From b486260559ca925983e76e230984b0b2fef67a1f Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Mon, 10 May 2021 16:12:42 +0400
Subject: [PATCH] Don't change cursor in fixed-size windows.

---
 ui/platform/ui_platform_window.cpp | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/ui/platform/ui_platform_window.cpp b/ui/platform/ui_platform_window.cpp
index 38921e2..c133d0c 100644
--- a/ui/platform/ui_platform_window.cpp
+++ b/ui/platform/ui_platform_window.cpp
@@ -239,28 +239,36 @@ QMargins DefaultWindowHelper::resizeArea() const {
 
 Qt::Edges DefaultWindowHelper::edgesFromPos(const QPoint &pos) const {
 	const auto area = resizeArea();
+	const auto ignoreHorizontal = (window()->minimumWidth()
+		== window()->maximumWidth());
+	const auto ignoreVertical = (window()->minimumHeight()
+		== window()->maximumHeight());
 
 	if (area.isNull()) {
 		return Qt::Edges();
-	} else if (pos.x() <= area.left()) {
-		if (pos.y() <= area.top()) {
+	} else if (!ignoreHorizontal && pos.x() <= area.left()) {
+		if (!ignoreVertical && pos.y() <= area.top()) {
 			return Qt::LeftEdge | Qt::TopEdge;
-		} else if (pos.y() >= (window()->height() - area.bottom())) {
+		} else if (!ignoreVertical
+			&& pos.y() >= (window()->height() - area.bottom())) {
 			return Qt::LeftEdge | Qt::BottomEdge;
 		}
 
 		return Qt::LeftEdge;
-	} else if (pos.x() >= (window()->width() - area.right())) {
-		if (pos.y() <= area.top()) {
+	} else if (!ignoreHorizontal
+		&& pos.x() >= (window()->width() - area.right())) {
+		if (!ignoreVertical && pos.y() <= area.top()) {
 			return Qt::RightEdge | Qt::TopEdge;
-		} else if (pos.y() >= (window()->height() - area.bottom())) {
+		} else if (!ignoreVertical
+			&& pos.y() >= (window()->height() - area.bottom())) {
 			return Qt::RightEdge | Qt::BottomEdge;
 		}
 
 		return Qt::RightEdge;
-	} else if (pos.y() <= area.top()) {
+	} else if (!ignoreVertical && pos.y() <= area.top()) {
 		return Qt::TopEdge;
-	} else if (pos.y() >= (window()->height() - area.bottom())) {
+	} else if (!ignoreVertical
+		&& pos.y() >= (window()->height() - area.bottom())) {
 		return Qt::BottomEdge;
 	}
 
@@ -389,7 +397,7 @@ void DefaultWindowHelper::updateCursor(Qt::Edges edges) {
 	} else if ((edges & Qt::TopEdge) || (edges & Qt::BottomEdge)) {
 		window()->setCursor(QCursor(Qt::SizeVerCursor));
 	} else {
-		window()->unsetCursor();
+		window()->setCursor(QCursor(Qt::ArrowCursor));
 	}
 }