RIP podofo

experimental/PdfViewer/pdfparser/podofo/SkPodofoParsedPDF.cpp

-#include "SkPodofoParsedPDF.h"
-
-#include "SkPdfPodofoTokenizer.h"
-#include "SkPdfHeaders_autogen.h"
-#include "SkPdfMapper_autogen.h"
-#include "SkPdfBasics.h"
-#include "SkPdfParser.h"
-
-#include "podofo.h"
-
-SkPodofoParsedPDF::SkPodofoParsedPDF(const char* path) : fDoc(new PoDoFo::PdfMemDocument(path))
-                                                       , fMapper(new SkPdfMapper(this)) {}
-
-SkPodofoParsedPDF::~SkPodofoParsedPDF() {
-    delete fDoc;
-    delete fMapper;
-}
-
-int SkPodofoParsedPDF::pages() const {
-    return fDoc->GetPageCount();
-}
-
-double SkPodofoParsedPDF::width(int page) const {
-    PoDoFo::PdfRect rect = fDoc->GetPage(page)->GetMediaBox();
-    return rect.GetWidth() + rect.GetLeft();
-}
-
-double SkPodofoParsedPDF::height(int page) const {
-    PoDoFo::PdfRect rect = fDoc->GetPage(page)->GetMediaBox();
-    return rect.GetHeight() + rect.GetBottom();
-}
-
-const SkPdfResourceDictionary* SkPodofoParsedPDF::pageResources(int page) const {
-    SkPdfPageObjectDictionary* pg = NULL;
-    SkPdfObject* obj = make(fDoc->GetPage(page)->GetObject());
-    fMapper->mapPageObjectDictionary(obj, &pg);
-    return pg ? pg->Resources() : NULL;
-}
-
-SkRect SkPodofoParsedPDF::MediaBox(int page) const {
-    PoDoFo::PdfRect rect = fDoc->GetPage(page)->GetMediaBox();
-    SkRect skrect = SkRect::MakeLTRB(SkDoubleToScalar(rect.GetLeft()),
-                                     SkDoubleToScalar(rect.GetBottom()),
-                                     SkDoubleToScalar(rect.GetLeft() + rect.GetWidth()),
-                                     SkDoubleToScalar(rect.GetBottom() + rect.GetHeight()));
-    return skrect;
-}
-
-
-SkPdfPodofoTokenizer* SkPodofoParsedPDF::tokenizerOfPage(int page) const {
-    PoDoFo::PdfContentsTokenizer* t = new PoDoFo::PdfContentsTokenizer(fDoc->GetPage(page));
-    return new SkPdfPodofoTokenizer(this, t);
-}
-
-SkPdfPodofoTokenizer* SkPodofoParsedPDF::tokenizerOfStream(const SkPdfStream* stream) const {
-    if (stream == NULL) {
-        return NULL;
-    }
-
-    char* buffer = NULL;
-    long len = 0;
-    stream->GetFilteredCopy(&buffer, &len);
-    return tokenizerOfBuffer(buffer, len);
-}
-
-SkPdfPodofoTokenizer* SkPodofoParsedPDF::tokenizerOfBuffer(char* buffer, size_t len) const {
-    PoDoFo::PdfContentsTokenizer* t = new PoDoFo::PdfContentsTokenizer(buffer, len);
-    return new SkPdfPodofoTokenizer(this, t);
-}
-
-size_t SkPodofoParsedPDF::objects() const {
-    return fDoc->GetObjects().GetSize();
-}
-
-const SkPdfObject* SkPodofoParsedPDF::object(int i) const {
-    PoDoFo::PdfVecObjects& objects = (PoDoFo::PdfVecObjects&)fDoc->GetObjects();
-    return make(objects[i]);
-}
-
-SkPdfObject* SkPodofoParsedPDF::make(PoDoFo::PdfObject* obj) const {
-    return new SkPdfObject(this, obj);
-}
-
-const SkPdfObject* SkPodofoParsedPDF::make(const PoDoFo::PdfObject* obj) const {
-    return new SkPdfObject(this, obj);
-}
-
-const SkPdfMapper* SkPodofoParsedPDF::mapper() const {
-    return fMapper;
-}
-
-SkPdfNumber* SkPodofoParsedPDF::createNumber(double number) const {
-    return new SkPdfNumber(this, new PoDoFo::PdfObject(PoDoFo::PdfVariant(number)));
-}
-
-SkPdfInteger* SkPodofoParsedPDF::createInteger(int value) const {
-    return new SkPdfInteger(this, new PoDoFo::PdfObject(PoDoFo::PdfVariant((PoDoFo::pdf_int64)value)));
-}
-
-SkPdfString* SkPodofoParsedPDF::createString(char* sz, size_t len) const {
-    // TODO(edisonn): NYI
-    return NULL;
-}
-
-PdfContext* gPdfContext = NULL;
-
-void SkPodofoParsedPDF::drawPage(int page, SkCanvas* canvas) const {
-    SkPdfPodofoTokenizer* tokenizer = tokenizerOfPage(page);
-
-    PdfContext pdfContext(this);
-    pdfContext.fOriginalMatrix = SkMatrix::I();
-    pdfContext.fGraphicsState.fResources = pageResources(page);
-
-    gPdfContext = &pdfContext;
-
-    // TODO(edisonn): get matrix stuff right.
