From c45d12db1d474eb128b79e0049a8634aa42ef713 Mon Sep 17 00:00:00 2001
From: Armin <armin@cherry>
Date: Wed, 15 Jul 2026 23:53:34 +0200
Subject: [PATCH] Make pitch bend wheel drag start at center (0)

---
 Source/PluginEditor.cpp | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/Source/PluginEditor.cpp b/Source/PluginEditor.cpp
index dc126bd..b26109f 100644
--- a/Source/PluginEditor.cpp
+++ b/Source/PluginEditor.cpp
@@ -1332,9 +1332,14 @@ void PianoRollComponent::paint(juce::Graphics& g) {
 void PianoRollComponent::mouseDown(const juce::MouseEvent& e) {
     auto pos = e.getPosition();
 
-    // Pitch bend strip: ignore plain clicks — require a vertical drag (see mouseDrag)
+    // Pitch bend strip: begin a drag that starts from center (0 bend)
     if (pos.x < pitchBendWidth) {
-        pitchBendDragging = false;
+        pitchBendDragging = true;
+        pitchBendGliding = false;
+        pitchBendStartY = pos.y;
+        currentPitchBend = 64;
+        processor.pitchBendValue.store(0.0f);
+        repaint();
         return;
     }
 
@@ -1387,11 +1392,11 @@ void PianoRollComponent::timerCallback() {
 void PianoRollComponent::mouseDrag(const juce::MouseEvent& e) {
     auto pos = e.getPosition();
 
-    // Pitch bend drag — only while touching the strip
+    // Pitch bend drag — relative to where the drag started (starts at 0)
     if (pos.x < pitchBendWidth) {
         pitchBendDragging = true;
         pitchBendGliding = false;
-        float pbNorm = 1.0f - 2.0f * static_cast<float>(pos.y) / static_cast<float>(whiteKeyHeight);
+        float pbNorm = 2.0f * static_cast<float>(pitchBendStartY - pos.y) / static_cast<float>(whiteKeyHeight);
         pbNorm = std::clamp(pbNorm, -1.0f, 1.0f);
         currentPitchBend = 64 + static_cast<int>(pbNorm * 64.0f);
         processor.pitchBendValue.store(pbNorm);