From b11b345235436f664876b656e4b8c94a14444fbb Mon Sep 17 00:00:00 2001
From: Tanner Collin <git@tannercollin.com>
Date: Sun, 15 Feb 2026 11:11:39 -0700
Subject: [PATCH] fix: Prevent sketch overlap and improve plane selection
 visibility

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
---
 src/ApplicationController.cpp | 3 +++
 src/ViewportWidget.cpp        | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/src/ApplicationController.cpp b/src/ApplicationController.cpp
index 5255b65..0c113d5 100644
--- a/src/ApplicationController.cpp
+++ b/src/ApplicationController.cpp
@@ -102,6 +102,9 @@ bool ApplicationController::saveDocumentAs()
 
 void ApplicationController::beginSketchCreation()
 {
+    if (m_activeSketch) {
+        return;
+    }
     emit planeSelectionModeStarted();
 }
 
diff --git a/src/ViewportWidget.cpp b/src/ViewportWidget.cpp
index 6154ea8..cf897a9 100644
--- a/src/ViewportWidget.cpp
+++ b/src/ViewportWidget.cpp
@@ -489,6 +489,13 @@ void ViewportWidget::keyPressEvent(QKeyEvent *event)
             update();
             return;
         }
+        if (m_isSelectingPlane) {
+            m_isSelectingPlane = false;
+            m_highlightedPlane = SketchPlane::NONE;
+            m_currentPlane = SketchPlane::XY;
+            update();
+            return;
+        }
     }
     QOpenGLWidget::keyPressEvent(event);
 }
@@ -566,6 +573,7 @@ void ViewportWidget::onPlaneSelectionModeStarted()
 {
     m_isSelectingPlane = true;
     m_highlightedPlane = SketchPlane::NONE;
+    m_currentPlane = SketchPlane::NONE;
     update();
 }