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+ <title>The source code</title>\r
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+ <pre class="prettyprint lang-js"><div id="cls-Ext.BoxComponent"></div>/**
+ * @class Ext.BoxComponent
+ * @extends Ext.Component
+ * <p>Base class for any {@link Ext.Component Component} that is to be sized as a box, using width and height.</p>
+ * <p>BoxComponent provides automatic box model adjustments for sizing and positioning and will work correctly
+ * within the Component rendering model.</p>
+ * <p>A BoxComponent may be created as a custom Component which encapsulates any HTML element, either a pre-existing
+ * element, or one that is created to your specifications at render time. Usually, to participate in layouts,
+ * a Component will need to be a <b>Box</b>Component in order to have its width and height managed.</p>
+ * <p>To use a pre-existing element as a BoxComponent, configure it so that you preset the <b>el</b> property to the
+ * element to reference:<pre><code>
+var pageHeader = new Ext.BoxComponent({
+ el: 'my-header-div'
+});</code></pre>
+ * This may then be {@link Ext.Container#add added} to a {@link Ext.Container Container} as a child item.</p>
+ * <p>To create a BoxComponent based around a HTML element to be created at render time, use the
+ * {@link Ext.Component#autoEl autoEl} config option which takes the form of a
+ * {@link Ext.DomHelper DomHelper} specification:<pre><code>
+var myImage = new Ext.BoxComponent({
+ autoEl: {
+ tag: 'img',
+ src: '/images/my-image.jpg'
+ }
+});</code></pre></p>
+ * @constructor
+ * @param {Ext.Element/String/Object} config The configuration options.
+ * @xtype box
+ */
+Ext.BoxComponent = Ext.extend(Ext.Component, {
+
+ // Configs below are used for all Components when rendered by BorderLayout.
+ <div id="cfg-Ext.BoxComponent-region"></div>/**
+ * @cfg {String} region <p><b>Note</b>: this config is only used when this BoxComponent is rendered
+ * by a Container which has been configured to use the <b>{@link Ext.layout.BorderLayout BorderLayout}</b>
+ * layout manager (e.g. specifying <tt>layout:'border'</tt>).</p><br>
+ * <p>See {@link Ext.layout.BorderLayout} also.</p>
+ */
+ // margins config is used when a BoxComponent is rendered by BorderLayout or BoxLayout.
+ <div id="cfg-Ext.BoxComponent-margins"></div>/**
+ * @cfg {Object} margins <p><b>Note</b>: this config is only used when this BoxComponent is rendered
+ * by a Container which has been configured to use the <b>{@link Ext.layout.BorderLayout BorderLayout}</b>
+ * or one of the two <b>{@link Ext.layout.BoxLayout BoxLayout} subclasses.</b></p>
+ * <p>An object containing margins to apply to this BoxComponent in the
+ * format:</p><pre><code>
+{
+ top: (top margin),
+ right: (right margin),
+ bottom: (bottom margin),
+ left: (left margin)
+}</code></pre>
+ * <p>May also be a string containing space-separated, numeric margin values. The order of the
+ * sides associated with each value matches the way CSS processes margin values:</p>
+ * <p><div class="mdetail-params"><ul>
+ * <li>If there is only one value, it applies to all sides.</li>
+ * <li>If there are two values, the top and bottom borders are set to the first value and the
+ * right and left are set to the second.</li>
+ * <li>If there are three values, the top is set to the first value, the left and right are set
+ * to the second, and the bottom is set to the third.</li>
+ * <li>If there are four values, they apply to the top, right, bottom, and left, respectively.</li>
+ * </ul></div></p>
+ * <p>Defaults to:</p><pre><code>
+ * {top:0, right:0, bottom:0, left:0}
+ * </code></pre>
+ */
+ <div id="cfg-Ext.BoxComponent-x"></div>/**
+ * @cfg {Number} x
+ * The local x (left) coordinate for this component if contained within a positioning container.
+ */
+ <div id="cfg-Ext.BoxComponent-y"></div>/**
+ * @cfg {Number} y
+ * The local y (top) coordinate for this component if contained within a positioning container.
+ */
+ <div id="cfg-Ext.BoxComponent-pageX"></div>/**
+ * @cfg {Number} pageX
+ * The page level x coordinate for this component if contained within a positioning container.
