Rename `CanvasItem.update()` to `queue_redraw()`

Affects a lot of classes. Very thoroughly checked signal connections and deferred calls to this method, add_do_method/add_undo_method calls, and so on.

Also renames the internal `_update_callback()` to `_redraw_callback()` for consistency.

Just a few comments have also been changed to say "redraw".

In CPUParticles2D, there was a private variable with the same name. It has been renamed to `do_redraw`.

1 files changed, 2 insertions, 2 deletions

diff --git a/editor/plugins/gradient_editor_plugin.cpp b/editor/plugins/gradient_editor_plugin.cpp
index f368d5bea1..890090c899 100644
--- a/editor/plugins/gradient_editor_plugin.cpp
+++ b/editor/plugins/gradient_editor_plugin.cpp
@@ -50,7 +50,7 @@ void GradientEditor::_gradient_changed() {
 	Vector<Gradient::Point> points = gradient->get_points();
 	set_points(points);
 	set_interpolation_mode(gradient->get_interpolation_mode());
-	update();
+	queue_redraw();
 	editing = false;
 }
 
@@ -83,7 +83,7 @@ void GradientEditor::reverse_gradient() {
 	gradient->reverse();
 	set_points(gradient->get_points());
 	emit_signal(SNAME("ramp_changed"));
-	update();
+	queue_redraw();
 }
 
 GradientEditor::GradientEditor() {