qTox/widget/form/groupchatform.cpp

/*
    Copyright (C) 2014 by Project Tox <https://tox.im>

    This file is part of qTox, a Qt-based graphical interface for Tox.

    This program is libre software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

    See the COPYING file for more details.
*/

#include "groupchatform.h"
#include "group.h"
#include "widget/groupwidget.h"
#include "widget/widget.h"
#include "friend.h"
#include "friendlist.h"
#include "style.h"
#include <QFont>
#include <QTime>
#include <QScrollBar>
#include <QMenu>
#include <QFile>
#include <QFileDialog>

GroupChatForm::GroupChatForm(Group* chatGroup)
    : group(chatGroup)
{
    nusers = new QLabel();
    namesList = new QLabel();

    fileButton->setEnabled(false);
    callButton->setVisible(false);
    videoButton->setVisible(false);
    volButton->setVisible(false);
    micButton->setVisible(false);

    QFont small;
    small.setPixelSize(10);

    nameLabel->setText(group->widget->name.text());
    nusers->setFont(small);
    nusers->setText(GroupChatForm::tr("%1 users in chat","Number of users in chat").arg(group->peers.size()));
    avatarLabel->setPixmap(QPixmap(":/img/group_dark.png"));

    QString names;
    for (QString& s : group->peers)
        names.append(s+", ");
    names.chop(2);
    namesList->setText(names);
    namesList->setFont(small);

    msgEdit->setObjectName("group");

    mainChatLayout->setColumnStretch(1,1);
    mainChatLayout->setHorizontalSpacing(10);

    headTextLayout->addWidget(nusers);
    headTextLayout->addWidget(namesList);
    headTextLayout->setMargin(0);
    headTextLayout->setSpacing(0);
    headTextLayout->addStretch();

    connect(sendButton, SIGNAL(clicked()), this, SLOT(onSendTriggered()));
    connect(msgEdit, SIGNAL(enterPressed()), this, SLOT(onSendTriggered()));
    connect(chatArea->verticalScrollBar(), SIGNAL(rangeChanged(int,int)), this, SLOT(onSliderRangeChanged()));
    connect(chatArea, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(onChatContextMenuRequested(QPoint)));
}

GroupChatForm::~GroupChatForm()
{

}

void GroupChatForm::onSendTriggered()
{
    QString msg = msgEdit->toPlainText();
    if (msg.isEmpty())
        return;
    msgEdit->clear();
    emit sendMessage(group->groupId, msg);
}

void GroupChatForm::addGroupMessage(QString message, int peerId)
{
    QLabel *msgAuthor;
    if (group->peers.contains(peerId))
        msgAuthor = new QLabel(group->peers[peerId]);
    else
        msgAuthor = new QLabel(tr("<Unknown>"));

    QLabel *msgText = new QLabel(message);
    QLabel *msgDate = new QLabel(QTime::currentTime().toString("hh:mm"));

    addMessage(msgAuthor, msgText, msgDate);
}

void GroupChatForm::addMessage(QString author, QString message, QString date)
{
    addMessage(new QLabel(author), new QLabel(message), new QLabel(date));
}

void GroupChatForm::addMessage(QLabel* author, QLabel* message, QLabel* date)
{
    QPalette greentext;
    greentext.setColor(QPalette::WindowText, QColor(61,204,61));
    QScrollBar* scroll = chatArea->verticalScrollBar();
    lockSliderToBottom = scroll && scroll->value() == scroll->maximum();
    author->setAlignment(Qt::AlignTop | Qt::AlignLeft);
    date->setAlignment(Qt::AlignTop);
    message->setWordWrap(true);
    message->setTextInteractionFlags(Qt::TextBrowserInteraction);
    author->setTextInteractionFlags(Qt::TextBrowserInteraction);
    date->setTextInteractionFlags(Qt::TextBrowserInteraction);
    if (author->text() == Widget::getInstance()->getUsername())
    {
        QPalette pal;
        pal.setColor(QPalette::WindowText, Qt::gray);
        author->setPalette(pal);
        message->setPalette(pal);
    }
    if (previousName.isEmpty() || previousName != author->text())
    {
        if (curRow)
        {
            mainChatLayout->setRowStretch(curRow, 0);
            mainChatLayout->addItem(new QSpacerItem(0,AUTHOR_CHANGE_SPACING),curRow,0,1,3);
        }
        previousName = author->text();
        curRow++;
    }
    else if (curRow)// onSaveLogClicked expects 0 or 3 QLabel per line
        author->setText("");
    if (message->text()[0] == '>')
        message->setPalette(greentext);
    mainChatLayout->addWidget(author, curRow, 0);
    mainChatLayout->addWidget(message, curRow, 1);
    mainChatLayout->addWidget(date, curRow, 3);
    mainChatLayout->setRowStretch(curRow+1, 1);
    mainChatLayout->setRowStretch(curRow, 0);
    curRow++;
    author->setContextMenuPolicy(Qt::CustomContextMenu);
    message->setContextMenuPolicy(Qt::CustomContextMenu);
    date->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(author, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(onChatContextMenuRequested(QPoint)));
    connect(message, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(onChatContextMenuRequested(QPoint)));
    connect(date, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(onChatContextMenuRequested(QPoint)));
}

void GroupChatForm::onUserListChanged()
{
    nusers->setText(tr("%1 users in chat").arg(group->nPeers));
    QString names;
    for (QString& s : group->peers)
        names.append(s+", ");
    names.chop(2);
    namesList->setText(names);
}