Background


1   /*
2    *    Copyright 2005 Dusty Phillips
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.buchuki.ensmer.builtin;
18  
19  import com.buchuki.ensmer.EnsmerManager;
20  import com.buchuki.ensmer.input.InputManager;
21  import com.buchuki.ensmer.input.command.*;
22  import com.buchuki.ensmer.input.event.*;
23  import com.buchuki.ensmer.object.Backend;
24  import com.buchuki.ensmer.text.TextInput;
25  import com.sun.j3d.utils.geometry.Text2D;
26  import java.awt.Font  ;
27  import java.awt.event.KeyEvent  ;
28  import java.io.Serializable  ;
29  import javax.media.j3d.*;
30  import javax.vecmath.Color3f;
31  
32  /**
33   * Class to represent an object that displays an image on the background of
34   * the scene. This is the intended purpose, but it actually only stores a
35   * filename and it is up to the frontend to display the background object.
36   *
37   * @author  Dusty Phillips [dusty@buchuki.com]
38   */
39  public class Background extends Backend {
40      
41      /**
42       * Creates a new instance of a default (empty) Background
43       */
44      public Background() {
45      }
46      
47      /**
48       * Create a background object based on previously serialized data
49       * representing the note's filename
50       */
51      public Background(Serializable   data) {
52          this();
53      }
54      
55      /**
56       * When we get an ID, set up the Configurator default properties
57       */
58      public void setId(Long   id) {
59          super.setId(id);
60          if (getConfigProperty("filename") == null) {
61              setConfigProperty("filename", "");
62          }
63      }
64      
65      /**
66       * Get the Serializable for the Background object
67       *
68       * @return the TextInput storing the filename
69       */
70      public Serializable   getSerializable() {
71          return null;
72      }
73      
74      /**
75       * Get the filename for the Background object
76       */
77      public String   getFilename() {
78          String   filename = getConfigProperty("filename");
79          return filename == null ? "" : filename;
80      }
81      
82      /**
83       * Return a Branchgroup representing the <b>type</b> of this object so that
84       * Background objects can be manually added to the scene. Probably an interesting
85       * objicon could be created, but for now it simply creates a text2D containing
86       * the word 'Background'.
87       *
88       * @return a branchgroup representing the class of Static objects
89       */
90      @Override  
91      public static BranchGroup getRepresentation() {
92          Text2D text = new Text2D("Background", new Color3f(.7f, .1f, .6f), "Times",
93                  16, Font.BOLD);
94          Appearance app = text.getAppearance();
95          PolygonAttributes poly = new PolygonAttributes();
96          poly.setCullFace(poly.CULL_NONE);
97          app.setPolygonAttributes(poly);
98          BranchGroup ret = new BranchGroup();
99          ret.addChild(text);
100         return ret;
101     }
102 }
103
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