cvi_bevel_lib.js

用javascript实现图片右下角翻页效果。很强大。

						canvas.options = options;
						canvas.id = image.id;
						canvas.alt = image.alt;
						canvas.name = image.name;
						canvas.title = image.title;
						canvas.source = image.src;
						canvas.className = image.className;
						canvas.style.cssText = image.style.cssText;
						canvas.style.height = imageHeight+'px';
						canvas.style.width = imageWidth+'px';
						canvas.height = imageHeight;
						canvas.width = imageWidth;
						object.replaceChild(canvas,image);
						cvi_bevel.modify(canvas, options);
					}
				}
			} catch (e) {
			}
		}
	},
	
	modify: function(canvas, options) {
		try {
			var radius = (typeof options['radius']=='number'?options['radius']:canvas.options['radius']); canvas.options['radius']=radius;
			var glow = (typeof options['glow']=='number'?options['glow']:canvas.options['glow']); canvas.options['glow']=glow;
			var shine = (typeof options['shine']=='number'?options['shine']:canvas.options['shine']); canvas.options['shine']=shine;
			var shade = (typeof options['shade']=='number'?options['shade']:canvas.options['shade']); canvas.options['shade']=shade;
			var glowcolor = (typeof options['glowcolor']=='string'?options['glowcolor']:canvas.options['glowcolor']); canvas.options['glowcolor']=glowcolor;
			var shinecolor = (typeof options['shinecolor']=='string'?options['shinecolor']:canvas.options['shinecolor']); canvas.options['shinecolor']=shinecolor;
			var shadecolor = (typeof options['shadecolor']=='string'?options['shadecolor']:canvas.options['shadecolor']); canvas.options['shadecolor']=shadecolor;
			var backcolor = (typeof options['backcolor']=='string'?options['backcolor']:canvas.options['backcolor']); canvas.options['backcolor']=backcolor;
			var fillcolor = (typeof options['fillcolor']=='string'?options['fillcolor']:canvas.options['fillcolor']); canvas.options['fillcolor']=fillcolor;
			var linear = (typeof options['linear']=='boolean'?options['linear']:canvas.options['linear']); canvas.options['linear']=linear;
			var noglow = (typeof options['noglow']=='boolean'?options['noglow']:canvas.options['noglow']); canvas.options['noglow']=noglow;
			var noshine = (typeof options['noshine']=='boolean'?options['noshine']:canvas.options['noshine']); canvas.options['noshine']=noshine;
			var noshade = (typeof options['noshade']=='boolean'?options['noshade']:canvas.options['noshade']); canvas.options['noshade']=noshade;
			var usemask = (typeof options['usemask']=='boolean'?options['usemask']:canvas.options['usemask']); canvas.options['usemask']=usemask;
			var ww = canvas.width, hh = canvas.height, ix = Math.round(Math.min(ww,hh)*0.05), iy = ix, iw = ww-(2*ix), ih = hh-(2*iy);
			if(document.all && document.namespaces && !window.opera) {
				if(canvas.tagName.toUpperCase() == "VAR") {
					var glo = Math.min(glow==0?40:glow*1.2,100), sio = shine==0?0.5:shine/100, sao = shade==0?0.5:shade/100, rdi = Math.max(Math.min(radius==0?20:radius,40),20);
					var glc = glowcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?glowcolor:'#000000';
					var sic = shinecolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?shinecolor:'#ffffff';
					var sac = shadecolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?shadecolor:'#000000';
					var bac = backcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?backcolor:'#0080ff';
					var flc = fillcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?fillcolor:backcolor;
					var mask = usemask?"filter:progid:DXImageTransform.Microsoft.Alpha(opacity=100,finishopacity=50,style=3);":"";
					var head, fill, foot='</v:group>', high='', ishine='', left='', right='', ishade='', iglow='', oline='';
					var f, p, r, t, ro, ri, outer, inner;
					if(!noglow) {
						outer = Math.max(Math.min(radius,40),20);
						ro = Math.round(Math.min(iw,ih)*(outer/100));	
