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squawk/ui/models/roster.cpp

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#include "roster.h"
using namespace Models;
Models::Roster::Roster(QObject* parent):
QAbstractItemModel(parent),
root(0)
{
root = new Item(Item::root, {{"name", "root"}});
}
Models::Roster::~Roster()
{
delete root;
}
void Models::Roster::addAccount(const QMap<QString, QVariant>& data)
{
Item* acc = new Item(Item::account, data, root);
beginInsertRows(QModelIndex(), root->childCount(), root->childCount());
root->appendChild(acc);
accounts.insert(std::make_pair(acc->name(), acc));
endInsertRows();
}
QVariant Models::Roster::data (const QModelIndex& index, int role) const
{
if (!index.isValid()) {
return QVariant();
}
QVariant result;
switch (role) {
case Qt::DisplayRole:
{
Item *item = static_cast<Item*>(index.internalPointer());
result = item->data(index.column());
}
break;
default:
break;
}
return result;
}
int Models::Roster::columnCount (const QModelIndex& parent) const
{
if (parent.isValid()) {
return static_cast<Item*>(parent.internalPointer())->columnCount();
} else {
return root->columnCount();
}
}
Qt::ItemFlags Models::Roster::flags(const QModelIndex& index) const
{
if (!index.isValid()) {
return 0;
}
return QAbstractItemModel::flags(index);
}
int Models::Roster::rowCount (const QModelIndex& parent) const
{
Item *parentItem;
if (parent.column() > 0) {
return 0;
}
if (!parent.isValid()) {
parentItem = root;
} else {
parentItem = static_cast<Item*>(parent.internalPointer());
}
return parentItem->childCount();
}
QVariant Models::Roster::headerData(int section, Qt::Orientation orientation, int role) const
{
return QVariant();
}
QModelIndex Models::Roster::parent (const QModelIndex& child) const
{
if (!child.isValid()) {
return QModelIndex();
}
Item *childItem = static_cast<Item*>(child.internalPointer());
Item *parentItem = childItem->parentItem();
if (parentItem == root) {
return QModelIndex();
}
return createIndex(parentItem->row(), 0, parentItem);
}
QModelIndex Models::Roster::index (int row, int column, const QModelIndex& parent) const
{
if (!hasIndex(row, column, parent)) {
return QModelIndex();
}
Item *parentItem;
if (!parent.isValid()) {
parentItem = root;
} else {
parentItem = static_cast<Item*>(parent.internalPointer());
}
Item *childItem = parentItem->child(row);
if (childItem) {
return createIndex(row, column, childItem);
} else {
return QModelIndex();
}
}
Models::Roster::Item::Item(Type p_type, const QMap<QString, QVariant> &p_data, Item *p_parent):
type(p_type),
childItems(),
itemData(),
parent(p_parent)
{
itemData.push_back(p_data.value("name"));
}
Models::Roster::Item::~Item()
{
std::deque<Item*>::const_iterator itr = childItems.begin();
std::deque<Item*>::const_iterator end = childItems.end();
for (;itr != end; ++itr) {
delete (*itr);
}
}
void Models::Roster::Item::appendChild(Models::Roster::Item* child)
{
childItems.push_back(child);
}
Models::Roster::Item * Models::Roster::Item::child(int row)
{
return childItems[row];
}
int Models::Roster::Item::childCount() const
{
return childItems.size();
}
int Models::Roster::Item::row() const
{
if (parent != 0) {
std::deque<Item*>::const_iterator itr = parent->childItems.begin();
std::deque<Item*>::const_iterator end = parent->childItems.end();
for (int i = 0; itr != end; ++itr, ++i) {
if (*itr == this) {
return i;
}
}
}
return 0; //TODO not sure how it helps, i copy-pasted it from the example
}
Models::Roster::Item * Models::Roster::Item::parentItem()
{
return parent;
}
int Models::Roster::Item::columnCount() const
{
return itemData.size();
}
QString Models::Roster::Item::name() const
{
return itemData[0].toString();
}
QVariant Models::Roster::Item::data(int column) const
{
return itemData[column];
}
Models::Roster::ElId::ElId(const QString& p_account, const QString& p_name):
account(p_account),
name(p_name)
{
}
bool Models::Roster::ElId::operator <(const Models::Roster::ElId& other) const
{
if (account == other.account) {
return name < other.name;
} else {
return account < other.account;
}
}