fixed camera2D showing incorrect bounds in editor

editor/editor_node.cpp

@@ -347,8 +347,6 @@ void EditorNode::_notification(int p_what) {
 
 			editor_selection->update();
 
-			//scene_root->set_size_override(true, Size2(ProjectSettings::get_singleton()->get("display/window/size/width"), ProjectSettings::get_singleton()->get("display/window/size/height")));
-
 			{ //TODO should only happen on settings changed
 				int current_filter = GLOBAL_GET("rendering/canvas_textures/default_texture_filter");
 				if (current_filter != scene_root->get_default_canvas_item_texture_filter()) {

scene/2d/camera_2d.cpp

@@ -32,6 +32,7 @@
 
 #include "core/engine.h"
 #include "core/math/math_funcs.h"
+#include "editor/editor_node.h"
 #include "scene/scene_string_names.h"
 #include "servers/rendering_server.h"
 
@@ -56,7 +57,7 @@ void Camera2D::_update_scroll() {
 
 		viewport->set_canvas_transform(xform);
 
-		Size2 screen_size = viewport->get_visible_rect().size;
+		Size2 screen_size = get_camera_screen_size();
 		Point2 screen_offset = (anchor_mode == ANCHOR_MODE_DRAG_CENTER ? (screen_size * 0.5) : Point2());
 
 		get_tree()->call_group_flags(SceneTree::GROUP_CALL_REALTIME, group_name, "_camera_moved", xform, screen_offset);
@@ -97,7 +98,7 @@ Transform2D Camera2D::get_camera_transform() {
 
 	ERR_FAIL_COND_V(custom_viewport && !ObjectDB::get_instance(custom_viewport_id), Transform2D());
 
-	Size2 screen_size = viewport->get_visible_rect().size;
+	Size2 screen_size = get_camera_screen_size();
 
 	Point2 new_camera_pos = get_global_transform().get_origin();
 	Point2 ret_camera_pos;
@@ -281,7 +282,7 @@ void Camera2D::_notification(int p_what) {
 				}
 
 				Transform2D inv_camera_transform = get_camera_transform().affine_inverse();
-				Size2 screen_size = get_viewport_rect().size;
+				Size2 screen_size = get_camera_screen_size();
 
 				Vector2 screen_endpoints[4] = {
 					inv_camera_transform.xform(Vector2(0, 0)),
@@ -328,7 +329,7 @@ void Camera2D::_notification(int p_what) {
 				}
 
 				Transform2D inv_camera_transform = get_camera_transform().affine_inverse();
-				Size2 screen_size = get_viewport_rect().size;
+				Size2 screen_size = get_camera_screen_size();
 
 				Vector2 margin_endpoints[4] = {
 					inv_camera_transform.xform(Vector2((screen_size.width / 2) - ((screen_size.width / 2) * drag_margin[MARGIN_LEFT]), (screen_size.height / 2) - ((screen_size.height / 2) * drag_margin[MARGIN_TOP]))),
@@ -494,7 +495,7 @@ void Camera2D::align() {
 
 	ERR_FAIL_COND(custom_viewport && !ObjectDB::get_instance(custom_viewport_id));
 
-	Size2 screen_size = viewport->get_visible_rect().size;
+	Size2 screen_size = get_camera_screen_size();
 
 	Point2 current_camera_pos = get_global_transform().get_origin();
 	if (anchor_mode == ANCHOR_MODE_DRAG_CENTER) {
@@ -535,6 +536,14 @@ Point2 Camera2D::get_camera_screen_center() const {
 	return camera_screen_center;
 }
 
+Size2 Camera2D::get_camera_screen_size() const {
+	// special case if the camera2D is in the root viewport
+	if (Engine::get_singleton()->is_editor_hint() && get_viewport() == EditorNode::get_singleton()->get_scene_root()) {
+		return Size2(ProjectSettings::get_singleton()->get("display/window/size/width"), ProjectSettings::get_singleton()->get("display/window/size/height"));
+	}
+	return get_viewport_rect().size;
+}
+
 void Camera2D::set_h_drag_enabled(bool p_enabled) {
 
 	h_drag_enabled = p_enabled;

scene/2d/camera_2d.h

@@ -148,6 +148,7 @@ public:
 	Vector2 get_zoom() const;
 
 	Point2 get_camera_screen_center() const;
+	Size2 get_camera_screen_size() const;
 
 	void set_custom_viewport(Node *p_viewport);
 	Node *get_custom_viewport() const;