						ri = Math.round(ro*0.8); r = ri/2;
						inner = getRadius(ri/2,iw-ri,ih-ri); 
						outer = outer*0.8; ro = Math.round(ro*0.8);
					}else {
						outer = Math.max(Math.min(radius,40),20);
						ix = 0; iy = 0; iw = ww; ih = hh;
						ri = Math.round(Math.min(iw,ih)*(outer/100));
						r = ri/2; inner = getRadius(ri/2,iw-ri,ih-ri);
						ro = ri;
					} t = Math.round(Math.max(Math.round(iw/200),1)); f = 0;
					if(!noglow) {iglow = '<v:roundrect arcsize="'+outer+'%" strokeweight="0" filled="t" stroked="f" fillcolor="'+glc+'" style="filter:Alpha(opacity='+glo+'), progid:dxImageTransform.Microsoft.Blur(PixelRadius='+(ix/2)+',MakeShadow=false); zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:0px;left:0px;width:'+(iw+ix)+'px;height:'+(ih+iy)+'px;"><v:fill color="'+glc+'" opacity="1" /></v:roundrect>';}
					fill = '<v:roundrect arcsize="'+outer+'%" strokeweight="0" filled="t" stroked="f" fillcolor="#ffffff" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+iy+'px;left:'+ix+'px;width:'+iw+'px;height:'+ih+'px;"><v:fill method="linear" type="gradient" angle="0" color="'+flc+'" color2="'+bac+'" /></v:roundrect>';
					fill += '<v:roundrect arcsize="'+outer+'%" strokeweight="0" filled="t" stroked="f" style="'+mask+'zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+iy+'px;left:'+ix+'px;width:'+iw+'px;height:'+ih+'px;"><v:fill src="'+canvas.source+'" type="frame" /></v:roundrect>';
					if(!noshade) {
						ishade = '<v:shape strokeweight="0" filled="t" stroked="f" fillcolor="#000000" coordorigin="0,0" coordsize="'+ro+','+ro+'" path="m '+ro+','+ro+' l 0,'+ro+' qy '+ro+',0 l '+ro+','+ro+' x e" style="position:absolute;margin: -1px 0 0 -1px;top:'+iy+'px;left:'+ix+'px;width:'+ro+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradientradial" focus="1" focusposition="1,1" focussize="0.5,0.5" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:shape>'; 
						ishade += '<v:shape strokeweight="0" filled="t" stroked="f" fillcolor="#000000" coordorigin="0,0" coordsize="'+ro+','+ro+'" path="m 0,'+ro+' l '+ro+','+ro+' qy 0,0 l 0,'+ro+' x e" style="position:absolute;margin: -1px 0 0 -1px;top:'+iy+'px;left:'+(ix+iw-ro)+'px;width:'+ro+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradientradial" focus="1" focusposition="-0.5,1" focussize="0.5,0.5" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:shape>'; 
						ishade += '<v:shape strokeweight="0" filled="t" stroked="f" fillcolor="#000000" coordorigin="0,0" coordsize="'+ro+','+ro+'" path="m '+ro+',0 l '+ro+','+ro+' qx 0,0 l '+ro+',0 x e" style="position:absolute;margin: -1px 0 0 -1px;top:'+(iy+ih-ro)+'px;left:'+ix+'px;width:'+ro+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradientradial" focus="1" focusposition="1,-0.5" focussize="0.5,0.5" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:shape>'; 
						ishade += '<v:shape strokeweight="0" filled="t" stroked="f" fillcolor="#000000" coordorigin="0,0" coordsize="'+ro+','+ro+'" path="m 0,0 l '+ro+',0 qy 0,'+ro+' l 0,0 x e" style="position:absolute;margin: -1px 0 0 -1px;top:'+(iy+ih-ro)+'px;left:'+(ix+iw-ro)+'px;width:'+ro+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradientradial" focus="1" focusposition="-0.5,-0.5" focussize="0.5,0.5" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:shape>'; 
						ishade += '<v:rect strokeweight="0" filled="t" stroked="f" fillcolor="#000000" style="position:absolute;margin: -1px 0 0 -1px;top:'+iy+'px;left:'+(ix+ro-f)+'px;width:'+(iw-ro-ro+f+f)+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradient" angle="0" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:rect>';	
						ishade += '<v:rect strokeweight="0" filled="t" stroked="f" fillcolor="#000000" style="position:absolute;margin: -1px 0 0 -1px;top:'+(iy+ro-f)+'px;left:'+ix+'px;width:'+ro+'px;height:'+(ih-ro-ro+f+f)+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradient" angle="90" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:rect>';	
