diff options
Diffstat (limited to 'pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java')
| -rw-r--r-- | pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java | 390 |
1 files changed, 188 insertions, 202 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java index c8c2f99f..b6405c2d 100644 --- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java +++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/positioning/Positioning.java @@ -34,210 +34,196 @@ import org.apache.pdfbox.pdmodel.PDPage; import org.apache.pdfbox.pdmodel.common.PDRectangle; /** - * Created with IntelliJ IDEA. - * User: afitzek - * Date: 8/29/13 - * Time: 4:30 PM - * To change this template use File | Settings | File Templates. + * Created with IntelliJ IDEA. User: afitzek Date: 8/29/13 Time: 4:30 PM To + * change this template use File | Settings | File Templates. */ public class Positioning { - /** - * The left/right margin. - */ - public static final float SIGNATURE_MARGIN_HORIZONTAL = 50f; - - /** - * The top/bottom margin. - */ - public static final float SIGNATURE_MARGIN_VERTICAL = 20f; - - /** - * Evalutates absolute positioning and prepares the PositioningInstruction for - * placing the table. - * - * @param pos - * The absolute positioning parameter. If null it is sought in the - * profile definition. - * @param signature_type - * The profile definition of the table to be written. - * @param pdfDataSource - * The pdf. - * @param pdf_table - * The pdf table to be written. - * @return Returns the PositioningInformation. - * @throws PdfAsException - * F.e. - */ - public static PositioningInstruction determineTablePositioning(TablePos pos, String signature_type, - PDDocument pdfDataSource, IPDFVisualObject pdf_table, boolean legacy32) throws PdfAsException - { - return adjustSignatureTableandCalculatePosition(pdfDataSource, pdf_table, pos, legacy32); - } - - /** - * Sets the width of the table according to the layout of the document and - * calculates the y position where the PDFPTable should be placed. - * - * @param pdfDataSource - * The PDF document. - * @param pdf_table - * The PDFPTable to be placed. - * @return Returns the position where the PDFPTable should be placed. - * @throws PdfAsException - * F.e. - */ - public static PositioningInstruction adjustSignatureTableandCalculatePosition(final PDDocument pdfDataSource, - IPDFVisualObject pdf_table, TablePos pos, boolean legacy32) throws PdfAsException - { - - try { - PDFUtils.checkPDFPermissions(pdfDataSource); - // get pages of currentdocument - - int doc_pages = pdfDataSource.getNumberOfPages(); - int page = doc_pages; - boolean make_new_page = pos.isNewPage(); - if (!(pos.isNewPage() || pos.isPauto())) - { - // we should posit signaturtable on this page - - page = pos.getPage(); - // System.out.println("XXXXPAGE="+page+" doc_pages="+doc_pages); - if (page > doc_pages) - { - make_new_page = true; - page = doc_pages; - // throw new PDFDocumentException(227, "Page number is to big(=" + page+ - // ") cannot be parsed."); - } - } - - PDPage pdPage = (PDPage)pdfDataSource.getDocumentCatalog().getAllPages().get(page - 1); - PDRectangle cropBox = pdPage.getCropBox(); - - if(cropBox == null) { - cropBox = pdPage.findCropBox(); - } - - - if(cropBox == null) { - cropBox = pdPage.findMediaBox(); - } - - //TODO: fallback to MediaBox if Cropbox not available! - - // getPagedimensions - //Rectangle psize = reader.getPageSizeWithRotation(page); - //int page_rotation = reader.getPageRotation(page); - - //Integer rotation = pdPage.getRotation(); - //int page_rotation = rotation.intValue(); - - float page_width = cropBox.getWidth(); - float page_height = cropBox.getHeight(); - - // now we can calculate x-position - float pre_pos_x = SIGNATURE_MARGIN_HORIZONTAL; - if (!pos.isXauto()) - { - // we do have absolute x - pre_pos_x = pos.getPosX(); - } - // calculate width - // center - float pre_width = page_width - 2*pre_pos_x; - if (!pos.isWauto()) - { - // we do have absolute width - pre_width = pos.getWidth(); - if (pos.isXauto()) - { // center x - pre_pos_x = (page_width - pre_width) / 2; - } - } - final float pos_x = pre_pos_x; - final float width = pre_width; - // Signatur