4 * Copyright(c) 2006-2007, Ext JS, LLC.
6 * Originally Released Under LGPL - original licence link has changed is not relivant.
9 * <script type="text/javascript">
14 * @class Roo.grid.ColumnModel
15 * @extends Roo.util.Observable
16 * This is the default implementation of a ColumnModel used by the Grid. It defines
17 * the columns in the grid.
20 var colModel = new Roo.grid.ColumnModel([
21 {header: "Ticker", width: 60, sortable: true, locked: true},
22 {header: "Company Name", width: 150, sortable: true},
23 {header: "Market Cap.", width: 100, sortable: true},
24 {header: "$ Sales", width: 100, sortable: true, renderer: money},
25 {header: "Employees", width: 100, sortable: true, resizable: false}
30 * The config options listed for this class are options which may appear in each
31 * individual column definition.
32 * <br/>RooJS Fix - column id's are not sequential but use Roo.id() - fixes bugs with layouts.
34 * @param {Object} config An Array of column config objects. See this class's
35 * config objects for details.
37 Roo.grid.ColumnModel = function(config){
39 * The config passed into the constructor
44 // if no id, create one
45 // if the column does not have a dataIndex mapping,
46 // map it to the order it is in the config
47 for(var i = 0, len = config.length; i < len; i++){
49 if(typeof c.dataIndex == "undefined"){
52 if(typeof c.renderer == "string"){
53 c.renderer = Roo.util.Format[c.renderer];
55 if(typeof c.id == "undefined"){
58 if(c.editor && c.editor.xtype){
59 c.editor = Roo.factory(c.editor, Roo.grid);
61 if(c.editor && c.editor.isFormField){
62 c.editor = new Roo.grid.GridEditor(c.editor);
64 this.lookup[c.id] = c;
68 * The width of columns which have no width specified (defaults to 100)
71 this.defaultWidth = 100;
74 * Default sortable of columns which have no sortable specified (defaults to false)
77 this.defaultSortable = false;
82 * Fires when the width of a column changes.
83 * @param {ColumnModel} this
84 * @param {Number} columnIndex The column index
85 * @param {Number} newWidth The new width
90 * Fires when the text of a header changes.
91 * @param {ColumnModel} this
92 * @param {Number} columnIndex The column index
93 * @param {Number} newText The new header text
98 * Fires when a column is hidden or "unhidden".
99 * @param {ColumnModel} this
100 * @param {Number} columnIndex The column index
101 * @param {Boolean} hidden true if hidden, false otherwise
103 "hiddenchange": true,
106 * Fires when a column is moved.
107 * @param {ColumnModel} this
108 * @param {Number} oldIndex
109 * @param {Number} newIndex
111 "columnmoved" : true,
113 * @event columlockchange
114 * Fires when a column's locked state is changed
115 * @param {ColumnModel} this
116 * @param {Number} colIndex
117 * @param {Boolean} locked true if locked
119 "columnlockchange" : true
121 Roo.grid.ColumnModel.superclass.constructor.call(this);
123 Roo.extend(Roo.grid.ColumnModel, Roo.util.Observable, {
125 * @cfg {String} header The header text to display in the Grid view.
128 * @cfg {String} dataIndex (Optional) The name of the field in the grid's {@link Roo.data.Store}'s
129 * {@link Roo.data.Record} definition from which to draw the column's value. If not
130 * specified, the column's index is used as an index into the Record's data Array.
133 * @cfg {Number} width (Optional) The initial width in pixels of the column. Using this
134 * instead of {@link Roo.grid.Grid#autoSizeColumns} is more efficient.
137 * @cfg {Boolean} sortable (Optional) True if sorting is to be allowed on this column.
138 * Defaults to the value of the {@link #defaultSortable} property.
139 * Whether local/remote sorting is used is specified in {@link Roo.data.Store#remoteSort}.
142 * @cfg {Boolean} locked (Optional) True to lock the column in place while scrolling the Grid. Defaults to false.
145 * @cfg {Boolean} fixed (Optional) True if the column width cannot be changed. Defaults to false.
148 * @cfg {Boolean} resizable (Optional) False to disable column resizing. Defaults to true.
151 * @cfg {Boolean} hidden (Optional) True to hide the column. Defaults to false.