						ishade += '<v:rect strokeweight="0" filled="t" stroked="f" fillcolor="#000000" style="position:absolute;margin: -1px 0 0 -1px;top:'+(iy+ro-f)+'px;left:'+(ix+iw-ro)+'px;width:'+ro+'px;height:'+(ih-ro-ro+f+f)+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradient" angle="270" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:rect>';	
						ishade += '<v:rect strokeweight="0" filled="t" stroked="f" fillcolor="#000000" style="position:absolute;margin: -1px 0 0 -1px;top:'+(iy+ih-ro)+'px;left:'+(ix+ro-f)+'px;width:'+(iw-ro-ro+f+f)+'px;height:'+ro+'px;"><v:fill method="'+(linear?"sigma":"linear")+'" type="gradient" angle="180" color="#'+sac+'" opacity="0" color2="#'+sac+'" o:opacity2="'+sao+'" /></v:rect>';	
						oline = '<v:roundrect arcsize="'+outer+'%" filled="f" stroked="t" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+iy+'px;left:'+ix+'px;width:'+iw+'px;height:'+ih+'px;"><v:stroke weight="1" style="single" color="#'+sac+'" opacity="'+sao+'" /></v:roundrect>';
					}
					if(!noshine) {
						ishine = '<v:roundrect arcsize="'+inner+'" strokeweight="0" filled="t" stroked="f" fillcolor="#ffffff" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+(iy+(ri/2))+'px;left:'+(ix+(ri/2))+'px;width:'+(iw-ri)+'px;height:'+(ih-ri)+'px;"><v:fill method="linear sigma" type="gradient" angle="0" color="#'+sic+'" opacity="0" color2="#'+sic+'" o:opacity2="'+sio+'" /></v:roundrect>';
						r=Math.round(r); p = "m 0,"+r+" l 0,"+(ih-ri-r)+","+t+","+(ih-ri-r)+","+t+","+r+" qy "+r+","+t+" l "+(iw-ri-r)+","+t+" qx "+(iw-ri-t)+","+r+" l "+(iw-ri-t)+","+(ih-ri-r)+","+(iw-ri)+","+(ih-ri-r)+","+(iw-ri)+","+r+" qy "+(iw-ri-r)+",0 l "+r+",0 qx 0,"+r+" x e";
						high = '<v:shape strokeweight="0" stroked="f" filled="t" coordorigin="0,0" coordsize="'+(iw-ri)+','+(ih-ri)+'" path="'+p+'" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+(iy+(ri/2))+'px;left:'+(ix+(ri/2))+'px;width:'+(iw-ri)+'px;height:'+(ih-ri)+'px;"><v:fill method="linear sigma" type="gradient" angle="0" color="#'+sic+'" opacity="0" color2="#'+sic+'" o:opacity2="'+sio+'" /></v:shape>';
						left = '<v:oval stroked="f" strokeweight="0" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+(iy+(ri/8))+'px;left:'+(ix+(ri/8))+'px;width:'+ri+'px;height:'+ri+'px;"><v:fill method="any" type="gradientradial" focus="0" focussize="0,0" focusposition="0.5,0.5" on="t" color="#'+sic+'" opacity="0" color2="#'+sic+'" o:opacity2="'+sio+'" /></v:oval>';
						right = '<v:oval stroked="f" strokeweight="0" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:'+(iy+(ri/8))+'px;left:'+(ix+iw-(ri*1.125))+'px;width:'+ri+'px;height:'+ri+'px;"><v:fill method="any" type="gradientradial" focus="0" focussize="0,0" focusposition="0.5,0.5" on="t" color="#'+sic+'" opacity="0" color2="#'+sic+'" o:opacity2="'+sio+'" /></v:oval>';
					}
					head = '<v:group style="zoom:1;display:'+canvas.dpl+';margin:-1px 0 0 -1px;padding:0;position:relative;width:'+ww+'px;height:'+hh+'px;" coordsize="'+ww+','+hh+'"><v:rect strokeweight="0" filled="t" stroked="f" fillcolor="#ffffff" style="zoom:1;margin:-1px 0 0 -1px;padding:0;position:absolute;top:0px;left:0px;width:'+ww+'px;height:'+hh+'px;"><v:fill color="#ffffff" opacity="0.0" /></v:rect>';
					canvas.innerHTML = head+iglow+fill+ishade+ishine+high+left+right+oline+foot;
				}
			}else {
				if(canvas.tagName.toUpperCase() == "CANVAS" && canvas.getContext("2d")) {
					var glo = glow==0?0.33:glow/100, sio = shine==0?0.5:shine/100, sao = shade==0?0.5:shade/100, rdi = Math.max(Math.min(radius==0?0.2:radius/100,0.4),0.2);	
					var glc = getRGB(glowcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?glowcolor:'#000000');
					var sic = getRGB(shinecolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?shinecolor:'#ffffff');
