Hi,
> [email protected] hat am 26. August 2014 um 10:56 geschrieben: > > > Hi, > > I understand that PDFToImage currently doesn't support drawing > vertical text like Identity-V encoding. But I had to use it, > so I tried to let it work with modification as show below. > > Even though I don't know whether this code is proper or not, I > could make image files with vertical text PDF file. > > I'm happy if this information is something useful. Of course, looks interesting. Can you provide us with a sample pdf? Please create an issue on JIRA [1] and attach both the patch and the sample pdf to it. > Regards, > tani BR Andreas Lehmkühler [1] https://issues.apache.org/jira/browse/PDFBOX > > diff --git a/pdfbox/src/main/java/org/apache/pdfbox/util/PDFStreamEngine.java > b/pdfbox/src/main/java/org/apache/pdfbox/util/PDFStreamEngine.java > index ec1ed4a..0aae1b7 100644 > --- a/pdfbox/src/main/java/org/apache/pdfbox/util/PDFStreamEngine.java > +++ b/pdfbox/src/main/java/org/apache/pdfbox/util/PDFStreamEngine.java > @@ -330,7 +330,16 @@ public class PDFStreamEngine > Matrix adjMatrix = new Matrix(); > adjustment =- (adjustment / 1000) * horizontalScaling * fontsize; > // TODO vertical writing mode > - adjMatrix.setValue( 2, 0, adjustment ); > + // > + // TODO: This is workaround for vertical writing mode by tani. > + // Check pdfbox official improvement. > + // > + if (getGraphicsState().getTextState().getFont().getCMap() != null > + && > getGraphicsState().getTextState().getFont().getCMap().getWMode() == 1) { > + adjMatrix.setValue( 2, 1, adjustment ); // Adjust only Y > axis. > + } else { > + adjMatrix.setValue( 2, 0, adjustment ); > + } > showAdjustedTextRun(strings.get(i), adjMatrix); > } > } > @@ -472,9 +481,18 @@ public class PDFStreamEngine > float ty = 0; > // reset the matrix instead of creating a new one > td.reset(); > - td.setValue(2, 0, tx); > - td.setValue(2, 1, ty); > - > + // > + // TODO: This is workaround for vertical writing mode by tani. > + // Check pdfbox official improvement. > + // > + if (getGraphicsState().getTextState().getFont().getCMap() != null > + && > getGraphicsState().getTextState().getFont().getCMap().getWMode() == 1) { > + td.setValue(2, 1, -tx); // Adjust only Y axis. > + } else { > + td.setValue(2, 0, tx); > + td.setValue(2, 1, ty); > + } > + > // The text matrix gets updated after each glyph is placed. The >updated > // version will have the X and Y coordinates for the next glyph. > // textMatrixEnd contains the coordinates of the end of the last >glyph without > @@ -488,7 +506,16 @@ public class PDFStreamEngine > // add some spacing to the text matrix (see comment above) > tx = (charHorizontalDisplacementText * fontSizeText + >characterSpacingText + > spacingText) * horizontalScalingText; > - td.setValue(2, 0, tx); > + // > + // TODO: This is workaround for vertical writing mode by tani. > + // Check pdfbox official improvement. > + // > + if (getGraphicsState().getTextState().getFont().getCMap() != null > + && > getGraphicsState().getTextState().getFont().getCMap().getWMode() == 1) { > + td.setValue(2, 1, -tx); // Adjust only Y axis. > + } else { > + td.setValue(2, 0, tx); > + } > td.multiply(textMatrix, textMatrix); > > // determine the width of this character > > -- > >
