420 lines
13 KiB
C
420 lines
13 KiB
C
/* PIKA CMYK ColorSelector using littleCMS
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* Copyright (C) 2006 Sven Neumann <sven@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikacolor/pikacolor.h"
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#include "libpikaconfig/pikaconfig.h"
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#include "libpikamodule/pikamodule.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "libpika/libpika-intl.h"
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/* definitions and variables */
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#define COLORSEL_TYPE_CMYK (colorsel_cmyk_get_type ())
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#define COLORSEL_CMYK(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), COLORSEL_TYPE_CMYK, ColorselCmyk))
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#define COLORSEL_CMYK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), COLORSEL_TYPE_CMYK, ColorselCmykClass))
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#define COLORSEL_IS_CMYK(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), COLORSEL_TYPE_CMYK))
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#define COLORSEL_IS_CMYK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), COLORSEL_TYPE_CMYK))
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typedef struct _ColorselCmyk ColorselCmyk;
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typedef struct _ColorselCmykClass ColorselCmykClass;
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struct _ColorselCmyk
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{
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PikaColorSelector parent_instance;
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PikaColorConfig *config;
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PikaColorProfile *simulation_profile;
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PikaColorRenderingIntent simulation_intent;
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gboolean simulation_bpc;
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PikaCMYK cmyk;
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GtkWidget *scales[4];
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GtkWidget *name_label;
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gboolean in_destruction;
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};
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struct _ColorselCmykClass
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{
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PikaColorSelectorClass parent_class;
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};
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GType colorsel_cmyk_get_type (void);
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static void colorsel_cmyk_dispose (GObject *object);
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static void colorsel_cmyk_set_color (PikaColorSelector *selector,
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const PikaRGB *rgb,
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const PikaHSV *hsv);
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static void colorsel_cmyk_set_config (PikaColorSelector *selector,
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PikaColorConfig *config);
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static void colorsel_cmyk_set_simulation (PikaColorSelector *selector,
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PikaColorProfile *profile,
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PikaColorRenderingIntent intent,
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gboolean bpc);
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static void colorsel_cmyk_scale_update (PikaLabelSpin *scale,
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ColorselCmyk *module);
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static void colorsel_cmyk_config_changed (ColorselCmyk *module);
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static const PikaModuleInfo colorsel_cmyk_info =
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{
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PIKA_MODULE_ABI_VERSION,
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N_("CMYK color selector (using color profile)"),
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"Sven Neumann <sven@gimp.org>",
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"v0.1",
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"(c) 2006, released under the GPL",
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"September 2006"
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};
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G_DEFINE_DYNAMIC_TYPE (ColorselCmyk, colorsel_cmyk,
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PIKA_TYPE_COLOR_SELECTOR)
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G_MODULE_EXPORT const PikaModuleInfo *
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pika_module_query (GTypeModule *module)
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{
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return &colorsel_cmyk_info;
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}
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G_MODULE_EXPORT gboolean
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pika_module_register (GTypeModule *module)
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{
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colorsel_cmyk_register_type (module);
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return TRUE;
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}
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static void
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colorsel_cmyk_class_init (ColorselCmykClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaColorSelectorClass *selector_class = PIKA_COLOR_SELECTOR_CLASS (klass);
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object_class->dispose = colorsel_cmyk_dispose;
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selector_class->name = _("CMYK");
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selector_class->help_id = "pika-colorselector-cmyk";
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selector_class->icon_name = PIKA_ICON_COLOR_SELECTOR_CMYK;
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selector_class->set_color = colorsel_cmyk_set_color;
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selector_class->set_config = colorsel_cmyk_set_config;
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selector_class->set_simulation = colorsel_cmyk_set_simulation;
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gtk_widget_class_set_css_name (GTK_WIDGET_CLASS (klass), "ColorselCmyk");
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}
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static void
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colorsel_cmyk_class_finalize (ColorselCmykClass *klass)
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{
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}
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static void
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colorsel_cmyk_init (ColorselCmyk *module)
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{
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GtkWidget *grid;
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gint i;
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static const gchar * const cmyk_labels[] =
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{
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/* Cyan */
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N_("_C"),
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/* Magenta */
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N_("_M"),
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/* Yellow */
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N_("_Y"),
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/* Key (Black) */
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N_("_K")
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};
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static const gchar * const cmyk_tips[] =
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{
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N_("Cyan"),
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N_("Magenta"),
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N_("Yellow"),
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N_("Black")
