1 | |
package org.jtheque.utils.print; |
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
import java.awt.FontMetrics; |
20 | |
import java.awt.Graphics; |
21 | |
import java.awt.print.PageFormat; |
22 | |
import java.awt.print.Pageable; |
23 | |
import java.awt.print.Printable; |
24 | |
import java.util.ArrayList; |
25 | |
import java.util.Collection; |
26 | |
import java.util.List; |
27 | |
|
28 | |
|
29 | |
|
30 | |
|
31 | |
|
32 | |
|
33 | 0 | final class ArrayPrinter implements Pageable { |
34 | |
private final List<String> list; |
35 | |
private int nbreElementsByPage; |
36 | |
|
37 | |
private final int numberOfPages; |
38 | |
private final PageFormat format; |
39 | |
|
40 | |
private static final int LINE_HEIGHT = 14; |
41 | |
private static final int HEIGHT_MARGIN = 150; |
42 | |
|
43 | |
|
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
ArrayPrinter(Collection<String> list) { |
49 | 0 | super(); |
50 | |
|
51 | 0 | this.list = new ArrayList<String>(list); |
52 | |
|
53 | 0 | format = new PageFormat(); |
54 | 0 | format.setOrientation(PageFormat.PORTRAIT); |
55 | 0 | format.setPaper(new A4()); |
56 | |
|
57 | 0 | nbreElementsByPage = (int) Math.floor((format.getImageableHeight() - HEIGHT_MARGIN) / LINE_HEIGHT); |
58 | 0 | numberOfPages = list.size() / nbreElementsByPage; |
59 | 0 | } |
60 | |
|
61 | |
@Override |
62 | |
public int getNumberOfPages() { |
63 | 0 | return numberOfPages; |
64 | |
} |
65 | |
|
66 | |
@Override |
67 | |
public PageFormat getPageFormat(int pageIndex) { |
68 | 0 | return format; |
69 | |
} |
70 | |
|
71 | |
@Override |
72 | |
public Printable getPrintable(int pageIndex) { |
73 | 0 | if (pageIndex > numberOfPages) { |
74 | 0 | throw new IndexOutOfBoundsException(); |
75 | |
} |
76 | |
|
77 | 0 | int start = nbreElementsByPage * pageIndex; |
78 | 0 | int stop = nbreElementsByPage * (pageIndex + 1) - 1; |
79 | |
|
80 | 0 | stop = Math.max(stop, list.size()); |
81 | |
|
82 | 0 | return new ArrayPrintable(start, stop); |
83 | |
} |
84 | |
|
85 | |
|
86 | |
|
87 | |
|
88 | |
|
89 | |
|
90 | 0 | private final class ArrayPrintable implements Printable { |
91 | |
private int start; |
92 | |
private final int stop; |
93 | |
|
94 | |
private static final int MARGIN = 75; |
95 | |
private static final int FONT_SIZE = 12; |
96 | |
|
97 | |
|
98 | |
|
99 | |
|
100 | |
|
101 | |
|
102 | |
|
103 | 0 | private ArrayPrintable(int start, int stop) { |
104 | 0 | super(); |
105 | |
|
106 | 0 | this.start = start; |
107 | 0 | this.stop = stop; |
108 | 0 | } |
109 | |
|
110 | |
@Override |
111 | |
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) { |
112 | 0 | FontMetrics metrics = graphics.getFontMetrics(); |
113 | |
|
114 | 0 | graphics.setFont(graphics.getFont().deriveFont(FONT_SIZE)); |
115 | |
|
116 | 0 | int increment = metrics.getHeight() + 2; |
117 | |
|
118 | 0 | if (nbreElementsByPage == 0) { |
119 | 0 | double heightPg = pageFormat.getImageableHeight(); |
120 | 0 | nbreElementsByPage = (int) (heightPg / increment); |
121 | |
} |
122 | |
|
123 | 0 | if (pageIndex >= numberOfPages) { |
124 | 0 | return NO_SUCH_PAGE; |
125 | |
} else { |
126 | 0 | int vertical = MARGIN; |
127 | |
|
128 | 0 | while (start <= stop) { |
129 | 0 | vertical += increment; |
130 | 0 | graphics.drawString(list.get(start), MARGIN, vertical); |
131 | 0 | start++; |
132 | |
} |
133 | |
|
134 | 0 | return PAGE_EXISTS; |
135 | |
} |
136 | |
} |
137 | |
} |
138 | |
} |