					var sac = getRGB(shadecolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?shadecolor:'#000000');
					var bac = getRGB(backcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?backcolor:'#0080ff');
					var flc = getRGB(fillcolor.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)?fillcolor:backcolor);
					var style='', r = Math.max(Math.min(rdi,0.4),0.2), otr = Math.round(Math.min(iw,ih)*r), mdr = Math.round(otr*0.8), inr = Math.round(mdr/2);
					if(noglow) {ix = 0; iy = 0; iw = ww; ih = hh; mdr = Math.round(Math.min(iw,ih)*r); inr = Math.round(mdr/2);} 
					var context = canvas.getContext("2d");
					var img = new Image();
					img.onload = function() {
						context.clearRect(0,0,ww,hh);
						context.globalCompositeOperation = "source-over";
						context.save();
						if(!noglow) applyGlow(context,0,0,ww,hh,otr,glo,glc);
						applyForm(context,ix,iy,iw,ih,mdr,true,r);
						context.clip();
						style = context.createLinearGradient(ix,iy,ix,iy+ih);
						style.addColorStop(0,'rgba('+bac+',1)');
						style.addColorStop(1,'rgba('+flc+',1)');
						context.fillStyle = style; context.fill();
						context.fillStyle = 'rgba(0,0,0,0)';
						context.fillRect(0,0,ww,hh);
						context.drawImage(img,0,0,ww,hh);
						if(usemask) {
							context.globalCompositeOperation = "destination-out";
							applyMask(context,ix,iy,iw,ih,mdr,1,'0,0,0');
							context.globalCompositeOperation = "destination-over";
							context.fillStyle = style;
							context.beginPath(); context.rect(ix,iy,iw,ih);
							context.closePath(); context.fill();
						}
						if(!noshade) {
							context.globalCompositeOperation = window.opera?"source-over":"source-atop";
							context.fillStyle = 'rgba(0,0,0,0)'; context.fillRect(ix,iy,iw,ih);
							applyMask(context,ix,iy,iw,ih,mdr,sao,sac,false,linear);
							applyForm(context,ix,iy,iw,ih,mdr,true,r);
							context.strokeStyle = 'rgba('+sac+','+sao+')';
							context.lineWidth = 1; context.stroke();
						}
						if(!noshine) {
							context.globalCompositeOperation = window.opera?"source-over":"source-atop";
							applyForm(context,ix+inr,iy+inr,iw-mdr,ih-mdr,inr);
							if(!window.opera) {context.globalCompositeOperation = "lighter"; sio = sio*0.5; }
							style = context.createLinearGradient(0,inr,0,ih-mdr);
							style.addColorStop(0,'rgba('+sic+','+sio+')');
							style.addColorStop(0.25,'rgba('+sic+','+(sio/2)+')');
							style.addColorStop(1,'rgba('+sic+',0)');
							context.fillStyle = style; context.fill();
							applyForm(context,ix+inr,iy+inr,iw-mdr,ih-mdr,inr);
							style = context.createLinearGradient(0,inr,0,ih-mdr);
							style.addColorStop(0,'rgba('+sic+','+(sio*1.25)+')');
							style.addColorStop(0.25,'rgba('+sic+','+(sio/1.5)+')');
							style.addColorStop(1,'rgba('+sic+',0)');
							context.lineWidth = Math.max(Math.round(iw/200),0.5);
							context.strokeStyle = style; context.stroke();				
							applyFlex(context,ix+inr,iy+inr,iw-mdr,ih-mdr,inr,sio,sic);
						}
						context.restore();
					}
					img.src = canvas.source;
				}
			}
		} catch (e) {
		}
	},
	
	replace : function(canvas) {
		var object = canvas.parentNode; 
		var img = document.createElement('img');
		img.id = canvas.id;
		img.alt = canvas.alt;
		img.title = canvas.title;
		img.src = canvas.source;
		img.className = canvas.className;
		img.style.cssText = canvas.style.cssText;
		img.style.height = canvas.height+'px';
		img.style.width = canvas.width+'px';
		object.replaceChild(img,canvas);
	},

	remove : function(canvas) {
		if(document.all && document.namespaces && !window.opera) {
			if(canvas.tagName.toUpperCase() == "VAR") {
				cvi_bevel.replace(canvas);
			}
		}else {
			if(canvas.tagName.toUpperCase() == "CANVAS") {
				cvi_bevel.replace(canvas);
			}
		}
	}
}