1 files changed, 69 insertions, 0 deletions
diff --git a/power_sequencer/operators/markers_set_preview_in_between.py b/power_sequencer/operators/markers_set_preview_in_between.py
new file mode 100644
index 00000000..f505c278
--- /dev/null
+++ b/power_sequencer/operators/markers_set_preview_in_between.py
@@ -0,0 +1,69 @@
+#
+# Copyright (C) 2016-2019 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
+#
+# This file is part of Power Sequencer.
+#
+# Power Sequencer 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 3 of the
+# License, or (at your option) any later version.
+#
+# Power Sequencer 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 Power Sequencer. If
+# not, see <https://www.gnu.org/licenses/>.
+#
+import bpy
+
+from .utils.functions import find_neighboring_markers
+from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
+
+
+class POWER_SEQUENCER_OT_set_preview_between_markers(bpy.types.Operator):
+    """
+    Set the timeline's preview range using the 2 markers closest to the time cursor
+    """
+
+    doc = {
+        "name": doc_name(__qualname__),
+        "demo": "",
+        "description": doc_description(__doc__),
+        "shortcuts": [],
+        "keymap": "Sequencer",
+    }
+    bl_idname = doc_idname(__qualname__)
+    bl_label = doc["name"]
+    bl_description = doc_brief(doc["description"])
+    bl_options = {"REGISTER", "UNDO"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.scene.sequence_editor
+
+    def invoke(self, context, event):
+        if not context.scene.timeline_markers:
+            self.report({"ERROR_INVALID_INPUT"}, "There are no markers. Operation cancelled.")
+            return {"CANCELLED"}
+
+        frame = context.scene.frame_current
+        previous_marker, next_marker = find_neighboring_markers(context, frame)
+
+        if not (previous_marker and next_marker):
+            self.report({"ERROR_INVALID_INPUT"}, "There are no markers. Operation cancelled.")
+            return {"CANCELLED"}
+
+        frame_start = previous_marker.frame if previous_marker else 0
+        if next_marker:
+            frame_end = next_marker.frame
+        else:
+            from operator import attrgetter
+
+            frame_end = max(
+                context.scene.sequence_editor.sequences, key=attrgetter("frame_final_end")
+            ).frame_final_end
+
+        from .utils.functions import set_preview_range
+
+        set_preview_range(context, frame_start, frame_end)
+        return {"FINISHED"}