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modules: Display Total Ink Coverage on CMYK selector

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Total Ink Coverage shows the total percentage of ink
that would be needed to print a particular color. It is the
simple addition of all CMYK channels.
This patch adds a Total Ink Coverage label to the
CMYK color selector, as a reference when selecting a
color for print.
This commit is contained in:
Alx Sa 2025-06-07 01:36:06 +00:00
parent 330ebe90b6
commit 12f643329a
1 changed files with 18 additions and 0 deletions
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18
modules/color-selector-cmyk.c
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@ -51,6 +51,7 @@ struct _ColorselCmyk
GtkWidget *scales[4];
GtkWidget *name_label;
GtkWidget *tic_label;
gboolean in_destruction;
};
@ -182,6 +183,15 @@ colorsel_cmyk_init (ColorselCmyk *module)
gtk_widget_show (module->scales[i]);
}
module->tic_label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (module->tic_label), 0.0);
gtk_label_set_ellipsize (GTK_LABEL (module->tic_label), PANGO_ELLIPSIZE_END);
gimp_label_set_attributes (GTK_LABEL (module->tic_label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_grid_attach (GTK_GRID (grid), module->tic_label, 1, 4, 3, 1);
gtk_widget_set_visible (module->tic_label, TRUE);
module->name_label = gtk_label_new (NULL);
gtk_label_set_xalign (GTK_LABEL (module->name_label), 0.0);
gtk_label_set_ellipsize (GTK_LABEL (module->name_label), PANGO_ELLIPSIZE_END);
@ -213,6 +223,8 @@ colorsel_cmyk_set_color (GimpColorSelector *selector,
GimpColorRenderingIntent intent = GIMP_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC;
const Babl *space = NULL;
ColorselCmyk *module = COLORSEL_CMYK (selector);
gfloat tic_val = 0;
gchar *tic_str;
gfloat cmyk[4];
/* Try Image Soft-proofing profile first, then default CMYK profile */
@ -245,8 +257,14 @@ colorsel_cmyk_set_color (GimpColorSelector *selector,
g_signal_handlers_unblock_by_func (module->scales[i],
colorsel_cmyk_scale_update,
module);
tic_val += cmyk[i];
}
tic_str = g_strdup_printf ("%s: %d%%", _("Total Ink Coverage"),
(gint) tic_val);
gtk_label_set_text (GTK_LABEL (module->tic_label), tic_str);
g_free (tic_str);
if (cmyk_profile && ! module->simulation_profile)
g_object_unref (cmyk_profile);
}