GH-1151 Add ui/nodes/connection_hotzone_scale option

Author: Naros

src/common/settings.cpp

@@ -185,6 +185,7 @@ void OrchestratorSettings::_register_settings()
     _settings.emplace_back(BOOL_SETTING("ui/graph/show_overlay_action_tooltips", true));
     _settings.emplace_back(COLOR_NO_ALPHA_SETTING("ui/graph/knot_selected_color", Color(0.68f, 0.44f, 0.09f)));
 
+    _settings.emplace_back(SENUM_SETTING("ui/nodes/connection_hotzone_scale", "100%,150%,200%", "100%"));
     _settings.emplace_back(BOOL_SETTING("ui/nodes/show_type_icons", true));
     _settings.emplace_back(BOOL_SETTING("ui/nodes/resizable_by_default", false));
     _settings.emplace_back(BOOL_SETTING("ui/nodes/highlight_selected_connections", false));

src/editor/graph/graph_edit.cpp

@@ -692,6 +692,22 @@ void OrchestratorGraphEdit::_drop_data_variable(const String& p_name, const Vect
     spawn_node(options);
 }
 
+bool OrchestratorGraphEdit::_is_in_port_hotzone(const Vector2& p_pos, const Vector2& p_mouse_pos, const Vector2i& p_port_size, bool p_left)
+{
+    const int32_t port_hotzone_outer_extent = get_theme_constant("port_hotzone_outer_extent");
+    const int32_t port_hotzone_inner_extent = get_theme_constant("port_hotzone_inner_extent");
+
+    const String hotzone_percent = ORCHESTRATOR_GET("ui/nodes/connection_hotzone_scale", "100%");
+    const Vector2i port_size = p_port_size * (hotzone_percent.replace("%", "").to_float() / 100.0);
+
+    const Rect2 hotzone = Rect2(
+        p_pos.x - (p_left ? port_hotzone_outer_extent : port_hotzone_inner_extent),
+        p_pos.y - port_size.height / 2.0,
+        port_hotzone_inner_extent + port_hotzone_outer_extent,
+        port_size.height);
+
+    return hotzone.has_point(p_mouse_pos);
+}
 
 void OrchestratorGraphEdit::_gui_input(const Ref<InputEvent>& p_event)
 {
@@ -1295,6 +1311,46 @@ PackedVector2Array OrchestratorGraphEdit::_get_connection_line(const Vector2& p_
     return curve_points;
 }
 
+bool OrchestratorGraphEdit::_is_in_input_hotzone(Object* p_in_node, int32_t p_in_port, const Vector2& p_mouse_position)
+{
+    GraphNode* node = cast_to<GraphNode>(p_in_node);
+    if (!node)
+        return false;
+
+    const Ref<Texture2D> icon = node->get_slot_custom_icon_left(p_in_port);
+    if (!icon.is_valid())
+        return false;
+
+    Vector2i port_size = Vector2i(icon->get_width(), icon->get_height());
+    int slot_index = node->get_input_port_slot(p_in_port);
+    Control* child = cast_to<Control>(node->get_child(slot_index, false));
+    port_size.height = MAX(port_size.height, child ? child->get_size().y : 0);
+
+    const float zoom = get_zoom();
+    const Vector2 pos = node->get_input_port_position(p_in_port) * zoom + node->get_position();
+    return _is_in_port_hotzone(pos / zoom, p_mouse_position, port_size, true);
+}
+
+bool OrchestratorGraphEdit::_is_in_output_hotzone(Object* p_in_node, int32_t p_in_port, const Vector2& p_mouse_position)
+{
+    GraphNode* node = cast_to<GraphNode>(p_in_node);
+    if (!node)
+        return false;
+
+    const Ref<Texture2D> icon = node->get_slot_custom_icon_right(p_in_port);
+    if (!icon.is_valid())
+        return false;
+
+    Vector2i port_size = Vector2i(icon->get_width(), icon->get_height());
+    int slot_index = node->get_output_port_slot(p_in_port);
+    Control* child = cast_to<Control>(node->get_child(slot_index, false));
+    port_size.height = MAX(port_size.height, child ? child->get_size().y : 0);
+
+    const float zoom = get_zoom();
+    const Vector2 pos = node->get_output_port_position(p_in_port) * zoom + node->get_position();
+    return _is_in_port_hotzone(pos / zoom, p_mouse_position, port_size, false);
+}
+
 bool OrchestratorGraphEdit::_get_connection_for_points(const Vector2& p_from_position,
                                                        const Vector2& p_to_position,
                                                        OScriptConnection& r_connection) const

src/editor/graph/graph_edit.h

@@ -172,6 +172,8 @@ class OrchestratorGraphEdit : public GraphEdit
     void _drop_data_function(const Dictionary& p_function, const Vector2& p_at_position, bool p_as_callable);
     void _drop_data_variable(const String& p_name, const Vector2& p_at_position, bool p_validated, bool p_setter);
 
+    bool _is_in_port_hotzone(const Vector2& p_pos, const Vector2& p_mouse_pos, const Vector2i& p_port_size, bool p_left);
+
 public:
     // The OrchestratorGraphEdit maintains a static clipboard so that data can be shared across different graph
     // instances easily in the tab view, and so these methods are called by the MainView during the
@@ -257,6 +259,8 @@ class OrchestratorGraphEdit : public GraphEdit
     void _drop_data(const Vector2& p_position, const Variant& p_data) override;
     bool _is_node_hover_valid(const StringName& p_from, int p_from_port, const StringName& p_to, int p_to_port) override;
     PackedVector2Array _get_connection_line(const Vector2& p_from_position, const Vector2& p_to_position) const override;
+    bool _is_in_input_hotzone(Object* p_in_node, int32_t p_in_port, const Vector2& p_mouse_position) override;
+    bool _is_in_output_hotzone(Object* p_in_node, int32_t p_in_port, const Vector2& p_mouse_position) override;
     //~ End GraphEdit overrides
 
     /// Spawn a node in the graph