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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "gegl/gimp-babl.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "widgets/gimpwidgets-utils.h"
#include "convert-precision-dialog.h"
#include "gimp-intl.h"
typedef struct _ConvertDialog ConvertDialog;
struct _ConvertDialog
{
GimpImage *image;
GimpComponentType component_type;
gboolean linear;
GeglDitherMethod layer_dither_method;
GeglDitherMethod text_layer_dither_method;
GeglDitherMethod channel_dither_method;
GimpConvertPrecisionCallback callback;
gpointer user_data;
};
/* local function prototypes */
static void convert_precision_dialog_free (ConvertDialog *private);
static void convert_precision_dialog_response (GtkWidget *widget,
gint response_id,
ConvertDialog *private);
/* public functions */
GtkWidget *
convert_precision_dialog_new (GimpImage *image,
GimpContext *context,
GtkWidget *parent,
GimpComponentType component_type,
GeglDitherMethod layer_dither_method,
GeglDitherMethod text_layer_dither_method,
GeglDitherMethod channel_dither_method,
GimpConvertPrecisionCallback callback,
gpointer user_data)
{
ConvertDialog *private;
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *frame;
const gchar *enum_desc;
gchar *blurb;
const Babl *old_format;
const Babl *new_format;
gint old_bits;
gint new_bits;
gboolean dither;
gboolean linear;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (callback != NULL, NULL);
/* random formats with the right precision */
old_format = gimp_image_get_layer_format (image, FALSE);
new_format = gimp_babl_format (GIMP_RGB,
gimp_babl_precision (component_type, FALSE),
FALSE);
old_bits = (babl_format_get_bytes_per_pixel (old_format) * 8 /
babl_format_get_n_components (old_format));
new_bits = (babl_format_get_bytes_per_pixel (new_format) * 8 /
babl_format_get_n_components (new_format));
/* don't dither if we are converting to a higher bit depth,
* or to more than MAX_DITHER_BITS.
*/
dither = (new_bits < old_bits &&
new_bits <= CONVERT_PRECISION_DIALOG_MAX_DITHER_BITS);
/* when changing this logic, also change the same switch()
* in gimptemplateeditor.h
*/
switch (component_type)
{
case GIMP_COMPONENT_TYPE_U8:
/* default to gamma when converting 8 bit */
linear = FALSE;
break;
case GIMP_COMPONENT_TYPE_U16:
case GIMP_COMPONENT_TYPE_U32:
default:
/* leave gamma alone by default when converting to 16/32 bit int */
linear = gimp_babl_format_get_linear (old_format);
break;
case GIMP_COMPONENT_TYPE_HALF:
case GIMP_COMPONENT_TYPE_FLOAT:
case GIMP_COMPONENT_TYPE_DOUBLE:
/* default to linear when converting to floating point */
linear = TRUE;
break;
}
private = g_slice_new0 (ConvertDialog);
private->image = image;
private->component_type = component_type;
private->linear = linear;
private->layer_dither_method = layer_dither_method;
private->text_layer_dither_method = text_layer_dither_method;
private->channel_dither_method = channel_dither_method;
private->callback = callback;
private->user_data = user_data;
gimp_enum_get_value (GIMP_TYPE_COMPONENT_TYPE, component_type,
NULL, NULL, &enum_desc, NULL);
blurb = g_strdup_printf (_("Convert Image to %s"), enum_desc);
dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
#if PENDING_TRANSLATION
_("Encoding Conversion"),
#endif
_("Precision Conversion"),
"gimp-image-convert-precision",
GIMP_ICON_CONVERT_PRECISION,
blurb,
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_CONVERT_PRECISION,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("C_onvert"), GTK_RESPONSE_OK,
NULL);
g_free (blurb);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) convert_precision_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (convert_precision_dialog_response),
private);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* gamma */
frame = gimp_frame_new (_("Gamma"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gimp_int_radio_group_new (FALSE, NULL,
G_CALLBACK (gimp_radio_button_update),
&private->linear,
linear,
_("Perceptual gamma (sRGB)"), FALSE, NULL,
_("Linear light"), TRUE, NULL,
NULL);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* dithering */
if (dither)
{
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *combo;
GtkSizeGroup *size_group;
frame = gimp_frame_new (_("Dithering"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
/* layers */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Layers:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
private->layer_dither_method,
G_CALLBACK (gimp_int_combo_box_get_active),
&private->layer_dither_method);
/* text layers */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Text Layers:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
private->text_layer_dither_method,
G_CALLBACK (gimp_int_combo_box_get_active),
&private->text_layer_dither_method);
gimp_help_set_help_data (combo,
_("Dithering text layers will make them "
"uneditable"),
NULL);
/* channels */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Channels and Masks:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
private->channel_dither_method,
G_CALLBACK (gimp_int_combo_box_get_active),
&private->channel_dither_method);
g_object_unref (size_group);
}
return dialog;
}
/* private functions */
static void
convert_precision_dialog_free (ConvertDialog *private)
{
g_slice_free (ConvertDialog, private);
}
static void
convert_precision_dialog_response (GtkWidget *dialog,
gint response_id,
ConvertDialog *private)
{
if (response_id == GTK_RESPONSE_OK)
{
GimpPrecision precision = gimp_babl_precision (private->component_type,
private->linear);
private->callback (dialog,
private->image,
precision,
private->layer_dither_method,
private->text_layer_dither_method,
private->channel_dither_method,
private->user_data);
}
else
{
gtk_widget_destroy (dialog);
}
}
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