-Added missing setters to GraphNode.

-Improved various GraphNode documentation.

doc/classes/GraphNode.xml

@@ -40,7 +40,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the color of the input connection [code]idx[/code].
+				Returns the [Color] of the input connection [code]idx[/code].
 			</description>
 		</method>
 		<method name="get_connection_input_count">
@@ -74,7 +74,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the color of the output connection [code]idx[/code].
+				Returns the [Color] of the output connection [code]idx[/code].
 			</description>
 		</method>
 		<method name="get_connection_output_count">
@@ -117,7 +117,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the color set to [code]idx[/code] left (input) slot.
+				Returns the left (input) [Color] of the slot [code]idx[/code].
 			</description>
 		</method>
 		<method name="get_slot_color_right" qualifiers="const">
@@ -126,7 +126,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the color set to [code]idx[/code] right (output) slot.
+				Returns the right (output) [Color] of the slot [code]idx[/code].
 			</description>
 		</method>
 		<method name="get_slot_type_left" qualifiers="const">
@@ -135,7 +135,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the (integer) type of left (input) [code]idx[/code] slot.
+				Returns the left (input) type of the slot [code]idx[/code].
 			</description>
 		</method>
 		<method name="get_slot_type_right" qualifiers="const">
@@ -144,7 +144,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns the (integer) type of right (output) [code]idx[/code] slot.
+				Returns the right (output) type of the slot [code]idx[/code].
 			</description>
 		</method>
 		<method name="is_slot_enabled_left" qualifiers="const">
@@ -153,7 +153,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if left (input) slot [code]idx[/code] is enabled, [code]false[/code] otherwise.
+				Returns [code]true[/code] if left (input) side of the slot [code]idx[/code] is enabled.
 			</description>
 		</method>
 		<method name="is_slot_enabled_right" qualifiers="const">
@@ -162,7 +162,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if right (output) slot [code]idx[/code] is enabled, [code]false[/code] otherwise.
+				Returns [code]true[/code] if right (output) side of the slot [code]idx[/code] is enabled.
 			</description>
 		</method>
 		<method name="set_opentype_feature">
@@ -204,6 +204,73 @@
 				[code]color_left[/code]/[code]right[/code] is the tint of the port's icon on this side.
 				[code]custom_left[/code]/[code]right[/code] is a custom texture for this side's port.
 				[b]Note:[/b] This method only sets properties of the slot. To create the slot, add a [Control]-derived child to the GraphNode.
+				Individual properties can be set using one of the [code]set_slot_*[/code] methods. You must enable at least one side of the slot to do so.
+			</description>
+		</method>
+		<method name="set_slot_color_left">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="color_left" type="Color">
+			</argument>
+			<description>
+				Sets the [Color] of the left (input) side of the slot [code]idx[/code] to [code]color_left[/code].
+			</description>
+		</method>
+		<method name="set_slot_color_right">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="color_right" type="Color">
+			</argument>
+			<description>
+				Sets the [Color] of the right (output) side of the slot [code]idx[/code] to [code]color_right[/code].
+			</description>
+		</method>
+		<method name="set_slot_enabled_left">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="enable_left" type="bool">
+			</argument>
+			<description>
+				Toggles the left (input) side of the slot [code]idx[/code]. If [code]enable_left[/code] is [code]true[/code], a port will appear on the left side and the slot will be able to be connected from this side.
+			</description>
+		</method>
+		<method name="set_slot_enabled_right">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="enable_right" type="bool">
+			</argument>
+			<description>
+				Toggles the right (output) side of the slot [code]idx[/code]. If [code]enable_right[/code] is [code]true[/code], a port will appear on the right side and the slot will be able to be connected from this side.
+			</description>
+		</method>
+		<method name="set_slot_type_left">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="type_left" type="int">
+			</argument>
+			<description>
+				Sets the left (input) type of the slot [code]idx[/code] to [code]type_left[/code].
+			</description>
+		</method>
+		<method name="set_slot_type_right">
+			<return type="void">
+			</return>
+			<argument index="0" name="idx" type="int">
+			</argument>
+			<argument index="1" name="type_right" type="int">
+			</argument>
+			<description>
+				Sets the right (output) type of the slot [code]idx[/code] to [code]type_right[/code].
 			</description>
 		</method>
 	</methods>

