New Feature: extract coordinates of matched text #1442
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… for Type0 fonts, method `getWidth` in `DocumentFont.java` failed to match character in the `metrics` map (char was not properly decoded). Using method `ParsedText.getWidth` instead of `ParsedText.getUnscaledTextWidth` when adjusting the `textMatrix` in `displayPdfString` to avoid unnecessary calculations.
…ic implementation in each class, so that `ContentOperator` is more flexible to use. Implemented a new `PdfContentStreamHandler`:`PdfContentTextLocator` to find and locate the coordinates of a matched regex in the text of a page (basic logic searching inside a `PdfString`, could be extended to group `PdfString` in the same line).
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Description of the new Feature
Refactored
PdfContentStreamHandlerto abstract class so thatContentOperatorinterface is more flexible to use.Implemented a new
PdfContentStreamHandler:PdfContentTextLocatorto find and locate the bounding box coordinates of a matched regex text inside a page.Basic implementation logic searches inside a
PdfStringand uses each glyph to properly calculate the width.Possible improvement
Use the same logic provided in
renderTextto search across multiplePdfStringin the same line, even though i'm skeptical about the possible unwanted behaviours, given that we are doing a string matching on a printable format.E.g. two
PdfStringcould be on the same line but of two different paragraphs or inserted in a different order, like in the pdf document attached below.example_file.pdf
Your real name
Alessandro Ragusi