summaryrefslogtreecommitdiffstats
path: root/libcairobarcode/code39.vala
diff options
context:
space:
mode:
authorSebastian Reichel <sre@ring0.de>2018-06-29 00:56:47 +0200
committerSebastian Reichel <sre@ring0.de>2018-06-29 14:10:59 +0200
commit17560f8bf49a0be2e0b490159e29f4894fe12cba (patch)
tree50ab47990e4e2cdb521bea732b67c9471815047a /libcairobarcode/code39.vala
parenta5d597f4f67349195a6508b15097d1f1d5181c8d (diff)
downloadserial-barcode-scanner-17560f8bf49a0be2e0b490159e29f4894fe12cba.tar.bz2
libcairobarcode: move to src
Diffstat (limited to 'libcairobarcode/code39.vala')
-rw-r--r--libcairobarcode/code39.vala128
1 files changed, 0 insertions, 128 deletions
diff --git a/libcairobarcode/code39.vala b/libcairobarcode/code39.vala
deleted file mode 100644
index dd3d8c5..0000000
--- a/libcairobarcode/code39.vala
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Copyright 2014, Sebastian Reichel <sre@ring0.de>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-public class Code39 {
- Cairo.Context ctx;
- double width;
- double height;
-
- /* 0 = wide black, 1 = narrow black, 2 = wide white, 3 = narrow white */
- static const uint32[] lookup_table = {
- 0x1d8cd, 0xd9dc, 0x1c9dc, 0xc9dd, 0x1d8dc, 0xd8dd, 0x1c8dd, 0x1d9cc,
- 0xd9cd, 0x1c9cd, 0xdd9c, 0x1cd9c, 0xcd9d, 0x1dc9c, 0xdc9d, 0x1cc9d,
- 0x1dd8c, 0xdd8d, 0x1cd8d, 0x1dc8d, 0xddd8, 0x1cdd8, 0xcdd9, 0x1dcd8,
- 0xdcd9, 0x1ccd9, 0x1ddc8, 0xddc9, 0x1cdc9, 0x1dcc9, 0x9ddc, 0x18ddc,
- 0x8ddd, 0x19cdc, 0x9cdd, 0x18cdd, 0x19dcc, 0x9dcd, 0x18dcd, 0x1999d,
- 0x199d9, 0x19d99, 0x1d999, 0x19ccd
- };
-
- public Code39(Cairo.Context ctx, double width, double height) {
- this.ctx = ctx;
- this.width = width;
- this.height = height;
- }
-
- private int lookup_index(char c) throws BarcodeError {
- if(c >= '0' && c <= '9')
- return c - '0';
- if(c >= 'A' && c <= 'Z')
- return c - 'A' + 10;
- switch (c) {
- case '-':
- return 36;
- case '.':
- return 37;
- case ' ':
- return 38;
- case '$':
- return 39;
- case '/':
- return 40;
- case '+':
- return 41;
- case '%':
- return 42;
- case '*':
- return 43;
- default:
- throw new BarcodeError.UNEXPECTED_CHARACTER("Character '%c' is not allowed in Code 39".printf(c));
- }
- }
-
- private uint32 lookup(char c) throws BarcodeError {
- return lookup_table[lookup_index(c)];
- }
-
- private void draw_line(bool black, double linewidth) {
- double x,y;
-
- if(black)
- ctx.set_source_rgb(0, 0, 0);
- else
- ctx.set_source_rgb(1, 1, 1);
-
- ctx.rel_line_to(0,height);
- ctx.rel_move_to(linewidth,-height);
-
- ctx.get_current_point(out x, out y);
- ctx.stroke();
- ctx.move_to(x,y);
- }
-
- public void draw(string code) throws BarcodeError {
- string mycode = code;
-
- if(!mycode.has_prefix("*"))
- mycode = "*" + mycode;
- if(!mycode.has_suffix("*"))
- mycode = mycode + "*";
-
- double linewidth = width / (mycode.length * 13.0);
-
- ctx.save();
- ctx.set_line_width(linewidth);
- ctx.move_to(0,0);
- ctx.rel_move_to(0.5*linewidth,0);
-
- for(int i=0; i<mycode.length; i++) {
- var format = lookup(mycode[i]);
-
- for(int j=8; j>=0; j--) {
- var line = (format >> (2*j)) & 0x3;
-
- switch(line) {
- case 0:
- draw_line(true, linewidth);
- draw_line(true, linewidth);
- break;
- case 1:
- draw_line(true, linewidth);
- break;
- case 2:
- draw_line(false, linewidth);
- draw_line(false, linewidth);
- break;
- default:
- draw_line(false, linewidth);
- break;
- }
- }
-
- draw_line(false, linewidth);
- }
-
- ctx.restore();
- }
-}