#include "widget.h"
#include "ui_widget.h"
#include "QWindow"
#include <QDebug>
#include <QFile>
#include <QMouseEvent>
#include <QStyle>

Widget::Widget(QWidget *parent)
 : MWidgetBase(parent)
 , ui(new Ui::Widget)
{
 ui->setupUi(this);

 init();
 connectSlot();
}

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

void Widget::init()
{
 loadStyle();
 this->setWindowTitle(QString("QMPlayer - V%1").arg(APP_VERSION));
 this->setTitleBar(ui->titleBar->getBackground()); // 设置标题栏
 ui->videoWidget->setMouseTracking(true); // 激活鼠标移动事件

 ui->videoWidget->installEventFilter(this);

 m_paSlider = new QPropertyAnimation(ui->slider_video, "size");
 m_paControlBar = new QPropertyAnimation(ui->controlBar, "size");
 m_paSidebar = new QPropertyAnimation(ui->sidebar, "pos");
 m_paSlider->setDuration(500);
 m_paControlBar->setDuration(500);
 m_paSidebar->setDuration(500);
}

void Widget::connectSlot()
{
 connect(this, &MWidgetBase::windowStateChanged, ui->titleBar, &TitleBar::on_windowStateChanged);
}

/**
 * @brief 加载样式表
 */
void Widget::loadStyle()
{
 QFile file(":/Style/main.css");
 if (file.open(QFile::ReadOnly))
 {
 //用QTextStream读取样式文件不用区分文件编码 带bom也行
 QStringList list;
 QTextStream in(&file);
 while (!in.atEnd()) {
 QString line;
 in >> line;
 list << line;
 }

 file.close();
 QString qss = list.join("\n");
 this->setStyleSheet("");
 qApp->setStyleSheet(qss);
 }
}

/**
 * @brief 隐藏Widget设置标题文本功能,添加设置标题栏文本功能
 * @param title
 */
void Widget::setWindowTitle(const QString &title)
{
 QWidget::setWindowTitle(title);
 ui->titleBar->setWindowTitle(title);
}

/**
 * @brief 界面动态布局
 */
void Widget::windowLayout()
{
 // 设置组件大小
 int l_widget = ui->videoWidget->width() * 3 / 5;
 QSize size = ui->controlBar->size();
 size.setWidth(l_widget);
 ui->controlBar->resize(size); // 设置控制栏大小
 size.setHeight(ui->slider_video->height());
 ui->slider_video->resize(size); // 设置进度条大小

 // 设置组件位置
 int x = (ui->videoWidget->width() - ui->controlBar->width()) / 2;
 int y = ui->videoWidget->height() - ui->controlBar->height() - 20;
 ui->controlBar->move(x, y);
 int sliderY = y - ui->slider_video->height() - 5;
 ui->slider_video->move(x, sliderY);

 // 侧边栏
 size = ui->sidebar->size();
 size.setHeight(sliderY - 20);
 ui->sidebar->resize(size);
 ui->sidebar->move(0, 0);
 m_visible = true;
}

void Widget::dynamicShowNormal()
{
 if(ui->controlBar->width() > 0)
 {
 dynamicHide();
 }
 else
 {
 dynamicShow();
 }
}


void Widget::dynamicHide()
{
 if(!m_visible)
 {
 return;
 }

 // 隐藏进度条
 m_paSlider->setStartValue(ui->slider_video->size());
 m_paSlider->setEndValue(QSize(0, ui->slider_video->height()));
 m_paSlider->setEasingCurve(QEasingCurve::OutQuad);
 m_paSlider->start();

 // 隐藏控制栏
 m_paControlBar->setStartValue(ui->controlBar->size());
 m_paControlBar->setEndValue(QSize(0, ui->controlBar->height()));
 m_paControlBar->setEasingCurve(QEasingCurve::OutQuad);
 m_paControlBar->start();

 // 隐藏侧边栏
 m_paSidebar->setStartValue(QPoint(0, 0));
 m_paSidebar->setEndValue(QPoint(-ui->sidebar->width(), 0));
 m_paSidebar->setEasingCurve(QEasingCurve::OutQuad);
 m_paSidebar->start();

 m_visible = false;
}

void Widget::dynamicShow()
{
 if(m_visible)
 {
 return;
 }

 int l_widget = ui->videoWidget->width() * 3 / 5;
 m_paSlider->setStartValue(QSize(0, ui->slider_video->height()));
 m_paSlider->setEndValue(QSize(l_widget, ui->slider_video->height()));
 m_paSlider->setEasingCurve(QEasingCurve::OutQuad);
 m_paSlider->start();

 m_paControlBar->setStartValue(QSize(0, ui->controlBar->height()));
 m_paControlBar->setEndValue(QSize(l_widget, ui->controlBar->height()));
 m_paControlBar->setEasingCurve(QEasingCurve::OutQuad);
 m_paControlBar->start();

 m_paSidebar->setStartValue(QPoint(-ui->sidebar->width(), 0));
 m_paSidebar->setEndValue(QPoint(0, 0));
 m_paSidebar->setEasingCurve(QEasingCurve::OutQuad);
 m_paSidebar->start();

 m_visible = true;
}


/**
 * @brief 窗口显示事件
 * @param event
 */
void Widget::showEvent(QShowEvent *event)
{
 MWidgetBase::showEvent(event);
 windowLayout();
}

/**
 * @brief 窗口大小改变事件
 * @param event
 */
void Widget::resizeEvent(QResizeEvent *event)
{
 MWidgetBase::resizeEvent(event);
 windowLayout();
}

/**
 * @brief 事件过滤器
 * @param watched
 * @param event
 * @return
 */
bool Widget::eventFilter(QObject *watched, QEvent *event)
{
 if(watched == ui->videoWidget)
 {
 videoWidgetEvent(event);
 }

 return MWidgetBase::eventFilter(watched, event);
}

/**
 * @brief 处理窗口中的视频显示界面事件
 * @param event
 */
void Widget::videoWidgetEvent(QEvent *event)
{
 switch (event->type())
 {
 case QEvent::MouseButtonDblClick:
 {
 QMouseEvent* e = static_cast<QMouseEvent*>(event);
 switch (e->button())
 {
 case Qt::LeftButton: // 左键双击全屏显示、还原
 {
 if(this->isFullScreen())
 {
 ui->titleBar->show();
 this->showNormal();
 dynamicShow();
 }
 else
 {
 ui->titleBar->hide();
 this->showFullScreen();
 dynamicHide();
 }
 break;
 }
 case Qt::RightButton: // 右键双击显示隐藏控制栏、侧边栏、进度条
 {
 dynamicShowNormal();
 break;
 }
 default:break;
 }

 break;
 }
 case QEvent::MouseMove:
 {
 break;
 }
 default:break;
 }
}