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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2006 STZ-IDA, Germany, http://www.stz-ida.de
License:
LGPL: http://www.gnu.org/licenses/lgpl.html
EPL: http://www.eclipse.org/org/documents/epl-v10.php
See the LICENSE file in the project's top-level directory for details.
Authors:
* Til Schneider (til132)
************************************************************************ */
/* ************************************************************************
#module(ui_table)
// These are needed because of their instantiation at bottom. I don't think this
// is a good idea. (wpbasti)
#require(qx.ui.table.DefaultHeaderCellRenderer)
#require(qx.ui.table.DefaultDataCellRenderer)
#require(qx.ui.table.TextFieldCellEditorFactory)
************************************************************************ */
/**
* A model that contains all meta data about columns, such as width, renderers,
* visibility and order.
*
* @event widthChanged {qx.event.type.DataEvent} Fired when the width of a
* column has changed. The data property of the event is a map having the
* following attributes:
* <ul>
* <li>col: The model index of the column the width of which has changed.</li>
* <li>newWidth: The new width of the column in pixels.</li>
* <li>oldWidth: The old width of the column in pixels.</li>
* </ul>
* @event visibilityChangedPre {qx.event.type.DataEvent} Fired when the
* visibility of a column has changed. This event is equal to
* "visibilityChanged", but is fired right before.
* @event visibilityChanged {qx.event.type.DataEvent} Fired when the
* visibility of a column has changed. The data property of the
* event is a map having the following attributes:
* <ul>
* <li>col: The model index of the column the visibility of which has changed.</li>
* <li>visible: Whether the column is now visible.</li>
* </ul>
* @event orderChanged {qx.event.type.DataEvent} Fired when the column order
* has changed. The data property of the
* event is a map having the following attributes:
* <ul>
* <li>col: The model index of the column that was moved.</li>
* <li>fromOverXPos: The old overall x position of the column.</li>
* <li>toOverXPos: The new overall x position of the column.</li>
* </ul>
*
* @see com.ptvag.webcomponent.ui.table.TableModel
*/
qx.OO.defineClass("qx.ui.table.TableColumnModel", qx.core.Target,
function() {
qx.core.Target.call(this);
});
/**
* Initializes the column model.
*
* @param colCount {Integer} the number of columns the model should have.
*/
qx.Proto.init = function(colCount) {
this._columnDataArr = [];
var width = qx.ui.table.TableColumnModel.DEFAULT_WIDTH;
var headerRenderer = qx.ui.table.TableColumnModel.DEFAULT_HEADER_RENDERER;
var dataRenderer = qx.ui.table.TableColumnModel.DEFAULT_DATA_RENDERER;
var editorFactory = qx.ui.table.TableColumnModel.DEFAULT_EDITOR_FACTORY;
this._overallColumnArr = [];
this._visibleColumnArr = [];
for (var col = 0; col < colCount; col++) {
this._columnDataArr[col] = { width:width, headerRenderer:headerRenderer,
dataRenderer:dataRenderer, editorFactory:editorFactory }
this._overallColumnArr[col] = col;
this._visibleColumnArr[col] = col;
}
this._colToXPosMap = null;
}
/**
* Sets the width of a column.
*
* @param col {Integer} the model index of the column.
* @param width {Integer} the new width the column should get in pixels.
*/
qx.Proto.setColumnWidth = function(col, width) {
var oldWidth = this._columnDataArr[col].width;
if (oldWidth != width) {
this._columnDataArr[col].width = width;
if (this.hasEventListeners("widthChanged")) {
var data = { col:col, newWidth:width, oldWidth:oldWidth }
this.dispatchEvent(new qx.event.type.DataEvent("widthChanged", data), true);
}
}
}
/**
* Returns the width of a column.
*
* @param col {Integer} the model index of the column.
* @return {Integer} the width of the column in pixels.
*/
qx.Proto.getColumnWidth = function(col) {
return this._columnDataArr[col].width;
}
/**
* Sets the header renderer of a column.
