#include "DisplayWidget.h"

#include <QApplication>
#include <QPalette>
#include <QImageReader>
#include <QPainter>
#include <QResizeEvent>
#include <QScreen>

#include "PaperWidget.h"

#include "ui_DisplayWidget.h"

DisplayWidget::DisplayWidget(const Widget& widget, QWidget *parent) :
    QWidget(parent),
    ui(new Ui::DisplayWidget),
    m_widget(widget)
{
    ui->setupUi(this);
    setWindowFlags(Qt::FramelessWindowHint);

  //  resize(widget.width, widget.height);

    setAutoFillBackground(true);
    const QString pxPath = QApplication::applicationDirPath() + "/PhotoDisplay/" + m_widget.bg;
    int m1 = QImageReader::allocationLimit();
    QImageReader::setAllocationLimit(250);
    int m2 = QImageReader::allocationLimit();
    m_bg.load(pxPath);
    /*QPixmap px(pxPath);
    QPalette pal = palette();
    pal.setBrush(QPalette::Window, QBrush(px.scaled(size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation)));
    setPalette(pal);*/

    m_paperWidget = new PaperWidget(this);
    m_paperWidget->resize(widget.width, widget.height);

    m_animation = new QPropertyAnimation(m_paperWidget, "pos", this);
    m_animation->setDuration(m_widget.duration * 1000);

    m_animation->setEasingCurve(QEasingCurve::InOutQuad);

   

  //  SetPaper("D:/Project/culturered/culturered/Client/PhotoPrintServer/static/uploads/1.jpg", "test");
    QRect rect(widget.x, widget.y, widget.width, widget.height);
    QScreen* sc = QApplication::screenAt(rect.center());
    connect(screen(), &QScreen::availableGeometryChanged, this, &DisplayWidget::OnGeometryChanged);
    
}

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

void DisplayWidget::SizeChange() {
    QPoint start;
    if (0 == m_widget.anim) {
        start = QPoint(-width(), 0);
    } else if (1 == m_widget.anim) {
        start = QPoint(width(), 0);
    } else if (2 == m_widget.anim) {
        start = QPoint(0, -height());
    } else {
        start = QPoint(0, height());
    }
    m_paperWidget->move(start);
    m_paperWidget->hide();

  //  SetPaper("D:/Project/culturered/culturered/Client/PhotoPrintServer/static/uploads/1.jpg", "test");
    QRect rect(widget.x, widget.y, widget.width, widget.height);
    QScreen* sc = QApplication::screenAt(rect.center());
    connect(screen(), &QScreen::availableGeometryChanged, this, &DisplayWidget::OnGeometryChanged);
    
}

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

void DisplayWidget::SetPaper(const QString& path, const QString& url, const QString& tag) {
    qDebug() << __FUNCTION__ << "tag:" << tag << " widget tag:" << m_widget.tag;
    if (tag != m_widget.tag) {
        return;
    }

    QPoint start, end;
    if (0 == m_widget.anim) {
        start = QPoint(-width(), 0);
        end = QPoint(0, 0);
    } else if (1 == m_widget.anim) {
        start = QPoint(width(), 0);
        end = QPoint(0, 0);
    } else if (2 == m_widget.anim) {
        start = QPoint(0, -height());
        end = QPoint(0, 0);
    } else {
        start = QPoint(0, height());
        end = QPoint(0, 0);
    }

    qDebug() << __FUNCTION__ << "start:" << start << " end:" << end;
    m_animation->setStartValue(start); // 起始位置
    m_animation->setEndValue(end); // 结束位置
    m_animation->stop();
    m_animation->start();
    m_paperWidget->SetBackground(path, url);
    m_paperWidget->show();
    
}

void DisplayWidget::paintEvent(QPaintEvent* e) {
    QWidget::paintEvent(e);
    //if (m_bg.isNull()) {
    //    return;
    //}

    QPainter painter(this);

    const QRect rt = rect();
    qDebug() << rt << " " << m_widget.tag;
    painter.drawImage(rt, m_bg, m_bg.rect());
}

void DisplayWidget::resizeEvent(QResizeEvent* event) {
    m_paperWidget->setFixedSize(event->size());
}

void DisplayWidget::OnGeometryChanged(const QRect& geometry) {
    qDebug() << __FUNCTION__ << geometry << "screen name:" << reinterpret_cast<QScreen*>(sender())->name();
    emit ScreenGeometryChanged();
    //resize(geometry.width(), geometry.height());
}