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-rw-r--r--pdf-as-pdfbox/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java157
1 files changed, 88 insertions, 69 deletions
diff --git a/pdf-as-pdfbox/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java b/pdf-as-pdfbox/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
index a7aaf2df..48e6d3d2 100644
--- a/pdf-as-pdfbox/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
+++ b/pdf-as-pdfbox/src/main/java/at/knowcenter/wag/egov/egiz/pdf/PDFPage.java
@@ -93,7 +93,8 @@ import at.knowcenter.wag.egov.egiz.pdf.operator.path.painting.StrokePath;
/**
* PDFPage is an inner class that is used to calculate the page length of a PDF
* Document page. It extends the PDFTextStripper class and implement one
- * interested method: {@link at.knowcenter.wag.egov.egiz.pdf.PDFPage#showCharacter(TextPosition)}<br>
+ * interested method:
+ * {@link at.knowcenter.wag.egov.egiz.pdf.PDFPage#showCharacter(TextPosition)}<br>
* This method is called when processing the FileStream. By calling the method
* {@link org.apache.pdfbox.util.PDFStreamEngine#processStream(org.apache.pdfbox.pdmodel.PDPage, org.apache.pdfbox.pdmodel.PDResources, org.pdfbox.cos.COSStream)}
* the implemented method showCharacter is called.
@@ -105,7 +106,7 @@ public class PDFPage extends PDFTextStripper {
/**
* The logger definition.
*/
- private static final Logger logger = LoggerFactory.getLogger(PDFPage.class);
+ private static final Logger logger = LoggerFactory.getLogger(PDFPage.class);
/**
* The maximum (lowest) y position of a character.
@@ -141,15 +142,16 @@ public class PDFPage extends PDFTextStripper {
*
* @throws java.io.IOException
*/
- public PDFPage(float effectivePageHeight, boolean legacy32) throws IOException {
+ public PDFPage(float effectivePageHeight, boolean legacy32)
+ throws IOException {
super();
this.effectivePageHeight = effectivePageHeight;
OperatorProcessor newInvoke = new MyInvoke(this);
newInvoke.setContext(this);
- this.registerOperatorProcessor("Do", newInvoke);
-
+ this.registerOperatorProcessor("Do", newInvoke);
+
if (!legacy32) {
registerCustomPathOperators();
}
@@ -165,26 +167,32 @@ public class PDFPage extends PDFTextStripper {
// *** path construction
- this.registerOperatorProcessor("m", new MoveTo(this));
- this.registerOperatorProcessor("l", new LineTo(this));
- this.registerOperatorProcessor("c", new CurveTo(this));
- this.registerOperatorProcessor("y", new CurveToReplicateFinalPoint(this));
- this.registerOperatorProcessor("v", new CurveToReplicateInitialPoint(this));
- this.registerOperatorProcessor("h", new ClosePath(this));
+ this.registerOperatorProcessor("m", new MoveTo(this));
+ this.registerOperatorProcessor("l", new LineTo(this));
+ this.registerOperatorProcessor("c", new CurveTo(this));
+ this.registerOperatorProcessor("y",
+ new CurveToReplicateFinalPoint(this));
+ this.registerOperatorProcessor("v", new CurveToReplicateInitialPoint(
+ this));
+ this.registerOperatorProcessor("h", new ClosePath(this));
// *** path painting
// "S": stroke path
- this.registerOperatorProcessor("S", new StrokePath(this));
- this.registerOperatorProcessor("s", new CloseAndStrokePath(this));
- this.registerOperatorProcessor("f", new FillPathNonZeroWindingNumberRule(this));
- this.registerOperatorProcessor("F", new FillPathNonZeroWindingNumberRule(this));
- this.registerOperatorProcessor("f*", new FillPathEvenOddRule(this));
- this.registerOperatorProcessor("b", new CloseFillNonZeroAndStrokePath(this));
- this.registerOperatorProcessor("B", new FillNonZeroAndStrokePath(this));
- this.registerOperatorProcessor("b*", new CloseFillEvenOddAndStrokePath(this));
- this.registerOperatorProcessor("B*", new FillEvenOddAndStrokePath(this));
- this.registerOperatorProcessor("n", new EndPath(this));
+ this.registerOperatorProcessor("S", new StrokePath(this));
+ this.registerOperatorProcessor("s", new CloseAndStrokePath(this));
