text: ﻿#pragma execution_character_set("utf-8")
  
  #include "videopanel.h"
  #include "qevent.h"
  #include "qmenu.h"
  #include "qlayout.h"
  #include "qlabel.h"
  #include "qtimer.h"
  #include "qdebug.h"
  
  VideoPanel::VideoPanel(QWidget *parent) : QWidget(parent)
  {
      this->initControl();
      this->initForm();
      this->initMenu();
      this->show_video_all();
      QTimer::singleShot(1000, this, SLOT(play_video_all()));
  }
  
  bool VideoPanel::eventFilter(QObject *watched, QEvent *event)
  {
      if (event->type() == QEvent::MouseButtonDblClick) {
          QLabel *widget = (QLabel *) watched;
          if (!videoMax) {
              videoMax = true;
              hide_video_all();
              gridLayout->addWidget(widget, 0, 0);
              widget->setVisible(true);
          } else {
              videoMax = false;
              show_video_all();
          }
  
          widget->setFocus();
      } else if (event->type() == QEvent::MouseButtonPress) {
          QMouseEvent *mouseEvent = (QMouseEvent *)event;
          if (mouseEvent->button() == Qt::RightButton) {
              videoMenu->exec(QCursor::pos());
          }
      }
  
      return QWidget::eventFilter(watched, event);
  }
  
  QSize VideoPanel::sizeHint() const
  {
      return QSize(800, 600);
  }
  
  QSize VideoPanel::minimumSizeHint() const
  {
      return QSize(80, 60);
  }
  
  void VideoPanel::initControl()
  {
      gridLayout = new QGridLayout;
      gridLayout->setSpacing(1);
      gridLayout->setContentsMargins(0, 0, 0, 0);
      gridLayout->setObjectName("gridLayout");
      this->setLayout(gridLayout);
  }
  
  void VideoPanel::initForm()
  {
      //设置样式表
      QStringList qss;
      qss.append("QFrame{border:2px solid #000000;}");
      qss.append("QLabel{font:75 25px;color:#F0F0F0;border:2px solid #AAAAAA;background:#303030;}");
      qss.append("QLabel:focus{border:2px solid #00BB9E;background:#555555;}");
      this->setStyleSheet(qss.join(""));
  
      videoMax = false;
      videoCount = 64;
      videoType = "1_16";
  
      for (int i = 0; i < videoCount; i++) {
          QLabel *widget = new QLabel;
          widget->setObjectName(QString("video%1").arg(i + 1));
          widget->installEventFilter(this);
          widget->setFocusPolicy(Qt::StrongFocus);
          widget->setAlignment(Qt::AlignCenter);
  
          //二选一可以选择显示文字,也可以选择显示背景图片
          widget->setText(QString("通道 %1").arg(i + 1));
          //widget->setPixmap(QPixmap(":/bg_novideo.png"));
          widgets.append(widget);
      }
  }
  
  void VideoPanel::initMenu()
  {
      videoMenu = new QMenu(this);
  
      actionFull = new QAction("切换全屏模式", videoMenu);
      connect(actionFull, SIGNAL(triggered(bool)), this, SLOT(full()));
      actionPoll = new QAction("启动轮询视频", videoMenu);
      connect(actionPoll, SIGNAL(triggered(bool)), this, SLOT(poll()));
  
      videoMenu->addAction(actionFull);
      videoMenu->addAction(actionPoll);
      videoMenu->addSeparator();
  
      videoMenu->addAction("截图当前视频", this, SLOT(snapshot_video_one()));
      videoMenu->addAction("截图所有视频", this, SLOT(snapshot_video_all()));
      videoMenu->addSeparator();
  
      QMenu *menu4 = videoMenu->addMenu("切换到4画面");
      menu4->addAction("通道1-通道4", this, SLOT(show_video_4()));
      menu4->addAction("通道5-通道8", this, SLOT(show_video_4()));
      menu4->addAction("通道9-通道12", this, SLOT(show_video_4()));
      menu4->addAction("通道13-通道16", this, SLOT(show_video_4()));
  
      QMenu *menu6 = videoMenu->addMenu("切换到6画面");
      menu6->addAction("通道1-通道6", this, SLOT(show_video_6()));
      menu6->addAction("通道6-通道11", this, SLOT(show_video_6()));
      menu6->addAction("通道11-通道16", this, SLOT(show_video_6()));
  
      QMenu *menu8 = videoMenu->addMenu("切换到8画面");
      menu8->addAction("通道1-通道8", this, SLOT(show_video_8()));
      menu8->addAction("通道9-通道16", this, SLOT(show_video_8()));
  
      QMenu *menu9 = videoMenu->addMenu("切换到9画面");
      menu9->addAction("通道1-通道9", this, SLOT(show_video_9()));
      menu9->addAction("通道8-通道16", this, SLOT(show_video_9()));
  
