Cara Membuat Image Preview Menggunakan Tombol

Image Preview ini berfungsi untuk melihat gambar dalam ukuran yang lebih bersar , dan cara kerjanya menggunakan tombol perbesar dan tombol normal , yaitu bila di klik tombol perbesar maka gambar menjadi ukuran besar dan di klik tombol normal untuk mengembalikan gambar pada posisi ukuran semula.
Jika di web atau blog anda banyak menampilkan gambar , cara ini dapat jadi alternatif untuk dimanfaatkan agar pengunjung bisa melihat gambar anda secara jelas.

Berikut contoh bentuk Image Preview menggunakan tombol.














 

Widget
















 

Sticky Bar

Jika anda tertarik untuk membuatnya , silahkan ikuti langkah berikut ini :

1. Login ke akun Blogger anda
2. Pilih Template
3. Pilih Edit HTML
4. Tekan tombol Ctrl+F
5. Cari kode </head>
6. Massukan script dibawah ini tepat diatas kode </head>

<script type='text/javascript'>function gambarbesar1(){document.getElementById("gambar1").height="200"; document.getElementById("gambar1").width="200";}function gambarnormal1(){document.getElementById("gambar1").height="100"; document.getElementById("gambar1").width="120";}</script><style type='text/css'>div.galleryagambar{position:relative; margin: 2px; padding:8px; border: 2px solid #ccc; background-color:#E3E3E3; float:left;}div.gallerya{position:relative; margin: 2px; border: 2px solid #D8D8D8; background-color:#ECECEC; float:left; text-align: center;}div.gallerya img{ border: 2px solid #ccc; margin-top: 5px;}div.gallerya a:hover img{ border: 2px solid #000000;/* for IE */ filter:alpha(opacity=40);/* CSS3 standard */ opacity:0.4;}div.labela{ border: 0px solid #D2D2D2; background-color:#ccc; text-align: center; font-weight: bold; height: 12px;width:120px; padding:3px;}</style>

Catatan :
Untuk menambah gambar , anda tinggal menambah kode yang berwarna merah dan simpan dibawah kode yang berwarna merah tersebut tapi ganti nomor yang berwarna biru menjadi nomor 2 dan seterusnya.

7. Klik simpan template

Langkah selanjutnya anda tinggal menambahkan kode HTML pada saat menulis artikel.
Jangan lupa tambahkan kode HTML pada bagian HTML bukan Compose.
Cara ini bila gambar akan ditampilkan pada halaman posting.

Tapi bila anda ingin menampilkan Gallery pada sidebar blog anda , berarti anda tinggal menambah gadget.
Silahkan ikuti langkah berikut ini :

1. Pilih Tata Letak >> Tambah Gadget >> HTML/JavaScript
2. Masukkan script dibawah ini

<div class="galleryagambar">
<div class="gallerya"><table border="0" width=""><tbody><tr><td bgcolor="#ECECEC"><a href="http://AlamatLinkAnda" target="_blank"><img height="100" id="gambar1" src="URL Gambar" width="120" /></a><br /><div align="center"><input onclick="gambarbesar1()" type="button" value="Perbesar" /><input onclick="gambarnormal1()" type="button" value="Normal" /></div></td></tr><tr><td bgcolor="#ccc"><div class="labela">Label Gambar</div></td></tr></tbody></table></div>
</div>

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Ditulis oleh : Dhecun Blog
Judul : Cara Membuat Image Preview Menggunakan Tombol
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<b>Dhecun Blog : <a href='http://dhecun.blogspot.com/2012/12/cara-membuat-image-preview-menggunakan.html'>Cara Membuat Image Preview Menggunakan Tombol</a></b>

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Widget Populer

Widget Zoom Detail Gambar

.magnifyarea{ /* CSS to add shadow to magnified image. Optional */
box-shadow: 5px 5px 7px #818181;
-webkit-box-shadow: 5px 5px 7px #818181;
-moz-box-shadow: 5px 5px 7px #818181;
filter: progid:DXImageTransform.Microsoft.dropShadow(color=#818181, offX=5, offY=5, positive=true);
background: white;
}

</style>

/***********************************************
* Frame dcode

***********************************************/

</script>

jQuery(document).ready(function($){

$('#image1').addimagezoom({
  zoomrange: [3, 30],
  magnifiersize: [500,500],
  magnifierpos: 'right',
  cursorshade: true,
  largeimage: 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSjU2O8BeMy8MvPmMYlB_xUs08Ebhn8Brb2wbGfp52nkvrSLS8vPCtxu_iHbXQOSjzpn14BZ5B7F8n8TOjDClFgh2mLenlkAzGT_4AP5qrFQhNFtNaJnUjWYTpl-RCEWnmrog05W7JuHM/s1600/DhecunBlog.png' //<-- No comma after last option!
 })

