#include "album.h"
#include "ui_album.h"

album::album(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::album)
{
    ui->setupUi(this);
    this->installEventFilter(this);

}

album::~album()
{
    delete ui;
}
void album::album_init()
{
}
bool album::eventFilter(QObject *watch, QEvent *evn)
{
    static int press_x;//摁下的x坐标
    static int press_y;
    static int relea_x;
    static int relea_y;

    QMouseEvent *event = static_cast<QMouseEvent *>(evn);

    if(event->type()==QEvent::MouseButtonPress)//鼠标摁下
    {
        press_x = event->globalX();
        press_y = event->globalY();
    }
 qDebug()<<press_x;
    if(event->type()==QEvent::MouseButtonRelease)//鼠标释放
    {
         relea_x = event->globalX();
         relea_y = event->globalY();
    }

    //判断滑动方向（右滑）
    if((relea_x - press_x)>20 && event->type()==QEvent::MouseButtonRelease && qAbs(relea_y-press_y)<50)
    {
        int current_page = ui->stackedWidget->currentIndex();// 获取当前页面的索引

        if(current_page<=2)
        {
            ui->label->setPixmap(ui->stackedWidget->currentWidget()->grab());//获取当前页面

            QPropertyAnimation *animation1 = new QPropertyAnimation(ui->label,"geometry");
            animation1->setDuration(1000);
            animation1->setStartValue(QRect(0,0,this->width(),this->height()));
            animation1->setEndValue(QRect(this->width()*2,0,this->width(),this->height()));
            //animation1->start();

            ui->stackedWidget->setCurrentIndex(current_page+1);

            QPropertyAnimation *animation2 = new QPropertyAnimation(ui->stackedWidget->currentWidget(),"geometry");
            animation2->setDuration(1000);
            animation2->setStartValue(QRect(-this->width()*2,0,this->width(),this->height()));
            animation2->setEndValue(QRect(0,0,this->width(),this->height()));

            QParallelAnimationGroup *group = new QParallelAnimationGroup;
            group->addAnimation(animation1);
            group->addAnimation(animation2);
            group->start();
        }
    }

    //判断滑动方向（左滑）
    if((press_x - relea_x)>20 && event->type()==QEvent::MouseButtonRelease && qAbs(relea_y-press_y)<50)
    {
        int current_page = ui->stackedWidget->currentIndex();
        ui->page->setStyleSheet(image_path);
        if(current_page>=0)
        {
            ui->label->setPixmap(ui->stackedWidget->currentWidget()->grab());

            QPropertyAnimation *animation1 = new QPropertyAnimation(ui->label,"geometry");
            animation1->setDuration(1000);
            animation1->setStartValue(QRect(0,0,this->width(),this->height()));
            animation1->setEndValue(QRect(-this->width(),0,this->width(),this->height()));
            //animation1->start();

            ui->stackedWidget->setCurrentIndex(current_page-1);

            QPropertyAnimation *animation2 = new QPropertyAnimation(ui->stackedWidget->currentWidget(),"geometry");
            animation2->setDuration(1000);
            animation2->setStartValue(QRect(this->width()*2,0,this->width(),this->height()));
            animation2->setEndValue(QRect(0,0,this->width(),this->height()));

            QParallelAnimationGroup *group = new QParallelAnimationGroup;
            group->addAnimation(animation1);
            group->addAnimation(animation2);
            group->start();
        }
    }

    return QWidget::eventFilter(watch,evn);
}