1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.taglib.ui;
24  
25  import com.liferay.portal.kernel.servlet.StringServletResponse;
26  import com.liferay.taglib.util.IncludeTag;
27  
28  import java.io.IOException;
29  
30  import javax.servlet.RequestDispatcher;
31  import javax.servlet.ServletContext;
32  import javax.servlet.ServletException;
33  import javax.servlet.http.HttpServletRequest;
34  import javax.servlet.http.HttpServletResponse;
35  import javax.servlet.jsp.JspException;
36  
37  /**
38   * <a href="PngImageTag.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Brian Wing Shun Chan
41   *
42   */
43  public class PngImageTag extends IncludeTag {
44  
45      public static void doTag(
46              String image, String height, String width,
47              ServletContext servletContext, HttpServletRequest request,
48              HttpServletResponse response)
49          throws IOException, ServletException {
50  
51          doTag(_PAGE, image, height, width, servletContext, request, response);
52      }
53  
54      public static void doTag(
55              String page, String image, String height, String width,
56              ServletContext servletContext, HttpServletRequest request,
57              HttpServletResponse response)
58          throws IOException, ServletException {
59  
60          request.setAttribute("liferay-ui:png_image:image", image);
61          request.setAttribute("liferay-ui:png_image:height", height);
62          request.setAttribute("liferay-ui:png_image:width", width);
63  
64          RequestDispatcher requestDispatcher =
65              servletContext.getRequestDispatcher(page);
66  
67          requestDispatcher.include(request, response);
68      }
69  
70      public int doEndTag() throws JspException {
71          try {
72              ServletContext servletContext = getServletContext();
73              HttpServletRequest request = getServletRequest();
74              StringServletResponse response = getServletResponse();
75  
76              doTag(_image, _height, _width, servletContext, request, response);
77  
78              pageContext.getOut().print(response.getString());
79  
80              return EVAL_PAGE;
81          }
82          catch (Exception e) {
83              throw new JspException(e);
84          }
85      }
86  
87      public void setImage(String image) {
88          _image = image;
89      }
90  
91      public void setHeight(String height) {
92          _height = height;
93      }
94  
95      public void setWidth(String width) {
96          _width = width;
97      }
98  
99      protected String getDefaultPage() {
100         return _PAGE;
101     }
102 
103     private static final String _PAGE = "/html/taglib/ui/png_image/page.jsp";
104 
105     private String _image;
106     private String _height;
107     private String _width;
108 
109 }