From a6a5c113ca40855b8bfac75d2a0527e379fcf0c6 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Fri, 12 Jun 2020 03:27:52 +1000
Subject: [PATCH] nodeinput: added convenience function for determining if a
 value is expected to change over time

---
 app/node/input.cpp | 5 +++++
 app/node/input.h   | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/app/node/input.cpp b/app/node/input.cpp
index 287d471ac..3ec99b36f 100644
--- a/app/node/input.cpp
+++ b/app/node/input.cpp
@@ -970,6 +970,11 @@ bool NodeInput::is_keyframable() const
   return keyframable_;
 }
 
+bool NodeInput::is_static() const
+{
+  return !(this->is_connected() || this->is_keyframing());
+}
+
 QVariant NodeInput::get_standard_value() const
 {
   return combine_track_values_into_normal_value(standard_value_);
diff --git a/app/node/input.h b/app/node/input.h
index c9e1b1d8d..4a6da4822 100644
--- a/app/node/input.h
+++ b/app/node/input.h
@@ -200,6 +200,13 @@ public:
    */
   bool is_keyframable() const;
 
+  /**
+   * @brief Returns whether the value that this input returns is always the same or is expected to change
+   *
+   * Equivalent to `!(is_connected() || is_keyframing())`
+   */
+  bool is_static() const;
+
   /**
    * @brief Get non-keyframed value
    */