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};
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module->config = NULL;
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gtk_box_set_spacing (GTK_BOX (module), 6);
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grid = gtk_grid_new ();
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gtk_grid_set_row_spacing (GTK_GRID (grid), 1);
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gtk_grid_set_column_spacing (GTK_GRID (grid), 2);
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gtk_box_pack_start (GTK_BOX (module), grid, FALSE, FALSE, 0);
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gtk_widget_show (grid);
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for (i = 0; i < 4; i++)
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{
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module->scales[i] = pika_scale_entry_new (gettext (cmyk_labels[i]),
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0.0, 0.0, 100.0, 0);
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pika_help_set_help_data (module->scales[i], gettext (cmyk_tips[i]), NULL);
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g_signal_connect (module->scales[i], "value-changed",
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G_CALLBACK (colorsel_cmyk_scale_update),
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module);
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gtk_grid_attach (GTK_GRID (grid), module->scales[i], 1, i, 3, 1);
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gtk_widget_show (module->scales[i]);
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}
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module->name_label = gtk_label_new (NULL);
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gtk_label_set_xalign (GTK_LABEL (module->name_label), 0.0);
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gtk_label_set_ellipsize (GTK_LABEL (module->name_label), PANGO_ELLIPSIZE_END);
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pika_label_set_attributes (GTK_LABEL (module->name_label),
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PANGO_ATTR_SCALE, PANGO_SCALE_SMALL,
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-1);
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gtk_box_pack_start (GTK_BOX (module), module->name_label, FALSE, FALSE, 0);
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gtk_widget_show (module->name_label);
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}
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static void
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colorsel_cmyk_dispose (GObject *object)
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{
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ColorselCmyk *module = COLORSEL_CMYK (object);
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module->in_destruction = TRUE;
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colorsel_cmyk_set_config (PIKA_COLOR_SELECTOR (object), NULL);
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g_clear_object (&module->simulation_profile);
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G_OBJECT_CLASS (colorsel_cmyk_parent_class)->dispose (object);
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}
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static void
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colorsel_cmyk_set_color (PikaColorSelector *selector,
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const PikaRGB *rgb,
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const PikaHSV *hsv)
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{
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PikaColorProfile *cmyk_profile = NULL;
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PikaColorRenderingIntent intent = PIKA_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC;
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const Babl *fish = NULL;
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const Babl *space = NULL;
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ColorselCmyk *module = COLORSEL_CMYK (selector);
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gfloat values[4];
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gint i;
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/* Try Image Soft-proofing profile first, then default CMYK profile */
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if (module->simulation_profile)
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cmyk_profile = module->simulation_profile;
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if (! cmyk_profile && PIKA_IS_COLOR_CONFIG (module->config))
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cmyk_profile = pika_color_config_get_cmyk_color_profile (PIKA_COLOR_CONFIG (module->config),
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NULL);
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if (cmyk_profile && pika_color_profile_is_cmyk (cmyk_profile))
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{
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intent = module->simulation_intent;
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space = pika_color_profile_get_space (cmyk_profile, intent,
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NULL);
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}
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fish = babl_fish (babl_format ("R'G'B'A double"),
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babl_format_with_space ("CMYK float", space));
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babl_process (fish, rgb, values, 1);
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for (i = 0; i < 4; i++)
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{
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g_signal_handlers_block_by_func (module->scales[i],
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colorsel_cmyk_scale_update,
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module);
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values[i] *= 100.0;
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pika_label_spin_set_value (PIKA_LABEL_SPIN (module->scales[i]), values[i]);
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g_signal_handlers_unblock_by_func (module->scales[i],
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colorsel_cmyk_scale_update,
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module);
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}
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if (cmyk_profile && ! module->simulation_profile)
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g_object_unref (cmyk_profile);
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}
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static void
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colorsel_cmyk_set_config (PikaColorSelector *selector,
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PikaColorConfig *config)
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{
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ColorselCmyk *module = COLORSEL_CMYK (selector);
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if (config != module->config)
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{
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if (module->config)
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g_signal_handlers_disconnect_by_func (module->config,
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colorsel_cmyk_config_changed,
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module);
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g_set_object (&module->config, config);
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if (module->config)
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g_signal_connect_swapped (module->config, "notify",
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G_CALLBACK (colorsel_cmyk_config_changed),
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module);
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colorsel_cmyk_config_changed (module);
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}
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}
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static void
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colorsel_cmyk_set_simulation (PikaColorSelector *selector,
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PikaColorProfile *profile,
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PikaColorRenderingIntent intent,
