pdfshow::pdfshow(QWidget *parent) : QWidget(parent) { //get instance of current program (self) HINSTANCE hInst= GetModuleHandle (0); FPDF_InitLibrary(hInst); setAttribute(Qt::WA_PaintOnScreen,true); // 首先,加载文档(没有指定的密码) pdf_doc = FPDF_LoadDocument("./manual/usermanual.pdf", NULL); if (pdf_doc == NULL)// error handling { printf("加载pdf文档错误\n"); } // 现在加载首页(页面索引为0) pdf_page = FPDF_LoadPage(pdf_doc, 0); iPageNum = FPDF_GetPageCount(pdf_doc); if (pdf_page == NULL) { printf("加载pdf页面错误\n"); } page_width = FPDF_GetPageWidth(pdf_page); page_height = FPDF_GetPageHeight(pdf_page); FPDF_ClosePage(pdf_page); }
FPDF_BITMAP EmbedderTest::RenderPage(FPDF_PAGE page) { int width = static_cast<int>(FPDF_GetPageWidth(page)); int height = static_cast<int>(FPDF_GetPageHeight(page)); FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0); FPDF_FFLDraw(form_handle_, bitmap, page, 0, 0, width, height, 0, 0); return bitmap; }
TEST_F(FPDFViewEmbeddertest, Page) { EXPECT_TRUE(OpenDocument("about_blank.pdf")); FPDF_PAGE page = LoadPage(0); EXPECT_NE(nullptr, page); EXPECT_EQ(612.0, FPDF_GetPageWidth(page)); EXPECT_EQ(792.0, FPDF_GetPageHeight(page)); UnloadPage(page); EXPECT_EQ(nullptr, LoadPage(1)); }
FPDF_BITMAP EmbedderTest::RenderPage(FPDF_PAGE page) { int width = static_cast<int>(FPDF_GetPageWidth(page)); int height = static_cast<int>(FPDF_GetPageHeight(page)); int alpha = FPDFPage_HasTransparency(page) ? 1 : 0; FPDF_BITMAP bitmap = FPDFBitmap_Create(width, height, alpha); FPDF_DWORD fill_color = alpha ? 0x00000000 : 0xFFFFFFFF; FPDFBitmap_FillRect(bitmap, 0, 0, width, height, fill_color); FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, 0, 0); FPDF_FFLDraw(form_handle_, bitmap, page, 0, 0, width, height, 0, 0); return bitmap; }
TEST_F(FPDFViewEmbeddertest, FPDF_RenderPageBitmapWithMatrix) { const char kAllBlackMd5sum[] = "5708fc5c4a8bd0abde99c8e8f0390615"; const char kTopLeftQuarterBlackMd5sum[] = "24e4d1ec06fa0258af758cfc8b2ad50a"; EXPECT_TRUE(OpenDocument("black.pdf")); FPDF_PAGE page = LoadPage(0); EXPECT_NE(nullptr, page); const int width = static_cast<int>(FPDF_GetPageWidth(page)); const int height = static_cast<int>(FPDF_GetPageHeight(page)); EXPECT_EQ(612, width); EXPECT_EQ(792, height); FPDF_BITMAP bitmap = RenderPage(page); CompareBitmap(bitmap, width, height, kAllBlackMd5sum); FPDFBitmap_Destroy(bitmap); // Try rendering with an identity matrix. The output should be the same as // the RenderPage() output. FS_MATRIX matrix; matrix.a = 1; matrix.b = 0; matrix.c = 0; matrix.d = 1; matrix.e = 0; matrix.f = 0; FS_RECTF rect; rect.left = 0; rect.top = 0; rect.right = width; rect.bottom = height; bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); CompareBitmap(bitmap, width, height, kAllBlackMd5sum); FPDFBitmap_Destroy(bitmap); // Now render again with the image scaled. matrix.a = 0.5; matrix.d = 0.5; bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); CompareBitmap(bitmap, width, height, kTopLeftQuarterBlackMd5sum); FPDFBitmap_Destroy(bitmap); UnloadPage(page); }