$('#image2').addimagezoom({
  zoomrange: [5, 5],
  magnifiersize: [400,400],
  magnifierpos: 'right',
  cursorshade: true,
  cursorshadecolor: 'pink',
  cursorshadeopacity: 0.3,
  cursorshadeborder: '1px solid red',
  largeimage: 'alamat gambar 2' //<-- No comma after last option!
 })

$('#image3').addimagezoom()

})

</script>

// feb 2 12
// modifikasi script

jQuery.noConflict()

jQuery('head').append('<style type="text/css">.featuredimagezoomerhidden {visibility: hidden!important;}</style>');

var featuredimagezoomer={
 loadinggif: 'spinningred.gif', //full path or URL to "loading" gif
 magnifycursor: 'crosshair', //Value for CSS's 'cursor' attribute, added to original image

/////NO NEED TO EDIT BEYOND HERE////////////////
 dsetting: { //default settings
   magnifierpos: 'right',
   magnifiersize:[200, 200],
   cursorshadecolor: '#fff',
   cursorshadeopacity: 0.3,
   cursorshadeborder: '1px solid black',
   cursorshade: false,
   leftoffset: 15, //offsets here are used (added to) the width of the magnifyarea when
   rightoffset: 10 //calculating space requirements and to position it visa vis any drop shadow
  },
 isie: (function(){/*@cc_on @*//*@if(@_jscript_version >= 5)return true;@end @*/return false;})(), //is this IE?

showimage: function($, $tracker, $mag, showstatus){
  var specs=$tracker.data('specs'), d=specs.magpos, fiz=this;
  var coords=$tracker.data('specs').coords //get coords of tracker (from upper corner of document)
  specs.windimensions={w:$(window).width(), h:$(window).height()}; //remember window dimensions
  var magcoords={} //object to store coords magnifier DIV should move to
  magcoords.left = coords.left + (d === 'left'? -specs.magsize.w - specs.lo : $tracker.width() + specs.ro);
  //switch sides for magnifiers that don't have enough room to display on the right if there's room on the left:
  if(d!=='left' && magcoords.left + specs.magsize.w + specs.lo >= specs.windimensions.w && coords.left - specs.magsize.w >= specs.lo){
   magcoords.left = coords.left - specs.magsize.w - specs.lo;
  } else if(d==='left' && magcoords.left < specs.ro) { //if there's no room on the left, move to the right
   magcoords.left = coords.left + $tracker.width() + specs.ro;
  }
  $mag.css({left: magcoords.left, top:coords.top}).show(); //position magnifier DIV on page
  specs.$statusdiv.html('Current Zoom: '+specs.curpower+'<div style="font-size:100%">Use Mouse Wheel to Zoom In/Out</div>');
  if (showstatus) //show status DIV? (only when a range of zoom is defined)
   fiz.showstatusdiv(specs, 400, 2000);
 },

hideimage: function($tracker, $mag, showstatus){
  var specs=$tracker.data('specs');
  $mag.hide();
  if (showstatus)
   this.hidestatusdiv(specs);
 },

showstatusdiv: function(specs, fadedur, showdur){
  clearTimeout(specs.statustimer)
  specs.$statusdiv.fadeIn(fadedur) //show status div
  specs.statustimer=setTimeout(function(){featuredimagezoomer.hidestatusdiv(specs)}, showdur) //hide status div after delay
 },

hidestatusdiv: function(specs){
  specs.$statusdiv.stop(true, true).hide()
 },

getboundary: function(b, val, specs){ //function to set x and y boundaries magnified image can move to (moved outside moveimage for efficiency)
  if (b=="left"){
   var rb=-specs.imagesize.w*specs.curpower+specs.magsize.w
   return (val>0)? 0 : (val<rb)? rb : val
  }
  else{
   var tb=-specs.imagesize.h*specs.curpower+specs.magsize.h
   return (val>0)? 0 : (val<tb)? tb : val
  }
 },

