X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/src/widgets/layout/AnchorLayout.js

diff --git a/src/widgets/layout/AnchorLayout.js b/src/widgets/layout/AnchorLayout.js
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-/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-/**
- * @class Ext.layout.AnchorLayout
- * @extends Ext.layout.ContainerLayout
- * <p>This is a layout that enables anchoring of contained elements relative to the container's dimensions.
- * If the container is resized, all anchored items are automatically rerendered according to their
- * <b><tt>{@link #anchor}</tt></b> rules.</p>
- * <p>This class is intended to be extended or created via the layout:'anchor' {@link Ext.Container#layout}
- * config, and should generally not need to be created directly via the new keyword.</p>
- * <p>AnchorLayout does not have any direct config options (other than inherited ones). By default,
- * AnchorLayout will calculate anchor measurements based on the size of the container itself. However, the
- * container using the AnchorLayout can supply an anchoring-specific config property of <b>anchorSize</b>.
- * If anchorSize is specifed, the layout will use it as a virtual container for the purposes of calculating
- * anchor measurements based on it instead, allowing the container to be sized independently of the anchoring
- * logic if necessary.  For example:</p>
- * <pre><code>
-var viewport = new Ext.Viewport({
-    layout:'anchor',
-    anchorSize: {width:800, height:600},
-    items:[{
-        title:'Item 1',
-        html:'Content 1',
-        width:800,
-        anchor:'right 20%'
-    },{
-        title:'Item 2',
-        html:'Content 2',
-        width:300,
-        anchor:'50% 30%'
-    },{
-        title:'Item 3',
-        html:'Content 3',
-        width:600,
-        anchor:'-100 50%'
-    }]
-});
- * </code></pre>
- */
-Ext.layout.AnchorLayout = Ext.extend(Ext.layout.ContainerLayout, {
-    /**
-     * @cfg {String} anchor
-     * <p>This configuation option is to be applied to <b>child <tt>items</tt></b> of a container managed by
-     * this layout (ie. configured with <tt>layout:'anchor'</tt>).</p><br/>
-     *
-     * <p>This value is what tells the layout how an item should be anchored to the container. <tt>items</tt>
-     * added to an AnchorLayout accept an anchoring-specific config property of <b>anchor</b> which is a string
-     * containing two values: the horizontal anchor value and the vertical anchor value (for example, '100% 50%').
-     * The following types of anchor values are supported:<div class="mdetail-params"><ul>
-     *
-     * <li><b>Percentage</b> : Any value between 1 and 100, expressed as a percentage.<div class="sub-desc">
-     * The first anchor is the percentage width that the item should take up within the container, and the
-     * second is the percentage height.  For example:<pre><code>
-// two values specified
-anchor: '100% 50%' // render item complete width of the container and
-                   // 1/2 height of the container
-// one value specified
-anchor: '100%'     // the width value; the height will default to auto
-     * </code></pre></div></li>
-     *
-     * <li><b>Offsets</b> : Any positive or negative integer value.<div class="sub-desc">
-     * This is a raw adjustment where the first anchor is the offset from the right edge of the container,
-     * and the second is the offset from the bottom edge. For example:<pre><code>
-// two values specified
-anchor: '-50 -100' // render item the complete width of the container
-                   // minus 50 pixels and
-                   // the complete height minus 100 pixels.
-// one value specified
-anchor: '-50'      // anchor value is assumed to be the right offset value
-                   // bottom offset will default to 0
-     * </code></pre></div></li>
-     *
-     * <li><b>Sides</b> : Valid values are <tt>'right'</tt> (or <tt>'r'</tt>) and <tt>'bottom'</tt>
-     * (or <tt>'b'</tt>).<div class="sub-desc">
-     * Either the container must have a fixed size or an anchorSize config value defined at render time in
-     * order for these to have any effect.</div></li>
-     *
-     * <li><b>Mixed</b> : <div class="sub-desc">
-     * Anchor values can also be mixed as needed.  For example, to render the width offset from the container
-     * right edge by 50 pixels and 75% of the container's height use:
-     * <pre><code>
-anchor: '-50 75%'
-     * </code></pre></div></li>
-     *
-     *
-     * </ul></div>
-     */
-
-    // private
-    monitorResize : true,
-
-    type : 'anchor',
-
-    /**
-     * @cfg {String} defaultAnchor
-     *
-     * default anchor for all child container items applied if no anchor or specific width is set on the child item.  Defaults to '100%'.
-     *
-     */
-    defaultAnchor : '100%',
-
-    parseAnchorRE : /^(r|right|b|bottom)$/i,
-
-
-    getLayoutTargetSize : function() {
-        var target = this.container.getLayoutTarget(), ret = {};
-        if (target) {
-            ret = target.getViewSize();
-
-            // IE in strict mode will return a width of 0 on the 1st pass of getViewSize.
