| 2,6 → 2,7 |
|---|
| |
| public class CollectionInfo |
| { |
| /** total number of rows in list */ |
| private int size; |
| |
| public int getSize() |
| 12,5 → 13,85 |
|---|
| public void setSize(int size) |
| { |
| this.size = size; |
| recalc(); |
| } |
| |
| /** current selected page */ |
| private int currentPage; |
| |
| protected int normPage(int page) |
| { |
| if(totalPages <= 0 || page <= 0) |
| return 0; |
| else if(page < totalPages) |
| return page; |
| else |
| return (totalPages - 1); |
| } |
| |
| public int getCurrentPage() |
| { |
| return normPage(currentPage); |
| } |
| |
| public void setCurrentPage(int currentPage) |
| { |
| this.currentPage = currentPage; |
| } |
| |
| /** number of rows on one page */ |
| private int rowsPerPage; |
| |
| public int getRowsPerPage() |
| { |
| return rowsPerPage; |
| } |
| |
| public void setRowsPerPage(int rowsPerPage) |
| { |
| this.rowsPerPage = rowsPerPage; |
| recalc(); |
| } |
| |
| /** total number of pages */ |
| private int totalPages; |
| |
| public int getTotalPages() |
| { |
| return totalPages; |
| } |
| |
| public int getFirstPage() |
| { |
| return 0; |
| } |
| |
| public int getLastPage() |
| { |
| return normPage(totalPages - 1); |
| } |
| |
| public int getPrevPage() |
| { |
| return normPage(currentPage - 1); |
| } |
| |
| public int getNextPage() |
| { |
| return normPage(currentPage + 1); |
| } |
| |
| protected void recalc() |
| { |
| if(rowsPerPage > 0) |
| totalPages = (int)Math.ceil((double)size / rowsPerPage); |
| } |
| |
| public void init(int size, int currentPage, int rowsPerPage) |
| { |
| this.size = size; |
| this.currentPage = currentPage; |
| this.rowsPerPage = rowsPerPage; |
| recalc(); |
| } |
| } |