+ this.registerOperatorProcessor("f",
+ new FillPathNonZeroWindingNumberRule(this));
+ this.registerOperatorProcessor("F",
+ new FillPathNonZeroWindingNumberRule(this));
+ this.registerOperatorProcessor("f*", new FillPathEvenOddRule(this));
+ this.registerOperatorProcessor("b", new CloseFillNonZeroAndStrokePath(
+ this));
+ this.registerOperatorProcessor("B", new FillNonZeroAndStrokePath(this));
+ this.registerOperatorProcessor("b*", new CloseFillEvenOddAndStrokePath(
+ this));
+ this.registerOperatorProcessor("B*", new FillEvenOddAndStrokePath(this));
+ this.registerOperatorProcessor("n", new EndPath(this));
// Note: The graphic context
// (org.pdfbox.pdmodel.graphics.PDGraphicsState) of the underlying
@@ -235,11 +243,11 @@ public class PDFPage extends PDFTextStripper {
float lowerBoundYPositionFromTop;
PDRectangle boundaryBox = this.getCurrentPage().findCropBox();
-
- if(boundaryBox == null) {
+
+ if (boundaryBox == null) {
boundaryBox = this.getCurrentPage().findMediaBox();
}
-
+
float pageHeight;
switch (this.getCurrentPage().findRotation()) {
@@ -298,7 +306,7 @@ public class PDFPage extends PDFTextStripper {
protected void processTextPosition(TextPosition text) {
showCharacter(text);
}
-
+
// exthex
/**
* A method provided as an event interface to allow a subclass to perform
@@ -314,6 +322,11 @@ public class PDFPage extends PDFTextStripper {
float current_y = text.getY();
final String character = text.getCharacter();
+ if (at.gv.egiz.pdfas.common.utils.StringUtils.whiteSpaceTrim(character)
+ .isEmpty()) {
+ return;
+ }
+
int pageRotation = this.getCurrentPage().findRotation();
// logger_.debug("PageRotation = " + pageRotation);
if (pageRotation == 0) {
@@ -328,15 +341,14 @@ public class PDFPage extends PDFTextStripper {
if (pageRotation == 270) {
current_y = text.getY();
}
-
- if (current_y > this.effectivePageHeight) {
- this.max_character_ypos=this.effectivePageHeight;
+
+ if (current_y > this.effectivePageHeight) {
+ this.max_character_ypos = this.effectivePageHeight;
return;
}
-
+
// store ypos of the char if it is not empty
- if (!at.gv.egiz.pdfas.common.utils.StringUtils.whiteSpaceTrim(character).isEmpty() &&
- current_y > this.max_character_ypos) {
+ if (current_y > this.max_character_ypos) {
this.max_character_ypos = current_y;
}
@@ -359,35 +371,39 @@ public class PDFPage extends PDFTextStripper {
+ ", path=" + maxPathRelatedYPositionFromTop);
}
return NumberUtils.max(max_character_ypos, max_image_ypos,
- maxPathRelatedYPositionFromTop);
+ maxPathRelatedYPositionFromTop);
}
@Override
public Map<String, PDFont> getFonts() {
-
+
COSBase fontObj = null;
-
- if(getCurrentPage().getResources() != null &&
- getCurrentPage().getResources().getCOSDictionary() != null &&
- getCurrentPage().getResources().getCOSDictionary().getDictionaryObject(COSName.FONT) != null) {
- fontObj = getCurrentPage().getResources().getCOSDictionary().getDictionaryObject(COSName.FONT);
+
+ if (getCurrentPage().getResources() != null
+ && getCurrentPage().getResources().getCOSDictionary() != null
+ && getCurrentPage().getResources().getCOSDictionary()
+ .getDictionaryObject(COSName.FONT) != null) {
+ fontObj = getCurrentPage().getResources().getCOSDictionary()
+ .getDictionaryObject(COSName.FONT);
}
- Map<String, PDFont> fontMap = getCurrentPage().findResources().getFonts();
-
- if(fontObj != null) {
- getCurrentPage().getResources().getCOSDictionary().setItem(COSName.FONT, fontObj);
+ Map<String, PDFont> fontMap = getCurrentPage().findResources()
+ .getFonts();
+
+ if (fontObj != null) {
+ getCurrentPage().getResources().getCOSDictionary()
+ .setItem(COSName.FONT, fontObj);
}
-
+
return fontMap;
}
-
+
public class MyInvoke extends OperatorProcessor {
- private PDFPage mypage;
+ private PDFPage mypage;
- public MyInvoke(PDFPage page) {
- this.mypage = page;
- }
+ public MyInvoke(PDFPage page) {
+ this.mypage = page;
+ }
public void process(PDFOperator operator, List<COSBase> arguments)
throws IOException {
