Files
llink/cpp/src/particlelistmodel.cpp
T

137 lines
3.1 KiB
C++

#include "particlelistmodel.h"
#include <QApplication>
#include <QBrush>
#include <QColor>
#include <QFont>
#include <QStyle>
ParticleListModel::ParticleListModel(Store *store, QObject *parent)
: QAbstractListModel(parent), m_store(store), m_currentStreamId()
{
connect(m_store, &Store::particlesChanged, this, [this](const QString &streamId) {
if (streamId == m_currentStreamId)
{
beginResetModel();
endResetModel();
}
});
// Granular update: repaint a single row when a particle property changes
connect(m_store, &Store::particleUpdated, this, [this](const QString &streamId, const QString &particleId) {
if (streamId != m_currentStreamId)
return;
const QList<Particle> &particles = m_store->particlesForStream(m_currentStreamId);
for (int i = 0; i < particles.size(); ++i)
{
if (particles.at(i).id == particleId)
{
QModelIndex idx = index(i, 0);
emit dataChanged(idx, idx, {Qt::DisplayRole, Qt::ForegroundRole});
return;
}
}
});
}
int ParticleListModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
{
return 0;
}
if (m_currentStreamId.isEmpty())
{
return 0;
}
return m_store->particleCount(m_currentStreamId);
}
QVariant ParticleListModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
{
return QVariant();
}
if (m_currentStreamId.isEmpty())
{
return QVariant();
}
const QList<Particle> &particles = m_store->particlesForStream(m_currentStreamId);
if (index.row() < 0 || index.row() >= particles.size())
{
return QVariant();
}
const Particle &particle = particles.at(index.row());
if (role == Qt::DisplayRole)
{
QString emailPrefix = particle.createdByEmail.split("@")[0];
QString summary = particle.data.value("content").toString();
if (summary.isEmpty())
{
summary = particle.type;
}
QString display = QString("[%1] - %2").arg(emailPrefix, summary);
return display;
}
else if (role == Qt::ForegroundRole)
{
// Make seen particles subtle grey, unseen stay default color
if (particle.seen)
{
return QBrush(QColor(128, 128, 128)); // Medium grey for seen items
}
// Unseen items use default foreground color
}
return QVariant();
}
void ParticleListModel::setStreamId(const QString &streamId)
{
beginResetModel();
m_currentStreamId = streamId;
endResetModel();
}
int ParticleListModel::firstUnseenRow() const
{
if (m_currentStreamId.isEmpty())
{
return -1;
}
const QList<Particle> &particles = m_store->particlesForStream(m_currentStreamId);
for (int i = 0; i < particles.size(); ++i)
{
if (!particles.at(i).seen)
{
return i;
}
}
return -1; // All seen or empty
}
const Particle *ParticleListModel::particleAtRow(int row) const
{
if (m_currentStreamId.isEmpty())
{
return nullptr;
}
const QList<Particle> &particles = m_store->particlesForStream(m_currentStreamId);
if (row >= 0 && row < particles.size())
{
return &particles.at(row);
}
return nullptr;
}