Expose editor viewports

doc/classes/EditorInterface.xml

@@ -116,6 +116,19 @@
 				[b]Note:[/b] When creating custom editor UI, prefer accessing theme items directly from your GUI nodes using the [code]get_theme_*[/code] methods.
 			</description>
 		</method>
+		<method name="get_editor_viewport_2d" qualifiers="const">
+			<return type="SubViewport" />
+			<description>
+				Returns the 2D editor [SubViewport]. It does not have a camera. Instead, the view transforms are done directly and can be accessed with [member Viewport.global_canvas_transform].
+			</description>
+		</method>
+		<method name="get_editor_viewport_3d" qualifiers="const">
+			<return type="SubViewport" />
+			<param index="0" name="idx" type="int" default="0" />
+			<description>
+				Returns the specified 3D editor [SubViewport], from [code]0[/code] to [code]3[/code]. The viewport can be used to access the active editor cameras with [method Viewport.get_camera_3d].
+			</description>
+		</method>
 		<method name="get_file_system_dock" qualifiers="const">
 			<return type="FileSystemDock" />
 			<description>

editor/editor_interface.cpp

@@ -41,6 +41,7 @@
 #include "editor/filesystem_dock.h"
 #include "editor/gui/editor_run_bar.h"
 #include "editor/inspector_dock.h"
+#include "editor/plugins/node_3d_editor_plugin.h"
 #include "main/main.h"
 #include "scene/gui/box_container.h"
 #include "scene/gui/control.h"
@@ -213,6 +214,15 @@ ScriptEditor *EditorInterface::get_script_editor() const {
 	return ScriptEditor::get_singleton();
 }
 
+SubViewport *EditorInterface::get_editor_viewport_2d() const {
+	return EditorNode::get_singleton()->get_scene_root();
+}
+
+SubViewport *EditorInterface::get_editor_viewport_3d(int p_idx) const {
+	ERR_FAIL_INDEX_V(p_idx, static_cast<int>(Node3DEditor::VIEWPORTS_COUNT), nullptr);
+	return Node3DEditor::get_singleton()->get_editor_viewport(p_idx)->get_viewport_node();
+}
+
 void EditorInterface::set_main_screen_editor(const String &p_name) {
 	EditorNode::get_singleton()->select_editor_by_name(p_name);
 }
@@ -414,6 +424,8 @@ void EditorInterface::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_base_control"), &EditorInterface::get_base_control);
 	ClassDB::bind_method(D_METHOD("get_editor_main_screen"), &EditorInterface::get_editor_main_screen);
 	ClassDB::bind_method(D_METHOD("get_script_editor"), &EditorInterface::get_script_editor);
+	ClassDB::bind_method(D_METHOD("get_editor_viewport_2d"), &EditorInterface::get_editor_viewport_2d);
+	ClassDB::bind_method(D_METHOD("get_editor_viewport_3d", "idx"), &EditorInterface::get_editor_viewport_3d, DEFVAL(0));
 
 	ClassDB::bind_method(D_METHOD("set_main_screen_editor", "name"), &EditorInterface::set_main_screen_editor);
 	ClassDB::bind_method(D_METHOD("set_distraction_free_mode", "enter"), &EditorInterface::set_distraction_free_mode);

editor/editor_interface.h

@@ -49,6 +49,7 @@ class FileSystemDock;
 class Mesh;
 class Node;
 class ScriptEditor;
+class SubViewport;
 class Texture2D;
 class Theme;
 class VBoxContainer;
@@ -92,6 +93,8 @@ public:
 	Control *get_base_control() const;
 	VBoxContainer *get_editor_main_screen() const;
 	ScriptEditor *get_script_editor() const;
+	SubViewport *get_editor_viewport_2d() const;
+	SubViewport *get_editor_viewport_3d(int p_idx = 0) const;
 
 	void set_main_screen_editor(const String &p_name);
 	void set_distraction_free_mode(bool p_enter);