Rev 1027 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1020 | dev | 1 | package ak.hostadmiral.util; |
2 | |||
3 | public class CollectionInfo |
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4 | { |
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1027 | dev | 5 | /** total number of rows in list */ |
1020 | dev | 6 | private int size; |
7 | |||
8 | public int getSize() |
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9 | { |
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10 | return size; |
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11 | } |
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12 | |||
13 | public void setSize(int size) |
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14 | { |
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15 | this.size = size; |
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1027 | dev | 16 | recalc(); |
1020 | dev | 17 | } |
1027 | dev | 18 | |
19 | /** current selected page */ |
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20 | private int currentPage; |
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21 | |||
22 | protected int normPage(int page) |
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23 | { |
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24 | if(totalPages <= 0 || page <= 0) |
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25 | return 0; |
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26 | else if(page < totalPages) |
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27 | return page; |
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28 | else |
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29 | return (totalPages - 1); |
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30 | } |
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31 | |||
32 | public int getCurrentPage() |
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33 | { |
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34 | return normPage(currentPage); |
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35 | } |
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36 | |||
37 | public void setCurrentPage(int currentPage) |
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38 | { |
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39 | this.currentPage = currentPage; |
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40 | } |
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41 | |||
42 | /** number of rows on one page */ |
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43 | private int rowsPerPage; |
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44 | |||
45 | public int getRowsPerPage() |
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46 | { |
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47 | return rowsPerPage; |
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48 | } |
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49 | |||
50 | public void setRowsPerPage(int rowsPerPage) |
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51 | { |
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52 | this.rowsPerPage = rowsPerPage; |
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53 | recalc(); |
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54 | } |
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55 | |||
56 | /** total number of pages */ |
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57 | private int totalPages; |
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58 | |||
59 | public int getTotalPages() |
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60 | { |
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61 | return totalPages; |
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62 | } |
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63 | |||
64 | public int getFirstPage() |
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65 | { |
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66 | return 0; |
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67 | } |
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68 | |||
69 | public int getLastPage() |
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70 | { |
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71 | return normPage(totalPages - 1); |
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72 | } |
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73 | |||
74 | public int getPrevPage() |
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75 | { |
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76 | return normPage(currentPage - 1); |
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77 | } |
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78 | |||
79 | public int getNextPage() |
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80 | { |
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81 | return normPage(currentPage + 1); |
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82 | } |
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83 | |||
84 | protected void recalc() |
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85 | { |
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86 | if(rowsPerPage > 0) |
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1073 | dev | 87 | totalPages = (size + rowsPerPage - 1) / rowsPerPage; |
1027 | dev | 88 | } |
89 | |||
90 | public void init(int size, int currentPage, int rowsPerPage) |
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91 | { |
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92 | this.size = size; |
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93 | this.currentPage = currentPage; |
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94 | this.rowsPerPage = rowsPerPage; |
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95 | recalc(); |
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96 | } |
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1020 | dev | 97 | } |