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gimp/modules/cdisplay_proof.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995-1997 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 <string.h>
#ifdef HAVE_LCMS_LCMS_H
#include <lcms/lcms.h>
#else
#include <lcms.h>
#endif
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmodule/gimpmodule.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "libgimpmath/gimpmath.h"
#include "libgimp/libgimp-intl.h"
#define CDISPLAY_TYPE_PROOF (cdisplay_proof_type)
#define CDISPLAY_PROOF(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CDISPLAY_TYPE_PROOF, CdisplayProof))
#define CDISPLAY_PROOF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CDISPLAY_TYPE_PROOF, CdisplayProofClass))
#define CDISPLAY_IS_PROOF(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CDISPLAY_TYPE_PROOF))
#define CDISPLAY_IS_PROOF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CDISPLAY_TYPE_PROOF))
typedef struct _CdisplayProof CdisplayProof;
typedef struct _CdisplayProofClass CdisplayProofClass;
struct _CdisplayProof
{
GimpColorDisplay parent_instance;
gint intent;
gboolean bpc;
gchar *filename;
cmsHTRANSFORM transform;
GtkWidget *table;
GtkWidget *combo;
GtkWidget *toggle;
};
struct _CdisplayProofClass
{
GimpColorDisplayClass parent_instance;
};
static GType cdisplay_proof_get_type (GTypeModule *module);
static void cdisplay_proof_class_init (CdisplayProofClass *klass);
static void cdisplay_proof_init (CdisplayProof *proof);
static void cdisplay_proof_finalize (GObject *object);
static GimpColorDisplay * cdisplay_proof_clone (GimpColorDisplay *display);
static void cdisplay_proof_convert (GimpColorDisplay *display,
guchar *buf,
gint width,
gint height,
gint bpp,
gint bpl);
static void cdisplay_proof_load_state (GimpColorDisplay *display,
GimpParasite *state);
static GimpParasite * cdisplay_proof_save_state (GimpColorDisplay *display);
static GtkWidget * cdisplay_proof_configure (GimpColorDisplay *display);
static void cdisplay_proof_configure_reset (GimpColorDisplay *display);
static void cdisplay_proof_changed (GimpColorDisplay *display);
static void proof_intent_callback (GtkWidget *widget,
CdisplayProof *proof);
static void proof_bpc_callback (GtkWidget *widget,
CdisplayProof *proof);
static void proof_file_callback (GtkWidget *widget,
CdisplayProof *proof);
static const GimpModuleInfo cdisplay_proof_info =
{
GIMP_MODULE_ABI_VERSION,
N_("Color proof filter using ICC color profile"),
"Banlu Kemiyatorn <id@project-ile.net>",
"v0.1",
"(c) 2002-2003, released under the GPL",
"November 14, 2003"
};
static GType cdisplay_proof_type = 0;
static GimpColorDisplayClass *parent_class = NULL;
G_MODULE_EXPORT const GimpModuleInfo *
gimp_module_query (GTypeModule *module)
{
return &cdisplay_proof_info;
}
G_MODULE_EXPORT gboolean
gimp_module_register (GTypeModule *module)
{
cdisplay_proof_get_type (module);
return TRUE;
}
static GType
cdisplay_proof_get_type (GTypeModule *module)
{
if (! cdisplay_proof_type)
{
static const GTypeInfo display_info =
{
sizeof (CdisplayProofClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) cdisplay_proof_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (CdisplayProof),
0, /* n_preallocs */
(GInstanceInitFunc) cdisplay_proof_init,
};
cdisplay_proof_type =
g_type_module_register_type (module, GIMP_TYPE_COLOR_DISPLAY,
"CdisplayProof", &display_info, 0);
}
return cdisplay_proof_type;
}
static void
cdisplay_proof_class_init (CdisplayProofClass *klass)
{
GObjectClass *object_class;
GimpColorDisplayClass *display_class;
object_class = G_OBJECT_CLASS (klass);
display_class = GIMP_COLOR_DISPLAY_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = cdisplay_proof_finalize;
display_class->name = _("Color Proof");
display_class->help_id = "gimp-colordisplay-proof";
display_class->clone = cdisplay_proof_clone;
display_class->convert = cdisplay_proof_convert;
display_class->load_state = cdisplay_proof_load_state;
display_class->save_state = cdisplay_proof_save_state;
display_class->configure = cdisplay_proof_configure;
display_class->configure_reset = cdisplay_proof_configure_reset;
display_class->changed = cdisplay_proof_changed;
cmsErrorAction (LCMS_ERROR_IGNORE);
}
static void
cdisplay_proof_init (CdisplayProof *proof)
{
proof->intent = INTENT_PERCEPTUAL;
proof->bpc = FALSE;
proof->transform = NULL;
proof->filename = NULL;
proof->table = NULL;
cdisplay_proof_changed (GIMP_COLOR_DISPLAY (proof));
}
static void
cdisplay_proof_finalize (GObject *object)
{
CdisplayProof *proof = CDISPLAY_PROOF (object);
if (proof->table)
gtk_widget_destroy (proof->table);
if (proof->filename)
{
g_free (proof->filename);
proof->filename = NULL;
}
if (proof->transform)
{
cmsDeleteTransform (proof->transform);
proof->transform = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GimpColorDisplay *
cdisplay_proof_clone (GimpColorDisplay *display)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
CdisplayProof *copy;
