Examples with ListDataProvider org.apache.wicket.markup.repeater.data.ListDataProvider used on opensource projects

Example 11 with ListDataProvider

use of org.apache.wicket.markup.repeater.data.ListDataProvider in project gitblit by gitblit.

the class MyTicketsPage method buildPager.

protected void buildPager(final String query, final String milestone, final String[] states, final String assignedTo, final String sort, final boolean desc, final String repositoryId, final int page, int pageSize, int count, int total) {
    boolean showNav = total > (2 * pageSize);
    boolean allowPrev = page > 1;
    boolean allowNext = (pageSize * (page - 1) + count) < total;
    add(new BookmarkablePageLink<Void>("prevLink", MyTicketsPage.class, queryParameters(query, milestone, states, assignedTo, sort, desc, repositoryId, page - 1)).setEnabled(allowPrev).setVisible(showNav));
    add(new BookmarkablePageLink<Void>("nextLink", MyTicketsPage.class, queryParameters(query, milestone, states, assignedTo, sort, desc, repositoryId, page + 1)).setEnabled(allowNext).setVisible(showNav));
    if (total <= pageSize) {
        add(new Label("pageLink").setVisible(false));
        return;
    }
    // determine page numbers to display
    int pages = count == 0 ? 0 : ((total / pageSize) + (total % pageSize == 0 ? 0 : 1));
    // preferred number of pagelinks
    int segments = 5;
    if (pages < segments) {
        // not enough data for preferred number of page links
        segments = pages;
    }
    int minpage = Math.min(Math.max(1, page - 2), pages - (segments - 1));
    int maxpage = Math.min(pages, minpage + (segments - 1));
    List<Integer> sequence = new ArrayList<Integer>();
    for (int i = minpage; i <= maxpage; i++) {
        sequence.add(i);
    }
    ListDataProvider<Integer> pagesDp = new ListDataProvider<Integer>(sequence);
    DataView<Integer> pagesView = new DataView<Integer>("pageLink", pagesDp) {

        private static final long serialVersionUID = 1L;

        @Override
        public void populateItem(final Item<Integer> item) {
            final Integer i = item.getModelObject();
            LinkPanel link = new LinkPanel("page", null, "" + i, MyTicketsPage.class, queryParameters(query, milestone, states, assignedTo, sort, desc, repositoryId, i));
            link.setRenderBodyOnly(true);
            if (i == page) {
                WicketUtils.setCssClass(item, "active");
            }
            item.add(link);
        }
    };
    add(pagesView);
}