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超酷超绚精美图片展示效果代码
2009-11-26 图片特效 303℃
<p> <meta content="text/html; charset=gb2312" http-equiv="Content-Type" /><style type="text/css"> html { overflow: hidden; } body { margin: 0px; padding: 0px; background: #000; position: absolute; width: 100%; height: 100%; cursor: crosshair; } #diapoContainer { position: absolute; left: 10%; top: 10%; width: 80%; height: 80%; background: #222; overflow: hidden; } .imgDC { position: absolute; cursor: pointer; border: #000 solid 2px; filter: alpha(opacity=90); opacity: 0.9; visibility: hidden; } .spaDC { position: absolute; filter: alpha(opacity=20); opacity: 0.2; background: #000; visibility: hidden; } .imgsrc { position: absolute; width: 120px; height: 67px; visibility: hidden; margin: 4%; } #bkgcaption { position: absolute; bottom: 0px; left: 0px; width: 100%; height: 6%; background:#1a1a1a; } #caption { position: absolute; font-family: arial, helvetica, verdana, sans-serif; white-space: nowrap; color: #fff; bottom: 0px; width: 100%; left: -10000px; text-align: center; }</style><script type="text/javascript"> var xm; var ym; /* ==== onmousemove event ==== */ document.onmousemove = function(e){ if(window.event) e=window.event; xm = (e.x || e.clientX); ym = (e.y || e.clientY); } /* ==== window resize ==== */ function resize() { if(diapo)diapo.resize(); } onresize = resize; /* ==== opacity ==== */ setOpacity = function(o, alpha){ if(o.filters)o.filters.alpha.opacity = alpha * 100; else o.style.opacity = alpha; } //////////////////////////////////////////////////////////////////////////////////////////// /* ===== encapsulate script ==== */ diapo = { O : [], DC : 0, img : 0, txt : 0, N : 0, xm : 0, ym : 0, nx : 0, ny : 0, nw : 0, nh : 0, rs : 0, rsB : 0, zo : 0, tx_pos : 0, tx_var : 0, tx_target : 0, /////// script parameters //////// attraction : 2, acceleration : .9, dampening : .1, zoomOver : 2, zoomClick : 6, transparency : .8, font_size: 18, ////////////////////////////////// /* ==== diapo resize ==== */ resize : function(){ with(this){ nx = DC.offsetLeft; ny = DC.offsetTop; nw = DC.offsetWidth; nh = DC.offsetHeight; txt.style.fontSize = Math.round(nh / font_size) + "px"; if(Math.abs(rs-rsB)<100) for(var i=0; i<N; i++) O[i].resize(); rsB = rs; } }, /* ==== create diapo ==== */ CDiapo : function(o){ /* ==== init variables ==== */ this.o = o; this.x_pos = this.y_pos = 0; this.x_origin = this.y_origin = 0; this.x_var = this.y_var = 0; this.x_target = this.y_target = 0; this.w_pos = this.h_pos = 0; this.w_origin = this.h_origin = 0; this.w_var = this.h_var = 0; this.w_target = this.h_target = 0; this.over = false; this.click = false; /* ==== create shadow ==== */ this.spa = document.createElement("span"); this.spa.className = "spaDC"; diapo.DC.appendChild(this.spa); /* ==== create thumbnail image ==== */ this.img = document.createElement("img"); this.img.className = "imgDC"; this.img.src = o.src; this.img.O = this; diapo.DC.appendChild(this.img); setOpacity(this.img, diapo.transparency); /* ==== mouse events ==== */ this.img.onselectstart = new Function("return false;"); this.img.ondrag = new Function("return false;"); this.img.onmouseover = function(){ diapo.tx_target=0; diapo.txt.innerHTML=this.O.o.alt; this.O.over=true; setOpacity(this,this.O.click?diapo.transparency:1); } this.img.onmouseout = function(){ diapo.tx_target=-diapo.nw; this.O.over=false; setOpacity(this,diapo.transparency); } this.img.onclick = function() { if(!this.O.click){ if(diapo.zo && diapo.zo != this) diapo.zo.onclick(); this.O.click = true; this.O.x_origin = (diapo.nw - (this.O.w_origin * diapo.zoomClick)) / 2; this.O.y_origin = (diapo.nh - (this.O.h_origin * diapo.zoomClick)) / 2; diapo.zo = this; setOpacity(this,diapo.transparency); } else { this.O.click = false; this.O.over = false; this.O.resize(); diapo.zo = 0; } } /* ==== rearrange thumbnails based on "imgsrc" images position ==== */ this.resize = function (){ with (this) { x_origin = o.offsetLeft; y_origin = o.offsetTop; w_origin = o.offsetWidth; h_origin = o.offsetHeight; } } /* ==== animation function ==== */ this.position = function (){ with (this) { /* ==== set target position ==== */ w_target = w_origin; h_target = h_origin; if(over){ /* ==== mouse over ==== */ w_target = w_origin * diapo.zoomOver; h_target = h_origin * diapo.zoomOver; x_target = diapo.xm - w_pos / 2 - (diapo.xm - (x_origin + w_pos / 2)) / (diapo.attraction*(click?10:1)); y_target = diapo.ym - h_pos / 2 - (diapo.ym - (y_origin + h_pos / 2)) / (diapo.attraction*(click?10:1)); } else { /* ==== mouse out ==== */ x_target = x_origin; y_target = y_origin; } if(click){ /* ==== clicked ==== */ w_target = w_origin * diapo.zoomClick; h_target = h_origin * diapo.zoomClick; } /* ==== magic spring equations ==== */ x_pos += x_var = x_var * diapo.acceleration + (x_target - x_pos) * diapo.dampening; y_pos += y_var = y_var * diapo.acceleration + (y_target - y_pos) * diapo.dampening; w_pos += w_var = w_var * (diapo.acceleration * .5) + (w_target - w_pos) * (diapo.dampening * .5); h_pos += h_var = h_var * (diapo.acceleration * .5) + (h_target - h_pos) * (diapo.dampening * .5); diapo.rs += (Math.abs(x_var) + Math.abs(y_var)); /* ==== html animation ==== */ with(img.style){ left = Math.round(x_pos) + "px"; top = Math.round(y_pos) + "px"; width = Math.round(Math.max(0, w_pos)) + "px"; height = Math.round(Math.max(0, h_pos)) + "px"; zIndex = Math.round(w_pos); } with(spa.style){ left = Math.round(x_pos + w_pos * .1) + "px"; top = Math.round(y_pos + h_pos * .1) + "px"; width = Math.round(Math.max(0, w_pos * 1.1)) + "px"; height = Math.round(Math.max(0, h_pos * 1.1)) + "px"; zIndex = Math.round(w_pos); } } } }, /* ==== main loop ==== */ run : function(){ diapo.xm = xm - diapo.nx; diapo.ym = ym - diapo.ny; /* ==== caption anim ==== */ diapo.tx_pos += diapo.tx_var = diapo.tx_var * .9 + (diapo.tx_target - diapo.tx_pos) * .02; diapo.txt.style.left = Math.round(diapo.tx_pos) + "px"; /* ==== images anim ==== */ for(var i in diapo.O) diapo.O[i].position(); /* ==== loop ==== */ setTimeout("diapo.run();", 16); }, /* ==== load images ==== */ images_load : function(){ // ===== loop until all images are loaded ===== var M = 0; for(var i=0; i<diapo.N; i++) { if(diapo.img[i].complete) { diapo.img[i].style.position = "relative"; diapo.O[i].img.style.visibility = "visible"; diapo.O[i].spa.style.visibility = "visible"; M++; } resize(); } if(M<diapo.N) setTimeout("diapo.images_load();", 128); }, /* ==== init script ==== */ init : function() { diapo.DC = document.getElementById("diapoContainer"); diapo.img = diapo.DC.getElementsByTagName("img"); diapo.txt = document.getElementById("caption"); diapo.N = diapo.img.length; for(i=0; i<diapo.N; i++) diapo.O.push(new diapo.CDiapo(diapo.img[i])); diapo.resize(); diapo.tx_pos = -diapo.nw; diapo.tx_target = -diapo.nw; diapo.images_load(); diapo.run(); } } </script></p> <div id="diapoContainer"><img class="imgsrc" alt="Reconsider your Existence" src="/images/tx/s1.jpg" /> <img class="imgsrc" alt="Something Needs to be Discovered" src="/images/tx/s2.jpg" /> <img class="imgsrc" alt="They Said Very Little" src="/images/tx/s3.jpg" /> <img class="imgsrc" alt="Only in Your Mind" src="/images/tx/s4.jpg" /> <img class="imgsrc" alt="The Power of Imagination" src="/images/tx/s5.jpg" /> <img class="imgsrc" alt="Objectivity is Impossible" src="/images/tx/s6.jpg" /> <img class="imgsrc" alt="Cleaning Up Operation" src="/images/tx/s7.jpg" /> <img class="imgsrc" alt="Arbitrary Contents" src="/images/tx/s8.jpg" /> <div id="bkgcaption"> </div> <div id="caption"> </div> </div> <script type="text/javascript"> /* ==== start script ==== */ function dom_onload() { if(document.getElementById("diapoContainer")) diapo.init(); else setTimeout("dom_onload();", 128); } dom_onload(); </script>
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