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[Qemu-devel] [PATCH v2] ui/console: add escape sequence \e[5,6n
From: |
Ren Kimura |
Subject: |
[Qemu-devel] [PATCH v2] ui/console: add escape sequence \e[5,6n |
Date: |
Sun, 6 Mar 2016 19:36:57 +0900 |
Add support of escape sequence "\e[5n" and "\e[6n" to console.
"\e[5n" reports status of console and it always succeed
in virtual console.
"\e[6n" reports now cursor position in console.
Signed-off-by: Ren Kimura <address@hidden>
---
ui/console.c | 35 +++++++++++++++++++++++++++++++++--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git a/ui/console.c b/ui/console.c
index ae61382..537a509 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -757,6 +757,25 @@ static void console_clear_xy(QemuConsole *s, int x, int y)
update_xy(s, x, y);
}
+static void console_respond_str(QemuConsole *s, const char *buf)
+{
+ TextCell *c;
+ int y1;
+ while (*buf) {
+ if (s->x >= s->width) {
+ s->x = 0;
+ console_put_lf(s);
+ }
+ y1 = (s->y_base + s->y) % s->total_height;
+ c = &s->cells[y1 * s->width + s->x];
+ c->ch = *buf;
+ c->t_attrib = s->t_attrib;
+ update_xy(s, s->x, s->y);
+ s->x++;
+ buf++;
+ }
+}
+
/* set cursor, checking bounds */
static void set_cursor(QemuConsole *s, int x, int y)
{
@@ -782,6 +801,7 @@ static void console_putchar(QemuConsole *s, int ch)
TextCell *c;
int y1, i;
int x, y;
+ char response[40];
switch(s->state) {
case TTY_STATE_NORM:
@@ -956,8 +976,19 @@ static void console_putchar(QemuConsole *s, int ch)
console_handle_escape(s);
break;
case 'n':
- /* report cursor position */
- /* TODO: send ESC[row;colR */
+ switch (s->esc_params[0]) {
+ case 5:
+ /* report console status (always succeed)*/
+ console_respond_str(s, "\033[0n");
+ break;
+ case 6:
+ /* report cursor position */
+ sprintf(response, "\033[%d;%dR",
+ (s->y_base + s->y) % s->total_height + 1,
+ s->x + 1);
+ console_respond_str(s, response);
+ break;
+ }
break;
case 's':
/* save cursor position */
--
2.5.0
- [Qemu-devel] [PATCH v2] ui/console: add escape sequence \e[5,6n,
Ren Kimura <=