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gimp/app/dialogs/resize-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 "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "gui-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimplayer.h"
#include "core/gimptemplate.h"
#include "widgets/gimpenumcombobox.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "resize-dialog.h"
#include "gimp-intl.h"
#define RESIZE_RESPONSE_RESET 1
#define SB_WIDTH 8
typedef struct _ResizePrivate ResizePrivate;
struct _ResizePrivate
{
ResizeDialog dialog;
GtkCallback ok_callback;
gpointer ok_data;
/* size frame */
GtkWidget *orig_width_label;
GtkWidget *orig_height_label;
GtkWidget *size_se;
GtkObject *ratio_x_adj;
GtkObject *ratio_y_adj;
GtkWidget *constrain;
/* offset frame */
GtkWidget *offset_se;
GtkWidget *offset_area;
/* resolution frame */
GtkWidget *printsize_se;
GtkWidget *resolution_se;
GtkWidget *equal_res;
/* interpolation menu */
GtkWidget *interpolation_menu;
gint old_width, old_height;
gdouble old_res_x, old_res_y;
};
static void unit_update (GtkWidget *widget,
gpointer data);
static gint resize_bound_off_x (ResizeDialog *dialog,
gint off_x);
static gint resize_bound_off_y (ResizeDialog *dialog,
gint off_y);
static void orig_labels_update (GtkWidget *widget,
gpointer data);
static void response_callback (GtkWidget *widget,
gint response_id,
ResizeDialog *dialog);
static void size_callback (GtkWidget *widget,
ResizeDialog *dialog);
static void ratio_callback (GtkWidget * widget,
ResizeDialog *dialog);
static void size_update (ResizeDialog *dialog,
gdouble width,
gdouble height,
gdouble ratio_x,
gdouble ratio_y);
static void offset_area_offsets_changed (GtkWidget *offset_area,
gint offset_x,
gint offset_y,
gpointer data);
static void offset_update (GtkWidget *widget,
gpointer data);
static void offset_center_clicked (GtkWidget *widget,
gpointer data);
static void printsize_update (GtkWidget *widget,
gpointer data);
static void resolution_callback (GtkWidget *widget,
gpointer data);
static void resolution_update (ResizeDialog *dialog,
gdouble res_x,
gdouble res_y);
ResizeDialog *
resize_dialog_new (GimpViewable *viewable,
GtkWidget *parent,
ResizeType type,
gint width,
gint height,
gdouble resolution_x,
gdouble resolution_y,
GimpUnit unit,
GCallback ok_cb,
gpointer user_data)
{
ResizeDialog *dialog;
ResizePrivate *private;
GimpCoreConfig *config;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *table;
GtkWidget *table2;
GtkWidget *label;
GtkWidget *frame = NULL;
GtkWidget *spinbutton;
GtkObject *adjustment;
g_return_val_if_fail (GIMP_IS_ITEM (viewable) ||
GIMP_IS_IMAGE (viewable), NULL);
g_return_val_if_fail (ok_cb != NULL, NULL);
private = g_new0 (ResizePrivate, 1);
private->ok_callback = (GtkCallback) ok_cb;
private->ok_data = user_data;
private->old_width = width;
private->old_height = height;
private->old_res_x = resolution_x;
private->old_res_y = resolution_y;
dialog = (ResizeDialog *) private;
if (GIMP_IS_IMAGE (viewable))
{
dialog->gimage = GIMP_IMAGE (viewable);
dialog->target = RESIZE_IMAGE;
}
else
{
dialog->gimage = gimp_item_get_image (GIMP_ITEM (viewable));
dialog->target = RESIZE_LAYER;
}
config = dialog->gimage->gimp->config;
dialog->type = type;
dialog->width = width;
dialog->height = height;
dialog->resolution_x = resolution_x;
dialog->resolution_y = resolution_y;
dialog->unit = unit;
dialog->ratio_x = 1.0;
dialog->ratio_y = 1.0;
dialog->offset_x = 0;
dialog->offset_y = 0;
dialog->interpolation = config->interpolation_type;
/* dialog box */
{
const gchar *role = NULL;
const gchar *window_title = NULL;
const gchar *stock_id = NULL;
const gchar *window_desc = NULL;
gchar *help_page = NULL;
switch (type)
{
case SCALE_DIALOG:
stock_id = GIMP_STOCK_SCALE;
switch (dialog->target)
{
case RESIZE_LAYER:
role = "gimp-layer-scale";
window_title = _("Scale Layer");
window_desc = _("Scale Layer Options");
help_page = GIMP_HELP_LAYER_SCALE;
frame = gimp_frame_new (_("Size"));
break;
case RESIZE_IMAGE:
role = "gimp-image-scale";
window_title = _("Scale Image");
window_desc = _("Scale Image Options");
help_page = GIMP_HELP_IMAGE_SCALE;
frame = gimp_frame_new (_("Pixel Dimensions"));
break;
}
break;
case RESIZE_DIALOG:
stock_id = GIMP_STOCK_RESIZE;
switch (dialog->target)
{
case RESIZE_LAYER:
role = "gimp-layer-resize";
window_title = _("Layer Boundary Size");
window_desc = _("Set Layer Boundary Size");
help_page = GIMP_HELP_LAYER_RESIZE;
break;
case RESIZE_IMAGE:
role = "gimp-image-resize";
window_title = _("Canvas Size");
window_desc = _("Set Image Canvas Size");
help_page = GIMP_HELP_IMAGE_RESIZE;
break;
}
frame = gimp_frame_new (_("Size"));
break;
}
dialog->shell =
gimp_viewable_dialog_new (viewable,
window_title, role,
stock_id, window_desc,
parent,
