From c6a34a63c4568ec0e4c6e0c4c00c96cebc9a0f33 Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Wed, 23 Mar 2022 13:51:21 +0100
Subject: [PATCH] Hide non-automatable parameters

---
 src/wrapper/clap/wrapper.rs | 12 +++++++-----
 src/wrapper/vst3/wrapper.rs |  2 +-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/wrapper/clap/wrapper.rs b/src/wrapper/clap/wrapper.rs
index 25fd0bda..a57a1b25 100644
--- a/src/wrapper/clap/wrapper.rs
+++ b/src/wrapper/clap/wrapper.rs
@@ -31,7 +31,8 @@ use clap_sys::ext::note_ports::{
 };
 use clap_sys::ext::params::{
     clap_host_params, clap_param_info, clap_plugin_params, CLAP_EXT_PARAMS,
-    CLAP_PARAM_IS_AUTOMATABLE, CLAP_PARAM_IS_BYPASS, CLAP_PARAM_IS_STEPPED,
+    CLAP_PARAM_IS_AUTOMATABLE, CLAP_PARAM_IS_BYPASS, CLAP_PARAM_IS_HIDDEN, CLAP_PARAM_IS_READONLY,
+    CLAP_PARAM_IS_STEPPED,
 };
 use clap_sys::ext::state::{clap_plugin_state, CLAP_EXT_STATE};
 use clap_sys::ext::tail::{clap_plugin_tail, CLAP_EXT_TAIL};
@@ -1744,10 +1745,11 @@ impl<P: ClapPlugin> Wrapper<P> {
             let automatable = !param_ptr.flags().contains(ParamFlags::NON_AUTOMATABLE);
 
             param_info.id = *param_hash;
-            param_info.flags = 0;
-            if automatable {
-                param_info.flags |= CLAP_PARAM_IS_AUTOMATABLE
-            }
+            param_info.flags = if automatable {
+                CLAP_PARAM_IS_AUTOMATABLE
+            } else {
+                CLAP_PARAM_IS_HIDDEN | CLAP_PARAM_IS_READONLY
+            };
             if step_count.is_some() {
                 param_info.flags |= CLAP_PARAM_IS_STEPPED
             }
diff --git a/src/wrapper/vst3/wrapper.rs b/src/wrapper/vst3/wrapper.rs
index 8f0f5a1d..4b8d6d4f 100644
--- a/src/wrapper/vst3/wrapper.rs
+++ b/src/wrapper/vst3/wrapper.rs
@@ -355,7 +355,7 @@ impl<P: Vst3Plugin> IEditController for Wrapper<P> {
             info.flags = if automatable {
                 vst3_sys::vst::ParameterFlags::kCanAutomate as i32
             } else {
-                vst3_sys::vst::ParameterFlags::kNoFlags as i32
+                vst3_sys::vst::ParameterFlags::kIsReadOnly as i32 | (1 << 4) // kIsHidden
             };
         }