#include "tablepagewidget.h"
#include "ui_tablepagewidget.h"

#include <QWidget>
#if _MSC_VER >= 1600
#pragma execution_character_set("utf-8")
#endif


TablePageWidget::TablePageWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::TablePageWidget),
    pageLine(10),
    pageTotal(0),
    currentPage(0),
    currentLine(0),
    currentFivePage(0),
    TotalFivePage(0)
{
    ui->setupUi(this);
    ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    ui->tableWidget->verticalHeader()->setHidden(true);
    initForm();

}

TablePageWidget::~TablePageWidget()
{
    delete ui;
}

void TablePageWidget::setTableHeaders(QStringList headerList)
{
    for(int i = 0; i < headerList.size(); i++)
        ui->tableWidget->insertColumn(i);
    for(int i = 0; i < headerList.size(); i++)
        ui->tableWidget->setHorizontalHeaderItem(i, new QTableWidgetItem(headerList.at(i)));
}

void TablePageWidget::setTableData(QStringList dataList)
{
    this->dataList = dataList;
    int col = ui->tableWidget->columnCount();
    int row = dataList.size() / col;
    pageTotal = row % pageLine;
    pageTotal = pageTotal + 1;
    currentPage = 1;
    currentLine = 0;
    TotalFivePage = (pageTotal / 5 > 0) ? 0 : (pageTotal / 5 + 2);
    currentFivePage = 1;
    for(int i = currentLine; i < currentPage * pageLine; i++)
    {
        for(int j = 0; j < col; j++)
            ui->tableWidget->setItem(i, j, new QTableWidgetItem(this->dataList.at(currentLine * col + j)));
    }
    if(pageTotal > 5)
    {
        foreach (QAbstractButton* btn, this->findChildren<QAbstractButton *>()) {
            if(!(btn->text() == "<"))
                btn->setEnabled(true);
        }
    }
    else if(pageTotal <= 5)
    {
        foreach (QAbstractButton* btn, this->findChildren<QAbstractButton *>()){
            if(btn->text().toInt() <= pageTotal)
                btn->setEnabled(true);
        }
    }
}

void TablePageWidget::appendTableData(QStringList newDataList)
{
    this->dataList<< newDataList;
}

void TablePageWidget::changeTablePageLine(int idx)
{
    switch (idx) {
    case 0:
        this->pageLine = 10;
        break;
    case 1:
        this->pageLine = 50;
        break;
    case 2:
        this->pageLine = 80;
        break;
    case 3:
        this->pageLine = 100;
        break;
    }
    if(dataList.isEmpty())
        return;
    pageTotal = dataList.size() / currentLine;
    TotalFivePage = (pageTotal / 5 > 0) ? (pageTotal / 5 + 1) : 0;
    if(pageTotal < currentPage)
    {
        currentPage == pageTotal;
        if(currentPage % 5 == 0 && currentPage >= 5)
            currentFivePage = currentPage / 5;
        else if(currentPage % 5 != 0)
            currentFivePage = currentPage / 5 + 1;
        else if(currentPage < 5)
            currentFivePage = 1;

        setCurrentFivePage(this->currentFivePage);

    }
    setCurrentData();

}

void TablePageWidget::on_toolbuttonBehind_clicked()
{
    this->currentFivePage++;
    setCurrentFivePage(currentFivePage);
}

void TablePageWidget::on_toolbuttonFront_clicked()
{
    if(currentFivePage > 1)
        currentFivePage--;
    setCurrentFivePage(currentFivePage);
}

void TablePageWidget::on_toolbutton1_clicked()
{
    currentPage = ui->btn1->text().toInt();
    setCurrentData();
}

void TablePageWidget::on_toolbutton2_clicked()
{
    currentPage = ui->btn2->text().toInt();
    setCurrentData();
}

void TablePageWidget::on_toolbutton3_clicked()
{
    currentPage = ui->btn3->text().toInt();
    setCurrentData();
}

void TablePageWidget::on_toolbutton4_clicked()
{
    currentPage = ui->btn4->text().toInt();
    setCurrentData();
}

void TablePageWidget::on_toolbutton5_clicked()
{
    currentPage = ui->btn5->text().toInt();
    setCurrentData();
}

void TablePageWidget::initForm()
{
    QStringList pageNum;
    pageNum.append("10条/页");
    pageNum.append("50条/页");
    pageNum.append("80条/页");
    pageNum.append("100条/页");
    ui->comboBox->addItems(pageNum);
    foreach (QAbstractButton* btn, this->findChildren<QAbstractButton *>()) {
        btn->setEnabled(false);
    }
    this->dataList.clear();
    connect(ui->comboBox, SIGNAL(activated(int)), this, SLOT(changeTablePageLine(int)));
    connect(ui->btnFront, &QToolButton::clicked, this, &TablePageWidget::on_toolbuttonFront_clicked);
    connect(ui->btnBehind, &QToolButton::clicked, this, &TablePageWidget::on_toolbuttonBehind_clicked);
}

void TablePageWidget::setCurrentFivePage(int idx)
{
    ui->btn1->setText(QString::number(5 * (idx - 1) + 1));
    ui->btn2->setText(QString::number(5 * (idx - 1) + 2));
    ui->btn2->setText(QString::number(5 * (idx - 1) + 3));
    ui->btn4->setText(QString::number(5 * (idx - 1) + 4));
    ui->btn5->setText(QString::number(5 * (idx - 1) + 5));

    if(TotalFivePage > ui->btn5->text().toInt() && currentFivePage != 1)
    {
        foreach (QAbstractButton* btn, this->findChildren<QAbstractButton *>()) {
            btn->setEnabled(true);
            if(btn->text().toInt() == currentPage)
                btn->setChecked(true);
            else
                btn->setChecked(false);
        }
    }
    else if(TotalFivePage > ui->btn5->text().toInt() && currentFivePage == 1)
    {
        foreach (QAbstractButton* btn, this->findChildren<QAbstractButton *>()) {
            if(btn != ui->btnFront)
                btn->setEnabled(true);
            else
                btn->setEnabled(false);

            if(btn->text().toInt() == currentPage)
                btn->setChecked(true);
            else
                btn->setChecked(false);
        }
    }


}

void TablePageWidget::setCurrentData()
{
    if(!this->dataList.isEmpty())
    {
        currentLine = pageLine * (currentPage - 1);
        for(int i = currentLine; i < currentPage * pageLine; i++)
        {
            for(int j = 0; j < ui->tableWidget->colorCount(); j++)
                ui->tableWidget->setItem(currentLine - (pageLine * currentPage),
                                         j, new QTableWidgetItem(this->dataList.at(currentLine * ui->tableWidget->columnCount() + j)));
        }

    }
}