/**
 * 分页表格
 *
 * Created by GUY on 2016/2/15.
 * @class BI.PageTable
 * @extends BI.Widget
 */
BI.PageTable = BI.inherit(BI.Widget, {

    _const: {
        scrollWidth: 18,
        minScrollWidth: 100
    },

    _defaultConfig: function () {
        return BI.extend(BI.PageTable.superclass._defaultConfig.apply(this, arguments), {
            baseCls: "bi-page-table",
            el: {
                type: "bi.sequence_table"
            },
            pager: {
                horizontal: {
                    pages: false, //总页数
                    curr: 1, //初始化当前页， pages为数字时可用

                    hasPrev: BI.emptyFn,
                    hasNext: BI.emptyFn,
                    firstPage: 1,
                    lastPage: BI.emptyFn
                },
                vertical: {
                    pages: false, //总页数
                    curr: 1, //初始化当前页， pages为数字时可用

                    hasPrev: BI.emptyFn,
                    hasNext: BI.emptyFn,
                    firstPage: 1,
                    lastPage: BI.emptyFn
                }
            },

            itemsCreator: BI.emptyFn,

            isNeedFreeze: false,//是否需要冻结单元格
            freezeCols: [], //冻结的列号,从0开始,isNeedFreeze为true时生效

            isNeedMerge: false,//是否需要合并单元格
            mergeCols: [], //合并的单元格列号
            mergeRule: BI.emptyFn,

            columnSize: [],
            minColumnSize: [],
            maxColumnSize: [],
            headerRowSize: 25,
            rowSize: 25,

            regionColumnSize: [],

            headerCellStyleGetter: BI.emptyFn,
            summaryCellStyleGetter: BI.emptyFn,
            sequenceCellStyleGetter: BI.emptyFn,

            header: [],
            items: [], //二维数组

            //交叉表头
            crossHeader: [],
            crossItems: []
        });
    },

    _init: function () {
        BI.PageTable.superclass._init.apply(this, arguments);
        var self = this, o = this.options;
        this.hCurr = 1;
        this.vCurr = 1;

        this.table = BI.createWidget(o.el, {
            type: "bi.sequence_table",
            width: o.width,
            height: o.height && o.height - 30,

            isNeedResize: true,
            isResizeAdapt: false,

            isNeedFreeze: o.isNeedFreeze,
            freezeCols: o.freezeCols,

            isNeedMerge: o.isNeedMerge,
            mergeCols: o.mergeCols,
            mergeRule: o.mergeRule,

            columnSize: o.columnSize,
            minColumnSize: o.minColumnSize,
            maxColumnSize: o.maxColumnSize,
            headerRowSize: o.headerRowSize,
            rowSize: o.rowSize,

            regionColumnSize: o.regionColumnSize,

            headerCellStyleGetter: o.headerCellStyleGetter,
            summaryCellStyleGetter: o.summaryCellStyleGetter,
            sequenceCellStyleGetter: o.sequenceCellStyleGetter,

            header: o.header,
            items: o.items,
            //交叉表头
            crossHeader: o.crossHeader,
            crossItems: o.crossItems
        });

        this.table.on(BI.Table.EVENT_TABLE_SCROLL, function () {
            self.fireEvent(BI.Table.EVENT_TABLE_SCROLL, arguments);
        });
        this.table.on(BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE, function () {
            o.regionColumnSize = this.getRegionColumnSize();
            o.columnSize = this.getColumnSize();
            self.fireEvent(BI.Table.EVENT_TABLE_AFTER_REGION_RESIZE, arguments);
        });
        this.table.on(BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE, function () {
            o.regionColumnSize = this.getRegionColumnSize();
            o.columnSize = this.getColumnSize();
            self.fireEvent(BI.Table.EVENT_TABLE_AFTER_COLUMN_RESIZE, arguments);
        });

        this.pager = BI.createWidget(o.pager, {
            type: "bi.direction_pager",
            height: 30
        });
        this.pager.on(BI.Pager.EVENT_CHANGE, function () {
            var vpage = this.getVPage && this.getVPage();
            if (BI.isNull(vpage)) {
                vpage = this.getCurrentPage();
            }
            var hpage = this.getHPage && this.getHPage();
            o.itemsCreator({
                vpage: vpage,
                hpage: hpage
            }, function (items, header, crossItems, crossHeader) {
                self.table.setVPage ? self.table.setVPage(vpage) : self.table.setValue(vpage);
                self.table.setHPage && self.table.setHPage(hpage);
                self.populate.apply(self, arguments);
            });
        });

