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Subject[tip:perf/core] perf hists browser: Override ui_browser refresh_dimensions method
Commit-ID:  357cfff1c2173b7aedc0e521a2146b78396171e0
Gitweb: http://git.kernel.org/tip/357cfff1c2173b7aedc0e521a2146b78396171e0
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Tue, 1 Jul 2014 17:01:01 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 7 Jul 2014 12:36:55 -0300

perf hists browser: Override ui_browser refresh_dimensions method

This requires some more work so that we can really just use the width of
current entries when we want to partition the screen.

Right now its just a prep patch so that we can have where to update
ui_browser->rows when introducing the column headers line, that will be
togglable, so we need to update it everytime we refresh the dimensions
of the browser.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ovk654rx525b4657y0mh6ku9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/hists.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index ca63564..ef7abf8 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -56,11 +56,19 @@ static u32 hist_browser__nr_entries(struct hist_browser *hb)
return nr_entries + hb->nr_callchain_rows;
}

-static void hist_browser__refresh_dimensions(struct hist_browser *browser)
+static void hist_browser__refresh_dimensions(struct ui_browser *browser)
{
+ struct hist_browser *hb = container_of(browser, struct hist_browser, b);
+
/* 3 == +/- toggle symbol before actual hist_entry rendering */
- browser->b.width = 3 + (hists__sort_list_width(browser->hists) +
- sizeof("[k]"));
+ browser->width = 3 + (hists__sort_list_width(hb->hists) + sizeof("[k]"));
+ /*
+ * FIXME: Just keeping existing behaviour, but this really should be
+ * before updating browser->width, as it will invalidate the
+ * calculation above. Fix this and the fallout in another
+ * changeset.
+ */
+ ui_browser__refresh_dimensions(browser);
}

static void hist_browser__gotorc(struct hist_browser *browser, int row, int column)
@@ -78,7 +86,7 @@ static void hist_browser__reset(struct hist_browser *browser)

hist_browser__update_nr_entries(browser);
browser->b.nr_entries = hist_browser__nr_entries(browser);
- hist_browser__refresh_dimensions(browser);
+ hist_browser__refresh_dimensions(&browser->b);
ui_browser__reset_index(&browser->b);
}

@@ -360,7 +368,6 @@ static int hist_browser__run(struct hist_browser *browser,
browser->b.entries = &browser->hists->entries;
browser->b.nr_entries = hist_browser__nr_entries(browser);

- hist_browser__refresh_dimensions(browser);
hists__browser_title(browser->hists, title, sizeof(title));

if (ui_browser__show(&browser->b, title,
@@ -1195,6 +1202,7 @@ static struct hist_browser *hist_browser__new(struct hists *hists)
if (browser) {
browser->hists = hists;
browser->b.refresh = hist_browser__refresh;
+ browser->b.refresh_dimensions = hist_browser__refresh_dimensions;
browser->b.seek = ui_browser__hists_seek;
browser->b.use_navkeypressed = true;
}

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