154 * @cfg {Function} renderer (Optional) A function used to generate HTML markup for a cell
155 * given the cell's data value. See {@link #setRenderer}. If not specified, the
156 * default renderer uses the raw data value.
159 * @cfg {Roo.grid.GridEditor} editor (Optional) For grid editors - returns the grid editor
162 * @cfg {String} align (Optional) Set the CSS text-align property of the column. Defaults to undefined.
166 * Returns the id of the column at the specified index.
167 * @param {Number} index The column index
168 * @return {String} the id
170 getColumnId : function(index){
171 return this.config[index].id;
175 * Returns the column for a specified id.
176 * @param {String} id The column id
177 * @return {Object} the column
179 getColumnById : function(id){
180 return this.lookup[id];
185 * Returns the column for a specified dataIndex.
186 * @param {String} dataIndex The column dataIndex
187 * @return {Object|Boolean} the column or false if not found
189 getColumnByDataIndex: function(dataIndex){
190 var index = this.findColumnIndex(dataIndex);
191 return index > -1 ? this.config[index] : false;
195 * Returns the index for a specified column id.
196 * @param {String} id The column id
197 * @return {Number} the index, or -1 if not found
199 getIndexById : function(id){
200 for(var i = 0, len = this.config.length; i < len; i++){
201 if(this.config[i].id == id){
209 * Returns the index for a specified column dataIndex.
210 * @param {String} dataIndex The column dataIndex
211 * @return {Number} the index, or -1 if not found
214 findColumnIndex : function(dataIndex){
215 for(var i = 0, len = this.config.length; i < len; i++){
216 if(this.config[i].dataIndex == dataIndex){
224 moveColumn : function(oldIndex, newIndex){
225 var c = this.config[oldIndex];
226 this.config.splice(oldIndex, 1);
227 this.config.splice(newIndex, 0, c);
229 this.fireEvent("columnmoved", this, oldIndex, newIndex);
232 isLocked : function(colIndex){
233 return this.config[colIndex].locked === true;
236 setLocked : function(colIndex, value, suppressEvent){
237 if(this.isLocked(colIndex) == value){
240 this.config[colIndex].locked = value;
242 this.fireEvent("columnlockchange", this, colIndex, value);
246 getTotalLockedWidth : function(){
248 for(var i = 0; i < this.config.length; i++){
249 if(this.isLocked(i) && !this.isHidden(i)){
250 this.totalWidth += this.getColumnWidth(i);
256 getLockedCount : function(){
257 for(var i = 0, len = this.config.length; i < len; i++){
258 if(!this.isLocked(i)){
265 * Returns the number of columns.
268 getColumnCount : function(visibleOnly){
269 if(visibleOnly === true){
271 for(var i = 0, len = this.config.length; i < len; i++){
272 if(!this.isHidden(i)){
278 return this.config.length;
282 * Returns the column configs that return true by the passed function that is called with (columnConfig, index)
283 * @param {Function} fn
284 * @param {Object} scope (optional)
285 * @return {Array} result
287 getColumnsBy : function(fn, scope){
289 for(var i = 0, len = this.config.length; i < len; i++){
290 var c = this.config[i];
291 if(fn.call(scope||this, c, i) === true){
299 * Returns true if the specified column is sortable.
300 * @param {Number} col The column index
303 isSortable : function(col){
304 if(typeof this.config[col].sortable == "undefined"){
305 return this.defaultSortable;
307 return this.config[col].sortable;
311 * Returns the rendering (formatting) function defined for the column.
312 * @param {Number} col The column index.
313 * @return {Function} The function used to render the cell. See {@link #setRenderer}.
315 getRenderer : function(col){
316 if(!this.config[col].renderer){
317 return Roo.grid.ColumnModel.defaultRenderer;
319 return this.config[col].renderer;
323 * Sets the rendering (formatting) function for a column.
324 * @param {Number} col The column index
325 * @param {Function} fn The function to use to process the cell's raw data
326 * to return HTML markup for the grid view. The render function is called with
327 * the following parameters:<ul>
328 * <li>Data value.</li>
329 * <li>Cell metadata. An object in which you may set the following attributes:<ul>
330 * <li>css A CSS style string to apply to the table cell.</li>
331 * <li>attr An HTML attribute definition string to apply to the data container element <i>within</i> the table cell.</li></ul>
332 * <li>The {@link Roo.data.Record} from which the data was extracted.</li>
334 * <li>Column index</li>
335 * <li>The {@link Roo.data.Store} object from which the Record was extracted</li></ul>
337 setRenderer : function(col, fn){
338 this.config[col].renderer = fn;
342 * Returns the width for the specified column.
