/*
	
	AnyChart.Com Source Code License Agreement
	
	Copyright(c) 2007 AnyChart.Com. All rights reserved.
	
	Please read this Source Code License Agreement carefully before using the source code.
	
	Sibental, Inc. DBA AnyChart.Com grants to you a perpetual, worldwide, non-exclusive, 
	no-charge, royalty-free, irrevocable copyright license, to reproduce, prepare derivative 
	works of, publicly display, publicly perform, and distribute this source code and such 
	derivative works in source or object code form without any attribution requirements.
	
	The name "AnyChart.Com" must not be used to endorse or promote products derived from 
	the source code without prior written permission. 
	
	You agree to indemnify, hold harmless and defend AnyChart.Com from and against any loss, 
	damage, claims or lawsuits, including attorney's fees that arise or result from your use 
	or distribution of the source code.
	
	
	THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT ANY TECHNICAL SUPPORT 
	OR ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
	ALSO, THERE IS NO WARRANTY OF NON-INFRINGEMENT, TITLE OR QUIET ENJOYMENT. IN NO EVENT 
	SHALL ANYCHART.COM OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
	OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
	OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
	SOURCE CODE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/
 
if (Browser == null) var Browser = {};
if (Browser.isIE == undefined ) Browser.isIE = /(msie|internet explorer)/i.test(navigator.userAgent);

/**
 * Class for working with browser printing
 * @see http://www.anychart.com/blog/projects/acprintmanagerlibrary/
 * @version 0.1
 * @author Alex Batsuev (alex(at)sibental(dot)com)
 */
var ACPrintManager = function() {}

ACPrintManager.isIE = function() {
	return Browser.isIE;
}

ACPrintManager.initIE = function(objId) {
	var obj = document.getElementById(objId);
	if (obj == null) return;
	if (obj.onBeforePrint == undefined || obj.onAfterPrint == undefined) return;
	
	window.attachEvent("onbeforeprint",function(e) {
		
		obj.setAttribute("tmpW",obj.width);
		obj.setAttribute("tmpH",obj.height);
		
		var size = ACPrintManager.getContentSize(obj);
		
		obj.width = size.width;
		obj.height = size.height;
		
		obj.onBeforePrint();
		
		if (obj.getAttribute("tmpW").indexOf("%") != -1 ||
		    obj.getAttribute("tmpH").indexOf("%") != -1) {
			//ie percent width or height hack
			obj.focus();
		}
	});
	window.attachEvent("onafterprint",function() {
		obj.onAfterPrint();
		obj.width = obj.getAttribute("tmpW");
		obj.height = obj.getAttribute("tmpH");
	});
} 

ACPrintManager.initFF = function(objId, imgData) {
	var obj = document.getElementById(objId);
	if (obj == null && document.embeds != null) obj = document.embeds[objId];
	if (obj == null) return;
	
	//step #1: get parent node
	var parent = obj.parentNode;
	if (parent == null) return;
	
	//step #2: get header
	var head = document.getElementsByTagName('head');
	head = ((head.length != 1) ? null : head[0]);
	
	//step #3: write normal css rule		
	var style = document.createElement('style');
	style.setAttribute('type','text/css');
	style.setAttribute('media','screen');
	
	var size = ACPrintManager.getContentSize(obj);
	
	var imgDescriptor = 'img#'+objId+'_screen';
	var imgRule = "width: "+size.width+";\n"+
				  "height: "+size.height+";\n"+
				  "padding: 0;\n"+
				  "margin: 0;\n"+
				  "border: 0;\n"+
				  "display: none;";
	style.appendChild(document.createTextNode(imgDescriptor + '{' + imgRule + "}\n"));
	//add style to head
	head.appendChild(style);

	//step #4: write print css rule
	style = document.createElement('style');
	style.setAttribute('type','text/css');
	style.setAttribute('media','print');
	
	//write image style
	imgDescriptor = 'img#'+objId+'_screen';
	imgRule = 'display: block;';
	
	style.appendChild(document.createTextNode(imgDescriptor + '{' + imgRule + '}'));
	
	//write object style
	var objDescriptor = 'embed#'+objId;
	var objRule = 'display: none;';
	style.appendChild(document.createTextNode(objDescriptor + '{' + objRule + '}'));
	
	//add style to head
	head.appendChild(style);

	//step #5: get image
	var needAppend = false;
	var img = document.getElementById('img');
	if (img == null) {
		img = document.createElement('img');
		needAppend = true;
	}
	
	img.src = 'data:image/png;base64,'+imgData;
	img.setAttribute('id',objId+"_screen");
	if (needAppend)
		parent.appendChild(img);
}

ACPrintManager.getContentSize = function(obj) {
	var size = {};
	size.width = obj.width;
	size.height = obj.height;
	if (obj.getWidth != undefined) size.width = obj.getWidth()+'px';
	if (obj.getHeight != undefined) size.height = obj.getHeight()+'px';
	return size;
}