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gimp/app/dialogs/print-size-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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "dialogs-types.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimp-utils.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "print-size-dialog.h"
#include "gimp-intl.h"
#define RESPONSE_RESET 1
#define SB_WIDTH 8
typedef struct _PrintSizeDialog PrintSizeDialog;
struct _PrintSizeDialog
{
GimpImage *image;
GimpSizeEntry *size_entry;
GimpSizeEntry *resolution_entry;
GimpChainButton *chain;
gdouble xres;
gdouble yres;
GimpResolutionCallback callback;
gpointer user_data;
};
/* local function prototypes */
static void print_size_dialog_free (PrintSizeDialog *private);
static void print_size_dialog_response (GtkWidget *dialog,
gint response_id,
PrintSizeDialog *private);
static void print_size_dialog_reset (PrintSizeDialog *private);
static void print_size_dialog_size_changed (GtkWidget *widget,
PrintSizeDialog *private);
static void print_size_dialog_resolution_changed (GtkWidget *widget,
PrintSizeDialog *private);
static void print_size_dialog_set_size (PrintSizeDialog *private,
gdouble width,
gdouble height);
static void print_size_dialog_set_resolution (PrintSizeDialog *private,
gdouble xres,
gdouble yres);
/* public functions */
GtkWidget *
print_size_dialog_new (GimpImage *image,
GimpContext *context,
const gchar *title,
const gchar *role,
GtkWidget *parent,
GimpHelpFunc help_func,
const gchar *help_id,
GimpResolutionCallback callback,
gpointer user_data)
{
PrintSizeDialog *private;
GtkWidget *dialog;
GtkWidget *frame;
GtkWidget *grid;
GtkWidget *entry;
GtkWidget *label;
GtkWidget *width;
GtkWidget *height;
GtkWidget *hbox;
GtkWidget *chain;
GtkAdjustment *adj;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (callback != NULL, NULL);
private = g_slice_new0 (PrintSizeDialog);
private->image = image;
private->callback = callback;
private->user_data = user_data;
gimp_image_get_resolution (image, &private->xres, &private->yres);
dialog = gimp_viewable_dialog_new (g_list_prepend (NULL, image), context,
title, role,
GIMP_ICON_DOCUMENT_PRINT_RESOLUTION, title,
parent,
help_func, help_id,
_("_Reset"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog),
(GWeakNotify) print_size_dialog_free, private);
g_signal_connect (dialog, "response",
G_CALLBACK (print_size_dialog_response),
private);
frame = gimp_frame_new (_("Print Size"));
gtk_container_set_border_width (GTK_CONTAINER (frame), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 12);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
/* the print size entry */
adj = gtk_adjustment_new (1, 1, 1, 1, 10, 0);
width = gimp_spin_button_new (adj, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (width), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (width), SB_WIDTH);
adj = gtk_adjustment_new (1, 1, 1, 1, 10, 0);
height = gimp_spin_button_new (adj, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (height), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (height), SB_WIDTH);
entry = gimp_size_entry_new (0, gimp_get_default_unit (), "%n",
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
private->size_entry = GIMP_SIZE_ENTRY (entry);
label = gtk_label_new_with_mnemonic (_("_Width:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), width);
gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 1, 1);
gtk_widget_show (label);
label = gtk_label_new_with_mnemonic (_("H_eight:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), height);
gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
gtk_widget_show (label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_grid_attach (GTK_GRID (grid), hbox, 1, 0, 1, 2);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_grid_attach (GTK_GRID (entry), height, 0, 1, 1, 1);
gtk_widget_show (height);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (width), NULL);
gtk_grid_attach (GTK_GRID (entry), width, 0, 0, 1, 1);
gtk_widget_show (width);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 0,
private->xres, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 1,
private->yres, FALSE);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (entry), 0, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval_boundaries
(GIMP_SIZE_ENTRY (entry), 1, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 0,
gimp_image_get_width (image));
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 1,
gimp_image_get_height (image));
/* the resolution entry */
adj = gtk_adjustment_new (1, 1, 1, 1, 10, 0);
width = gimp_spin_button_new (adj, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (width), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (width), SB_WIDTH);
adj = gtk_adjustment_new (1, 1, 1, 1, 10, 0);
height = gimp_spin_button_new (adj, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (height), TRUE);
gtk_entry_set_width_chars (GTK_ENTRY (height), SB_WIDTH);
label = gtk_label_new_with_mnemonic (_("_X resolution:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), width);
gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