moveimage: function($tracker, $maginner, $cursorshade, e){
  var specs=$tracker.data('specs'), csw = Math.round(specs.magsize.w/specs.curpower), csh = Math.round(specs.magsize.h/specs.curpower),
  csb = specs.csborder, fiz = this, imgcoords=specs.coords, pagex=(e.pageX || specs.lastpagex), pagey=(e.pageY || specs.lastpagey),
  x=pagex-imgcoords.left, y=pagey-imgcoords.top;
  $cursorshade.css({ // keep shaded area sized and positioned proportionately to area being magnified
   visibility: '',
   width: csw,
   height: csh,
   top: Math.min(specs.imagesize.h-csh-csb, Math.max(0, y-(csb+csh)/2)) + imgcoords.top,
   left: Math.min(specs.imagesize.w-csw-csb, Math.max(0, x-(csb+csw)/2)) + imgcoords.left
  });
  var newx=-x*specs.curpower+specs.magsize.w/2 //calculate x coord to move enlarged image
  var newy=-y*specs.curpower+specs.magsize.h/2
  $maginner.css({left:fiz.getboundary('left', newx, specs), top:fiz.getboundary('top', newy, specs)})
  specs.$statusdiv.css({left:pagex-10, top:pagey+20})
  specs.lastpagex=pagex //cache last pagex value (either e.pageX or lastpagex), as FF1.5 returns undefined for e.pageX for "DOMMouseScroll" event
  specs.lastpagey=pagey
 },

magnifyimage: function($tracker, e, zoomrange){
  var delta=e.detail? e.detail*(-120) : e.wheelDelta //delta returns +120 when wheel is scrolled up, -120 when scrolled down
  var zoomdir=(delta<=-120)? "out" : "in"
  var specs=$tracker.data('specs')
  var magnifier=specs.magnifier, od=specs.imagesize, power=specs.curpower
  var newpower=(zoomdir=="in")? Math.min(power+1, zoomrange[1]) : Math.max(power-1, zoomrange[0]) //get new power
  var nd=[od.w*newpower, od.h*newpower] //calculate dimensions of new enlarged image within magnifier
  magnifier.$image.css({width:nd[0], height:nd[1]})
  specs.curpower=newpower //set current power to new power after magnification
  specs.$statusdiv.html('Current Zoom: '+specs.curpower)
  this.showstatusdiv(specs, 0, 500)
  $tracker.trigger('mousemove')
 },

init: function($, $img, options){
  var setting=$.extend({}, this.dsetting, options), w = $img.width(), h = $img.height(), o = $img.offset(),
  fiz = this, $tracker, $cursorshade, $statusdiv, $magnifier, lastpage = {pageX: 0, pageY: 0};
  setting.largeimage = setting.largeimage || $img.get(0).src;
  $magnifier=$('<div class="magnifyarea" style="position:absolute;width:'+setting.magnifiersize[0]+'px;height:'+setting.magnifiersize[1]+'px;left:-10000px;top:-10000px;visibility:hidden;overflow:hidden;border:1px solid black;" />')
   .append('<div style="position:relative;left:0;top:0;" />')
   .appendTo(document.body) //create magnifier container
  //following lines - create featured image zoomer divs, and absolutely positioned them for placement over the thumbnail and each other:
  if(setting.cursorshade){
   $cursorshade = $('<div class="cursorshade" style="visibility:hidden;position:absolute;left:0;top:0;" />')
    .css({border: setting.cursorshadeborder, opacity: setting.cursorshadeopacity, backgroundColor: setting.cursorshadecolor})
    .appendTo(document.body);
  } else {
   $cursorshade = $('<div />'); //dummy shade div to satisfy $tracker.data('specs')
  }
  $statusdiv = $('<div class="zoomstatus preloadevt" style="position:absolute;visibility:hidden;left:0;top:0;" />')
   .html('<img src="'+this.loadinggif+'" />')
   .appendTo(document.body); //create DIV to show "loading" gif/ "Current Zoom" info
  $tracker = $('<div class="zoomtracker" style="cursor:progress;position:absolute;left:'+o.left+'px;top:'+o.top+'px;height:'+h+'px;width:'+w+'px;" />')
   .css({backgroundImage: (this.isie? 'url(cannotbe)' : 'none')})
   .appendTo(document.body);
  $(window).resize(function(){ //in case resizing the window repostions the image
    var o = $img.offset();
    $tracker.css({left: o.left, top: o.top});
   });

function getspecs($maginner, $bigimage){ //get specs function
   var magsize={w:$magnifier.width(), h:$magnifier.height()}
   var imagesize={w:w, h:h}
   var power=(setting.zoomrange)? setting.zoomrange[0] : ($bigimage.width()/w).toFixed(5)
   $tracker.data('specs', {
    $statusdiv: $statusdiv,
    statustimer: null,
    magnifier: {$outer:$magnifier, $inner:$maginner, $image:$bigimage},
    magsize: magsize,
    magpos: setting.magnifierpos,
    imagesize: imagesize,
    curpower: power,
    coords: getcoords(),
    csborder: $cursorshade.outerWidth(),
    lo: setting.leftoffset,
    ro: setting.rightoffset
   })
  }

function getcoords(){ //get coords of thumb image function
   var offset=$tracker.offset() //get image's tracker div's offset from document
   return {left:offset.left, top:offset.top}
  }

