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3cdf3fd8 NR |
1 | package be.nikiroo.fanfix_swing.images; |
2 | ||
3 | import java.io.IOException; | |
4 | import java.io.InputStream; | |
5 | import java.util.HashMap; | |
6 | import java.util.Map; | |
7 | ||
8 | import javax.swing.ImageIcon; | |
9 | ||
10 | import be.nikiroo.utils.IOUtils; | |
11 | ||
12 | /** | |
13 | * Icons generator for this project. | |
14 | * | |
15 | * @author niki | |
16 | */ | |
17 | public class IconGenerator { | |
18 | /** | |
19 | * The available icons. | |
20 | * | |
21 | * @author niki | |
22 | */ | |
23 | public enum Icon { | |
24 | /** Icon used to clear text fields */ | |
25 | clear, | |
26 | /** Search icon (magnifying glass) */ | |
27 | search, | |
28 | /** An interrogation point */ | |
29 | unknown, | |
30 | /** A small, left-pointed arrow */ | |
31 | arrow_left, | |
32 | /** A small, right-pointed arrow */ | |
33 | arrow_right, | |
34 | /** A small, up-pointed arrow */ | |
35 | arrow_up, | |
36 | /** A small, down-pointed arrow */ | |
37 | arrow_down, | |
38 | /** An empty (transparent) icon */ | |
39 | empty, | |
40 | } | |
41 | ||
42 | /** | |
43 | * The available sizes. | |
44 | * | |
45 | * @author niki | |
46 | */ | |
47 | public enum Size { | |
48 | /** 4x4 pixels, only for {@link Icon#empty} */ | |
49 | x4(4), | |
50 | /** 8x8 pixels, only for {@link Icon#empty} */ | |
51 | x8(8), | |
52 | /** 16x16 pixels */ | |
53 | x16(16), | |
54 | /** 24x24 pixels */ | |
55 | x24(24), | |
56 | /** 32x32 pixels */ | |
57 | x32(32), | |
58 | /** 64x64 pixels */ | |
59 | x64(64); | |
60 | ||
61 | private int size; | |
62 | ||
63 | private Size(int size) { | |
64 | this.size = size; | |
65 | } | |
66 | ||
67 | /** | |
68 | * Return the size in pixels. | |
69 | * | |
70 | * @return the size | |
71 | */ | |
72 | public int getSize() { | |
73 | return size; | |
74 | } | |
75 | } | |
76 | ||
77 | static private Map<String, ImageIcon> map = new HashMap<String, ImageIcon>(); | |
78 | ||
79 | /** | |
80 | * Generate a new image. | |
81 | * | |
82 | * @param name the name of the resource | |
83 | * @param size the requested size | |
84 | * | |
85 | * @return the image, or NULL if it does not exist or does not exist at that | |
86 | * size | |
87 | */ | |
88 | static public ImageIcon get(Icon name, Size size) { | |
89 | String key = String.format("%s-%dx%d.png", name.name(), size.getSize(), size.getSize()); | |
90 | if (!map.containsKey(key)) { | |
91 | map.put(key, generate(key)); | |
92 | } | |
93 | ||
94 | return map.get(key); | |
95 | } | |
96 | ||
97 | /** | |
98 | * Generate a new image. | |
99 | * | |
100 | * @param filename the file name of the resource (no directory) | |
101 | * | |
102 | * @return the image, or NULL if it does not exist or does not exist at that | |
103 | * size | |
104 | */ | |
105 | static private ImageIcon generate(String filename) { | |
106 | try { | |
107 | InputStream in = IOUtils.openResource(IconGenerator.class, filename); | |
108 | if (in != null) { | |
109 | try { | |
110 | return new ImageIcon(IOUtils.toByteArray(in)); | |
111 | } finally { | |
112 | in.close(); | |
113 | } | |
114 | } | |
115 | } catch (IOException e) { | |
116 | e.printStackTrace(); | |
117 | } | |
118 | ||
119 | return null; | |
120 | } | |
121 | } |