Add the VSE addon Power Sequencer

1 files changed, 72 insertions, 0 deletions

diff --git a/power_sequencer/operators/utils/info_progress_bar.py b/power_sequencer/operators/utils/info_progress_bar.py
new file mode 100644
index 00000000..a3049bf5
--- /dev/null
+++ b/power_sequencer/operators/utils/info_progress_bar.py
@@ -0,0 +1,72 @@
+#
+# 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
+import time
+
+
+class InfoProgressBar:
+    """
+    Draws a progress bar in the info header area
+    """
+
+    def __init__(self, progress_min=0, progress_max=100):
+        assert progress_min < progress_max
+
+        self.progress_min = progress_min
+        self.progress_max = progress_max
+
+        self._progress = bpy.props.FloatProperty(
+            default=self.progress_min,
+            min=self.progress_min,
+            max=self.progress_max,
+            subtype="PERCENTAGE",
+        )
+        self._visible = False
+
+    def update(self, context):
+        for area in context.screen.areas:
+            if area.type == "INFO":
+                area.tag_redraw()
+
+    def draw(self):
+        if self.progress >= self.progress_max:
+            self.visible = False
+        else:
+            self.layout.prop(self, "_progress", text="Progress", slider=True)
+
+    @property
+    def progress(self):
+        return self._progress
+
+    @progress.setter
+    def progress(self, value):
+        self._progress = min(max(self.progress_min, value), self.progress_max)
+
+    @property
+    def visible(self):
+        return self._visible
+
+    @visible.setter
+    def visible(self, value):
+        self._visible = value
+
+        if self._visible:
+            bpy.types.INFO_HT_header.append(self.draw)
+            bpy.app.handlers.scene_update_post.add(self.update)
+        else:
+            bpy.types.INFO_HT_header.remove(self.draw)
+            bpy.app.handlers.scene_update_post.remove(self.update)