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Issue #4205 - The histogram dock scale is incorrect when an image is opened 

In gimp_histogram_view_update_bins(), don't update the view's
range if there's no histogram or the histogram is empty, to avoid
discarding the existing range.  Additionally, improve the range
readjustment when the number of bins changes.
This commit is contained in:
Ell 2019-11-11 18:11:39 +02:00
parent c297131d37
commit 0c899394b4
1 changed files with 8 additions and 8 deletions
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16
app/widgets/gimphistogramview.c
View File

@ -844,21 +844,21 @@ gimp_histogram_view_notify (GimpHistogram *histogram,
static void
gimp_histogram_view_update_bins (GimpHistogramView *view)
{
gint new_bins = 256;
gint new_bins = 0;
if (view->histogram)
new_bins = gimp_histogram_n_bins (view->histogram);
else if (view->bg_histogram)
new_bins = gimp_histogram_n_bins (view->bg_histogram);
if (new_bins != view->n_bins)
if (new_bins > 0 && new_bins != view->n_bins)
{
view->start = ROUND (((gdouble) view->start *
(new_bins - 1) /
(view->n_bins - 1)));
view->end = ROUND (((gdouble) view->end *
(new_bins - 1) /
(view->n_bins - 1)));
view->start = MIN (ROUND ((gdouble) view->start *
new_bins / view->n_bins),
new_bins - 1);
view->end = MAX (ROUND ((gdouble) (view->end + 1) *
new_bins / view->n_bins) - 1,
0);
view->n_bins = new_bins;