Qt编写视频监控画面分割界面

#include "frmmain.h" #include "ui_frmmain.h" #pragma execution_character_set("utf-8") frmMain::frmMain(QWidget *parent) : QWidget(parent), ui(new Ui::frmMain) { ui->setupUi(this); this->initForm(); this->initMenu(); this->show_video_all(); QTimer::singleShot(1000, this, SLOT(play_video_all())); } frmMain::~frmMain() { delete ui; } bool frmMain::eventFilter(QObject *watched, QEvent *event) { if (event->type() == QEvent::MouseButtonDblClick) { QLabel *widget = (QLabel *) watched; if (!videoMax) { videoMax = true; hide_video_all(); ui->gridLayout->addWidget(widget, 0, 0); widget->setVisible(true); } else { videoMax = false; show_video_all(); } } else if (event->type() == QEvent::MouseButtonPress) { if (qApp->mouseButtons() == Qt::RightButton) { videoMenu->exec(QCursor::pos()); } } return QWidget::eventFilter(watched, event); } void frmMain::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:#000000;}"); qss.append("QLabel:focus{border:2px solid #00BB9E;background:#555555;}"); ui->frame->setStyleSheet(qss.join("")); videoMax = false; videoCount = 16; 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 frmMain::initMenu() { videoMenu = new QMenu(this); 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())); videoMenu->addAction("切换到16画面", this, SLOT(show_video_16())); } void frmMain::play_video_all() { } void frmMain::snapshot_video_one() { } void frmMain::snapshot_video_all() { } void frmMain::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_16") { change_video_16(0); } } void frmMain::show_video_4() { videoMax = false; QString videoType; int index = 0; QAction *action = (QAction *)sender(); QString name = action->text(); 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; change_video_4(index); } } void frmMain::show_video_6() { videoMax = false; QString videoType; int index = 0; QAction *action = (QAction *)sender(); QString name = action->text(); 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; change_video_6(index); } } void frmMain::show_video_8() { videoMax = false; QString videoType; int index = 0; QAction *action = (QAction *)sender(); QString name = action->text(); 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; change_video_8(index); } } void frmMain::show_video_9() { videoMax = false; QString videoType; int index = 0; QAction *action = (QAction *)sender(); QString name = action->text(); 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; change_video_9(index); } } void frmMain::show_video_16() { videoMax = false; QString videoType; int index = 0; videoType = "1_16"; if (this->videoType != videoType) { this->videoType = videoType; change_video_16(index); } } void frmMain::hide_video_all() { for (int i = 0; i < videoCount; i++) { ui->gridLayout->removeWidget(widgets.at(i)); widgets.at(i)->setVisible(false); } } void frmMain::change_video(int index, int flag) { int count = 0; int row = 0; int column = 0; for (int i = 0; i < videoCount; i++) { if (i >= index) { ui->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 frmMain::change_video_4(int index) { hide_video_all(); change_video(index, 2); } void frmMain::change_video_6(int index) { hide_video_all(); if (index == 0) { ui->gridLayout->addWidget(widgets.at(0), 0, 0, 2, 2); ui->gridLayout->addWidget(widgets.at(1), 0, 2, 1, 1); ui->gridLayout->addWidget(widgets.at(2), 1,