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Commit 62c95ae3 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf ui browser: Add ->rows to disambiguate from ->height 

The ui_browser->height is about the whole browser "window", including
any header, status lines or any other space needed for some "Yes", "No",
etc buttons a descendent browser, like hist_browser, may have.

Since the navigation is done mostly on the ui_browser methods, it needs
to know how many rows are on the screen, while details about what other
components are, say, if a header (that may be composed of multiple
lines, etc) is present.

Besides this we'll need to add a ui_browser->refresh_dimensions() hook
so that browsers like hist_browser can update ->rows in response to
screen resizes, this will come in a follow up patch.

This patch just adds ->rows and updates it when updating ->height, keeps
using ->height for the only other widget that can come with ui_browser,
the scrollbar, that goes on using all the height on the rightmost column
in the screen, using ->rows for the keyboard navigation needs.

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-xexmwg1mv7u03j5imn66jdak@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 8b5b584d

tools/perf/ui/browser.c

+15 −15
Original line number Diff line number Diff line
@@ -150,7 +150,7 @@ unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser) 
	while (nd != NULL) {

		ui_browser__gotorc(browser, row, 0);

		browser->write(browser, nd, row);

		if (++row == browser->height)

		if (++row == browser->rows)

			break;

		nd = rb_next(nd);

	}
@@ -166,7 +166,7 @@ bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row) 
void ui_browser__refresh_dimensions(struct ui_browser *browser)

{

	browser->width = SLtt_Screen_Cols - 1;

	browser->height = SLtt_Screen_Rows - 2;

	browser->height = browser->rows = SLtt_Screen_Rows - 2;

	browser->y = 1;

	browser->x = 0;

}
@@ -389,7 +389,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) 
			if (browser->index == browser->nr_entries - 1)

				break;

			++browser->index;

			if (browser->index == browser->top_idx + browser->height) {

			if (browser->index == browser->top_idx + browser->rows) {

				++browser->top_idx;

				browser->seek(browser, +1, SEEK_CUR);

			}
@@ -405,10 +405,10 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) 
			break;

		case K_PGDN:

		case ' ':

			if (browser->top_idx + browser->height > browser->nr_entries - 1)

			if (browser->top_idx + browser->rows > browser->nr_entries - 1)

				break;



			offset = browser->height;

			offset = browser->rows;

			if (browser->index + offset > browser->nr_entries - 1)

				offset = browser->nr_entries - 1 - browser->index;

			browser->index += offset;
@@ -419,10 +419,10 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) 
			if (browser->top_idx == 0)

				break;



			if (browser->top_idx < browser->height)

			if (browser->top_idx < browser->rows)

				offset = browser->top_idx;

			else

				offset = browser->height;

				offset = browser->rows;



			browser->index -= offset;

			browser->top_idx -= offset;
@@ -432,7 +432,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) 
			ui_browser__reset_index(browser);

			break;

		case K_END:

			offset = browser->height - 1;

			offset = browser->rows - 1;

			if (offset >= browser->nr_entries)

				offset = browser->nr_entries - 1;
@@ -462,7 +462,7 @@ unsigned int ui_browser__list_head_refresh(struct ui_browser *browser) 
		if (!browser->filter || !browser->filter(browser, pos)) {

			ui_browser__gotorc(browser, row, 0);

			browser->write(browser, pos, row);

			if (++row == browser->height)

			if (++row == browser->rows)

				break;

		}

	}
@@ -587,7 +587,7 @@ unsigned int ui_browser__argv_refresh(struct ui_browser *browser) 
		if (!browser->filter || !browser->filter(browser, *pos)) {

			ui_browser__gotorc(browser, row, 0);

			browser->write(browser, pos, row);

			if (++row == browser->height)

			if (++row == browser->rows)

				break;

		}
@@ -623,7 +623,7 @@ static void __ui_browser__line_arrow_up(struct ui_browser *browser, 


