imagemacro.java

xwiki 源码

/**
 * ===================================================================
 *
 * Copyright (c) 2003,2004 Ludovic Dubost, All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details, published at 
 * http://www.gnu.org/copyleft/lesser.html or in lesser.txt in the
 * root folder of this distribution.

 * Created by
 * User: Ludovic Dubost
 * Date: 24 ao鹴 2004
 * Time: 20:03:03
 */
package com.xpn.xwiki.render.macro;

import org.radeox.macro.BaseLocaleMacro;
import org.radeox.macro.parameter.MacroParameter;
import org.radeox.api.engine.context.RenderContext;
import org.radeox.api.engine.RenderEngine;

import java.io.Writer;
import java.io.IOException;

import com.xpn.xwiki.render.XWikiRadeoxRenderEngine;
import com.xpn.xwiki.doc.XWikiDocument;
import com.xpn.xwiki.XWikiContext;

public class ImageMacro  extends BaseLocaleMacro {
  public String getLocaleKey() {
    return "macro.image";
  }

  public void execute(Writer writer, MacroParameter params)
      throws IllegalArgumentException, IOException {

    RenderContext context = params.getContext();
    RenderEngine engine = context.getRenderEngine();

    String img = params.get("text", 0);
    String height = params.get("height", 1);
    String width = params.get("width", 2);

    XWikiContext xcontext = ((XWikiRadeoxRenderEngine)engine).getContext();
    XWikiDocument doc = xcontext.getDoc();

    StringBuffer str = new StringBuffer();
    str.append("<img src=\"");
    str.append(doc.getAttachmentURL(img, "download", xcontext));
    str.append("\" ");
    if ((!"none".equals(height))&&(height!=null))
     str.append("height=\"" + height + "\" ");
    if ((!"none".equals(width))&&(width!=null))
           str.append("width=\"" + width + "\" ");
    str.append("alt=\"");
    str.append(img);
    str.append("\" />");
    writer.write(str.toString());
  }
}