/**
 * A class which represents a graphical array of DataCells, numbered and ordered.
 */
/* ## class DataArray implements IDataSet */

/**
 * DataArray constructor
 */
function DataArray(length, width, height, startValue) {
	var ID_CELL_WIDTH = parseInt(CELL_HEIGHT) - 2 + "px";
	var divName = "dataArray" + getNewGUID();
	this.frameDiv = document.createElement('DIV');
	this.frameDiv.id = divName;
	
	this.frameDiv.style.width = width + "px";
	this.frameDiv.style.height = height + "px"; 
	/**/
	this.frameDiv.style.borderRightWidth = "1px"; 
	this.frameDiv.style.borderRightStyle = "Solid";
	this.frameDiv.style.borderRightColor = "#000000";
	/**/
	this.frameDiv.style.backgroundColor = "#FFFFFF"; //CELL_COLOR;
	this.frameDiv.style.overflow = "auto";
	
	this.frameDiv.array = this;
	this.cells = [];
	this.length = length;
	this.enabled = true;
	this.dataSetType = "DataArray";
	
	var t0 = document.createElement("TABLE");
	t0.cellSpacing = "0";
	t0.cellPadding = "0";
	t0.width = "100%";
	this.frameDiv.appendChild(t0);
	rowID = 0;
	
	var that = this;
	
	for (var i = startValue; i < startValue + this.length; i++) {
		var cell = new DataCell(false, true, i, 2, (i == startValue));
		this.cells.push(cell);
		cell.onenterpressed = function(id) {
			if (that.cells[id-startValue+1]) that.cells[id-startValue+1].itemDiv.onmousedown();
		}
		var row = t0.insertRow(rowID++);
		
		var idCell = document.createElement("DIV");
		idCell.style.width = ID_CELL_WIDTH;
		idCell.style.height = CELL_HEIGHT;
		idCell.style.lineHeight = CELL_HEIGHT;
		//idCell.style.fontWeight = "bolder";
		idCell.style.textAlign = "center";
		idCell.style.fontSize = "14px";
		/*
		idCell.style.borderBottomWidth = "1px";
		idCell.style.borderBottomStyle = "Solid";
		idCell.style.borderBottomColor = "#000000";
		idCell.style.borderRightWidth = "1px";
		idCell.style.borderRightStyle = "Solid";
		idCell.style.borderRightColor = "#000000";
		*/
		idCell.style.backgroundColor = "#FFFFFF";
		idCell.innerHTML = i < 10 ? "0" + i : i;
		var c0 = row.insertCell(0);
		c0.style.width = ID_CELL_WIDTH;
		c0.appendChild(idCell);
		row.insertCell(1).appendChild(cell.itemDiv);
		cell.itemDiv.style.backgroundColor = CELL_COLOR;
		cell.parent = this;
	}
	
	var cursor = 0;
	var that = this;
	
	/**
	 * Sets the given DataCell to the given index in the array
	 */
	this.setCellAt = function(dataCell, index) {
		index -= startValue;
		that.getCellAt(index).setValue(dataCell.getValue());
	}
	
	/**
	 * Returns the DataCell at the specified index
	 */
	this.getCellAt = function(index) {
		index -= startValue;
		if (index >= 0 && index < that.length)
			return that.cells[index];
	}
	
	/**
	 * Returns the current DataCell at cursor's position
	 */
	this.getCurrent = function() {
		return that.getCellAt(cursor);
	}
	
	/**
	 * Increments the cursor to the next cell
	 */
	this.goNext = function() {
		if (cursor < length-1) cursor++;
	}
	
	/**
	 * Decrements the cursor to the previous cell
	 */
	this.goBack = function() {
		if (cursor > 0) cursor--;
	}

	/**
	 * Clears a given cell in the list
	 */
	this.clearCell = function(dataCell) {
		dataCell.setValue(0, true);
	}
	
	/**
	 * Returns an array representation of this DataList
	 */
	this.toArray = function() {
		var result = [];
		for (var i = 0; i < that.cells.length; i++)
			result[i] = getCellAt(i).getValue();
		return result;
	}
	
	this.showValues = function() {
		for (var i in that.cells) {
			that.cells[i].showValue();
		}
	}
	
	/*
	//Show "0" as default value for all cells
	for (var i = startValue; i < this.length + startValue; i++) {
		this.getCellAt(i).setValue(0);
	}
	*/
}