ScxmlEditor: Initial import

Change-Id: I4701b77ebd4e2520f2616c42206ac17be3a12b60
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

src/plugins/scxmleditor/scxmleditorstack.cpp

@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "scxmleditorstack.h"
+#include "scxmleditordocument.h"
+#include "scxmltexteditor.h"
+
+#include <coreplugin/coreconstants.h>
+#include <coreplugin/imode.h>
+#include <coreplugin/modemanager.h>
+
+#include <utils/qtcassert.h>
+
+using namespace ScxmlEditor;
+using namespace ScxmlEditor::Internal;
+
+ScxmlEditorStack::ScxmlEditorStack(QWidget *parent)
+    : QStackedWidget(parent)
+{
+    setObjectName("ScxmlEditorStack");
+}
+
+void ScxmlEditorStack::add(ScxmlTextEditor *editor, QWidget *w)
+{
+    connect(Core::ModeManager::instance(), &Core::ModeManager::currentModeAboutToChange,
+            this, &ScxmlEditorStack::modeAboutToChange);
+
+    m_editors.append(editor);
+    addWidget(w);
+    connect(editor, &ScxmlTextEditor::destroyed,
+            this, &ScxmlEditorStack::removeScxmlTextEditor);
+}
+
+void ScxmlEditorStack::removeScxmlTextEditor(QObject *xmlEditor)
+{
+    const int i = m_editors.indexOf(static_cast<ScxmlTextEditor*>(xmlEditor));
+    QTC_ASSERT(i >= 0, return);
+
+    QWidget *widget = this->widget(i);
+    if (widget) {
+        removeWidget(widget);
+        widget->deleteLater();
+    }
+    m_editors.removeAt(i);
+}
+
+bool ScxmlEditorStack::setVisibleEditor(Core::IEditor *xmlEditor)
+{
+    const int i = m_editors.indexOf(static_cast<ScxmlTextEditor*>(xmlEditor));
+    QTC_ASSERT(i >= 0, return false);
+
+    if (i != currentIndex())
+        setCurrentIndex(i);
+
+    return true;
+}
+
+QWidget *ScxmlEditorStack::widgetForEditor(ScxmlTextEditor *xmlEditor)
+{
+    const int i = m_editors.indexOf(xmlEditor);
+    QTC_ASSERT(i >= 0, return nullptr);
+
+    return widget(i);
+}
+
+void ScxmlEditorStack::modeAboutToChange(Core::Id m)
+{
+    // Sync the editor when entering edit mode
+    if (m == Core::Constants::MODE_EDIT) {
+        for (const ScxmlTextEditor *editor: m_editors)
+            if (ScxmlEditorDocument *document = qobject_cast<ScxmlEditorDocument*>(editor->textDocument()))
+                document->syncXmlFromDesignWidget();
+    }
+}