Commit-ID: 025bf7ea0aca26df4a4b28f0b12afe1aaf91e4bd Gitweb: http://git.kernel.org/tip/025bf7ea0aca26df4a4b28f0b12afe1aaf91e4bd Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Sat, 14 Jun 2014 15:44:52 +0200 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Mon, 7 Jul 2014 12:36:55 -0300
perf hists browser: Add support for showing columns header Open up space to show a one-line header text whenever 'H' is pressed, hide it on another key press. Follow up patch will format this line from the set of headers used. Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/ui/browsers/hists.c | 42 ++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 40 insertions(+), 2 deletions(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index ef7abf8..2be71bf 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -26,6 +26,7 @@ struct hist_browser { struct map_symbol *selection; int print_seq; bool show_dso; + bool show_headers; float min_pcnt; u64 nr_non_filtered_entries; u64 nr_callchain_rows; @@ -56,6 +57,21 @@ static u32 hist_browser__nr_entries(struct hist_browser *hb) return nr_entries + hb->nr_callchain_rows; } +static void hist_browser__update_rows(struct hist_browser *hb) +{ + struct ui_browser *browser = &hb->b; + u16 header_offset = hb->show_headers ? 1 : 0, index_row; + + browser->rows = browser->height - header_offset; + /* + * Verify if we were at the last line and that line isn't + * visibe because we now show the header line(s). + */ + index_row = browser->index - browser->top_idx; + if (index_row >= browser->rows) + browser->index -= index_row - browser->rows + 1; +} + static void hist_browser__refresh_dimensions(struct ui_browser *browser) { struct hist_browser *hb = container_of(browser, struct hist_browser, b); @@ -69,11 +85,14 @@ static void hist_browser__refresh_dimensions(struct ui_browser *browser) * changeset. */ ui_browser__refresh_dimensions(browser); + hist_browser__update_rows(hb); } static void hist_browser__gotorc(struct hist_browser *browser, int row, int column) { - ui_browser__gotorc(&browser->b, row, column); + u16 header_offset = browser->show_headers ? 1 : 0; + + ui_browser__gotorc(&browser->b, row + header_offset, column); } static void hist_browser__reset(struct hist_browser *browser) @@ -421,6 +440,10 @@ static int hist_browser__run(struct hist_browser *browser, /* Expand the whole world. */ hist_browser__set_folding(browser, true); break; + case 'H': + browser->show_headers = !browser->show_headers; + hist_browser__update_rows(browser); + break; case K_ENTER: if (hist_browser__toggle_fold(browser)) break; @@ -799,6 +822,13 @@ static int hist_browser__show_entry(struct hist_browser *browser, return printed; } +static void hist_browser__show_headers(struct hist_browser *browser) +{ + ui_browser__gotorc(&browser->b, 0, 0); + ui_browser__set_color(&browser->b, HE_COLORSET_ROOT); + slsmg_write_nstring(" ", browser->b.width + 1); +} + static void ui_browser__hists_init_top(struct ui_browser *browser) { if (browser->top == NULL) { @@ -812,9 +842,15 @@ static void ui_browser__hists_init_top(struct ui_browser *browser) static unsigned int hist_browser__refresh(struct ui_browser *browser) { unsigned row = 0; + u16 header_offset = 0; struct rb_node *nd; struct hist_browser *hb = container_of(browser, struct hist_browser, b); + if (hb->show_headers) { + hist_browser__show_headers(hb); + header_offset = 1; + } + ui_browser__hists_init_top(browser); for (nd = browser->top; nd; nd = rb_next(nd)) { @@ -833,7 +869,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser) break; } - return row; + return row + header_offset; } static struct rb_node *hists__filter_entries(struct rb_node *nd, @@ -1205,6 +1241,7 @@ static struct hist_browser *hist_browser__new(struct hists *hists) browser->b.refresh_dimensions = hist_browser__refresh_dimensions; browser->b.seek = ui_browser__hists_seek; browser->b.use_navkeypressed = true; + browser->show_headers = false; } return browser; @@ -1434,6 +1471,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, "d Zoom into current DSO\n" \ "E Expand all callchains\n" \ "F Toggle percentage of filtered entries\n" \ + "H Display column headers\n" \ /* help messages are sorted by lexical order of the hotkey */ const char report_help[] = HIST_BROWSER_HELP_COMMON -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
