#include "YxzpDialog.h"

YxzpDialog::YxzpDialog(QWidget *parent)
    : QDialog(parent)
{
    //    setStyleSheet("QDialog { background-color: #888; }");
    setWindowTitle("图片");
    setFixedSize(600, 500); // 固定窗口大小，和示例接近

    // 1. 边框属性行（示例里是占位，这里也做一个输入框）
    QHBoxLayout *layoutBorder = new QHBoxLayout;
    QLabel *labelBorder = new QLabel(QObject::tr("边框属性:"));
    labelBorder->setMinimumWidth(60);  // 统一最小宽度（可根据文本调整）
    labelBorder->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
    QLineEdit *editBorder = new QLineEdit;
    editBorder->setReadOnly(true);
    editBorder->setPlaceholderText("");
    layoutBorder->setContentsMargins(0, 20, 0, 0);
    layoutBorder->addWidget(labelBorder);
    layoutBorder->addWidget(editBorder);

    // 2. 图片路径行
    QHBoxLayout *layoutPath = new QHBoxLayout;
    QLabel *labelPath = new QLabel(QObject::tr("图片路径:"));
    labelPath->setMinimumWidth(60);  // 统一最小宽度（可根据文本调整）
    labelPath->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
    m_editPath = new QLineEdit;
    m_editPath->setReadOnly(true); // 只读，只能通过按钮选择
    QPushButton *btnSelect = new QPushButton("...");
    btnSelect->setFixedWidth(80);
    layoutPath->addWidget(labelPath);
    layoutPath->addWidget(m_editPath);
    layoutPath->addWidget(btnSelect);

    // 3. 预览区域
    QVBoxLayout *layoutPreview = new QVBoxLayout;
    QLabel *labelPreviewTitle = new QLabel(QObject::tr("预览"));
    m_labelPreview = new QLabel;
    m_labelPreview->setFrameStyle(QFrame::Box | QFrame::Sunken); // 加边框
    m_labelPreview->setAlignment(Qt::AlignCenter);
    m_labelPreview->setMinimumSize(550, 320); // 预览区域最小尺寸
    layoutPreview->addWidget(labelPreviewTitle);
    layoutPreview->addWidget(m_labelPreview);

    // 4. 按钮行
    QHBoxLayout *layoutButtons = new QHBoxLayout;
    QPushButton *btnOk = new QPushButton(QObject::tr("确定"));
    QPushButton *btnCancel = new QPushButton(QObject::tr("取消"));
    //    layoutButtons->setContentsMargins(0, 20, 0, 0);
    layoutButtons->addStretch(); // 推到右侧
    layoutButtons->addWidget(btnOk);
    layoutButtons->addWidget(btnCancel);

    // 总布局
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->addLayout(layoutBorder);
    mainLayout->addLayout(layoutPath);
    mainLayout->addLayout(layoutPreview);
    mainLayout->addStretch();
    mainLayout->addLayout(layoutButtons);
    mainLayout->setContentsMargins(20, 0, 20, 10);
    mainLayout->setSpacing(15);

    // 信号槽连接
    connect(btnSelect, &QPushButton::clicked, this, &YxzpDialog::onSelectImage);
    connect(btnOk, &QPushButton::clicked, this, &YxzpDialog::onAccept);
    connect(btnCancel, &QPushButton::clicked, this, &YxzpDialog::onReject);
}

QString YxzpDialog::getImagePath() const
{
    return m_imagePath;
}

void YxzpDialog::onSelectImage()
{
    // 弹出文件选择框，仅允许 JPG 图片
    QString filePath = QFileDialog::getOpenFileName(
                this,
                "选择图片",
                QDir::homePath(),
                "JPG 图片 (*.jpg *.jpeg)"
                );

    if (!filePath.isEmpty())
    {
        m_editPath->setText(filePath);
        // 加载并预览图片
        QPixmap pixmap(filePath);
        if (!pixmap.isNull())
        {
            // 按比例缩放预览
            QPixmap scaledPixmap = pixmap.scaled(
                        m_labelPreview->size(),
                        Qt::KeepAspectRatio,
                        Qt::SmoothTransformation
                        );
            m_labelPreview->setPixmap(scaledPixmap);
        }
    }
}

void YxzpDialog::onAccept()
{
    m_imagePath = m_editPath->text();
    accept(); // 关闭对话框，返回 QDialog::Accepted
}

void YxzpDialog::onReject()
{
    m_imagePath.clear();
    reject(); // 关闭对话框，返回 QDialog::Rejected
}