Merge CppTools into CppEditor

There was no proper separation of responsibilities between these
plugins. In particular, CppTools had lots of editor-related
functionality, so it's not clear why it was separated out in the first
place.
In fact, for a lot of code, it seemed quite arbitrary where it was put
(just one example: switchHeaderSource() was in CppTools, wheras
switchDeclarationDefinition() was in CppEditor).
Merging the plugins will enable us to get rid of various convoluted
pseudo-abstractions that were only introduced to keep up the artificial
separation.

Change-Id: Iafc3bce625b4794f6d4aa03df6cddc7f2d26716a
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 74 insertions, 0 deletions

diff --git a/src/plugins/cppeditor/cpphoverhandler.cpp b/src/plugins/cppeditor/cpphoverhandler.cpp
new file mode 100644
index 0000000000..c197f6657b
--- /dev/null
+++ b/src/plugins/cppeditor/cpphoverhandler.cpp
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** 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 "cpphoverhandler.h"
+
+#include "cppelementevaluator.h"
+#include "cpptoolsreuse.h"
+
+#include <coreplugin/helpmanager.h>
+#include <texteditor/texteditor.h>
+
+#include <utils/textutils.h>
+#include <utils/executeondestruction.h>
+
+#include <QTextCursor>
+#include <QUrl>
+
+using namespace Core;
+using namespace TextEditor;
+
+namespace CppEditor {
+
+void CppHoverHandler::identifyMatch(TextEditorWidget *editorWidget, int pos, ReportPriority report)
+{
+    Utils::ExecuteOnDestruction reportPriority([this, report](){ report(priority()); });
+
+    QTextCursor tc(editorWidget->document());
+    tc.setPosition(pos);
+
+    CppElementEvaluator evaluator(editorWidget);
+    evaluator.setTextCursor(tc);
+    evaluator.execute();
+    QString tip;
+    if (evaluator.hasDiagnosis()) {
+        tip += evaluator.diagnosis();
+        setPriority(Priority_Diagnostic);
+    }
+    const QStringList fallback = identifierWordsUnderCursor(tc);
+    if (evaluator.identifiedCppElement()) {
+        const QSharedPointer<CppElement> &cppElement = evaluator.cppElement();
+        const QStringList candidates = cppElement->helpIdCandidates;
+        const HelpItem helpItem(candidates + fallback, cppElement->helpMark, cppElement->helpCategory);
+        setLastHelpItemIdentified(helpItem);
+        if (!helpItem.isValid())
+            tip += cppElement->tooltip;
+    } else {
+        setLastHelpItemIdentified({fallback, {}, HelpItem::Unknown});
+    }
+    setToolTip(tip);
+}
+
+} // namespace CppEditor