Qt实现视频监控画面分割

#include <QtWidgets> #include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); initMainWindow(); showVideoScreen(4); } MainWindow::~MainWindow() { delete ui; } void MainWindow::initMainWindow() { for (int i = 0; i < 64; i++) { QLabel *videoLabel = new QLabel; videoLabel->setObjectName(QString("video%1").arg(i+1)); videoLabel->setFocusPolicy(Qt::StrongFocus); videoLabel->setAlignment(Qt::AlignCenter); videoLabel->setStyleSheet("QLabel{background: #333333;}"); videoLabel->installEventFilter(this); m_videoLabels.append(videoLabel); } } void MainWindow::clearAllVideo() { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); for (int i = 0; i < 64; i++) { gridLayout->removeWidget(m_videoLabels[i]); m_videoLabels[i]->setVisible(false); } } void MainWindow::showVideoScreen(int screenType) { clearAllVideo(); switch (screenType) { case 1: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 1) { row++; column = 0; } } if (count == (1*1)) { break; } } } break; case 4: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 2) { row++; column = 0; } } if (count == (2 * 2)) { break; } } } break; case 6: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); gridLayout->addWidget(m_videoLabels[0], 0, 0, 2, 2); gridLayout->addWidget(m_videoLabels[1], 0, 2, 1, 1); gridLayout->addWidget(m_videoLabels[2], 1, 2, 1, 1); gridLayout->addWidget(m_videoLabels[3], 2, 2, 1, 1); gridLayout->addWidget(m_videoLabels[4], 2, 1, 1, 1); gridLayout->addWidget(m_videoLabels[5], 2, 0, 1, 1); for (int i = 0; i < 6; i++) { m_videoLabels[i]->setVisible(true); } } break; case 8: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); gridLayout->addWidget(m_videoLabels[0], 0, 0, 3, 3); gridLayout->addWidget(m_videoLabels[1], 0, 3, 1, 1); gridLayout->addWidget(m_videoLabels[2], 1, 3, 1, 1); gridLayout->addWidget(m_videoLabels[3], 2, 3, 1, 1); gridLayout->addWidget(m_videoLabels[4], 3, 3, 1, 1); gridLayout->addWidget(m_videoLabels[5], 3, 2, 1, 1); gridLayout->addWidget(m_videoLabels[6], 3, 1, 1, 1); gridLayout->addWidget(m_videoLabels[7], 3, 0, 1, 1); for (int i = 0; i < 8; i++) { m_videoLabels[i]->setVisible(true); } } break; case 9: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 3) { row++; column = 0; } } if (count == (3 * 3)) { break; } } } break; case 16: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 4) { row++; column = 0; } } if (count == (4*4)) { break; } } } break; case 25: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 5) { row++; column = 0; } } if (count == (5*5)) { break; } } } break; case 36: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 6) { row++; column = 0; } } if (count == (6*6)) { break; } } } break; case 64: { QGridLayout *gridLayout = qobject_cast<QGridLayout*>(ui->widget_video->layout()); int count = 0; int row = 0; int column = 0; for (int i = 0; i < 64; i++) { if (i >= 0) { gridLayout->addWidget(m_videoLabels[i], row, column); m_videoLabels[i]->setVisible(true); count++; column++; if (column == 8) { row++; column = 0; } } if (count == (8*8)) { break; } } } break; default: break; } } void MainWindow::on_pushButton_1_clicked() { ui->pushButton_1->setChecked(true); ui->pushButton_4->setChecked(false); ui->pushButton_6->setChecked(false); ui->pushButton_8->setChecked(false); ui->pushButton_9->setChecked(false); ui->pushButton_16->setChecked(false); ui->pushButton_25->setChecked(false); ui->pushButton_36->setChecked(false); ui->pushButton_64->setChecked(false); showVideoScreen(1); } void MainWindow::on_pushButton_4_clicked() { ui->pushButton_1->setChecked(false); ui->pushButton_4->setChecked(true); ui->pushButton_6->setChecked(false); ui->pushButton_8->setChecked(false); ui->pushButton_9->setChecked(false); ui->pushButton_16->setChecked(false); ui->pushButton_25-