gimp_standard_help_func, help_page,
GIMP_STOCK_RESET, RESIZE_RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
g_signal_connect (dialog->shell, "response",
G_CALLBACK (response_callback),
dialog);
g_object_weak_ref (G_OBJECT (dialog->shell),
(GWeakNotify) g_free,
private);
gtk_window_set_resizable (GTK_WINDOW (dialog->shell), FALSE);
}
/* the main vbox */
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->shell)->vbox),
main_vbox);
/* the pixel dimensions frame */
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
table = gtk_table_new (6, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacing (GTK_TABLE (table), 1, 4);
gtk_table_set_row_spacing (GTK_TABLE (table), 3, 4);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* the original width & height labels */
label = gtk_label_new (_("Current Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Current Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
private->orig_width_label = gtk_label_new ("");
gtk_misc_set_alignment (GTK_MISC (private->orig_width_label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), private->orig_width_label, 1, 2, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->orig_width_label);
private->orig_height_label = gtk_label_new ("");
gtk_misc_set_alignment (GTK_MISC (private->orig_height_label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), private->orig_height_label, 1, 2, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->orig_height_label);
/* the new size labels */
label = gtk_label_new (_("New Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("New Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
/* the new size sizeentry */
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
private->size_se = gimp_size_entry_new (1, unit, "%a",
TRUE, TRUE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (private->size_se), 1, 4);
gtk_table_set_row_spacing (GTK_TABLE (private->size_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->size_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (private->size_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), private->size_se, 1, 2, 2, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->size_se);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se), 0,
resolution_x, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se), 1,
resolution_y, FALSE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->size_se), 0,
GIMP_MIN_IMAGE_SIZE,
GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->size_se), 1,
GIMP_MIN_IMAGE_SIZE,
GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->size_se), 0, 0, width);
gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->size_se), 1, 0, height);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se), 0, width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se), 1, height);
g_signal_connect (private->size_se, "value_changed",
G_CALLBACK (size_callback),
dialog);
g_signal_connect (private->size_se, "unit_changed",
G_CALLBACK (orig_labels_update),
dialog);
/* initialize the original width & height labels */
orig_labels_update (private->size_se, dialog);
/* the scale ratio labels */
label = gtk_label_new (_("X Ratio:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 4, 5,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Y Ratio:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 5, 6,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
/* a table for the spinbuttons and the chainbutton */
hbox = gtk_hbox_new (FALSE, 0);
gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 4, 6,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (hbox);
table2 = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table2), 0, 2);
gtk_table_set_row_spacing (GTK_TABLE (table2), 0, 2);
gtk_box_pack_start (GTK_BOX (hbox), table2, FALSE, FALSE, 0);
gtk_widget_show (table2);
/* the scale ratio spinbuttons */
spinbutton =
gimp_spin_button_new (&private->ratio_x_adj,
dialog->ratio_x,
(double) GIMP_MIN_IMAGE_SIZE / (double) dialog->width,
(double) GIMP_MAX_IMAGE_SIZE / (double) dialog->width,
0.01, 0.1, 1,
0.01, 4);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 0, 1);
gtk_widget_show (spinbutton);
g_signal_connect (private->ratio_x_adj, "value_changed",
G_CALLBACK (ratio_callback),
dialog);
spinbutton =
gimp_spin_button_new (&private->ratio_y_adj,
dialog->ratio_y,
(double) GIMP_MIN_IMAGE_SIZE / (double) dialog->height,
(double) GIMP_MAX_IMAGE_SIZE / (double) dialog->height,
0.01, 0.1, 1,
0.01, 4);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 1, 2);
gtk_widget_show (spinbutton);
g_signal_connect (private->ratio_y_adj, "value_changed",
G_CALLBACK (ratio_callback),
dialog);
/* the constrain ratio chainbutton */
private->constrain = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (private->constrain), TRUE);
