132 lines
3.2 KiB
C++
132 lines
3.2 KiB
C++
/*
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
SPDX-FileCopyrightText: 2012 Martin Gräßlin <mgraesslin@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
#include "desktopchain.h"
|
|
|
|
namespace KWin
|
|
{
|
|
namespace TabBox
|
|
{
|
|
|
|
DesktopChain::DesktopChain(uint initialSize)
|
|
: m_chain(initialSize)
|
|
{
|
|
init();
|
|
}
|
|
|
|
void DesktopChain::init()
|
|
{
|
|
for (int i = 0; i < m_chain.size(); ++i) {
|
|
m_chain[i] = i + 1;
|
|
}
|
|
}
|
|
|
|
uint DesktopChain::next(uint indexDesktop) const
|
|
{
|
|
const int i = m_chain.indexOf(indexDesktop);
|
|
if (i >= 0 && i + 1 < m_chain.size()) {
|
|
return m_chain[i+1];
|
|
} else if (m_chain.size() > 0) {
|
|
return m_chain[0];
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
void DesktopChain::resize(uint previousSize, uint newSize)
|
|
{
|
|
Q_ASSERT(int(previousSize) == m_chain.size());
|
|
m_chain.resize(newSize);
|
|
|
|
if (newSize >= previousSize) {
|
|
// We do not destroy the chain in case new desktops are added
|
|
for (uint i = previousSize; i < newSize; ++i) {
|
|
m_chain[i] = i + 1;
|
|
}
|
|
} else {
|
|
// But when desktops are removed, we may have to modify the chain a bit,
|
|
// otherwise invalid desktops may show up.
|
|
for (int i = 0; i < m_chain.size(); ++i) {
|
|
m_chain[i] = qMin(m_chain[i], newSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DesktopChain::add(uint desktop)
|
|
{
|
|
if (m_chain.isEmpty() || int(desktop) > m_chain.count()) {
|
|
return;
|
|
}
|
|
int index = m_chain.indexOf(desktop);
|
|
if (index == -1) {
|
|
// not found - shift all elements by one position
|
|
index = m_chain.size() - 1;
|
|
}
|
|
for (int i = index; i > 0; --i) {
|
|
m_chain[i] = m_chain[i-1];
|
|
}
|
|
m_chain[0] = desktop;
|
|
}
|
|
|
|
DesktopChainManager::DesktopChainManager(QObject *parent)
|
|
: QObject(parent)
|
|
, m_maxChainSize(0)
|
|
{
|
|
m_currentChain = m_chains.insert(QString(), DesktopChain());
|
|
}
|
|
|
|
DesktopChainManager::~DesktopChainManager()
|
|
{
|
|
}
|
|
|
|
uint DesktopChainManager::next(uint indexDesktop) const
|
|
{
|
|
return m_currentChain.value().next(indexDesktop);
|
|
}
|
|
|
|
void DesktopChainManager::resize(uint previousSize, uint newSize)
|
|
{
|
|
m_maxChainSize = newSize;
|
|
for (DesktopChains::iterator it = m_chains.begin(); it != m_chains.end(); ++it) {
|
|
it.value().resize(previousSize, newSize);
|
|
}
|
|
}
|
|
|
|
void DesktopChainManager::addDesktop(uint previousDesktop, uint currentDesktop)
|
|
{
|
|
Q_UNUSED(previousDesktop)
|
|
m_currentChain.value().add(currentDesktop);
|
|
}
|
|
|
|
void DesktopChainManager::useChain(const QString &identifier)
|
|
{
|
|
if (m_currentChain.key().isNull()) {
|
|
createFirstChain(identifier);
|
|
} else {
|
|
m_currentChain = m_chains.find(identifier);
|
|
if (m_currentChain == m_chains.end()) {
|
|
m_currentChain = addNewChain(identifier);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DesktopChainManager::createFirstChain(const QString &identifier)
|
|
{
|
|
DesktopChain value(m_currentChain.value());
|
|
m_chains.erase(m_currentChain);
|
|
m_currentChain = m_chains.insert(identifier, value);
|
|
}
|
|
|
|
QHash< QString, DesktopChain >::Iterator DesktopChainManager::addNewChain(const QString &identifier)
|
|
{
|
|
return m_chains.insert(identifier, DesktopChain(m_maxChainSize));
|
|
}
|
|
|
|
} // namespace TabBox
|
|
} // namespace KWin
|