Modularized for Qt 5

Still missing sth from qmake, it doesn't support non c++ module
correctly yet(there is no CXX_MODULE in our project).

Change-Id: I9a6a754e863b51b3e3a4b1eaf864ddab24e92f75
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

1 files changed, 123 insertions, 0 deletions

diff --git a/src/qtdesktop/private/ScrollAreaHelper.qml b/src/qtdesktop/private/ScrollAreaHelper.qml
new file mode 100644
index 00000000..e99b3276
--- /dev/null
+++ b/src/qtdesktop/private/ScrollAreaHelper.qml
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Components project.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtDesktop 1.0
+
+WheelArea {
+    id: wheelarea
+
+    property alias horizontalScrollBar: hscrollbar
+    property alias verticalScrollBar: vscrollbar
+    property int macOffset: styleitem.style == "mac" ? 1 : 0
+    property bool blockUpdates: false
+    property int availableHeight : height - (hscrollbar.visible ? hscrollbar.height : 0)
+    property int availableWidth: width - vscrollbar.width
+
+    anchors.fill: parent
+    anchors.margins: frameWidth
+    horizontalMinimumValue: hscrollbar.minimumValue
+    horizontalMaximumValue: hscrollbar.maximumValue
+    verticalMinimumValue: vscrollbar.minimumValue
+    verticalMaximumValue: vscrollbar.maximumValue
+
+    onVerticalValueChanged: {
+        if (!blockUpdates)
+            verticalScrollBar.value = verticalValue
+    }
+
+    onHorizontalValueChanged: {
+        if (!blockUpdates)
+            horizontalScrollBar.value = horizontalValue
+    }
+
+    StyleItem {
+        // This is the filled corner between scrollbars
+        id: cornerFill
+        elementType: "scrollareacorner"
+        width: vscrollbar.width
+        anchors.right: parent.right
+        height: hscrollbar.height
+        anchors.bottom: parent.bottom
+        visible: hscrollbar.visible && vscrollbar.visible
+    }
+
+    ScrollBar {
+        id: hscrollbar
+        orientation: Qt.Horizontal
+        visible: contentWidth > availableWidth
+        maximumValue: contentWidth > availableWidth ? root.contentWidth - availableWidth : 0
+        minimumValue: 0
+        anchors.bottom: parent.bottom
+        anchors.leftMargin: parent.macOffset
+        anchors.bottomMargin: -parent.macOffset
+        anchors.left: parent.left
+        anchors.right: parent.right
+        anchors.rightMargin: vscrollbar.visible ? vscrollbar.width -parent.macOffset: 0
+        onValueChanged: {
+            if (!blockUpdates) {
+                contentX = value
+                horizontalValue = value
+            }
+        }
+    }
+
+    ScrollBar {
+        id: vscrollbar
+        orientation: Qt.Vertical
+        // We cannot bind directly to tree.height due to binding loops so we have to redo the calculation here
+        // visible: contentHeight > availableHeight
+        maximumValue: contentHeight > availableHeight ? root.contentHeight - availableHeight : 0
+        minimumValue: 0
+        anchors.right: parent.right
+        anchors.top: parent.top
+        anchors.bottom: parent.bottom
+        anchors.topMargin: 1//parent.macOffset
+        anchors.rightMargin: -parent.macOffset
+        anchors.bottomMargin: hscrollbar.visible ? hscrollbar.height - parent.macOffset :  0
+
+        onValueChanged: {
+            if (!blockUpdates) {
+                contentY = value
+                verticalValue = value
+            }
+        }
+    }
+}