131 lines
4.2 KiB
C++
131 lines
4.2 KiB
C++
/*
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* Squawk messenger.
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* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QPainter>
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#include <QApplication>
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#include "messagedelegate.h"
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#include "ui/models/messagefeed.h"
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constexpr int avatarHeight = 50;
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constexpr int margin = 6;
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MessageDelegate::MessageDelegate(QObject* parent):
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QStyledItemDelegate(parent),
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bodyFont(),
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nickFont(),
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dateFont(),
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bodyMetrics(bodyFont),
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nickMetrics(nickFont),
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dateMetrics(dateFont)
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{
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}
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MessageDelegate::~MessageDelegate()
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{
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}
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void MessageDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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bool sentByMe = false;
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QVariant sbm = index.data(Models::MessageFeed::SentByMe);
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if (sbm.isValid()) {
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sentByMe = sbm.toBool();
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}
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing, true);
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QIcon icon(index.data(Models::MessageFeed::Avatar).toString());
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if (sentByMe) {
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painter->drawPixmap(option.rect.width() - avatarHeight - margin, option.rect.y() + margin / 2, icon.pixmap(avatarHeight, avatarHeight));
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} else {
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painter->drawPixmap(margin, option.rect.y() + margin / 2, icon.pixmap(avatarHeight, avatarHeight));
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}
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QStyleOptionViewItem opt = option;
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QRect messageRect = option.rect.adjusted(margin, margin / 2, -(avatarHeight + 2 * margin), -margin / 2);
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if (!sentByMe) {
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opt.displayAlignment = Qt::AlignLeft | Qt::AlignTop;
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messageRect.adjust(avatarHeight + margin, 0, avatarHeight + margin, 0);
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} else {
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opt.displayAlignment = Qt::AlignRight | Qt::AlignTop;
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}
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opt.rect = messageRect;
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QRect rect;
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painter->setFont(nickFont);
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painter->drawText(opt.rect, opt.displayAlignment, index.data(Models::MessageFeed::Sender).toString(), &rect);
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opt.rect.adjust(0, rect.height(), 0, 0);
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painter->setFont(bodyFont);
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painter->drawText(opt.rect, opt.displayAlignment | Qt::TextWordWrap, index.data(Models::MessageFeed::Text).toString(), &rect);
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opt.rect.adjust(0, rect.height(), 0, 0);
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painter->setFont(dateFont);
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QColor q = painter->pen().color();
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q.setAlpha(180);
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painter->setPen(q);
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painter->drawText(opt.rect, opt.displayAlignment, index.data(Models::MessageFeed::Date).toDateTime().toLocalTime().toString(), &rect);
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painter->restore();
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}
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QSize MessageDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
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{
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QRect messageRect = option.rect.adjusted(0, margin / 2, -(avatarHeight + 3 * margin), -margin);
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QStyleOptionViewItem opt = option;
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opt.rect = messageRect;
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QSize messageSize = bodyMetrics.boundingRect(messageRect, Qt::TextWordWrap, index.data(Models::MessageFeed::Text).toString()).size();
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messageSize.rheight() += nickMetrics.lineSpacing();
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messageSize.rheight() += dateMetrics.height();
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if (messageSize.height() < avatarHeight) {
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messageSize.setHeight(avatarHeight);
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}
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messageSize.rheight() += margin;
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return messageSize;
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}
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void MessageDelegate::initializeFonts(const QFont& font)
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{
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bodyFont = font;
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nickFont = font;
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dateFont = font;
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nickFont.setBold(true);
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dateFont.setItalic(true);
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float dps = dateFont.pointSizeF();
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if (dps != -1) {
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dateFont.setPointSizeF(dps * 0.7);
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} else {
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dateFont.setPointSize(dateFont.pointSize() - 2);
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}
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bodyMetrics = QFontMetrics(bodyFont);
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nickMetrics = QFontMetrics(nickFont);
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dateMetrics = QFontMetrics(dateFont);
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}
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// void MessageDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
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// {
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//
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// }
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