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gimp/app/dialogs/align-dialog.c

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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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimpimage.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage-arrange.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "align-dialog.h"
#include "gimp-intl.h"
typedef struct
{
GtkWidget *dialog;
GimpImage *image;
GtkWidget *button[6];
GimpAlignReferenceType align_reference_type;
} AlignDialog;
static void align_dialog_response (GtkWidget *dialog,
gint response_id,
AlignDialog *private);
static void align_dialog_free (AlignDialog *private);
static void do_align (GtkWidget *widget,
gpointer data);
static GtkWidget * button_with_stock (GimpAlignmentType action,
AlignDialog *private);
/* public functions */
GtkWidget *
align_dialog_new (GimpImage *image,
GimpContext *context,
GtkWidget *parent)
{
AlignDialog *private;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *hbox;
GtkWidget *combo;
GtkWidget *button;
GtkWidget *dialog;
GtkWidget *main_vbox;
gint n = 0;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
private = g_slice_new0 (AlignDialog);
private->image = image;
private->align_reference_type = GIMP_ALIGN_REFERENCE_ACTIVE_LAYER;
dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (image),
context,
_("Align"), "gimp-align",
GIMP_STOCK_CENTER, _("Align Linked Items"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_ALIGN_ITEMS,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NULL);
private->dialog = dialog;
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) align_dialog_free, private);
g_object_weak_ref (G_OBJECT (image),
(GWeakNotify) gtk_widget_destroy, dialog);
g_signal_connect (dialog, "response",
G_CALLBACK (align_dialog_response),
private);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), main_vbox);
gtk_widget_show (main_vbox);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (main_vbox), vbox);
gtk_widget_show (vbox);
frame = gimp_frame_new (_("Relative to:"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
combo = gimp_enum_combo_box_new (GIMP_TYPE_ALIGN_REFERENCE);
gtk_container_add (GTK_CONTAINER (frame), combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
GIMP_ALIGN_REFERENCE_ACTIVE_LAYER,
G_CALLBACK (gimp_int_combo_box_get_active),
&private->align_reference_type);
gtk_widget_show (combo);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = button_with_stock (GIMP_ALIGN_LEFT, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align left edges"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = button_with_stock (GIMP_ALIGN_HCENTER, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align horizontal centers"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = button_with_stock (GIMP_ALIGN_RIGHT, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align right edges"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = button_with_stock (GIMP_ALIGN_TOP, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align top edges"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = button_with_stock (GIMP_ALIGN_VCENTER, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align vertical centers"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = button_with_stock (GIMP_ALIGN_BOTTOM, private);
private->button[n++] = button;
gimp_help_set_help_data (button, _("Align bottom edges"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
return dialog;
}
/* private functions */
static void
align_dialog_response (GtkWidget *dialog,
gint response_id,
AlignDialog *private)
{
gtk_widget_destroy (dialog);
}
static void
align_dialog_free (AlignDialog *private)
{
g_object_weak_unref (G_OBJECT (private->image),
(GWeakNotify) gtk_widget_destroy,
private->dialog);
g_slice_free (AlignDialog, private);
}
static void
do_align (GtkWidget *widget,
gpointer data)
{
AlignDialog *private = data;
GimpAlignmentType action;
GimpImage *image;
GObject *reference_object = NULL;
image = private->image;
action = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "action"));
switch (private->align_reference_type)
{
case GIMP_ALIGN_REFERENCE_IMAGE:
reference_object = G_OBJECT (image);
break;
case GIMP_ALIGN_REFERENCE_SELECTION:
reference_object = G_OBJECT (gimp_image_get_mask (image));
break;
case GIMP_ALIGN_REFERENCE_ACTIVE_LAYER:
reference_object = G_OBJECT (gimp_image_get_active_layer (image));
break;
case GIMP_ALIGN_REFERENCE_ACTIVE_CHANNEL:
reference_object = G_OBJECT (gimp_image_get_active_channel (image));
break;
case GIMP_ALIGN_REFERENCE_ACTIVE_PATH:
reference_object = G_OBJECT (gimp_image_get_active_vectors (image));
break;
}
if (! reference_object)
return;
gimp_image_align_linked_items (image, action, reference_object);
gimp_image_flush (image);
}
static GtkWidget *
button_with_stock (GimpAlignmentType action,
AlignDialog *private)
{
GtkWidget *button;
GtkWidget *image;
const gchar *stock_id = NULL;
switch (action)
{
case GIMP_ALIGN_LEFT:
stock_id = GIMP_STOCK_GRAVITY_WEST;
break;
case GIMP_ALIGN_HCENTER:
stock_id = GIMP_STOCK_HCENTER;
break;
case GIMP_ALIGN_RIGHT:
stock_id = GIMP_STOCK_GRAVITY_EAST;
break;
case GIMP_ALIGN_TOP:
stock_id = GIMP_STOCK_GRAVITY_NORTH;
break;
case GIMP_ALIGN_VCENTER:
stock_id = GIMP_STOCK_VCENTER;
break;
case GIMP_ALIGN_BOTTOM:
stock_id = GIMP_STOCK_GRAVITY_SOUTH;
break;
default:
g_return_val_if_reached (NULL);
break;
}
button = gtk_button_new ();
g_object_set_data (G_OBJECT (button), "action", GINT_TO_POINTER (action));
image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_BUTTON);
gtk_misc_set_padding (GTK_MISC (image), 2, 2);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
g_signal_connect (button, "clicked",
G_CALLBACK (do_align),
private);
gtk_widget_set_sensitive (button, TRUE);
gtk_widget_show (button);
return button;
}
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