Em Fri, Feb 12, 2016 at 10:26:37AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 12, 2016 at 01:56:22PM +0100, Jiri Olsa escreveu:
> > On Thu, Feb 11, 2016 at 05:27:18PM -0300, Arnaldo Carvalho de Melo wrote:
> > 
> > SNIP
> > 
> > >           int column = 0;
> > >  
> > >           hist_browser__gotorc(browser, row, 0);
> > >  
> > >           hists__for_each_format(browser->hists, fmt) {
> > > +                 struct perf_hpp hpp = {
> > > +                         .buf    = s,
> > > +                         .size   = sizeof(s),
> > > +                         .ptr    = &arg,
> > > +                 };
> > > +
> > >                   if (perf_hpp__should_skip(fmt, entry->hists) ||
> > >                       column++ < browser->b.horiz_scroll)
> > >                           continue;
> > > @@ -1122,8 +1123,9 @@ static int hist_browser__show_entry(struct 
> > > hist_browser *browser,
> > >                   if (fmt->color) {
> > >                           width -= fmt->color(fmt, &hpp, entry);
> > >                   } else {
> > > -                         width -= fmt->entry(fmt, &hpp, entry);
> > > +                         hist_entry__snprintf_alignment(entry, &hpp, 
> > > fmt, fmt->entry(fmt, &hpp, entry));
> > >                           ui_browser__printf(&browser->b, "%s", s);
> > > +                         width -= hpp.buf - s;
> > 
> > how's the 'color' case handled?
> 
> Right, I'll move it to after the branch.

A bit more involved, since fmt->color() does the ui_browser__ calls, as
it involves setting up ui_browser color related calls, etc, so I have
this on top, testing now:

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index af608d5da17d..1819771243f9 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1061,7 +1061,6 @@ static int hist_browser__show_entry(struct hist_browser 
*browser,
                                    struct hist_entry *entry,
                                    unsigned short row)
 {
-       char s[256];
        int printed = 0;
        int width = browser->b.width;
        char folded_sign = ' ';
@@ -1091,6 +1090,7 @@ static int hist_browser__show_entry(struct hist_browser 
*browser,
                hist_browser__gotorc(browser, row, 0);
 
                hists__for_each_format(browser->hists, fmt) {
+                       char s[2048];
                        struct perf_hpp hpp = {
                                .buf    = s,
                                .size   = sizeof(s),
@@ -1121,12 +1121,18 @@ static int hist_browser__show_entry(struct hist_browser 
*browser,
                        }
 
                        if (fmt->color) {
-                               width -= fmt->color(fmt, &hpp, entry);
+                               int ret = fmt->color(fmt, &hpp, entry);
+                               hist_entry__snprintf_alignment(entry, &hpp, 
fmt, ret);
+                               /*
+                                * fmt->color() already used ui_browser to
+                                * print the non alignment bits, skip it (+ret):
+                                */
+                               ui_browser__printf(&browser->b, "%s", s + ret);
                        } else {
                                hist_entry__snprintf_alignment(entry, &hpp, 
fmt, fmt->entry(fmt, &hpp, entry));
                                ui_browser__printf(&browser->b, "%s", s);
-                               width -= hpp.buf - s;
                        }
+                       width -= hpp.buf - s;
                }
 
                /* The scroll bar isn't being used */

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