gtk_table_attach (GTK_TABLE (table2), private->constrain, 1, 2, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->constrain);
gimp_help_set_help_data (GIMP_CHAIN_BUTTON (private->constrain)->button,
_("Constrain aspect ratio"), NULL);
gtk_widget_show (vbox);
/* the offset frame */
if (type == RESIZE_DIALOG)
{
GtkWidget *button;
GtkWidget *abox;
frame = gimp_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* the offset sizeentry */
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
private->offset_se = gimp_size_entry_new (1, unit, "%a",
TRUE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (private->offset_se), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (private->offset_se), 1, 4);
gtk_table_set_col_spacing (GTK_TABLE (private->offset_se), 3, 8);
gtk_table_set_row_spacing (GTK_TABLE (private->offset_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->offset_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (private->offset_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
_("_X:"), 0, 0, 0.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
_("_Y:"), 1, 0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), private->offset_se, FALSE, FALSE, 0);
gtk_widget_show (private->offset_se);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->offset_se), 0,
resolution_x, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->offset_se), 1,
resolution_y, FALSE);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 0, 0, 0);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 1, 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 0, 0);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 1, 0);
g_signal_connect (private->offset_se, "value_changed",
G_CALLBACK (offset_update),
dialog);
button = gtk_button_new_with_mnemonic (_("C_enter"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 4, 0);
gtk_table_attach_defaults (GTK_TABLE (private->offset_se), button,
4, 5, 1, 2);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (offset_center_clicked),
dialog);
/* frame to hold GimpOffsetArea */
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
gtk_widget_show (abox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (abox), frame);
private->offset_area = gimp_offset_area_new (private->old_width,
private->old_height);
gtk_container_add (GTK_CONTAINER (frame), private->offset_area);
gtk_widget_show (private->offset_area);
{
GdkPixbuf *pixbuf;
gint w, h;
gimp_viewable_get_preview_size (viewable, 200, FALSE, TRUE, &w, &h);
pixbuf = gimp_viewable_get_pixbuf (viewable, w, h);
gimp_offset_area_set_pixbuf (GIMP_OFFSET_AREA (private->offset_area),
pixbuf);
}
g_signal_connect (private->offset_area, "offsets_changed",
G_CALLBACK (offset_area_offsets_changed),
dialog);
gtk_widget_show (frame);
}
/* the resolution stuff */
if ((type == SCALE_DIALOG) && (dialog->target == RESIZE_IMAGE))
{
frame = gimp_frame_new (_("Print Size & Display Unit"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
table = gtk_table_new (4, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_table_set_row_spacing (GTK_TABLE (table), 1, 4);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* the print size labels */
label = gtk_label_new (_("New Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("New Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
/* the print size sizeentry */
hbox = gtk_hbox_new (FALSE, 0);
gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (hbox);
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
hbox = gtk_hbox_new (FALSE, 0);
gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (hbox);
private->printsize_se = gimp_size_entry_new (1, unit, "%a",
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gtk_table_set_col_spacing (GTK_TABLE (private->printsize_se), 1, 4);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->printsize_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_box_pack_start (GTK_BOX (hbox),
private->printsize_se, FALSE, FALSE, 0);
gtk_widget_show (private->printsize_se);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
0, resolution_x, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
1, resolution_y, FALSE);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->printsize_se),
0, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->printsize_se),
1, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
0, dialog->width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
1, dialog->height);
g_signal_connect (private->printsize_se, "value_changed",
G_CALLBACK (printsize_update),
dialog);
g_signal_connect (private->printsize_se, "unit_changed",
G_CALLBACK (unit_update),
dialog);
/* the resolution labels */
label = gtk_label_new (_("X Resolution:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Y Resolution:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
