FERRAMENTA HTML BLOG *

Efeito foto zoom

Efeito foto zoom, CLIQUE AQUI PARA VER O RESULTADO
Efeito foto zoom

e>our noblest faculties - Interactive DHTML art-demos<br />
<br />
<br />
<style type="text/css">
 html {
  overflow: hidden;
 }
 body {
  background: #222;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  margin: 0px;
  padding: 0px;
  color: #fff;
  font-family: verdana, arial, helvetica, sans-serif;
  filter: alpha(opacity=100);
 }
 #screen {
  position:absolute;
  left: 10%;
  top: 10%;
  width: 80%;
  height: 80%;
  overflow: hidden;
  background: #000;
 }
 #grid {
  position:absolute;
 }
 #grid img {
  position: absolute;
  cursor: pointer;
  left: -10000px;
  -ms-interpolation-mode:nearest-neighbor;
 }
 #grid .over {
  border: #fff solid;
 }
 #notice {
  position: absolute;
  font-size: 0.7em;
  left: 1em;
  top: 1em;
  width: 15em;
  background: #000;
  filter: alpha(opacity=70);
  opacity: 0.7;
  cursor: help;
  padding: 0.2em;
 }
 #notice span {
  color: #f80;
 }
 #title {
  position: absolute;
  font-size: 1em;
  left: 0px;
  bottom: 90%;
  width: 100%;
  font-weight: bold;
  text-align: center;
  color: #fff;
 }
 #caption {
  position: absolute;
  font-size: 1em;
  left: 0px;
  top: 90%;
  width: 100%;
  font-weight: bold;
  text-align: center;
  color: #fff;
 }
</style><br />
<br />
<script type="text/javascript">
// ===============================================================
//                     --- images grid ---
// script written by Gerard Ferrandez - Ge-1-doot - November 2006
// http://www.dhteumeuleu.com
// ===============================================================
//

var O = [];
var iL;
var scr;
var grd;
var grs;
var tit;
var cap;
var xm = 0;
var ym = 0;
var nx = 0;
var ny = 0;
var nw = 0;
var nh = 0;
var cx = 0;
var cy = 0;
var cz = .2;
var Tw = 0;
var Th = 0;
var X  = 0;
var Y  = 0;
var F  = false;
var Fo = false;
var NK = 0;

///////////////////////////////////////////////////////////////////////////////
var ZM = .8;      // init zoom
var NX = 5;      // grid X
var NY = 5;      // grid Y
var NB = 1.2;    // border size
var Mz = NX * 10; // max zoom
var mz = .1;     // min zoom

var path   = "../images/"; // path

var images = [
//    source, title, caption
 ["","- 01 -","the most dangerous error"],
 ["","- 02 -","this world of limitations"],
 ["","- 03 -","as simple as monotony"],
 ["eye.jpg","- 04 -","the inexhaustible abundance of beauty"],
 ["p118.jpg","- 05 -","unmentionable circumstances"],
 ["slide72.jpg","- 06 -","mechanical art"],
 ["w71.jpg","- 07 -","playing dead in the presence of danger"],
 ["b188.jpg","- 08 -","heroic suffering"],
 ["poutb.jpg","- 09 -","metaphysically just"],
 ["bde.jpg","- 10 -","the highest pretensions"],
 ["p117.jpg","- 11 -","a mere matter of ornament"],
 ["slide76.jpg","- 12 -","In the hands of one man"],
 ["trans.jpg","- 13 -","leaving out particularities"],
 ["maskR.jpg","- 14 -","The advent of mass media"],
 ["bspi.jpg","- 15 -","a mirror image"],
 ["nut.jpg","- 16 -","the expectations of senders and recipients"],
 ["v264.jpg","- 17 -","to be aware of one's own mind"],
 ["ca.jpg","- 18 -","liberal trade"],
 ["board.jpg","- 19 -","a suicidal gesture"],
 ["b764.jpg","- 20 -","the greatness of the genius"],
 ["li.jpg","- 21 -","my phenomenological perspective"],
 ["tub.jpg","- 22 -","devotional manuscripts"],
 ["screen.jpg","- 23 -","to strike the imagination"],
 ["sky.jpg","- 24 -",""The road of excess ...""],
 ["screens.jpg","- 25 -","truth becomes fiction"]
];
///////////////////////////////////////////////////////////////////////////////

/* ================== mouse move ====================*/
document.onmousemove = function(e)
{
 if (!F)
 {
  if (window.event)
  {
   e = window.event;
  }
  xm = Math.min(nw, Math.max(0, (e.x || e.clientX) - nx));
  ym = Math.min(nh, Math.max(0, (e.y || e.clientY) - ny));
 }
}

/* ==================== resize ===================== */
function resize()
{
 nx = scr.offsetLeft;
 ny = scr.offsetTop;
 nw = scr.offsetWidth;
 nh = scr.offsetHeight;
 Tw = nw * cz;
 Th = nh * cz;
 for (var i in O)
 {
  O[i].resize();
 }
}

onresize = resize;

