阅读量:0
在Qt中编写会议室应用程序通常涉及到用户界面设计、网络通信、音频/视频处理等方面。以下是创建一个基本会议室应用程序的步骤概述：
项目设置：
使用Qt Creator创建一个新的Qt Widgets Application或Qt Quick Application项目。
用户界面设计：
设计主窗口，包含必要的布局和控件，例如视频显示窗口、音频控制、聊天窗口、参与者列表等。
音频/视频处理：
使用QCamera和QCameraViewfinder来访问和显示摄像头视频。
使用QAudioInput和QAudioOutput来处理音频输入和输出。
网络通信：
实现会议室的网络通信功能，可以使用QTcpSocket、QUdpSocket或更高级别的库如QWebSocket。
用户认证和管理：
集成用户登录和认证机制，可能需要使用数据库或远程服务器验证用户。
会议室控制：
实现会议室的控制逻辑，如创建会议室、加入会议室、主持人控制等。
数据同步：
确保所有参与者都能同步更新，如聊天消息、参与者状态等。
错误处理和用户反馈：
添加必要的错误处理和用户操作反馈机制。
测试和优化：
对应用程序进行测试，确保功能正常，优化性能和用户体验。
部署：
准备应用程序的发布，包括编译、打包和分发。
这里只能展示部分代码
#pragma execution_character_set("utf-8") #include "animationbutton1.h" #include "qpainter.h" #include "qpropertyanimation.h" #include "qdebug.h" AnimationButton1::AnimationButton1(QWidget *parent) : QWidget(parent) { enter = true; leave = false; pixWidth = 0; pixHeight = 0; oldWidth = 0; oldHeight = 0; enterAnimation = new QPropertyAnimation(this, ""); enterAnimation->setStartValue(0); enterAnimation->setEndValue(5); enterAnimation->setDuration(400); connect(enterAnimation, SIGNAL(valueChanged(QVariant)), this, SLOT(enterImageChanged(QVariant))); leaveAnimation = new QPropertyAnimation(this, ""); leaveAnimation->setStartValue(0); leaveAnimation->setEndValue(5); leaveAnimation->setDuration(400); connect(leaveAnimation, SIGNAL(valueChanged(QVariant)), this, SLOT(leaveImageChanged(QVariant))); } AnimationButton1::~AnimationButton1() { delete enterAnimation; delete leaveAnimation; } void AnimationButton1::enterEvent(QEvent *) { enter = true; leave = false; pixWidth = pixWidth - 25; pixHeight = pixHeight - 25; enterAnimation->start(); } void AnimationButton1::leaveEvent(QEvent *) { enter = false; leave = true; pixWidth = oldWidth; pixHeight = oldHeight; leaveAnimation->start(); } void AnimationButton1::paintEvent(QPaintEvent *) { if (imageName.isEmpty()) { return; } QPainter painter(this); painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing); QPixmap pix(imageName); pix = pix.scaled(targetWidth, targetHeight, Qt::KeepAspectRatio, Qt::SmoothTransformation); if (enter || leave) { int pixX = rect().center().x() - targetWidth / 2; int pixY = rect().center().y() - targetHeight / 2; QPoint point(pixX, pixY); painter.drawPixmap(point, pix); } } void AnimationButton1::enterImageChanged(QVariant index) { int i = index.toInt(); targetWidth = pixWidth + i * 5; targetHeight = pixHeight + i * 5; update(); } void AnimationButton1::leaveImageChanged(QVariant index) { int i = index.toInt(); targetWidth = pixWidth - i * 5; targetHeight = pixWidth - i * 5; update(); } QString AnimationButton1::getImageName() const { return this->imageName; } QSize AnimationButton1::sizeHint() const { return QSize(95, 95); } QSize AnimationButton1::minimumSizeHint() const { return QSize(10, 10); } void AnimationButton1::setImageName(const QString &imageName) { if (this->imageName != imageName) { this->imageName = imageName; QPixmap pix(imageName); pixWidth = pix.width(); pixHeight = pix.height(); oldWidth = pixWidth; oldHeight = pixHeight; targetWidth = pixWidth - 25; targetHeight = pixHeight - 25; update(); } } #include "widgetKeyBoard.h" #include <QApplication> #include <QDesktopWidget> #include <QLayout> #include <QScreen> #include <QKeyEvent> #include <QDir> #include <QDebug> #define ZOOMED_WIDGET_STYLESHEET "border-radius:8px;font:bold 16px;color:white;" widgetKeyBoard::widgetKeyBoard(QWidget *parent) : QWidget(parent), m_parent(parent) { m_created = false; keyboardGroup = new QGroupBox(this); keyboardGroup->setTitle(""); createKeyboard(); } QKeyPushButton * widgetKeyBoard::createNewKey(QString keyValue) { QKeyPushButton *tmp = new QKeyPushButton(this); int width = 0, height = 0; tmp->setText(keyValue); width = KEY_WIDTH_EMBEDDED; height = KEY_HEIGHT_EMBEDDED; tmp->setObjectName(keyValue); tmp->setMinimumSize(width, height); tmp->setMaximumSize(width, height); tmp->setVisible(true); return (tmp); } void widgetKeyBoard::upperLowerSwitch() { //line 1 is digital. no need to convert to upper case //iterate vertical layout item for (int i = 1; i < layout()->count(); ++i) { QLayoutItem *layoutItem = layout()->itemAt(i); QLayout *hlayout = layoutItem->layout(); iterate horizon layout item for (int j = 0; j < hlayout->count(); ++j) { QLayoutItem *hlayoutItem = hlayout->itemAt(j); QKeyPushButton *key = (QKeyPushButton *)hlayoutItem->widget(); if (IS_CAPS(key->text()) || IS_DEL(key->text())) continue; if (mIsUpper) key->setText(key->text().toLower()); else key->setText(key->text().toUpper()); } } mIsUpper = !mIsUpper; } void widgetKeyBoard::resizeEvent(QResizeEvent *event) { keyboardGroup->resize(this->width(),this->height()); } //create keyboard void widgetKeyBoard::createKeyboard(void) { QKeyPushButton *tmp = NULL; QVBoxLayout *tmpVLayout = new QVBoxLayout; QHBoxLayout *tmpLayout = new QHBoxLayout; if (m_created == true) return; m_created = true; for (short i = '1'; i <= '9'; i++) { tmpLayout->addWidget(createNewKey(QChar(i))); } tmpLayout->addWidget(createNewKey(tr("0"))); tmpVLayout->insertLayout(0, tmpLayout); tmpLayout = new QHBoxLayout; tmpLayout->addWidget(createNewKey(tr("Q"))); tmpLayout->addWidget(createNewKey(tr("W"))); tmpLayout->addWidget(createNewKey(tr("E"))); tmpLayout->addWidget(createNewKey(tr("R"))); tmpLayout->addWidget(createNewKey(tr("T"))); tmpLayout->addWidget(createNewKey(tr("Y"))); tmpLayout->addWidget(createNewKey(tr("U"))); tmpLayout->addWidget(createNewKey(tr("I"))); tmpLayout->addWidget(createNewKey(tr("O"))); tmpLayout->addWidget(createNewKey(tr("P"))); tmpVLayout->insertLayout(1, tmpLayout); tmpLayout = new QHBoxLayout; tmpLayout->addWidget(createNewKey(tr("A"))); tmpLayout->addWidget(createNewKey(tr("S"))); tmpLayout->addWidget(createNewKey(tr("D"))); tmpLayout->addWidget(createNewKey(tr("F"))); tmpLayout->addWidget(createNewKey(tr("G"))); tmpLayout->addWidget(createNewKey(tr("H"))); tmpLayout->addWidget(createNewKey(tr("J"))); tmpLayout->addWidget(createNewKey(tr("K"))); tmpLayout->addWidget(createNewKey(tr("L"))); tmpVLayout->insertLayout(2, tmpLayout); tmpLayout = new QHBoxLayout; tmp = createNewKey(KEY_CAPS); tmp->setMaximumWidth(tmp->maximumWidth() * 2 + 5); tmp->setMinimumWidth(tmp->minimumWidth() * 2 + 5); tmpLayout->addWidget(tmp); tmpLayout->addWidget(createNewKey(tr("Z"))); tmpLayout->addWidget(createNewKey(tr("X"))); tmpLayout->addWidget(createNewKey(tr("C"))); tmpLayout->addWidget(createNewKey(tr("V"))); tmpLayout->addWidget(createNewKey(tr("B"))); tmpLayout->addWidget(createNewKey(tr("N"))); tmpLayout->addWidget(createNewKey(tr("M"))); tmp = createNewKey(KEY_DEL); tmp->setMaximumWidth(tmp->maximumWidth() * 2); tmp->setMinimumWidth(tmp->minimumWidth() * 2); tmpLayout->addWidget(tmp); tmpVLayout->insertLayout(3, tmpLayout); this->setLayout(tmpVLayout); this->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed); } 