[gimp] Bug 795716 - Wavelet Decompose takes too long to group layers

[N/A <ell src gnome org>]

commit 7540ce779d4d225859a51c77767cd6f7594b24bc
Author: Ell <ell_se yahoo com>
Date:   Mon May 7 02:53:37 2018 -0400

    Bug 795716 - Wavelet Decompose takes too long to group layers
    
    Use gimp_image_{freeze,thaw}_layers(), added in the previous
    commit, to suppress updates to the Layers dialog while constructing
    the decomposed layers, which significantly speeds up the operation
    if the dialog is mapped.

 plug-ins/common/wavelet-decompose.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/plug-ins/common/wavelet-decompose.c b/plug-ins/common/wavelet-decompose.c
index a16b8e2..e9ee186 100644
--- a/plug-ins/common/wavelet-decompose.c
+++ b/plug-ins/common/wavelet-decompose.c
@@ -178,6 +178,8 @@ run (const gchar      *name,
 
       gimp_image_undo_group_start (image_id);
 
+      gimp_image_freeze_layers (image_id);
+
       if (wavelet_params.create_group)
         {
           gint32 group_id = gimp_layer_group_new (image_id);
@@ -291,6 +293,8 @@ run (const gchar      *name,
 
       g_free (scale_ids);
 
+      gimp_image_thaw_layers (image_id);
+
       gimp_image_undo_group_end (image_id);
 
       gimp_progress_update (1.0);