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#include "channeldelegate.h"
#include <QPainter>
#include <QApplication>
ChannelDelegate::ChannelDelegate(QObject *parent)
: QStyledItemDelegate(parent) {}
QRect ChannelDelegate::inviteButtonRect(const QRect &itemRect) {
const int margin = 6;
return QRect(itemRect.right() - margin - InviteBtnSize,
itemRect.top() + margin,
InviteBtnSize, InviteBtnSize);
}
QRect ChannelDelegate::inviteByLinkButtonRect(const QRect &itemRect) {
const int margin = 6;
return QRect(itemRect.right() - margin - InviteBtnSize * 2 - InviteBtnGap,
itemRect.top() + margin,
InviteBtnSize, InviteBtnSize);
}
QRect ChannelDelegate::settingsButtonRect(const QRect &itemRect) {
const int margin = 6;
return QRect(itemRect.right() - margin - InviteBtnSize * 3 - InviteBtnGap * 2,
itemRect.top() + margin,
InviteBtnSize, InviteBtnSize);
}
void ChannelDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const {
painter->save();
/* ── заголовок секции (например, «Личные») ── */
if (index.data(ChannelIsSectionRole).toBool()) {
painter->fillRect(option.rect, option.palette.window());
painter->setPen(option.palette.mid().color());
QFont f = option.font;
f.setBold(true);
painter->setFont(f);
QRect tr = option.rect.adjusted(12, 0, -8, 0);
painter->drawText(tr, Qt::AlignLeft | Qt::AlignVCenter,
index.data(ChannelNameRole).toString());
painter->restore();
return;
}
const int barWidth = 4;
const int margin = 8;
const int iconSize = 32;
int peersOnline = index.data(ChannelPeersOnlineRole).toInt();
int autoActive = index.data(ChannelAutoConnectActiveRole).toInt();
/* ── background ── */
if (option.state & QStyle::State_Selected) {
painter->fillRect(option.rect, option.palette.highlight());
} else if (option.state & QStyle::State_MouseOver) {
painter->fillRect(option.rect, option.palette.light());
} else {
painter->fillRect(option.rect, option.palette.base());
}
/* ── vertical status bar (left edge, over background) ── */
QColor barColor = Qt::transparent;
if (peersOnline > 0) barColor = QColor("#4CAF50");
else if (autoActive && peersOnline == 0) barColor = QColor("#FFC107");
if (barColor.alpha() > 0) {
QRect barRect(option.rect.left(), option.rect.top(), barWidth, option.rect.height());
painter->fillRect(barRect, barColor);
}
QRect iconRect(option.rect.left() + margin + barWidth,
option.rect.top() + (option.rect.height() - iconSize) / 2,
iconSize, iconSize);
QIcon icon = qvariant_cast<QIcon>(index.data(ChannelIconRole));
if (!icon.isNull()) {
icon.paint(painter, iconRect);
}
/* ── online count badge (top-left of avatar, above it) ── */
if (peersOnline > 0) {
int badgeSize = 16;
QRect badgeRect(iconRect.left() - 4, iconRect.top() - 6, badgeSize, badgeSize);
painter->setRenderHint(QPainter::Antialiasing);
painter->setBrush(QColor("#4CAF50"));
painter->setPen(QPen(Qt::white, 1.5));
painter->drawEllipse(badgeRect);
QFont badgeFont = option.font;
badgeFont.setBold(true);
badgeFont.setPixelSize(10);
painter->setFont(badgeFont);
painter->setPen(Qt::white);
QString num = QString::number(peersOnline);
if (peersOnline > 9) num = "9+";
painter->drawText(badgeRect, Qt::AlignCenter, num);
}
QRect textRect(iconRect.right() + margin, option.rect.top() + margin,
option.rect.right() - iconRect.right() - 2 * margin,
option.rect.height() - 2 * margin);
QString name = index.data(ChannelNameRole).toString();
QFont nameFont = option.font;
nameFont.setBold(true);
nameFont.setPointSize(nameFont.pointSize() + 1);
painter->setFont(nameFont);
QColor textColor = (option.state & QStyle::State_Selected)
? option.palette.highlightedText().color()
: option.palette.text().color();
painter->setPen(textColor);
QRect nameRect = textRect;
nameRect.setHeight(QFontMetrics(nameFont).height());
nameRect.setRight(nameRect.right() - InviteBtnSize * 3 - InviteBtnGap * 2 - 4);
painter->drawText(nameRect, Qt::AlignLeft | Qt::AlignTop,
painter->fontMetrics().elidedText(name, Qt::ElideRight, nameRect.width()));
QString lastMsg = index.data(ChannelLastMessageRole).toString();
if (!lastMsg.isEmpty()) {
QFont msgFont = option.font;
msgFont.setPointSize(msgFont.pointSize() - 1);
QColor nickColor(0x33, 0x90, 0xEC);
QColor msgColor = (option.state & QStyle::State_Selected)
? option.palette.highlightedText().color().darker(120)
: QColor(128, 128, 128);
if (option.state & QStyle::State_Selected) nickColor = nickColor.lighter(140);
