A few changes to make the interface more flexible. It can now remove

tags including ID3v2.


git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib@334981 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

mpc/combinedtag.h

@@ -0,0 +1,171 @@
+/***************************************************************************
+    copyright            : (C) 2004 by Allan Sandfeld Jensen
+    email                : kde@carewolf.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it  under the terms of the GNU Lesser General Public License version  *
+ *   2.1 as published by the Free Software Foundation.                     *
+ *                                                                         *
+ *   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     *
+ *   Lesser General Public License for more details.                       *
+ *                                                                         *
+ *   You should have received a copy of the GNU Lesser General Public      *
+ *   License along with this library; if not, write to the Free Software   *
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
+ *   USA                                                                   *
+ ***************************************************************************/
+
+#ifndef DO_NOT_DOCUMENT // Tell Doxygen not to document this header
+
+#ifndef TAGLIB_COMBINEDTAG_H
+#define TAGLIB_COMBINEDTAG_H
+
+////////////////////////////////////////////////////////////////////////////////
+// Note that this header is not installed.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <tag.h>
+
+namespace TagLib {
+
+  /*!
+   * A union of two TagLib::Tags.
+   */
+  class CombinedTag : public TagLib::Tag
+  {
+  public:
+    CombinedTag(Tag *tag1 = 0, Tag *tag2 = 0)
+               : TagLib::Tag(),
+                 tag1(tag1), tag2(tag2) {}
+
+    virtual String title() const {
+      if(tag1 && !tag1->title().isEmpty())
+          return tag1->title();
+
+      if(tag2)
+          return tag2->title();
+
+      return String::null;
+    }
+
+    virtual String artist() const {
+      if(tag1 && !tag1->artist().isEmpty())
+          return tag1->artist();
+
+      if(tag2)
+          return tag2->artist();
+
+      return String::null;
+    }
+
+    virtual String album() const {
+      if(tag1 && !tag1->album().isEmpty())
+          return tag1->album();
+
+      if(tag2)
+          return tag2->album();
+
+      return String::null;
+    }
+
+    virtual String comment() const {
+      if(tag1 && !tag1->comment().isEmpty())
+          return tag1->comment();
+
+      if(tag2)
+          return tag2->comment();
+
+      return String::null;
+    }
+
+    virtual String genre() const {
+      if(tag1 && !tag1->genre().isEmpty())
+          return tag1->genre();
+
+      if(tag2)
+          return tag2->genre();
+
+      return String::null;
+    }
+
+    virtual uint year() const {
+      if(tag1 && tag1->year() > 0)
+          return tag1->year();
+
+      if(tag2)
+          return tag2->year();
+
+      return 0;
+    }
+
+    virtual uint track() const {
+      if(tag1 && tag1->track() > 0)
+          return tag1->track();
+
+      if(tag2)
+          return tag2->track();
+
+      return 0;
+    }
+
+    virtual void setTitle(const String &s) {
+      if(tag1)
+          tag1->setTitle(s);
+      if(tag2)
+          tag2->setTitle(s);
+    }
+
+    virtual void setArtist(const String &s) {
+      if(tag1)
+          tag1->setArtist(s);
+      if(tag2)
+          tag2->setArtist(s);
+    }
+
+    virtual void setAlbum(const String &s) {
+      if(tag1)
+          tag1->setAlbum(s);
+      if(tag2)
+          tag2->setAlbum(s);
+    }
+
+    virtual void setComment(const String &s) {
+      if(tag1)
+          tag1->setComment(s);
+      if(tag2)
+          tag2->setComment(s);
+    }
+
+    virtual void setGenre(const String &s) {
+      if(tag1)
+          tag1->setGenre(s);
+      if(tag2)
+          tag2->setGenre(s);
+    }
+
+    virtual void setYear(uint i) {
+      if(tag1)
+          tag1->setYear(i);
+      if(tag2)
+          tag2->setYear(i);
+    }
+
+    virtual void setTrack(uint i) {
+      if(tag1)
+          tag1->setTrack(i);
+      if(tag2)
+          tag2->setTrack(i);
+    }
+
+  private:
+      Tag *tag1;
+      Tag *tag2;
+  };
+}
+
+#endif
+#endif