diff options
| -rw-r--r-- | pdf/pdfium/pdfium_engine.cc | 111 | ||||
| -rw-r--r-- | pdf/pdfium/pdfium_engine.h | 8 |
2 files changed, 73 insertions, 46 deletions
diff --git a/pdf/pdfium/pdfium_engine.cc b/pdf/pdfium/pdfium_engine.cc index 606180a..83c83f4 100644 --- a/pdf/pdfium/pdfium_engine.cc +++ b/pdf/pdfium/pdfium_engine.cc @@ -982,6 +982,66 @@ pp::Resource PDFiumEngine::PrintPages( return pp::Resource(); } +FPDF_DOCUMENT PDFiumEngine::CreateSinglePageRasterPdf( + double source_page_width, + double source_page_height, + const PP_PrintSettings_Dev& print_settings, + PDFiumPage* page_to_print) { + FPDF_DOCUMENT temp_doc = FPDF_CreateNewDocument(); + if (!temp_doc) + return temp_doc; + + const pp::Size& bitmap_size(page_to_print->rect().size()); + + FPDF_PAGE temp_page = + FPDFPage_New(temp_doc, 0, source_page_width, source_page_height); + + pp::ImageData image = pp::ImageData(client_->GetPluginInstance(), + PP_IMAGEDATAFORMAT_BGRA_PREMUL, + bitmap_size, + false); + + FPDF_BITMAP bitmap = FPDFBitmap_CreateEx(bitmap_size.width(), + bitmap_size.height(), + FPDFBitmap_BGRx, + image.data(), + image.stride()); + + // Clear the bitmap + FPDFBitmap_FillRect( + bitmap, 0, 0, bitmap_size.width(), bitmap_size.height(), 0xFFFFFFFF); + + pp::Rect page_rect = page_to_print->rect(); + FPDF_RenderPageBitmap(bitmap, + page_to_print->GetPrintPage(), + page_rect.x(), + page_rect.y(), + page_rect.width(), + page_rect.height(), + print_settings.orientation, + FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH); + + double ratio_x = (static_cast<double>(bitmap_size.width()) * kPointsPerInch) / + print_settings.dpi; + double ratio_y = + (static_cast<double>(bitmap_size.height()) * kPointsPerInch) / + print_settings.dpi; + + // Add the bitmap to an image object and add the image object to the output + // page. + FPDF_PAGEOBJECT temp_img = FPDFPageObj_NewImgeObj(temp_doc); + FPDFImageObj_SetBitmap(&temp_page, 1, temp_img, bitmap); + FPDFImageObj_SetMatrix(temp_img, ratio_x, 0, 0, ratio_y, 0, 0); + FPDFPage_InsertObject(temp_page, temp_img); + FPDFPage_GenerateContent(temp_page); + FPDF_ClosePage(temp_page); + + page_to_print->ClosePrintPage(); + FPDFBitmap_Destroy(bitmap); + + return temp_doc; +} + pp::Buffer_Dev PDFiumEngine::PrintPagesAsRasterPDF( const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count, const PP_PrintSettings_Dev& print_settings) { @@ -1032,62 +1092,21 @@ pp::Buffer_Dev PDFiumEngine::PrintPagesAsRasterPDF( for (; i < pages_to_print.size(); ++i) { double source_page_width = source_page_sizes[i].first; double source_page_height = source_page_sizes[i].second; - const pp::Size& bitmap_size(pages_to_print[i].rect().size()); // Use temp_doc to compress image by saving PDF to buffer. - FPDF_DOCUMENT temp_doc = FPDF_CreateNewDocument(); + FPDF_DOCUMENT temp_doc = CreateSinglePageRasterPdf(source_page_width, + source_page_height, + print_settings, + &pages_to_print[i]); + if (!temp_doc) break; - FPDF_PAGE output_page = FPDFPage_New(temp_doc, 0, source_page_width, - source_page_height); - - pp::ImageData image = pp::ImageData(client_->GetPluginInstance(), - PP_IMAGEDATAFORMAT_BGRA_PREMUL, - bitmap_size, - false); - - FPDF_BITMAP bitmap = FPDFBitmap_CreateEx(bitmap_size.width(), - bitmap_size.height(), - FPDFBitmap_BGRx, - image.data(), - image.stride()); - - // Clear the bitmap - FPDFBitmap_FillRect(bitmap, 0, 0, bitmap_size.width(), - bitmap_size.height(), 0xFFFFFFFF); - - pp::Rect page_rect = pages_to_print[i].rect(); - FPDF_RenderPageBitmap(bitmap, pages_to_print[i].GetPrintPage(), - page_rect.x(), page_rect.y(), - page_rect.width(), page_rect.height(), - print_settings.orientation, - FPDF_ANNOT | FPDF_PRINTING | FPDF_NO_CATCH); - - double ratio_x = (static_cast<double>(bitmap_size.width()) * - kPointsPerInch) / print_settings.dpi; - double ratio_y = (static_cast<double>(bitmap_size.height()) * - kPointsPerInch) / print_settings.dpi; - - // Add the bitmap to an image object and add the image object to the output - // page. - FPDF_PAGEOBJECT img_obj = FPDFPageObj_NewImgeObj(output_doc); - FPDFImageObj_SetBitmap(&output_page, 1, img_obj, bitmap); - FPDFImageObj_SetMatrix(img_obj, ratio_x, 0, 0, ratio_y, 0, 0); - FPDFPage_InsertObject(output_page, img_obj); - FPDFPage_GenerateContent(output_page); - FPDF_ClosePage(output_page); - - pages_to_print[i].ClosePrintPage(); - FPDFBitmap_Destroy(bitmap); - pp::Buffer_Dev buffer = GetFlattenedPrintData(temp_doc); FPDF_CloseDocument(temp_doc); PDFiumMemBufferFileRead file_read(buffer.data(), buffer.size()); temp_doc = FPDF_LoadCustomDocument(&file_read, NULL); - if (!temp_doc) - break; FPDF_BOOL imported = FPDF_ImportPages(output_doc, temp_doc, "1", i); FPDF_CloseDocument(temp_doc); diff --git a/pdf/pdfium/pdfium_engine.h b/pdf/pdfium/pdfium_engine.h index 6118470..a320ba1 100644 --- a/pdf/pdfium/pdfium_engine.h +++ b/pdf/pdfium/pdfium_engine.h @@ -236,13 +236,21 @@ class PDFiumEngine : public PDFEngine, bool OnKeyUp(const pp::KeyboardInputEvent& event); bool OnChar(const pp::KeyboardInputEvent& event); + FPDF_DOCUMENT CreateSinglePageRasterPdf( + double source_page_width, + double source_page_height, + const PP_PrintSettings_Dev& print_settings, + PDFiumPage* page_to_print); + pp::Buffer_Dev PrintPagesAsRasterPDF( const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count, const PP_PrintSettings_Dev& print_settings); + pp::Buffer_Dev PrintPagesAsPDF(const PP_PrintPageNumberRange_Dev* page_ranges, uint32_t page_range_count, const PP_PrintSettings_Dev& print_settings); + pp::Buffer_Dev GetFlattenedPrintData(const FPDF_DOCUMENT& doc); void FitContentsToPrintableAreaIfRequired( const FPDF_DOCUMENT& doc, |