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Update tail pointer correctly so scrolling works.

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This commit is contained in:
Kristian Høgsberg 2008-12-08 00:16:39 -05:00
parent f04e838d4a
commit b29415ee6d
1 changed files with 9 additions and 1 deletions
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10
terminal.c
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@ -55,7 +55,7 @@ struct terminal {
struct wl_display *display; struct wl_display *display;
int resize_scheduled; int resize_scheduled;
char *data; char *data;
int width, height, tail, row, column; int width, height, tail, row, column, total_rows;
int fd, master; int fd, master;
struct buffer *buffer; struct buffer *buffer;
GIOChannel *channel; GIOChannel *channel;
@ -149,9 +149,17 @@ terminal_data(struct terminal *terminal, const char *data, size_t length)
break; break;
case '\n': case '\n':
terminal->row++; terminal->row++;
terminal->total_rows++;
terminal->column = 0; terminal->column = 0;
if (terminal->row == terminal->height) if (terminal->row == terminal->height)
terminal->row = 0; terminal->row = 0;
if (terminal->row == terminal->tail && terminal->total_rows > 0) {
memset(&terminal->data[terminal->row * (terminal->width + 1)],
0, terminal->width);
terminal->tail++;
}
if (terminal->tail == terminal->height)
terminal->tail = 0;
break; break;
case '\t': case '\t':
memset(&row[terminal->column], ' ', -terminal->column & 7); memset(&row[terminal->column], ' ', -terminal->column & 7);