gtk_widget_show (label);
label = gtk_label_new_with_mnemonic (_("_Y resolution:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), height);
gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
gtk_widget_show (label);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_grid_attach (GTK_GRID (grid), hbox, 1, 2, 1, 2);
gtk_widget_show (hbox);
entry = gimp_size_entry_new (0, gimp_image_get_unit (image), _("pixels/%a"),
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_RESOLUTION);
private->resolution_entry = GIMP_SIZE_ENTRY (entry);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_grid_attach (GTK_GRID (entry), height, 0, 1, 1, 1);
gtk_widget_show (height);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (width), NULL);
gtk_grid_attach (GTK_GRID (entry), width, 0, 0, 1, 1);
gtk_widget_show (width);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 0,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 1,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 0, private->xres);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 1, private->yres);
chain = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
if (ABS (private->xres - private->yres) < GIMP_MIN_RESOLUTION)
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain), TRUE);
gtk_grid_attach (GTK_GRID (entry), chain, 1, 0, 1, 2);
gtk_widget_show (chain);
private->chain = GIMP_CHAIN_BUTTON (chain);
g_signal_connect (private->size_entry, "value-changed",
G_CALLBACK (print_size_dialog_size_changed),
private);
g_signal_connect (private->resolution_entry, "value-changed",
G_CALLBACK (print_size_dialog_resolution_changed),
private);
return dialog;
}
/* private functions */
static void
print_size_dialog_free (PrintSizeDialog *private)
{
g_slice_free (PrintSizeDialog, private);
}
static void
print_size_dialog_response (GtkWidget *dialog,
gint response_id,
PrintSizeDialog *private)
{
GimpSizeEntry *entry = private->resolution_entry;
switch (response_id)
{
case RESPONSE_RESET:
print_size_dialog_reset (private);
break;
case GTK_RESPONSE_OK:
private->callback (dialog,
private->image,
gimp_size_entry_get_refval (entry, 0),
gimp_size_entry_get_refval (entry, 1),
gimp_size_entry_get_unit (entry),
private->user_data);
break;
default:
gtk_widget_destroy (dialog);
break;
}
}
static void
print_size_dialog_reset (PrintSizeDialog *private)
{
gdouble xres, yres;
gimp_size_entry_set_unit (private->resolution_entry,
gimp_get_default_unit ());
gimp_image_get_resolution (private->image, &xres, &yres);
print_size_dialog_set_resolution (private, xres, yres);
}
static void
print_size_dialog_size_changed (GtkWidget *widget,
PrintSizeDialog *private)
{
GimpImage *image = private->image;
gdouble width;
gdouble height;
gdouble xres;
gdouble yres;
gdouble scale;
scale = gimp_unit_get_factor (gimp_size_entry_get_unit (private->size_entry));
width = gimp_size_entry_get_value (private->size_entry, 0);
height = gimp_size_entry_get_value (private->size_entry, 1);
xres = scale * gimp_image_get_width (image) / MAX (0.001, width);
yres = scale * gimp_image_get_height (image) / MAX (0.001, height);
xres = CLAMP (xres, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
yres = CLAMP (yres, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
print_size_dialog_set_resolution (private, xres, yres);
print_size_dialog_set_size (private,
gimp_image_get_width (image),
gimp_image_get_height (image));
}
static void
print_size_dialog_resolution_changed (GtkWidget *widget,
PrintSizeDialog *private)
{
GimpSizeEntry *entry = private->resolution_entry;
gdouble xres = gimp_size_entry_get_refval (entry, 0);
gdouble yres = gimp_size_entry_get_refval (entry, 1);
print_size_dialog_set_resolution (private, xres, yres);
}
static void
print_size_dialog_set_size (PrintSizeDialog *private,
gdouble width,
gdouble height)
{
g_signal_handlers_block_by_func (private->size_entry,
print_size_dialog_size_changed,
private);
gimp_size_entry_set_refval (private->size_entry, 0, width);
gimp_size_entry_set_refval (private->size_entry, 1, height);
g_signal_handlers_unblock_by_func (private->size_entry,
print_size_dialog_size_changed,
private);
}
static void
print_size_dialog_set_resolution (PrintSizeDialog *private,
gdouble xres,
gdouble yres)
{
if (private->chain && gimp_chain_button_get_active (private->chain))
{
if (xres != private->xres)
yres = xres;
else
xres = yres;
}
private->xres = xres;
private->yres = yres;
g_signal_handlers_block_by_func (private->resolution_entry,
print_size_dialog_resolution_changed,
private);
gimp_size_entry_set_refval (private->resolution_entry, 0, xres);
gimp_size_entry_set_refval (private->resolution_entry, 1, yres);
g_signal_handlers_unblock_by_func (private->resolution_entry,
print_size_dialog_resolution_changed,
private);
g_signal_handlers_block_by_func (private->size_entry,
print_size_dialog_size_changed,
private);
gimp_size_entry_set_resolution (private->size_entry, 0, xres, TRUE);
gimp_size_entry_set_resolution (private->size_entry, 1, yres, TRUE);
g_signal_handlers_unblock_by_func (private->size_entry,
print_size_dialog_size_changed,
private);
}
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