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];
184 * Returns the index for a specified column id.
185 * @param {String} id The column id
186 * @return {Number} the index, or -1 if not found
188 getIndexById : function(id){
189 for(var i = 0, len = this.config.length; i < len; i++){
190 if(this.config[i].id == id){
197 * Returns the index for a specified column dataIndex.
198 * @param {String} dataIndex The column dataIndex
199 * @return {Number} the index, or -1 if not found
202 findColumnIndex : function(dataIndex){
203 for(var i = 0, len = this.config.length; i < len; i++){
204 if(this.config[i].dataIndex == dataIndex){
212 moveColumn : function(oldIndex, newIndex){
213 var c = this.config[oldIndex];
214 this.config.splice(oldIndex, 1);
215 this.config.splice(newIndex, 0, c);
217 this.fireEvent("columnmoved", this, oldIndex, newIndex);
220 isLocked : function(colIndex){
221 return this.config[colIndex].locked === true;
224 setLocked : function(colIndex, value, suppressEvent){
225 if(this.isLocked(colIndex) == value){
228 this.config[colIndex].locked = value;
230 this.fireEvent("columnlockchange", this, colIndex, value);
234 getTotalLockedWidth : function(){
236 for(var i = 0; i < this.config.length; i++){
237 if(this.isLocked(i) && !this.isHidden(i)){
238 this.totalWidth += this.getColumnWidth(i);
244 getLockedCount : function(){
245 for(var i = 0, len = this.config.length; i < len; i++){
246 if(!this.isLocked(i)){
253 * Returns the number of columns.
256 getColumnCount : function(visibleOnly){
257 if(visibleOnly === true){
259 for(var i = 0, len = this.config.length; i < len; i++){
260 if(!this.isHidden(i)){
266 return this.config.length;
270 * Returns the column configs that return true by the passed function that is called with (columnConfig, index)
271 * @param {Function} fn
272 * @param {Object} scope (optional)
273 * @return {Array} result
275 getColumnsBy : function(fn, scope){
277 for(var i = 0, len = this.config.length; i < len; i++){
278 var c = this.config[i];
279 if(fn.call(scope||this, c, i) === true){
287 * Returns true if the specified column is sortable.
288 * @param {Number} col The column index
291 isSortable : function(col){
292 if(typeof this.config[col].sortable == "undefined"){
293 return this.defaultSortable;
295 return this.config[col].sortable;
299 * Returns the rendering (formatting) function defined for the column.
300 * @param {Number} col The column index.
301 * @return {Function} The function used to render the cell. See {@link #setRenderer}.
303 getRenderer : function(col){
304 if(!this.config[col].renderer){
305 return Roo.grid.ColumnModel.defaultRenderer;
307 return this.config[col].renderer;
311 * Sets the rendering (formatting) function for a column.
312 * @param {Number} col The column index
313 * @param {Function} fn The function to use to process the cell's raw data
314 * to return HTML markup for the grid view. The render function is called with
315 * the following parameters:<ul>
316 * <li>Data value.</li>
317 * <li>Cell metadata. An object in which you may set the following attributes:<ul>
318 * <li>css A CSS style string to apply to the table cell.</li>
319 * <li>attr An HTML attribute definition string to apply to the data container element <i>within</i> the table cell.</li></ul>
320 * <li>The {@link Roo.data.Record} from which the data was extracted.</li>
322 * <li>Column index</li>
323 * <li>The {@link Roo.data.Store} object from which the Record was extracted</li></ul>
325 setRenderer : function(col, fn){
326 this.config[col].renderer = fn;
330 * Returns the width for the specified column.
331 * @param {Number} col The column index
334 getColumnWidth : function(col){
335 return this.config[col].width || this.defaultWidth;
339 * Sets the width for a column.
340 * @param {Number} col The column index
341 * @param {Number} width The new width
343 setColumnWidth : function(col, width, suppressEvent){
344 this.config[col].width = width;
345 this.totalWidth = null;
347 this.fireEvent("widthchange", this, col, width);
352 * Returns the total width of all columns.
353 * @param {Boolean} includeHidden True to include hidden column widths
356 getTotalWidth : function(includeHidden){
357 if(!this.totalWidth){
359 for(var i = 0, len = this.config.length; i < len; i++){
360 if(includeHidden || !this.isHidden(i)){
361 this.totalWidth += this.getColumnWidth(i);
365 return this.totalWidth;
369 * Returns the header for the specified column.
370 * @param {Number} col The column index
373 getColumnHeader : function(col){
374 return this.config[col].header;
378 * Sets the header for a column.
379 * @param {Number} col The column index
380 * @param {String} header The new header
382 setColumnHeader : function(col, header){
383 this.config[col].header = header;
384 this.fireEvent("headerchange", this, col, header);
388 * Returns the tooltip for the specified column.
389 * @param {Number} col The column index
392 getColumnTooltip : function(col){
393 return this.config[col].tooltip;
396 * Sets the tooltip for a column.
397 * @param {Number} col The column index
398 * @param {String} tooltip The new tooltip
400 setColumnTooltip : function(col, tooltip){
401 this.config[col].tooltip = tooltip;
405 * Returns the dataIndex for the specified column.
406 * @param {Number} col The column index
409 getDataIndex : function(col){
410 return this.config[col].dataIndex;
414 * Sets the dataIndex for a column.
415 * @param {Number} col The column index
416 * @param {Number} dataIndex The new dataIndex
418 setDataIndex : function(col, dataIndex){
419 this.config[col].dataIndex = dataIndex;
425 * Returns true if the cell is editable.
426 * @param {Number} colIndex The column index
427 * @param {Number} rowIndex The row index
430 isCellEditable : function(colIndex, rowIndex){
431 return (this.config[colIndex].editable || (typeof this.config[colIndex].editable == "undefined" && this.config[colIndex].editor)) ? true : false;
435 * Returns the editor defined for the cell/column.
436 * return false or null to disable editing.
437 * @param {Number} colIndex The column index
438 * @param {Number} rowIndex The row index
441 getCellEditor : function(colIndex, rowIndex){
442 return this.config[colIndex].editor;
446 * Sets if a column is editable.
447 * @param {Number} col The column index
448 * @param {Boolean} editable True if the column is editable
450 setEditable : function(col, editable){
451 this.config[col].editable = editable;
456 * Returns true if the column is hidden.
457 * @param {Number} colIndex The column index
460 isHidden : function(colIndex){
461 return this.config[colIndex].hidden;
466 * Returns true if the column width cannot be changed
468 isFixed : function(colIndex){
469 return this.config[colIndex].fixed;
473 * Returns true if the column can be resized
476 isResizable : function(colIndex){
477 return colIndex >= 0 && this.config[colIndex].resizable !== false && this.config[colIndex].fixed !== true;
480 * Sets if a column is hidden.
481 * @param {Number} colIndex The column index
482 * @param {Boolean} hidden True if the column is hidden
484 setHidden : function(colIndex, hidden){
485 this.config[colIndex].hidden = hidden;
486 this.totalWidth = null;
487 this.fireEvent("hiddenchange", this, colIndex, hidden);
491 * Sets the editor for a column.
492 * @param {Number} col The column index
493 * @param {Object} editor The editor object
495 setEditor : function(col, editor){
496 this.config[col].editor = editor;
500 Roo.grid.ColumnModel.defaultRenderer = function(value){
501 if(typeof value == "string" && value.length < 1){
507 // Alias for backwards compatibility
508 Roo.grid.DefaultColumnModel = Roo.grid.ColumnModel;