      QMenu *menu13 = videoMenu->addMenu("切换到13画面");
      menu13->addAction("通道1-通道13", this, SLOT(show_video_13()));
      menu13->addAction("通道4-通道16", this, SLOT(show_video_13()));
  
      videoMenu->addAction("切换到16画面", this, SLOT(show_video_16()));
      videoMenu->addAction("切换到25画面", this, SLOT(show_video_25()));
      videoMenu->addAction("切换到36画面", this, SLOT(show_video_36()));
      videoMenu->addAction("切换到64画面", this, SLOT(show_video_64()));
  }
  
  void VideoPanel::full()
  {
      if (actionFull->text() == "切换全屏模式") {
          emit fullScreen(true);
          actionFull->setText("切换正常模式");
      } else {
          emit fullScreen(false);
          actionFull->setText("切换全屏模式");
      }
  
      //执行全屏处理
  }
  
  void VideoPanel::poll()
  {
      if (actionPoll->text() == "启动轮询视频") {
          actionPoll->setText("停止轮询视频");
      } else {
          actionPoll->setText("启动轮询视频");
      }
  
      //执行轮询处理
  }
  
  void VideoPanel::play_video_all()
  {
  
  }
  
  void VideoPanel::snapshot_video_one()
  {
  
  }
  
  void VideoPanel::snapshot_video_all()
  {
  
  }
  
  void VideoPanel::show_video_all()
  {
      if (videoType == "1_4") {
          change_video_4(0);
      } else if (videoType == "5_8") {
          change_video_4(4);
      } else if (videoType == "9_12") {
          change_video_4(8);
      } else if (videoType == "13_16") {
          change_video_4(12);
      } else if (videoType == "1_6") {
          change_video_6(0);
      } else if (videoType == "6_11") {
          change_video_6(5);
      } else if (videoType == "11_16") {
          change_video_6(10);
      } else if (videoType == "1_8") {
          change_video_8(0);
      } else if (videoType == "9_16") {
          change_video_8(8);
      } else if (videoType == "1_9") {
          change_video_9(0);
      } else if (videoType == "8_16") {
          change_video_9(7);
      } else if (videoType == "1_13") {
          change_video_13(0);
      } else if (videoType == "4_16") {
          change_video_13(3);
      } else if (videoType == "1_16") {
          change_video_16(0);
      } else if (videoType == "1_25") {
          change_video_25(0);
      } else if (videoType == "1_36") {
          change_video_36(0);
      } else if (videoType == "1_64") {
          change_video_64(0);
      }
  }
  
  void VideoPanel::show_video_4()
  {
      QAction *action = (QAction *)sender();
      QString name = action->text();
  
      int index = 0;
      QString videoType;
      if (name == "通道1-通道4") {
          index = 0;
          videoType = "1_4";
      } else if (name == "通道5-通道8") {
          index = 4;
          videoType = "5_8";
      } else if (name == "通道9-通道12") {
          index = 8;
          videoType = "9_12";
      } else if (name == "通道13-通道16") {
          index = 12;
          videoType = "13_16";
      }
  
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_4(index);
      }
  }
  
  void VideoPanel::show_video_6()
  {
      QAction *action = (QAction *)sender();
      QString name = action->text();
  
      int index = 0;
      QString videoType;
      if (name == "通道1-通道6") {
          index = 0;
          videoType = "1_6";
      } else if (name == "通道6-通道11") {
          index = 5;
          videoType = "6_11";
      } else if (name == "通道11-通道16") {
          index = 10;
          videoType = "11_16";
      }
  
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_6(index);
      }
  }
  
  void VideoPanel::show_video_8()
  {
      QAction *action = (QAction *)sender();
      QString name = action->text();
  
      int index = 0;
      QString videoType;
      if (name == "通道1-通道8") {
          index = 0;
          videoType = "1_8";
      } else if (name == "通道9-通道16") {
          index = 8;
          videoType = "9_16";
      }
  
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_8(index);
      }
  }
  
  void VideoPanel::show_video_9()
  {
      QAction *action = (QAction *)sender();
      QString name = action->text();
  
      int index = 0;
      QString videoType;
      if (name == "通道1-通道9") {
          index = 0;
          videoType = "1_9";
      } else if (name == "通道8-通道16") {
          index = 7;
          videoType = "8_16";
      }
  
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_9(index);
      }
  }
  
  void VideoPanel::show_video_13()
  {
      QAction *action = (QAction *)sender();
      QString name = action->text();
  
      int index = 0;
      QString videoType;
      if (name == "通道1-通道13") {
          index = 0;
          videoType = "1_13";
      } else if (name == "通道4-通道16") {
          index = 3;
          videoType = "4_16";
      }
  
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_13(index);
      }
  }
  
  void VideoPanel::show_video_16()
  {
      int index = 0;
      QString videoType = "1_16";
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_16(index);
      }
  }
  
  void VideoPanel::show_video_25()
  {
      int index = 0;
      QString videoType = "1_25";
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_25(index);
      }
  }
  
  void VideoPanel::show_video_36()
  {
      int index = 0;
      QString videoType = "1_36";
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_36(index);
      }
  }
  
  void VideoPanel::show_video_64()
  {
      int index = 0;
      QString videoType = "1_64";
      if (this->videoType != videoType) {
          this->videoType = videoType;
          this->videoMax = false;
          change_video_64(index);
      }
  }
  
  void VideoPanel::hide_video_all()
  {
      for (int i = 0; i < videoCount; i++) {
          gridLayout->removeWidget(widgets.at(i));
          widgets.at(i)->setVisible(false);
      }
  }
  
  void VideoPanel::change_video(int index, int flag)
  {
      int count = 0;
      int row = 0;
      int column = 0;
  