int _tmain(int argc, _TCHAR* argv[]) { // Before we can do anything, we need to unlock the DLL // NOTE: If you are evaluating FOXIT READER SDK, you don’t need unlock the DLL, // then evaluation marks will be shown with all rendered pages. FPDF_UnlockDLL("license_id", "unlock_code"); // first, load the document (no password specified) pdf_doc = FPDF_LoadDocument("testdoc.pdf", NULL); // error handling if (pdf_doc == NULL) { fprintf(stderr, "ERROR - doc\n"); exit(1); } // Open the out file fopen_s(&out, "test.spl", "wb"); // Send the StartDoc header wchar_t* dname = L"desktop.ini - Editor"; wchar_t* prn = L"c:\\output.prn"; { if (wcsnlen(dname, 255) == 255) ErrorExit(L"dname too long"); if (wcsnlen(prn, 255) == 255) ErrorExit(L"prn too long"); SPL_HEADER spl; spl.SIGNATURE=SPLMETA_SIGNATURE; spl.nSize=(DWORD)sizeof(spl)+wcslen(dname)*2+wcslen(prn)*2+4; // +4, because \0\0 is after dname and prn spl.offDocumentName=(DWORD)sizeof(spl); spl.offPort=(DWORD)sizeof(spl)+wcslen(dname)*2+2; // +2 because \0\0 is after dname fwrite(&spl, sizeof(spl), 1, out); fwrite(dname, wcslen(dname)*2, 1, out); fwrite("\0\0", 2, 1, out); fwrite(prn, wcslen(prn)*2, 1, out); fwrite("\0\0", 2, 1, out); } // Load the first page and calculate the bbox // based on the printer margins pdf_page = FPDF_LoadPage(pdf_doc, 0); if (pdf_page == NULL) ErrorExit(L"FPDF_LoadPage"); double page_width, page_height; page_width = FPDF_GetPageWidth(pdf_page); page_height = FPDF_GetPageHeight(pdf_page); #ifdef EXT_PRINT #ifdef EXT_PRNDLG PRINTDLG pd; HWND hwnd = NULL; // Initialize PRINTDLG ZeroMemory(&pd, sizeof(pd)); pd.lStructSize = sizeof(pd); pd.hwndOwner = hwnd; pd.hDevMode = NULL; // Don't forget to free or store hDevMode pd.hDevNames = NULL; // Don't forget to free or store hDevNames pd.Flags = PD_USEDEVMODECOPIESANDCOLLATE | PD_RETURNDC; pd.nCopies = 1; pd.nFromPage = 0xFFFF; pd.nToPage = 0xFFFF; pd.nMinPage = 1; pd.nMaxPage = 0xFFFF; if (PrintDlg(&pd) != TRUE) ErrorExit(L"PrintDialog\n"); hDC = pd.hDC; #else wchar_t* printer=L"FF"; if (!OpenPrinter(printer, &hPrinter, NULL)) ErrorExit(L"OpenPrinter\n"); DWORD dwNeeded = DocumentProperties(NULL, hPrinter, printer, NULL, NULL, 0); lpDevMode = (LPDEVMODE)malloc(dwNeeded); DocumentProperties(NULL, hPrinter, printer, lpDevMode, NULL, DM_OUT_BUFFER); /* Try to set a higher print quality */ lpDevMode->dmPrintQuality=1200; lpDevMode->dmFields|=DM_PRINTQUALITY; DocumentProperties(NULL, hPrinter, printer, lpDevMode, lpDevMode, DM_IN_BUFFER | DM_OUT_BUFFER); #ifdef