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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 "core/core-types.h"
#include "core/gimp.h"
#include "core/gimpcoreconfig.h"
#include "core/gimpimage.h"
#include "core/gimplayer.h"
#include "resize-dialog.h"
#include "libgimp/gimpintl.h"
typedef struct _ResizePrivate ResizePrivate;
struct _ResizePrivate
{
Resize resize;
/* 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;
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 (Resize *resize,
gint off_x);
static gint resize_bound_off_y (Resize *resize,
gint off_y);
static void orig_labels_update (GtkWidget *widget,
gpointer data);
static void reset_callback (GtkWidget *widget,
gpointer data);
static void size_callback (GtkWidget *widget,
gpointer data);
static void ratio_callback (GtkWidget *widget,
gpointer data);
static void size_update (Resize *widget,
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 printsize_update (GtkWidget *widget,
gpointer data);
static void resolution_callback (GtkWidget *widget,
gpointer data);
static void resolution_update (Resize *resize,
gdouble res_x,
gdouble res_y);
Resize *
resize_widget_new (GimpImage *gimage,
ResizeType type,
ResizeTarget target,
GObject *object,
const gchar *signal,
gint width,
gint height,
gdouble resolution_x,
gdouble resolution_y,
GimpUnit unit,
gboolean dot_for_dot,
GCallback ok_cb,
GCallback cancel_cb,
gpointer user_data)
{
Resize *resize;
ResizePrivate *private;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *table2;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *spinbutton;
GtkWidget *abox;
GtkObject *adjustment;
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
g_return_val_if_fail (GIMP_IS_OBJECT (object), NULL);
abox = NULL;
frame = NULL;
private = g_new0 (ResizePrivate, 1);
private->old_width = width;
private->old_height = height;
private->old_res_x = resolution_x;
private->old_res_y = resolution_y;
resize = (Resize *) private;
resize->type = type;
resize->target = target;
resize->width = width;
resize->height = height;
resize->resolution_x = resolution_x;
resize->resolution_y = resolution_y;
resize->unit = unit;
resize->ratio_x = 1.0;
resize->ratio_y = 1.0;
resize->offset_x = 0;
resize->offset_y = 0;
/* dialog box */
{
const gchar *wmclass = NULL;
const gchar *window_title = NULL;
gchar *help_page = NULL;
switch (type)
{
case ScaleWidget:
switch (target)
{
case ResizeLayer:
wmclass = "scale_layer";
window_title = _("Scale Layer");
help_page = "layers/dialogs/scale_layer.html";
frame = gtk_frame_new (_("Size"));
break;
case ResizeImage:
wmclass = "scale_image";
window_title = _("Scale Image");
help_page = "dialogs/scale_image.html";
frame = gtk_frame_new (_("Pixel Dimensions"));
break;
}
break;
case ResizeWidget:
switch (target)
{
case ResizeLayer:
wmclass = "resize_layer";
window_title = _("Set Layer Boundary Size");
help_page = "layers/dialogs/layer_boundary_size.html";
break;
case ResizeImage:
wmclass = "resize_image";
window_title = _("Set Canvas Size");
help_page = "dialogs/set_canvas_size.html";
break;
}
frame = gtk_frame_new (_("Size"));
break;
}
resize->resize_shell =
gimp_dialog_new (window_title, wmclass,
gimp_standard_help_func, help_page,
GTK_WIN_POS_MOUSE,
FALSE, FALSE, TRUE,
GTK_STOCK_OK, ok_cb,
user_data, NULL, NULL, TRUE, FALSE,
_("Reset"), reset_callback,
resize, NULL, NULL, FALSE, FALSE,
GTK_STOCK_CANCEL, cancel_cb ? cancel_cb : G_CALLBACK (gtk_widget_destroy),
cancel_cb ? user_data : NULL,
cancel_cb ? NULL : (gpointer) 1,
NULL, FALSE, TRUE,
NULL);
g_object_weak_ref (G_OBJECT (resize->resize_shell),
(GWeakNotify) g_free,
private);
}
/* handle the image disappearing under our feet */
if (object && signal)
{
if (cancel_cb)
g_signal_connect (G_OBJECT (object), signal,
cancel_cb,
user_data);
else
g_signal_connect_object (G_OBJECT (object), signal,
G_CALLBACK (gtk_widget_destroy),
G_OBJECT (resize->resize_shell),
G_CONNECT_SWAPPED);
}
/* the main vbox */
main_vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (resize->resize_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_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
table = gtk_table_new (6, 2, FALSE);
gtk_container_set_border_width (GTK_CONTAINER (table), 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
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_table_set_row_spacing (GTK_TABLE (table), 4, 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
/* the original width & height labels */
label = gtk_label_new (_("Original Width:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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 (_("Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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), 1.0, 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 (_("Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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 */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
private->size_se =
gimp_size_entry_new (1, unit, "%a", TRUE, TRUE, FALSE, 75,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
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);
if (dot_for_dot)
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->size_se),
GIMP_UNIT_PIXEL);
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 (G_OBJECT (private->size_se), "value_changed",
G_CALLBACK (size_callback),
resize);
g_signal_connect (G_OBJECT (private->size_se), "unit_changed",
G_CALLBACK (orig_labels_update),
resize);
/* initialize the original width & height labels */
orig_labels_update (private->size_se, resize);
/* the scale ratio labels */
label = gtk_label_new (_("Ratio X:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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 */
abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
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_container_add (GTK_CONTAINER (abox), table2);
gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 4, 6,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (abox);
/* the scale ratio spinbuttons */
private->ratio_x_adj =
gtk_adjustment_new (resize->ratio_x,
(double) GIMP_MIN_IMAGE_SIZE / (double) resize->width,
(double) GIMP_MAX_IMAGE_SIZE / (double) resize->width,
0.01, 0.1, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (private->ratio_x_adj), 1, 4);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 0, 1);
gtk_widget_show (spinbutton);
g_signal_connect (G_OBJECT ( private->ratio_x_adj), "value_changed",
G_CALLBACK (ratio_callback),
resize);
private->ratio_y_adj =
gtk_adjustment_new (resize->ratio_y,
(double) GIMP_MIN_IMAGE_SIZE / (double) resize->height,
(double) GIMP_MAX_IMAGE_SIZE / (double) resize->height,
0.01, 0.1, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (private->ratio_y_adj), 1, 4);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 1, 2);
gtk_widget_show (spinbutton);
g_signal_connect (G_OBJECT ( private->ratio_y_adj), "value_changed",
G_CALLBACK (ratio_callback),
resize);
/* 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_defaults (GTK_TABLE (table2), private->constrain, 1, 2, 0, 2);
gtk_widget_show (private->constrain);
gtk_widget_show (table2);
gtk_widget_show (table);
gtk_widget_show (vbox);
/* the offset frame */
if (type == ResizeWidget)
{
frame = gtk_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
/* the offset sizeentry */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
private->offset_se =
gimp_size_entry_new (1, unit, "%a", TRUE, FALSE, FALSE, 75,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
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_table_set_col_spacing (GTK_TABLE (private->offset_se), 0, 4);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
_("X:"), 0, 0, 1.0);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
_("Y:"), 1, 0, 1.0);
gtk_widget_show (spinbutton);
gtk_container_add (GTK_CONTAINER (abox), private->offset_se);
gtk_widget_show (private->offset_se);
if (dot_for_dot)
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->offset_se),
GIMP_UNIT_PIXEL);
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 (G_OBJECT (private->offset_se), "value_changed",
G_CALLBACK (offset_update),
resize);
gtk_widget_show (abox);
/* 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);
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);
g_signal_connect (G_OBJECT (private->offset_area), "offsets_changed",
G_CALLBACK (offset_area_offsets_changed),
resize);
gtk_widget_show (frame);
gtk_widget_show (abox);
gtk_widget_show (vbox);
}
/* the resolution stuff */
if ((type == ScaleWidget) && (target == ResizeImage))
{
frame = gtk_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, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
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_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), 1.0, 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 (_("Height:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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 */
abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
gtk_container_add (GTK_CONTAINER (abox), spinbutton);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (abox);
abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
private->printsize_se =
gimp_size_entry_new (1, unit, "%a", FALSE, FALSE, FALSE, 75,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->printsize_se),
GTK_SPIN_BUTTON (spinbutton), NULL);
gtk_container_add (GTK_CONTAINER (abox), private->printsize_se);
gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->printsize_se);
gtk_widget_show (abox);
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, resize->width);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
1, resize->height);
g_signal_connect (G_OBJECT (private->printsize_se), "value_changed",
G_CALLBACK (printsize_update),
resize);
g_signal_connect (G_OBJECT (private->printsize_se), "unit_changed",
G_CALLBACK (unit_update),
resize);
/* the resolution labels */
label = gtk_label_new (_("Resolution X:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 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 */
adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gtk_widget_set_usize (spinbutton, 75, 0);
private->resolution_se =
gimp_size_entry_new (1, gimage->gimp->config->default_resolution_units,
_("pixels/%a"),
FALSE, FALSE, FALSE, 75,
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);
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, resize->resolution_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
1, resize->resolution_y);
g_signal_connect (G_OBJECT (private->resolution_se), "value_changed",
G_CALLBACK (resolution_callback),
resize);
/* 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 (resize->resolution_x - resize->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);
}
gtk_widget_show (main_vbox);
/* finally, activate the first entry */
gimp_size_entry_grab_focus (GIMP_SIZE_ENTRY (private->size_se));
return resize;
}
static gint
resize_bound_off_x (Resize *resize,
gint off_x)
{
ResizePrivate *private;
private = (ResizePrivate *) resize;
if (private->old_width <= resize->width)
off_x = CLAMP (off_x, 0, (resize->width - private->old_width));
else
off_x = CLAMP (off_x, (resize->width - private->old_width), 0);
return off_x;
}
static gint
resize_bound_off_y (Resize *resize,
gint off_y)
{
ResizePrivate *private;
private = (ResizePrivate *) resize;
if (private->old_height <= resize->height)
off_y = CLAMP (off_y, 0, (resize->height - private->old_height));