-    // TODO(edisonn): add DPI/scale/zoom.
-    SkScalar z = SkIntToScalar(0);
-    SkRect rect = MediaBox(page);
-    SkScalar w = rect.width();
-    SkScalar h = rect.height();
-
-    SkPoint pdfSpace[4] = {SkPoint::Make(z, z), SkPoint::Make(w, z), SkPoint::Make(w, h), SkPoint::Make(z, h)};
-//                SkPoint skiaSpace[4] = {SkPoint::Make(z, h), SkPoint::Make(w, h), SkPoint::Make(w, z), SkPoint::Make(z, z)};
-
-    // TODO(edisonn): add flag for this app to create sourunding buffer zone
-    // TODO(edisonn): add flagg for no clipping.
-    // Use larger image to make sure we do not draw anything outside of page
-    // could be used in tests.
-
-#ifdef PDF_DEBUG_3X
-    SkPoint skiaSpace[4] = {SkPoint::Make(w+z, h+h), SkPoint::Make(w+w, h+h), SkPoint::Make(w+w, h+z), SkPoint::Make(w+z, h+z)};
-#else
-    SkPoint skiaSpace[4] = {SkPoint::Make(z, h), SkPoint::Make(w, h), SkPoint::Make(w, z), SkPoint::Make(z, z)};
-#endif
-    //SkPoint pdfSpace[2] = {SkPoint::Make(z, z), SkPoint::Make(w, h)};
-    //SkPoint skiaSpace[2] = {SkPoint::Make(w, z), SkPoint::Make(z, h)};
-
-    //SkPoint pdfSpace[2] = {SkPoint::Make(z, z), SkPoint::Make(z, h)};
-    //SkPoint skiaSpace[2] = {SkPoint::Make(z, h), SkPoint::Make(z, z)};
-
-    //SkPoint pdfSpace[3] = {SkPoint::Make(z, z), SkPoint::Make(z, h), SkPoint::Make(w, h)};
-    //SkPoint skiaSpace[3] = {SkPoint::Make(z, h), SkPoint::Make(z, z), SkPoint::Make(w, 0)};
-
-    SkAssertResult(pdfContext.fOriginalMatrix.setPolyToPoly(pdfSpace, skiaSpace, 4));
-    SkTraceMatrix(pdfContext.fOriginalMatrix, "Original matrix");
-
-
-    pdfContext.fGraphicsState.fMatrix = pdfContext.fOriginalMatrix;
-    pdfContext.fGraphicsState.fMatrixTm = pdfContext.fGraphicsState.fMatrix;
-    pdfContext.fGraphicsState.fMatrixTlm = pdfContext.fGraphicsState.fMatrix;
-
-    canvas->setMatrix(pdfContext.fOriginalMatrix);
-
-#ifndef PDF_DEBUG_NO_PAGE_CLIPING
-    canvas->clipRect(SkRect::MakeXYWH(z, z, w, h), SkRegion::kIntersect_Op, true);
-#endif
-
-// erase with red before?
-//        SkPaint paint;
-//        paint.setColor(SK_ColorRED);
-//        canvas->drawRect(rect, paint);
-
-    PdfMainLooper looper(NULL, tokenizer, &pdfContext, canvas);
-    looper.loop();
-
-    delete tokenizer;
-
-    canvas->flush();
-}
-
-// TODO(edisonn): move in trace util.
-#include "SkMatrix.h"
-#include "SkRect.h"
-
-#ifdef PDF_TRACE
-void SkTraceMatrix(const SkMatrix& matrix, const char* sz) {
-    printf("SkMatrix %s ", sz);
-    for (int i = 0 ; i < 9 ; i++) {
-        printf("%f ", SkScalarToDouble(matrix.get(i)));
-    }
-    printf("\n");
-}
-
-void SkTraceRect(const SkRect& rect, const char* sz) {
-    printf("SkRect %s ", sz);
-    printf("x = %f ", SkScalarToDouble(rect.x()));
-    printf("y = %f ", SkScalarToDouble(rect.y()));
-    printf("w = %f ", SkScalarToDouble(rect.width()));
-    printf("h = %f ", SkScalarToDouble(rect.height()));
-    printf("\n");
-}
-#endif