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Albert(web2017)/Demo_MessageChat

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mainwindow.cpp 4.24 KB
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDateTime>
#include <QDebug>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
resize(600, 800);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
QString msg = ui->textEdit->toPlainText();
ui->textEdit->setText("");
QString time = QString::number(QDateTime::currentDateTime().toTime_t()); //时间戳
bool isSending = true; // 发送中
qDebug()<<"addMessage" << msg << time << ui->listWidget->count();
if(ui->listWidget->count()%2) {
if(isSending) {
dealMessageTime(time);
QNChatMessage* messageW = new QNChatMessage(ui->listWidget->parentWidget());
QListWidgetItem* item = new QListWidgetItem(ui->listWidget);
dealMessage(messageW, item, msg, time, QNChatMessage::User_Me);
} else {
bool isOver = true;
for(int i = ui->listWidget->count() - 1; i > 0; i--) {
QNChatMessage* messageW = (QNChatMessage*)ui->listWidget->itemWidget(ui->listWidget->item(i));
if(messageW->text() == msg) {
isOver = false;
messageW->setTextSuccess();
}
}
if(isOver) {
dealMessageTime(time);
QNChatMessage* messageW = new QNChatMessage(ui->listWidget->parentWidget());
QListWidgetItem* item = new QListWidgetItem(ui->listWidget);
dealMessage(messageW, item, msg, time, QNChatMessage::User_Me);
messageW->setTextSuccess();
}
}
} else {
if(msg != "") {
dealMessageTime(time);
QNChatMessage* messageW = new QNChatMessage(ui->listWidget->parentWidget());
QListWidgetItem* item = new QListWidgetItem(ui->listWidget);
dealMessage(messageW, item, msg, time, QNChatMessage::User_She);
}
}
ui->listWidget->setCurrentRow(ui->listWidget->count()-1);
}
void MainWindow::dealMessage(QNChatMessage *messageW, QListWidgetItem *item, QString text, QString time, QNChatMessage::User_Type type)
{
messageW->setFixedWidth(this->width());
QSize size = messageW->fontRect(text);
item->setSizeHint(size);
messageW->setText(text, time, size, type);
ui->listWidget->setItemWidget(item, messageW);
}
void MainWindow::dealMessageTime(QString curMsgTime)
{
bool isShowTime = false;
if(ui->listWidget->count() > 0) {
QListWidgetItem* lastItem = ui->listWidget->item(ui->listWidget->count() - 1);
QNChatMessage* messageW = (QNChatMessage*)ui->listWidget->itemWidget(lastItem);
int lastTime = messageW->time().toInt();
int curTime = curMsgTime.toInt();
qDebug() << "curTime lastTime:" << curTime - lastTime;
isShowTime = ((curTime - lastTime) > 60); // 两个消息相差一分钟
// isShowTime = true;
} else {
isShowTime = true;
}
if(isShowTime) {
QNChatMessage* messageTime = new QNChatMessage(ui->listWidget->parentWidget());
QListWidgetItem* itemTime = new QListWidgetItem(ui->listWidget);
QSize size = QSize(this->width(), 40);
messageTime->resize(size);
itemTime->setSizeHint(size);
messageTime->setText(curMsgTime, curMsgTime, size, QNChatMessage::User_Time);
ui->listWidget->setItemWidget(itemTime, messageTime);
}
}
void MainWindow::resizeEvent(QResizeEvent *event)
{
Q_UNUSED(event);
ui->textEdit->resize(this->width() - 20, ui->widget->height() - 20);
ui->textEdit->move(10, 10);
ui->pushButton->move(ui->textEdit->width()+ui->textEdit->x() - ui->pushButton->width() - 10,
ui->textEdit->height()+ui->textEdit->y() - ui->pushButton->height() - 10);
for(int i = 0; i < ui->listWidget->count(); i++) {
QNChatMessage* messageW = (QNChatMessage*)ui->listWidget->itemWidget(ui->listWidget->item(i));
QListWidgetItem* item = ui->listWidget->item(i);
dealMessage(messageW, item, messageW->text(), messageW->time(), messageW->userType());
}
}
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