+/*
+
+This file is part of Ext JS 4
+
+Copyright (c) 2011 Sencha Inc
+
+Contact: http://www.sencha.com/contact
+
+GNU General Public License Usage
+This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+
+If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
+
+*/
/**
- * @class Ext.util.Region
- * @extends Object
+ * This class represents a rectangular region in X,Y space, and performs geometric
+ * transformations or tests upon the region.
*
- * Represents a rectangular region and provides a number of utility methods
- * to compare regions.
+ * This class may be used to compare the document regions occupied by elements.
*/
-
Ext.define('Ext.util.Region', {
/* Begin Definitions */
statics: {
/**
* @static
- * @param {Mixed} el A string, DomElement or Ext.core.Element representing an element
- * on the page.
- * @returns {Ext.util.Region} region
* Retrieves an Ext.util.Region for a particular element.
+ * @param {String/HTMLElement/Ext.Element} el An element ID, htmlElement or Ext.Element representing an element in the document.
+ * @returns {Ext.util.Region} region
*/
getRegion: function(el) {
return Ext.fly(el).getPageBox(true);
/**
* @static
- * @param {Object} o An object with top, right, bottom, left properties
- * @return {Ext.util.Region} region The region constructed based on the passed object
+ * Creates a Region from a "box" Object which contains four numeric properties `top`, `right`, `bottom` and `left`.
+ * @param {Object} o An object with `top`, `right`, `bottom` and `left` properties.
+ * @return {Ext.util.Region} region The Region constructed based on the passed object
*/
from: function(o) {
return new this(o.top, o.right, o.bottom, o.left);
/* End Definitions */
/**
- * @constructor
- * @param {Number} top Top
- * @param {Number} right Right
- * @param {Number} bottom Bottom
- * @param {Number} left Left
+ * Creates a region from the bounding sides.
+ * @param {Number} top Top The topmost pixel of the Region.
+ * @param {Number} right Right The rightmost pixel of the Region.
+ * @param {Number} bottom Bottom The bottom pixel of the Region.
+ * @param {Number} left Left The leftmost pixel of the Region.
*/
constructor : function(t, r, b, l) {
var me = this;
/**
* Checks if this region completely contains the region that is passed in.
* @param {Ext.util.Region} region
+ * @return {Boolean}
*/
contains : function(region) {
var me = this;
/**
* Returns the smallest region that contains the current AND targetRegion.
* @param {Ext.util.Region} region
+ * @return {Ext.util.Region} a new region
*/
union : function(region) {
var me = this,
/**
* Modifies the current region to be constrained to the targetRegion.
* @param {Ext.util.Region} targetRegion
+ * @return {Ext.util.Region} this
*/
constrainTo : function(r) {
var me = this,
* @param {Number} right right offset
* @param {Number} bottom bottom offset
* @param {Number} left left offset
+ * @return {Ext.util.Region} this
*/
adjust : function(t, r, b, l) {
var me = this;
/**
* Get the offset amount of a point outside the region
- * @param {String} axis optional
- * @param {Ext.util.Point} p the point
+ * @param {String} [axis]
+ * @param {Ext.util.Point} [p] the point
* @return {Ext.util.Offset}
*/
getOutOfBoundOffset: function(axis, p) {
/**
* Check whether the point / offset is out of bound
- * @param {String} axis optional
- * @param {Ext.util.Point/Number} p the point / offset
+ * @param {String} [axis]
+ * @param {Ext.util.Point/Number} [p] the point / offset
* @return {Boolean}
*/
isOutOfBound: function(axis, p) {
return (p < this.y || p > this.bottom);
},
- /*
+ /**
* Restrict a point within the region by a certain factor.
- * @param {String} axis Optional
- * @param {Ext.util.Point/Ext.util.Offset/Object} p
- * @param {Number} factor
+ * @param {String} [axis]
+ * @param {Ext.util.Point/Ext.util.Offset/Object} [p]
+ * @param {Number} [factor]
* @return {Ext.util.Point/Ext.util.Offset/Object/Number}
+ * @private
*/
restrict: function(axis, p, factor) {
if (Ext.isObject(axis)) {
}
},
- /*
+ /**
* Restrict an offset within the region by a certain factor, on the x-axis
* @param {Number} p
- * @param {Number} factor The factor, optional, defaults to 1
- * @return
+ * @param {Number} [factor=1] The factor.
+ * @return {Number}
+ * @private
*/
restrictX : function(p, factor) {
if (!factor) {
return p;
},
- /*
+ /**
* Restrict an offset within the region by a certain factor, on the y-axis
* @param {Number} p
- * @param {Number} factor The factor, optional, defaults to 1
+ * @param {Number} [factor] The factor, defaults to 1
+ * @return {Number}
+ * @private
*/
restrictY : function(p, factor) {
if (!factor) {
return p;
},
- /*
+ /**
* Get the width / height of this region
* @return {Object} an object with width and height properties
+ * @private
*/
getSize: function() {
return {
},
/**
- * Copy a new instance
+ * Create a copy of this Region.
* @return {Ext.util.Region}
*/
copy: function() {
/**
* Copy the values of another Region to this Region
- * @param {Region} The region to copy from.
- * @return {Ext.util.Point} this This point
+ * @param {Ext.util.Region} p The region to copy from.
+ * @return {Ext.util.Region} This Region
*/
copyFrom: function(p) {
var me = this;
return this;
},
- /**
+ /*
* Dump this to an eye-friendly string, great for debugging
* @return {String}
*/
return "Region[" + this.top + "," + this.right + "," + this.bottom + "," + this.left + "]";
},
-
/**
* Translate this region by the given offset amount
- * @param {Ext.util.Offset/Object} offset Object containing the <code>x</code> and <code>y</code> properties.
+ * @param {Ext.util.Offset/Object} x Object containing the `x` and `y` properties.
* Or the x value is using the two argument form.
- * @param {Number} The y value unless using an Offset object.
+ * @param {Number} y The y value unless using an Offset object.
* @return {Ext.util.Region} this This Region
*/
translateBy: function(x, y) {
return (this.top == region.top && this.right == region.right && this.bottom == region.bottom && this.left == region.left);
}
});
+
git.ithinksw.org / extjs.git / blobdiff