copy = CDISPLAY_PROOF (gimp_color_display_new (G_TYPE_FROM_INSTANCE (proof)));
copy->intent = proof->intent;
copy->bpc = proof->bpc;
copy->filename = g_strdup (proof->filename);
cdisplay_proof_changed (GIMP_COLOR_DISPLAY (copy));
return GIMP_COLOR_DISPLAY (copy);
}
static void
cdisplay_proof_convert (GimpColorDisplay *display,
guchar *buf,
gint width,
gint height,
gint bpp,
gint bpl)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
gint y;
if (bpp != 3)
return;
if (! proof->transform)
return;
for (y = 0; y < height; y++, buf += bpl)
cmsDoTransform (proof->transform, buf, buf, width);
}
static void
cdisplay_proof_load_state (GimpColorDisplay *display,
GimpParasite *state)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
const gchar *str;
str = gimp_parasite_data (state);
if (str[gimp_parasite_data_size (state) - 1] == '\0')
{
gchar **tokens = g_strsplit (str, ",", 3);
if (tokens[0] && tokens[1] && tokens[2])
{
g_free (proof->filename);
proof->intent = atoi (tokens[0]);
proof->bpc = atoi (tokens[1]) ? TRUE : FALSE;
proof->filename = tokens[2];
}
g_strfreev (tokens);
}
}
static GimpParasite *
cdisplay_proof_save_state (GimpColorDisplay *display)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
GimpParasite *state;
gchar *str;
str = g_strdup_printf ("%d,%d,%s",
proof->intent,
proof->bpc,
proof->filename ? proof->filename : "");
state = gimp_parasite_new ("Display/Proof", GIMP_PARASITE_PERSISTENT,
strlen (str) + 1, str);
g_free (str);
return state;
}
static GtkWidget *
cdisplay_proof_configure (GimpColorDisplay *display)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
GtkWidget *entry;
if (proof->table)
gtk_widget_destroy (proof->table);
proof->table = gtk_table_new (3, 2, FALSE);
g_signal_connect (proof->table, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&proof->table);
gtk_table_set_col_spacings (GTK_TABLE (proof->table), 4);
gtk_table_set_row_spacings (GTK_TABLE (proof->table), 2);
proof->combo = gimp_int_combo_box_new (_("Perceptual"),
INTENT_PERCEPTUAL,
_("Relative Colorimetric"),
INTENT_RELATIVE_COLORIMETRIC,
_("Saturation"),
INTENT_SATURATION,
_("Absolute Colorimetric"),
INTENT_ABSOLUTE_COLORIMETRIC,
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (proof->combo),
proof->intent);
g_signal_connect (proof->combo, "changed",
G_CALLBACK (proof_intent_callback),
proof);
gimp_table_attach_aligned (GTK_TABLE (proof->table), 0, 0,
_("_Intent:"), 1.0, 0.5,
proof->combo, 1, TRUE);
entry = gimp_file_entry_new (_("Choose an ICC Color Profile"),
proof->filename, FALSE, FALSE);
gimp_table_attach_aligned (GTK_TABLE (proof->table), 0, 1,
_("_Profile:"), 1.0, 0.5,
entry, 1, FALSE);
g_signal_connect (entry, "filename-changed",
G_CALLBACK (proof_file_callback),
proof);
proof->toggle =
gtk_check_button_new_with_mnemonic (_("_Black Point Compensation"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (proof->toggle), proof->bpc);
gtk_table_attach_defaults (GTK_TABLE (proof->table),
proof->toggle, 1, 2, 2, 3);
gtk_widget_show (proof->toggle);
g_signal_connect (proof->toggle, "clicked",
G_CALLBACK (proof_bpc_callback),
proof);
return proof->table;
}
static void
cdisplay_proof_configure_reset (GimpColorDisplay * display)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
proof->intent = INTENT_PERCEPTUAL;
proof->bpc = FALSE;
if (proof->table)
{
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (proof->combo),
INTENT_PERCEPTUAL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (proof->toggle),
proof->bpc);
}
gimp_color_display_changed (GIMP_COLOR_DISPLAY (proof));
}
static void
cdisplay_proof_changed (GimpColorDisplay *display)
{
CdisplayProof *proof = CDISPLAY_PROOF (display);
cmsHPROFILE rgbProfile;
cmsHPROFILE proofProfile;
if (proof->transform)
{
cmsDeleteTransform (proof->transform);
proof->transform = NULL;
}
if (! proof->filename)
return;
/* This should be read from the global parasite pool.
* For now, just use the built-in sRGB profile.
*/
rgbProfile = cmsCreate_sRGBProfile ();
proofProfile = cmsOpenProfileFromFile (proof->filename, "r");
if (proofProfile)
{
proof->transform = cmsCreateProofingTransform (rgbProfile,
TYPE_RGB_8,
rgbProfile, TYPE_RGB_8,
proofProfile,
proof->intent,
proof->intent,
cmsFLAGS_SOFTPROOFING |
(proof->bpc ?
cmsFLAGS_WHITEBLACKCOMPENSATION : 0));
cmsCloseProfile (proofProfile);
}
cmsCloseProfile (rgbProfile);
}
static void
proof_intent_callback (GtkWidget *widget,
CdisplayProof *proof)
{
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &proof->intent);
gimp_color_display_changed (GIMP_COLOR_DISPLAY (proof));
}
static void
proof_bpc_callback (GtkWidget *widget,
CdisplayProof *proof)
{
gimp_toggle_button_update (widget, &proof->bpc);
gimp_color_display_changed (GIMP_COLOR_DISPLAY (proof));
}
static void
proof_file_callback (GtkWidget *widget,
CdisplayProof *proof)
{
g_free (proof->filename);
proof->filename = gimp_file_entry_get_filename (GIMP_FILE_ENTRY (widget));
gimp_color_display_changed (GIMP_COLOR_DISPLAY (proof));
}
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