EXT_PRNOPTS DocumentProperties(NULL, hPrinter, printer, lpDevMode, lpDevMode, DM_IN_BUFFER | DM_PROMPT | DM_OUT_BUFFER); #endif hDC = CreateDC(L"WINEPS.DRV", printer, NULL, lpDevMode); ClosePrinter(&hPrinter); #endif #else hDC = CreateDC(L"WINEPS.DRV", L"FF", NULL, lpDevMode); #endif #ifdef PRINT DOCINFO doc_info; doc_info.cbSize=sizeof(DOCINFO)+12; doc_info.lpszDocName=dname; doc_info.lpszOutput=prn; doc_info.lpszDatatype=NULL; doc_info.fwType=0; // Start a printer job StartDoc(hDC, &doc_info); #endif // get number of pixels per inch (horizontally and vertically) logpixelsx = GetDeviceCaps(hDC, LOGPIXELSX); logpixelsy = GetDeviceCaps(hDC, LOGPIXELSY); // convert points into pixels size_x = (int)page_width / 72 * logpixelsx; size_y = (int)page_height / 72 * logpixelsy; DWORD p_width =GetDeviceCaps(hDC, HORZSIZE)*100; DWORD p_height=GetDeviceCaps(hDC, VERTSIZE)*100; SetRect( &rect, 0, 0, p_width, p_height ); #ifdef DEBUG //fprintf(stderr, "x=%u, y=%u, pw=%u, ph=%u,sx=%u,sy=%u,lpx=%u,lpy=%u,size_x=%u,size_y=%u\n",x,y,page_width,page_height,sx,sy,logpixelsx,logpixelsy,size_x,size_y); #endif // now load the pages one after another for (i=0; i < FPDF_GetPageCount(pdf_doc); i++) { #ifdef DEBUG fprintf(stderr, "Load page %d/%d\n", i, FPDF_GetPageCount(pdf_doc)); #endif // Load the next page pdf_page = FPDF_LoadPage(pdf_doc, i); if (pdf_page == NULL) ErrorExit(L"FPDF_LoadPage"); fbuf=NULL; #ifdef DEBUG sprintf_s(buf, 255, "test-%d.emf", i); //fbuf=buf; #endif // Create a metafile to render to hMeta = CreateEnhMetaFileA(hDC, fbuf, &rect, "SPLFilter.exe\0Created by Fabian\0\0"); if (hMeta == NULL) ErrorExit(L"CreateEnhMetaFileA"); // Call FPDF_RenderPage function to render the whole page FPDF_RenderPage(hMeta, pdf_page, 0, 0, size_x, size_y, 0, 0); #ifdef PRINT // Start a new printing page StartPage(hDC); FPDF_RenderPage(hDC, pdf_page, 0, 0, size_x, size_y, 0, 0); EndPage(hDC); #endif // Close PDF page FPDF_ClosePage(pdf_page); efile=CloseEnhMetaFile(hMeta); if (efile == NULL) ErrorExit(L"CloseEnhMetaFile"); // Write EMF data - via enumeration, because we want to embed fonts later EnumEnhMetaFile(hDC, efile, enum_it, NULL, &rect); // Write EndPage() record { SMR_EOPAGE smr_eopage; smr_eopage.smrext.smr.iType=SRT_EXT_EOPAGE_VECTOR; smr_eopage.smrext.smr.nSize=sizeof(smr_eopage)-sizeof(smr_eopage.smrext.smr); /* FIXME: Need to calcualte low and high correctly */ smr_eopage.smrext.DistanceLow=bufSize+smr_eopage.smrext.smr.nSize; smr_eopage.smrext.DistanceHigh=0; fwrite(&smr_eopage, sizeof(smr_eopage), 1, out); } DeleteEnhMetaFile(efile); } #ifdef PRINT EndDoc(hDC); #endif fclose(out); out=NULL; DeleteDC(hDC); FPDF_CloseDocument(pdf_doc); #ifdef DEBUG fprintf(stderr, "SPLFilter: Conversion successful!\n"); #endif exit(0); }