        BI.createWidget({
            type: "bi.absolute",
            element: this,
            items: [{
                el: this.table,
                left: 0,
                top: 0
            }, {
                el: this.pager,
                left: 0,
                right: 0,
                bottom: 0
            }]
        })
    },

    setHPage: function (v) {
        this.hCurr = v;
        this.pager.setHPage && this.pager.setHPage(v);
        this.table.setHPage && this.table.setHPage(v);
    },

    setVPage: function (v) {
        this.vCurr = v;
        this.pager.setVPage && this.pager.setVPage(v);
        this.table.setVPage && this.table.setVPage(v);
    },

    getHPage: function () {
        var hpage = this.pager.getHPage && this.pager.getHPage();
        if (BI.isNotNull(hpage)) {
            return hpage;
        }
        hpage = this.pager.getCurrentPage && this.pager.getCurrentPage();
        if (BI.isNotNull(hpage)) {
            return hpage;
        }
        return this.hpage;
    },

    getVPage: function () {
        var vpage = this.pager.getVPage && this.pager.getVPage();
        if (BI.isNotNull(vpage)) {
            return vpage;
        }
        vpage = this.pager.getCurrentPage && this.pager.getCurrentPage();
        if (BI.isNotNull(vpage)) {
            return vpage;
        }
        return this.vpage;
    },

    setWidth: function (width) {
        BI.PageTable.superclass.setWidth.apply(this, arguments);
        this.table.setWidth(width);
    },

    setHeight: function (height) {
        BI.PageTable.superclass.setHeight.apply(this, arguments);
        var showPager = false;
        if (this.pager.alwaysShowPager) {
            showPager = true;
        } else if (this.pager.hasHNext && this.pager.hasHNext()) {
            showPager = true;
        } else if (this.pager.hasHPrev && this.pager.hasHPrev()) {
            showPager = true;
        } else if (this.pager.hasVNext && this.pager.hasVNext()) {
            showPager = true;
        } else if (this.pager.hasVPrev && this.pager.hasVPrev()) {
            showPager = true;
        } else if (this.pager.hasNext && this.pager.hasNext()) {
            showPager = true;
        } else if (this.pager.hasPrev && this.pager.hasPrev()) {
            showPager = true;
        }
        this.table.setHeight(height - (showPager ? 30 : 0));
    },

    setColumnSize: function (columnSize) {
        this.options.columnSize = columnSize;
        this.table.setColumnSize(columnSize);
    },

    getColumnSize: function () {
        return this.table.getColumnSize();
    },

    setRegionColumnSize: function (columnSize) {
        this.options.columnSize = columnSize;
        this.table.setRegionColumnSize(columnSize);
    },

    getRegionColumnSize: function () {
        return this.table.getRegionColumnSize();
    },

    getVerticalScroll: function () {
        return this.table.getVerticalScroll();
    },

    setLeftHorizontalScroll: function (scrollLeft) {
        this.table.setLeftHorizontalScroll(scrollLeft);
    },

    setRightHorizontalScroll: function (scrollLeft) {
        this.table.setRightHorizontalScroll(scrollLeft);
    },

    setVerticalScroll: function (scrollTop) {
        this.table.setVerticalScroll(scrollTop);
    },

    restore: function () {
        this.table.restore();
    },

    attr: function () {
        BI.PageTable.superclass.attr.apply(this, arguments);
        this.table.attr.apply(this.table, arguments);
    },

    populate: function () {
        this.pager.populate();
        this.table.populate.apply(this.table, arguments);
    },

    destroy: function () {
        this.table.destroy();
        this.pager && this.pager.destroy();
        BI.PageTable.superclass.destroy.apply(this, arguments);
    }
});
BI.shortcut('bi.page_table', BI.PageTable);