//Custom Cell Type
        function FivePointedStarCellType() {
            this.fillStyle = "orange";
            this.size = 10;
        }
        FivePointedStarCellType.prototype = new GcSpread.Sheets.CustomCellType();
        FivePointedStarCellType.prototype.paint = function (ctx, value, x, y, w, h, style, context) {
            if (!ctx) {
                return;
            }

            ctx.save();

            // draw inside the cell's boundary
            ctx.rect(x, y, w, h);
            ctx.clip();
            ctx.beginPath();

            if (value) {
                ctx.fillStyle = this.fillStyle;
            } else {
                ctx.fillStyle = "gray";
            }

            var size = this.size;
            var dx = x + w / 2;
            var dy = y + h / 2;
            ctx.beginPath();
            var dig = Math.PI / 5 * 4;
            for (var i = 0; i < 5; i++) {
                ctx.lineTo(dx + Math.sin(i * dig) * size, dy + Math.cos(i * dig) * size);
            }
            ctx.closePath();
            ctx.fill();

            ctx.restore();
        };
        FivePointedStarCellType.prototype.getHitInfo = function (x, y, cellStyle, cellRect, context) {
            var xm = cellRect.x + cellRect.width / 2,
                    ym = cellRect.y + cellRect.height / 2,
                    size = 10;
            var info = { x: x, y: y, row: context.row, col: context.col, cellRect: cellRect, sheetArea: context.sheetArea };
            if (xm - size <= x && x <= xm + size && ym - size <= y && y <= ym + size) {
                info.isReservedLocation = true;
            }
            return info;
        };
        FivePointedStarCellType.prototype.processMouseUp = function (hitInfo) {
            var sheet = hitInfo.sheet;
            if (sheet && hitInfo.isReservedLocation) {
                var row = hitInfo.row, col = hitInfo.col, sheetArea = hitInfo.sheetArea;
                var newValue = !sheet.getValue(row, col, sheetArea);
                var cellEditInfo = { row: row, col: col, newValue: newValue };
                var undoAction = new GcSpread.Sheets.UndoRedo.CellEditUndoAction(sheet, cellEditInfo);
                sheet.doCommand(undoAction);
                return true;
            }
            return false;
        };

        function FullNameCellType() {
        }
        FullNameCellType.prototype = new GcSpread.Sheets.CustomCellType();
        FullNameCellType.prototype.paint = function (ctx, value, x, y, w, h, style, context) {
            if (value) {
                GcSpread.Sheets.CustomCellType.prototype.paint.apply(this, [ctx, value.firstName + "." + value.lastName, x, y, w, h, style, context]);
            }
        };
        FullNameCellType.prototype.updateEditor = function (editorContext, cellStyle, cellRect, context) {
            if (editorContext) {
                $(editorContext).width(cellRect.width);
                $(editorContext).height(100);
            }
        };
        FullNameCellType.prototype.createEditorElement = function (context) {
            var div = document.createElement("div");
            var $div = $(div);
            $div.attr("gcUIElement", "gcEditingInput");
            $div.css("background-color", "white");
            $div.css("position", "absolute");
            $div.css("overflow", "hidden");
            $div.css("border", "2px #5292f7 solid");
            var $span1 = $("<span></span>");
            $span1.css("display", "block");
            var $span2 = $("<span></span>");
            $span2.css("display", "block");
            var $input1 = $("<input type='text'/>");
            var $input2 = $("<input type='text'/>");
            $div.append($span1);
            $div.append($input1);
            $div.append($span2);
            $div.append($input2);
            return div;
        };
        FullNameCellType.prototype.getEditorValue = function (editorContext) {
            if (editorContext && editorContext.children.length === 4) {
                var input1 = editorContext.children[1];
                var firstName = $(input1).val();
                var input2 = editorContext.children[3];
                var lastName = $(input2).val();
                return { firstName: firstName, lastName: lastName };
            }
        };
        FullNameCellType.prototype.setEditorValue = function (editorContext, value) {
            if (editorContext && editorContext.children.length === 4) {
                var span1 = editorContext.children[0];
                $(span1).text("First Name:");
                var span2 = editorContext.children[2];
                $(span2).text("Last Name:");
                if (value) {
                    var input1 = editorContext.children[1];
                    $(input1).val(value.firstName);
                    var input2 = editorContext.children[3];
                    $(input2).val(value.lastName);
                }
            }
        };
        FullNameCellType.prototype.isReservedKey = function (e, context) {
            //cell type handle tab key by itself
            return (e.keyCode === GcSpread.Sheets.Key.tab && !e.ctrlKey && !e.shiftKey && !e.altKey);
        };
        FullNameCellType.prototype.isEditingValueChanged = function (oldValue, newValue,context) {
            if (newValue.firstName != oldValue.firstName || newValue.lastName != oldValue.lastName) {
                return true;
            }
            return false;
        };
        $(function () {
            new GcSpread.Sheets.Spread($("#ss").get(0),{sheetCount:3});
            var spread = $("#ss").data("spread");
            var sheet = spread.getActiveSheet();
            sheet.isPaintSuspended(true);
            sheet.setCellType(0, 0, new FivePointedStarCellType());
            sheet.setValue(0, 0, true);
            sheet.setRowHeight(0, 200);
            sheet.setColumnWidth(0, 200);
            sheet.setCellType(0, 1, new FullNameCellType());
            sheet.setColumnWidth(1, 200);
            sheet.setValue(0, 1, { firstName: "Bob", lastName: "Smith" });
            sheet.isPaintSuspended(false);
        });