X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/docs/source/ext-base-region.html
diff --git a/docs/source/ext-base-region.html b/docs/source/ext-base-region.html
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+
+
+ The source code
+
+
+
+
+ Ext.lib.Region = function(t, r, b, l) {
+ var me = this;
+ me.top = t;
+ me[1] = t;
+ me.right = r;
+ me.bottom = b;
+ me.left = l;
+ me[0] = l;
+ };
+
+ Ext.lib.Region.prototype = {
+ contains : function(region) {
+ var me = this;
+ return ( region.left >= me.left &&
+ region.right <= me.right &&
+ region.top >= me.top &&
+ region.bottom <= me.bottom );
+
+ },
+
+ getArea : function() {
+ var me = this;
+ return ( (me.bottom - me.top) * (me.right - me.left) );
+ },
+
+ intersect : function(region) {
+ var me = this,
+ t = Math.max(me.top, region.top),
+ r = Math.min(me.right, region.right),
+ b = Math.min(me.bottom, region.bottom),
+ l = Math.max(me.left, region.left);
+
+ if (b >= t && r >= l) {
+ return new Ext.lib.Region(t, r, b, l);
+ }
+ },
+
+ union : function(region) {
+ var me = this,
+ t = Math.min(me.top, region.top),
+ r = Math.max(me.right, region.right),
+ b = Math.max(me.bottom, region.bottom),
+ l = Math.min(me.left, region.left);
+
+ return new Ext.lib.Region(t, r, b, l);
+ },
+
+ constrainTo : function(r) {
+ var me = this;
+ me.top = me.top.constrain(r.top, r.bottom);
+ me.bottom = me.bottom.constrain(r.top, r.bottom);
+ me.left = me.left.constrain(r.left, r.right);
+ me.right = me.right.constrain(r.left, r.right);
+ return me;
+ },
+
+ adjust : function(t, l, b, r) {
+ var me = this;
+ me.top += t;
+ me.left += l;
+ me.right += r;
+ me.bottom += b;
+ return me;
+ }
+ };
+
+ Ext.lib.Region.getRegion = function(el) {
+ var p = Ext.lib.Dom.getXY(el),
+ t = p[1],
+ r = p[0] + el.offsetWidth,
+ b = p[1] + el.offsetHeight,
+ l = p[0];
+
+ return new Ext.lib.Region(t, r, b, l);
+ };
+
+
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