scene/gui/graph_node.cpp

@@ -459,7 +459,7 @@ void GraphNode::_shape() {
 }
 
 void GraphNode::set_slot(int p_idx, bool p_enable_left, int p_type_left, const Color &p_color_left, bool p_enable_right, int p_type_right, const Color &p_color_right, const Ref<Texture2D> &p_custom_left, const Ref<Texture2D> &p_custom_right) {
-	ERR_FAIL_COND(p_idx < 0);
+	ERR_FAIL_COND_MSG(p_idx < 0, vformat("Cannot set slot with p_idx (%d) lesser than zero.", p_idx));
 
 	if (!p_enable_left && p_type_left == 0 && p_color_left == Color(1, 1, 1, 1) &&
 			!p_enable_right && p_type_right == 0 && p_color_right == Color(1, 1, 1, 1) &&
@@ -503,6 +503,26 @@ bool GraphNode::is_slot_enabled_left(int p_idx) const {
 	return slot_info[p_idx].enable_left;
 }
 
+void GraphNode::set_slot_enabled_left(int p_idx, bool p_enable_left) {
+	ERR_FAIL_COND_MSG(p_idx < 0, vformat("Cannot set enable_left for the slot with p_idx (%d) lesser than zero.", p_idx));
+
+	slot_info[p_idx].enable_left = p_enable_left;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
+void GraphNode::set_slot_type_left(int p_idx, int p_type_left) {
+	ERR_FAIL_COND_MSG(!slot_info.has(p_idx), vformat("Cannot set type_left for the slot '%d' because it hasn't been enabled.", p_idx));
+
+	slot_info[p_idx].type_left = p_type_left;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
 int GraphNode::get_slot_type_left(int p_idx) const {
 	if (!slot_info.has(p_idx)) {
 		return 0;
@@ -510,6 +530,16 @@ int GraphNode::get_slot_type_left(int p_idx) const {
 	return slot_info[p_idx].type_left;
 }
 
+void GraphNode::set_slot_color_left(int p_idx, const Color &p_color_left) {
+	ERR_FAIL_COND_MSG(!slot_info.has(p_idx), vformat("Cannot set color_left for the slot '%d' because it hasn't been enabled.", p_idx));
+
+	slot_info[p_idx].color_left = p_color_left;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
 Color GraphNode::get_slot_color_left(int p_idx) const {
 	if (!slot_info.has(p_idx)) {
 		return Color(1, 1, 1, 1);
@@ -524,6 +554,26 @@ bool GraphNode::is_slot_enabled_right(int p_idx) const {
 	return slot_info[p_idx].enable_right;
 }
 
+void GraphNode::set_slot_enabled_right(int p_idx, bool p_enable_right) {
+	ERR_FAIL_COND_MSG(p_idx < 0, vformat("Cannot set enable_right for the slot with p_idx (%d) lesser than zero.", p_idx));
+
+	slot_info[p_idx].enable_right = p_enable_right;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
+void GraphNode::set_slot_type_right(int p_idx, int p_type_right) {
+	ERR_FAIL_COND_MSG(!slot_info.has(p_idx), vformat("Cannot set type_right for the slot '%d' because it hasn't been enabled.", p_idx));
+
+	slot_info[p_idx].type_right = p_type_right;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
 int GraphNode::get_slot_type_right(int p_idx) const {
 	if (!slot_info.has(p_idx)) {
 		return 0;
@@ -531,6 +581,16 @@ int GraphNode::get_slot_type_right(int p_idx) const {
 	return slot_info[p_idx].type_right;
 }
 
