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Message-ID: <tip-aa49f6ec990baa9d8f1b46a86fc169a8028776d4@git.kernel.org>
Date: Mon, 19 Mar 2012 13:03:11 -0700
From: tip-bot for Namhyung Kim <namhyung.kim@....com>
To: linux-tip-commits@...r.kernel.org
Cc: acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl,
namhyung.kim@....com, namhyung@...il.com, tglx@...utronix.de,
mingo@...e.hu
Subject: [tip:perf/core] perf ui browser:
Introduce ui_browser__input_window
Commit-ID: aa49f6ec990baa9d8f1b46a86fc169a8028776d4
Gitweb: http://git.kernel.org/tip/aa49f6ec990baa9d8f1b46a86fc169a8028776d4
Author: Namhyung Kim <namhyung.kim@....com>
AuthorDate: Fri, 16 Mar 2012 17:50:52 +0900
Committer: Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 16 Mar 2012 16:32:36 -0300
perf ui browser: Introduce ui_browser__input_window
The ui_browser__input_window() function is to get user's key input.
Current implementation can handle maximum 49 characters.
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1331887855-874-2-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@....com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/util/ui/browser.h | 2 +
tools/perf/util/ui/keysyms.h | 2 +
tools/perf/util/ui/util.c | 78 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/ui/browser.h b/tools/perf/util/ui/browser.h
index 84d761b..6ee82f6 100644
--- a/tools/perf/util/ui/browser.h
+++ b/tools/perf/util/ui/browser.h
@@ -49,6 +49,8 @@ int ui_browser__warning(struct ui_browser *browser, int timeout,
const char *format, ...);
int ui_browser__help_window(struct ui_browser *browser, const char *text);
bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text);
+int ui_browser__input_window(const char *title, const char *text, char *input,
+ const char *exit_msg, int delay_sec);
void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);
unsigned int ui_browser__argv_refresh(struct ui_browser *browser);
diff --git a/tools/perf/util/ui/keysyms.h b/tools/perf/util/ui/keysyms.h
index 3458b19..809eca5 100644
--- a/tools/perf/util/ui/keysyms.h
+++ b/tools/perf/util/ui/keysyms.h
@@ -16,6 +16,8 @@
#define K_TAB '\t'
#define K_UNTAB SL_KEY_UNTAB
#define K_UP SL_KEY_UP
+#define K_BKSPC 0x7f
+#define K_DEL SL_KEY_DELETE
/* Not really keys */
#define K_TIMER -1
diff --git a/tools/perf/util/ui/util.c b/tools/perf/util/ui/util.c
index 45daa7c..360f43f 100644
--- a/tools/perf/util/ui/util.c
+++ b/tools/perf/util/ui/util.c
@@ -69,6 +69,84 @@ int ui__popup_menu(int argc, char * const argv[])
return popup_menu__run(&menu);
}
+int ui_browser__input_window(const char *title, const char *text, char *input,
+ const char *exit_msg, int delay_secs)
+{
+ int x, y, len, key;
+ int max_len = 60, nr_lines = 0;
+ static char buf[50];
+ const char *t;
+
+ t = text;
+ while (1) {
+ const char *sep = strchr(t, '\n');
+
+ if (sep == NULL)
+ sep = strchr(t, '\0');
+ len = sep - t;
+ if (max_len < len)
+ max_len = len;
+ ++nr_lines;
+ if (*sep == '\0')
+ break;
+ t = sep + 1;
+ }
+
+ max_len += 2;
+ nr_lines += 8;
+ y = SLtt_Screen_Rows / 2 - nr_lines / 2;
+ x = SLtt_Screen_Cols / 2 - max_len / 2;
+
+ SLsmg_set_color(0);
+ SLsmg_draw_box(y, x++, nr_lines, max_len);
+ if (title) {
+ SLsmg_gotorc(y, x + 1);
+ SLsmg_write_string((char *)title);
+ }
+ SLsmg_gotorc(++y, x);
+ nr_lines -= 7;
+ max_len -= 2;
+ SLsmg_write_wrapped_string((unsigned char *)text, y, x,
+ nr_lines, max_len, 1);
+ y += nr_lines + 1;
+ SLsmg_set_color(0);
+ SLsmg_draw_box(y - 1, x + 1, 3, max_len - 2);
+
+ SLsmg_gotorc(y + 3, x);
+ SLsmg_write_nstring((char *)exit_msg, max_len);
+ SLsmg_refresh();
+
+ x += 2;
+ len = 0;
+ key = ui__getch(delay_secs);
+ while (key != K_TIMER && key != K_ENTER && key != K_ESC) {
+ if (key == K_BKSPC) {
+ if (len == 0)
+ goto next_key;
+ SLsmg_gotorc(y, x + --len);
+ SLsmg_write_char(' ');
+ } else {
+ buf[len] = key;
+ SLsmg_gotorc(y, x + len++);
+ SLsmg_write_char(key);
+ }
+ SLsmg_refresh();
+
+ /* XXX more graceful overflow handling needed */
+ if (len == sizeof(buf) - 1) {
+ ui_helpline__push("maximum size of symbol name reached!");
+ key = K_ENTER;
+ break;
+ }
+next_key:
+ key = ui__getch(delay_secs);
+ }
+
+ buf[len] = '\0';
+ strncpy(input, buf, len+1);
+ return key;
+}
+
int ui__question_window(const char *title, const char *text,
const char *exit_msg, int delay_secs)
{
--
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