From 5b455cba0b88255f58d1f9e00ab41770678b8828 Mon Sep 17 00:00:00 2001
From: Andreas Fitzek <andreas.fitzek@iaik.tugraz.at>
Date: Tue, 12 Aug 2014 11:29:51 +0200
Subject: Fixed PDF automatic positioning

---
 .../at/gv/egiz/pdfas/common/utils/StringUtils.java | 33 ++++++++++++++++++++++
 .../at/knowcenter/wag/egov/egiz/pdf/PDFPage.java   |  4 +--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/common/utils/StringUtils.java b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/common/utils/StringUtils.java
index c110b93d..dbea3c70 100644
--- a/pdf-as-common/src/main/java/at/gv/egiz/pdfas/common/utils/StringUtils.java
+++ b/pdf-as-common/src/main/java/at/gv/egiz/pdfas/common/utils/StringUtils.java
@@ -98,4 +98,37 @@ public class StringUtils {
 		String text = new String(replace_bytes, "windows-1252");
 		return text;
 	}
+	
+	public static String whiteSpaceTrim(String string) {
+		String str = startStrip(string);
+		return endStrip(str);
+	}
+
+	private static String startStrip(final String str) {
+		int strLen;
+		if (str == null || (strLen = str.length()) == 0) {
+			return str;
+		}
+		int start = 0;
+		while (start != strLen && isEmptySpace(str.charAt(start))) {
+			start++;
+		}
+		return str.substring(start);
+	}
+	
+	private static String endStrip(final String str) {
+		int end;
+		if (str == null || (end = str.length()) == 0) {
+			return str;
+		}
+		while (end != 0 && isEmptySpace(str.charAt(end - 1))) {
+			end++;
+		}
+
+		return str.substring(0, end);
+	}
+	
+	private static boolean isEmptySpace(char c) {
+		return Character.isWhitespace(c) || Character.isSpaceChar(c);
+	}
 }
diff --git a/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
index 6911c698..84574b41 100644
--- a/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
+++ b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
@@ -56,7 +56,6 @@ import java.util.Map;
 
 import org.apache.commons.lang3.math.NumberUtils;
 import org.apache.pdfbox.cos.COSBase;
-import org.apache.pdfbox.cos.COSDictionary;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.cos.COSStream;
 import org.apache.pdfbox.pdmodel.PDPage;
@@ -335,7 +334,8 @@ public class PDFPage extends PDFTextStripper {
 		}
 
 		// store ypos of the char if it is not empty
-		if (!character.equals(" ") && current_y > this.max_character_ypos) {
+		if (!at.gv.egiz.pdfas.common.utils.StringUtils.whiteSpaceTrim(character).isEmpty() && 
+				current_y > this.max_character_ypos) {
 			this.max_character_ypos = current_y;
 		}
 
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