From 84570f44bf995a619017cffc4ff266f3d0af4f0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20Mart=C3=ADn=20Nieto?= <carlosmn@github.com>
Date: Tue, 14 Mar 2023 19:52:54 +0100
Subject: [PATCH] port: add the dragged port as the drag icon

This makes it the port label follows your cursor around instead of the generic
text document icon that doesn't make a lot of sense here.
---
 src/view/port.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/view/port.rs b/src/view/port.rs
index 2e8af18..f414eb0 100644
--- a/src/view/port.rs
+++ b/src/view/port.rs
@@ -158,9 +158,11 @@ impl Port {
                 Direction::Output => ForwardLink(id).to_value(),
             }))
             .build();
-        drag_src.connect_drag_begin(move |_, _| {
+        drag_src.connect_drag_begin(clone!(@weak res as obj => move |source, _| {
             trace!("Drag started from port {}", id);
-        });
+            let paintable = gtk::WidgetPaintable::new(Some(&obj));
+            source.set_icon(Some(&paintable), 0, 0);
+        }));
         drag_src.connect_drag_cancel(move |_, _, _| {
             trace!("Drag from port {} was cancelled", id);
             false