public function init()
{
$pagenums = floor($this->rownum / $this->rowper);
//155/10=15页
$this->offset = $this->pagenum == $pagenums ? $this->rownum % $this->rowper : $this->rowper;
$this->limit = ($this->pagenum - 1) * $this->rowper;
$this->bar = array();
//添加pre
$pre = new Page(Page::PRE, Page::NOSELECTED, 0, Page::EDITABLE, $this->url . ($this->pagenum - 1));
if ($this->pagenum == 1) {
$pre->setEditable(Page::NOT_EDITABLE);
}
$this->bar[] = $pre;
//添加第一页
$page1 = new Page(Page::NOR, Page::NOSELECTED, 1, Page::EDITABLE, $this->url . "1");
if ($this->pagenum == 1) {
$page1->setEditable(Page::NOT_EDITABLE);
$page1->setSelected(page::SELECTED);
}
$this->bar[] = $page1;
$start = 2;
$end = $pagenums - 1;
//添加...
$flag = 0;
if ($pagenums > $this->barnum) {
//添加前...
if (floor(($this->barnum - 1) / 2) + 1 < $this->pagenum) {
$pagelue1 = new Page(Page::LUE, Page::NOSELECTED, 0, page::NOT_EDITABLE, 0);
$start = $this->pagenum + 1 - floor(($this->barnum - 1) / 2);
$this->bar[] = $pagelue1;
}
//编辑后...但不添加
if ($this->pagenum < $pagenums - floor($this->pagenum / 2)) {
$flag = 1;
$end = $this->pagenum + floor($this->barnum / 2);
}
}
//添加数字
for ($i = $start; $i <= $end; $i++) {
$page = new Page(Page::NOR, Page::NOSELECTED, $i, Page::EDITABLE, $this->url . "{$i}");
if ($i == $this->pagenum) {
$page->setSelected(Page::SELECTED);
$page->setEditable(Page::NOT_EDITABLE);
}
$this->bar[] = $page;
}
//添加后...
if ($flag == 1) {
$pagelue2 = new Page(Page::LUE, Page::NOSELECTED, 0, page::NOT_EDITABLE, 0);
$this->bar[] = $pagelue2;
}
//添加最后一页
$pageend = new Page(Page::NOR, Page::NOSELECTED, $pagenums, Page::EDITABLE, $this->url . "{$pagenums}");
if ($this->pagenum == $pagenums) {
$pageend->setEditable(Page::NOT_EDITABLE);
$pageend->setSelected(page::SELECTED);
}
$this->bar[] = $pageend;
//添加latter
$latter = new Page(Page::LAT, Page::NOSELECTED, 0, Page::EDITABLE, $this->url . ($this->pagenum + 1));
if ($this->pagenum == $pagenums) {
$latter->setEditable(Page::NOT_EDITABLE);
}
$this->bar[] = $latter;
}
