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squawk/ui/models/item.cpp

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/*
* Squawk messenger.
* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
*
* This program is free 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
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#include "item.h"
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#include "account.h"
#include <QDebug>
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Models::Item::Item(Type p_type, const QMap<QString, QVariant> &p_data, Item *p_parent):
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QObject(),
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type(p_type),
name(""),
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childItems(),
parent(p_parent)
{
QMap<QString, QVariant>::const_iterator itr = p_data.find("name");
if (itr != p_data.end()) {
setName(itr.value().toString());
}
}
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Models::Item::Item(const Models::Item& other):
QObject(),
type(other.type),
name(other.name),
childItems(),
parent(nullptr)
{
}
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Models::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::Item::setName(const QString& p_name)
{
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if (name != p_name) {
name = p_name;
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changed(0);
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}
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}
void Models::Item::appendChild(Models::Item* child)
{
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bool moving = false;
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int newRow = 0;
std::deque<Item*>::const_iterator before = childItems.begin();
while (before != childItems.end()) {
Item* bfr = *before;
if (bfr->type > child->type) {
break;
} else if (bfr->type == child->type && bfr->getDisplayedName() > child->getDisplayedName()) {
break;
}
newRow++;
before++;
}
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if (child->parent != 0) {
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int oldRow = child->row();
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moving = true;
emit childIsAboutToBeMoved(child->parent, oldRow, oldRow, this, newRow);
child->parent->_removeChild(oldRow);
} else {
emit childIsAboutToBeInserted(this, newRow, newRow);
}
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childItems.insert(before, child);
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child->parent = this;
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QObject::connect(child, SIGNAL(childChanged(Models::Item*, int, int)), this, SIGNAL(childChanged(Models::Item*, int, int)));
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QObject::connect(child, SIGNAL(childIsAboutToBeInserted(Item*, int, int)), this, SIGNAL(childIsAboutToBeInserted(Item*, int, int)));
QObject::connect(child, SIGNAL(childInserted()), this, SIGNAL(childInserted()));
QObject::connect(child, SIGNAL(childIsAboutToBeRemoved(Item*, int, int)), this, SIGNAL(childIsAboutToBeRemoved(Item*, int, int)));
QObject::connect(child, SIGNAL(childRemoved()), this, SIGNAL(childRemoved()));
QObject::connect(child, SIGNAL(childIsAboutToBeMoved(Item*, int, int, Item*, int)), this, SIGNAL(childIsAboutToBeMoved(Item*, int, int, Item*, int)));
QObject::connect(child, SIGNAL(childMoved()), this, SIGNAL(childMoved()));
if (moving) {
emit childMoved();
} else {
emit childInserted();
}
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}
Models::Item * Models::Item::child(int row)
{
return childItems[row];
}
int Models::Item::childCount() const
{
return childItems.size();
}
int Models::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::Item * Models::Item::parentItem()
{
return parent;
}
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const Models::Item * Models::Item::parentItemConst() const
{
return parent;
}
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int Models::Item::columnCount() const
{
return 2;
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}
QString Models::Item::getName() const
{
return name;
}
QVariant Models::Item::data(int column) const
{
if (column != 0) {
return QVariant();
}
return name;
}
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void Models::Item::removeChild(int index)
{
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emit childIsAboutToBeRemoved(this, index, index);
_removeChild(index);
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emit childRemoved();
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}
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void Models::Item::_removeChild(int index)
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{
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Item* child = childItems[index];
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QObject::disconnect(child, SIGNAL(childChanged(Models::Item*, int, int)), this, SLOT(onChildChanged(Models::Item*, int, int)));
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QObject::disconnect(child, SIGNAL(childIsAboutToBeInserted(Item*, int, int)), this, SIGNAL(childIsAboutToBeInserted(Item*, int, int)));
QObject::disconnect(child, SIGNAL(childInserted()), this, SIGNAL(childInserted()));
QObject::disconnect(child, SIGNAL(childIsAboutToBeRemoved(Item*, int, int)), this, SIGNAL(childIsAboutToBeRemoved(Item*, int, int)));
QObject::disconnect(child, SIGNAL(childRemoved()), this, SIGNAL(childRemoved()));
QObject::disconnect(child, SIGNAL(childIsAboutToBeMoved(Item*, int, int, Item*, int)), this, SIGNAL(childIsAboutToBeMoved(Item*, int, int, Item*, int)));
QObject::disconnect(child, SIGNAL(childMoved()), this, SIGNAL(childMoved()));
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childItems.erase(childItems.begin() + index);
child->parent = 0;
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}
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void Models::Item::changed(int col)
{
if (parent != 0) {
emit childChanged(this, row(), col);
}
}
void Models::Item::toOfflineState()
{
for (std::deque<Item*>::iterator itr = childItems.begin(), end = childItems.end(); itr != end; ++itr) {
Item* it = *itr;
it->toOfflineState();
}
}
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const Models::Item * Models::Item::getParentAccount() const
{
const Item* p = this;
while (p != 0 && p->type != Item::account) {
p = p->parentItemConst();
}
return p;
}
QString Models::Item::getAccountJid() const
{
const Account* acc = static_cast<const Account*>(getParentAccount());
if (acc == 0) {
return "";
}
return acc->getLogin() + "@" + acc->getServer();
}
QString Models::Item::getAccountResource() const
{
const Account* acc = static_cast<const Account*>(getParentAccount());
if (acc == 0) {
return "";
}
return acc->getResource();
}
QString Models::Item::getAccountName() const
{
const Account* acc = static_cast<const Account*>(getParentAccount());
if (acc == 0) {
return "";
}
return acc->getName();
}
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Shared::Availability Models::Item::getAccountAvailability() const
{
const Account* acc = static_cast<const Account*>(getParentAccount());
if (acc == 0) {
return Shared::offline;
}
return acc->getAvailability();
}
Shared::ConnectionState Models::Item::getAccountConnectionState() const
{
const Account* acc = static_cast<const Account*>(getParentAccount());
if (acc == 0) {
return Shared::disconnected;
}
return acc->getState();
}
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QString Models::Item::getDisplayedName() const
{
return name;
}
void Models::Item::onChildChanged(Models::Item* item, int row, int col)
{
Item* parent = item->parentItem();
if (parent != 0 && parent == this) {
if (item->columnInvolvedInDisplay(col)) {
int newRow = 0;
std::deque<Item*>::const_iterator before = childItems.begin();
while (before != childItems.end()) {
Item* bfr = *before;
if (bfr->type > item->type) {
break;
} else if (bfr->type == item->type && bfr->getDisplayedName() > item->getDisplayedName()) {
break;
}
newRow++;
before++;
}
if (newRow != row || (before != childItems.end() && *before != item)) {
emit childIsAboutToBeMoved(this, row, row, this, newRow);
std::deque<Item*>::const_iterator old = childItems.begin();
old += row;
childItems.erase(old);
childItems.insert(before, item);
emit childMoved();
}
}
}
emit childChanged(item, row, col);
}
bool Models::Item::columnInvolvedInDisplay(int col)
{
return col == 0;
}