+void GraphNode::set_slot_color_right(int p_idx, const Color &p_color_right) {
+	ERR_FAIL_COND_MSG(!slot_info.has(p_idx), vformat("Cannot set color_right for the slot '%d' because it hasn't been enabled.", p_idx));
+
+	slot_info[p_idx].color_right = p_color_right;
+	update();
+	connpos_dirty = true;
+
+	emit_signal("slot_updated", p_idx);
+}
+
 Color GraphNode::get_slot_color_right(int p_idx) const {
 	if (!slot_info.has(p_idx)) {
 		return Color(1, 1, 1, 1);
@@ -891,11 +951,23 @@ void GraphNode::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_slot", "idx", "enable_left", "type_left", "color_left", "enable_right", "type_right", "color_right", "custom_left", "custom_right"), &GraphNode::set_slot, DEFVAL(Ref<Texture2D>()), DEFVAL(Ref<Texture2D>()));
 	ClassDB::bind_method(D_METHOD("clear_slot", "idx"), &GraphNode::clear_slot);
 	ClassDB::bind_method(D_METHOD("clear_all_slots"), &GraphNode::clear_all_slots);
+
 	ClassDB::bind_method(D_METHOD("is_slot_enabled_left", "idx"), &GraphNode::is_slot_enabled_left);
+	ClassDB::bind_method(D_METHOD("set_slot_enabled_left", "idx", "enable_left"), &GraphNode::set_slot_enabled_left);
+
+	ClassDB::bind_method(D_METHOD("set_slot_type_left", "idx", "type_left"), &GraphNode::set_slot_type_left);
 	ClassDB::bind_method(D_METHOD("get_slot_type_left", "idx"), &GraphNode::get_slot_type_left);
+
+	ClassDB::bind_method(D_METHOD("set_slot_color_left", "idx", "color_left"), &GraphNode::set_slot_color_left);
 	ClassDB::bind_method(D_METHOD("get_slot_color_left", "idx"), &GraphNode::get_slot_color_left);
+
 	ClassDB::bind_method(D_METHOD("is_slot_enabled_right", "idx"), &GraphNode::is_slot_enabled_right);
+	ClassDB::bind_method(D_METHOD("set_slot_enabled_right", "idx", "enable_right"), &GraphNode::set_slot_enabled_right);
+
+	ClassDB::bind_method(D_METHOD("set_slot_type_right", "idx", "type_right"), &GraphNode::set_slot_type_right);
 	ClassDB::bind_method(D_METHOD("get_slot_type_right", "idx"), &GraphNode::get_slot_type_right);
+
+	ClassDB::bind_method(D_METHOD("set_slot_color_right", "idx", "color_right"), &GraphNode::set_slot_color_right);
 	ClassDB::bind_method(D_METHOD("get_slot_color_right", "idx"), &GraphNode::get_slot_color_right);
 
 	ClassDB::bind_method(D_METHOD("set_position_offset", "offset"), &GraphNode::set_position_offset);

scene/gui/graph_node.h

@@ -113,11 +113,23 @@ public:
 	void set_slot(int p_idx, bool p_enable_left, int p_type_left, const Color &p_color_left, bool p_enable_right, int p_type_right, const Color &p_color_right, const Ref<Texture2D> &p_custom_left = Ref<Texture2D>(), const Ref<Texture2D> &p_custom_right = Ref<Texture2D>());
 	void clear_slot(int p_idx);
 	void clear_all_slots();
+
 	bool is_slot_enabled_left(int p_idx) const;
+	void set_slot_enabled_left(int p_idx, bool p_enable_left);
+
+	void set_slot_type_left(int p_idx, int p_type_left);
 	int get_slot_type_left(int p_idx) const;
+
+	void set_slot_color_left(int p_idx, const Color &p_color_left);
 	Color get_slot_color_left(int p_idx) const;
+
 	bool is_slot_enabled_right(int p_idx) const;
+	void set_slot_enabled_right(int p_idx, bool p_enable_right);
+
+	void set_slot_type_right(int p_idx, int p_type_right);
 	int get_slot_type_right(int p_idx) const;
+
+	void set_slot_color_right(int p_idx, const Color &p_color_right);
 	Color get_slot_color_right(int p_idx) const;
 
 	void set_title(const String &p_title);