Prevent resizing minimap bigger than GraphEdit (Fix #47189)

Minimap size couldn't be resized back after been resized bigger than GraphEdit cause the grabber was out of GraphEdit.
This commit prevents resizing minimap bigger than GraphEdit and fix this issue.

1 files changed, 6 insertions, 1 deletions

diff --git a/scene/gui/graph_edit.cpp b/scene/gui/graph_edit.cpp
index 09a9cbf95b..71d31434d4 100644
--- a/scene/gui/graph_edit.cpp
+++ b/scene/gui/graph_edit.cpp
@@ -180,7 +180,12 @@ void GraphEditMinimap::_gui_input(const Ref<InputEvent> &p_ev) {
 		accept_event();
 	} else if (mm.is_valid() && is_pressing) {
 		if (is_resizing) {
-			ge->set_minimap_size(ge->get_minimap_size() - mm->get_relative());
+			// Prevent setting minimap wider than GraphEdit
+			Vector2 new_minimap_size;
+			new_minimap_size.x = MIN(get_size().x - mm->get_relative().x, ge->get_size().x - 2.0 * minimap_padding.x);
+			new_minimap_size.y = MIN(get_size().y - mm->get_relative().y, ge->get_size().y - 2.0 * minimap_padding.y);
+			ge->set_minimap_size(new_minimap_size);
+
 			update();
 		} else {
 			Vector2 click_position = _convert_to_graph_position(mm->get_position() - minimap_padding) - graph_padding;