-            // Use getStyleSize to verify the 0 width, the adjustment pass will then work properly
-            // with getViewSize
-            if (Ext.isIE && Ext.isStrict && ret.width == 0){
-                ret =  target.getStyleSize();
-            }
-            ret.width -= target.getPadding('lr');
-            ret.height -= target.getPadding('tb');
-        }
-        return ret;
-    },
-
-    // private
-    onLayout : function(container, target) {
-        Ext.layout.AnchorLayout.superclass.onLayout.call(this, container, target);
-
-        var size = this.getLayoutTargetSize(),
-            containerWidth = size.width,
-            containerHeight = size.height,
-            overflow = target.getStyle('overflow'),
-            components = this.getRenderedItems(container),
-            len = components.length,
-            boxes = [],
-            box,
-            anchorWidth,
-            anchorHeight,
-            component,
-            anchorSpec,
-            calcWidth,
-            calcHeight,
-            anchorsArray,
-            totalHeight = 0,
-            i,
-            el;
-
-        if(containerWidth < 20 && containerHeight < 20){
-            return;
-        }
-
-        // find the container anchoring size
-        if(container.anchorSize) {
-            if(typeof container.anchorSize == 'number') {
-                anchorWidth = container.anchorSize;
-            } else {
-                anchorWidth = container.anchorSize.width;
-                anchorHeight = container.anchorSize.height;
-            }
-        } else {
-            anchorWidth = container.initialConfig.width;
-            anchorHeight = container.initialConfig.height;
-        }
-
-        for(i = 0; i < len; i++) {
-            component = components[i];
-            el = component.getPositionEl();
-
-            // If a child container item has no anchor and no specific width, set the child to the default anchor size
-            if (!component.anchor && component.items && !Ext.isNumber(component.width) && !(Ext.isIE6 && Ext.isStrict)){
-                component.anchor = this.defaultAnchor;
-            }
-
-            if(component.anchor) {
-                anchorSpec = component.anchorSpec;
-                // cache all anchor values
-                if(!anchorSpec){
-                    anchorsArray = component.anchor.split(' ');
-                    component.anchorSpec = anchorSpec = {
-                        right: this.parseAnchor(anchorsArray[0], component.initialConfig.width, anchorWidth),
-                        bottom: this.parseAnchor(anchorsArray[1], component.initialConfig.height, anchorHeight)
-                    };
-                }
-                calcWidth = anchorSpec.right ? this.adjustWidthAnchor(anchorSpec.right(containerWidth) - el.getMargins('lr'), component) : undefined;
-                calcHeight = anchorSpec.bottom ? this.adjustHeightAnchor(anchorSpec.bottom(containerHeight) - el.getMargins('tb'), component) : undefined;
-
-                if(calcWidth || calcHeight) {
-                    boxes.push({
-                        component: component,
-                        width: calcWidth || undefined,
-                        height: calcHeight || undefined
-                    });
-                }
-            }
-        }
-        for (i = 0, len = boxes.length; i < len; i++) {
-            box = boxes[i];
-            box.component.setSize(box.width, box.height);
-        }
-
-        if (overflow && overflow != 'hidden' && !this.adjustmentPass) {
-            var newTargetSize = this.getLayoutTargetSize();
-            if (newTargetSize.width != size.width || newTargetSize.height != size.height){
-                this.adjustmentPass = true;
-                this.onLayout(container, target);
-            }
-        }
-
-        delete this.adjustmentPass;
-    },
-
-    // private
-    parseAnchor : function(a, start, cstart) {
-        if (a && a != 'none') {
-            var last;
-            // standard anchor
-            if (this.parseAnchorRE.test(a)) {
-                var diff = cstart - start;
-                return function(v){
-                    if(v !== last){
-                        last = v;
-                        return v - diff;
-                    }
-                };
-            // percentage
-            } else if(a.indexOf('%') != -1) {
-                var ratio = parseFloat(a.replace('%', ''))*.01;
-                return function(v){
-                    if(v !== last){
-                        last = v;
-                        return Math.floor(v*ratio);
-                    }
-                };
-            // simple offset adjustment
-            } else {
-                a = parseInt(a, 10);
-                if (!isNaN(a)) {
-                    return function(v) {
-                        if (v !== last) {
-                            last = v;
-                            return v + a;
-                        }
-                    };
-                }
-            }
-        }
-        return false;
-    },
-
-    // private
-    adjustWidthAnchor : function(value, comp){
-        return value;
-    },
-
-    // private
-    adjustHeightAnchor : function(value, comp){
-        return value;
-    }
-
-    /**
-     * @property activeItem
-     * @hide
-     */
-});
-Ext.Container.LAYOUTS['anchor'] = Ext.layout.AnchorLayout;