      //行列数一致的比如 2*2 3*4 4*4 5*5 等可以直接套用通用的公式
      //按照这个函数还可以非常容易的拓展出 10*10 16*16=256 通道界面
      for (int i = 0; i < videoCount; i++) {
          if (i >= index) {
              gridLayout->addWidget(widgets.at(i), row, column);
              widgets.at(i)->setVisible(true);
  
              count++;
              column++;
              if (column == flag) {
                  row++;
                  column = 0;
              }
          }
  
          if (count == (flag * flag)) {
              break;
          }
      }
  }
  
  void VideoPanel::change_video_4(int index)
  {
      hide_video_all();
      change_video(index, 2);
  }
  
  void VideoPanel::change_video_6(const QList<int> &indexs)
  {
      gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, 2, 2);
      gridLayout->addWidget(widgets.at(indexs.at(1)), 0, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(2)), 1, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(3)), 2, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(4)), 2, 1, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(5)), 2, 0, 1, 1);
  
      for (int i = indexs.first(); i <= indexs.last(); i++) {
          widgets.at(i)->setVisible(true);
      }
  }
  
  void VideoPanel::change_video_6(int index)
  {
      hide_video_all();
      if (index == 0) {
          QList<int> indexs;
          indexs << 0 << 1 << 2 << 3 << 4 << 5;
          change_video_6(indexs);
      } else if (index == 5) {
          QList<int> indexs;
          indexs << 5 << 6 << 7 << 8 << 9 << 10;
          change_video_6(indexs);
      } else if (index == 10) {
          QList<int> indexs;
          indexs << 10 << 11 << 12 << 13 << 14 << 15;
          change_video_6(indexs);
      }
  }
  
  void VideoPanel::change_video_8(const QList<int> &indexs)
  {
      gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, 3, 3);
      gridLayout->addWidget(widgets.at(indexs.at(1)), 0, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(2)), 1, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(3)), 2, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(4)), 3, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(5)), 3, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(6)), 3, 1, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(7)), 3, 0, 1, 1);
  
      for (int i = indexs.first(); i <= indexs.last(); i++) {
          widgets.at(i)->setVisible(true);
      }
  }
  
  void VideoPanel::change_video_8(int index)
  {
      hide_video_all();
      if (index == 0) {
          QList<int> indexs;
          indexs << 0 << 1 << 2 << 3 << 4 << 5 << 6 << 7;
          change_video_8(indexs);
      } else if (index == 8) {
          QList<int> indexs;
          indexs << 8 << 9 << 10 << 11 << 12 << 13 << 14 << 15;
          change_video_8(indexs);
      }
  }
  
  void VideoPanel::change_video_9(int index)
  {
      hide_video_all();
      change_video(index, 3);
  }
  
  void VideoPanel::change_video_13(const QList<int> &indexs)
  {
      gridLayout->addWidget(widgets.at(indexs.at(0)), 0, 0, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(1)), 0, 1, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(2)), 0, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(3)), 0, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(4)), 1, 0, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(5)), 2, 0, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(6)), 1, 1, 2, 2);
      gridLayout->addWidget(widgets.at(indexs.at(7)), 1, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(8)), 2, 3, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(9)), 3, 0, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(10)), 3, 1, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(11)), 3, 2, 1, 1);
      gridLayout->addWidget(widgets.at(indexs.at(12)), 3, 3, 1, 1);
  
      for (int i = indexs.first(); i <= indexs.last(); i++) {
          widgets.at(i)->setVisible(true);
      }
  }
  
  void VideoPanel::change_video_13(int index)
  {
      hide_video_all();
      if (index == 0) {
          QList<int> indexs;
          indexs << 0 << 1 << 2 << 3 << 4 << 5 << 6 << 7 << 8 << 9 << 10 << 11 << 12;
          change_video_13(indexs);
      } else if (index == 3) {
          QList<int> indexs;
          indexs << 3 << 4 << 5 << 6 << 7 << 8 << 9 << 10 << 11 << 12 << 13 << 14 << 15;
          change_video_13(indexs);
      }
  }
  
  void VideoPanel::change_video_16(int index)
  {
      hide_video_all();
      change_video(index, 4);
  }
  
  void VideoPanel::change_video_25(int index)
  {
      hide_video_all();
      change_video(index, 5);
  }
  
  void VideoPanel::change_video_36(int index)
  {
      hide_video_all();
      change_video(index, 6);
  }
  
  void VideoPanel::change_video_64(int index)
  {
      hide_video_all();
      change_video(index, 8);
  }
  