335 lines
12 KiB
C
335 lines
12 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikabase/pikabase.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "dialogs-types.h"
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#include "gegl/pika-babl.h"
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#include "core/pikacontext.h"
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#include "core/pikaimage.h"
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#include "core/pika-utils.h"
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#include "widgets/pikahelp-ids.h"
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#include "widgets/pikaviewabledialog.h"
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#include "widgets/pikawidgets-utils.h"
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#include "convert-precision-dialog.h"
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#include "pika-intl.h"
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typedef struct _ConvertDialog ConvertDialog;
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struct _ConvertDialog
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{
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PikaImage *image;
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PikaComponentType component_type;
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PikaTRCType trc;
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GeglDitherMethod layer_dither_method;
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GeglDitherMethod text_layer_dither_method;
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GeglDitherMethod channel_dither_method;
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PikaConvertPrecisionCallback callback;
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gpointer user_data;
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};
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/* local function prototypes */
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static void convert_precision_dialog_free (ConvertDialog *private);
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static void convert_precision_dialog_response (GtkWidget *widget,
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gint response_id,
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ConvertDialog *private);
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/* public functions */
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GtkWidget *
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convert_precision_dialog_new (PikaImage *image,
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PikaContext *context,
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GtkWidget *parent,
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PikaComponentType component_type,
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GeglDitherMethod layer_dither_method,
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GeglDitherMethod text_layer_dither_method,
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GeglDitherMethod channel_dither_method,
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PikaConvertPrecisionCallback callback,
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gpointer user_data)
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{
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ConvertDialog *private;
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GtkWidget *dialog;
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GtkWidget *main_vbox;
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GtkWidget *vbox;
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GtkWidget *frame;
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GtkWidget *perceptual_radio;
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const gchar *enum_desc;
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gchar *blurb;
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const Babl *old_format;
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const Babl *new_format;
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gint old_bits;
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gint new_bits;
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gboolean dither;
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PikaTRCType trc;
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g_return_val_if_fail (PIKA_IS_IMAGE (image), NULL);
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g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
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g_return_val_if_fail (callback != NULL, NULL);
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/* random formats with the right precision */
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old_format = pika_image_get_layer_format (image, FALSE);
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new_format = pika_babl_format (PIKA_RGB,
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pika_babl_precision (component_type, FALSE),
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FALSE,
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babl_format_get_space (old_format));
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old_bits = (babl_format_get_bytes_per_pixel (old_format) * 8 /
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babl_format_get_n_components (old_format));
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new_bits = (babl_format_get_bytes_per_pixel (new_format) * 8 /
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babl_format_get_n_components (new_format));
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/* don't dither if we are converting to a higher bit depth,
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* or to more than MAX_DITHER_BITS.
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*/
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dither = (new_bits < old_bits &&
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new_bits <= CONVERT_PRECISION_DIALOG_MAX_DITHER_BITS);
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trc = pika_babl_format_get_trc (old_format);
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trc = pika_suggest_trc_for_component_type (component_type, trc);
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private = g_slice_new0 (ConvertDialog);
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private->image = image;
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private->component_type = component_type;
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private->trc = trc;
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private->layer_dither_method = layer_dither_method;
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private->text_layer_dither_method = text_layer_dither_method;
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private->channel_dither_method = channel_dither_method;
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private->callback = callback;
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private->user_data = user_data;
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pika_enum_get_value (PIKA_TYPE_COMPONENT_TYPE, component_type,
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NULL, NULL, &enum_desc, NULL);
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blurb = g_strdup_printf (_("Convert Image to %s"), enum_desc);
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dialog = pika_viewable_dialog_new (g_list_prepend (NULL, image), context,
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_("Encoding Conversion"),
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"pika-image-convert-precision",
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PIKA_ICON_CONVERT_PRECISION,
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blurb,
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parent,
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pika_standard_help_func,
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PIKA_HELP_IMAGE_CONVERT_PRECISION,
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_("_Cancel"), GTK_RESPONSE_CANCEL,
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_("C_onvert"), GTK_RESPONSE_OK,
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NULL);
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g_free (blurb);
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pika_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
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GTK_RESPONSE_OK,
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GTK_RESPONSE_CANCEL,
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-1);
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gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
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g_object_weak_ref (G_OBJECT (dialog),
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(GWeakNotify) convert_precision_dialog_free, private);
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g_signal_connect (dialog, "response",
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G_CALLBACK (convert_precision_dialog_response),
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private);
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main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
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gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
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gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
