/*
DynAPI Distribution
Fader Animation Extension
The DynAPI Distribution is distributed under the terms of the GNU LGPL license.
requires: DynLayer, Fader
*/
function TextAnimation(x,y,text,animBy,dlyr){
this.EventObject = EventObject;
this.EventObject();
this._chars=[];
this._lyrPool=[];
this._text=text;
this._animBy=null;
this._inUse=0;
this._dlyr=(dlyr||dynapi.document);
this.setLocation(x,y);
this.animateBy(animBy);
this.visible=true;
var me=this; // use delegate "me"
var fn=function(){
me._created=true;
me._split();
}
if(this._dlyr!=dynapi.document) this._dlyr.onCreate(fn);
else {
var e={onload:fn};
this._dlyr.addEventListener(e);
}
};
var p = dynapi.setPrototype('TextAnimation','EventObject');
p._clear = function(){
var l;
var p=this._lyrPool;
var c=this._chars;
for(var i=0;i<c.length;i++){
l=c[i];
l.setVisible(false);
l.removeAllEventListeners();
p[p.length]=l;
}
this._chars.length=0;
};
p._createCharLayer=function(t){
var l;
var p=this._lyrPool;
if (!p.length) l = this._dlyr.addChild(new DynLayer());
else {
l = p[p.length-1];
p.length--;
};
l._ta=this;
l.setHTML(t);
if(l._created) {
// resize char layer
l.setSize(1,1); // why mozilla,gecko,ie??
l.setSize(l.getContentWidth(),l.getContentHeight());
}
l.setVisible(this.visible);
if(dynapi.ua.ie) l.css.filter='alpha(opacity=100)';
else l.css.MozOpacity = 1;
return l;
};
p._exec = function(cmd,i){
window.setTimeout(cmd,(this._ms*i)+5);
};
p._resize=function(align){
var x=this.x;
var y=this.y;
var i,l,c=this._chars;
for(i=0;i<c.length;i++){
l=c[i]; // resize char layer
if(l._created) {
l.setSize(1,1); // why mozilla,gecko,ie??
l.setSize(l.getContentWidth(),l.getContentHeight());
if(align) {
l.setLocation(x,y);
x+=l.w;
}
}
}
};
p._split = function(){
var i,ar,lyr
var t=this._text;
var c=this._chars;
var x=this.x;
var y=this.y;
if(!t||!this._created) return;
this._clear();
if(this._animBy=='all') { // By all
t='<nobr>'+t+'</nobr>';
lyr=c[0]=this._createCharLayer(t);
lyr.setLocation(x,y);
}else { // By word or letter
if (this._animBy=='word') {
t=t.replace(/\s/g,' ')
ar=t.split(' ');
}
else {
ar=t.split('');
}
for(i=0;i<ar.length;i++){
if (ar[i]==' ') ar[i]=' ';
lyr=c[i]=this._createCharLayer(ar[i]);
lyr.setLocation(x,y);
x+=lyr.w;
}
}
if(lyr) lyr.addEventListener(TextAnimation._tiggerEvents);
};
p.animateBy=function(s,delay){ // all, letter, word
this._animBy=s||this._animBy||'letter';
this.setDelay(delay);
this._split();
};
p.getCharLayer = function(i){
if (i>=0 && i<this.chars.length) return this.chars[i];
};
p.setDelay = function(delay){
this._ms=delay||this._ms||50;
};
p.setFont=function(size,family){
};
p.setLocation=function(x,y){
x=x||0; y=y||0;
var byX=x-this.x;
var byY=y-this.y;
var c=this._chars;
this.x=x; this.y=y;
for (var i=0;i<c.length;i++){
l=c[i]; l.setLocation(l.x+byX,l.y+byY);
}
};
p.setText=function(t,animBy,delay){
this._text=t||'';
this.setDelay(delay);
this.animateBy(animBy);
};
p.setVisible = function(b){
var c=this._chars;
this.visible=b;
for (var i=0;i<c.length;i++) c[i].setVisible(b);
};
// Trigger Events
var fn = function(e){
var o=e.getSource();
o._ta._inUse--;
if(!o._ta._inUse) window.setTimeout(o._ta+'.invokeEvent("animfinish")',55);
