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gimp/app/dialogs/offset-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 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 "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpitem.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 WRAP_AROUND (1 << 3)
#define FILL_MASK (GIMP_OFFSET_BACKGROUND | GIMP_OFFSET_TRANSPARENT)
typedef struct _OffsetDialog OffsetDialog;
struct _OffsetDialog
{
GimpDrawable *drawable;
GimpContext *context;
GimpOffsetType fill_type;
GimpOffsetCallback callback;
gpointer user_data;
GtkWidget *off_se;
};
/* local function prototypes */
static void offset_dialog_free (OffsetDialog *private);
static void offset_dialog_response (GtkWidget *dialog,
gint response_id,
OffsetDialog *private);
static void offset_dialog_half_xy_callback (GtkWidget *widget,
OffsetDialog *private);
static void offset_dialog_half_x_callback (GtkWidget *widget,
OffsetDialog *private);
static void offset_dialog_half_y_callback (GtkWidget *widget,
OffsetDialog *private);
/* public functions */
GtkWidget *
offset_dialog_new (GimpDrawable *drawable,
GimpContext *context,
GtkWidget *parent,
GimpOffsetCallback callback,
gpointer user_data)
{
OffsetDialog *private;
GimpImage *image;
GimpItem *item;
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *spinbutton;
GtkWidget *frame;
GtkWidget *radio_button;
GtkAdjustment *adjustment;
gdouble xres;
gdouble yres;
const gchar *title = NULL;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (callback != NULL, NULL);
item = GIMP_ITEM (drawable);
image = gimp_item_get_image (item);
private = g_slice_new0 (OffsetDialog);
private->drawable = drawable;
private->context = context;
private->fill_type = gimp_drawable_has_alpha (drawable) | WRAP_AROUND;
private->callback = callback;
private->user_data = user_data;
gimp_image_get_resolution (image, &xres, &yres);
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_STRFUNC);
dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (drawable), context,
_("Offset"), "gimp-drawable-offset",
GIMP_ICON_TOOL_MOVE,
title,
parent,
gimp_standard_help_func,
GIMP_HELP_LAYER_OFFSET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
/* offset, used as a verb */
_("_Offset"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) offset_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (offset_dialog_response),
private);
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, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* The offset frame */
frame = gimp_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
adjustment = (GtkAdjustment *)
gtk_adjustment_new (1, 1, 1, 1, 10, 0);
spinbutton = gtk_spin_button_new (adjustment, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 10);
private->off_se = gimp_size_entry_new (1, GIMP_UNIT_PIXEL, "%a",
TRUE, TRUE, FALSE, 10,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (private->off_se), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (private->off_se), 1, 4);
gtk_table_set_row_spacing (GTK_TABLE (private->off_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->off_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (private->off_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->off_se),
_("_X:"), 0, 0, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->off_se),
_("_Y:"), 1, 0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), private->off_se, FALSE, FALSE, 0);
gtk_widget_show (private->off_se);
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->off_se), GIMP_UNIT_PIXEL);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->off_se), 0,
xres, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->off_se), 1,
yres, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->off_se), 0,
- gimp_item_get_width (item),
gimp_item_get_width (item));
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->off_se), 1,
- gimp_item_get_height (item),
gimp_item_get_height (item));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->off_se), 0,
0, gimp_item_get_width (item));
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->off_se), 1,
0, gimp_item_get_height (item));
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se), 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se), 1, 0);
button = gtk_button_new_with_mnemonic (_("By width/_2, height/2"));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_dialog_half_xy_callback),
private);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = gtk_button_new_with_mnemonic ("By _width/2");
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_dialog_half_x_callback),
private);
button = gtk_button_new_with_mnemonic ("By _height/2");
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_dialog_half_y_callback),
private);
/* The edge behavior frame */
frame = gimp_int_radio_group_new (TRUE, _("Edge Behavior"),
G_CALLBACK (gimp_radio_button_update),
&private->fill_type, private->fill_type,
_("W_rap around"),
WRAP_AROUND, NULL,
_("Fill with _background color"),
GIMP_OFFSET_BACKGROUND, NULL,
_("Make _transparent"),
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 (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
return dialog;
}
/* private functions */
static void
offset_dialog_free (OffsetDialog *private)
{
g_slice_free (OffsetDialog, private);
}
static void
offset_dialog_response (GtkWidget *dialog,
gint response_id,
OffsetDialog *private)
{
if (response_id == GTK_RESPONSE_OK)
{
gint offset_x;
gint offset_y;
offset_x =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->off_se),
0));
offset_y =
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->off_se),
1));
private->callback (dialog,
private->drawable,
private->context,
private->fill_type & WRAP_AROUND ? TRUE : FALSE,
private->fill_type & FILL_MASK,
offset_x,
offset_y);
}
else
{
gtk_widget_destroy (dialog);
}
}
static void
offset_dialog_half_xy_callback (GtkWidget *widget,
OffsetDialog *private)
{
GimpItem *item = GIMP_ITEM (private->drawable);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se),
0, gimp_item_get_width (item) / 2);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se),
1, gimp_item_get_height (item) / 2);
}
static void
offset_dialog_half_x_callback (GtkWidget *widget,
OffsetDialog *private)
{
GimpItem *item = GIMP_ITEM (private->drawable);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se),
0, gimp_item_get_width (item) / 2);
}
static void
offset_dialog_half_y_callback (GtkWidget *widget,
OffsetDialog *private)
{
GimpItem *item = GIMP_ITEM (private->drawable);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->off_se),
1, gimp_item_get_height (item) / 2);
}
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