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app, libgimp, pdb: generate widgets for GIMP_PROC_ARG_LAYER|CHANNEL arguments.

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I am using the same GimpDrawableChooser with an additional drawable_type
argument to only show the appropriate tab if we want to limit what can be
chosen.

None of our plug-ins actually use a GimpLayer or GimpChannel only arg so far,
but if we have some day, or if some third-party plug-ins want to have such arg,
now they quite easily can!
This commit is contained in:
Jehan 2023-09-05 22:39:04 +02:00
parent 4be1166982
commit 2f4d625059
14 changed files with 219 additions and 90 deletions
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53
libgimp/gimpdrawablechooser.c
View file

@ -54,6 +54,7 @@ enum
PROP_TITLE,
PROP_LABEL,
PROP_DRAWABLE,
PROP_DRAWABLE_TYPE,
N_PROPS
};
@ -61,6 +62,7 @@ struct _GimpDrawableChooser
{
GtkBox parent_instance;
GType drawable_type;
GimpDrawable *drawable;
gchar *title;
gchar *label;
@ -168,6 +170,22 @@ gimp_drawable_chooser_class_init (GimpDrawableChooserClass *klass)
GIMP_PARAM_READWRITE |
G_PARAM_EXPLICIT_NOTIFY);
/**
* GimpDrawableChooser:drawable-type:
*
* Allowed drawable types, which must be either GIMP_TYPE_DRAWABLE or a
* subtype.
*
* Since: 3.0
*/
drawable_button_props[PROP_DRAWABLE_TYPE] =
g_param_spec_gtype ("drawable-type",
"Allowed drawable Type",
"The GType of the drawable property",
GIMP_TYPE_DRAWABLE,
G_PARAM_CONSTRUCT_ONLY |
GIMP_PARAM_READWRITE);
g_object_class_install_properties (object_class,
N_PROPS, drawable_button_props);
}
@ -275,9 +293,16 @@ gimp_drawable_chooser_set_property (GObject *object,
break;
case PROP_DRAWABLE:
g_return_if_fail (g_value_get_object (gvalue) == NULL ||
g_type_is_a (G_TYPE_FROM_INSTANCE (g_value_get_object (gvalue)),
chooser->drawable_type));
gimp_drawable_chooser_set_drawable (chooser, g_value_get_object (gvalue));
break;
case PROP_DRAWABLE_TYPE:
chooser->drawable_type = g_value_get_gtype (gvalue);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -306,6 +331,10 @@ gimp_drawable_chooser_get_property (GObject *object,
g_value_set_object (value, chooser->drawable);
break;
case PROP_DRAWABLE_TYPE:
g_value_set_gtype (value, chooser->drawable_type);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -316,9 +345,13 @@ gimp_drawable_chooser_get_property (GObject *object,
* gimp_drawable_chooser_new:
* @title: (nullable): Title of the dialog to use or %NULL to use the default title.
* @label: (nullable): Button label or %NULL for no label.
* @drawable_type: the acceptable subtype of choosable drawables.
* @drawable: (nullable): Initial drawable.
*
* Creates a new #GtkWidget that lets a user choose a drawable.
* Creates a new #GtkWidget that lets a user choose a drawable which must be of
* type @drawable_type. @drawable_type of values %G_TYPE_NONE and
* %GIMP_TYPE_DRAWABLE are equivalent. Otherwise it must be a subtype of
* %GIMP_TYPE_DRAWABLE.
*
* When @drawable is %NULL, initial choice is from context.
*
@ -329,14 +362,24 @@ gimp_drawable_chooser_get_property (GObject *object,
GtkWidget *
gimp_drawable_chooser_new (const gchar *title,
const gchar *label,
GType drawable_type,
GimpDrawable *drawable)
{
GtkWidget *chooser;
if (drawable_type == G_TYPE_NONE)
drawable_type = GIMP_TYPE_DRAWABLE;
g_return_val_if_fail (g_type_is_a (drawable_type, GIMP_TYPE_DRAWABLE), NULL);
g_return_val_if_fail (drawable == NULL ||
g_type_is_a (G_TYPE_FROM_INSTANCE (drawable), drawable_type),
NULL);
chooser = g_object_new (GIMP_TYPE_DRAWABLE_CHOOSER,
"title", title,
"label", label,
"drawable", drawable,
"title", title,
"label", label,
"drawable", drawable,
"drawable-type", drawable_type,
NULL);
return chooser;
@ -482,7 +525,7 @@ gimp_drawable_chooser_clicked (GimpDrawableChooser *chooser)
g_free (callback_name);
if (gimp_drawables_popup (gimp_procedure_get_name (callback_procedure), chooser->title,
chooser->drawable, handle))
g_type_name (chooser->drawable_type), chooser->drawable, handle))
{
/* Allow callbacks to be watched */
gimp_plug_in_extension_enable (plug_in);