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gimp/app/dialogs/offset-dialog.c

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/* The GIMP -- an 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 "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "core/gimpchannel.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawable-offset.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimpimage.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "offset-dialog.h"
#include "gimp-intl.h"
#define ENTRY_WIDTH 60
typedef struct _OffsetDialog OffsetDialog;
struct _OffsetDialog
{
GtkWidget *dlg;
GtkWidget *off_se;
gboolean wrap_around;
GimpOffsetType fill_type;
GimpImage *gimage;
};
/* local function prototypes */
static void offset_ok_callback (GtkWidget *widget,
gpointer data);
static void offset_halfheight_callback (GtkWidget *widget,
gpointer data);
/* public functions */
void
offset_dialog_create (GimpDrawable *drawable)
{
OffsetDialog *off_d;
GtkWidget *check;
GtkWidget *button;
GtkWidget *vbox;
GtkWidget *abox;
GtkObject *adjustment;
GtkWidget *spinbutton;
GtkWidget *frame;
GtkWidget *radio_button;
const gchar *title = NULL;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
off_d = g_new0 (OffsetDialog, 1);
off_d->wrap_around = TRUE;
off_d->fill_type = gimp_drawable_has_alpha (drawable);
off_d->gimage = gimp_item_get_image (GIMP_ITEM (drawable));
if (GIMP_IS_LAYER (drawable))
title = _("Offset Layer");
else if (GIMP_IS_LAYER_MASK (drawable))
title = _("Offset Layer Mask");
else if (GIMP_IS_CHANNEL (drawable))
title = _("Offset Channel");
else
g_warning ("%s: unexpected drawable type", G_STRLOC);
off_d->dlg =
gimp_viewable_dialog_new (GIMP_VIEWABLE (drawable),
_("Offset"), "offset",
GIMP_STOCK_TOOL_MOVE,
title,
gimp_standard_help_func,
GIMP_HELP_LAYER_OFFSET,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, (gpointer) 1, NULL, FALSE, TRUE,
GTK_STOCK_OK, offset_ok_callback,
off_d, NULL, NULL, TRUE, FALSE,
NULL);
g_object_weak_ref (G_OBJECT (off_d->dlg), (GWeakNotify) g_free, off_d);
/* The vbox for first column of options */
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (off_d->dlg)->vbox), vbox);
/* The offset sizeentry */
abox = gtk_alignment_new (0.0, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 10);
off_d->off_se = gimp_size_entry_new (1, off_d->gimage->unit, "%a",
TRUE, TRUE, FALSE, 10,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (off_d->off_se), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (off_d->off_se), 1, 4);
gtk_table_set_row_spacing (GTK_TABLE (off_d->off_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (off_d->off_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (off_d->off_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (off_d->off_se),
_("Offset _X:"), 0, 0, 1.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (off_d->off_se),
_("_Y:"), 1, 0, 1.0);
gtk_container_add (GTK_CONTAINER (abox), off_d->off_se);
gtk_widget_show (off_d->off_se);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (off_d->off_se), GIMP_UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (off_d->off_se), 0,
off_d->gimage->xresolution, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (off_d->off_se), 1,
off_d->gimage->yresolution, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (off_d->off_se), 0,
-off_d->gimage->width,
off_d->gimage->width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (off_d->off_se), 1,
-off_d->gimage->height,
off_d->gimage->height);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (off_d->off_se), 0,
0, off_d->gimage->width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (off_d->off_se), 1,
0, off_d->gimage->height);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se), 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se), 1, 0);
/* The by half height and half width option */
button = gtk_button_new_with_mnemonic (_("Offset by (x/_2),(y/2)"));
gtk_container_set_border_width (GTK_CONTAINER (button), 2);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_halfheight_callback),
off_d);
/* The wrap around option */
check = gtk_check_button_new_with_mnemonic (_("_Wrap"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), off_d->wrap_around);
gtk_box_pack_start (GTK_BOX (vbox), check, FALSE, FALSE, 0);
gtk_widget_show (check);
g_signal_connect (check, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&off_d->wrap_around);
/* The fill options */
frame =
gimp_radio_group_new2 (TRUE, _("Fill Type"),
G_CALLBACK (gimp_radio_button_update),
&off_d->fill_type,
GINT_TO_POINTER (off_d->fill_type),
_("_Background"),
GINT_TO_POINTER (GIMP_OFFSET_BACKGROUND), NULL,
_("_Transparent"),
GINT_TO_POINTER (GIMP_OFFSET_TRANSPARENT),
&radio_button,
NULL);
if (! gimp_drawable_has_alpha (drawable))
gtk_widget_set_sensitive (radio_button, FALSE);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
g_object_set_data (G_OBJECT (check), "inverse_sensitive", frame);
gtk_widget_set_sensitive (frame, ! off_d->wrap_around);
gtk_widget_show (vbox);
gtk_widget_show (off_d->dlg);
}
/* private functions */
static void
offset_ok_callback (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
GimpImage *gimage;
GimpDrawable *drawable;
gint offset_x;
gint offset_y;
off_d = (OffsetDialog *) data;
if ((gimage = off_d->gimage) != NULL)
{
drawable = gimp_image_active_drawable (gimage);
offset_x = (gint)
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (off_d->off_se), 0));
offset_y = (gint)
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (off_d->off_se), 1));
gimp_drawable_offset (drawable,
off_d->wrap_around, off_d->fill_type,
offset_x, offset_y);
gimp_image_flush (gimage);
}
gtk_widget_destroy (off_d->dlg);
}
static void
offset_halfheight_callback (GtkWidget *widget,
gpointer data)
{
OffsetDialog *off_d;
GimpImage *gimage;
off_d = (OffsetDialog *) data;
gimage = off_d->gimage;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se),
0, gimage->width / 2);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (off_d->off_se),
1, gimage->height / 2);
}
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