Long live Qt!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#import <private/qcocoatoolbardelegate_mac_p.h>
+#ifdef QT_MAC_USE_COCOA
+#include <private/qmainwindowlayout_p.h>
+#include <private/qt_mac_p.h>
+#include <private/qcocoaview_mac_p.h>
+#include <private/qwidget_p.h>
+#include <qtoolbar.h>
+#include <qlayout.h>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+extern QWidgetPrivate *qt_widget_private(QWidget *widget);
+QT_END_NAMESPACE
+
+QT_FORWARD_DECLARE_CLASS(QMainWindowLayout);
+QT_FORWARD_DECLARE_CLASS(QToolBar);
+QT_FORWARD_DECLARE_CLASS(QCFString);
+
+@implementation QCocoaToolBarDelegate
+
+- (id)initWithMainWindowLayout:(QMainWindowLayout *)layout
+{
+    self = [super init];
+    if (self) {
+        mainWindowLayout = layout;
+    }
+    return self;
+}
+
+- (NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar *)toolbar
+{
+    Q_UNUSED(toolbar);
+    return [NSArray arrayWithObject:@"com.trolltech.qt.nstoolbar-qtoolbar"];
+}
+
+- (NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar *)toolbar
+{
+    return [self toolbarAllowedItemIdentifiers:toolbar];
+}
+
+- (void)toolbarDidRemoveItem:(NSNotification *)notification
+{
+    NSToolbarItem *item = [[notification userInfo] valueForKey:@"item"];
+    mainWindowLayout->unifiedToolbarHash.remove(item);
+    for (int i = 0; i < mainWindowLayout->toolbarItemsCopy.size(); ++i) {
+        if (mainWindowLayout->toolbarItemsCopy.at(i) == item) {
+            // I know about it, so release it.
+            mainWindowLayout->toolbarItemsCopy.removeAt(i);
+            mainWindowLayout->qtoolbarsInUnifiedToolbarList.removeAt(i);
+            [item release];
+            break;
+        }
+    }
+}
+
+- (NSToolbarItem *)toolbar:(NSToolbar *)nstoolbar itemForItemIdentifier:(NSString *)itemIdentifier
+    willBeInsertedIntoToolbar:(BOOL)flag
+{
+    Q_UNUSED(flag);
+    Q_UNUSED(nstoolbar);
+    QToolBar *tb = mainWindowLayout->cocoaItemIDToToolbarHash.value(QCFString::toQString(CFStringRef(itemIdentifier)));
+    NSToolbarItem *item = nil;
+    if (tb) {
+        item = [[NSToolbarItem alloc] initWithItemIdentifier:itemIdentifier];
+        mainWindowLayout->unifiedToolbarHash.insert(item, tb);
+    }
+    return item;
+}
+
+- (void)toolbarWillAddItem:(NSNotification *)notification
+{
+    NSToolbarItem *item = [[notification userInfo] valueForKey:@"item"];
+    QToolBar *tb = mainWindowLayout->cocoaItemIDToToolbarHash.value(QCFString::toQString(CFStringRef([item itemIdentifier])));
+    if (!tb)
+        return; // I can't really do anything about this.
+    [item retain];
+    [item setView:QT_PREPEND_NAMESPACE(qt_mac_nativeview_for)(tb)];
+
+    NSArray *items = [[qt_mac_window_for(mainWindowLayout->layoutState.mainWindow->window()) toolbar] items];
+    int someIndex = 0;
+    bool foundItem = false;
+    for (NSToolbarItem *i in items) {
+        if (i == item) {
+            foundItem = true;
+            break;
+        }
+        ++someIndex;
+    }
+    mainWindowLayout->toolbarItemsCopy.insert(someIndex, item);
+
+    // This is synchronization code that was needed in Carbon, but may not be needed anymore here.
+    QToolBar *toolbar = mainWindowLayout->unifiedToolbarHash.value(item);
+    if (toolbar) {
+        int toolbarIndex = mainWindowLayout->qtoolbarsInUnifiedToolbarList.indexOf(toolbar);
+        if (someIndex != toolbarIndex) {
+            // Dang, we must be out of sync, rebuild it from the "toolbarItemsCopy"
+            mainWindowLayout->qtoolbarsInUnifiedToolbarList.clear();
+            for (int i = 0; i < mainWindowLayout->toolbarItemsCopy.size(); ++i) {
+                // This will either append the correct toolbar or an
+                // null toolbar. This is fine because this list
+                // is really only kept to make sure that things are but in the right order.
+                mainWindowLayout->qtoolbarsInUnifiedToolbarList.append(
+                                  mainWindowLayout->unifiedToolbarHash.value(mainWindowLayout->
+                                                                        toolbarItemsCopy.at(i)));
+            }
+        }
+        toolbar->update();
+    }
+}
+
+@end
+#endif // QT_MAC_USE_COCOA