	SLsmg_set_char_set(1);



	if (start < browser->top_idx + browser->height) {

	if (start < browser->top_idx + browser->rows) {

		row = start - browser->top_idx;

		ui_browser__gotorc(browser, row, column);

		SLsmg_write_char(SLSMG_LLCORN_CHAR);
@@ -633,7 +633,7 @@ static void __ui_browser__line_arrow_up(struct ui_browser *browser, 
		if (row-- == 0)

			goto out;

	} else

		row = browser->height - 1;

		row = browser->rows - 1;



	if (end > browser->top_idx)

		end_row = end - browser->top_idx;
@@ -675,8 +675,8 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser, 
	} else

		row = 0;



	if (end >= browser->top_idx + browser->height)

		end_row = browser->height - 1;

	if (end >= browser->top_idx + browser->rows)

		end_row = browser->rows - 1;

	else

		end_row = end - browser->top_idx;
@@ -684,7 +684,7 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser, 
	SLsmg_draw_vline(end_row - row + 1);



	ui_browser__gotorc(browser, end_row, column);

	if (end < browser->top_idx + browser->height) {

	if (end < browser->top_idx + browser->rows) {

		SLsmg_write_char(SLSMG_LLCORN_CHAR);

		ui_browser__gotorc(browser, end_row, column + 1);

		SLsmg_write_char(SLSMG_HLINE_CHAR);

tools/perf/ui/browser.h

+1 −1
Original line number Diff line number Diff line
@@ -14,7 +14,7 @@ 
struct ui_browser {

	u64	      index, top_idx;

	void	      *top, *entries;

	u16	      y, x, width, height;

	u16	      y, x, width, height, rows;

	int	      current_color;

	void	      *priv;

	const char    *title;

tools/perf/ui/browsers/hists.c

+8 −8
Original line number Diff line number Diff line
@@ -392,10 +392,10 @@ static int hist_browser__run(struct hist_browser *browser, 
			struct hist_entry *h = rb_entry(browser->b.top,

							struct hist_entry, rb_node);

			ui_helpline__pop();

			ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",

			ui_helpline__fpush("%d: nr_ent=(%d,%d), rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",

					   seq++, browser->b.nr_entries,

					   browser->hists->nr_entries,

					   browser->b.height,

					   browser->b.rows,

					   browser->b.index,

					   browser->b.top_idx,

					   h->row_offset, h->nr_rows);
@@ -514,7 +514,7 @@ static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browse 
			slsmg_write_nstring(str, width);

			free(alloc_str);



			if (++row == browser->b.height)

			if (++row == browser->b.rows)

				goto out;

do_next:

			if (folded_sign == '+')
@@ -527,7 +527,7 @@ static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browse 
									 new_level, row, row_offset,

									 is_current_entry);

		}

		if (row == browser->b.height)

		if (row == browser->b.rows)

			goto out;

		node = next;

	}
@@ -573,7 +573,7 @@ static int hist_browser__show_callchain_node(struct hist_browser *browser, 
		slsmg_printf("%c ", folded_sign);

		slsmg_write_nstring(s, width - 2);



		if (++row == browser->b.height)

		if (++row == browser->b.rows)

			goto out;

	}
@@ -602,7 +602,7 @@ static int hist_browser__show_callchain(struct hist_browser *browser, 
		row += hist_browser__show_callchain_node(browser, node, level,

							 row, row_offset,

							 is_current_entry);

		if (row == browser->b.height)

		if (row == browser->b.rows)

			break;

	}
@@ -776,7 +776,7 @@ static int hist_browser__show_entry(struct hist_browser *browser, 
	} else

		--row_offset;



	if (folded_sign == '-' && row != browser->b.height) {

	if (folded_sign == '-' && row != browser->b.rows) {

		printed += hist_browser__show_callchain(browser, &entry->sorted_chain,

							1, row, &row_offset,

							&current_entry);
@@ -817,7 +817,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser) 
			continue;



		row += hist_browser__show_entry(hb, h, row);

		if (row == browser->height)

		if (row == browser->rows)

			break;

	}