Move QmlConsole to Debugger

Now it is closer to its only user and possibly reusable for no-QML uses
there.  We also drop the QML/JS syntax checker. The application being
debugged can already tell us about syntax errors. There is no need to
duplicate that functionality.

Change-Id: I2ba151f9f4c854c6119ba5462c21be40bddcebf9
Reviewed-by: Ulf Hermann <ulf.hermann@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/debugger/console/consoleitemmodel.cpp

@@ -0,0 +1,106 @@
+/**************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "consoleitemmodel.h"
+
+#include <QFontMetrics>
+#include <QFont>
+
+namespace Debugger {
+namespace Internal {
+
+///////////////////////////////////////////////////////////////////////
+//
+// ConsoleItemModel
+//
+///////////////////////////////////////////////////////////////////////
+
+ConsoleItemModel::ConsoleItemModel(QObject *parent) :
+    Utils::TreeModel(new ConsoleItem, parent),
+    m_maxSizeOfFileName(0)
+{
+    clear();
+}
+
+void ConsoleItemModel::clear()
+{
+    Utils::TreeModel::clear();
+    appendItem(new ConsoleItem(ConsoleItem::InputType));
+    emit selectEditableRow(index(0, 0, QModelIndex()), QItemSelectionModel::ClearAndSelect);
+}
+
+void ConsoleItemModel::appendItem(ConsoleItem *item, int position)
+{
+    if (position < 0)
+        position = rootItem()->childCount() - 1; // append before editable row
+
+    if (position < 0)
+        position = 0;
+
+    rootItem()->insertChild(position, item);
+}
+
+void ConsoleItemModel::shiftEditableRow()
+{
+    int position = rootItem()->childCount();
+    Q_ASSERT(position > 0);
+
+    // Disable editing for old editable row
+    rootItem()->lastChild()->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
+
+    appendItem(new ConsoleItem(ConsoleItem::InputType), position);
+    emit selectEditableRow(index(position, 0, QModelIndex()), QItemSelectionModel::ClearAndSelect);
+}
+
+int ConsoleItemModel::sizeOfFile(const QFont &font)
+{
+    int lastReadOnlyRow = rootItem()->childCount();
+    lastReadOnlyRow -= 2; // skip editable row
+    if (lastReadOnlyRow < 0)
+        return 0;
+    QString filename = static_cast<ConsoleItem *>(rootItem()->child(lastReadOnlyRow))->file();
+    const int pos = filename.lastIndexOf(QLatin1Char('/'));
+    if (pos != -1)
+        filename = filename.mid(pos + 1);
+
+    QFontMetrics fm(font);
+    m_maxSizeOfFileName = qMax(m_maxSizeOfFileName, fm.width(filename));
+
+    return m_maxSizeOfFileName;
+}
+
+int ConsoleItemModel::sizeOfLineNumber(const QFont &font)
+{
+    QFontMetrics fm(font);
+    return fm.width(QLatin1String("88888"));
+}
+
+} // Internal
+} // Debugger