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Using wherex() to determine the length of the string printed with cputsn() fails if the right edge of the screen was reached as wherex() then returns 0. 

Therefore we rather count the chars actually printed in cputsn() and return that value thus avoiding usage of wherex() in those scenarios altogether.
This commit is contained in:
oliverschmidt 2010-07-20 22:19:23 +00:00
parent cb929a3e5c
commit 89f6235c13
1 changed files with 13 additions and 12 deletions
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25
core/ctk/ctk-conio.c
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@ -29,7 +29,7 @@
*
* This file is part of the "ctk" console GUI toolkit for cc65
*
* $Id: ctk-conio.c,v 1.13 2010/02/07 21:43:03 oliverschmidt Exp $
* $Id: ctk-conio.c,v 1.14 2010/07/20 22:19:23 oliverschmidt Exp $
*
*/
@ -53,20 +53,22 @@ unsigned char ctk_draw_windowtitle_height = 1;
/*-----------------------------------------------------------------------------------*/
static void
static unsigned char
cputsn(char *str, unsigned char len)
{
unsigned char cnt = 0;
char c;
while(len > 0) {
--len;
while(cnt < len) {
c = *str;
if(c == 0) {
break;
}
cputc(c);
++str;
++cnt;
}
return cnt;
}
/*-----------------------------------------------------------------------------------*/
void
@ -125,12 +127,12 @@ draw_widget(struct ctk_widget *w,
break;
case CTK_WIDGET_LABEL:
text = w->widget.label.text;
for(i = 0; i < w->h; ++i) {
for(j = 0; j < w->h; ++j) {
if(ypos >= clipy1 && ypos < clipy2) {
gotoxy(xpos, ypos);
cputsn(text, w->w);
if(w->w - (wherex() - xpos) > 0) {
cclear(w->w - (wherex() - xpos));
i = cputsn(text, w->w);
if(w->w - i > 0) {
cclear(w->w - i);
}
}
++ypos;
@ -185,10 +187,9 @@ draw_widget(struct ctk_widget *w,
revers(wfocus != 0 && j == w->widget.textentry.ypos);
cvlinexy(xpos, ypos, 1);
gotoxy(xpos + 1, ypos);
cputsn(text, w->w);
i = wherex();
if(i - xpos - 1 < w->w) {
cclear(w->w - (i - xpos) + 1);
i = cputsn(text, w->w);
if(w->w - i > 0) {
cclear(w->w - i);
}
cvline(1);
}