table dimensions are complete - pdf_table.setWidth(width); - pdf_table.fixWidth(); - //pdf_table.setTotalWidth(width); - //pdf_table.setLockedWidth(true); - - final float table_height = pdf_table.getHeight(); - // now check pos_y - float pos_y = pos.getPosY(); - - // in case an absolute y position is already given OR - // if the table is related to an invisible signature - // there is no need for further calculations - // (fixed adding new page in case of invisible signatures) - if (!pos.isYauto() || table_height == 0) - { - // we do have y-position too --> all parameters but page ok - if (make_new_page) - { - page++; - } - return new PositioningInstruction(make_new_page, page, pos_x, pos_y, pos.rotation); - } - // pos_y is auto - if (make_new_page) - { - // ignore footer in new page - page++; - pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; - return new PositioningInstruction(make_new_page, page, pos_x, pos_y, pos.rotation); - } - // up to here no checks have to be made if Tablesize and Pagesize are fit - // Now we have to getfreespace in page and reguard footerline - float footer_line = pos.getFooterLine(); - float pre_page_length = PDFUtilities.calculatePageLength(pdfDataSource, page - 1, page_height - footer_line, /*page_rotation,*/ legacy32); - if (pre_page_length == Float.NEGATIVE_INFINITY) - { - // we do have an empty page or nothing in area above footerline - pre_page_length = page_height; - // no text --> SIGNATURE_BORDER - pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; - if (pos_y - footer_line <= table_height) - { - make_new_page = true; - if (!pos.isPauto()) - { - // we have to correct pagenumber - page = pdfDataSource.getNumberOfPages(); - } - page++; - // no text --> SIGNATURE_BORDER - pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; - } - return new PositioningInstruction(make_new_page, page, pos_x, pos_y, pos.rotation); - } - final float page_length = pre_page_length; - // we do have text take SIGNATURE_MARGIN - pos_y = page_height - page_length - SIGNATURE_MARGIN_VERTICAL; - if (pos_y - footer_line <= table_height) - { - make_new_page = true; - if (!pos.isPauto()) - { - // we have to correct pagenumber in case of absolute page and not enough - // space - page = pdfDataSource.getNumberOfPages(); - } - page++; - // no text --> SIGNATURE_BORDER - pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; - } - return new PositioningInstruction(make_new_page, page, pos_x, pos_y, pos.rotation); - } finally { - if (pdfDataSource != null) { - try { - pdfDataSource.close(); - } catch (Exception e) { - } - } - } - } + /** + * The left/right margin. + */ + public static final float SIGNATURE_MARGIN_HORIZONTAL = 50f; + + /** + * The top/bottom margin. + */ + public static final float SIGNATURE_MARGIN_VERTICAL = 20f; + + /** + * Evalutates absolute positioning and prepares the PositioningInstruction + * for placing the table. + * + * @param pos + * The absolute positioning parameter. If null it is sought in + * the profile definition. + * @param signature_type + * The profile definition of the table to be written. + * @param pdfDataSource + * The pdf. + * @param pdf_table + * The pdf table to be written. + * @return Returns the PositioningInformation. + * @throws PdfAsException + * F.e. + */ + public static PositioningInstruction determineTablePositioning( + TablePos pos, String signature_type, PDDocument pdfDataSource, + IPDFVisualObject pdf_table, boolean legacy32) throws PdfAsException { + return adjustSignatureTableandCalculatePosition(pdfDataSource, + pdf_table, pos, legacy32); + } + + /** + * Sets the width of the table according to the layout of the document and + * calculates the y position where the PDFPTable should be placed. + * + * @param pdfDataSource + * The PDF document. + * @param pdf_table + * The PDFPTable to be placed. + * @return Returns the position where the PDFPTable should be placed. + * @throws PdfAsException + * F.e. + */ + public static PositioningInstruction adjustSignatureTableandCalculatePosition( + final PDDocument pdfDataSource, IPDFVisualObject pdf_table, + TablePos pos, boolean legacy32) throws PdfAsException { + + PDFUtils.checkPDFPermissions(pdfDataSource); + // get pages of currentdocument + + int doc_pages = pdfDataSource.getNumberOfPages(); + int page = doc_pages; + boolean make_new_page = pos.isNewPage(); + if (!