WIP: try to add option -picturesRatio

it could help on #103, but it' not completed yet
(PrinterPictures::_picturesRatio is still not used)

_tests/src/test/java/nspages/printers/Test_pictures.java

@@ -7,6 +7,7 @@
 import static org.junit.Assert.assertEquals;
 
 import org.openqa.selenium.By;
+import org.openqa.selenium.Dimension;
 import org.openqa.selenium.WebElement;
 
 import nspages.Helper;
@@ -67,6 +68,27 @@ public void withoutModificationDateOption(){
 		}
 	}
 
+	@Test
+	public void withoutRatio() {
+		generatePage("pictures:start", "<nspages -exclude -usePictures>");
+		Dimension dimension = getPictureLinks().get(0).getSize();
+		assertEquals(240.0, dimension.height, 10);
+		assertEquals(300.0, dimension.width, 10);
+	}
+
+	@Test
+    public void withRatio() {
+		generatePage("pictures:start", "<nspages -exclude -usePictures -picturesRatio = \"0.5\">");
+		Dimension dimension = getPictureLinks().get(0).getSize();
+		assertEquals(120, dimension.height, 10);
+		assertEquals(300, dimension.width, 10);
+    }
+
+    @Test
+    public void withNonIntegerRatio() {
+	    //TODO
+    }
+
 	private List<WebElement> getPictureLinks(){
 		WebElement wrapper = getDriver().findElement(By.className("nspagesPicturesModeMain"));
 		return wrapper.findElements(By.tagName("a"));

optionParser.php

@@ -53,9 +53,9 @@ static function checkNbColumns(&$match, &$varAffected){
     }
 
     static function checkPictureRatio(&$match, &$varAffected){
-        if(optionParser::preg_match_wrapper("pictures?Ratio *=? *\"?([[:digit:]]*)\"?", $match, $found)) {
+        if(optionParser::preg_match_wrapper("pictures?Ratio *=? *\"?([.[:digit:]]*)\"?", $match, $found)) {
             if($found[1] != '') {
-                $varAffected = (int) $found[1];
+                $varAffected = (double) $found[1];
                 if ($varAffected <= 0){
                     $varAffected = 0.01;
                 }