#include "dialog.h"
#include "ui_dialog.h"
#include "point_widget.h"

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
}

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

void Dialog::show_img(QImage img,int x, int y){

    if(img.isNull()){
        qDebug()<<"Null img";
        return;
    }
    pv = new Point_widget(img);
    pv->resize(QSize(200,200));

    QLayoutItem *item = ui->gridLayout->itemAtPosition(x, y);
    if (item) {
        QWidget *widget = item->widget(); // 获取 widget
        if (widget) {
            // 删除 widget，并释放内存
            ui->gridLayout->removeWidget(widget);
            widget->deleteLater();
            ui->gridLayout->addWidget(pv,x,y);
        }
    }else{
        ui->gridLayout->addWidget(pv,x,y);
    }
}

void Dialog::update_img(QImage img)
{
    if(img.isNull()){
        qDebug()<<"Null img";
        return;
    }
    pv->update_image(img);
}