From 36e4071b7f15003b912e673f2fb345d38ae14645 Mon Sep 17 00:00:00 2001
From: Karl Tauber <karl@jformdesigner.com>
Date: Sun, 24 Mar 2024 17:29:57 +0100
Subject: [PATCH] FlatSVGIcon: use log level `CONFIG` instead of `SEVERE` and
 allow disabling logging (issue #823)

---
 CHANGELOG.md                                  |  2 ++
 .../formdev/flatlaf/extras/FlatSVGIcon.java   | 20 ++++++++++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8117ac9e8..4533b3b38 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ FlatLaf Change Log
   (issue 809)
 - Extras:
   - `FlatSVGIcon` color filters now support linear gradients. (PR #817)
+  - `FlatSVGIcon`: Use log level `CONFIG` instead of `SEVERE` and allow
+    disabling logging. (issue #823)
   - Added support for `JSplitPane.expandableSide` client property to
     `FlatSplitPane`.
 - Native libraries: Added API version check to test whether native library
diff --git a/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java b/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java
index 8b32455ad..35248d624 100644
--- a/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java
+++ b/flatlaf-extras/src/main/java/com/formdev/flatlaf/extras/FlatSVGIcon.java
@@ -63,6 +63,7 @@ public class FlatSVGIcon
 	extends ImageIcon
 	implements DisabledIconProvider
 {
+	private static boolean loggingEnabled = true;
 	private static boolean svgCacheEnabled = true;
 	// cache that uses soft references for values, which allows freeing SVG documents if no longer used
 	private static final SoftCache<String, SVGDocument> svgCache = new SoftCache<>();
@@ -273,7 +274,8 @@ public FlatSVGIcon( InputStream in ) throws IOException {
 
 			if( document == null ) {
 				loadFailed = true;
-				LoggingFacade.INSTANCE.logSevere( "FlatSVGIcon: failed to load SVG icon from input stream", null );
+				if( loggingEnabled )
+					LoggingFacade.INSTANCE.logConfig( "FlatSVGIcon: failed to load SVG icon from input stream", null );
 			}
 		}
 	}
@@ -477,7 +479,8 @@ private void update() {
 
 			if( url == null ) {
 				loadFailed = true;
-				LoggingFacade.INSTANCE.logConfig( "FlatSVGIcon: resource '" + name + "' not found (if using Java modules, check whether icon package is opened in module-info.java)", null );
+				if( loggingEnabled )
+					LoggingFacade.INSTANCE.logConfig( "FlatSVGIcon: resource '" + name + "' not found (if using Java modules, check whether icon package is opened in module-info.java)", null );
 				return;
 			}
 		}
@@ -508,7 +511,8 @@ private static SVGDocument loadSVGUncached( URL url ) {
 		SVGDocument document = svgLoader.load( url );
 
 		if( document == null ) {
-			LoggingFacade.INSTANCE.logSevere( "FlatSVGIcon: failed to load '" + url + "'", null );
+			if( loggingEnabled )
+				LoggingFacade.INSTANCE.logConfig( "FlatSVGIcon: failed to load '" + url + "'", null );
 			return null;
 		}
 
@@ -707,6 +711,16 @@ private static void lafChanged() {
 		darkLaf = FlatLaf.isLafDark();
 	}
 
+	/** @since 3.4.1 */
+	public static boolean isLoggingEnabled() {
+		return loggingEnabled;
+	}
+
+	/** @since 3.4.1 */
+	public static void setLoggingEnabled( boolean loggingEnabled ) {
+		FlatSVGIcon.loggingEnabled = loggingEnabled;
+	}
+
 	/** @since 3.4.1 */
 	public static boolean isSVGDocumentEnabled() {
 		return svgCacheEnabled;