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main_vbox, TRUE, TRUE, 0);
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gtk_widget_show (main_vbox);
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/* gamma */
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frame = pika_frame_new (_("Gamma"));
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gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
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gtk_widget_show (frame);
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vbox = pika_int_radio_group_new (FALSE, NULL,
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G_CALLBACK (pika_radio_button_update),
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&private->trc, NULL,
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trc,
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_("Linear light"),
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PIKA_TRC_LINEAR, NULL,
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_("Non-Linear"),
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PIKA_TRC_NON_LINEAR, NULL,
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_("Perceptual (sRGB)"),
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PIKA_TRC_PERCEPTUAL, &perceptual_radio,
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NULL);
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if (private->trc != PIKA_TRC_PERCEPTUAL)
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gtk_widget_hide (perceptual_radio);
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gtk_container_add (GTK_CONTAINER (frame), vbox);
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gtk_widget_show (vbox);
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/* dithering */
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if (dither)
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{
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GtkWidget *hbox;
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GtkWidget *label;
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GtkWidget *combo;
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GtkSizeGroup *size_group;
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frame = pika_frame_new (_("Dithering"));
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gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
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gtk_widget_show (frame);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
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gtk_container_add (GTK_CONTAINER (frame), vbox);
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gtk_widget_show (vbox);
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size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
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/* layers */
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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gtk_widget_show (hbox);
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label = gtk_label_new_with_mnemonic (_("_Layers:"));
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
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gtk_size_group_add_widget (size_group, label);
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gtk_widget_show (label);
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combo = pika_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
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gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
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gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
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gtk_widget_show (combo);
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pika_int_combo_box_connect (PIKA_INT_COMBO_BOX (combo),
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private->layer_dither_method,
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G_CALLBACK (pika_int_combo_box_get_active),
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&private->layer_dither_method, NULL);
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/* text layers */
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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gtk_widget_show (hbox);
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label = gtk_label_new_with_mnemonic (_("_Text Layers:"));
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
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gtk_size_group_add_widget (size_group, label);
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gtk_widget_show (label);
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combo = pika_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
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gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
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gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
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gtk_widget_show (combo);
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pika_int_combo_box_connect (PIKA_INT_COMBO_BOX (combo),
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private->text_layer_dither_method,
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G_CALLBACK (pika_int_combo_box_get_active),
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&private->text_layer_dither_method, NULL);
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pika_help_set_help_data (combo,
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_("Dithering text layers will make them "
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"uneditable"),
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NULL);
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/* channels */
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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gtk_widget_show (hbox);
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label = gtk_label_new_with_mnemonic (_("_Channels and Masks:"));
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gtk_label_set_xalign (GTK_LABEL (label), 0.0);
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gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
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gtk_size_group_add_widget (size_group, label);
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gtk_widget_show (label);
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combo = pika_enum_combo_box_new (GEGL_TYPE_DITHER_METHOD);
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gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
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gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
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gtk_widget_show (combo);
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pika_int_combo_box_connect (PIKA_INT_COMBO_BOX (combo),
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private->channel_dither_method,
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G_CALLBACK (pika_int_combo_box_get_active),
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&private->channel_dither_method, NULL);
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g_object_unref (size_group);
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}
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return dialog;
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}
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/* private functions */
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static void
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convert_precision_dialog_free (ConvertDialog *private)
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{
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g_slice_free (ConvertDialog, private);
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}
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static void
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convert_precision_dialog_response (GtkWidget *dialog,
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gint response_id,
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ConvertDialog *private)
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{
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if (response_id == GTK_RESPONSE_OK)
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{
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PikaPrecision precision = pika_babl_precision (private->component_type,
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private->trc);
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private->callback (dialog,
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private->image,
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precision,
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private->layer_dither_method,
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private->text_layer_dither_method,
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private->channel_dither_method,
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private->user_data);
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}
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else
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{
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gtk_widget_destroy (dialog);
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}
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}
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