Revert particle system and point cache removal in blender2.8 branch.

This reverts commit 5aa19be91263a249ffae75573e3b32f24269d890 and b4a721af694817fa921b119df83d33ede7d7fed0.

Due to postponement of particle system rewrite it was decided to put particle code
back into the 2.8 branch for the time being.

1 files changed, 74 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_particle.h b/source/blender/editors/include/ED_particle.h
new file mode 100644
index 00000000000..6cb8c0cfb19
--- /dev/null
+++ b/source/blender/editors/include/ED_particle.h
@@ -0,0 +1,74 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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.
+ *
+ * The Original Code is Copyright (C) 2007 by Janne Karhu.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file ED_particle.h
+ *  \ingroup editors
+ */
+
+#ifndef __ED_PARTICLE_H__
+#define __ED_PARTICLE_H__
+
+struct bContext;
+struct Object;
+struct ParticleEditSettings;
+struct rcti;
+struct PTCacheEdit;
+struct Scene;
+
+/* particle edit mode */
+void PE_free_ptcache_edit(struct PTCacheEdit *edit);
+int PE_start_edit(struct PTCacheEdit *edit);
+
+/* access */
+struct PTCacheEdit *PE_get_current(struct Scene *scene, struct Object *ob);
+struct PTCacheEdit *PE_create_current(struct Scene *scene, struct Object *ob);
+void PE_current_changed(struct Scene *scene, struct Object *ob);
+int PE_minmax(struct Scene *scene, float min[3], float max[3]);
+struct ParticleEditSettings *PE_settings(struct Scene *scene);
+
+/* update calls */
+void PE_hide_keys_time(struct Scene *scene, struct PTCacheEdit *edit, float cfra);
+void PE_update_object(struct Scene *scene, struct Object *ob, int useflag);
+
+/* selection tools */
+int PE_mouse_particles(struct bContext *C, const int mval[2], bool extend, bool deselect, bool toggle);
+int PE_border_select(struct bContext *C, struct rcti *rect, bool select, bool extend);
+int PE_circle_select(struct bContext *C, int selecting, const int mval[2], float rad);
+int PE_lasso_select(struct bContext *C, const int mcords[][2], const short moves, bool extend, bool select);
+void PE_deselect_all_visible(struct PTCacheEdit *edit);
+
+/* undo */
+void PE_undo_push(struct Scene *scene, const char *str);
+void PE_undo_step(struct Scene *scene, int step);
+void PE_undo(struct Scene *scene);
+void PE_redo(struct Scene *scene);
+bool PE_undo_is_valid(struct Scene *scene);
+void PE_undo_number(struct Scene *scene, int nr);
+const char *PE_undo_get_name(struct Scene *scene, int nr, bool *r_active);
+
+#endif /* __ED_PARTICLE_H__ */
+