else
off_y = CLAMP (off_y, (resize->height - private->old_height), 0);
return off_y;
}
static void
orig_labels_update (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
GimpUnit unit;
gchar format_buf[16];
gchar buf[32];
static GimpUnit label_unit = GIMP_UNIT_PIXEL;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
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)
{
Resize *resize;
resize = (Resize *) data;
resize->unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
}
static void
offset_update (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
resize->offset_x = resize_bound_off_x (resize,
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 0)));
resize->offset_y = resize_bound_off_y (resize,
RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 1)));
gimp_offset_area_set_offsets (GIMP_OFFSET_AREA (private->offset_area),
resize->offset_x, resize->offset_y);
}
static void
reset_callback (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
resize = (Resize *) data;
private = (ResizePrivate *)resize;
/* restore size and ratio settings */
size_update (resize, private->old_width, private->old_height, 1.0, 1.0);
if ((resize->type == ScaleWidget) && (resize->target == ResizeImage))
{
/* restore resolution settings */
resolution_update (resize, private->old_res_x, private->old_res_y);
}
}
static void
size_callback (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
gdouble width;
gdouble height;
gdouble ratio_x;
gdouble ratio_y;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
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 != resize->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 (resize, width, height, ratio_x, ratio_y);
}
static void
ratio_callback (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
gdouble width;
gdouble height;
gdouble ratio_x;
gdouble ratio_y;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
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 = 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 != resize->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 (resize, width, height, ratio_x, ratio_y);
}
static void
size_update (Resize *resize,
double width,
double height,
double ratio_x,
double ratio_y)
{
ResizePrivate *private;
private = (ResizePrivate *) resize;
resize->width = (gint) (width + 0.5);
resize->height = (gint) (height + 0.5);
resize->ratio_x = ratio_x;
resize->ratio_y = ratio_y;
if (private->offset_area)
gimp_offset_area_set_size (GIMP_OFFSET_AREA (private->offset_area),
resize->width, resize->height);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->ratio_x_adj), resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->ratio_y_adj), resize);
gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_x_adj), ratio_x);
gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_y_adj), ratio_y);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->ratio_x_adj), resize);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->ratio_y_adj), resize);
if (resize->type == ResizeWidget)
{
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 0,
MIN (0, resize->width - private->old_width),
MAX (0, resize->width - private->old_width));
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (private->offset_se), 1,
MIN (0, resize->height - private->old_height),
MAX (0, resize->height - private->old_height));
}
if ((resize->type == ScaleWidget) && (resize->target == ResizeImage))
{
gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se),
resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
resize);
}
}
static void
offset_area_offsets_changed (GtkWidget *offset_area,
gint offset_x,
gint offset_y,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
resize->offset_x = offset_x;
resize->offset_y = offset_y;
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
0, resize->offset_x);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
1, resize->offset_y);
}
static void
printsize_update (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
gdouble width;
gdouble height;
gdouble print_width;
gdouble print_height;
gdouble res_x;
gdouble res_y;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
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 (resize->resolution_x * width / print_width,
GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
res_y = CLAMP (resize->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 != resize->resolution_x)
{
res_y = res_x;
}
else
{
res_x = res_y;
}
}
resize->resolution_x = res_x;
resize->resolution_y = res_y;
gtk_signal_handler_block_by_data (GTK_OBJECT (private->resolution_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->resolution_se),
resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
resize);
}
/* Callback for resolution change. */
static void
resolution_callback (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
gdouble res_x;
gdouble res_y;
resize = (Resize *) data;
private = (ResizePrivate *) resize;
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 != resize->resolution_x)
{
res_y = res_x;
}
else
{
res_x = res_y;
}
}
resolution_update (resize, res_x, res_y);
}
/* Update widgets with resolution settings found in given Resize struct. */
static void
resolution_update (Resize *resize,
gdouble res_x,
gdouble res_y)
{
ResizePrivate *private;
private = (ResizePrivate *) resize;
resize->resolution_x = res_x;
resize->resolution_y = res_y;
gtk_signal_handler_block_by_data (GTK_OBJECT (private->resolution_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->resolution_se),
resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se), resize);
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);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
resize);
}
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