109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
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/*
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* TOIlet The Other Implementation’s letters
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* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
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* All Rights Reserved
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*
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* $Id$
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the Do What The Fuck You Want To
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* Public License, Version 2, as published by Sam Hocevar. See
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* http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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/*
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* This file contains text to canvas rendering functions.
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*/
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#include "config.h"
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#if defined(HAVE_INTTYPES_H)
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# include <inttypes.h>
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#endif
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#include <stdlib.h>
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#include <cucul.h>
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#include "toilet.h"
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#include "render.h"
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static int feed_tiny(context_t *, uint32_t);
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static int flush_tiny(context_t *);
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static int end_tiny(context_t *);
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int init_tiny(context_t *cx)
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{
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cx->ew = 16;
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cx->eh = 2;
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cx->feed = feed_tiny;
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cx->flush = flush_tiny;
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cx->end = end_tiny;
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return 0;
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}
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static int feed_tiny(context_t *cx, uint32_t ch)
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{
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switch(ch)
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{
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case (uint32_t)'\r':
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return 0;
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case (uint32_t)'\n':
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cx->x = 0;
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cx->y++;
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return 0;
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case (uint32_t)'\t':
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cx->x = (cx->x & ~7) + 8;
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return 0;
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}
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/* Check whether we reached the end of the screen */
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if(cx->x && cx->x + 1 > cx->term_width)
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{
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cx->x = 0;
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cx->y++;
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}
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/* Check whether the current canvas is large enough */
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if(cx->x + 1 > cx->w)
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{
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cx->w = cx->x + 1 < cx->term_width ? cx->x + 1 : cx->term_width;
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if(cx->w > cx->ew)
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cx->ew = cx->ew + cx->ew / 2;
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}
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if(cx->y + 1 > cx->h)
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{
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cx->h = cx->y + 1;
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if(cx->h > cx->eh)
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cx->eh = cx->eh + cx->eh / 2;
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}
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cucul_set_canvas_size(cx->cv, cx->ew, cx->eh);
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cucul_putchar(cx->cv, cx->x, cx->y, ch);
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cx->x++;
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return 0;
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}
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static int flush_tiny(context_t *cx)
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{
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cx->torender = cx->cv;
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cucul_set_canvas_size(cx->torender, cx->w, cx->h);
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cx->ew = 16;
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cx->eh = 2;
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cx->x = cx->y = 0;
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cx->w = cx->h = 0;
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cx->cv = cucul_create_canvas(cx->ew, cx->eh);
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return 0;
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}
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static int end_tiny(context_t *cx)
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{
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return 0;
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}
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