85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
#include "pagingutil.h"
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PagingUtil::PagingUtil(QObject* parent)
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: QObject(parent)
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, totalSize(10)
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, sizeofPerPage(2)
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, curSelectNumber(1)
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{
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}
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PagingUtil::~PagingUtil() {
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}
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PagingUtil &PagingUtil::operator=(const PagingUtil &other) {
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this->totalSize = other.totalSize;
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this->sizeofPerPage = other.sizeofPerPage;
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this->curSelectNumber = other.curSelectNumber;
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return *this;
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}
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int PagingUtil::getTotalSize() const {
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return totalSize;
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}
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void PagingUtil::setTotalSize(int size) {
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totalSize = size;
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pre2ReCacheNumbers();
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}
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int PagingUtil::getSizeofPerPage() const {
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return sizeofPerPage;
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}
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void PagingUtil::setSizeofPerPage(int size) {
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Q_ASSERT(size > 0);
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sizeofPerPage = size;
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pre2ReCacheNumbers();
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}
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void PagingUtil::numberSelected(int number) {
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if (number < 1) {
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return;
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}
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if (number > getPageSize()) {
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return;
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}
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curSelectNumber = number;
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pre2ReCacheNumbers();
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emit numberSelectChanged();
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}
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bool PagingUtil::isSelectedNumber(int number) const {
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return curSelectNumber == number;
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}
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int PagingUtil::getPageSize() const {
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int pageSize = 1;
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if (totalSize != 0) {
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pageSize = (totalSize - 1) / sizeofPerPage + 1;
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}
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return pageSize;
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}
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void PagingUtil::pre2ReCacheNumbers() {
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int oldNumberSize = curCacheNumbers.size();
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reCacheNumbers();
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if (curCacheNumbers.size() != oldNumberSize) {
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emit numberArraySizeChanged();
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}
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emit numbersChanged();
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//check select number when total size changed
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auto pageSize = getPageSize();
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if (curSelectNumber > pageSize) {
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curSelectNumber = pageSize;
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emit numberSelectChanged();
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}
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}
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