From 6b2096cea7d6ee1dfe139c612fe8d78d355eec3a Mon Sep 17 00:00:00 2001
From: Dominic Radermacher <blip@mockmoon-cybernetics.ch>
Date: Thu, 28 Mar 2019 16:10:54 +0100
Subject: [PATCH] generate the cutmark as image instead of ptouch-commands, so
 it can be saved as png, too

---
 include/ptouch.h   |  1 -
 src/libptouch.c    | 28 ----------------------------
 src/ptouch-print.c | 26 +++++++++++++++++++++++++-
 3 files changed, 25 insertions(+), 30 deletions(-)

diff --git a/include/ptouch.h b/include/ptouch.h
index 41ddc05..b1cc7ad 100644
--- a/include/ptouch.h
+++ b/include/ptouch.h
@@ -81,7 +81,6 @@ int ptouch_send(ptouch_dev ptdev, uint8_t *data, int len);
 int ptouch_init(ptouch_dev ptdev);
 int ptouch_lf(ptouch_dev ptdev);
 int ptouch_ff(ptouch_dev ptdev);
-int ptouch_cutmark(ptouch_dev ptdev);
 int ptouch_eject(ptouch_dev ptdev);
 int ptouch_getstatus(ptouch_dev ptdev);
 int ptouch_getmaxwidth(ptouch_dev ptdev);
diff --git a/src/libptouch.c b/src/libptouch.c
index cedbec8..7883a12 100644
--- a/src/libptouch.c
+++ b/src/libptouch.c
@@ -189,34 +189,6 @@ int ptouch_eject(ptouch_dev ptdev)
 	return ptouch_send(ptdev, (uint8_t *)cmd, strlen(cmd));
 }
 
-/* print a "cut here" mark (it's just a dashed line) */
-#define CUTMARK_SPACING 5
-int ptouch_cutmark(ptouch_dev ptdev)
-{
-	uint8_t buf[32];
-	int i,len=16;
-
-	for (i=0; i<CUTMARK_SPACING; i++) {
-		ptouch_lf(ptdev);
-	}
-	ptouch_rasterstart(ptdev);
-	buf[0]=0x47;
-	buf[1]=len;
-	buf[2]=0;
-	memset(buf+3, 0, len);
-	int offset=(64-ptouch_getmaxwidth(ptdev)/2);
-	for (i=0; i<ptouch_getmaxwidth(ptdev); i++) {
-		if ((i%8) <= 3) {	/* pixels 0-3 get set, 4-7 are unset */
-			buf[3+15-((offset+i)/8)] |= 1<<((offset+i)%8);
-		}
-	}
-	ptouch_send(ptdev, buf, len+3);
-	for (i=0; i<CUTMARK_SPACING; i++) {
-		ptouch_lf(ptdev);
-	}
-	return 0;
-}
-
 void ptouch_rawstatus(uint8_t raw[32])
 {
 	fprintf(stderr, _("debug: dumping raw status bytes\n"));
diff --git a/src/ptouch-print.c b/src/ptouch-print.c
index a5b1f1e..9ef1b2b 100644
--- a/src/ptouch-print.c
+++ b/src/ptouch-print.c
@@ -294,6 +294,28 @@ gdImage *img_append(gdImage *in_1, gdImage *in_2)
 	return out;
 }
 
+gdImage *img_cutmark(int tape_width)
+{
+	gdImage *out=NULL;
+	int style_dashed[6];
+
+	out=gdImageCreatePalette(9, tape_width);
+	if (out == NULL) {
+		return NULL;
+	}
+	gdImageColorAllocate(out, 255, 255, 255);
+	int black=gdImageColorAllocate(out, 0, 0, 0);
+	style_dashed[0]=gdTransparent;
+	style_dashed[1]=gdTransparent;
+	style_dashed[2]=gdTransparent;
+	style_dashed[3]=black;
+	style_dashed[4]=black;
+	style_dashed[5]=black;
+	gdImageSetStyle(out, style_dashed, 6);
+	gdImageLine(out, 5, 0, 5, tape_width-1, gdStyled);
+	return out;
+}
+
 void usage(char *progname)
 {
 	printf("usage: %s [options] <print-command(s)>\n", progname);
@@ -442,7 +464,9 @@ int main(int argc, char *argv[])
 				gdImageDestroy(im);
 			}
 		} else if (strcmp(&argv[i][1], "-cutmark") == 0) {
-			ptouch_cutmark(ptdev);
+			im=img_cutmark(tape_width);
+			out=img_append(out, im);
+			gdImageDestroy(im);
 		} else {
 			usage(argv[0]);
 		}