/* the resolution sizeentry */
spinbutton = gimp_spin_button_new (&adjustment,
1, 1, 1, 1, 10, 1,
1, 2);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), SB_WIDTH);
private->resolution_se =
gimp_size_entry_new (1, config->default_image->resolution_unit,
_("pixels/%a"),
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_RESOLUTION);
gtk_table_set_col_spacing (GTK_TABLE (private->resolution_se), 1, 2);
gtk_table_set_col_spacing (GTK_TABLE (private->resolution_se), 2, 2);
gtk_table_set_row_spacing (GTK_TABLE (private->resolution_se), 0, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->resolution_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_table_attach_defaults (GTK_TABLE (private->resolution_se), spinbutton,
1, 2, 0, 1);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), private->resolution_se, 1, 2, 2, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->resolution_se);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->resolution_se),
0, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->resolution_se),
1, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
0, dialog->resolution_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
1, dialog->resolution_y);
g_signal_connect (private->resolution_se, "value_changed",
G_CALLBACK (resolution_callback),
dialog);
/* the resolution chainbutton */
private->equal_res = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
gimp_chain_button_set_active
(GIMP_CHAIN_BUTTON (private->equal_res),
ABS (dialog->resolution_x - dialog->resolution_y) < 1e-5);
gtk_table_attach_defaults (GTK_TABLE (private->resolution_se),
private->equal_res, 2, 3, 0, 2);
gtk_widget_show (private->equal_res);
gtk_widget_show (table);
gtk_widget_show (vbox);
}
/* the interpolation menu */
if (type == SCALE_DIALOG)
{
GtkWidget *hbox;
GtkWidget *combo;
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Interpolation:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (GIMP_TYPE_INTERPOLATION_TYPE);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
dialog->interpolation);
g_signal_connect (combo, "changed",
G_CALLBACK (gimp_int_combo_box_get_active),
&dialog->interpolation);
gtk_box_pack_start (GTK_BOX (hbox), combo, FALSE, FALSE, 0);
gtk_widget_show (combo);
private->interpolation_menu = combo;
if (gimp_image_base_type (dialog->gimage) == GIMP_INDEXED)
{
label = gtk_label_new (_("Indexed color layers are always scaled "
"without interpolation. The chosen "
"interpolation type will affect scaling "
"channels and masks only."));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);
gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (main_vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
}
}
gtk_widget_show (main_vbox);
/* finally, activate the first entry */
gimp_size_entry_grab_focus (GIMP_SIZE_ENTRY (private->size_se));
return dialog;
}
static gint
resize_bound_off_x (ResizeDialog *dialog,
gint off_x)
{
ResizePrivate *private = (ResizePrivate *) dialog;
if (private->old_width <= dialog->width)
off_x = CLAMP (off_x, 0, (dialog->width - private->old_width));
else
off_x = CLAMP (off_x, (dialog->width - private->old_width), 0);
return off_x;
}
static gint
resize_bound_off_y (ResizeDialog *dialog,
gint off_y)
{
ResizePrivate *private = (ResizePrivate *) dialog;
if (private->old_height <= dialog->height)
off_y = CLAMP (off_y, 0, (dialog->height - private->old_height));
else
off_y = CLAMP (off_y, (dialog->height - private->old_height), 0);
return off_y;
}
static void
orig_labels_update (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
GimpUnit unit;
gchar format_buf[16];
gchar buf[32];
static GimpUnit label_unit = GIMP_UNIT_PIXEL;
unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
if (unit != GIMP_UNIT_PERCENT)
label_unit = unit;
if (label_unit) /* unit != GIMP_UNIT_PIXEL */
{
gdouble unit_factor = gimp_unit_get_factor (label_unit);
g_snprintf (format_buf, sizeof (format_buf), "%%.%df %s",
gimp_unit_get_digits (label_unit) + 1,
gimp_unit_get_symbol (label_unit));
g_snprintf (buf, sizeof (buf), format_buf,
private->old_width * unit_factor / private->old_res_x);
gtk_label_set_text (GTK_LABEL (private->orig_width_label), buf);
g_snprintf (buf, sizeof (buf), format_buf,
private->old_height * unit_factor / private->old_res_y);
gtk_label_set_text (GTK_LABEL (private->orig_height_label), buf);
}
else /* unit == GIMP_UNIT_PIXEL */
{
g_snprintf (buf, sizeof (buf), "%d", private->old_width);
gtk_label_set_text (GTK_LABEL (private->orig_width_label), buf);
g_snprintf (buf, sizeof (buf), "%d", private->old_height);
gtk_label_set_text (GTK_LABEL (private->orig_height_label), buf);
}
}
static void
unit_update (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
