javier/Stirling-PDF
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add Odd-Even Merge operation mode (#1445)

Browse Source 
* Add ODD_EVEN_MERGE sort type

* Add process method to merge odd and even PDF pages

* Add test cases for Odd-Even merge method

* Add Odd-Even Merge mode in PDF Organizer webpage

This also add a new translatable text message variable pdfOrganiser.mode.10 with translation for english and german

* Add ODD_EVEN_MERGE documentation to RearrangePagesRequest

* Add english translation for pdfOrganiser.mode.10

---------

Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
This commit is contained in:
Sebastian Espei
2024-06-12 23:21:02 +02:00
committed by GitHub
parent eccebd265f
commit f60a8d87d2
8 changed files with 112 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/main/java/stirling/software/SPDF/controller/api/RearrangePagesPDFController.java
View File

@@ -145,6 +145,28 @@ public class RearrangePagesPDFController {
return newPageOrder;
}
/**
* Rearrange pages in a PDF file by merging odd and even pages. The first half of the pages will
* be the odd pages, and the second half will be the even pages as input. <br>
* This method is visible for testing purposes only.
*
* @param totalPages Total number of pages in the PDF file.
* @return List of page numbers in the new order. The first page is 0.
*/
List<Integer> oddEvenMerge(int totalPages) {
List<Integer> newPageOrderZeroBased = new ArrayList<>();
int numberOfOddPages = (totalPages + 1) / 2;
for (int oneBasedIndex = 1; oneBasedIndex < (numberOfOddPages + 1); oneBasedIndex++) {
newPageOrderZeroBased.add((oneBasedIndex - 1));
if (numberOfOddPages + oneBasedIndex <= totalPages) {
newPageOrderZeroBased.add((numberOfOddPages + oneBasedIndex - 1));
}
}
return newPageOrderZeroBased;
}
private List<Integer> processSortTypes(String sortTypes, int totalPages) {
try {
SortTypes mode = SortTypes.valueOf(sortTypes.toUpperCase());
@@ -159,6 +181,8 @@ public class RearrangePagesPDFController {
return sideStitchBooklet(totalPages);
case ODD_EVEN_SPLIT:
return oddEvenSplit(totalPages);
case ODD_EVEN_MERGE:
return oddEvenMerge(totalPages);
case REMOVE_FIRST:
return removeFirst(totalPages);
case REMOVE_LAST: