own 3x3 matrix via option m=[[n,n,n],[n,n,n],[n,n,n]]
       "blur" Bluring the image by (in build and extendable cvi_matrix object) convolution
       "median" Smoothes grainy images by (in build and extendable cvi_matrix object) convolution
       "sharpen" Makes image sharper by (in build and extendable cvi_matrix object) convolution
       "sharper" Makes image even sharper by (in build and extendable cvi_matrix object) convolution
       "bumplt" Embosses the image by (in build and extendable cvi_matrix object) convolution
       "bumpbr" ... 

  s == FLOAT/OBJECT multiplier(s) e.g. 0-255 Defaults to... (optional)

       1         if f=="zoomblur|spinblur" Distance (px)
       1         if f=="smooth" Radius (px 1-10)
       1         if f=="posterize" Number of levels (1-16)
       1         if f=="threshold" Multiplier of 127 (0-2)
       1         if f=="brightness|contrast|gamma|exposure" Multiplier of existing value (0-255)
       [1,0]     if f=="motionblur" Distance (px) and angle (0-360)
       [auto,0]  if f=="convolve" or m!=null. Divisor of convolution result (-1==auto), 
                 useable for normalization and bias (0-255) for brightness addition
       [1,0,     if f=="outline" Divisor of convolution result, bias (0-255) 
         'name'] and operator ('sobel'|'scharr'|'prewitt'|'kirsh'|'roberts') 
       [1,1,1,1] if f=="adjustrgba" red, green, blue, alpha. Multipliers of existing values (0-255)
       [1,1,1,1] if f=="adjusthsba" hue, saturation, brightness, alpha. Multiply existing values (0-255)
       [1,1,1,1] if f=="adjustyuva" luminance, blue–yellow chrominance, red–cyan chrominance, alpha. Multiply existing values (0-255)
       [0,0,0,0,0]  f=="chromakey" hue (0-360) and hue tolerance, min saturation, min brightness, max brightness (0-100)
       [[0,0,0], if f=="colorkey" equals rgb min and rgb max triplet (0-255)
        [0,0,0]] 
       [[1,1,1], if f=="mixrgb" Mix into r, g, b with...
        [1,1,1]] ...bluegreen, redblue, greenred as triplets [0-255,0-255,0-255]
       [[0,0,0], if f=="tritone" low|mid|high range colors as...
        [0,0,0], ...rgb triplets [0-255,0-255,0-255]
        [0,0,0]] 

  m == OBJECT kernel matrix e.g. [[n,n,n],[n,n,n],[n,n,n]] Default: null (optional)
  

  
  

• cvi_istack_lib.js supports image stack capabilities. [Example-Demo]
  Provides fading image stacks for Images and CVI Effects.

  Set defaults

  cvi_istack.defaultImagearray = null; //OBJ e.g. [{source:'image.jpg'}]
cvi_istack.defaultMainwidth  = 128; //INT 80-n (px width)
cvi_istack.defaultMainheight = 128; //INT 80-n (px height)
cvi_istack.defaultPlayframes = 20; //INT 1-100 equals frames to fade (* 30 milliseconds)
cvi_istack.defaultPlaydelay  = 5000; //INT 1000-n equals milliseconds (1/1000)
cvi_istack.defaultLoadtimeout= 3000; //INT 1000-n equals milliseconds (1/1000)
cvi_istack.defaultNoiefade   = false;//BOOLEAN IE's Alpha filter produces rough edges
cvi_istack.defaultPlayscript = ''; //STRING e.g. 'cvi_bevel'|'cvi_corner'|'cvi_curl'|'cvi_edge'|'cvi_glossy'|
'cvi_glossy'|'cvi_reflex'|'cvi_slide'|'cvi_sphere'|'cvi_strip'
  

  imagearray supports source (required) and options (optional).

