[LyX/master] GuiDelimiter: properly calculate widget width

[Juergen Spitzmueller]

commit 233cfed3331e2a8fef39e2dff483dadbf011b772
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sun Feb 7 17:24:59 2021 +0100

    GuiDelimiter: properly calculate widget width
---
 src/frontends/qt/GuiDelimiter.cpp |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/frontends/qt/GuiDelimiter.cpp b/src/frontends/qt/GuiDelimiter.cpp
index 5b23804..ca5911e 100644
--- a/src/frontends/qt/GuiDelimiter.cpp
+++ b/src/frontends/qt/GuiDelimiter.cpp
@@ -233,8 +233,13 @@ GuiDelimiter::GuiDelimiter(GuiView & lv)
 
 	QSize icon_size(32, 32);
 
-	leftLW->setMinimumWidth(5 * icon_size.width());
-	rightLW->setMinimumWidth(5 * icon_size.width());
+	// we calculate the appropriate width to fit 4 icons in a row
+	leftLW->setMinimumWidth((4 * (icon_size.width() + (2 * leftLW->spacing())))
+				+ (leftLW->frameWidth() * 2)
+				+ leftLW->verticalScrollBar()->height());
+	rightLW->setMinimumWidth((4 * (icon_size.width() + (2 * rightLW->spacing())))
+				 + (rightLW->frameWidth() * 2)
+				 + rightLW->verticalScrollBar()->height());
 	leftLW->setIconSize(icon_size);
 	rightLW->setIconSize(icon_size);