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f3c999c80bb0f59daf88b9e5df9cc54d0e17796a
gimp/app/dialogs/scale-dialog.c
Øyvind Kolås f3c999c80b app: scale remove outdated warning about scaling indexed images 
Since the goat invasion, GIMP and GEGL have been using the set resampler and
map the resulting colors to the closest palette entries.
2017-06-24 19:06:07 +02:00

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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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpitem.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpmessagebox.h"
#include "widgets/gimpsizebox.h"
#include "widgets/gimpviewabledialog.h"
#include "scale-dialog.h"
#include "gimp-intl.h"
#define RESPONSE_RESET 1
typedef struct _ScaleDialog ScaleDialog;
struct _ScaleDialog
{
GimpViewable *viewable;
GimpUnit unit;
GimpInterpolationType interpolation;
GtkWidget *box;
GtkWidget *combo;
GimpScaleCallback callback;
gpointer user_data;
};
/* local function prototypes */
static void scale_dialog_free (ScaleDialog *private);
static void scale_dialog_response (GtkWidget *dialog,
gint response_id,
ScaleDialog *private);
static void scale_dialog_reset (ScaleDialog *private);
/* public function */
GtkWidget *
scale_dialog_new (GimpViewable *viewable,
GimpContext *context,
const gchar *title,
const gchar *role,
GtkWidget *parent,
GimpHelpFunc help_func,
const gchar *help_id,
GimpUnit unit,
GimpInterpolationType interpolation,
GimpScaleCallback callback,
gpointer user_data)
{
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *label;
ScaleDialog *private;
GimpImage *image = NULL;
const gchar *text = NULL;
gint width, height;
gdouble xres, yres;
g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (callback != NULL, NULL);
if (GIMP_IS_IMAGE (viewable))
{
image = GIMP_IMAGE (viewable);
width = gimp_image_get_width (image);
height = gimp_image_get_height (image);
text = _("Image Size");
}
else if (GIMP_IS_ITEM (viewable))
{
GimpItem *item = GIMP_ITEM (viewable);
image = gimp_item_get_image (item);
width = gimp_item_get_width (item);
height = gimp_item_get_height (item);
text = _("Layer Size");
}
else
{
g_return_val_if_reached (NULL);
}
private = g_slice_new0 (ScaleDialog);
private->viewable = viewable;
private->interpolation = interpolation;
private->unit = unit;
private->callback = callback;
private->user_data = user_data;
gimp_image_get_resolution (image, &xres, &yres);
dialog = gimp_viewable_dialog_new (viewable, context,
title, role, GIMP_ICON_OBJECT_SCALE, title,
parent,
help_func, help_id,
_("_Reset"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Scale"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) scale_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (scale_dialog_response),
private);
private->box = g_object_new (GIMP_TYPE_SIZE_BOX,
"width", width,
"height", height,
"unit", unit,
"xresolution", xres,
"yresolution", yres,
"resolution-unit", gimp_image_get_unit (image),
"keep-aspect", TRUE,
"edit-resolution", GIMP_IS_IMAGE (viewable),
NULL);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
frame = gimp_frame_new (text);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (frame), private->box);
gtk_widget_show (private->box);
frame = gimp_frame_new (_("Quality"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
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 (_("I_nterpolation:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_size_group_add_widget (GIMP_SIZE_BOX (private->box)->size_group, label);
private->combo = gimp_enum_combo_box_new (GIMP_TYPE_INTERPOLATION_TYPE);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), private->combo);
gtk_box_pack_start (GTK_BOX (hbox), private->combo, TRUE, TRUE, 0);
gtk_widget_show (private->combo);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (private->combo),
private->interpolation);
return dialog;
}
/* private functions */
static void
scale_dialog_free (ScaleDialog *private)
{
g_slice_free (ScaleDialog, private);
}
static void
scale_dialog_response (GtkWidget *dialog,
gint response_id,
ScaleDialog *private)
{
GimpUnit unit = private->unit;
gint interpolation = private->interpolation;
GimpUnit resolution_unit;
gint width, height;
gdouble xres, yres;
switch (response_id)
{
case RESPONSE_RESET:
scale_dialog_reset (private);
break;
case GTK_RESPONSE_OK:
g_object_get (private->box,
"width", &width,
"height", &height,
"unit", &unit,
"xresolution", &xres,
"yresolution", &yres,
"resolution-unit", &resolution_unit,
NULL);
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (private->combo),
&interpolation);
private->callback (dialog,
private->viewable,
width, height, unit, interpolation,
xres, yres, resolution_unit,
private->user_data);
break;
default:
gtk_widget_destroy (dialog);
break;
}
}
static void
scale_dialog_reset (ScaleDialog *private)
{
GimpImage *image;
gint width, height;
gdouble xres, yres;
if (GIMP_IS_IMAGE (private->viewable))
{
image = GIMP_IMAGE (private->viewable);
width = gimp_image_get_width (image);
height = gimp_image_get_height (image);
}
else if (GIMP_IS_ITEM (private->viewable))
{
GimpItem *item = GIMP_ITEM (private->viewable);
image = gimp_item_get_image (item);
width = gimp_item_get_width (item);
height = gimp_item_get_height (item);
}
else
{
g_return_if_reached ();
}
gimp_image_get_resolution (image, &xres, &yres);
g_object_set (private->box,
"keep-aspect", FALSE,
NULL);
g_object_set (private->box,
"width", width,
"height", height,
"unit", private->unit,
NULL);
g_object_set (private->box,
"keep-aspect", TRUE,
"xresolution", xres,
"yresolution", yres,
"resolution-unit", gimp_image_get_unit (image),
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (private->combo),
private->interpolation);
}
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