From a176f0bf35a3e855f269d6349ebce37252746f94 Mon Sep 17 00:00:00 2001
From: Mayeul Cantan <oss+nheko@mayeul.net>
Date: Fri, 21 Aug 2020 21:17:35 +0200
Subject: [PATCH 1/4] Smooth Avatars in timeline

This helps on low-dpi screens, getting rid of the jaggies.
---
 resources/qml/Avatar.qml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/resources/qml/Avatar.qml b/resources/qml/Avatar.qml
index 34b029a6..4adff572 100644
--- a/resources/qml/Avatar.qml
+++ b/resources/qml/Avatar.qml
@@ -33,7 +33,7 @@ Rectangle {
         asynchronous: true
         fillMode: Image.PreserveAspectCrop
         mipmap: true
-        smooth: false
+        smooth: true
         sourceSize.width: avatar.width
         sourceSize.height: avatar.height
         layer.enabled: true

From 2c542c398a79ed0091b8bffae0fde131363df01e Mon Sep 17 00:00:00 2001
From: Mayeul Cantan <oss+nheko@mayeul.net>
Date: Fri, 21 Aug 2020 21:46:42 +0200
Subject: [PATCH 2/4] Smooth pictures in timeline

---
 resources/qml/delegates/ImageMessage.qml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/resources/qml/delegates/ImageMessage.qml b/resources/qml/delegates/ImageMessage.qml
index 5c3dac95..e8e325f0 100644
--- a/resources/qml/delegates/ImageMessage.qml
+++ b/resources/qml/delegates/ImageMessage.qml
@@ -29,6 +29,8 @@ Item {
         source: model.data.url.replace("mxc://", "image://MxcImage/")
         asynchronous: true
         fillMode: Image.PreserveAspectFit
+        smooth: true
+        mipmap: true
 
         MouseArea {
             id: mouseArea

From 6219604ff8295dd1383648c953c791f9985db1e6 Mon Sep 17 00:00:00 2001
From: Mayeul Cantan <oss+nheko@mayeul.net>
Date: Sun, 1 Nov 2020 02:47:03 +0100
Subject: [PATCH 3/4] Smooth avatars in widgets

---
 src/ui/Avatar.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ui/Avatar.cpp b/src/ui/Avatar.cpp
index 70ebfcf2..0d1bb924 100644
--- a/src/ui/Avatar.cpp
+++ b/src/ui/Avatar.cpp
@@ -121,7 +121,9 @@ Avatar::paintEvent(QPaintEvent *)
         bool rounded = QSettings().value("user/avatar_circles", true).toBool();
 
         QPainter painter(this);
-        painter.setRenderHint(QPainter::Antialiasing);
+
+        painter.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform |
+                               QPainter::TextAntialiasing);
 
         QRectF r     = rect();
         const int hs = size_ / 2;

From 5f086cd93d5a84f41b1157109ac0936a8de3bdec Mon Sep 17 00:00:00 2001
From: Mayeul Cantan <oss+nheko@mayeul.net>
Date: Sun, 1 Nov 2020 02:47:47 +0100
Subject: [PATCH 4/4] Simplify PainterHighQualityEnabler code

There is no need to iterate over a list, flags can be applied and stored
simultaneously.
---
 src/ui/Painter.h | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/src/ui/Painter.h b/src/ui/Painter.h
index 2bb0981b..c69dca95 100644
--- a/src/ui/Painter.h
+++ b/src/ui/Painter.h
@@ -139,18 +139,10 @@ public:
         PainterHighQualityEnabler(Painter &p)
           : _painter(p)
         {
-                static constexpr QPainter::RenderHint Hints[] = {QPainter::Antialiasing,
-                                                                 QPainter::SmoothPixmapTransform,
-                                                                 QPainter::TextAntialiasing};
+                hints_ = QPainter::Antialiasing | QPainter::SmoothPixmapTransform |
+                         QPainter::TextAntialiasing;
 
-                auto hints = _painter.renderHints();
-                for (const auto &hint : Hints) {
-                        if (!(hints & hint))
-                                hints_ |= hint;
-                }
-
-                if (hints_)
-                        _painter.setRenderHints(hints_);
+                _painter.setRenderHints(hints_);
         }
 
         ~PainterHighQualityEnabler()