git.iko.soy/unity8
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unity8/plugins/Utils/globalfunctions.cpp
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1/*
2 * Copyright 2015 Canonical Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Lesser General Public License for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15*/
17#include "globalfunctions.h"
19#pragma GCC diagnostic push
20#pragma GCC diagnostic ignored "-pedantic"
21#include <private/qquickitem_p.h>
22#pragma GCC diagnostic pop
23#include <QQmlEngine>
25GlobalFunctions::GlobalFunctions(QObject *parent)
26 : QObject(parent)
30QQuickItem *GlobalFunctions::itemAt(QQuickItem* parent, int x, int y, QJSValue matcher)
32 if (!parent) return nullptr;
33 QList<QQuickItem *> children = QQuickItemPrivate::get(parent)->paintOrderChildItems();
35 for (int i = children.count() - 1; i >= 0; --i) {
36 QQuickItem *child = children.at(i);
38 // Map coordinates to the child element's coordinate space
39 QPointF point = parent->mapToItem(child, QPointF(x, y));
40 if (child->isVisible() && point.x() >= 0
41 && child->width() >= point.x()
42 && point.y() >= 0
43 && child->height() >= point.y()) {
44 if (!matcher.isCallable()) return child;
46 QQmlEngine* engine = qmlEngine(child);
47 if (!engine) return child;
49 QJSValue newObj = engine->newQObject(child);
50 if (matcher.call(QJSValueList() << newObj).toBool()) {
51 return child;
52 }
53 }
54 }
55 return nullptr;