From fc14d085dd3d97dd7866eba67b5e09120fff90b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Minisini?= <gambas@users.sourceforge.net>
Date: Mon, 24 Nov 2008 20:32:32 +0000
Subject: [PATCH] [GB.QT.EXT] * BUG: Fix Editor margin width when showing line
 numbers.

git-svn-id: svn://localhost/gambas/trunk@1715 867c0c6c-44f3-4631-809d-bfa615b0a4ec
---
 gb.qt/src/ext/gview.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/gb.qt/src/ext/gview.cpp b/gb.qt/src/ext/gview.cpp
index eda4a7e33..ed6887966 100644
--- a/gb.qt/src/ext/gview.cpp
+++ b/gb.qt/src/ext/gview.cpp
@@ -1705,10 +1705,25 @@ bool GEditor::focusNextPrevChild(bool)
 	return false;
 }
 
+static bool is_power_of_ten(int n)
+{
+	for(;;)
+	{
+		if (n % 10)
+			return false;
+		n /= 10;
+		if (n == 1)
+			return true;
+	}
+}
+
 void GEditor::lineInserted(int y)
 {
 	if (largestLine >= y)
 		largestLine++;
+	
+	if (getFlag(ShowLineNumbers) && is_power_of_ten(numLines()))
+		updateMargin();
 }
 
 void GEditor::lineRemoved(int y)
@@ -1717,6 +1732,9 @@ void GEditor::lineRemoved(int y)
 		updateWidth(y);
 	else if (largestLine > y)
 		largestLine--;
+	
+	if (getFlag(ShowLineNumbers) && is_power_of_ten(numLines() + 1))
+		updateMargin();
 }
 
 void GEditor::flash()