e686a13b7b
Task-number: QTBUG-106893 Change-Id: Id0f558362108fedececb9eede36becc04ff4e307 Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtWidgets>
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#include "chatdialog.h"
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ChatDialog::ChatDialog(QWidget *parent)
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: QDialog(parent)
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{
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setupUi(this);
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lineEdit->setFocusPolicy(Qt::StrongFocus);
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textEdit->setFocusPolicy(Qt::NoFocus);
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textEdit->setReadOnly(true);
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listWidget->setFocusPolicy(Qt::NoFocus);
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connect(lineEdit, &QLineEdit::returnPressed,
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this, &ChatDialog::returnPressed);
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connect(&client, &Client::newMessage,
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this, &ChatDialog::appendMessage);
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connect(&client, &Client::newParticipant,
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this, &ChatDialog::newParticipant);
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connect(&client, &Client::participantLeft,
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this, &ChatDialog::participantLeft);
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myNickName = client.nickName();
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newParticipant(myNickName);
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tableFormat.setBorder(0);
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QTimer::singleShot(10 * 1000, this, &ChatDialog::showInformation);
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}
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void ChatDialog::appendMessage(const QString &from, const QString &message)
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{
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if (from.isEmpty() || message.isEmpty())
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return;
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QTextCursor cursor(textEdit->textCursor());
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cursor.movePosition(QTextCursor::End);
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QTextTable *table = cursor.insertTable(1, 2, tableFormat);
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table->cellAt(0, 0).firstCursorPosition().insertText('<' + from + "> ");
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table->cellAt(0, 1).firstCursorPosition().insertText(message);
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QScrollBar *bar = textEdit->verticalScrollBar();
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bar->setValue(bar->maximum());
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}
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void ChatDialog::returnPressed()
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{
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QString text = lineEdit->text();
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if (text.isEmpty())
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return;
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if (text.startsWith(QChar('/'))) {
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QColor color = textEdit->textColor();
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textEdit->setTextColor(Qt::red);
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textEdit->append(tr("! Unknown command: %1")
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.arg(text.left(text.indexOf(' '))));
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textEdit->setTextColor(color);
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} else {
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client.sendMessage(text);
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appendMessage(myNickName, text);
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}
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lineEdit->clear();
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}
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void ChatDialog::newParticipant(const QString &nick)
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{
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if (nick.isEmpty())
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return;
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QColor color = textEdit->textColor();
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textEdit->setTextColor(Qt::gray);
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textEdit->append(tr("* %1 has joined").arg(nick));
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textEdit->setTextColor(color);
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listWidget->addItem(nick);
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}
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void ChatDialog::participantLeft(const QString &nick)
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{
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if (nick.isEmpty())
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return;
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QList<QListWidgetItem *> items = listWidget->findItems(nick,
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Qt::MatchExactly);
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if (items.isEmpty())
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return;
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delete items.at(0);
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QColor color = textEdit->textColor();
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textEdit->setTextColor(Qt::gray);
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textEdit->append(tr("* %1 has left").arg(nick));
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textEdit->setTextColor(color);
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}
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void ChatDialog::showInformation()
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{
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if (listWidget->count() == 1) {
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QMessageBox::information(this, tr("Chat"),
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tr("Launch several instances of this "
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"program on your local network and "
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"start chatting!"));
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}
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}
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