From 892e4fd4dcff1df829ef919f4e5572f3811b3a3e Mon Sep 17 00:00:00 2001
From: NIyue <100502009+NIyueeE@users.noreply.github.com>
Date: Thu, 21 Nov 2024 19:10:57 +0800
Subject: [PATCH] Add files via upload

---
 src/Classes/SelectionMap.gd | 43 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/Classes/SelectionMap.gd b/src/Classes/SelectionMap.gd
index abdc3329c..fd924a82e 100644
--- a/src/Classes/SelectionMap.gd
+++ b/src/Classes/SelectionMap.gd
@@ -175,7 +175,48 @@ func resize_bitmap_values(
 	else:
 		project.selection_offset.y = 0
 	clear()
-	smaller_image.resize(new_size.x, new_size.y, Image.INTERPOLATE_NEAREST)
+	
+	var is_ellipse_select := true
+	var w := smaller_image.get_width()
+	var h := smaller_image.get_height()
+	var ellipse_select := DrawingAlgos.get_ellipse_points(Vector2.ZERO, Vector2i(w,h))
+	var x_min := []
+	var x_max := []
+	x_min.resize(h)
+	x_max.resize(h)
+	# Determine x_min and x_max of y
+	for i in ellipse_select.size()/2:
+		i*=2
+		var y := ellipse_select[i].y
+		var xmin := ellipse_select[i].x if ellipse_select[i].x < ellipse_select[i+1].x else ellipse_select[i+1].x
+		var xmax := ellipse_select[i].x if ellipse_select[i].x >= ellipse_select[i+1].x else ellipse_select[i+1].x
+		
+		if x_min[y] == null && x_max[y] == null: 
+			x_min[y] = xmin
+			x_max[y] = xmax
+		else:
+			if x_min[y] != null && x_min[y] > xmin:
+				x_min[y] = xmin
+			if x_max[y] != null && x_max[y] < xmax:
+				x_max[y] = xmax
+	# Determine whether the selection is an ellipse selection
+	for y in range(h):
+		if !is_ellipse_select:
+			break
+		for x in range(w):
+			if smaller_image.get_pixel(x,y) == Color(1,1,1,1) && (x < x_min[y] || x > x_max[y]):
+				is_ellipse_select = false
+				break
+	# if selection is an ellipse selection, resized as standard ellipse
+	if !is_ellipse_select:
+		smaller_image.resize(new_size.x, new_size.y, Image.INTERPOLATE_BILINEAR)
+	else:
+		var resized_img := Image.create(new_size.x, new_size.y, false, smaller_image.get_format())
+		var new_ellipse_select := DrawingAlgos.get_ellipse_points_filled(Vector2.ZERO, Vector2i(new_size.x,new_size.y))
+		for p in new_ellipse_select:
+			resized_img.set_pixel(p.x, p.y, Color(1, 1, 1, 1))
+		smaller_image = resized_img	
+	
 	if flip_hor:
 		smaller_image.flip_x()
 	if flip_ver: