1 files changed, 56 insertions, 0 deletions
diff --git a/power_sequencer/operators/preview_to_selection.py b/power_sequencer/operators/preview_to_selection.py
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+++ b/power_sequencer/operators/preview_to_selection.py
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+#
+# 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 get_frame_range
+from .utils.functions import set_preview_range
+from .utils.doc import doc_name, doc_idname, doc_brief, doc_description
+
+
+class POWER_SEQUENCER_OT_preview_to_selection(bpy.types.Operator):
+    """
+    *brief* Sets the timeline preview range to match the selection
+
+    Sets the scene frame start to the earliest frame start of selected sequences and the scene
+    frame end to the last frame of selected sequences.
+    Uses all sequences in the current context if no sequences are selected.
+    """
+
+    doc = {
+        "name": doc_name(__qualname__),
+        "demo": "https://i.imgur.com/EV1sUrn.gif",
+        "description": doc_description(__doc__),
+        "shortcuts": [
+            ({"type": "P", "value": "PRESS", "ctrl": True, "alt": True}, {}, "Preview To Selection")
+        ],
+        "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.sequences
+
+    def execute(self, context):
+        scene = context.scene
+        sequences = context.selected_sequences if len(context.selected_sequences) >= 1 else context.sequences
+        frame_start, frame_end = get_frame_range(context, sequences)
+        set_preview_range(context, frame_start, frame_end - 1)
+        return {"FINISHED"}