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diff --git a/mobile-widgets/qml/theme/Units.qml b/mobile-widgets/qml/theme/Units.qml
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+/*
+ *   Copyright 2015 Marco Martin <mart@kde.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License as
+ *   published by the Free Software Foundation; either version 2, or
+ *   (at your option) any later version.
+ *
+ *   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 Library General Public License for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+import QtQuick 2.5
+import QtQuick.Window 2.2
+
+//pragma Singleton
+
+
+QtObject {
+    id: units
+
+    /**
+     * The fundamental unit of space that should be used for sizes, expressed in pixels.
+     * Given the screen has an accurate DPI settings, it corresponds to a width of
+     * the capital letter M
+     */
+    property int gridUnit: fontMetrics.height
+
+    /**
+     * units.iconSizes provides access to platform-dependent icon sizing
+     *
+     * The icon sizes provided are normalized for different DPI, so icons
+     * will scale depending on the DPI.
+     *
+     * Icon sizes from KIconLoader, adjusted to devicePixelRatio:
+     * * small
+     * * smallMedium
+     * * medium
+     * * large
+     * * huge
+     * * enormous
+     *
+     * Not devicePixelRation-adjusted::
+     * * desktop
+     */
+    property QtObject iconSizes: QtObject {
+        property int small: 16 * devicePixelRatio
+        property int smallMedium: 22 * devicePixelRatio
+        property int medium: 32 * devicePixelRatio
+        property int large: 48 * devicePixelRatio
+        property int huge: 64 * devicePixelRatio
+        property int enormous: 128 * devicePixelRatio
+    }
+
+    /**
+     * units.smallSpacing is the amount of spacing that should be used around smaller UI elements,
+     * for example as spacing in Columns. Internally, this size depends on the size of
+     * the default font as rendered on the screen, so it takes user-configured font size and DPI
+     * into account.
+     */
+    property int smallSpacing: gridUnit/4
+
+    /**
+     * units.largeSpacing is the amount of spacing that should be used inside bigger UI elements,
+     * for example between an icon and the corresponding text. Internally, this size depends on
+     * the size of the default font as rendered on the screen, so it takes user-configured font
+     * size and DPI into account.
+     */
+    property int largeSpacing: gridUnit
+
+    /**
+     * The ratio between physical and device-independent pixels. This value does not depend on the \
+     * size of the configured font. If you want to take font sizes into account when scaling elements,
+     * use theme.mSize(theme.defaultFont), units.smallSpacing and units.largeSpacing.
+     * The devicePixelRatio follows the definition of "device independent pixel" by Microsoft.
+     */
+    property real devicePixelRatio: Screen.devicePixelRatio
+
+    /**
+     * units.longDuration should be used for longer, screen-covering animations, for opening and
+     * closing of dialogs and other "not too small" animations
+     */
+    property int longDuration: 250
+
+    /**
+     * units.shortDuration should be used for short animations, such as accentuating a UI event,
+     * hover events, etc..
+     */
+    property int shortDuration: 150
+
+    property QtObject fontMetrics: FontMetrics {}
+}