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);
}
