gimp/app/dialogs/metadata-rotation-import-di...

293 lines
10 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* metadata-rotation-import-dialog.h
* Copyright (C) 2020 Jehan
*
* 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 <gexiv2/gexiv2.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-metadata.h"
#include "core/gimppickable.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "metadata-rotation-import-dialog.h"
#include "gimp-intl.h"
static GimpMetadataRotationPolicy gimp_image_metadata_rotate_dialog (GimpImage *image,
GimpContext *context,
GtkWidget *parent,
GExiv2Orientation orientation,
gboolean *dont_ask);
static GdkPixbuf * gimp_image_metadata_rotate_pixbuf (GdkPixbuf *pixbuf,
GExiv2Orientation orientation);
/* public functions */
GimpMetadataRotationPolicy
metadata_rotation_import_dialog_run (GimpImage *image,
GimpContext *context,
GtkWidget *parent,
gboolean *dont_ask)
{
GimpMetadata *metadata;
GExiv2Orientation orientation;
metadata = gimp_image_get_metadata (image);
orientation = gexiv2_metadata_try_get_orientation (GEXIV2_METADATA (metadata), NULL);
if (orientation <= GEXIV2_ORIENTATION_NORMAL ||
orientation > GEXIV2_ORIENTATION_MAX)
return GIMP_METADATA_ROTATION_POLICY_KEEP;
return gimp_image_metadata_rotate_dialog (image, context, parent,
orientation, dont_ask);
}
static GimpMetadataRotationPolicy
gimp_image_metadata_rotate_dialog (GimpImage *image,
GimpContext *context,
GtkWidget *parent,
GExiv2Orientation orientation,
gboolean *dont_ask)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *toggle;
gchar *text;
GdkPixbuf *pixbuf;
gint width;
gint scale_factor;
gint height;
gint response;
dialog =
gimp_viewable_dialog_new (g_list_prepend (NULL, image), context,
_("Rotate Image?"),
"gimp-metadata-rotate-dialog",
GIMP_ICON_OBJECT_ROTATE_180,
_("Apply metadata rotation"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_METADATA_ROTATION_IMPORT,
_("_Keep Original"), GTK_RESPONSE_CANCEL,
_("_Rotate"), GTK_RESPONSE_OK,
NULL);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
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, FALSE, FALSE, 0);
gtk_widget_show (main_vbox);
text = g_strdup_printf (_("The image '%s' contains Exif orientation "
"metadata"),
gimp_image_get_display_name (image));
label = g_object_new (GTK_TYPE_LABEL,
"label", text,
"wrap", TRUE,
"justify", GTK_JUSTIFY_LEFT,
"xalign", 0.0,
"yalign", 0.5,
NULL);
g_free (text);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_box_pack_start (GTK_BOX (main_vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
scale_factor = gtk_widget_get_scale_factor (main_vbox);
width = gimp_image_get_width (image);
height = gimp_image_get_height (image);
#define MAX_THUMBNAIL_SIZE (128 * scale_factor)
if (width > MAX_THUMBNAIL_SIZE || height > MAX_THUMBNAIL_SIZE)
{
/* Adjust the width/height ratio to a maximum size (relative to
* current display scale factor.
*/
if (width > height)
{
height = MAX_THUMBNAIL_SIZE * height / width;
width = MAX_THUMBNAIL_SIZE;
}
else
{
width = MAX_THUMBNAIL_SIZE * width / height;
height = MAX_THUMBNAIL_SIZE;
}
}
gimp_pickable_flush (GIMP_PICKABLE (image));
pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (image), context,
width, height);
if (pixbuf)
{
GdkPixbuf *rotated;
GtkWidget *hbox;
GtkWidget *image;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
label = gtk_label_new (_("Original"));
gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_MIDDLE);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_box_pack_end (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
image = gtk_image_new_from_pixbuf (pixbuf);
gtk_box_pack_end (GTK_BOX (vbox), image, FALSE, FALSE, 0);
gtk_widget_show (image);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
gtk_widget_show (vbox);
label = gtk_label_new (_("Rotated"));
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_box_pack_end (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
rotated = gimp_image_metadata_rotate_pixbuf (pixbuf, orientation);
image = gtk_image_new_from_pixbuf (rotated);
g_object_unref (rotated);
gtk_box_pack_end (GTK_BOX (vbox), image, FALSE, FALSE, 0);
gtk_widget_show (image);
}
label = g_object_new (GTK_TYPE_LABEL,
"label", _("Would you like to rotate the image?"),
"wrap", TRUE,
"justify", GTK_JUSTIFY_LEFT,
"xalign", 0.0,
"yalign", 0.5,
NULL);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_box_pack_start (GTK_BOX (main_vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
toggle = gtk_check_button_new_with_mnemonic (_("_Don't ask me again"));
gtk_box_pack_end (GTK_BOX (main_vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), FALSE);
gtk_widget_show (toggle);
response = gimp_dialog_run (GIMP_DIALOG (dialog));
*dont_ask = (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (toggle)));
gtk_widget_destroy (dialog);
return (response == GTK_RESPONSE_OK) ?
GIMP_METADATA_ROTATION_POLICY_ROTATE : GIMP_COLOR_PROFILE_POLICY_KEEP;
}
static GdkPixbuf *
gimp_image_metadata_rotate_pixbuf (GdkPixbuf *pixbuf,
GExiv2Orientation orientation)
{
GdkPixbuf *rotated = NULL;
GdkPixbuf *temp;
switch (orientation)
{
case GEXIV2_ORIENTATION_UNSPECIFIED:
case GEXIV2_ORIENTATION_NORMAL: /* standard orientation, do nothing */
rotated = g_object_ref (pixbuf);
break;
case GEXIV2_ORIENTATION_HFLIP:
rotated = gdk_pixbuf_flip (pixbuf, TRUE);
break;
case GEXIV2_ORIENTATION_ROT_180:
rotated = gdk_pixbuf_rotate_simple (pixbuf, GDK_PIXBUF_ROTATE_UPSIDEDOWN);
break;
case GEXIV2_ORIENTATION_VFLIP:
rotated = gdk_pixbuf_flip (pixbuf, FALSE);
break;
case GEXIV2_ORIENTATION_ROT_90_HFLIP: /* flipped diagonally around '\' */
temp = gdk_pixbuf_rotate_simple (pixbuf, GDK_PIXBUF_ROTATE_CLOCKWISE);
rotated = gdk_pixbuf_flip (temp, TRUE);
g_object_unref (temp);
break;
case GEXIV2_ORIENTATION_ROT_90: /* 90 CW */
rotated = gdk_pixbuf_rotate_simple (pixbuf, GDK_PIXBUF_ROTATE_CLOCKWISE);
break;
case GEXIV2_ORIENTATION_ROT_90_VFLIP: /* flipped diagonally around '/' */
temp = gdk_pixbuf_rotate_simple (pixbuf, GDK_PIXBUF_ROTATE_CLOCKWISE);
rotated = gdk_pixbuf_flip (temp, FALSE);
g_object_unref (temp);
break;
case GEXIV2_ORIENTATION_ROT_270: /* 90 CCW */
rotated = gdk_pixbuf_rotate_simple (pixbuf, GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE);
break;
default: /* shouldn't happen */
break;
}
return rotated;
}