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/****************************************************************************
**
** Copyright (C) 2013 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 DIFFEDITORWIDGET_H
#define DIFFEDITORWIDGET_H
#include "diffeditor_global.h"
#include "differ.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 DiffViewEditorWidget;
struct TextLineData;
struct ChunkData;
struct FileData;
class DIFFEDITOR_EXPORT DiffEditorWidget : public QWidget
{
Q_PROPERTY(QString source READ source WRITE setSource)
Q_OBJECT
public:
struct DiffFileInfo {
DiffFileInfo() {}
DiffFileInfo(const QString &file) : fileName(file) {}
DiffFileInfo(const QString &file, const QString &type) : fileName(file), typeInfo(type) {}
QString fileName;
QString typeInfo;
};
struct DiffFilesContents {
DiffFileInfo leftFileInfo;
QString leftText;
DiffFileInfo rightFileInfo;
QString rightText;
};
DiffEditorWidget(QWidget *parent = 0);
~DiffEditorWidget();
void clear();
void clear(const QString &message);
void setDiff(const QList<DiffFilesContents> &diffFileList, const QString &workingDirectory = QString());
QTextCodec *codec() const;
QString source() const;
void setSource(const QString &source);
#ifdef WITH_TESTS
void testAssemblyRows();
#endif // WITH_TESTS
public slots:
void setContextLinesNumber(int lines);
void setIgnoreWhitespaces(bool ignore);
void setHorizontalScrollBarSynchronization(bool on);
void navigateToDiffFile(int diffFileIndex);
signals:
void navigatedToDiffFile(int diffFileIndex);
protected:
TextEditor::BaseTextEditorWidget *leftEditor() const;
TextEditor::BaseTextEditorWidget *rightEditor() const;
private slots:
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:
struct DiffList {
DiffFileInfo leftFileInfo;
DiffFileInfo rightFileInfo;
QList<Diff> diffList;
};
void setDiff(const QList<DiffList> &diffList);
bool isWhitespace(const QChar &c) const;
bool isWhitespace(const Diff &diff) const;
bool isEqual(const QList<Diff> &diffList, int diffNumber) const;
QList<QTextEdit::ExtraSelection> colorPositions(const QTextCharFormat &format,
QTextCursor &cursor,
const QMap<int, int> &positions) const;
void colorDiff(const QList<FileData> &fileDataList);
QList<TextLineData> assemblyRows(const QStringList &lines,
const QMap<int, int> &lineSpans,
const QMap<int, int> &changedPositions,
QMap<int, int> *outputChangedPositions) const;
ChunkData calculateOriginalData(const QList<Diff> &diffList) const;
FileData calculateContextData(const ChunkData &originalData) const;
void showDiff();
void synchronizeFoldings(DiffViewEditorWidget *source, DiffViewEditorWidget *destination);
void jumpToOriginalFile(const QString &fileName, int lineNumber, int columnNumber);
DiffViewEditorWidget *m_leftEditor;
DiffViewEditorWidget *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, ignoreWhitespaces taken into account
QList<FileData> m_contextFileData; // ultimate data to be shown, contextLinesNumber taken into account
QString m_workingDirectory;
int m_contextLinesNumber;
bool m_ignoreWhitespaces;
bool m_syncScrollBars;
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 // DIFFEDITORWIDGET_H
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