/* Drag and Drop functie */
var Drag = {
	obj : null,
	init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper){
		o.onmousedown	= Drag.start;
		o.hmode			= bSwapHorzRef ? false : true ;
		o.vmode			= bSwapVertRef ? false : true ;
		o.root = oRoot && oRoot != null ? oRoot : o ;
		if (o.hmode  && isNaN(parseInt(o.root.style.left  ))) o.root.style.left   = "0px";
		if (o.vmode  && isNaN(parseInt(o.root.style.top   ))) o.root.style.top    = "0px";
		if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right  = "0px";
		if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";
		o.minX	= typeof minX != 'undefined' ? minX : null;
		o.minY	= typeof minY != 'undefined' ? minY : null;
		o.maxX	= typeof maxX != 'undefined' ? maxX : null;
		o.maxY	= typeof maxY != 'undefined' ? maxY : null;
		o.xMapper = fXMapper ? fXMapper : null;
		o.yMapper = fYMapper ? fYMapper : null;
		o.root.onDragStart	= new Function();
		o.root.onDragEnd	= new Function();
		o.root.onDrag		= new Function();
	},

	start : function(e) {
		var o = Drag.obj = this;
		e = Drag.fixE(e);
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		o.root.onDragStart(x, y);
		o.lastMouseX	= e.clientX;
		o.lastMouseY	= e.clientY;
		if (o.hmode) {
			if (o.minX != null)	o.minMouseX	= e.clientX - x + o.minX;
			if (o.maxX != null)	o.maxMouseX	= o.minMouseX + o.maxX - o.minX;
		} else {
			if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
			if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
		}
		if (o.vmode) {
			if (o.minY != null)	o.minMouseY	= e.clientY - y + o.minY;
			if (o.maxY != null)	o.maxMouseY	= o.minMouseY + o.maxY - o.minY;
		} else {
			if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
			if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
		}
		document.onmousemove	= Drag.drag;
		document.onmouseup		= Drag.end;
		return false;
	},

	drag : function(e) {
		e = Drag.fixE(e);
		var o = Drag.obj;
		var ey	= e.clientY;
		var ex	= e.clientX;
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		var nx, ny;
		if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
		if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
		if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
		if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);
		nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
		ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));
		if (o.xMapper)		nx = o.xMapper(y)
		else if (o.yMapper)	ny = o.yMapper(x)
		Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
		Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
		Drag.obj.lastMouseX	= ex;
		Drag.obj.lastMouseY	= ey;
		Drag.obj.root.onDrag(nx, ny);
		return false;
	},

	end : function() {
		document.onmousemove = null;
		document.onmouseup   = null;
		Drag.obj.root.onDragEnd(	parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]), 
									parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top" : "bottom"]));
		Drag.obj = null;
	},

	fixE : function(e) {
		if (typeof e == 'undefined') e = window.event;
		if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
		if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
		return e;
	}
};


/* Javascript voor krabbel functie */
lastWho = false;
lastGlitter = false;
lastFont = false;
theFont = "acmeexplosive";
function setBorder (imgFile, who) {
	if (lastWho) {
		lastWho.style.padding = '3px';
		lastWho.style.border = '#f00 0px solid';
	}
	lastWho = who;
	who.style.padding = '2px';
	who.style.border = '#f00 1px solid';
	document.getElementById('divBackground').style.backgroundImage = "url('border/" + imgFile + "')";
	document.getElementById('imgBorderType').value = imgFile;
	refreshAll();
}
function setGlitter (imgFile, who) {
	if (lastGlitter) {
		lastGlitter.style.padding = '3px';
		lastGlitter.style.border = '#f00 0px solid';
	}
	lastGlitter = who;
	who.style.padding = '2px';
	who.style.border = '#f00 1px solid';
	document.getElementById('divGlitter').style.backgroundImage = "url('glitter/" + imgFile + "')";
	document.getElementById('imgGlitterType').value = imgFile;
	refreshAll();
}
function setFont (fontFile, who) {
	if (lastFont) {
		lastFont.style.padding = '3px';
		lastFont.style.border = '#f00 0px solid';
	}
	lastFont = who;
	who.style.padding = '2px';
	who.style.border = '#f00 1px solid';
	theFont = fontFile;
	document.getElementById('imgFont').value = fontFile;
	goText();
}
function setImage(imgFile) {
	document.getElementById('uploadStatus').innerHTML = 'Je afbeelding is met succes geupload!';
	document.getElementById('imgPicture').src = "temp/"+imgFile;
	document.getElementById('imgLoc').value = imgFile;
	refreshAll();
}
function setDefImage(imgFile) {
// document.getElementById('uploadStatus').innerHTML = 'Je afbeelding is met succes geupload!';
	document.getElementById('imgPicture').src = "defimages/"+imgFile;
	document.getElementById('imgLoc').value = "#"+imgFile;
	refreshAll();
}
function goText(txt) {
	txt = document.getElementById('textValue').value;
	size = document.getElementById('textSize').value;
	document.getElementById('divTxt').innerHTML = "<img src='createtext.php?t=" + escape(txt) + "&font=" + theFont + "&size="+size+"&color="+document.getElementById('textColor').value+"'>";
}
function refreshAll () {
	document.getElementById('divGlitter').style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity="+document.getElementById('glitterAlpha').value+")";
	document.getElementById('divGlitter').style.height = document.getElementById('imgPicture').height;
	document.getElementById('divGlitter').style.width = document.getElementById('imgPicture').width;
}

function krabbel_init() {
	Drag.init(document.getElementById("divTxt"));
	document.getElementById("divTxt").onDragEnd = function (x, y) {
		if (x > 340 || x < - 20) {
			document.getElementById("divTxt").style.left = 20;
			x = 20;
		}
		if (y < -20 || y > document.getElementById('imgPicture').height) {
			document.getElementById('divTxt').style.top = 20;
			y = 20;
		}
		document.getElementById('imgFontX').value = x;
		document.getElementById('imgFontY').value = y;
	}
}