New QmlDesigner plugin & Design mode

This adds a new "Design" mode that can be used to manipulate qml files
in a visual way. It will only get build if you have the declarativeui
module in Qt.

This is a squashed import from the Bauhaus project. Share & enjoy :)

src/plugins/qmldesigner/components/integration/designdocumentcontrollerview.cpp

@@ -0,0 +1,137 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "designdocumentcontrollerview.h"
+#include <rewriterview.h>
+#include <plaintexteditmodifier.h>
+
+#include <QApplication>
+#include <QPlainTextEdit>
+#include <QClipboard>
+#include <QDebug>
+
+namespace QmlDesigner {
+
+void DesignDocumentControllerView::nodeCreated(const ModelNode & /*createdNode*/) {};
+void DesignDocumentControllerView::nodeAboutToBeRemoved(const ModelNode & /*removedNode*/) {};
+void DesignDocumentControllerView::nodeRemoved(const ModelNode & /*removedNode*/, const NodeAbstractProperty & /*parentProperty*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {};
+void DesignDocumentControllerView::nodeReparented(const ModelNode & /*node*/, const NodeAbstractProperty & /*newPropertyParent*/, const NodeAbstractProperty & /*oldPropertyParent*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {};
+void DesignDocumentControllerView::nodeIdChanged(const ModelNode& /*node*/, const QString& /*newId*/, const QString& /*oldId*/) {};
+void DesignDocumentControllerView::propertiesAboutToBeRemoved(const QList<AbstractProperty>& /*propertyList*/) {};
+void DesignDocumentControllerView::propertiesRemoved(const QList<AbstractProperty>& /*propertyList*/) {};
+void DesignDocumentControllerView::variantPropertiesChanged(const QList<VariantProperty>& /*propertyList*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {};
+void DesignDocumentControllerView::bindingPropertiesChanged(const QList<BindingProperty>& /*propertyList*/, AbstractView::PropertyChangeFlags /*propertyChange*/) {};
+void DesignDocumentControllerView::nodeTypeChanged(const ModelNode & /*node*/,const QString & /*type*/, int /*majorVersion*/, int /*minorVersion*/) {};
+
+void DesignDocumentControllerView::selectedNodesChanged(const QList<ModelNode> & /*selectedNodeList*/,
+                          const QList<ModelNode> & /*lastSelectedNodeList*/) {};
+
+void DesignDocumentControllerView::nodeSlidedToIndex(const NodeListProperty & /*listProperty*/, int /*newIndex*/, int /*oldIndex*/) {};
+
+static QStringList arrayToStringList(const QByteArray &byteArray)
+{
+    QString str(QString::fromLatin1(byteArray));
+    return str.split("\n");
+}
+
+static QByteArray stringListToArray(const QStringList &stringList)
+{
+    QString str;
+    foreach (const QString &subString, stringList)
+        str += subString + "\n";
+    return str.toLatin1();
+}
+
+void DesignDocumentControllerView::toClipboard() const
+{
+    QClipboard *clipboard = QApplication::clipboard();
+
+    QMimeData *data = new QMimeData;
+
+    data->setText(toText());
+    QStringList imports;
+    foreach (const Import &import, model()->imports())
+        imports.append(import.toString());
+
+    data->setData("QmlDesigner::imports", stringListToArray(imports));
+    clipboard->setMimeData(data);
+}
+
+void DesignDocumentControllerView::fromClipboard()
+{
+    QClipboard *clipboard = QApplication::clipboard();
+    fromText(clipboard->text());
+    QStringList imports = arrayToStringList(clipboard->mimeData()->data("QmlDesigner::imports"));
+//    foreach (const QString &importString, imports) {
+//        Import import(Import::createLibraryImport();
+//        model()->addImport(import); //### imports
+//    }
+}
+
+
+QString DesignDocumentControllerView::toText() const
+{
+    QScopedPointer<Model> model(Model::create("Qt/Rectangle"));
+    QPlainTextEdit textEdit;
+    textEdit.setPlainText("import Qt 4.6; Item {}");
+    PlainTextEditModifier modifier(&textEdit);
+
+    QScopedPointer<RewriterView> rewriterView(new RewriterView(RewriterView::Amend, 0));
+    rewriterView->setTextModifier(&modifier);
+    model->attachView(rewriterView.data());
+
+    ModelMerger merger(rewriterView.data());
+
+    merger.replaceModel(rootModelNode());
+
+    ModelNode rewriterNode(rewriterView->rootModelNode());
+
+    //get the text of the root item without imports
+    return rewriterView->extractText(QList<ModelNode>() << rewriterNode).value(rewriterNode);
+}
+
+void DesignDocumentControllerView::fromText(QString text)
+{
+    QScopedPointer<Model> model(Model::create("Qt/Rectangle"));
+    QPlainTextEdit textEdit;
+    QString imports("import Qt 4.6;\n");
+    textEdit.setPlainText(imports + text);
+    PlainTextEditModifier modifier(&textEdit);
+
+    QScopedPointer<RewriterView> rewriterView(new RewriterView(RewriterView::Amend, 0));
+    rewriterView->setTextModifier(&modifier);
+    model->attachView(rewriterView.data());
+
+    if (rewriterView->errors().isEmpty() && rewriterView->rootModelNode().isValid()) {
+        ModelMerger merger(this);
+        merger.replaceModel(rewriterView->rootModelNode());
+    }
+}
+
+}// namespace QmlDesigner