#include "titleBar.h"
#include <QStyle>
#include <QScreen>
#include <QGuiApplication>


TitleBar::TitleBar(QWidget *parent)
    : QWidget(parent)
    , m_parentWindow(parent)
{
    setupUI();
    setFixedHeight(35);  // 稍微矮一点

    setAttribute(Qt::WA_StyledBackground, true);  // 启用样式背景
    setAttribute(Qt::WA_NoSystemBackground, false);

    // 确保有自己的调色板
    setAutoFillBackground(true);

    // 使用更具体的样式表
    QString style = R"(
        QWidget {
            background: #2c5282;
        }

        QLabel {
            color: white;
            font-size: 12px;
            background: transparent;
        }

        QPushButton {
            background: transparent;
            border: none;
            color: white;
            min-width: 30px;
            min-height: 30px;
        }
    )";

    setStyleSheet(style);
}

void TitleBar::setupUI()
{
    QHBoxLayout *layout = new QHBoxLayout(this);
    layout->setContentsMargins(4, 0, 0, 0);
    layout->setSpacing(0);

    // 标题
    m_titleLabel = new QLabel("窗口标题");
    m_titleLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);

    // 最大化/还原按钮
    m_maximizeButton = new QPushButton(tr("🗖"));  // 最大化图标
    m_maximizeButton->setObjectName("maximizeButton");
    m_maximizeButton->setToolTip("最大化");

    // 关闭按钮
    m_closeButton = new QPushButton("×");
    m_closeButton->setObjectName("closeButton");
    m_closeButton->setToolTip("关闭");

    layout->addWidget(m_titleLabel);
    layout->addWidget(m_maximizeButton);
    layout->addWidget(m_closeButton);

    // 连接信号
    connect(m_maximizeButton, &QPushButton::clicked, this, &TitleBar::maximizeClicked);
    connect(m_closeButton, &QPushButton::clicked, this, &TitleBar::closeClicked);
}

void TitleBar::setTitle(const QString &title)
{
    m_titleLabel->setText(title);
}

void TitleBar::updateMaximizeButton()
{
    if (m_parentWindow) {
        m_isMaximized = m_parentWindow->isMaximized();
        if (m_isMaximized) {
            m_maximizeButton->setText(tr("🗗"));  // 还原图标
            m_maximizeButton->setToolTip("还原");
        } else {
            m_maximizeButton->setText(tr("🗖"));  // 最大化图标
            m_maximizeButton->setToolTip("最大化");
        }
    }
}

void TitleBar::mousePressEvent(QMouseEvent *event)
{
    if (event->button() == Qt::LeftButton) {
        m_dragStartPosition = event->globalPosition().toPoint() - m_parentWindow->frameGeometry().topLeft();
        event->accept();
    }
}

void TitleBar::mouseMoveEvent(QMouseEvent *event)
{
    if (event->buttons() & Qt::LeftButton) {
        m_parentWindow->move(event->globalPosition().toPoint() - m_dragStartPosition);
        event->accept();
    }
}

void TitleBar::mouseDoubleClickEvent(QMouseEvent *event)
{
    if (event->button() == Qt::LeftButton) {
        emit maximizeClicked();
    }
}