*
* @param col {Integer} the model index of the column.
* @param renderer {HeaderCellRenderer} the new header renderer the column
* should get.
*/
qx.Proto.setHeaderCellRenderer = function(col, renderer) {
this._columnDataArr[col].headerRenderer = renderer;
}
/**
* Returns the header renderer of a column.
*
* @param col {Integer} the model index of the column.
* @return {HeaderCellRenderer} the header renderer of the column.
*/
qx.Proto.getHeaderCellRenderer = function(col) {
return this._columnDataArr[col].headerRenderer;
}
/**
* Sets the data renderer of a column.
*
* @param col {Integer} the model index of the column.
* @param renderer {DataCellRenderer} the new data renderer the column should get.
*/
qx.Proto.setDataCellRenderer = function(col, renderer) {
this._columnDataArr[col].dataRenderer = renderer;
}
/**
* Returns the data renderer of a column.
*
* @param col {Integer} the model index of the column.
* @return {DataCellRenderer} the data renderer of the column.
*/
qx.Proto.getDataCellRenderer = function(col) {
return this._columnDataArr[col].dataRenderer;
}
/**
* Sets the cell editor factory of a column.
*
* @param col {Integer} the model index of the column.
* @param factory {CellEditorFactory} the new cell editor factory the column should get.
*/
qx.Proto.setCellEditorFactory = function(col, factory) {
this._columnDataArr[col].editorFactory = factory;
}
/**
* Returns the cell editor factory of a column.
*
* @param col {Integer} the model index of the column.
* @return {CellEditorFactory} the cell editor factory of the column.
*/
qx.Proto.getCellEditorFactory = function(col) {
return this._columnDataArr[col].editorFactory;
}
/**
* Returns the map that translates model indexes to x positions.
* <p>
* The returned map contains for a model index (int) a map having two
* properties: overX (the overall x position of the column, int) and
* visX (the visible x position of the column, int). visX is missing for
* hidden columns.
*
* @return the "column to x postion" map.
*/
qx.Proto._getColToXPosMap = function() {
if (this._colToXPosMap == null) {
this._colToXPosMap = {};
for (var overX = 0; overX < this._overallColumnArr.length; overX++) {
var col = this._overallColumnArr[overX];
this._colToXPosMap[col] = { overX:overX }
}
for (var visX = 0; visX < this._visibleColumnArr.length; visX++) {
var col = this._visibleColumnArr[visX];
this._colToXPosMap[col].visX = visX;
}
}
return this._colToXPosMap;
}
/**
* Returns the number of visible columns.
*
* @return {Integer} the number of visible columns.
*/
qx.Proto.getVisibleColumnCount = function() {
return this._visibleColumnArr.length;
}
/**
* Returns the model index of a column at a certain visible x position.
*
* @param visXPos {Integer} the visible x position of the column.
* @return {Integer} the model index of the column.
*/
qx.Proto.getVisibleColumnAtX = function(visXPos) {
return this._visibleColumnArr[visXPos];
}
/**
* Returns the visible x position of a column.
*
* @param col {Integer} the model index of the column.
* @return {Integer} the visible x position of the column.
*/
qx.Proto.getVisibleX = function(col) {
return this._getColToXPosMap()[col].visX;
}
/**
* Returns the overall number of columns (including hidden columns).
*
* @return {Integer} the overall number of columns.
*/
qx.Proto.getOverallColumnCount = function() {
return this._overallColumnArr.length;
}
/**
* Returns the model index of a column at a certain overall x position.
*
* @param overXPos {Integer} the overall x position of the column.
* @return {Integer} the model index of the column.
*/
qx.Proto.getOverallColumnAtX = function(overXPos) {
return this._overallColumnArr[overXPos];
}
/**
* Returns the overall x position of a column.
*
* @param col {Integer} the model index of the column.
* @return {Integer} the overall x position of the column.