+ */
+ <div id="cfg-Ext.BoxComponent-pageY"></div>/**
+ * @cfg {Number} pageY
+ * The page level y coordinate for this component if contained within a positioning container.
+ */
+ <div id="cfg-Ext.BoxComponent-height"></div>/**
+ * @cfg {Number} height
+ * The height of this component in pixels (defaults to auto).
+ * <b>Note</b> to express this dimension as a percentage or offset see {@link Ext.Component#anchor}.
+ */
+ <div id="cfg-Ext.BoxComponent-width"></div>/**
+ * @cfg {Number} width
+ * The width of this component in pixels (defaults to auto).
+ * <b>Note</b> to express this dimension as a percentage or offset see {@link Ext.Component#anchor}.
+ */
+ <div id="cfg-Ext.BoxComponent-autoHeight"></div>/**
+ * @cfg {Boolean} autoHeight
+ * <p>True to use height:'auto', false to use fixed height (or allow it to be managed by its parent
+ * Container's {@link Ext.Container#layout layout manager}. Defaults to false.</p>
+ * <p><b>Note</b>: Although many components inherit this config option, not all will
+ * function as expected with a height of 'auto'. Setting autoHeight:true means that the
+ * browser will manage height based on the element's contents, and that Ext will not manage it at all.</p>
+ * <p>If the <i>browser</i> is managing the height, be aware that resizes performed by the browser in response
+ * to changes within the structure of the Component cannot be detected. Therefore changes to the height might
+ * result in elements needing to be synchronized with the new height. Example:</p><pre><code>
+var w = new Ext.Window({
+ title: 'Window',
+ width: 600,
+ autoHeight: true,
+ items: {
+ title: 'Collapse Me',
+ height: 400,
+ collapsible: true,
+ border: false,
+ listeners: {
+ beforecollapse: function() {
+ w.el.shadow.hide();
+ },
+ beforeexpand: function() {
+ w.el.shadow.hide();
+ },
+ collapse: function() {
+ w.syncShadow();
+ },
+ expand: function() {
+ w.syncShadow();
+ }
+ }
+ }
+}).show();
+</code></pre>
+ */
+ <div id="cfg-Ext.BoxComponent-autoWidth"></div>/**
+ * @cfg {Boolean} autoWidth
+ * <p>True to use width:'auto', false to use fixed width (or allow it to be managed by its parent
+ * Container's {@link Ext.Container#layout layout manager}. Defaults to false.</p>
+ * <p><b>Note</b>: Although many components inherit this config option, not all will
+ * function as expected with a width of 'auto'. Setting autoWidth:true means that the
+ * browser will manage width based on the element's contents, and that Ext will not manage it at all.</p>
+ * <p>If the <i>browser</i> is managing the width, be aware that resizes performed by the browser in response
+ * to changes within the structure of the Component cannot be detected. Therefore changes to the width might
+ * result in elements needing to be synchronized with the new width. For example, where the target element is:</p><pre><code>
+<div id='grid-container' style='margin-left:25%;width:50%'></div>
+</code></pre>
+ * A Panel rendered into that target element must listen for browser window resize in order to relay its
+ * child items when the browser changes its width:<pre><code>
+var myPanel = new Ext.Panel({
+ renderTo: 'grid-container',
+ monitorResize: true, // relay on browser resize
+ title: 'Panel',
+ height: 400,
+ autoWidth: true,
+ layout: 'hbox',
+ layoutConfig: {
+ align: 'stretch'
+ },
+ defaults: {
+ flex: 1
+ },
+ items: [{
+ title: 'Box 1',
+ }, {
+ title: 'Box 2'
+ }, {
+ title: 'Box 3'
+ }],
+});
+</code></pre>
+ */
+
+ /* // private internal config
+ * {Boolean} deferHeight
+ * True to defer height calculations to an external component, false to allow this component to set its own
+ * height (defaults to false).
+ */
+
+ // private
+ initComponent : function(){
+ Ext.BoxComponent.superclass.initComponent.call(this);
+ this.addEvents(
+ <div id="event-Ext.BoxComponent-resize"></div>/**
+ * @event resize
+ * Fires after the component is resized.
+ * @param {Ext.Component} this
+ * @param {Number} adjWidth The box-adjusted width that was set
+ * @param {Number} adjHeight The box-adjusted height that was set
+ * @param {Number} rawWidth The width that was originally specified
+ * @param {Number} rawHeight The height that was originally specified
+ */
+ 'resize',
+ <div id="event-Ext.BoxComponent-move"></div>/**
+ * @event move
+ * Fires after the component is moved.
+ * @param {Ext.Component} this
+ * @param {Number} x The new x position
+ * @param {Number} y The new y position
+ */
+ 'move'
+ );
+ },
+
+ // private, set in afterRender to signify that the component has been rendered
+ boxReady : false,
+ // private, used to defer height settings to subclasses
+ deferHeight: false,
+
+ <div id="method-Ext.BoxComponent-setSize"></div>/**
+ * Sets the width and height of this BoxComponent. This method fires the {@link #resize} event. This method can accept
+ * either width and height as separate arguments, or you can pass a size object like <code>{width:10, height:20}</code>.
+ * @param {Mixed} width The new width to set. This may be one of:<div class="mdetail-params"><ul>
+ * <li>A Number specifying the new width in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
+ * <li>A String used to set the CSS width style.</li>
+ * <li>A size object in the format <code>{width: widthValue, height: heightValue}</code>.</li>
+ * <li><code>undefined</code> to leave the width unchanged.</li>
+ * </ul></div>
+ * @param {Mixed} height The new height to set (not required if a size object is passed as the first arg).
+ * This may be one of:<div class="mdetail-params"><ul>
+ * <li>A Number specifying the new height in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
+ * <li>A String used to set the CSS height style. Animation may <b>not</b> be used.</li>
+ * <li><code>undefined</code> to leave the height unchanged.</li>
+ * </ul></div>
+ * @return {Ext.BoxComponent} this
+ */
+ setSize : function(w, h){
+ // support for standard size objects
+ if(typeof w == 'object'){
+ h = w.height;
+ w = w.width;
+ }
+ // not rendered
+ if(!this.boxReady){
+ this.width = w;
+ this.height = h;
+ return this;
+ }
+
+ // prevent recalcs when not needed
+ if(this.cacheSizes !== false && this.lastSize && this.lastSize.width == w && this.lastSize.height == h){
+ return this;
+ }
+ this.lastSize = {width: w, height: h};
+ var adj = this.adjustSize(w, h);
+ var aw = adj.width, ah = adj.height;
+ if(aw !== undefined || ah !== undefined){ // this code is nasty but performs better with floaters
+ var rz = this.getResizeEl();
+ if(!this.deferHeight && aw !== undefined && ah !== undefined){
+ rz.setSize(aw, ah);
+ }else if(!this.deferHeight && ah !== undefined){
+ rz.setHeight(ah);
+ }else if(aw !== undefined){
+ rz.setWidth(aw);
+ }
+ this.onResize(aw, ah, w, h);
+ this.fireEvent('resize', this, aw, ah, w, h);
+ }
+ return this;
+ },
+
+ <div id="method-Ext.BoxComponent-setWidth"></div>/**
+ * Sets the width of the component. This method fires the {@link #resize} event.
+ * @param {Number} width The new width to setThis may be one of:<div class="mdetail-params"><ul>
+ * <li>A Number specifying the new width in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
+ * <li>A String used to set the CSS width style.</li>
+ * </ul></div>
+ * @return {Ext.BoxComponent} this
+ */
+ setWidth : function(width){
+ return this.setSize(width);
+ },
+
+ <div id="method-Ext.BoxComponent-setHeight"></div>/**
+ * Sets the height of the component. This method fires the {@link #resize} event.
+ * @param {Number} height The new height to set. This may be one of:<div class="mdetail-params"><ul>
+ * <li>A Number specifying the new height in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
+ * <li>A String used to set the CSS height style.</li>
+ * <li><i>undefined</i> to leave the height unchanged.</li>
+ * </ul></div>
+ * @return {Ext.BoxComponent} this
+ */
+ setHeight : function(height){
+ return this.setSize(undefined, height);
+ },
+
+ <div id="method-Ext.BoxComponent-getSize"></div>/**
+ * Gets the current size of the component's underlying element.
