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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2006 by STZ-IDA, Germany, http://www.stz-ida.de
License:
LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
Authors:
* Til Schneider (til132)
************************************************************************ */
/* ************************************************************************
#module(ui_table)
************************************************************************ */
/**
* An abstract table model that performs the column handling, so subclasses only
* need to care for row handling.
*/
qx.OO.defineClass("qx.ui.table.AbstractTableModel", qx.ui.table.TableModel,
function() {
qx.ui.table.TableModel.call(this);
this._columnIdArr = [];
this._columnNameArr = [];
this._columnIndexMap = {};
});
// overridden
qx.Proto.getColumnCount = function() {
return this._columnIdArr.length;
}
// overridden
qx.Proto.getColumnIndexById = function(columnId) {
return this._columnIndexMap[columnId];
}
// overridden
qx.Proto.getColumnId = function(columnIndex) {
return this._columnIdArr[columnIndex];
}
// overridden
qx.Proto.getColumnName = function(columnIndex) {
return this._columnNameArr[columnIndex];
}
/**
* Sets the column IDs. These IDs may be used internally to identify a column.
* <p>
* Note: This will clear previously set column names.
* </p>
*
* @param columnIdArr {string[]} the IDs of the columns.
* @see #setColumns
*/
qx.Proto.setColumnIds = function(columnIdArr) {
this._columnIdArr = columnIdArr;
// Create the reverse map
this._columnIndexMap = {};
for (var i = 0; i < columnIdArr.length; i++) {
this._columnIndexMap[columnIdArr[i]] = i;
}
this._columnNameArr = new Array(columnIdArr.length);
// Inform the listeners
if (!this._internalChange) {
this.createDispatchEvent(qx.ui.table.TableModel.EVENT_TYPE_META_DATA_CHANGED);
}
}
/**
* Sets the column names. These names will be shown to the user.
* <p>
* Note: The column IDs have to be defined before.
* </p>
*
* @param columnNameArr {string[]} the names of the columns.
* @see #setColumnIds
*/
qx.Proto.setColumnNamesByIndex = function(columnNameArr) {
if (this._columnIdArr.length != columnNameArr.length) {
throw new Error("this._columnIdArr and columnNameArr have different length: "
+ this._columnIdArr.length + " != " + columnNameArr.length);
}
this._columnNameArr = columnNameArr;
// Inform the listeners
this.createDispatchEvent(qx.ui.table.TableModel.EVENT_TYPE_META_DATA_CHANGED);
}
/**
* Sets the column names. These names will be shown to the user.
* <p>
* Note: The column IDs have to be defined before.
* </p>
*
* @param columnNameMap {Map} a map containing the column IDs as keys and the
* column name as values.
* @see #setColumnIds
*/
qx.Proto.setColumnNamesById = function(columnNameMap) {
this._columnNameArr = new Array(this._columnIdArr.length);
for (var i = 0; i < this._columnIdArr.length; ++i) {
this._columnNameArr[i] = columnNameMap[this._columnIdArr[i]];
}
}
/**
* Sets the columns.
*
* @param columnNameArr {string[]} The column names. These names will be shown to
* the user.
* @param columnIdArr {string[] ? null} The column IDs. These IDs may be used
* internally to identify a column. If null, the column names are used as
* IDs.
*/
qx.Proto.setColumns = function(columnNameArr, columnIdArr) {
if (columnIdArr == null) {
columnIdArr = columnNameArr;
}
if (columnIdArr.length != columnNameArr.length) {
throw new Error("columnIdArr and columnNameArr have different length: "
+ columnIdArr.length + " != " + columnNameArr.length);
}
this._internalChange = true;
this.setColumnIds(columnIdArr);
this._internalChange = false;
this.setColumnNamesByIndex(columnNameArr);
}
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