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diff --git a/src/quickcontrols2impl/qquickiconimage.cpp b/src/quickcontrols2impl/qquickiconimage.cpp
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+++ b/src/quickcontrols2impl/qquickiconimage.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickiconimage_p.h"
+#include "qquickiconimage_p_p.h"
+
+#include <QtCore/qmath.h>
+#include <QtQuick/private/qquickimagebase_p_p.h>
+
+QT_BEGIN_NAMESPACE
+
+bool QQuickIconImagePrivate::updateDevicePixelRatio(qreal targetDevicePixelRatio)
+{
+    if (isThemeIcon) {
+        devicePixelRatio = calculateDevicePixelRatio();
+        return true;
+    }
+
+    return QQuickImagePrivate::updateDevicePixelRatio(targetDevicePixelRatio);
+}
+
+void QQuickIconImagePrivate::updateIcon()
+{
+    Q_Q(QQuickIconImage);
+    // Both geometryChange() and QQuickImageBase::sourceSizeChanged()
+    // (which we connect to updateIcon() in the constructor) can be called as a result
+    // of updateIcon() changing the various sizes, so we must check that we're not recursing.
+    if (updatingIcon)
+        return;
+
+    updatingIcon = true;
+
+    QSize size = sourcesize;
+    // If no size is specified for theme icons, it will use the smallest available size.
+    if (size.width() <= 0)
+        size.setWidth(q->width());
+    if (size.height() <= 0)
+        size.setHeight(q->height());
+
+    const qreal dpr = calculateDevicePixelRatio();
+    const QIconLoaderEngineEntry *entry = QIconLoaderEngine::entryForSize(icon, size * dpr, qCeil(dpr));
+
+    if (entry) {
+        QQmlContext *context = qmlContext(q);
+        const QUrl entryUrl = QUrl::fromLocalFile(entry->filename);
+        url = context ? context->resolvedUrl(entryUrl) : entryUrl;
+        isThemeIcon = true;
+    } else {
+        url = source;
+        isThemeIcon = false;
+    }
+    q->load();
+
+    updatingIcon = false;
+}
+
+void QQuickIconImagePrivate::updateFillMode()
+{
+    Q_Q(QQuickIconImage);
+    // If we start with a sourceSize of 28x28 and then set sourceSize.width to 24, the fillMode
+    // will change to PreserveAspectFit (because pixmapSize.width() > width()), which causes the
+    // pixmap to be reloaded at its original size of 28x28, which causes the fillMode to change
+    // to Pad (because pixmapSize.width() <= width()), and so on.
+    if (updatingFillMode)
+        return;
+
+    updatingFillMode = true;
+
+    const QSize pixmapSize = QSize(pix.width(), pix.height()) / calculateDevicePixelRatio();
+    if (pixmapSize.width() > q->width() || pixmapSize.height() > q->height())
+        q->setFillMode(QQuickImage::PreserveAspectFit);
+    else
+        q->setFillMode(QQuickImage::Pad);
+
+    updatingFillMode = false;
+}
+
+qreal QQuickIconImagePrivate::calculateDevicePixelRatio() const
+{
+    Q_Q(const QQuickIconImage);
+    return q->window() ? q->window()->effectiveDevicePixelRatio() : qApp->devicePixelRatio();
+}
+
+QQuickIconImage::QQuickIconImage(QQuickItem *parent)
+    : QQuickImage(*(new QQuickIconImagePrivate), parent)
+{
+    setFillMode(Pad);
+}
+
+QString QQuickIconImage::name() const
+{
+    Q_D(const QQuickIconImage);
+    return d->icon.iconName;
+}
+
+void QQuickIconImage::setName(const QString &name)
+{
+    Q_D(QQuickIconImage);
+    if (d->icon.iconName == name)
+        return;
+
+    d->icon = QIconLoader::instance()->loadIcon(name);
+    if (isComponentComplete())
+        d->updateIcon();
+    emit nameChanged();
+}
+
+QColor QQuickIconImage::color() const
+{
+    Q_D(const QQuickIconImage);
+    return d->color;
+}
+
+void QQuickIconImage::setColor(const QColor &color)
+{
+    Q_D(QQuickIconImage);
+    if (d->color == color)
+        return;
+
+    d->color = color;
+    if (isComponentComplete())
+        d->updateIcon();
+    emit colorChanged();
+}
+
+void QQuickIconImage::setSource(const QUrl &source)
+{
+    Q_D(QQuickIconImage);
+    if (d->source == source)
+        return;
+
+    d->source = source;
+    if (isComponentComplete())
+        d->updateIcon();
+    emit sourceChanged(source);
+}
+
+void QQuickIconImage::componentComplete()
+{
+    Q_D(QQuickIconImage);
+    QQuickImage::componentComplete();
+    d->updateIcon();
+    QObjectPrivate::connect(this, &QQuickImageBase::sourceSizeChanged, d, &QQuickIconImagePrivate::updateIcon);
+}
+
+void QQuickIconImage::geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+    Q_D(QQuickIconImage);
+    QQuickImage::geometryChange(newGeometry, oldGeometry);
+    if (isComponentComplete() && newGeometry.size() != oldGeometry.size())
+        d->updateIcon();
+}
+
+void QQuickIconImage::itemChange(ItemChange change, const ItemChangeData &value)
+{
+    Q_D(QQuickIconImage);
+    if (change == ItemDevicePixelRatioHasChanged)
+        d->updateIcon();
+    QQuickImage::itemChange(change, value);
+}
+
+void QQuickIconImage::pixmapChange()
+{
+    Q_D(QQuickIconImage);
+    QQuickImage::pixmapChange();
+    d->updateFillMode();
+
+    // Don't apply the color if we're recursing (updateFillMode() can cause us to recurse).
+    if (!d->updatingFillMode && d->color.alpha() > 0) {
+        QImage image = d->pix.image();
+        if (!image.isNull()) {
+            QPainter painter(&image);
+            painter.setCompositionMode(QPainter::CompositionMode_SourceIn);
+            painter.fillRect(image.rect(), d->color);
+            d->pix.setImage(image);
+        }
+    }
+}
+
+QT_END_NAMESPACE