本文整理汇总了C++中PDFDoc::getPageCropWidth方法的典型用法代码示例。如果您正苦于以下问题：C++ PDFDoc::getPageCropWidth方法的具体用法？C++ PDFDoc::getPageCropWidth怎么用？C++ PDFDoc::getPageCropWidth使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PDFDoc的用法示例。
在下文中一共展示了PDFDoc::getPageCropWidth方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: getPage
// 0 <= pageNo <numPage
CImage* getPage(int w, int h, int pageNo)
{
if(!cacheValid(w,h,pageNo))
{
// poppler uses 1 indexing for pageNo.
double DPI_W=calcDPI_width(w, pageNo);
double DPI_H=calcDPI_height(h, pageNo);
double DPI=MIN(DPI_W, DPI_H);
delete _textCache[pageNo]; _textCache[pageNo]=new intmatrixn();
_textCacheState=pageNo;
//_pdfDoc->getPageRotate(pageNo+1)
_pdfDoc->displayPage(_outputDev, pageNo+1, DPI, DPI, 0, gFalse, gTrue, gFalse);
#ifdef USE_NULLOUTPUTDEV
_nullOutputDev->setInfo(_pdfDoc->getPageRotate(pageNo+1),
_pdfDoc->getCatalog()->getPage(pageNo+1)->getCropBox()->x1,
_pdfDoc->getCatalog()->getPage(pageNo+1)->getCropBox()->y1,
_pdfDoc->getPageCropWidth(pageNo+1),
_pdfDoc->getPageCropHeight(pageNo+1),
_outputDev->getBitmap()->getWidth(),
_outputDev->getBitmap()->getHeight());
_pdfDoc->displayPage(_nullOutputDev, pageNo+1, DPI, DPI, 0, gFalse, gTrue, gFalse);
#endif
_textCacheState=-1;
/*//_pdfDoc->displayPageSlice(_outputDev, pageNo+1, DPI, DPI, 0, gFalse, gTrue, gFalse, 20,20, 400,400);
if(zoom2<zoom1)
{
if(h==_outputDev->getBitmap()->getHeight())
bOkay=true;
else
{
vDPI=72.0*h/_pdfDoc->getPageCropHeight(pageNo+1);
}
}
else
{
if(w==_outputDev->getBitmap()->getWidth())
bOkay=true;
else
{
double tt=72*w/_pdfDoc->getPageCropHeight(pageNo+1);
}
}
}
while(!bOkay);*/
SplashBitmap *temp=_outputDev->takeBitmap();
CImage* ptr=new CImage();
ptr->SetData(temp->getWidth(), temp->getHeight(), temp->getDataPtr(), temp->getRowSize());
delete _bmpCache[pageNo]; _bmpCache[pageNo]=ptr;
delete temp;
}
return _bmpCache[pageNo];
}示例2: pageCropHeight
double pageCropHeight(int pageNo)
{
int rotate=_pdfDoc->getPageRotate(pageNo+1);
if(rotate==90 || rotate==270)
return _pdfDoc->getPageCropWidth(pageNo+1);
return _pdfDoc->getPageCropHeight(pageNo+1);
}示例3: main
int main(int argc, char *argv[]) {
PDFDoc *doc;
GString *fileName;
GString *ownerPW, *userPW;
SplashColor paperColor;
SplashOutputDev *splashOut;
GBool ok;
int exitCode;
int pg;
exitCode = 99;
// parse args
ok = parseArgs(argDesc, &argc, argv);
if (!ok || argc != 2 || printVersion || printHelp) {
fprintf(stderr, "pdf2jpeg version %s\n", xpdfVersion);
fprintf(stderr, "%s\n", xpdfCopyright);
if (!printVersion) {
printUsage("pdf2jpeg", "<PDF-file> -o <jpegfile>", argDesc);
}
goto err0;
}
fileName = new GString(argv[1]);
// read config file
globalParams = new GlobalParams(cfgFileName);
globalParams->setupBaseFonts(NULL);
// open PDF file
if (ownerPassword[0]) {
ownerPW = new GString(ownerPassword);
} else {
ownerPW = NULL;
}
if (userPassword[0]) {
userPW = new GString(userPassword);
} else {
userPW = NULL;
}
doc = new PDFDoc(fileName, ownerPW, userPW);
if (userPW) {
delete userPW;
}
if (ownerPW) {
delete ownerPW;
}
if (!doc->isOk()) {
exitCode = 1;
goto err1;
}
paperColor[0] = paperColor[1] = paperColor[2] = 0xff;
splashOut = new SplashOutputDev(splashModeRGB8, 1, gFalse, paperColor);
splashOut->startDoc(doc->getXRef());
if(page>=1 && page<=doc->getNumPages()) {
double r = resolution;
if(width) {
int old_width = doc->getPageCropWidth(page);
r = 72.0*width/old_width;
}
doc->displayPage(splashOut, page, r, r, 0, gFalse, gTrue, gFalse);
SplashBitmap*bitmap = splashOut->getBitmap();
if(bitmap) {
Guchar*rgb = bitmap->getDataPtr();
int width = bitmap->getWidth();
int height = bitmap->getHeight();
jpeg_save(rgb, width, height, quality, output);
}
}
delete splashOut;
exitCode = 0;
// clean up
err1:
delete doc;
delete globalParams;
err0:
// check for memory leaks
Object::memCheck(stderr);
gMemReport(stderr);
return exitCode;
}