QRect msgRect(textRect.left(), nameRect.bottom() + 4,
textRect.width(),
option.rect.bottom() - nameRect.bottom() - margin);
QFontMetrics msgFm(msgFont);
int colon = lastMsg.indexOf(QString::fromUtf8(": "));
if (colon >= 0) {
QString nick = lastMsg.left(colon + 1);
QString body = lastMsg.mid(colon + 2);
painter->setFont(msgFont);
painter->setPen(nickColor);
QRect nickRect = msgRect;
nickRect.setWidth(msgFm.horizontalAdvance(nick));
painter->drawText(nickRect, Qt::AlignLeft | Qt::AlignTop, nick);
painter->setPen(msgColor);
QRect bodyRect(msgRect.left() + nickRect.width(), msgRect.top(),
msgRect.width() - nickRect.width(), msgRect.height());
QString elidedBody = msgFm.elidedText(body, Qt::ElideRight, bodyRect.width());
painter->drawText(bodyRect, Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, elidedBody);
} else {
painter->setFont(msgFont);
painter->setPen(msgColor);
QString elided = msgFm.elidedText(lastMsg, Qt::ElideRight, msgRect.width());
painter->drawText(msgRect, Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, elided);
}
}
/* ── unread count badge (right of channel name) ── */
int unread = index.data(ChannelUnreadCountRole).toInt();
if (unread > 0) {
QString unreadText = unread > 99 ? QStringLiteral("99+") : QString::number(unread);
QFont badgeFont = option.font;
badgeFont.setBold(true);
badgeFont.setPixelSize(11);
QFontMetrics badgeFm(badgeFont);
int textW = badgeFm.horizontalAdvance(unreadText) + 8;
int badgeH = 18;
if (textW < badgeH) textW = badgeH;
QRect badgeRect(textRect.right() - textW, nameRect.top(),
textW, badgeH);
painter->setRenderHint(QPainter::Antialiasing);
painter->setBrush(QColor("#E53935"));
painter->setPen(Qt::NoPen);
painter->drawRoundedRect(badgeRect, badgeH / 2, badgeH / 2);
painter->setFont(badgeFont);
painter->setPen(Qt::white);
painter->drawText(badgeRect, Qt::AlignCenter, unreadText);
}
/* ── invite plus button (top-right) ── */
QRect plusRect = inviteButtonRect(option.rect);
bool plusHovered = index.data(ChannelInviteBtnHoveredRole).toInt() != 0;
painter->setRenderHint(QPainter::Antialiasing);
QColor plusFill = plusHovered ? QColor(0x4A, 0xA4, 0xF0) : QColor(0x33, 0x90, 0xEC);
painter->setBrush(plusFill);
painter->setPen(Qt::NoPen);
painter->drawEllipse(plusRect);
painter->setPen(QPen(Qt::white, 2));
painter->drawLine(plusRect.center().x(), plusRect.top() + 5,
plusRect.center().x(), plusRect.bottom() - 5);
painter->drawLine(plusRect.left() + 5, plusRect.center().y(),
plusRect.right() - 5, plusRect.center().y());
/* ── invite-by-link button (left of plus, orange square with arrow) ── */
QRect invRect = inviteByLinkButtonRect(option.rect);
bool invHovered = index.data(ChannelInviteByLinkBtnHoveredRole).toInt() != 0;
painter->setRenderHint(QPainter::Antialiasing);
QColor invFill = invHovered ? QColor(0xF0, 0x90, 0x30) : QColor(0xE6, 0x7E, 0x22);
painter->setBrush(invFill);
painter->setPen(Qt::NoPen);
painter->drawRoundedRect(invRect, 3, 3);
painter->setPen(QPen(Qt::white, 1.5));
/* arrow: ← */
int cx = invRect.center().x(), cy = invRect.center().y();
int dx = 3;
painter->drawLine(cx + dx, cy - 3, cx - dx, cy);
painter->drawLine(cx + dx, cy + 3, cx - dx, cy);
painter->drawLine(cx + dx + 1, cy, cx + dx + 1, cy - 3 + 1);
painter->drawLine(cx + dx + 1, cy, cx + dx + 1, cy + 3 - 1);
/* ── settings gear (left of invite-by-link button) ── */
QRect gearRect = settingsButtonRect(option.rect);
bool gearHovered = index.data(ChannelSettingsBtnHoveredRole).toInt() != 0;
QColor gearColor = gearHovered ? QColor("#3390EC") : QColor("#555");
painter->setPen(QPen(gearColor, 2));
painter->setBrush(Qt::NoBrush);
int gr = 5;
painter->drawEllipse(gearRect.center(), gr, gr);
painter->drawEllipse(gearRect.center(), gr / 2, gr / 2);
int gcx = gearRect.center().x(), gcy = gearRect.center().y();
painter->drawLine(gcx, gcy - gr, gcx, gcy - gr + 1);
painter->drawLine(gcx, gcy + gr, gcx, gcy + gr - 1);
painter->drawLine(gcx - gr, gcy, gcx - gr + 1, gcy);
painter->drawLine(gcx + gr, gcy, gcx + gr - 1, gcy);
painter->drawLine(gcx - 3, gcy - 4, gcx - 3, gcy - 5);
painter->drawLine(gcx + 3, gcy + 4, gcx + 3, gcy + 5);
painter->drawLine(gcx - 4, gcy - 3, gcx - 5, gcy - 3);
painter->drawLine(gcx + 4, gcy + 3, gcx + 5, gcy + 3);
painter->restore();
}
QSize ChannelDelegate::sizeHint(const QStyleOptionViewItem &option,
const QModelIndex &index) const {
Q_UNUSED(option);
Q_UNUSED(index);
return QSize(200, 56);
}