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Commit 944e1abe authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf ui browser: Add method to draw up/down arrow line 

It figures out the direction and draws downwards arrows too if that is
the case.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
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-tg329nr7q4dg9d0tl3o0wywg@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 88298f5a

tools/perf/ui/browser.c

+52 −2
Original line number Diff line number Diff line
@@ -600,7 +600,8 @@ void ui_browser__write_graph(struct ui_browser *browser __used, int graph) 
	SLsmg_set_char_set(0);

}



void __ui_browser__line_arrow_up(struct ui_browser *browser, unsigned int column,

static void __ui_browser__line_arrow_up(struct ui_browser *browser,

					unsigned int column,

					u64 start, u64 end, int start_width)

{

	unsigned int row, end_row;
@@ -639,6 +640,55 @@ void __ui_browser__line_arrow_up(struct ui_browser *browser, unsigned int column 
	SLsmg_set_char_set(0);

}



static void __ui_browser__line_arrow_down(struct ui_browser *browser,

					  unsigned int column,

					  u64 start, u64 end, int start_width)

{

	unsigned int row, end_row;



	SLsmg_set_char_set(1);



	if (start >= browser->top_idx) {

		row = start - browser->top_idx;

		ui_browser__gotorc(browser, row, column);

		SLsmg_write_char(SLSMG_ULCORN_CHAR);

		ui_browser__gotorc(browser, row, column + 1);

		SLsmg_draw_hline(start_width);



		if (row++ == 0)

			goto out;

	} else

		row = 0;



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

		end_row = browser->height - 1;

	else

		end_row = end - browser->top_idx;;



	ui_browser__gotorc(browser, row, column);

	SLsmg_draw_vline(end_row - row + 1);



	ui_browser__gotorc(browser, end_row, column);

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

		SLsmg_write_char(SLSMG_LLCORN_CHAR);

		ui_browser__gotorc(browser, end_row, column + 1);

		SLsmg_write_char(SLSMG_HLINE_CHAR);

		ui_browser__gotorc(browser, end_row, column + 2);

		SLsmg_write_char(SLSMG_RARROW_CHAR);

	}

out:

	SLsmg_set_char_set(0);

}



void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,

			      u64 start, u64 end, int start_width)

{

	if (start > end)

		__ui_browser__line_arrow_up(browser, column, start, end, start_width);

	else

		__ui_browser__line_arrow_down(browser, column, start, end, start_width);

}



void ui_browser__init(void)

{

	int i = 0;

tools/perf/ui/browser.h

+2 −2
Original line number Diff line number Diff line
@@ -38,7 +38,7 @@ void ui_browser__reset_index(struct ui_browser *self); 


void ui_browser__gotorc(struct ui_browser *self, int y, int x);

void ui_browser__write_graph(struct ui_browser *browser, int graph);

void __ui_browser__line_arrow_up(struct ui_browser *browser, unsigned int column,

void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,

			      u64 start, u64 end, int start_width);

void __ui_browser__show_title(struct ui_browser *browser, const char *title);

void ui_browser__show_title(struct ui_browser *browser, const char *title);