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/****************************************************************************
**
** Copyright (c) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator
**
**
** GNU Free Documentation License
**
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of this
** file.
**
**
****************************************************************************/
// **********************************************************************
// NOTE: the sections are not ordered by their logical order to avoid
// reshuffling the file each time the index order changes (i.e., often).
// Run the fixnavi.pl script to adjust the links to the index order.
// **********************************************************************
/*!
\contentspage {Qt Creator Manual}
\previouspage creator-macros.html
\page creator-diff-editor.html
\nextpage creator-clang-codemodel.html
\title Comparing Files
You can use a diff editor from \QC to compare two text files. They can be
either versions of the same file or arbitrary files.
\image creator-diff-editor.png "Diff editor output in the Edit mode"
To compare files:
\list 1
\li Select \gui Tools > \gui Diff.
\li Select two files to compare.
\endlist
The differences are output in the \gui Edit mode. Color coding is used to
mark changed lines. By default, light red indicates lines that contain
removed text (painted a darker red) in the left pane and light green
indicates lines that contain added text (painted a darker green) in the
right pane.
To change the default colors, select \gui Tools > \gui Options >
\gui {Text Editor} > \gui {Font & Colors}. Create your own color scheme and
select new colors for the following options:
\list
\li \gui {Diff File Line} sets the color of the line that shows the
path and filename of the changed file.
\li \gui {Diff Context Line} sets the color of the line that shows
the number of hidden lines between changed lines.
\li \gui {Diff Source Line} sets the color of lines that contain removed
text.
\li \gui {Diff Source Character} sets the color that indicates removed
characters.
\li \gui {Diff Destination Line} sets the color of lines that contain
added text.
\li \gui {Diff Destination Character} sets the color that indicates
added characters.
\endlist
To only show text changes, select \gui {Ignore Whitespace}.
To expand the context for the changes, set the number of unchanged lines to
show in \gui {Context lines}. Set the value to -1 to show the whole file.
By default, the horizontal scroll bars in the left and right pane are
synchronized. To use them independently of each other, select the
\inlineimage qtcreator-synchronizefocus.png
(\gui {Synchronize Horizontal Scroll Bars}) button.
*/
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