/* ============= mouseWheel - IE/Mozilla ============ */
function scroll(e)
{
 if (!F)
 {
  var z = 0;
  if (e)
  {
   /* Moz */
   if (e.preventDefault) e.preventDefault();
   z = (e.detail > 0) ? 1 :  - 1;
  }
  else
  {
   /* IE */
   z = (event.wheelDelta < 0) ? 1 :  - 1;
  }
  if (z > 0)
  {
   if (ZM < Mz)
   {
    /* zoom in */
    ZM *= 1.2;
   }
  }
  else
  {
   if (ZM > mz)
   {
    /* zoom out */
    ZM *= .8;
   }
  }
 }
 else
 {
  /* unlock image */
  F = false;
 }
 return false;
}

if (window.addEventListener)
{
 /* Moz */
 window.addEventListener('DOMMouseScroll', scroll, false);
}
else
{
 /* IE */
 document.onmousewheel = scroll;
}

/* =============== images constructor ================= */
function Img(n, x, y)
{
 this.x      = x;
 this.y      = y;
 this.n      = n;
 this.loaded = false;
 
 /* create image */
 this.img        = document.createElement("img");
 this.img.obj    = this;
 this.img.src    = document.getElementById('loading').src;
 grd.appendChild(this.img);
 this.ims = this.img.style;
 
 /* preload */
 this.pre        = new Image();
 this.pre.obj    = this;
 this.pre.onload = function()
 {
  this.obj.loaded     = true;
  this.obj.img.src    = this.src;
 }
 this.pre.src    = path + images[n % iL][0];
  
 /* mouse events */
 this.img.ondrag        = function() { return false; }
 this.img.onselectstart = function() { return false; }
 this.img.ondblclick    = this.img.onmousedown;
 
 /* onclick image */
 this.img.onmousedown = function()
 {
  if (this.obj.loaded)
  {
   if (F)
   {
    /* zoom out */
    ZM = NK;
    F  = false;
   }
   else
   {
    /* zoom in */
    F  = this;
    NK = ZM;
    ZM = NX + .1;
    xm = (((nw / NB) * .5) / NX) + F.obj.x * nw / NX;
    ym = (((nh / NB) * .5) / NY) + F.obj.y * nh / NY;
   }
  }
  return false;
 }
 
 /* update text image */
 this.img.onmouseover = function()
 {
  if(Fo)
  {
   Fo.obj.border(false);
  }
  if (this.obj.loaded)
  {
   var i = images[this.obj.n % iL];
   tit.innerHTML = i[1];
   cap.innerHTML = i[2];
   Fo = this;
   Fo.obj.border(true);
  }
  else
  {
   tit.innerHTML = "alex";
   cap.innerHTML = "";
  }
 }
 
 /* resize image */
 this.resize = function()
 {
  this.ims.left   = Math.round(NB * this.x * Tw / NX) + 'px';
  this.ims.top    = Math.round(NB * this.y * Th / NY) + 'px';
  this.ims.width  = Math.round(Tw / NX) + 'px';
  this.ims.height = Math.round(Th / NY) + 'px';
  if(this == Fo.obj)
  {
   this.border(true);
  }
 }
 /* borderSize */
 this.border = function(over)
 {
  var b = 0;
  var m = 0;
  if (over)
  {
   b = Math.round(((NB * Th / NY) - (Th / NY)) * .5);
   m = 2 - b;
   this.img.className = "over";
  }
  else
  {
   this.img.className = "";
  }
  this.ims.borderWidth = b + 'px';
  this.ims.marginLeft  = m + 'px';
  this.ims.marginTop   = m + 'px';
 }
}

/* =============== main loop ==================== */
function run()
{
 /* zoom speed */
 var vz = (ZM - cz) * .05;
 if (Math.abs(vz) > .002)
 {
  resize();
 }
 else
 {
  vz = 0;
 }
 
 /* soften move */
 cz += vz;
 cx += (xm - cx) * .08;
 cy += (ym - cy) * .08;
 
 /* move grid */
 grs.left = Math.round((nw * .5) - (NB * cx * Tw / nw)) + 'px';
 grs.top  = Math.round((nh * .5) - (NB * cy * Th / nh)) + 'px';
 
 setTimeout(run, 16);
}

/* =================== start ==================== */
onload = function()
{
 grd = document.getElementById("grid");
 grs = grd.style;
 scr = document.getElementById("screen");
 tit = document.getElementById("title");
 cap = document.getElementById("caption");
 iL  = images.length;
 
 /* create grid */
 var k = 0;
 for (var y = 0; y < NY; y++)
 {
  for (var x = 0; x < NX; x++)
  {
   O.push(new Img(k++, x, y));
  }
 }
 
 /* run */
 resize();
 cx = xm = nw / 2;
 cy = ym = nh / 2;
 run();
 /* hide notice */
 setTimeout( function () {
  document.getElementById('notice').style.visibility = 'hidden';
 }, 30000);
}
</script>

</div><div id="notice" onclick="this.style.visibility='hidden';">

instructions:

<ul>
<li>Mouse: move</li>
<li>Click: zoom image</li>
<li>Wheel: zoom in/out</li>
</ul></div></div><div id="title">

</div><div id="caption">

</div><img alt="" id="loading" src=" COLOQUE AQUI O ENDEREÇO DA IMAGEM " style="visibility: hidden;" />

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