/lenasys/0.1

/* 

Widget Code!

*/

// Recursive Pos of div in document - should work in most browsers

function findPos(obj) {

	var curLeft = curTop = 0;

	if(obj.offsetParent) {

		curLeft = obj.offsetLeft

		curTop = obj.offsetTop

		while(obj = obj.offsetParent) {

			curLeft += obj.offsetLeft

			curTop += obj.offsetTop

		}

	}

	return {

		x:curLeft,

		y:curTop

	}

}

/*

ui read widget functions

*/

function readSlider(sliderId) {

	var value = parseFloat(document.getElementById(sliderId + "box").value);

	if(isNaN(value)) {

		value = 0.0;

	}

	return value;

}

function readBinary(binaryId) {

	lf = document.getElementById(binaryId + "marker").style.left;

	if(lf == "2px") {

		return 0;

	} else {

		return 1;

	}

}

/*

ui change widget functions

*/

// The idea is to have a few functions like this one and minimum javascript intervention		

function updateBinary(event, binaryId) {

	if(mb) {

		coords = findPos(event.currentTarget);

		coords.x = event.clientX - coords.x;

		coords.y = event.clientY - coords.y;

		if(coords.x > 24) {

			document.getElementById(binaryId + "marker").style.left = 20 + "px";										

			document.getElementById(binaryId).style.backgroundColor = "#ddd";										

		}else if(coords.x < 16) {

			document.getElementById(binaryId + "marker").style.left = 2 + "px";																		

			document.getElementById(binaryId).style.backgroundColor = "#777";										

		}

	}

}

// The idea is to have a few functions like this one and minimum javascript intervention		

function updateSlider(event, kind, min, max, length, sliderId, boxId) {

	if(mb) {

		coords = findPos(event.currentTarget);

		coords.x = event.clientX - coords.x;

		coords.y = event.clientY - coords.y;

		cx = coords.x / length;

		sd = max - min;

		value = min + (sd * cx);	

		if(value > max) value = max;

		if(kind == 0) {

			value = Math.round(value);

		}

		if(kind == 1) {

			value = Math.round(value * 10.0) / 10.0;

		}

		if(kind == 2) {

			value = Math.round(value * 100.0) / 100.0;

		}

		if(kind == 3) {

			value = Math.round(value * 1000.0) / 1000.0;

		}

		document.getElementById(boxId).value = value;				

		document.getElementById(sliderId).style.left = Math.ceil((length) * ((value - min) / sd)) + "px";

	}

}

function sliderPosition(value, min, max, length) {

		if(value < min) {

			value = min;

		}

		if(value > max) {

			value = max;

		}

		pos = Math.round(((value - min) / (max - min)) * length);

		return pos;

}

function changeSlider(value, sliderId, kind, min, max, length) {

		value = parseFloat(value);		

		if(isNaN(value)) {

			value = 0.0;

		}

		if(value < min) {

			value = min;

		}

		if(value > max) {

			value = max;

		}

		if(kind == 0) {

			value = Math.round(value);

		}

		if(kind == 1) {

			value = Math.round(value * 10.0) / 10.0;

		}

		if(kind == 2) {

			value = Math.round(value * 100.0) / 100.0;

		}

		if(kind == 3) {

			value = Math.round(value * 1000.0) / 1000.0;

		}

		pos = sliderPosition(value, min, max, length);

		document.getElementById(sliderId + "box").value = value;

		document.getElementById(sliderId + "marker").style.left = pos + "px";										

}

/*

ui make widget functions

*/

function makeLabel(name) {

	s = "";

	s += "<div class='label'>" + name + "</div>";

	return s;		

}

function makePanel(width, height) {

	s = "";		

	s += "<div class='panel' style='height: " + height + "px; width: " + width + "px;'>";

	return s;

}

function makePanelEnd() {

	s = "</div>";

	return s;		

}

function makeSlider(sliderId, kind, minValue, maxValue, midValue, sliderWidth, defaultValue) {

	s = "";

	defaultPosition = sliderPosition(defaultValue, minValue, maxValue, sliderWidth);

	if(defaultValue < minValue) {

		defaultValue = minValue;

	}

	if(defaultValue > maxValue) {

		defaultValue = maxValue;

	}					

	s += "<input id='" + sliderId + "box' value='" + defaultValue + "' type='text' class='sliderBox' onBlur='changeSlider(this.value,\"" + sliderId + "\"," + kind + "," + minValue + "," + maxValue + "," + sliderWidth + ");'>";

	s += "<div id='" + sliderId + "' class='sliderLine' style='width:" + sliderWidth + "px;'";

	s += " onmousemove='updateSlider(event," + kind + "," + minValue + "," + maxValue + "," + sliderWidth + ",\"" + sliderId + "marker\",\"" + sliderId + "box\");'";

	s += " onmouseup='updateSlider(event," + kind + "," + minValue + "," + maxValue + "," + sliderWidth + ",\"" + sliderId + "marker\",\"" + sliderId + "box\");'>";

	s += " <div id='" + sliderId + "marker' class='sliderMarker' style='left:" + defaultPosition + "px;'></div>";

	s += "</div>";

	s += "<div class='slidermidValue' style='width:" + sliderWidth + "px;'>" + midValue;

	s += "<div class='sliderminValue'>" + minValue + "</div>";

	s += "<div class='slidermaxValue'>" + maxValue + "</div></div>";

	return s;

}

function makeBinary(binaryId, defaultValue) {

	s = "";

	if(defaultValue == 1) {

		defaultPosition = 20;

		defaultColor = "#ddd";

	} else {

		defaultPosition = 2;

		defaultColor = "#777";

	}

	s += "<div id='" + binaryId + "' class='binaryLine' style='background-color:" + defaultColor + ";' onmousemove='updateBinary(event,\"" + binaryId + "\");' onmouseup='updateBinary(event,\"" + binaryId + "\");'>";

	s += "<div id='" + binaryId + "marker' class='binaryMarker' style='left:" + defaultPosition + "px;'></div>";

	s += "</div>";

	return s;

}

var mb = 0;

function mbPress(event) {

	mb = 1;

}

function mbRelease(event) {

	mb = 0;

}