--- /dev/null
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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 Nokia Corporation 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."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+var __columns = [];
+var __autoColumnWidth = 0;
+var __suppressLayoutUpdates = false;
+
+function initialize() {
+ // check the width requested by fixed width columns
+ var requestedWidth = 0;
+ var requestedCount = 0;
+ var invisibleCount = 0;
+ for (var i = 0; i < columns.length; i++) {
+ if (columns[i].visible) {
+ if (columns[i].width > 0 && !columns[i].privateIsAutoWidth) {
+ requestedWidth += columns[i].width;
+ requestedCount++;
+ }
+ } else {
+ invisibleCount++;
+ }
+ }
+
+ // allocate the rest to auto width columns
+ if ((columns.length - requestedCount - invisibleCount) > 0) {
+ __autoColumnWidth = Math.floor((parent.width - requestedWidth) / (columns.length - requestedCount - invisibleCount));
+ }
+
+ for (var i = 0; i < columns.length; i++) {
+ var comp = Qt.createComponent("TumblerTemplate.qml");
+ var newObj = comp.createObject(tumblerRow);
+ if (!columns[i].width || columns[i].privateIsAutoWidth) {
+ columns[i].width = __autoColumnWidth;
+ columns[i].privateIsAutoWidth = true;
+ }
+ if (columns[i].label) {
+ // enable label for the tumbler
+ internal.hasLabel = true;
+ }
+ newObj.height = root.height;
+ newObj.index = i;
+ newObj.tumblerColumn = columns[i];
+ newObj.widthChanged.connect(layout);
+ newObj.visibleChanged.connect(layout);
+ __columns.push(newObj);
+ }
+ privateTemplates = __columns;
+}
+
+function clear() {
+ var count = __columns.length;
+ for (var i = 0; i < count; i++) {
+ var tmp = __columns.pop();
+ tmp.destroy();
+ }
+}
+
+function forceUpdate() {
+ for (var i = 0; i < columns.length; i++) {
+ columns[i].selectedIndex = __columns[i].view.currentIndex;
+ }
+}
+
+function layout() {
+ if (__suppressLayoutUpdates) {
+ // guard against onWidthChanged triggering again during this process
+ return;
+ }
+ var requestedWidth = 0;
+ var requestedCount = 0;
+ var invisibleCount = 0;
+ for (var i = 0; i < columns.length; i++) {
+ if (columns[i].visible) {
+ var w = columns[i].width;
+ var a = columns[i].privateIsAutoWidth;
+ if (!a || (a && w != __autoColumnWidth)) {
+ requestedWidth += columns[i].width;
+ requestedCount++;
+ columns[i].privateIsAutoWidth = false;
+ } else {
+ columns[i].privateIsAutoWidth = true;
+ }
+ } else {
+ invisibleCount++;
+ }
+ }
+
+ if ((columns.length - requestedCount - invisibleCount) > 0) {
+ __autoColumnWidth = Math.floor((parent.width - requestedWidth) / (columns.length - requestedCount - invisibleCount));
+ }
+
+ // guard against onWidthChanged triggering again during this process
+ __suppressLayoutUpdates = true;
+ for (var i = 0; i < columns.length; i++) {
+ if (columns[i].privateIsAutoWidth) {
+ columns[i].width = __autoColumnWidth;
+ }
+ }
+ __suppressLayoutUpdates = false;
+}