Updates to #114

- Add tests
- Add to README.md
- Add to contributors
- Update example to include widths
- Update default to match initialised printer.

CONTRIBUTORS.md

@@ -1,7 +1,7 @@
 # escpos-php contributors
 
 This file contains a list of people who have made contributions of 
-code which to the public repository of escpos-php.
+code which appear in the public repository of escpos-php.
 
 Main repository: [mike42/escpos-php](https://github.com/mike42/escpos-php) ([online contributor list](https://github.com/mike42/escpos-php/graphs/contributors))
 
@@ -10,6 +10,7 @@ Main repository: [mike42/escpos-php](https://github.com/mike42/escpos-php) ([onl
 - [Mareks Sudniks](https://github.com/marech)
 - [matiasgaston](https://github.com/matiasgaston)
 - [Mike Stivala](https://github.com/brndwgn)
+- [Nicholas Long](https://github.com/longsview)
 
 Via fork: [wdoyle/EpsonESCPOS-PHP](https://github.com/wdoyle/EpsonESCPOS-PHP):
 

README.md

@@ -354,6 +354,13 @@ Parameters:
 
 - `int $height`: Height in dots. If not specified, 8 will be used.
 
+### setBarcodeWidth($width)
+Set barcode bar width.
+
+Parameters:
+
+- `int $width`: Bar width in dots. If not specified, 3 will be used. Values above 6 appear to have no effect.
+
 ### setColor($color)
 Select print color - on printers that support multiple colors.
 

example/barcode.php

@@ -5,17 +5,41 @@
 
 $connector = new FilePrintConnector("php://stdout");
 $printer = new Printer($connector);
+
+/* Height and width */
+$printer->selectPrintMode(Printer::MODE_DOUBLE_HEIGHT | Printer::MODE_DOUBLE_WIDTH);
+$printer->text("Height and bar width\n");
+$printer->selectPrintMode();
+$heights = array(1, 2, 4, 8, 16, 32);
+$widths = array(1, 2, 3, 4, 5, 6, 7, 8);
+$printer -> text("Default look\n");
+$printer->barcode("ABC", Printer::BARCODE_CODE39);
+
+$printer->setBarcodeHeight(40);
+foreach($heights as $height) {
+    $printer -> text("\nHeight $height\n");
+    $printer->setBarcodeHeight($height);
+    $printer->barcode("ABC", Printer::BARCODE_CODE39);
+}
+foreach($widths as $width) {
+    $printer -> text("\nWidth $width\n");
+    $printer->setBarcodeWidth($width);
+    $printer->barcode("ABC", Printer::BARCODE_CODE39);
+}
+$printer->feed();
+// Set to something sensible for the rest of the examples
 $printer->setBarcodeHeight(40);
+$printer->setBarcodeWidth(2);
 
 /* Text position */
 $printer->selectPrintMode(Printer::MODE_DOUBLE_HEIGHT | Printer::MODE_DOUBLE_WIDTH);
 $printer->text("Text position\n");
 $printer->selectPrintMode();
 $hri = array (
-        Printer::BARCODE_TEXT_NONE => "No text",
-        Printer::BARCODE_TEXT_ABOVE => "Above",
-        Printer::BARCODE_TEXT_BELOW => "Below",
-        Printer::BARCODE_TEXT_ABOVE | Printer::BARCODE_TEXT_BELOW => "Both"
+    Printer::BARCODE_TEXT_NONE => "No text",
+    Printer::BARCODE_TEXT_ABOVE => "Above",
+    Printer::BARCODE_TEXT_BELOW => "Below",
+    Printer::BARCODE_TEXT_ABOVE | Printer::BARCODE_TEXT_BELOW => "Both"
 );
 foreach ($hri as $position => $caption) {
     $printer->text($caption . "\n");

src/Mike42/Escpos/Printer.php

@@ -627,11 +627,12 @@ public function setBarcodeHeight($height = 8)
     }
 
     /**
-     * Set barcode width.
+     * Set barcode bar width.
      *
-     * @param int $width Width in dots. If not specified, 2 will be used.
+     * @param int $width Bar width in dots. If not specified, 3 will be used.
+     *  Values above 6 appear to have no effect.
      */
-    public function setBarcodeWidth($width = 2)
+    public function setBarcodeWidth($width = 3)
     {
         self::validateInteger($width, 1, 255, __FUNCTION__);
         $this -> connector -> write(self::GS . "w" . chr($width));

test/unit/EscposTest.php

@@ -390,12 +390,43 @@ public function testSetBarcodeHeightTooLarge()
         $this -> printer -> setBarcodeHeight(256);
     }
 
-    public function tesSetBarcodeHeightNonInteger()
+    public function testSetBarcodeHeightNonInteger()
     {
         $this -> setExpectedException('InvalidArgumentException');
         $this -> printer -> setBarcodeHeight('hello');
     }
 
+    /* Set barcode width */
+    public function testSetBarcodeWidthDefault()
+    {
+        $this -> printer -> setBarcodeWidth();
+        $this -> checkOutput("\x1b@\x1dw\x03");
+    }
+
+    public function testBarcodeWidth1()
+    {
+        $this -> printer -> setBarcodeWidth(1);
+        $this -> checkOutput("\x1b@\x1dw\x01");
+    }
+
+    public function testSetBarcodeWidthNegative()
+    {
+        $this -> setExpectedException('InvalidArgumentException');
+        $this -> printer -> setBarcodeWidth(-1);
+    }
+
+    public function testSetBarcodeWidthTooLarge()
+    {
+        $this -> setExpectedException('InvalidArgumentException');
+        $this -> printer -> setBarcodeWidth(256);
+    }
+
+    public function testSetBarcodeWidthNonInteger()
+    {
+        $this -> setExpectedException('InvalidArgumentException');
+        $this -> printer -> setBarcodeWidth('hello');
+    }
+
     /* Barcode text position */
     public function testSetBarcodeTextPositionDefault()
     {