+ * @return {Object} An object containing the element's size {width: (element width), height: (element height)}
+ */
+ getSize : function(){
+ return this.getResizeEl().getSize();
+ },
+
+ <div id="method-Ext.BoxComponent-getWidth"></div>/**
+ * Gets the current width of the component's underlying element.
+ * @return {Number}
+ */
+ getWidth : function(){
+ return this.getResizeEl().getWidth();
+ },
+
+ <div id="method-Ext.BoxComponent-getHeight"></div>/**
+ * Gets the current height of the component's underlying element.
+ * @return {Number}
+ */
+ getHeight : function(){
+ return this.getResizeEl().getHeight();
+ },
+
+ <div id="method-Ext.BoxComponent-getOuterSize"></div>/**
+ * Gets the current size of the component's underlying element, including space taken by its margins.
+ * @return {Object} An object containing the element's size {width: (element width + left/right margins), height: (element height + top/bottom margins)}
+ */
+ getOuterSize : function(){
+ var el = this.getResizeEl();
+ return {width: el.getWidth() + el.getMargins('lr'),
+ height: el.getHeight() + el.getMargins('tb')};
+ },
+
+ <div id="method-Ext.BoxComponent-getPosition"></div>/**
+ * Gets the current XY position of the component's underlying element.
+ * @param {Boolean} local (optional) If true the element's left and top are returned instead of page XY (defaults to false)
+ * @return {Array} The XY position of the element (e.g., [100, 200])
+ */
+ getPosition : function(local){
+ var el = this.getPositionEl();
+ if(local === true){
+ return [el.getLeft(true), el.getTop(true)];
+ }
+ return this.xy || el.getXY();
+ },
+
+ <div id="method-Ext.BoxComponent-getBox"></div>/**
+ * Gets the current box measurements of the component's underlying element.
+ * @param {Boolean} local (optional) If true the element's left and top are returned instead of page XY (defaults to false)
+ * @return {Object} box An object in the format {x, y, width, height}
+ */
+ getBox : function(local){
+ var pos = this.getPosition(local);
+ var s = this.getSize();
+ s.x = pos[0];
+ s.y = pos[1];
+ return s;
+ },
+
+ <div id="method-Ext.BoxComponent-updateBox"></div>/**
+ * Sets the current box measurements of the component's underlying element.
+ * @param {Object} box An object in the format {x, y, width, height}
+ * @return {Ext.BoxComponent} this
+ */
+ updateBox : function(box){
+ this.setSize(box.width, box.height);
+ this.setPagePosition(box.x, box.y);
+ return this;
+ },
+
+ <div id="method-Ext.BoxComponent-getResizeEl"></div>/**
+ * <p>Returns the outermost Element of this Component which defines the Components overall size.</p>
+ * <p><i>Usually</i> this will return the same Element as <code>{@link #getEl}</code>,
+ * but in some cases, a Component may have some more wrapping Elements around its main
+ * active Element.</p>
+ * <p>An example is a ComboBox. It is encased in a <i>wrapping</i> Element which
+ * contains both the <code><input></code> Element (which is what would be returned
+ * by its <code>{@link #getEl}</code> method, <i>and</i> the trigger button Element.
+ * This Element is returned as the <code>resizeEl</code>.
+ */
+ getResizeEl : function(){
+ return this.resizeEl || this.el;
+ },
+
+ // protected
+ getPositionEl : function(){
+ return this.positionEl || this.el;
+ },
+
+ <div id="method-Ext.BoxComponent-setPosition"></div>/**
+ * Sets the left and top of the component. To set the page XY position instead, use {@link #setPagePosition}.
+ * This method fires the {@link #move} event.
