m/ptouch-print
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Code Issues Releases Activity

fix text centering

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This commit is contained in:
Dominic Radermacher 2021-10-11 19:31:15 +02:00
parent f74d068776
commit e968176637
1 changed files with 13 additions and 2 deletions
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15
src/ptouch-print.c
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@ -89,7 +89,10 @@ int print_img(ptouch_dev ptdev, gdImage *im)
printf(_("maximum printing width for this tape is %ipx\n"), tape_width);
return -1;
}
offset=64-(gdImageSY(im)/2); /* always print centered */
//offset=64-(gdImageSY(im)/2); /* always print centered */
size_t max_pixels=ptouch_get_max_width(ptdev);
offset=((int)max_pixels / 2)-(gdImageSY(im)/2); /* always print centered */
printf("max_pixels=%d, offset=%d\n", max_pixels, offset);
if ((ptdev->devinfo->flags & FLAG_RASTER_PACKBITS) == FLAG_RASTER_PACKBITS) {
if (debug) {
printf("enable PackBits mode\n");
@ -277,10 +280,18 @@ gdImage *render_text(char *font, char *line[], int lines, int tape_width)
if (debug) {
printf("debug: needed (max) height is %ipx\n", max_height);
}
if ((max_height * lines) > tape_width) {
printf("Font size %d too large for %d lines\n", fsz, lines);
return NULL;
}
/* calculate unused pixels */
int unused_px = tape_width - (max_height * lines);
/* now render lines */
for (i=0; i<lines; i++) {
int ofs=get_baselineoffset(line[i], font_file, fsz);
int pos=((i)*(tape_width/(lines)))+(max_height)-ofs-1;
//int pos=((i)*(tape_width/(lines)))+(max_height)-ofs-1;
int pos=((i)*(tape_width/(lines)))+(max_height)-ofs;
pos += (unused_px/lines) / 2;
if (debug) {
printf("debug: line %i pos=%i ofs=%i\n", i+1, pos, ofs);
}