343 * @param {Number} col The column index
346 getColumnWidth : function(col){
347 return this.config[col].width * 1 || this.defaultWidth;
351 * Sets the width for a column.
352 * @param {Number} col The column index
353 * @param {Number} width The new width
355 setColumnWidth : function(col, width, suppressEvent){
356 this.config[col].width = width;
357 this.totalWidth = null;
359 this.fireEvent("widthchange", this, col, width);
364 * Returns the total width of all columns.
365 * @param {Boolean} includeHidden True to include hidden column widths
368 getTotalWidth : function(includeHidden){
369 if(!this.totalWidth){
371 for(var i = 0, len = this.config.length; i < len; i++){
372 if(includeHidden || !this.isHidden(i)){
373 this.totalWidth += this.getColumnWidth(i);
377 return this.totalWidth;
381 * Returns the header for the specified column.
382 * @param {Number} col The column index
385 getColumnHeader : function(col){
386 return this.config[col].header;
390 * Sets the header for a column.
391 * @param {Number} col The column index
392 * @param {String} header The new header
394 setColumnHeader : function(col, header){
395 this.config[col].header = header;
396 this.fireEvent("headerchange", this, col, header);
400 * Returns the tooltip for the specified column.
401 * @param {Number} col The column index
404 getColumnTooltip : function(col){
405 return this.config[col].tooltip;
408 * Sets the tooltip for a column.
409 * @param {Number} col The column index
410 * @param {String} tooltip The new tooltip
412 setColumnTooltip : function(col, tooltip){
413 this.config[col].tooltip = tooltip;
417 * Returns the dataIndex for the specified column.
418 * @param {Number} col The column index
421 getDataIndex : function(col){
422 return this.config[col].dataIndex;
426 * Sets the dataIndex for a column.
427 * @param {Number} col The column index
428 * @param {Number} dataIndex The new dataIndex
430 setDataIndex : function(col, dataIndex){
431 this.config[col].dataIndex = dataIndex;
437 * Returns true if the cell is editable.
438 * @param {Number} colIndex The column index
439 * @param {Number} rowIndex The row index
442 isCellEditable : function(colIndex, rowIndex){
443 return (this.config[colIndex].editable || (typeof this.config[colIndex].editable == "undefined" && this.config[colIndex].editor)) ? true : false;
447 * Returns the editor defined for the cell/column.
448 * return false or null to disable editing.
449 * @param {Number} colIndex The column index
450 * @param {Number} rowIndex The row index
453 getCellEditor : function(colIndex, rowIndex){
454 return this.config[colIndex].editor;
458 * Sets if a column is editable.
459 * @param {Number} col The column index
460 * @param {Boolean} editable True if the column is editable
462 setEditable : function(col, editable){
463 this.config[col].editable = editable;
468 * Returns true if the column is hidden.
469 * @param {Number} colIndex The column index
472 isHidden : function(colIndex){
473 return this.config[colIndex].hidden;
478 * Returns true if the column width cannot be changed
480 isFixed : function(colIndex){
481 return this.config[colIndex].fixed;
485 * Returns true if the column can be resized
488 isResizable : function(colIndex){
489 return colIndex >= 0 && this.config[colIndex].resizable !== false && this.config[colIndex].fixed !== true;
492 * Sets if a column is hidden.
493 * @param {Number} colIndex The column index
494 * @param {Boolean} hidden True if the column is hidden
496 setHidden : function(colIndex, hidden){
497 this.config[colIndex].hidden = hidden;
498 this.totalWidth = null;
499 this.fireEvent("hiddenchange", this, colIndex, hidden);
503 * Sets the editor for a column.
504 * @param {Number} col The column index
505 * @param {Object} editor The editor object
507 setEditor : function(col, editor){
508 this.config[col].editor = editor;
512 Roo.grid.ColumnModel.defaultRenderer = function(value){
513 if(typeof value == "string" && value.length < 1){
519 // Alias for backwards compatibility
520 Roo.grid.DefaultColumnModel = Roo.grid.ColumnModel;