libcairobarcode: move to src

6 files changed, 306 insertions, 3 deletions

diff --git a/src/libcairobarcode/.gitignore b/src/libcairobarcode/.gitignore
new file mode 100644
index 0000000..8721023
--- /dev/null
+++ b/src/libcairobarcode/.gitignore
@@ -0,0 +1,3 @@
+libcairobarcode.h
+libcairobarcode.so
+libcairobarcode.vapi
diff --git a/src/libcairobarcode/Makefile b/src/libcairobarcode/Makefile
new file mode 100644
index 0000000..b51cf30
--- /dev/null
+++ b/src/libcairobarcode/Makefile
@@ -0,0 +1,11 @@
+include ../config.mk
+
+all: libcairobarcode.so
+
+libcairobarcode.so: ean.vala code39.vala error.vala
+	${VALAC} -o $@ -H libcairobarcode.h --library libcairobarcode -X -fPIC -X -shared --pkg cairo $^
+
+clean:
+	rm -f libcairobarcode.h libcairobarcode.so libcairobarcode.vapi
+
+.PHONY: all clean
diff --git a/src/libcairobarcode/code39.vala b/src/libcairobarcode/code39.vala
new file mode 100644
index 0000000..ca5451c
--- /dev/null
+++ b/src/libcairobarcode/code39.vala
@@ -0,0 +1,128 @@
+/* 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 */
+	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();
+	}
+}
diff --git a/src/libcairobarcode/ean.vala b/src/libcairobarcode/ean.vala
new file mode 100644
index 0000000..4a4f621
--- /dev/null
+++ b/src/libcairobarcode/ean.vala
@@ -0,0 +1,142 @@
+/* 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 EAN {
+	Cairo.Context ctx;
+	double width;
+	double height;
+	const double marker_length_diff = 10.0;
+	double basex;
+	double basey;
+
+	const uint8[] C = { 0x00, 0x0b, 0x0d, 0x0e, 0x13, 0x19, 0x1c, 0x15, 0x16, 0x1a };
+
+	static uint8[,] lookup = {
+		{ 0x0d, 0x19, 0x13, 0x3d, 0x23, 0x31, 0x2f, 0x3b, 0x37, 0x0b }, /* L */
+		{ 0x27, 0x33, 0x1b, 0x21, 0x1d, 0x39, 0x05, 0x11, 0x09, 0x17 }, /* G */
+		{ 0x72, 0x66, 0x6c, 0x42, 0x5c, 0x4e, 0x50, 0x44, 0x48, 0x74 }  /* R */
+	};
+
+	public EAN(Cairo.Context ctx, double width, double height) {
+		this.ctx = ctx;
+		this.width = width / 95.0;
+		this.height = height;
+	}
+
+	private void draw_line(bool black) {
+		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(width,-height);
+
+		ctx.get_current_point(out x, out y);
+		ctx.stroke();
+		ctx.move_to(x,y);
+	}
+
+	private void draw_startstop() {
+		draw_line(true);
+		draw_line(false);
+		draw_line(true);
+	}
+
+	private void draw_middle() {
+		draw_line(false);
+		draw_line(true);
+		draw_line(false);
+		draw_line(true);
+		draw_line(false);
+	}
+
+	private void draw_number_text(uint8 number) {
+		double x, y;
+		ctx.get_current_point(out x, out y);
+		ctx.set_source_rgb(0, 0, 0);
+
+		ctx.stroke();
+		ctx.move_to(x,y);
+	}
+
+	private void draw_number(uint8 number, uint8 type) {
+		draw_number_text(number);
+
+		for(int i=6; i>=0; i--) {
+			var bit = (lookup[type,number] >> i) & 1;
+			draw_line(bit == 1);
+		}
+	}
+
+	private uint8 get_number(string ean, int pos) {
+		return (uint8) int.parse("%c".printf(ean[pos]));
+	}
+
+	private void draw13(string ean) {
+		/* need some extra space for the checksum */
+		width = (width * 95.0) / 102.0;
+
+		uint8 LG = C[get_number(ean, 0)];
+
+		draw_startstop();
+		for(int i=1, x = 5; i<7; i++, x--) {
+			uint8 type = (uint8) (LG >> x) & 1;
+			draw_number(get_number(ean,i), type);
+		}
+		draw_middle();
+		for(int i=7; i<13; i++)
+			draw_number(get_number(ean,i), 2);
+		draw_startstop();
+
+		/* remove extra space for the checksum */
+		width = (width * 102.0) / 95.0;
+
+	}
+
+	private void draw8(string ean) {
+		draw_startstop();
+		for(int i=0; i<4; i++)
+			draw_number(get_number(ean,i), 0);
+		draw_middle();
+		for(int i=4; i<8; i++)
+			draw_number(get_number(ean,i), 2);
+		draw_startstop();
+	}
+
+	public void draw(string ean) throws BarcodeError {
+		ctx.save();
+		ctx.set_line_width(width);
+		ctx.get_current_point(out basex, out basey);
+		ctx.rel_move_to(0.5*width,0);
+
+		for(int i=0; i<ean.length; i++) {
+			if(ean[i] < '0' || ean[i] > '9') {
+				throw new BarcodeError.UNEXPECTED_CHARACTER("Character '%c' is not allowed in EAN".printf(ean[i]));
+			}
+		}
+
+		if(ean.length == 13)
+			draw13(ean);
+		else if(ean.length == 8)
+			draw8(ean);
+		else
+			throw new BarcodeError.UNEXPECTED_LENGTH("length of EAN is incorrect (must be 8 or 13)");
+
+		ctx.restore();
+	}
+}
diff --git a/src/libcairobarcode/error.vala b/src/libcairobarcode/error.vala
new file mode 100644
index 0000000..f81df91
--- /dev/null
+++ b/src/libcairobarcode/error.vala
@@ -0,0 +1,19 @@
+/* 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 errordomain BarcodeError {
+	UNEXPECTED_CHARACTER,
+	UNEXPECTED_LENGTH
+}
diff --git a/src/pdf-stock/Makefile b/src/pdf-stock/Makefile
index c310c65..4e8f472 100644
--- a/src/pdf-stock/Makefile
+++ b/src/pdf-stock/Makefile
@@ -1,18 +1,18 @@
 include ../../config.mk
 
-LIBCAIROBARCODE=-X -I../../libcairobarcode -X -L../../libcairobarcode -X -lcairobarcode
+LIBCAIROBARCODE=-X -I../libcairobarcode -X -L../libcairobarcode -X -lcairobarcode
 
 all: pdf-stock
 	@echo > /dev/null
 
-pdf-stock: main.vala pdf-stock.vala ../database/db-interface.vala ../price.vapi ../../libcairobarcode/libcairobarcode.vapi
+pdf-stock: main.vala pdf-stock.vala ../database/db-interface.vala ../price.vapi ../libcairobarcode/libcairobarcode.vapi
 	${VALAC} -X -D'GETTEXT_PACKAGE="shopsystem"' -X -w ${LIBCAIROBARCODE} -o $@ --pkg cairo --pkg pangocairo --pkg gio-2.0 --pkg posix $^
 
 test: test.vala pdf-stock-interface.vala
 	${VALAC} -X -D'GETTEXT_PACKAGE="shopsystem"' -X -w -o $@ --pkg gio-2.0 $^
 
 run: pdf-stock
-	LD_LIBRARY_PATH=../../libcairobarcode ./pdf-stock
+	LD_LIBRARY_PATH=../libcairobarcode ./pdf-stock
 
 clean:
 	rm -rf pdf-stock test