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authorPatrick Palka <patrick@parcs.ath.cx>2015-02-10 18:44:56 -0500
committerPatrick Palka <patrick@parcs.ath.cx>2015-02-10 19:06:49 -0500
commitd9080678121a84fc433a5f2ee141ee98512d2167 (patch)
treeda50ba69158beec20287e92ff638b44de11afe09 /gdb/tui/tui-io.c
parent084910afdd2d98e3e60ff35f124549fc3c180edc (diff)
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Fix truncation of TUI command history
If we submit a command while the prompt cursor is somewhere other than at the end of the command line, the command line gets truncated as the command window gets shifted one line up. This happens because we fail to properly move the cursor to the end of the command line before transmitting the newline to ncurses. We need to move the cursor because when ncurses outputs a newline it truncates any text that appears past the end of the cursor. The fix is generic enough to work properly even in multi-line secondary prompts like the quit prompt. gdb/ChangeLog: * tui/tui-io.c (tui_getc): Move cursor to the end of the command line before printing a newline.
Diffstat (limited to 'gdb/tui/tui-io.c')
-rw-r--r--gdb/tui/tui-io.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/gdb/tui/tui-io.c b/gdb/tui/tui-io.c
index 21b2a00..4083cde 100644
--- a/gdb/tui/tui-io.c
+++ b/gdb/tui/tui-io.c
@@ -627,9 +627,16 @@ tui_getc (FILE *fp)
}
else
{
- wmove (w, TUI_CMD_WIN->detail.command_info.cur_line,
- TUI_CMD_WIN->detail.command_info.curch);
- waddch (w, ch);
+ /* Move cursor to the end of the command line before emitting the
+ newline. We need to do so because when ncurses outputs a newline
+ it truncates any text that appears past the end of the cursor. */
+ int px = TUI_CMD_WIN->detail.command_info.curch;
+ int py = TUI_CMD_WIN->detail.command_info.cur_line;
+ px += rl_end - rl_point;
+ py += px / TUI_CMD_WIN->generic.width;
+ px %= TUI_CMD_WIN->generic.width;
+ wmove (w, py, px);
+ waddch (w, ch);
}
}