--- /dev/null
+/*
+ * extensions/fbox.js
+ *
+ * Part of the jsMath package for mathematics on the web.
+ *
+ * This file implements the \fbox macro. It will be loaded
+ * automatically when needed, or can be loaded by
+ *
+ * jsMath.Extension.Require('fbox');
+ *
+ * ---------------------------------------------------------------------
+ *
+ * Copyright 2005-2006 by Davide P. Cervone
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/********************************************************************/
+
+jsMath.Add(jsMath.HTML,{
+
+ /*
+ * Create a colored frame
+ */
+ Frame: function (x,y,w,h,c,pos) {
+
+ h -= 2/jsMath.em; // use 2 pixels to compensate for border size
+ w -= 2/jsMath.em;
+ y -= 1/jsMath.em;
+ if (!c) {c = ''} else {c = ' '+c};
+ if (pos) {pos = 'absolute;'} else
+ {pos = 'relative; margin-right: '+this.Em(-(w+2/jsMath.em))+'; '}
+ return '<img src="'+jsMath.blank+'" style="position:' + pos
+ + 'vertical-align: '+this.Em(y)+'; left: '+this.Em(x)+'; '
+ + 'width:' +this.Em(w*jsMath.Browser.imgScale)+'; '
+ + 'height:'+this.Em(h*jsMath.Browser.imgScale)+'; '
+ + 'border: 1px solid'+c+';" />';
+ }
+
+});
+
+jsMath.Package(jsMath.Parser,{
+
+ macros: {fbox: 'FBox'},
+
+ /*
+ * Implement \fbox{...}
+ */
+ FBox: function (name) {
+ var text = this.GetArgument(this.cmd+name); if (this.error) return;
+ var arg = jsMath.Box.InternalMath(text,this.mlist.data.size);
+ var f = 0.25 * jsMath.sizes[this.mlist.data.size]/100;
+ var box = jsMath.Box.Set(arg,this.mlist.data.style,this.mlist.data.size,1).Remeasured();
+ var frame = jsMath.HTML.Frame(-f,-box.d-f,box.w+2*f,box.h+box.d+2*f);
+ box.html = frame + box.html + jsMath.HTML.Spacer(f);
+ box.h += f; box.d += f; box.w +=2*f; box.x += f;
+ box.bh = Math.max(box.bh,box.h); box.bd = Math.max(box.bd,box.d);
+ this.mlist.Add(jsMath.mItem.Atom('ord',box));
+ }
+
+});