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gboolean bpc)
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{
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ColorselCmyk *module = COLORSEL_CMYK (selector);
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PikaColorProfile *cmyk_profile = NULL;
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gchar *text;
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gtk_label_set_text (GTK_LABEL (module->name_label), _("Profile: (none)"));
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pika_help_set_help_data (module->name_label, NULL, NULL);
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g_set_object (&module->simulation_profile, profile);
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cmyk_profile = module->simulation_profile;
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if (! cmyk_profile && PIKA_IS_COLOR_CONFIG (module->config))
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cmyk_profile = pika_color_config_get_cmyk_color_profile (PIKA_COLOR_CONFIG (module->config),
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NULL);
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if (cmyk_profile && pika_color_profile_is_cmyk (cmyk_profile))
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{
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text = g_strdup_printf (_("Profile: %s"),
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pika_color_profile_get_label (cmyk_profile));
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gtk_label_set_text (GTK_LABEL (module->name_label), text);
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g_free (text);
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pika_help_set_help_data (module->name_label,
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pika_color_profile_get_summary (cmyk_profile),
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NULL);
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}
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module->simulation_intent = intent;
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module->simulation_bpc = bpc;
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if (! module->in_destruction)
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colorsel_cmyk_set_color (selector, &selector->rgb, &selector->hsv);
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}
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static void
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colorsel_cmyk_scale_update (PikaLabelSpin *scale,
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ColorselCmyk *module)
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{
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PikaColorProfile *cmyk_profile = NULL;
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PikaColorSelector *selector = PIKA_COLOR_SELECTOR (module);
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PikaColorRenderingIntent intent = PIKA_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC;
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const Babl *fish = NULL;
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const Babl *space = NULL;
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gfloat cmyk_values[4];
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gfloat rgb_values[3];
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gint i;
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for (i = 0; i < 4; i++)
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cmyk_values[i] = pika_label_spin_get_value (PIKA_LABEL_SPIN (module->scales[i])) / 100.0;
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if (module->simulation_profile)
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cmyk_profile = module->simulation_profile;
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if (! cmyk_profile && PIKA_IS_COLOR_CONFIG (module->config))
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cmyk_profile = pika_color_config_get_cmyk_color_profile (PIKA_COLOR_CONFIG (module->config),
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NULL);
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if (cmyk_profile)
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{
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intent = module->simulation_intent;
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space = pika_color_profile_get_space (cmyk_profile, intent,
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NULL);
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}
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fish = babl_fish (babl_format_with_space ("CMYK float", space),
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babl_format ("R'G'B'A float"));
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babl_process (fish, cmyk_values, rgb_values, 1);
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selector->rgb.r = rgb_values[0];
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selector->rgb.g = rgb_values[1];
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selector->rgb.b = rgb_values[2];
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pika_rgb_to_hsv (&selector->rgb, &selector->hsv);
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pika_color_selector_emit_color_changed (selector);
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if (cmyk_profile && ! module->simulation_profile)
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g_object_unref (cmyk_profile);
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}
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static void
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colorsel_cmyk_config_changed (ColorselCmyk *module)
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{
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PikaColorSelector *selector = PIKA_COLOR_SELECTOR (module);
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PikaColorConfig *config = module->config;
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PikaColorProfile *rgb_profile = NULL;
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PikaColorProfile *cmyk_profile = NULL;
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gchar *text;
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gtk_label_set_text (GTK_LABEL (module->name_label), _("Profile: (none)"));
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pika_help_set_help_data (module->name_label, NULL, NULL);
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if (! config)
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goto out;
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if (module->simulation_profile)
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cmyk_profile = module->simulation_profile;
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if (! cmyk_profile && PIKA_IS_COLOR_CONFIG (module->config))
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cmyk_profile = pika_color_config_get_cmyk_color_profile (PIKA_COLOR_CONFIG (module->config),
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NULL);
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if (! cmyk_profile)
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goto out;
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rgb_profile = pika_color_profile_new_rgb_srgb ();
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text = g_strdup_printf (_("Profile: %s"),
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pika_color_profile_get_label (cmyk_profile));
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gtk_label_set_text (GTK_LABEL (module->name_label), text);
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g_free (text);
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pika_help_set_help_data (module->name_label,
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pika_color_profile_get_summary (cmyk_profile),
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NULL);
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out:
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if (rgb_profile)
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g_object_unref (rgb_profile);
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if (cmyk_profile && ! module->simulation_profile)
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g_object_unref (cmyk_profile);
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if (! module->in_destruction)
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colorsel_cmyk_set_color (selector, &selector->rgb, &selector->hsv);
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}
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