dialog->unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
}
static void
offset_update (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
dialog->offset_x = resize_bound_off_x (dialog,
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 0)));
dialog->offset_y = resize_bound_off_y (dialog,
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 1)));
gimp_offset_area_set_offsets (GIMP_OFFSET_AREA (private->offset_area),
dialog->offset_x, dialog->offset_y);
}
static void
offset_center_clicked (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
gint off_x, off_y;
off_x = resize_bound_off_x (dialog,
(dialog->width - private->old_width) / 2);
off_y = resize_bound_off_y (dialog,
(dialog->height - private->old_height) / 2);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 0, off_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 1, off_y);
g_signal_emit_by_name (private->offset_se, "value_changed", 0);
}
static void
response_callback (GtkWidget *widget,
gint response_id,
ResizeDialog *dialog)
{
ResizePrivate *private = (ResizePrivate *) dialog;
switch (response_id)
{
case RESIZE_RESPONSE_RESET:
/* restore size and ratio settings */
size_update (dialog, private->old_width, private->old_height, 1.0, 1.0);
if ((dialog->type == SCALE_DIALOG) && (dialog->target == RESIZE_IMAGE))
{
/* restore resolution settings */
resolution_update (dialog, private->old_res_x, private->old_res_y);
}
if (dialog->type == SCALE_DIALOG)
{
dialog->interpolation =
dialog->gimage->gimp->config->interpolation_type;
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (private->interpolation_menu),
dialog->interpolation);
}
break;
case GTK_RESPONSE_OK:
private->ok_callback (widget, private->ok_data);
break;
default:
gtk_widget_destroy (widget);
break;
}
}
static void
size_callback (GtkWidget *widget,
ResizeDialog *dialog)
{
ResizePrivate *private = (ResizePrivate *) dialog;
gdouble width;
gdouble height;
gdouble ratio_x;
gdouble ratio_y;
width = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 0);
height = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 1);
ratio_x = width / (gdouble) private->old_width;
ratio_y = height / (gdouble) private->old_height;
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->constrain)))
{
if (ratio_x != dialog->ratio_x)
{
ratio_y = ratio_x;
height = (gdouble) private->old_height * ratio_y;
height = CLAMP (height, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
}
else
{
ratio_x = ratio_y;
width = (gdouble) private->old_width * ratio_x;
width = CLAMP (width, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
}
}
size_update (dialog, width, height, ratio_x, ratio_y);
}
static void
ratio_callback (GtkWidget *widget,
ResizeDialog *dialog)
{
ResizePrivate *private = (ResizePrivate *) dialog;
gdouble width;
gdouble height;
gdouble ratio_x;
gdouble ratio_y;
ratio_x = GTK_ADJUSTMENT (private->ratio_x_adj)->value;
ratio_y = GTK_ADJUSTMENT (private->ratio_y_adj)->value;
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->constrain)))
{
if (ratio_x != dialog->ratio_x)
{
ratio_y = ratio_x;
}
else
{
ratio_x = ratio_y;
}
}
width = CLAMP (private->old_width * ratio_x,
GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
height = CLAMP (private->old_height * ratio_y,
GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
size_update (dialog, width, height, ratio_x, ratio_y);
}
static void
size_update (ResizeDialog *dialog,
double width,
double height,
double ratio_x,
double ratio_y)
{
ResizePrivate *private = (ResizePrivate *) dialog;
dialog->width = (gint) (width + 0.5);
dialog->height = (gint) (height + 0.5);
dialog->ratio_x = ratio_x;
dialog->ratio_y = ratio_y;
if (private->offset_area)
gimp_offset_area_set_size (GIMP_OFFSET_AREA (private->offset_area),
dialog->width, dialog->height);
g_signal_handlers_block_by_func (private->size_se,
size_callback, dialog);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
0, width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
1, height);
g_signal_handlers_unblock_by_func (private->size_se,
size_callback, dialog);
g_signal_handlers_block_by_func (private->ratio_x_adj,
ratio_callback, dialog);
g_signal_handlers_block_by_func (private->ratio_y_adj,
ratio_callback, dialog);
gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_x_adj), ratio_x);
gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_y_adj), ratio_y);
g_signal_handlers_unblock_by_func (private->ratio_x_adj,
ratio_callback, dialog);
g_signal_handlers_unblock_by_func (private->ratio_y_adj,
ratio_callback, dialog);
if (dialog->type == RESIZE_DIALOG)
{
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 0,
MIN (0, dialog->width - private->old_width),
MAX (0, dialog->width - private->old_width));
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 1,
MIN (0, dialog->height - private->old_height),
