void
gimp_cursor_view_clear_cursor (GimpCursorView *view)
{
g_return_if_fail (GIMP_IS_CURSOR_VIEW (view));
gtk_label_set_text (GTK_LABEL (view->pixel_x_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->pixel_y_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->unit_x_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->unit_y_label), _("n/a"));
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_1));
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_2));
}
static void
gimp_sample_point_editor_points_changed (GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points = 0;
gint i;
if (image_editor->image)
{
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = MIN (4, g_list_length (sample_points));
}
for (i = 0; i < n_points; i++)
{
gtk_widget_set_sensitive (editor->color_frames[i], TRUE);
editor->dirty[i] = TRUE;
}
for (i = n_points; i < 4; i++)
{
gtk_widget_set_sensitive (editor->color_frames[i], FALSE);
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (editor->color_frames[i]));
editor->dirty[i] = FALSE;
}
if (n_points > 0)
gimp_sample_point_editor_dirty (editor, -1);
}
static gboolean
gimp_sample_point_editor_update (GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points = 0;
GList *list;
gint i;
editor->dirty_idle_id = 0;
if (! image_editor->image)
return FALSE;
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = MIN (4, g_list_length (sample_points));
for (i = 0, list = sample_points;
i < n_points;
i++, list = g_list_next (list))
{
if (editor->dirty[i])
{
GimpSamplePoint *sample_point = list->data;
GimpColorFrame *color_frame;
const Babl *format;
guchar pixel[32];
GimpRGB color;
gint x;
gint y;
editor->dirty[i] = FALSE;
color_frame = GIMP_COLOR_FRAME (editor->color_frames[i]);
gimp_sample_point_get_position (sample_point, &x, &y);
if (gimp_image_pick_color (image_editor->image, NULL,
x, y,
editor->sample_merged,
FALSE, 0.0,
&format,
pixel,
&color))
{
gimp_color_frame_set_color (color_frame, FALSE,
format, pixel, &color);
}
else
{
gimp_color_frame_set_invalid (color_frame);
}
}
}
return FALSE;
}
void
gimp_cursor_view_update_cursor (GimpCursorView *view,
GimpImage *image,
GimpUnit unit,
gdouble x,
gdouble y)
{
gboolean in_image;
gdouble unit_factor;
gint unit_digits;
const gchar *unit_str;
gchar format_buf[32];
gchar buf[32];
GimpImageType sample_type;
GimpRGB color;
gint color_index;
g_return_if_fail (GIMP_IS_CURSOR_VIEW (view));
g_return_if_fail (GIMP_IS_IMAGE (image));
if (unit == GIMP_UNIT_PIXEL)
unit = gimp_image_get_unit (image);
in_image = (x >= 0.0 && x < gimp_image_get_width (image) &&
y >= 0.0 && y < gimp_image_get_height (image));
unit_factor = _gimp_unit_get_factor (image->gimp, unit);
unit_digits = _gimp_unit_get_digits (image->gimp, unit);
unit_str = _gimp_unit_get_abbreviation (image->gimp, unit);
#define FORMAT_STRING(s) (in_image ? (s) : "("s")")
g_snprintf (buf, sizeof (buf), FORMAT_STRING ("%d"), (gint) floor (x));
gtk_label_set_text (GTK_LABEL (view->pixel_x_label), buf);
g_snprintf (buf, sizeof (buf), FORMAT_STRING ("%d"), (gint) floor (y));
gtk_label_set_text (GTK_LABEL (view->pixel_y_label), buf);
g_snprintf (format_buf, sizeof (format_buf),
FORMAT_STRING ("%%.%df %s"), unit_digits, unit_str);
g_snprintf (buf, sizeof (buf), format_buf,
x * unit_factor / image->xresolution);
gtk_label_set_text (GTK_LABEL (view->unit_x_label), buf);
g_snprintf (buf, sizeof (buf), format_buf,
y * unit_factor / image->yresolution);
gtk_label_set_text (GTK_LABEL (view->unit_y_label), buf);
if (gimp_image_pick_color (image, NULL,
(gint) floor (x),
(gint) floor (y),
view->sample_merged,
FALSE, 0.0,
&sample_type, &color, &color_index))
{
gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->color_frame_1),
sample_type, &color, color_index);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->color_frame_2),
sample_type, &color, color_index);
}
else
{
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_1));
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_2));
}
}
