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libgimpwidgets: Get full color data from ColorArea 

Resolves #11146

As Idriss Fekir and I noted,  5ce128a9 added support for
receiving GeglColor data to GimpColorAreas, but
retrieving it still resulted in RGBA application/x-color
values being stored when dragged.
This patch updates gimp_color_area_drag_data_get () to
give the format and profile information along with the
pixel values.
This commit is contained in:
Alx Sa 2024-03-29 04:01:12 +00:00
parent 1094ba1382
commit 3cccc0d319
1 changed files with 29 additions and 12 deletions
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41
libgimpwidgets/gimpcolorarea.c
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@ -1065,22 +1065,39 @@ gimp_color_area_drag_data_get (GtkWidget *widget,
guint time)
{
GimpColorAreaPrivate *priv = GET_PRIVATE (widget);
gdouble rgb[4];
guint16 vals[4];
const Babl *format;
const gchar *encoding;
gint encoding_length;
guchar pixel[40];
gint pixel_length;
guint8 *profile_data = NULL;
int profile_length = 0;
guchar *data;
gint data_length;
gegl_color_get_pixel (priv->color, babl_format_with_space ("R'G'B'A double", NULL), rgb);
vals[0] = rgb[0] * 0xffff;
vals[1] = rgb[1] * 0xffff;
vals[2] = rgb[2] * 0xffff;
g_return_if_fail (selection_data != NULL);
g_return_if_fail (priv->color != NULL);
if (priv->type == GIMP_COLOR_AREA_FLAT)
vals[3] = 0xffff;
else
vals[3] = rgb[3] * 0xffff;
format = gegl_color_get_format (priv->color);
encoding = babl_format_get_encoding (format);
encoding_length = strlen (encoding) + 1;
pixel_length = babl_format_get_bytes_per_pixel (format);
gegl_color_get_pixel (priv->color, format, pixel);
if (babl_format_get_space (format) != babl_space ("sRGB"))
profile_data = (guint8 *) babl_space_get_icc (babl_format_get_space (format),
&profile_length);
data_length = encoding_length + pixel_length + profile_length;
data = g_malloc0 (data_length);
memcpy (data, encoding, encoding_length);
memcpy (data + encoding_length, pixel, pixel_length);
if (profile_length > 0)
memcpy (data + encoding_length + pixel_length, profile_data, profile_length);
gtk_selection_data_set (selection_data,
gdk_atom_intern ("application/x-color", FALSE),
16, (guchar *) vals, 8);
gtk_selection_data_get_target (selection_data),
8, (const guchar *) data, data_length);
}
static void