From c876ccb5329dfb333ec5851532f65876348c569b Mon Sep 17 00:00:00 2001
From: Xi Yan
Date: Thu, 18 Oct 2018 16:33:31 -0400
Subject: Bug 540083 - [GTK3] Compare editor arrows broken on scroll

Send an extra redraw() in BufferedCanvas.repaint() on GTK if the compare
editor is scrolled. This is needed because GTK does not gaurantee that
what you draw directly on a windowing surface is going to be rendered on
screen.

Change-Id: I9dd960ab235037536b12b6d70ab187b9d5e161f3
Signed-off-by: Xi Yan <xixiyan@redhat.com>
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>---
 bundles/org.eclipse.compare/META-INF/MANIFEST.MF                      | 2 +-
 .../compare/org/eclipse/compare/internal/BufferedCanvas.java          | 4 ++++
 bundles/org.eclipse.compare/pom.xml                                   | 2 +-
 3 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'bundles')

diff --git a/bundles/org.eclipse.compare/META-INF/MANIFEST.MF b/bundles/org.eclipse.compare/META-INF/MANIFEST.MF
index 7c72097e4..21c34b9ad 100644
--- a/bundles/org.eclipse.compare/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.compare/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.compare; singleton:=true
-Bundle-Version: 3.7.300.qualifier
+Bundle-Version: 3.7.400.qualifier
 Bundle-Activator: org.eclipse.compare.internal.CompareUIPlugin
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
diff --git a/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/BufferedCanvas.java b/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/BufferedCanvas.java
index 10aa036b2..6bfeb59b3 100644
--- a/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/BufferedCanvas.java
+++ b/bundles/org.eclipse.compare/compare/org/eclipse/compare/internal/BufferedCanvas.java
@@ -13,6 +13,7 @@
  *******************************************************************************/
 package org.eclipse.compare.internal;
 
+import org.eclipse.jface.util.Util;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.widgets.Canvas;
@@ -51,6 +52,9 @@ public abstract class BufferedCanvas extends Canvas {
 			GC gc= new GC(this);
 			doubleBufferPaint(gc);
 			gc.dispose();
+			if (Util.isGtk()) {
+				redraw();
+			}
 		}
 	}
 
diff --git a/bundles/org.eclipse.compare/pom.xml b/bundles/org.eclipse.compare/pom.xml
index cac47240f..468a44841 100644
--- a/bundles/org.eclipse.compare/pom.xml
+++ b/bundles/org.eclipse.compare/pom.xml
@@ -19,6 +19,6 @@
   </parent>
   <groupId>org.eclipse.compare</groupId>
   <artifactId>org.eclipse.compare</artifactId>
-  <version>3.7.300-SNAPSHOT</version>
+  <version>3.7.400-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>
-- 
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