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fix backspace bug, simplify a bit

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This commit is contained in:
Jfreegman 2014-07-25 15:43:51 -04:00
parent 26ad5a00a3
commit fb5a9bc043
1 changed files with 2 additions and 4 deletions
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6
src/input.c
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@ -66,13 +66,11 @@ static void input_backspace(ToxWindow *self, int x, int mx_x)
return; return;
} }
int cur_len = wcwidth(ctx->line[ctx->pos]); int cur_len = ctx->pos > 0 ? wcwidth(ctx->line[ctx->pos - 1]) : 0;
int s_len = wcwidth(ctx->line[ctx->start]); int s_len = ctx->start > 0 ? wcwidth(ctx->line[ctx->start - 1]) : 0;
if (ctx->start && (x >= mx_x - cur_len)) if (ctx->start && (x >= mx_x - cur_len))
ctx->start = MAX(0, ctx->start - 1 + (s_len - cur_len)); ctx->start = MAX(0, ctx->start - 1 + (s_len - cur_len));
else if (ctx->start && (ctx->pos == ctx->len))
ctx->start = MAX(0, ctx->start - cur_len);
else if (ctx->start) else if (ctx->start)
ctx->start = MAX(0, ctx->start - cur_len); ctx->start = MAX(0, ctx->start - cur_len);
} }