Rename DiffEditorWidget -> SideBySideDiffEditorWidget

It's the preparation for the new UnifiedDiffEditorWidget

Change-Id: I018899017c7e711ea8b04d85f8298b0d73f1cbab
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>

src/plugins/diffeditor/sidebysidediffeditorwidget.h

@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef SIDEBYSIDEDIFFEDITORWIDGET_H
+#define SIDEBYSIDEDIFFEDITORWIDGET_H
+
+#include "diffeditor_global.h"
+#include "differ.h"
+#include "diffeditorcontroller.h"
+
+#include <QTextEdit>
+
+namespace TextEditor {
+class BaseTextEditorWidget;
+class FontSettings;
+}
+
+QT_BEGIN_NAMESPACE
+class QPlainTextEdit;
+class QSplitter;
+class QSyntaxHighlighter;
+class QTextCharFormat;
+QT_END_NAMESPACE
+
+
+
+namespace DiffEditor {
+
+class SideDiffEditorWidget;
+class TextLineData;
+class ChunkData;
+class FileData;
+
+class DIFFEDITOR_EXPORT SideBySideDiffEditorWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    SideBySideDiffEditorWidget(QWidget *parent = 0);
+    ~SideBySideDiffEditorWidget();
+
+    void setDiffEditorController(DiffEditorController *controller);
+    DiffEditorController *diffEditorController() const;
+
+    QTextCodec *codec() const;
+
+#ifdef WITH_TESTS
+    static void testAssemblyRows();
+#endif // WITH_TESTS
+
+private slots:
+    void clear(const QString &message = QString());
+    void setDiff(const QList<DiffEditorController::DiffFilesContents> &diffFileList, const QString &workingDirectory);
+
+    void setContextLinesNumber(int lines);
+    void setIgnoreWhitespaces(bool ignore);
+    void setCurrentDiffFileIndex(int diffFileIndex);
+
+    void setFontSettings(const TextEditor::FontSettings &fontSettings);
+    void slotLeftJumpToOriginalFileRequested(int diffFileIndex, int lineNumber, int columnNumber);
+    void slotRightJumpToOriginalFileRequested(int diffFileIndex, int lineNumber, int columnNumber);
+    void leftVSliderChanged();
+    void rightVSliderChanged();
+    void leftHSliderChanged();
+    void rightHSliderChanged();
+    void leftCursorPositionChanged();
+    void rightCursorPositionChanged();
+    void leftDocumentSizeChanged();
+    void rightDocumentSizeChanged();
+
+private:
+    class DiffList {
+    public:
+        DiffEditorController::DiffFileInfo leftFileInfo;
+        DiffEditorController::DiffFileInfo rightFileInfo;
+        QList<Diff> diffList;
+    };
+
+    void setDiff(const QList<DiffList> &diffList);
+    void handleWhitespaces(const QList<Diff> &input,
+                           QList<Diff> *leftOutput,
+                           QList<Diff> *rightOutput) const;
+    QList<QTextEdit::ExtraSelection> colorPositions(const QTextCharFormat &format,
+            QTextCursor &cursor,
+            const QMap<int, int> &positions) const;
+    void colorDiff(const QList<FileData> &fileDataList);
+    FileData calculateContextData(const ChunkData &originalData) const;
+    void showDiff();
+    void synchronizeFoldings(SideDiffEditorWidget *source, SideDiffEditorWidget *destination);
+    void jumpToOriginalFile(const QString &fileName, int lineNumber, int columnNumber);
+
+    DiffEditorController *m_controller;
+    SideDiffEditorWidget *m_leftEditor;
+    SideDiffEditorWidget *m_rightEditor;
+    QSplitter *m_splitter;
+
+    QList<DiffList> m_diffList; // list of original outputs from differ
+    QList<ChunkData> m_originalChunkData; // one big chunk for every file, ignoreWhitespace taken into account
+    QList<FileData> m_contextFileData; // ultimate data to be shown, contextLinesNumber taken into account
+
+    bool m_foldingBlocker;
+    QString m_source;
+
+    QTextCharFormat m_fileLineFormat;
+    QTextCharFormat m_chunkLineFormat;
+    QTextCharFormat m_leftLineFormat;
+    QTextCharFormat m_leftCharFormat;
+    QTextCharFormat m_rightLineFormat;
+    QTextCharFormat m_rightCharFormat;
+};
+
+} // namespace DiffEditor
+
+#endif // SIDEBYSIDEDIFFEDITORWIDGET_H