Initial commit of native poppler-based PDF import.

(bzr r3230)

1 files changed, 139 insertions, 0 deletions

diff --git a/src/extension/internal/pdfinput/pdf-input.cpp b/src/extension/internal/pdfinput/pdf-input.cpp
new file mode 100644
index 000000000..b9e616025
--- /dev/null
+++ b/src/extension/internal/pdfinput/pdf-input.cpp
@@ -0,0 +1,139 @@
+ /** \file
+ * Native PDF import using libpoppler.
+ * 
+ * Authors:
+ *   miklos erdelyi
+ *
+ * Copyright (C) 2007 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_POPPLER
+
+#include "goo/GooString.h"
+#include "ErrorCodes.h"
+#include "GlobalParams.h"
+#include "PDFDoc.h"
+#include "Page.h"
+#include "Catalog.h"
+
+#include "pdf-input.h"
+#include "extension/system.h"
+#include "extension/input.h"
+#include "svg-builder.h"
+#include "pdf-parser.h"
+
+#include "document-private.h"
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+/**
+ * Parses the first page of the given PDF document using PdfParser.
+ */
+SPDocument *
+PdfInput::open(::Inkscape::Extension::Input * mod, const gchar * uri) {
+
+    // Initialize the globalParams variable for poppler
+    if (!globalParams) {
+        globalParams = new GlobalParams();
+        g_message("Created globalParams");
+    }
+    GooString *filename_goo = new GooString(uri);
+    PDFDoc *pdf_doc = new PDFDoc(filename_goo, NULL, NULL, NULL);   // TODO: Could ask for password
+    if (!pdf_doc->isOk()) {
+        int error = pdf_doc->getErrorCode();
+        delete pdf_doc;
+        if (error == errEncrypted) {
+            g_message("Document is encrypted.");
+        } else {
+            g_message("Failed to load document from data (error %d)", error);
+        }
+ 
+        return NULL;
+    }
+
+    // Get needed page
+    int page_num = 1;
+    Catalog *catalog = pdf_doc->getCatalog();
+    Page *page = catalog->getPage(page_num);
+
+    double width, height;
+    int rotate = page->getRotate();
+    if (rotate == 90 || rotate == 270)  {
+        width = page->getCropHeight();
+        height = page->getCropWidth();
+    } else {
+        width = page->getCropWidth();
+        height = page->getCropHeight();
+    }
+    
+    SPDocument *doc = sp_document_new(NULL, TRUE, TRUE);
+    bool saved = sp_document_get_undo_sensitive(doc);
+    sp_document_set_undo_sensitive(doc, false); // No need to undo in this temporary document
+
+    // Create builder and parser
+    SvgBuilder *builder = new SvgBuilder(doc);
+    PdfParser *pdf_parser = new PdfParser(pdf_doc->getXRef(), builder, page_num-1,
+                                          page->getResourceDict(), page->getCropBox());
+
+    // Parse the document structure
+    Object obj;
+    page->getContents(&obj);
+    if (!obj.isNull()) {
+        pdf_parser->saveState();
+        pdf_parser->parse(&obj);
+        pdf_parser->restoreState();
+    }
+    
+    // Cleanup
+    obj.free();
+    delete pdf_parser;
+    delete builder;
+
+    // Restore undo
+    sp_document_set_undo_sensitive(doc, saved);
+
+    return doc;
+}
+
+#include "../clear-n_.h"
+
+void
+PdfInput::init(void) {
+    Inkscape::Extension::Extension * ext;
+
+    ext = Inkscape::Extension::build_from_mem(
+        "<inkscape-extension>\n"
+            "<name>PDF Input</name>\n"
+            "<id>org.inkscape.input.pdf</id>\n"
+            "<input>\n"
+                "<extension>.pdf</extension>\n"
+                "<mimetype>application/pdf</mimetype>\n"
+                "<filetypename>Adobe PDF (*.pdf) [native]</filetypename>\n"
+                "<filetypetooltip>PDF Document</filetypetooltip>\n"
+            "</input>\n"
+        "</inkscape-extension>", new PdfInput());
+} // init
+
+} } }  /* namespace Inkscape, Extension, Implementation */
+
+#endif /* HAVE_POPPLER */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :