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@ -161,8 +161,8 @@ static void tputc(char); |
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static void tputs(char*, int); |
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static void treset(void); |
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static void tresize(int, int); |
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static void tscrollup(int); |
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static void tscrolldown(int); |
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static void tscrollup(int, int); |
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static void tscrolldown(int, int); |
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static void tsetattr(int*, int); |
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static void tsetchar(char); |
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static void tsetscroll(int, int); |
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@ -459,15 +459,15 @@ tswapscreen(void) { |
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} |
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void |
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tscrolldown (int n) { |
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tscrolldown(int orig, int n) { |
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int i; |
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Line temp; |
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LIMIT(n, 0, term.bot-term.top+1); |
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LIMIT(n, 0, term.bot-orig+1); |
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tclearregion(0, term.bot-n+1, term.col-1, term.bot); |
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for(i = term.bot; i >= term.top+n; i--) { |
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for(i = term.bot; i >= orig+n; i--) { |
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temp = term.line[i]; |
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term.line[i] = term.line[i-n]; |
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term.line[i-n] = temp; |
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@ -475,14 +475,14 @@ tscrolldown (int n) { |
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} |
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void |
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tscrollup (int n) { |
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tscrollup(int orig, int n) { |
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int i; |
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Line temp; |
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LIMIT(n, 0, term.bot-term.top+1); |
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LIMIT(n, 0, term.bot-orig+1); |
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tclearregion(0, term.top, term.col-1, term.top+n-1); |
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tclearregion(0, orig, term.col-1, orig+n-1); |
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for(i = term.top; i <= term.bot-n; i++) { |
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for(i = orig; i <= term.bot-n; i++) { |
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temp = term.line[i]; |
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term.line[i] = term.line[i+n]; |
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term.line[i+n] = temp; |
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@ -491,9 +491,11 @@ tscrollup (int n) { |
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void |
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tnewline(void) { |
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int y = term.c.y + 1; |
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if(y > term.bot) |
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tscrollup(1), y = term.bot; |
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int y = term.c.y; |
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if(term.c.y == term.bot) |
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tscrollup(term.top, 1); |
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else |
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y++; |
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tmoveto(0, y); |
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} |
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@ -585,40 +587,18 @@ tinsertblank(int n) { |
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void |
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tinsertblankline(int n) { |
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int i; |
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Line blank; |
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int bot = term.bot; |
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if(term.c.y < term.top || term.c.y > term.bot) |
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return; |
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LIMIT(n, 0, bot-term.c.y+1); |
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tclearregion(0, bot-n+1, term.col-1, bot); |
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for(i = bot; i >= term.c.y+n; i--) { |
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/* swap deleted line <-> blanked line */ |
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blank = term.line[i]; |
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term.line[i] = term.line[i-n]; |
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term.line[i-n] = blank; |
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} |
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tscrolldown(term.c.y, n); |
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} |
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void |
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tdeleteline(int n) { |
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int i; |
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Line blank; |
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int bot = term.bot; |
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if(term.c.y < term.top || term.c.y > term.bot) |
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return; |
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LIMIT(n, 0, bot-term.c.y+1); |
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tclearregion(0, term.c.y, term.col-1, term.c.y+n-1); |
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for(i = term.c.y; i <= bot-n; i++) { |
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/* swap deleted line <-> blanked line */ |
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blank = term.line[i]; |
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term.line[i] = term.line[i+n]; |
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term.line[i+n] = blank; |
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} |
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tscrollup(term.c.y, n); |
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} |
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void |
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@ -790,11 +770,11 @@ csihandle(void) { |
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break; |
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case 'S': /* SU -- Scroll <n> line up */ |
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DEFAULT(escseq.arg[0], 1); |
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tscrollup(escseq.arg[0]); |
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tscrollup(term.top, escseq.arg[0]); |
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break; |
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case 'T': /* SD -- Scroll <n> line down */ |
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DEFAULT(escseq.arg[0], 1); |
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tscrolldown(escseq.arg[0]); |
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tscrolldown(term.top, escseq.arg[0]); |
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break; |
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case 'L': /* IL -- Insert <n> blank lines */ |
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DEFAULT(escseq.arg[0], 1); |
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@ -984,7 +964,7 @@ tputc(char c) { |
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break; |
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case 'D': /* IND -- Linefeed */ |
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if(term.c.y == term.bot) |
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tscrollup(1); |
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tscrollup(term.top, 1); |
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else |
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tmoveto(term.c.x, term.c.y+1); |
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term.esc = 0; |
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@ -995,7 +975,7 @@ tputc(char c) { |
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break; |
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case 'M': /* RI -- Reverse index */ |
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if(term.c.y == term.top) |
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tscrolldown(1); |
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tscrolldown(term.top, 1); |
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else |
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tmoveto(term.c.x, term.c.y-1); |
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term.esc = 0; |
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