/* SPDX-FileCopyrightText: 2021 Vlad Zahorodnii SPDX-License-Identifier: GPL-2.0-or-later */ #include "item.h" namespace KWin { Item::Item(Scene::Window *window, Item *parent) : m_window(window) { setParentItem(parent); } Item::~Item() { setParentItem(nullptr); } int Item::x() const { return m_x; } void Item::setX(int x) { if (m_x == x) { return; } scheduleRepaint(boundingRect()); m_x = x; scheduleRepaint(boundingRect()); discardQuads(); emit xChanged(); } int Item::y() const { return m_y; } void Item::setY(int y) { if (m_y == y) { return; } scheduleRepaint(boundingRect()); m_y = y; scheduleRepaint(boundingRect()); discardQuads(); emit yChanged(); } int Item::width() const { return m_width; } void Item::setWidth(int width) { if (m_width == width) { return; } scheduleRepaint(rect()); m_width = width; updateBoundingRect(); scheduleRepaint(rect()); discardQuads(); emit widthChanged(); } int Item::height() const { return m_height; } void Item::setHeight(int height) { if (m_height == height) { return; } scheduleRepaint(rect()); m_height = height; updateBoundingRect(); scheduleRepaint(rect()); discardQuads(); emit heightChanged(); } Item *Item::parentItem() const { return m_parentItem; } void Item::setParentItem(Item *item) { if (m_parentItem == item) { return; } if (m_parentItem) { m_parentItem->removeChild(this); } m_parentItem = item; if (m_parentItem) { m_parentItem->addChild(this); } } void Item::addChild(Item *item) { Q_ASSERT(!m_childItems.contains(item)); connect(item, &Item::xChanged, this, &Item::updateBoundingRect); connect(item, &Item::yChanged, this, &Item::updateBoundingRect); connect(item, &Item::boundingRectChanged, this, &Item::updateBoundingRect); m_childItems.append(item); updateBoundingRect(); scheduleRepaint(item->boundingRect().translated(item->position())); discardQuads(); } void Item::removeChild(Item *item) { Q_ASSERT(m_childItems.contains(item)); scheduleRepaint(item->boundingRect().translated(item->position())); m_childItems.removeOne(item); disconnect(item, &Item::xChanged, this, &Item::updateBoundingRect); disconnect(item, &Item::yChanged, this, &Item::updateBoundingRect); disconnect(item, &Item::boundingRectChanged, this, &Item::updateBoundingRect); updateBoundingRect(); discardQuads(); } QList Item::childItems() const { return m_childItems; } Scene::Window *Item::window() const { return m_window; } QPoint Item::position() const { return QPoint(x(), y()); } void Item::setPosition(const QPoint &point) { const bool xDirty = (x() != point.x()); const bool yDirty = (y() != point.y()); if (xDirty || yDirty) { scheduleRepaint(boundingRect()); m_x = point.x(); m_y = point.y(); scheduleRepaint(boundingRect()); discardQuads(); if (xDirty) { emit xChanged(); } if (yDirty) { emit yChanged(); } } } QSize Item::size() const { return QSize(width(), height()); } void Item::setSize(const QSize &size) { const bool widthDirty = (width() != size.width()); const bool heightDirty = (height() != size.height()); if (widthDirty || heightDirty) { scheduleRepaint(rect()); m_width = size.width(); m_height = size.height(); updateBoundingRect(); scheduleRepaint(rect()); discardQuads(); if (widthDirty) { emit widthChanged(); } if (heightDirty) { emit heightChanged(); } } } QRect Item::rect() const { return QRect(QPoint(0, 0), size()); } QRect Item::boundingRect() const { return m_boundingRect; } void Item::updateBoundingRect() { QRect boundingRect = rect(); for (Item *item : qAsConst(m_childItems)) { boundingRect |= item->boundingRect().translated(item->position()); } if (m_boundingRect != boundingRect) { m_boundingRect = boundingRect; emit boundingRectChanged(); } } QPoint Item::rootPosition() const { QPoint ret = position(); Item *parent = parentItem(); while (parent) { ret += parent->position(); parent = parent->parentItem(); } return ret; } QRegion Item::mapToGlobal(const QRegion ®ion) const { return region.translated(rootPosition()); } QRect Item::mapToGlobal(const QRect &rect) const { return rect.translated(rootPosition()); } void Item::stackBefore(Item *sibling) { if (Q_UNLIKELY(!sibling)) { qCDebug(KWIN_CORE) << Q_FUNC_INFO << "requires a valid sibling"; return; } if (Q_UNLIKELY(!sibling->parentItem() || sibling->parentItem() != parentItem())) { qCDebug(KWIN_CORE) << Q_FUNC_INFO << "requires items to be siblings"; return; } if (Q_UNLIKELY(sibling == this)) { return; } const int selfIndex = m_parentItem->m_childItems.indexOf(this); const int siblingIndex = m_parentItem->m_childItems.indexOf(sibling); if (selfIndex == siblingIndex - 1) { return; } m_parentItem->m_childItems.move(selfIndex, selfIndex > siblingIndex ? siblingIndex : siblingIndex - 1); scheduleRepaint(boundingRect()); sibling->scheduleRepaint(sibling->boundingRect()); discardQuads(); } void Item::stackAfter(Item *sibling) { if (Q_UNLIKELY(!sibling)) { qCDebug(KWIN_CORE) << Q_FUNC_INFO << "requires a valid sibling"; return; } if (Q_UNLIKELY(!sibling->parentItem() || sibling->parentItem() != parentItem())) { qCDebug(KWIN_CORE) << Q_FUNC_INFO << "requires items to be siblings"; return; } if (Q_UNLIKELY(sibling == this)) { return; } const int selfIndex = m_parentItem->m_childItems.indexOf(this); const int siblingIndex = m_parentItem->m_childItems.indexOf(sibling); if (selfIndex == siblingIndex + 1) { return; } m_parentItem->m_childItems.move(selfIndex, selfIndex > siblingIndex ? siblingIndex + 1 : siblingIndex); scheduleRepaint(boundingRect()); sibling->scheduleRepaint(sibling->boundingRect()); discardQuads(); } void Item::stackChildren(const QList &children) { if (m_childItems.count() != children.count()) { qCWarning(KWIN_CORE) << Q_FUNC_INFO << "invalid child list"; return; } #if !defined(QT_NO_DEBUG) for (const Item *item : children) { Q_ASSERT_X(item->parentItem() == this, Q_FUNC_INFO, "invalid parent"); } #endif m_childItems = children; discardQuads(); } void Item::scheduleRepaint(const QRegion ®ion) { window()->addLayerRepaint(mapToGlobal(region)); } void Item::scheduleRepaint() { window()->scheduleRepaint(); } void Item::preprocess() { } void Item::discardQuads() { window()->discardQuads(); } } // namespace KWin