From 035866f45bae0c8193b0f9e30a0898e5fd33ca10 Mon Sep 17 00:00:00 2001
From: Zufu Liu <unknown>
Date: Sat, 29 Sep 2018 08:00:50 +1000
Subject: Bug [#2047]. Avoid processing when SCI_SETZOOM to same value as
 before.

---
 src/Editor.cxx | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'src/Editor.cxx')

diff --git a/src/Editor.cxx b/src/Editor.cxx
index 3093e6c57..ab8f1dba3 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -7556,11 +7556,15 @@ sptr_t Editor::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 		InvalidateStyleRedraw();
 		break;
 
-	case SCI_SETZOOM:
-		vs.zoomLevel = static_cast<int>(wParam);
-		InvalidateStyleRedraw();
-		NotifyZoom();
-		break;
+	case SCI_SETZOOM: {
+			const int zoomLevel = static_cast<int>(wParam);
+			if (zoomLevel != vs.zoomLevel) {
+				vs.zoomLevel = zoomLevel;
+				InvalidateStyleRedraw();
+				NotifyZoom();
+			}
+			break;
+		}
 
 	case SCI_GETZOOM:
 		return vs.zoomLevel;
-- 
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