(pos.isNewPage() || pos.isPauto())) { + // we should posit signaturtable on this page + + page = pos.getPage(); + // System.out.println("XXXXPAGE="+page+" doc_pages="+doc_pages); + if (page > doc_pages) { + make_new_page = true; + page = doc_pages; + // throw new PDFDocumentException(227, "Page number is to big(=" + // + page+ + // ") cannot be parsed."); + } + } + + PDPage pdPage = (PDPage) pdfDataSource.getDocumentCatalog() + .getAllPages().get(page - 1); + PDRectangle cropBox = pdPage.getCropBox(); + + if (cropBox == null) { + cropBox = pdPage.findCropBox(); + } + + if (cropBox == null) { + cropBox = pdPage.findMediaBox(); + } + + // TODO: fallback to MediaBox if Cropbox not available! + + // getPagedimensions + // Rectangle psize = reader.getPageSizeWithRotation(page); + // int page_rotation = reader.getPageRotation(page); + + // Integer rotation = pdPage.getRotation(); + // int page_rotation = rotation.intValue(); + + float page_width = cropBox.getWidth(); + float page_height = cropBox.getHeight(); + + // now we can calculate x-position + float pre_pos_x = SIGNATURE_MARGIN_HORIZONTAL; + if (!pos.isXauto()) { + // we do have absolute x + pre_pos_x = pos.getPosX(); + } + // calculate width + // center + float pre_width = page_width - 2 * pre_pos_x; + if (!pos.isWauto()) { + // we do have absolute width + pre_width = pos.getWidth(); + if (pos.isXauto()) { // center x + pre_pos_x = (page_width - pre_width) / 2; + } + } + final float pos_x = pre_pos_x; + final float width = pre_width; + // Signatur table dimensions are complete + pdf_table.setWidth(width); + pdf_table.fixWidth(); + // pdf_table.setTotalWidth(width); + // pdf_table.setLockedWidth(true); + + final float table_height = pdf_table.getHeight(); + // now check pos_y + float pos_y = pos.getPosY(); + + // in case an absolute y position is already given OR + // if the table is related to an invisible signature + // there is no need for further calculations + // (fixed adding new page in case of invisible signatures) + if (!pos.isYauto() || table_height == 0) { + // we do have y-position too --> all parameters but page ok + if (make_new_page) { + page++; + } + return new PositioningInstruction(make_new_page, page, pos_x, + pos_y, pos.rotation); + } + // pos_y is auto + if (make_new_page) { + // ignore footer in new page + page++; + pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; + return new PositioningInstruction(make_new_page, page, pos_x, + pos_y, pos.rotation); + } + // up to here no checks have to be made if Tablesize and Pagesize are + // fit + // Now we have to getfreespace in page and reguard footerline + float footer_line = pos.getFooterLine(); + float pre_page_length = PDFUtilities.calculatePageLength(pdfDataSource, + page - 1, page_height - footer_line, /* page_rotation, */ + legacy32); + if (pre_page_length == Float.NEGATIVE_INFINITY) { + // we do have an empty page or nothing in area above footerline + pre_page_length = page_height; + // no text --> SIGNATURE_BORDER + pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; + if (pos_y - footer_line <= table_height) { + make_new_page = true; + if (!pos.isPauto()) { + // we have to correct pagenumber + page = pdfDataSource.getNumberOfPages(); + } + page++; + // no text --> SIGNATURE_BORDER + pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; + } + return new PositioningInstruction(make_new_page, page, pos_x, + pos_y, pos.rotation); + } + final float page_length = pre_page_length; + // we do have text take SIGNATURE_MARGIN + pos_y = page_height - page_length - SIGNATURE_MARGIN_VERTICAL; + if (pos_y - footer_line <= table_height) { + make_new_page = true; + if (!pos.isPauto()) { + // we have to correct pagenumber in case of absolute page and + // not enough + // space + page = pdfDataSource.getNumberOfPages(); + } + page++; + // no text --> SIGNATURE_BORDER + pos_y = page_height - SIGNATURE_MARGIN_VERTICAL; + } + return new PositioningInstruction(make_new_page, page, pos_x, pos_y, + pos.rotation); + + } } |