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