  Add stack

  cvi_istack.add(element, options);
  

  element  == div element

  options  e.g. {mainwidth: 128, mainheight: 128, ...}

  imagearray == OBJ Default: null
mainwidth  == INT 32 - n Default: 128
mainheight == INT 32 - n Default: 128
playframes == INT 1 - 100 Default: 20
playdelay  == INT 1000 - n Default: 5000
loadtimeout== INT 1000 - n Default: 3000
noiefade   == BOL true or false Default: false
playscript == STR Default: ''
  

  Advices: All images should have the same aspect ratio like the stack object.
  cvi_slide and cvi_strip creates generally 1:1 objects (using the larger dimension),
  cvi_sphere creates generally 1:1 objects (using the smaller dimension) and
  cvi_reflex creates objects with additional height (for the reflection).
  Hint: By adding a stack to a div element, the former content of the element will be overwritten.

  Get some informations

  FLOAT  = cvi_istack.version;
STRING = cvi_istack.released;

  Play stack

  cvi_istack.play(element);

  Pause stack

  cvi_istack.pause(element);

  Remove stack

  cvi_istack.remove(element);

  Example

  <script type="text/javascript">
  <!--
  	var photos = new Array();
  	photos = [
  		{source:'images/fire.jpg', options:'{tilt:"l",text:"fire"}' },
  		{source:'images/jeans.jpg', options:'{tilt:"r",text:"jeans"}' },
  		{source:'images/rose.jpg', options:'{tilt:"l",text:"rose"}' },
  		{source:'images/swirl.jpg', options:'{tilt:"r",text:"swirl"}' },
  		{source:'images/fruits.jpg', options:'{tilt:"l",text:"fruits"}' },
  		{source:'images/heart.jpg' }
  	];
  	
  	function init_ImageStack() {
  		cvi_glossy.defaultPreserve=true;
  		cvi_glossy.defaultTilt='left';
  		cvi_glossy.defaultFontattr= [100,100,100];
  		cvi_istack.add(document.getElementById('wrapper_div'),{
  			imagearray: photos,
  			mainwidth: 200,
  			mainheight: 200,
  			playdelay: 3000,
  			playscript: 'cvi_glossy',
  			noiefade: true
  		});
  	}
  	
  	if(window.attachEvent) {
  		window.attachEvent("onload", init_ImageStack);
  	}else {
  		window.addEventListener("load", init_ImageStack, false);
  	}
  -->
  </script>
    		

Why use Javascript Image Corners?

• Fast and easy to implement. Just add class="corner iradius[n]" to the image and your good to go.
• Don't need to spend time in an image editor creating images with corners.
• Works really well with forum avatars. Doesn't require additional server work.
• It's dead easy to change the attributes of the corners.
• Free of charge use on non-commercial and private web sites.

In older browsers, the script degrades and your visitors won't notice a thing.

History

• Added support for Internet Explorer 9

• Added bezel support for cvi_corners_lib.js and justcorners.js

• Extended distribution. Added the support libs "cvi_filter_lib.js" and "cvi_istack_lib.js"

• Added smooth border shading and shining

• Added border support for cvi_corners_lib.js and justcorners.js

• Added scriptable lib versions cvi_corner_lib.js and cvi_corners_lib.js

• Added soft shadows for Internet Explorer 6/7

• Added support for img attributes:
  id alt title src onclick
• Added Internet Explorer support for iradiae

• Added support for Internet Explorer 6/7
  (iradiae is missing and shading isn't complete)

• Added usemap support for block element surrounded images

• Added soft shadows
• Appended justcorners.js

• Initial Release

License

Corner.js, justcorners.js, cvi_corner_lib.js and cvi_corners_lib.js are distributed under this LICENSE. License permits free of charge use on non-commercial and private web sites only under special conditions (as described in the license). This license equals neither "open source" nor "public domain". There are also Commercial Software Licenses available.

YOU AGREE TO ALL CONDITIONS OF THIS LICENCE AGREEMENT CONCERNING THE USE OF THE SOFTWARE BY ACCEPTING THIS LICENCE.
IF YOU DO NOT AGREE TO ALL CONDITIONS OF THIS AGREEMENT, YOU SHALL NOT INSTALL THE SOFTWARE, OR USE IT IN OTHER WAYS.

Images used are copyrighted and are used for demonstration only.

cvi.netzgesta.de  also visit  CVI-lab, CVI-dev, S5 Reloaded and AJAX-FilmDB