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+/* This file is part of the KDE project
+ Copyright (C) 2002 Harald Fernengel <harry@kdevelop.org>
+ Copyright (C) 2002 F@lk Brettschneider <falkbr@kdevelop.org>
+ Copyright (C) 2003 Roberto Raggi <roberto@kdevelop.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+#ifndef KDEVDIFFFRONTEND_H
+#define KDEVDIFFFRONTEND_H
+
+#include <kurl.h>
+#include <kdevplugin.h>
+
+/**
+@file kdevdifffrontend.h
+Diff frontend interface.
+*/
+
+/**
+KDevelop diff frontend interface.
+This is the abstract base class for plugins that want to display differencies between
+files.
+
+Instances that implement this interface are available through extension architecture:
+@code
+KDevDiffFrontend *df = extension<KDevDiffFrontend>("KDevelop/DiffFrontend");
+if (df) {
+ // do something
+} else {
+ // fail
+}
+@endcode
+@sa KDevPlugin::extension method documentation.
+*/
+class KDevDiffFrontend : public KDevPlugin
+{
+
+public:
+ /**Constructor.
+ @param info Important information about the plugin - plugin internal and generic
+ (GUI) name, description, a list of authors, etc. That information is used to show
+ plugin information in various places like "about application" dialog, plugin selector
+ dialog, etc. Plugin does not take ownership on info object, also its lifetime should
+ be equal to the lifetime of the plugin.
+ @param parent The parent object for the plugin. Parent object must implement @ref KDevApi
+ interface. Otherwise the plugin will not be constructed.
+ @param name The internal name which identifies the plugin.*/
+ KDevDiffFrontend( const KDevPluginInfo *info, QObject *parent=0, const char *name=0 )
+ :KDevPlugin(info, parent, name ? name : "KDevDiffFrontend") {}
+
+ /**Displays the patch.
+ @param diff A string which contains a patch in unified format.*/
+ virtual void showDiff( const QString& diff ) = 0;
+
+ /**Displays a patch file.
+ @param url An url of the patch file.*/
+ virtual void openURL( const KURL &url ) = 0;
+
+ /**Displays the difference between the two files.
+ @param url1 First file to compare.
+ @param url2 Second file to compare.*/
+ virtual void showDiff( const KURL &url1, const KURL &url2 ) = 0;
+
+};
+
+#endif