MAX (0, dialog->height - private->old_height));
}
if ((dialog->type == SCALE_DIALOG) && (dialog->target == RESIZE_IMAGE))
{
g_signal_handlers_block_by_func (private->printsize_se,
printsize_update, dialog);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
0, width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
1, height);
g_signal_handlers_unblock_by_func (private->printsize_se,
printsize_update, dialog);
}
}
static void
offset_area_offsets_changed (GtkWidget *offset_area,
gint offset_x,
gint offset_y,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
dialog->offset_x = offset_x;
dialog->offset_y = offset_y;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
0, dialog->offset_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
1, dialog->offset_y);
}
static void
printsize_update (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
gdouble width;
gdouble height;
gdouble print_width;
gdouble print_height;
gdouble res_x;
gdouble res_y;
width = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 0);
height = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 1);
print_width =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->printsize_se), 0);
print_height =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->printsize_se), 1);
/* this is tricky: we use the sizes in pixels (which is otherwise
* meaningless for the "print size" widgets) to calculate the new
* resolution.
*/
res_x = CLAMP (dialog->resolution_x * width / print_width,
GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
res_y = CLAMP (dialog->resolution_y * height / print_height,
GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->equal_res)))
{
if (res_x != dialog->resolution_x)
{
res_y = res_x;
}
else
{
res_x = res_y;
}
}
dialog->resolution_x = res_x;
dialog->resolution_y = res_y;
g_signal_handlers_block_by_func (private->resolution_se,
resolution_callback,
dialog);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
0, res_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
1, res_y);
g_signal_handlers_unblock_by_func (private->resolution_se,
resolution_callback, dialog);
g_signal_handlers_block_by_func (private->size_se,
size_callback, dialog);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
0, res_x, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
1, res_y, TRUE);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
0, width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
1, height);
g_signal_handlers_unblock_by_func (private->size_se,
size_callback, dialog);
g_signal_handlers_block_by_func (private->printsize_se,
printsize_update, dialog);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
0, res_x, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
1, res_y, TRUE);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
0, width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
1, height);
g_signal_handlers_unblock_by_func (private->printsize_se,
printsize_update, dialog);
}
/* Callback for resolution change. */
static void
resolution_callback (GtkWidget *widget,
gpointer data)
{
ResizeDialog *dialog = data;
ResizePrivate *private = (ResizePrivate *) dialog;
gdouble res_x;
gdouble res_y;
res_x =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->resolution_se), 0);
res_y =
gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->resolution_se), 1);
if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->equal_res)))
{
if (res_x != dialog->resolution_x)
{
res_y = res_x;
}
else
{
res_x = res_y;
}
}
resolution_update (dialog, res_x, res_y);
}
/* Update widgets with resolution settings found in given Resize struct. */
static void
resolution_update (ResizeDialog *dialog,
gdouble res_x,
gdouble res_y)
{
ResizePrivate *private = (ResizePrivate *) dialog;
dialog->resolution_x = res_x;
dialog->resolution_y = res_y;
g_signal_handlers_block_by_func (private->resolution_se,
resolution_callback, dialog);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
0, res_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
1, res_y);
g_signal_handlers_unblock_by_func (private->resolution_se,
resolution_callback, dialog);
g_signal_handlers_block_by_func (private->size_se,
size_callback, dialog);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
0, res_x, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
1, res_y, TRUE);
g_signal_handlers_unblock_by_func (private->size_se,
size_callback, dialog);
g_signal_handlers_block_by_func (private->printsize_se,
printsize_update, dialog);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
0, res_x, TRUE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
1, res_y, TRUE);
g_signal_handlers_unblock_by_func (private->printsize_se,
printsize_update, dialog);
}
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