@@ -408,7 +424,7 @@ public class PDFPage extends PDFTextStripper {
Matrix ctm = context.getGraphicsState()
.getCurrentTransformationMatrix();
- logger.debug("ctm = " + ctm);
+ logger.debug("ctm = " + ctm);
Pos[] coordinates = new Pos[] { new Pos(0, 0, 1),
new Pos(1, 0, 1), new Pos(0, 1, 1), new Pos(1, 1, 1) };
@@ -430,9 +446,10 @@ public class PDFPage extends PDFTextStripper {
logger.debug("PageRotation = " + pageRotation);
if (pageRotation == 0) {
float min_y = findMinY(transformed_coordinates);
- logger.debug("min_y = " + min_y);
- float page_height = this.mypage.getCurrentPage().findMediaBox().getHeight();
- logger.debug("page_height = " + page_height);
+ logger.debug("min_y = " + min_y);
+ float page_height = this.mypage.getCurrentPage()
+ .findMediaBox().getHeight();
+ logger.debug("page_height = " + page_height);
actual_lowest_point = page_height - min_y;
actual_starting_point = page_height
@@ -440,36 +457,38 @@ public class PDFPage extends PDFTextStripper {
}
if (pageRotation == 90) {
float max_x = findMaxX(transformed_coordinates);
- logger.debug("max_x = " + max_x);
- float page_width = this.mypage.getCurrentPage().findMediaBox().getWidth();
- logger.debug("page_width = " + page_width);
+ logger.debug("max_x = " + max_x);
+ float page_width = this.mypage.getCurrentPage()
+ .findMediaBox().getWidth();
+ logger.debug("page_width = " + page_width);
actual_lowest_point = max_x;
actual_starting_point = findMinX(transformed_coordinates);
}
if (pageRotation == 180) {
float min_y = findMinY(transformed_coordinates);
- logger.debug("min_y = " + min_y);
+ logger.debug("min_y = " + min_y);
actual_lowest_point = findMaxY(transformed_coordinates);
actual_starting_point = actual_lowest_point + min_y;
}
if (pageRotation == 270) {
float min_x = findMinX(transformed_coordinates);
- logger.debug("min_x = " + min_x);
+ logger.debug("min_x = " + min_x);
- float page_width = this.mypage.getCurrentPage().findMediaBox().getWidth();
- logger.debug("page_width = " + page_width);
+ float page_width = this.mypage.getCurrentPage()
+ .findMediaBox().getWidth();
+ logger.debug("page_width = " + page_width);
actual_lowest_point = page_width - min_x;
actual_starting_point = page_width
- findMaxX(transformed_coordinates);
}
- logger.debug("actual_lowest_point = " + actual_lowest_point);
+ logger.debug("actual_lowest_point = " + actual_lowest_point);
if (actual_lowest_point > PDFPage.this.effectivePageHeight
&& actual_starting_point > PDFPage.this.effectivePageHeight) {
- logger.debug("image is below footer_line");
+ logger.debug("image is below footer_line");
return;
}
@@ -511,7 +530,7 @@ public class PDFPage extends PDFTextStripper {
transformed.z = pos.x * m.getValue(0, 2) + pos.y * m.getValue(1, 2)
+ pos.z * m.getValue(2, 2);
- logger.debug(" transformed " + pos + " --> " + transformed);
+ logger.debug(" transformed " + pos + " --> " + transformed);
return transformed;
}
@@ -558,16 +577,16 @@ public class PDFPage extends PDFTextStripper {
public void processAnnotation(PDAnnotation anno) {
float current_y = anno.getRectangle().getLowerLeftY();
PDPage page = anno.getPage();
-
- if(page == null) {
+
+ if (page == null) {
page = getCurrentPage();
}
-
- if(page == null) {
+
+ if (page == null) {
logger.warn("Annotation without page! The position might not be correct!");
return;
}
-
+
int pageRotation = page.findRotation();
// logger_.debug("PageRotation = " + pageRotation);
if (pageRotation == 0) {
@@ -582,7 +601,7 @@ public class PDFPage extends PDFTextStripper {
}
if (pageRotation == 270) {
float page_width = page.findMediaBox().getWidth();
- current_y = page_width - anno.getRectangle().getLowerLeftX() ;
+ current_y = page_width - anno.getRectangle().getLowerLeftX();
}
if (current_y > this.effectivePageHeight) {
@@ -594,5 +613,5 @@ public class PDFPage extends PDFTextStripper {
this.max_character_ypos = current_y;
}
}
-
+
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 05:14:18 +0000