+ * @param {Number} left The new left
+ * @param {Number} top The new top
+ * @return {Ext.BoxComponent} this
+ */
+ setPosition : function(x, y){
+ if(x && typeof x[1] == 'number'){
+ y = x[1];
+ x = x[0];
+ }
+ this.x = x;
+ this.y = y;
+ if(!this.boxReady){
+ return this;
+ }
+ var adj = this.adjustPosition(x, y);
+ var ax = adj.x, ay = adj.y;
+
+ var el = this.getPositionEl();
+ if(ax !== undefined || ay !== undefined){
+ if(ax !== undefined && ay !== undefined){
+ el.setLeftTop(ax, ay);
+ }else if(ax !== undefined){
+ el.setLeft(ax);
+ }else if(ay !== undefined){
+ el.setTop(ay);
+ }
+ this.onPosition(ax, ay);
+ this.fireEvent('move', this, ax, ay);
+ }
+ return this;
+ },
+
+ <div id="method-Ext.BoxComponent-setPagePosition"></div>/**
+ * Sets the page XY position of the component. To set the left and top instead, use {@link #setPosition}.
+ * This method fires the {@link #move} event.
+ * @param {Number} x The new x position
+ * @param {Number} y The new y position
+ * @return {Ext.BoxComponent} this
+ */
+ setPagePosition : function(x, y){
+ if(x && typeof x[1] == 'number'){
+ y = x[1];
+ x = x[0];
+ }
+ this.pageX = x;
+ this.pageY = y;
+ if(!this.boxReady){
+ return;
+ }
+ if(x === undefined || y === undefined){ // cannot translate undefined points
+ return;
+ }
+ var p = this.getPositionEl().translatePoints(x, y);
+ this.setPosition(p.left, p.top);
+ return this;
+ },
+
+ // private
+ onRender : function(ct, position){
+ Ext.BoxComponent.superclass.onRender.call(this, ct, position);
+ if(this.resizeEl){
+ this.resizeEl = Ext.get(this.resizeEl);
+ }
+ if(this.positionEl){
+ this.positionEl = Ext.get(this.positionEl);
+ }
+ },
+
+ // private
+ afterRender : function(){
+ Ext.BoxComponent.superclass.afterRender.call(this);
+ this.boxReady = true;
+ this.setSize(this.width, this.height);
+ if(this.x || this.y){
+ this.setPosition(this.x, this.y);
+ }else if(this.pageX || this.pageY){
+ this.setPagePosition(this.pageX, this.pageY);
+ }
+ },
+
+ <div id="method-Ext.BoxComponent-syncSize"></div>/**
+ * Force the component's size to recalculate based on the underlying element's current height and width.
+ * @return {Ext.BoxComponent} this
+ */
+ syncSize : function(){
+ delete this.lastSize;
+ this.setSize(this.autoWidth ? undefined : this.getResizeEl().getWidth(), this.autoHeight ? undefined : this.getResizeEl().getHeight());
+ return this;
+ },
+
+ /* // protected
+ * Called after the component is resized, this method is empty by default but can be implemented by any
+ * subclass that needs to perform custom logic after a resize occurs.
+ * @param {Number} adjWidth The box-adjusted width that was set
+ * @param {Number} adjHeight The box-adjusted height that was set
+ * @param {Number} rawWidth The width that was originally specified
+ * @param {Number} rawHeight The height that was originally specified
+ */
+ onResize : function(adjWidth, adjHeight, rawWidth, rawHeight){
+
+ },
+
+ /* // protected
+ * Called after the component is moved, this method is empty by default but can be implemented by any
+ * subclass that needs to perform custom logic after a move occurs.
+ * @param {Number} x The new x position
+ * @param {Number} y The new y position
+ */
+ onPosition : function(x, y){
+
+ },
+
+ // private
+ adjustSize : function(w, h){
+ if(this.autoWidth){
+ w = 'auto';
+ }
+ if(this.autoHeight){
+ h = 'auto';
+ }
+ return {width : w, height: h};
+ },
+
+ // private
+ adjustPosition : function(x, y){
+ return {x : x, y: y};
+ }
+});
+Ext.reg('box', Ext.BoxComponent);
+
+
+<div id="cls-Ext.Spacer"></div>/**
+ * @class Ext.Spacer
+ * @extends Ext.BoxComponent
+ * <p>Used to provide a sizable space in a layout.</p>
+ * @constructor
+ * @param {Object} config
+ */
+Ext.Spacer = Ext.extend(Ext.BoxComponent, {
+ autoEl:'div'
+});
+Ext.reg('spacer', Ext.Spacer);</pre> \r
+</body>\r
+</html>
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