Added an editor plugin for the material maker module.

modules/material_maker/SCsub

@@ -4,7 +4,6 @@ Import('env')
 
 module_env = env.Clone()
 
-
 sources = [
     "register_types.cpp",
 
@@ -52,6 +51,8 @@ sources = [
     "editor/widgets/polygon_edit/polygon_view.cpp",
 ]
 
+if env["tools"]:
+    sources.append("editor_plugin.cpp")
 
 module_env.add_source_files(env.modules_sources, sources)
 

modules/material_maker/editor_plugin.cpp

@@ -0,0 +1,58 @@
+#include "editor_plugin.h"
+
+#include "editor/mat_maker_gd_editor.h"
+#include "nodes/mm_material.h"
+
+void MaterialMakerEditorPlugin::make_visible(bool p_visible) {
+	if (tool_button) {
+		if (p_visible) {
+			tool_button->show();
+		} else {
+			//if tool_button.pressed:
+			//	tool_button.pressed = false;
+
+			if (!tool_button->is_pressed()) {
+				tool_button->hide();
+			}
+		}
+	}
+}
+void MaterialMakerEditorPlugin::edit(Object *p_object) {
+	//if editor_scene:
+	//	make_bottom_panel_item_visible(editor_scene)
+
+	if (p_object->is_class("MMMaterial")) {
+		editor_scene->set_mm_material(Ref<MMMaterial>(p_object));
+	}
+}
+bool MaterialMakerEditorPlugin::handles(Object *p_object) const {
+	return p_object->is_class("MMMaterial");
+}
+
+MaterialMakerEditorPlugin::MaterialMakerEditorPlugin(EditorNode *p_node) {
+	_editor_node = p_node;
+	editor_scene = nullptr;
+	tool_button = nullptr;
+}
+
+MaterialMakerEditorPlugin::~MaterialMakerEditorPlugin() {
+}
+
+void MaterialMakerEditorPlugin::_notification(int p_what) {
+	if (p_what == NOTIFICATION_ENTER_TREE) {
+		editor_scene = memnew(MatMakerGDEditor);
+		editor_scene->set_undo_redo(&get_undo_redo());
+
+		tool_button = add_control_to_bottom_panel(editor_scene, "MMGD");
+		tool_button->hide();
+	} else if (p_what == NOTIFICATION_EXIT_TREE) {
+		remove_control_from_bottom_panel(editor_scene);
+
+		if (editor_scene) {
+			editor_scene->queue_delete();
+		}
+
+		editor_scene = nullptr;
+		tool_button = nullptr;
+	}
+}

modules/material_maker/editor_plugin.h

@@ -0,0 +1,33 @@
+#ifndef MATERIAL_MAKER_EDITOR_PLUGIN_H
+#define MATERIAL_MAKER_EDITOR_PLUGIN_H
+
+#include "editor/editor_node.h"
+#include "editor/editor_plugin.h"
+
+class MatMakerGDEditor;
+class ToolButton;
+
+class MaterialMakerEditorPlugin : public EditorPlugin {
+	GDCLASS(MaterialMakerEditorPlugin, EditorPlugin);
+
+public:
+	bool has_main_screen() const { return false; }
+	String get_name() const { return "MaterialMakerEditorPlugin"; }
+
+	void make_visible(bool p_visible);
+	void edit(Object *p_object);
+	bool handles(Object *p_object) const;
+
+	MaterialMakerEditorPlugin(EditorNode *p_node);
+	~MaterialMakerEditorPlugin();
+
+protected:
+	void _notification(int p_what);
+
+	MatMakerGDEditor *editor_scene;
+	ToolButton *tool_button;
+
+	EditorNode *_editor_node;
+};
+
+#endif

modules/material_maker/register_types.cpp

@@ -38,6 +38,10 @@ SOFTWARE.
 #include "editor/mat_maker_gd_editor.h"
 #include "editor/mm_graph_node.h"
 
+#if TOOLS_ENABLED
+#include "editor_plugin.h"
+#endif
+
 static _MMAlgos *_mm_algos_singleton = nullptr;
 
 void register_material_maker_types() {
@@ -56,6 +60,10 @@ void register_material_maker_types() {
 
 	_mm_algos_singleton = memnew(_MMAlgos);
 	Engine::get_singleton()->add_singleton(Engine::Singleton("MMAlgos", _MMAlgos::get_singleton()));
+
+#if TOOLS_ENABLED
+	EditorPlugins::add_by_type<MaterialMakerEditorPlugin>();
+#endif
 }
 
 void unregister_material_maker_types() {