};
TextAnimation._tiggerEvents = {
onpathfinish:fn,
onfadein:fn,
onfadeout:fn
};
// Effects
// ------------------------
// Apear
p.appear = function(){
var i,ext,c=this._chars;
this._exec(this+'.invokeEvent("animstart")',1);
for (i=0;i<c.length;i++) {
if(!this._inUse) c[i].setVisible(false);
if(i==(c.length-1)) ext=c[i]+'.invokeEvent("pathfinish")';
this._exec(c[i]+'.setVisible(true);;'+ext,i);
}
this._inUse++;
};
// Bounce
p.bounce = function(h,modifier){
var i,l,c;
c=this._chars;
h=(h||100);
modifier=(modifier<-1)? -1:(modifier||0);
this._exec(this+'.invokeEvent("animstart")',1);
// setup bounce chars
for (i=0;i<c.length; i++) {
l=c[i];
l._bonctmr=i<<modifier;
l._boncyv=0;
l._boncmaxv=8;
l._boncy=-l.h;
l.setLocation(null,this.y-h);
if(!this._inUse) l.setVisible(true);
this._exec(this+'._startBounce('+i+','+h+');',i);
}
this._inUse++;
};
p._startBounce = function(i,h){
var l,y,c,ext;
var c=this._chars;
l=c[i];
if (l._bonctmr>0) l._bonctmr--;
else {
yv=l._boncyv;
//y=l._boncy;
l._boncy+=yv;
if (yv<l._boncmaxv) l._boncyv++;
if (l._boncy>h-l.h) {
l._boncy=h-l.h;
l._boncyv=-l._boncyv;
if (l._boncmaxv>0) l._boncmaxv--;
}
l.setLocation(null,(this.y-h)+l._boncy+l.h);
}
if(l._boncmaxv!=0){
this._exec(this+'._startBounce('+i+','+h+');'+ext,1);
}
else if(i==(c.length-1)) {
this._exec(l+'.invokeEvent("pathfinish")',1);
}
};
// Fade In
p.fadeIn = function(inc,ms){
var i,c=this._chars;
this._exec(this+'.invokeEvent("animstart")',1);
for (i=0;i<c.length;i++) this._exec(c[i]+'.fadeIn('+inc+','+ms+');',i);
this._inUse++;
};
// Fade Out
p.fadeOut = function(inc,ms){
var i,c=this._chars;
this._exec(this+'.invokeEvent("animstart")',1);
for (i=0;i<c.length;i++) this._exec(c[i]+'.fadeOut('+inc+','+ms+');',i);
this._inUse++;
};
// Fly From
p.flyFrom = function(x,y,inc,ms){
var i,l,c=this._chars;
this._exec(this+'.invokeEvent("animstart")',1);
for (i=0;i<c.length;i++) {
l=c[i];
this._exec(
((!this._inUse)? l+'.setVisible(true);':'')
+l+'.slideTo('+l.x+','+l.y+','+inc+','+ms+');'
,i);
l.setLocation(x,y);
}
this._inUse++;
};
p.zoomText = function(from,to,inc,ms){
var i,l,c;
c=this._chars;
this._exec(this+'.invokeEvent("animstart")',1);
// setup chars
for (i=0;i<c.length; i++) {
l=c[i];
l._zTo = to||20;
l._zFrom = from||10;
l._zMs=(ms)? ms:50;
l._zInc=(inc)? Math.abs(inc):5;
l.css.fontSize=l._zFrom+'px';
if (l._zFrom>l._zTo) l._zInc*=-1;
if(!this._inUse) l.setVisible(true);
this._exec(this+'._startZoom('+i+');',i);
}
this._inUse++;
};
p._startZoom= function(i){
var l,y,c,ext;
var l=this._chars[i];
var inc = l._zInc;
var from = l._zFrom;
var to = l._zTo;
from+=inc;
if ((inc<0 && from<=to)|| (inc>0 && from>=to)) from=to;
l._zFrom=from;
l.css.fontSize=from+'px';
l.setSize(0,0); // ??
l.setSize(l.getContentWidth(),l.getContentHeight());
if(i==0) l.setLocation(null,this.y-(l.h/2));
else l.setLocation(this._chars[i-1].x+this._chars[i-1].w,this.y-(l.h/2));
if(from!=to) l._zTmr=window.setTimeout(this+'._startZoom('+i+')',l._zMs);
else if(i==(this._chars.length-1)) {
this._exec(l+'.invokeEvent("pathfinish")',1);
}
};
// to-do:
p.wave = function(){};
p.nudge = function(){};
p.quake = function(){};