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Súbor: [Platon] / cpdf / svga.c (stiahnutie)

Revízia 1.7, Tue Feb 18 19:29:03 2003 UTC (21 years, 5 months ago) by lynx


Zmeny od 1.6: +61 -31 [lines]

sync...

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vga.h>
#include <vgagl.h>

#include "parse.h"
#include "cpdf.h"
#include "svga.h"
#include "utils.h"
#include "filter.h"
int x, y;
float tfs;
int w0 = 0,w1 = 0,tc = 0,th = 100,tw = 0;
char *strndup(const char *s, size_t n);

void donothing(char *line)
{
    return;
}

void text(char *line)
{
    int n;
    float uno_numero;
    char *p = NULL,*dup;
    if ((p = strstr(line, "Td")) != NULL) {
            for(p -= 2;!isalpha(*p);p--);    
            sscanf(p + 1,"%f %f Td",&trm[2][0],&trm[2][1]);    
    }
    if ((p = strstr(line, "Tf")) != NULL) {
        for(p -= 2;*p != ' ';p--);
        sscanf(p + 1,"%f Tf",&tfs);
    }
    if ((p = strstr(line, "TJ")) != NULL) {
        while (*(p - 1) != '[')
            p--;
        while (strncmp(p,"]TJ",3)) {
            p++;
            n = strchr(p,')') - p;
            dup = strndup(p,n);
            dup[n] = '\0';
            p = strchr(p,')');
            if(*(p + 1) != ']') { 
            n = sscanf(p, ")%f(", &uno_numero);
            x = ((w0 - uno_numero / 1000) * tfs + tc + tw) * th;
            y = (w1 - uno_numero / 1000) * tfs + tc + tw;
            p += n + 1;
            }
#ifndef DEBUG
            gl_writen(x, y, n, dup);
#endif
            p++;
        }
    }

    if ((p = strstr(line, "Tj")) != NULL) {
        while (*(p - 1) != '(')
            p--;
        while (strncmp(p, ")Tj", 3)) {
#ifndef DEBUG
            gl_writen(x, y, sizeof(char), p);
#endif
            x += 10;
            if (x == screen.x - 10) {
                x = 10;
                y += 10;
            }
            if (y == screen.y - 10)
                y = 10;
            p++;
        }
    }
return;
}

void render(void)
{
    char *content, *p, *endline, *dup;
    unsigned long dstlen;
    struct page *page;
    void (*fun) (char *line) = donothing;
    page = (struct page *) get_object(page_tree[current_page], NULL);
    if (!page)
        return;
    dstlen = page->contents->length << 3;
    content = (char *) xcalloc((int) dstlen, sizeof(char));
#ifndef DEBUG
    gl_setfont(8, 8, gl_font8x8);
    gl_setwritemode(FONT_COMPRESSED + WRITEMODE_OVERWRITE);
    gl_setfontcolors(0xFFFFFFFF, 0);
#endif
    if (page->contents->filter != -1) {
        filter(page->contents->filter,
               page->contents->stream,
               page->contents->length, content, &dstlen);
        if (dstlen != page->contents->length << 3)
            content = (char *) realloc(content, dstlen);
    }
    write(2, content, (int) dstlen);
    p = content;
    x = y = 10;
    while ((endline = strchr(p, '\n')) != NULL) {
        dup = strndup(p, endline - p + 1);
        if (strstr(dup, "BT"))
            fun = text;
        if (strstr(dup, "ET"))
            fun = donothing;
        if (strstr(dup,"cm")) {
            tlm[2][2] = 1.0;
            sscanf(dup,"%f %f %f %f %f %f cm",
                &tlm[0][0],&tlm[0][1],&tlm[1][0],
                &tlm[1][1],&tlm[2][0],&tlm[2][1]);
            fun = donothing;
        }
        fun(dup);
        free(dup);
        p = endline + 1;
    }
#ifndef DEBUG
    gl_copyscreen(physicalscreen);
    gl_clearscreen(0xFFFFFFFF);
#endif
    free(content);
    getchar();
    return;
}

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