From 9ba4ed4da72a3d1bbec8920d93a547cf633cfacd Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Wed, 10 Nov 2021 15:50:10 +0100
Subject: [PATCH] smaller mask to hide glitches

This makes the mask slightly maller than the frame. Since the svg will have antialiasing and the mask not,
there will be artifacts at the corners, if they go under the svg they're less evident

CCBUG:438644
---
 src/plasmaquick/dialog.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/plasmaquick/dialog.cpp b/src/plasmaquick/dialog.cpp
index 3254b8320..6b3963303 100644
--- a/src/plasmaquick/dialog.cpp
+++ b/src/plasmaquick/dialog.cpp
@@ -237,14 +237,19 @@ void DialogPrivate::updateTheme()
             frameSvgItem->setImagePath(prefix + QStringLiteral("dialogs/background"));
         }
 
-        KWindowEffects::enableBlurBehind(q, theme.blurBehindEnabled(), frameSvgItem->mask());
+        // This makes the mask slightly maller than the frame. Since the svg will have antialiasing and the mask not,
+        // there will be artifacts at the corners, if they go under the svg they're less evident
+        frameSvgItem->frameSvg()->resizeFrame(q->size() - QSize(2,2));
+        const QRegion mask = frameSvgItem->frameSvg()->mask().translated(1,1);
+        KWindowEffects::enableBlurBehind(q, theme.blurBehindEnabled(), mask);
 
         KWindowEffects::enableBackgroundContrast(q,
                                                  theme.backgroundContrastEnabled(),
                                                  theme.backgroundContrast(),
                                                  theme.backgroundIntensity(),
                                                  theme.backgroundSaturation(),
-                                                 frameSvgItem->mask());
+                                                 mask);
+        frameSvgItem->frameSvg()->resizeFrame(q->size());
 
         if (KWindowSystem::compositingActive()) {
             if (hasMask) {
-- 
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