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Delete old messages in the window when content grows beyond a limit

pull/437/head
Selva Nair 2021-03-01 16:17:33 -05:00
parent 8182a455bb
commit 6b4e6d301a
1 changed files with 16 additions and 0 deletions
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16
echo.c
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@ -42,6 +42,9 @@ extern options_t o;
#define ECHO_MSG_WINDOW (1)
#define ECHO_MSG_NOTIFY (2)
/* Old text in the window is deleted when content grows beyond this many lines */
#define MAX_MSG_LINES 1000
struct echo_msg_history {
struct echo_msg_fp fp;
struct echo_msg_history *next;
@ -457,6 +460,19 @@ AddMessageBoxText(HWND hwnd, const wchar_t *text, const wchar_t *title, const wc
pf.wAlignment = pf_align_saved;
SendMessage(hmsg, EM_SETPARAFORMAT, 0, (LPARAM) &pf);
/* Remove lines from the window if it is getting full
* We allow the window to grow by upto 50 lines beyond a
* max value before truncating
*/
int pos2 = SendMessage(hmsg, EM_GETLINECOUNT, 0, 0);
if (pos2 > MAX_MSG_LINES + 50)
{
int pos1 = SendMessage(hmsg, EM_LINEINDEX, MAX_MSG_LINES, 0);
SendMessage(hmsg, EM_SETSEL, pos1, -1);
SendMessage(hmsg, EM_REPLACESEL, FALSE, (LPARAM) _T(""));
PrintDebug(L"Text from character position %d to end removed", pos1);
}
/* Select top of the message and scroll to there */
SendMessage(hmsg, EM_SETSEL, 0, 0);
SendMessage(hmsg, EM_SCROLLCARET, 0, 0);