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globalfunctions.cpp
/*
* Copyright 2015 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "globalfunctions.h"
#include <QColor>
#include <QQmlEngine>
#include <private/qquickitem_p.h>
GlobalFunctions::GlobalFunctions(QObject *parent)
: QObject(parent)
{
}
QQuickItem *GlobalFunctions::itemAt(QQuickItem* parent, int x, int y, QJSValue matcher)
{
if (!parent) return nullptr;
QList<QQuickItem *> children = QQuickItemPrivate::get(parent)->paintOrderChildItems();
for (int i = children.count() - 1; i >= 0; --i) {
QQuickItem *child = children.at(i);
// Map coordinates to the child element's coordinate space
QPointF point = parent->mapToItem(child, QPointF(x, y));
if (child->isVisible() && point.x() >= 0
&& child->width() >= point.x()
&& point.y() >= 0
&& child->height() >= point.y()) {
if (!matcher.isCallable()) return child;
QQmlEngine* engine = qmlEngine(child);
if (!engine) return child;
QJSValue newObj = engine->newQObject(child);
if (matcher.call(QJSValueList() << newObj).toBool()) {
return child;
}
}
}
return nullptr;
}
bool GlobalFunctions::itemUnderMouse(QQuickItem* item)
{
return item && item->isUnderMouse();
}
bool GlobalFunctions::isValidColor(const QString & colorName)
{
return QColor::isValidColor(colorName);
}