From 238dbb386dd68825b2e65a9e3ce661e8eab5a745 Mon Sep 17 00:00:00 2001
From: arch1t3cht <arch1t3cht@gmail.com>
Date: Tue, 12 Jul 2022 20:27:56 +0200
Subject: [PATCH] Restrict color picker's screenshot to window

This fixes issues like Aegisub/Aegisub#264 with taking
screenshots on linux, especially with wxgtk3 or wayland.
---
 src/dialog_colorpicker.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/dialog_colorpicker.cpp b/src/dialog_colorpicker.cpp
index 510d2a6ce..f6e080636 100644
--- a/src/dialog_colorpicker.cpp
+++ b/src/dialog_colorpicker.cpp
@@ -386,7 +386,13 @@ void ColorPickerScreenDropper::DropFromScreenXY(int x, int y) {
 	wxMemoryDC capdc(capture);
 	capdc.SetPen(*wxTRANSPARENT_PEN);
 #ifndef __WXMAC__
-	wxScreenDC screen;
+	wxWindow *superparent = GetParent();
+	while (superparent->GetParent() != nullptr) {
+		superparent = superparent->GetParent();
+	}
+	superparent->ScreenToClient(&x, &y);
+
+	wxWindowDC screen(superparent);
 	capdc.StretchBlit(0, 0, resx * magnification, resy * magnification,
 		&screen, x - resx / 2, y - resy / 2, resx, resy);
 #else