mirror of https://github.com/GNOME/gimp.git
347 lines
12 KiB
C
347 lines
12 KiB
C
/* GIMP - The GNU Image Manipulation Program
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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 "libgimpbase/gimpbase.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "dialogs-types.h"
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#include "gegl/gimp-babl.h"
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#include "core/gimpcontext.h"
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#include "core/gimpimage.h"
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#include "widgets/gimphelp-ids.h"
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#include "widgets/gimpviewabledialog.h"
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#include "widgets/gimpwidgets-utils.h"
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#include "convert-precision-dialog.h"
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#include "gimp-intl.h"
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typedef struct _ConvertDialog ConvertDialog;
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struct _ConvertDialog
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{
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GimpImage *image;
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GimpComponentType component_type;
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GimpTRCType 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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GimpConvertPrecisionCallback 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 (GimpImage *image,
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GimpContext *context,
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GtkWidget *parent,
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GimpComponentType 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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GimpConvertPrecisionCallback 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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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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GimpTRCType trc;
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g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
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g_return_val_if_fail (GIMP_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 = gimp_image_get_layer_format (image, FALSE);
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new_format = gimp_babl_format (GIMP_RGB,
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gimp_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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/* when changing this logic, also change the same switch()
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* in gimptemplateeditor.h
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*/
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switch (component_type)
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{
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case GIMP_COMPONENT_TYPE_U8:
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/* default to gamma when converting 8 bit */
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trc = GIMP_TRC_NON_LINEAR;
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break;
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case GIMP_COMPONENT_TYPE_U16:
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case GIMP_COMPONENT_TYPE_U32:
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default:
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/* leave gamma alone by default when converting to 16/32 bit int */
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trc = gimp_babl_format_get_trc (old_format);
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break;
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case GIMP_COMPONENT_TYPE_HALF:
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case GIMP_COMPONENT_TYPE_FLOAT:
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case GIMP_COMPONENT_TYPE_DOUBLE:
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/* default to linear when converting to floating point */
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trc = GIMP_TRC_LINEAR;
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break;
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}
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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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gimp_enum_get_value (GIMP_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 = gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
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_("Precision Conversion"),
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"gimp-image-convert-precision",
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GIMP_ICON_CONVERT_PRECISION,
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blurb,
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parent,
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gimp_standard_help_func,
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GIMP_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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gimp_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 = gimp_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 = gimp_int_radio_group_new (FALSE, NULL,
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G_CALLBACK (gimp_radio_button_update),
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&private->trc,
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trc,
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_("Linear light"),
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GIMP_TRC_LINEAR, NULL,
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_("Non-Linear"),
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GIMP_TRC_NON_LINEAR, NULL,
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_("Perceptual (sRGB)"),
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GIMP_TRC_PERCEPTUAL, NULL,
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NULL);
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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 = gimp_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 = gimp_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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gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
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private->layer_dither_method,
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G_CALLBACK (gimp_int_combo_box_get_active),
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&private->layer_dither_method);
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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 = gimp_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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gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
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private->text_layer_dither_method,
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G_CALLBACK (gimp_int_combo_box_get_active),
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&private->text_layer_dither_method);
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gimp_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 = gimp_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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gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
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private->channel_dither_method,
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G_CALLBACK (gimp_int_combo_box_get_active),
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&private->channel_dither_method);
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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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GimpPrecision precision = gimp_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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