int imageList::createPage(int pageno)
{
char *s;
if (currentPageNo == pageno)
return 0;
if (currentPageNo >= 1) {
/*
* We need to unlink the files which change each time a new page is
* processed. The final unlink is done by xtmpfile when pre-grohtml
* exits.
*/
unlink(imagePageName);
unlink(psPageName);
}
if (show_progress) {
fprintf(stderr, "[%d] ", pageno);
fflush(stderr);
}
#if defined(DEBUGGING)
if (debug)
fprintf(stderr, "creating page %d\n", pageno);
#endif
s = make_message("psselect -q -p%d %s %s\n",
pageno, psFileName, psPageName);
if (s == NULL)
sys_fatal("make_message");
html_system(s, 1);
s = make_message("echo showpage | "
"%s%s -q -dBATCH -dSAFER "
"-dDEVICEHEIGHTPOINTS=792 "
"-dDEVICEWIDTHPOINTS=%d -dFIXEDMEDIA=true "
"-sDEVICE=%s -r%d %s "
"-sOutputFile=%s %s -\n",
image_gen,
EXE_EXT,
(getMaxX(pageno) * image_res) / postscriptRes,
image_device,
image_res,
antiAlias,
imagePageName,
psPageName);
if (s == NULL)
sys_fatal("make_message");
html_system(s, 1);
free(s);
currentPageNo = pageno;
return 0;
}
void imageList::createImage(imageItem *i)
{
if (i->X1 != -1) {
char *s;
int x1 = max(min(i->X1, i->X2) * image_res / postscriptRes
- IMAGE_BOARDER_PIXELS,
0);
int y1 = max(image_res * vertical_offset / 72
+ min(i->Y1, i->Y2) * image_res / postscriptRes
- IMAGE_BOARDER_PIXELS,
0);
int x2 = max(i->X1, i->X2) * image_res / postscriptRes
+ IMAGE_BOARDER_PIXELS;
int y2 = image_res * vertical_offset / 72
+ max(i->Y1, i->Y2) * image_res / postscriptRes
+ 1 + IMAGE_BOARDER_PIXELS;
if (createPage(i->pageNo) == 0) {
s = make_message("pnmcut%s %d %d %d %d < %s "
"| pnmcrop -quiet | pnmtopng%s %s > %s\n",
EXE_EXT,
x1, y1, x2 - x1 + 1, y2 - y1 + 1,
imagePageName,
EXE_EXT,
TRANSPARENT,
i->imageName);
if (s == NULL)
sys_fatal("make_message");
#if defined(DEBUGGING)
if (debug) {
fprintf(stderr, s);
fflush(stderr);
}
#endif
html_system(s, 0);
free(s);
}
else {
fprintf(stderr, "failed to generate image of page %d\n", i->pageNo);
fflush(stderr);
}
#if defined(DEBUGGING)
}
else {
if (debug) {
fprintf(stderr, "ignoring image as x1 coord is -1\n");
fflush(stderr);
}
#endif
}
}
