Qt实现聊天界面--历史聊天信息源码

#include "widget.h" #include <QHBoxLayout> #include <QTextBrowser> #include <QToolButton> #include <QPainter> #include <QPushBUtton> #include <QDialog> #include <QScrollBar> Widget::Widget(QWidget *parent) : QWidget(parent) { ChatMessageWidget *pChatMessage = new ChatMessageWidget(this); pChatMessage->insertMessage(ChatMessageWidget::MySelf, "zhangsan:kaihuila"); pChatMessage->insertMessage(ChatMessageWidget::Other, "wangwu:haode"); QHBoxLayout *pMainLayout = new QHBoxLayout; pMainLayout->addWidget(pChatMessage); this->setLayout(pMainLayout); } Widget::~Widget() { } ChatMessageWidget::ChatMessageWidget(QWidget *parent) : QWidget(parent) { m_pScrollWidget = new QWidget(this); m_pScrollWidget->setObjectName("ChatMessageWidget_ScrollWidget"); m_pScrollWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Minimum); m_pScrollArea = new QScrollArea(this); m_pScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); m_pScrollArea->setWidget(m_pScrollWidget); m_pScrollArea->setWidgetResizable(true); QHBoxLayout *hBoxLayout = new QHBoxLayout; hBoxLayout->setMargin(0); hBoxLayout->addWidget(m_pScrollArea); this->setLayout(hBoxLayout); m_pScrollWidgetLayout = new QVBoxLayout; QVBoxLayout *pMainLayout = new QVBoxLayout; pMainLayout->setMargin(2); pMainLayout->addLayout(m_pScrollWidgetLayout); pMainLayout->addStretch(); m_pScrollWidget->setLayout(pMainLayout); m_pScrollTimer = new QTimer(this); m_pScrollTimer->setSingleShot(true); } ChatMessageWidget::~ChatMessageWidget() { } void ChatMessageWidget::insertMessage(enMessageType messageType, QString strMessText) { switch (messageType) { case MySelf: { dealMySelfMessage(strMessText); break; } case Other: { dealOtherMessage(strMessText); break; } default: break; } m_pScrollTimer->start(10); connect(m_pScrollTimer, SIGNAL(timeout()), this, SLOT(updateScrollBar())); //m_pScrollArea->verticalScrollBar()->setValue(m_pScrollArea->verticalScrollBar()->maximum()); } void ChatMessageWidget::updateScrollBar() { m_pScrollArea->verticalScrollBar()->setValue(m_pScrollArea->verticalScrollBar()->maximum()); } void ChatMessageWidget::dealMySelfMessage(QString &str) { QString strName; QString strContent; resolveNameAndContent(str, strName, strContent); CRightBubbleWidget *pMyBubble = new CRightBubbleWidget(this); pMyBubble->setMessage(strName, strContent); m_pScrollWidgetLayout->addWidget(pMyBubble); } void ChatMessageWidget::dealOtherMessage(QString &str) { QString strName; QString strContent; resolveNameAndContent(str, strName, strContent); CLeftBubbleWidget *pMyBubble = new CLeftBubbleWidget(this); pMyBubble->setMessage(strName, strContent); m_pScrollWidgetLayout->addWidget(pMyBubble); } void ChatMessageWidget::resolveNameAndContent(QString &strOrig, QString &strName, QString &strContent) { QStringList list = strOrig.split(":"); strName = list[0]; for (int i = 1; i < list.count(); ++i) { if (1 != i) { strContent.append(":"); } strContent.append(list[i]); } } CLeftBubbleWidget::CLeftBubbleWidget(QWidget *parent) : QWidget(parent) { init(); } CLeftBubbleWidget::~CLeftBubbleWidget() { } void CLeftBubbleWidget::setMessage(QString &strName, QString &strMessage) { m_pNameLabel->setText(strName); m_pContentLabel->setText(strMessage); } void CLeftBubbleWidget::init() { m_pNameLabel = new QLabel(this); m_pNameLabel->setObjectName("ChatOtherOldNameLabel"); m_pContentLabel = new QLabel(this); m_pContentLabel->setWordWrap(true); m_pContentLabel->setObjectName("ChatOtherOldMessageLabel"); //m_pContentLabel->setStyleSheet("font-size: 14px;font-family:Microsoft YaHei;border-width: 10px 7px 5px 10px;border-image: url(:/skin/Resources/otherBubble.png) 10 7 5 10 no-repeat stretch;"); QHBoxLayout *pNameLayout = new QHBoxLayout; pNameLayout->setMargin(0); pNameLayout->addWidget(m_pNameLabel); pNameLayout->addStretch(); QHBoxLayout *pContentLayout = new QHBoxLayout; pContentLayout->setMargin(0); pContentLayout->addWidget(m_pContentLabel); pContentLayout->addStretch(); QVBoxLayout *pMainLayout = new QVBoxLayout; pMainLayout->setMargin(0); pMainLayout->setSpacing(0); pMainLayout->addLayout(pNameLayout); pMainLayout->addLayout(pContentLayout); this->setLayout(pMainLayout); } CRightBubbleWidget::CRightBubbleWidget(QWidget *parent) : QWidget(parent) { init(); } CRightBubbleWidget::~CRightBubbleWidget() { } void CRightBubbleWidget::setMessage(QString &strName, QString &strMessage) { m_pNameLabel->setText(strName); m_pContentLabel->setText(strMessage); } void CRightBubbleWidget::init() { m_pNameLabel = new QLabel(this); m_pNameLabel->setObjectName("ChatMyOldNameLabel"); m_pContentLabel = new QLabel(this); m_pContentLabel->setObjectName("ChatMyOldMessageLabel"); m_pContentLabel->setWordWrap(true); m_pContentLabel->setMaximumWidth(400); //m_pContentLabel->setStyleSheet("font-size: 14px;font-family:Microsoft YaHei;border-width: 10px 10px 5px 7px;border-image: url(:/skin/Resources/myBubble.png) 10 10 5 7 no-repeat stretch;"); QHBoxLayout *pNameLayout = new QHBoxLayout; pNameLayout->setMargin(0); pNameLayout->addStretch(); pNameLayout->addWidget(m_pNameLabel); QHBoxLayout *pContentLayout = new QHBoxLayout; pContentLayout->setMargin(0); pContentLayout->addStretch(); pContentLayout->addWidget(m_pContentLabel); QVBoxLayout *pMainLayout = new QVBoxLayout; pMainLayout->setMargin(0); pMainLayout->setSpacing(0); pMainLayout->addLayout(pNameLayout); pMainLayout->addLayout(pContentLayout); this->setLayout(pMainLayout); }