*/
qx.Proto.getOverallX = function(col) {
return this._getColToXPosMap()[col].overX;
}
/**
* Returns whether a certain column is visible.
*
* @param col {Integer} the model index of the column.
* @return {Boolean} whether the column is visible.
*/
qx.Proto.isColumnVisible = function(col) {
return (this._getColToXPosMap()[col].visX != null);
}
/**
* Sets whether a certain column is visible.
*
* @param col {Integer} the model index of the column.
* @param visible {Boolean} whether the column should be visible.
*/
qx.Proto.setColumnVisible = function(col, visible) {
if (visible != this.isColumnVisible(col)) {
if (visible) {
var colToXPosMap = this._getColToXPosMap();
var overX = colToXPosMap[col].overX;
if (overX == null) {
throw new Error("Showing column failed: " + col
+ ". The column is not added to this TablePaneModel.");
}
// get the visX of the next visible column after the column to show
var nextVisX;
for (var x = overX + 1; x < this._overallColumnArr.length; x++) {
var currCol = this._overallColumnArr[x];
var currVisX = colToXPosMap[currCol].visX;
if (currVisX != null) {
nextVisX = currVisX;
break;
}
}
// If there comes no visible column any more, then show the column
// at the end
if (nextVisX == null) {
nextVisX = this._visibleColumnArr.length;
}
// Add the column to the visible columns
this._visibleColumnArr.splice(nextVisX, 0, col);
} else {
var visX = this.getVisibleX(col);
this._visibleColumnArr.splice(visX, 1);
}
// Invalidate the _colToXPosMap
this._colToXPosMap = null;
// Inform the listeners
if (! this._internalChange) {
if (this.hasEventListeners("visibilityChangedPre")) {
var data = { col:col, visible:visible }
this.dispatchEvent(new qx.event.type.DataEvent("visibilityChangedPre", data), true);
}
if (this.hasEventListeners("visibilityChanged")) {
var data = { col:col, visible:visible }
this.dispatchEvent(new qx.event.type.DataEvent("visibilityChanged", data), true);
}
}
//this.debug("setColumnVisible col:"+col+",visible:"+visible+",this._overallColumnArr:"+this._overallColumnArr+",this._visibleColumnArr:"+this._visibleColumnArr);
}
}
/**
* Moves a column.
*
* @param fromOverXPos {Integer} the overall x postion of the column to move.
* @param toOverXPos {Integer} the overall x postion of where the column should be
* moved to.
*/
qx.Proto.moveColumn = function(fromOverXPos, toOverXPos) {
this._internalChange = true;
var col = this._overallColumnArr[fromOverXPos];
var visible = this.isColumnVisible(col);
if (visible) {
this.setColumnVisible(col, false);
}
this._overallColumnArr.splice(fromOverXPos, 1);
this._overallColumnArr.splice(toOverXPos, 0, col);
// Invalidate the _colToXPosMap
this._colToXPosMap = null;
if (visible) {
this.setColumnVisible(col, true);
}
this._internalChange = false;
// Inform the listeners
if (this.hasEventListeners("orderChanged")) {
var data = { col:col, fromOverXPos:fromOverXPos, toOverXPos:toOverXPos }
this.dispatchEvent(new qx.event.type.DataEvent("orderChanged", data), true);
}
}
/** {int} the default width of a column in pixels. */
qx.Class.DEFAULT_WIDTH = 100;
/** {DefaultDataCellRenderer} the default header cell renderer. */
qx.Class.DEFAULT_HEADER_RENDERER = new qx.ui.table.DefaultHeaderCellRenderer;
/** {DefaultDataCellRenderer} the default data cell renderer. */
qx.Class.DEFAULT_DATA_RENDERER = new qx.ui.table.DefaultDataCellRenderer;
/** {TextFieldCellEditorFactory} the default editor factory. */
qx.Class.DEFAULT_EDITOR_FACTORY = new qx.ui.table.TextFieldCellEditorFactory;
|