$tracker.mouseover(function(e){
     $cursorshade.add($magnifier).add($statusdiv).removeClass('featuredimagezoomerhidden');
     $tracker.data('premouseout', false);
   }).mouseout(function(e){
     $cursorshade.add($magnifier).add($statusdiv.not('.preloadevt')).addClass('featuredimagezoomerhidden');
     $tracker.data('premouseout', true);
   }).mousemove(function(e){ //save tracker mouse position for initial magnifier appearance, if needed
    lastpage.pageX = e.pageX;
    lastpage.pageY = e.pageY;
   });

$tracker.one('mouseover', function(e){
   var $maginner=$magnifier.find('div:eq(0)')
   var $bigimage=$('<img src="'+setting.largeimage+'"/>').appendTo($maginner)
   var showstatus=setting.zoomrange && setting.zoomrange[1]>setting.zoomrange[0]
   $img.css({opacity:0.1}) //"dim" image while large image is loading
   var imgcoords=getcoords()
   $statusdiv.css({left:imgcoords.left+w/2-$statusdiv.width()/2, top:imgcoords.top+h/2-$statusdiv.height()/2, visibility:'visible'})
   $bigimage.bind('loadevt', function(){ //magnified image ONLOAD event function (to be triggered later)
    $img.css({opacity:1}) //restore thumb image opacity
    $statusdiv.empty().css({border:'1px solid black', background:'#C0C0C0', padding:'4px', font:'bold 13px Arial', opacity:0.8}).hide().removeClass('preloadevt');
    if($tracker.data('premouseout')){
     $statusdiv.addClass('featuredimagezoomerhidden');
    }
    if (setting.zoomrange){ //if set large image to a specific power
     var nd=[w*setting.zoomrange[0], h*setting.zoomrange[0]] //calculate dimensions of new enlarged image
     $bigimage.css({width:nd[0], height:nd[1]})
    }
    getspecs($maginner, $bigimage) //remember various info about thumbnail and magnifier
    $magnifier.css({display:'none', visibility:'visible'})
    $tracker.mouseover(function(e){ //image onmouseover
     $tracker.data('specs').coords=getcoords() //refresh image coords (from upper left edge of document)
     fiz.showimage($, $tracker, $magnifier, showstatus)
    })
    $tracker.mousemove(function(e){ //image onmousemove
     fiz.moveimage($tracker, $maginner, $cursorshade, e)
    })
    if (!$tracker.data('premouseout')){
     fiz.showimage($, $tracker, $magnifier, showstatus);
     fiz.moveimage($tracker, $maginner, $cursorshade, lastpage);
    }
    $tracker.mouseout(function(e){ //image onmouseout
     fiz.hideimage($tracker, $magnifier, showstatus)
    }).css({cursor: fiz.magnifycursor});
    if (setting.zoomrange && setting.zoomrange[1]>setting.zoomrange[0]){ //if zoom range enabled
     $tracker.bind('DOMMouseScroll mousewheel', function(e){
      fiz.magnifyimage($tracker, e, setting.zoomrange);
      e.preventDefault();
     });
    }
   }) //end $bigimage onload
   if ($bigimage.get(0).complete){ //if image has already loaded (account for IE, Opera not firing onload event if so)
    $bigimage.trigger('loadevt')
   }
   else{
    $bigimage.bind('load', function(){$bigimage.trigger('loadevt')})
   }
  })
 },

iname: (function(){var itag = jQuery('<img />'), iname = itag.get(0).tagName; itag.remove(); return iname;})()
};

jQuery.fn.addimagezoom=function(options){
 var $=jQuery;
 return this.each(function(){ //return jQuery obj
  if (this.tagName !== featuredimagezoomer.iname)
   return true; //skip to next matched element
  featuredimagezoomer.init($, $(this), options);
 });
}
</script>
<p><img id="image1" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSjU2O8BeMy8MvPmMYlB_xUs08Ebhn8Brb2wbGfp52nkvrSLS8vPCtxu_iHbXQOSjzpn14BZ5B7F8n8TOjDClFgh2mLenlkAzGT_4AP5qrFQhNFtNaJnUjWYTpl-RCEWnmrog05W7JuHM/s1600/DhecunBlog.png" style="width:170px;height:170px" /><p></p></p> 
<center>Mainkan roda mouse anda untuk membuat tampilan lebih besar</center>
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<div style="text-align:center; font-size:0.75em">
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#pageshare .sbutton {float:left;clear:both;margin:5px 5px 0 5px;}

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.FBConnectButton_Small, .FBConnectButton_RTL_Small {width:49px !important; -moz-border-radius:3px;-webkit-border-radius:3px;}

.FBConnectButton_Small .FBConnectButton_Text {padding:2px 2px 3px !important;-moz-border-radius:3px;-webkit-border-radius:3px;font-size:8px;}

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