1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
package io.dico.dicore.command.chat.help.defaults;
import io.dico.dicore.command.ExecutionContext;
import io.dico.dicore.command.ICommandAddress;
import io.dico.dicore.command.chat.help.*;
import org.bukkit.permissions.Permissible;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
public class DefaultPageBuilder implements IPageBuilder {
@Override
public String getPage(List<IHelpTopic> helpTopics, IPageLayout pageLayout, ICommandAddress target,
Permissible viewer, ExecutionContext context, int pageNum, int pageLen) {
if (pageLen <= 0 || pageNum < 0) {
throw new IllegalArgumentException();
}
List<IHelpComponent> components = new LinkedList<>();
for (IHelpTopic topic : helpTopics) {
components.addAll(topic.getComponents(target, viewer, context, true));
}
PageBorders pageBorders = null;
int componentStartIdx = -1;
int componentEndIdx = -1;
int totalPageCount = 0;
int curPageLines = 0;
ListIterator<IHelpComponent> iterator = components.listIterator();
while (iterator.hasNext()) {
if (curPageLines == 0) {
if (pageBorders != null) {
iterator.add(pageBorders.getFooter());
}
if (pageNum == totalPageCount) {
componentStartIdx = iterator.nextIndex();
} else if (pageNum + 1 == totalPageCount) {
componentEndIdx = iterator.nextIndex();
}
pageBorders = pageLayout.getPageBorders(target, viewer, context, totalPageCount + 1);
if (pageBorders != null) {
iterator.add(pageBorders.getHeader());
iterator.previous();
curPageLines += pageBorders.getFooter().lineCount();
}
totalPageCount++;
}
IHelpComponent component = iterator.next();
int lineCount = component.lineCount();
curPageLines += lineCount;
if (curPageLines >= pageLen) {
curPageLines = 0;
}
}
if (componentStartIdx == -1) {
// page does not exist
return "";
}
if (componentEndIdx == -1) {
componentEndIdx = components.size();
}
StringBuilder sb = new StringBuilder();
iterator = components.listIterator(componentStartIdx);
int count = componentEndIdx - componentStartIdx;
boolean first = true;
while (count-- > 0) {
IHelpComponent component = iterator.next();
if (component instanceof IPageBorder) {
((IPageBorder) component).setPageCount(totalPageCount);
}
if (first) {
first = false;
} else {
sb.append('\n');
}
component.appendTo(sb);
}
return sb.toString();
}
public static String combine(List<IHelpComponent> components) {
StringBuilder rv = new StringBuilder();
Iterator<IHelpComponent> iterator = components.iterator();
if (iterator.hasNext()) {
iterator.next().appendTo(rv);
}
while (iterator.hasNext()) {
rv.append('\n');
iterator.next().appendTo(rv);
}
return rv.toString();
}
}
|
