[gthumb] thumb loader: allow to create a new loader with the same properties

[Paolo Bacchilega <paobac src gnome org>]

commit 10329e769180687973a3f9768fc307057d293e56
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed May 26 20:54:12 2021 +0200

    thumb loader: allow to create a new loader with the same properties

 gthumb/gth-image-loader.c |  7 +++++++
 gthumb/gth-image-loader.h |  1 +
 gthumb/gth-thumb-loader.c | 16 ++++++++++++++++
 gthumb/gth-thumb-loader.h |  1 +
 4 files changed, 25 insertions(+)
---
diff --git a/gthumb/gth-image-loader.c b/gthumb/gth-image-loader.c
index 2e0b089b..0564d651 100644
--- a/gthumb/gth-image-loader.c
+++ b/gthumb/gth-image-loader.c
@@ -104,6 +104,13 @@ gth_image_loader_set_loader_func (GthImageLoader     *self,
 }
 
 
+GthImageLoaderFunc
+gth_image_loader_get_loader_func (GthImageLoader *self)
+{
+       return self->priv->loader_func;
+}
+
+
 void
 gth_image_loader_set_preferred_format (GthImageLoader *self,
                                       GthImageFormat  preferred_format)
diff --git a/gthumb/gth-image-loader.h b/gthumb/gth-image-loader.h
index 96a367e7..995f48ae 100644
--- a/gthumb/gth-image-loader.h
+++ b/gthumb/gth-image-loader.h
@@ -55,6 +55,7 @@ GthImageLoader *  gth_image_loader_new                    (GthImageLoaderFunc
 void              gth_image_loader_set_loader_func        (GthImageLoader       *loader,
                                                           GthImageLoaderFunc    loader_func,
                                                           gpointer              loader_data);
+GthImageLoaderFunc gth_image_loader_get_loader_func       (GthImageLoader       *loader);
 void              gth_image_loader_set_preferred_format   (GthImageLoader       *loader,
                                                           GthImageFormat        preferred_format);
 void              gth_image_loader_set_out_profile        (GthImageLoader       *loader,
diff --git a/gthumb/gth-thumb-loader.c b/gthumb/gth-thumb-loader.c
index c9c0a9a0..dd37bc68 100644
--- a/gthumb/gth-thumb-loader.c
+++ b/gthumb/gth-thumb-loader.c
@@ -256,6 +256,22 @@ gth_thumb_loader_new (int requested_size)
 }
 
 
+GthThumbLoader *
+gth_thumb_loader_copy (GthThumbLoader *self)
+{
+       GthThumbLoader *loader;
+
+       loader = gth_thumb_loader_new (self->priv->requested_size);
+       gth_thumb_loader_set_loader_func (loader, gth_image_loader_get_loader_func (self->priv->tloader));
+       gth_thumb_loader_set_requested_size (loader, self->priv->requested_size);
+       gth_thumb_loader_set_use_cache (loader, self->priv->use_cache);
+       gth_thumb_loader_set_save_thumbnails (loader, self->priv->save_thumbnails);
+       gth_thumb_loader_set_max_file_size (loader, self->priv->max_file_size);
+
+       return loader;
+}
+
+
 void
 gth_thumb_loader_set_loader_func (GthThumbLoader     *self,
                                  GthImageLoaderFunc  loader_func)
diff --git a/gthumb/gth-thumb-loader.h b/gthumb/gth-thumb-loader.h
index 544bf2ba..49d448fb 100644
--- a/gthumb/gth-thumb-loader.h
+++ b/gthumb/gth-thumb-loader.h
@@ -54,6 +54,7 @@ struct _GthThumbLoaderClass
 
 GType             gth_thumb_loader_get_type             (void);
 GthThumbLoader *  gth_thumb_loader_new                  (int                   requested_size);
+GthThumbLoader *  gth_thumb_loader_copy                 (GthThumbLoader       *self);
 void              gth_thumb_loader_set_loader_func      (GthThumbLoader       *self,
                                                         GthImageLoaderFunc    loader_func);
 void              gth_thumb_loader_set_requested_size   (GthThumbLoader       *self,