Cleanup: move Alembic, AVI, Collada, and USD to `source/blender/io`

This moves the `alembic`, `avi`, `collada`, and `usd` modules into a common
`io` directory.

This also cleans up some `#include "../../{somedir}/{somefile}.h"` by
adding `../../io/{somedir}` to `CMakeLists.txt` and then just using
`#include "{somefile}.h"`.

No functional changes.

1 files changed, 83 insertions, 0 deletions

diff --git a/source/blender/io/collada/ExtraHandler.h b/source/blender/io/collada/ExtraHandler.h
new file mode 100644
index 00000000000..021eb8e9663
--- /dev/null
+++ b/source/blender/io/collada/ExtraHandler.h
@@ -0,0 +1,83 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup collada
+ */
+
+#ifndef __EXTRAHANDLER_H__
+#define __EXTRAHANDLER_H__
+
+#include <string>
+#include <map>
+#include <vector>
+#include <algorithm>  // sort()
+
+#include "COLLADASaxFWLIExtraDataCallbackHandler.h"
+#include "COLLADASaxFWLFilePartLoader.h"
+#include "COLLADASWInstanceController.h"
+
+#include "DocumentImporter.h"
+#include "AnimationImporter.h"
+
+/** \brief Handler class for \<extra\> data, through which different
+ * profiles can be handled
+ */
+class ExtraHandler : public COLLADASaxFWL::IExtraDataCallbackHandler {
+ public:
+  /** Constructor. */
+  ExtraHandler(DocumentImporter *dimp, AnimationImporter *aimp);
+
+  /** Destructor. */
+  virtual ~ExtraHandler();
+
+  /** Handle the beginning of an element. */
+  bool elementBegin(const char *elementName, const char **attributes);
+
+  /** Handle the end of an element. */
+  bool elementEnd(const char *elementName);
+
+  /** Receive the data in text format. */
+  bool textData(const char *text, size_t textLength);
+
+  /** Method to ask, if the current callback handler want to read the data of the given extra
+   * element. */
+  bool parseElement(const char *profileName,
+                    const unsigned long &elementHash,
+                    const COLLADAFW::UniqueId &uniqueId,
+                    COLLADAFW::Object *object);
+
+  /** For backwards compatibility with older OpenCollada, new version added object parameter */
+  bool parseElement(const char *profileName,
+                    const unsigned long &elementHash,
+                    const COLLADAFW::UniqueId &uniqueId);
+
+ private:
+  /** Disable default copy constructor. */
+  ExtraHandler(const ExtraHandler &pre);
+  /** Disable default assignment operator. */
+  const ExtraHandler &operator=(const ExtraHandler &pre);
+
+  /** Handle to DocumentImporter for interface to extra element data saving. */
+  DocumentImporter *dimp;
+  AnimationImporter *aimp;
+  /** Holds Id of element for which <extra> XML elements are handled. */
+  COLLADAFW::UniqueId currentUid;
+  ExtraTags *currentExtraTags;
+  std::string currentElement;
+};
+
+#endif /* __EXTRAHANDLER_H__ */