Generate PDF documents on iOS

// Create empty PDF context on iPhone for later randering in it

-(Cgcontextref) create‑context :( cgrect) inmediabox path :( cfstringref) path

{

Cgcontextref myoutcontext = NULL;

Cfurlref URL;

Url = cfurlcreatewithfilesystempath (null ,//
1

Path,

Kcfurlposixpathstyle,

False );

If (URL! = NULL ){

Myoutcontext = cgw.contextcreatewithurl (URL, // 2

& Inmediabox,

Null );

Cfrelease (URL); // 3

}

Return myoutcontext; // 4

}

 

Nsarray * paths = nssearchpathfordirectoriesindomains (nsdocumentdirectory, nsuserdomainmask, yes );

Nsstring * documentsdirectory = [paths objectatindex: 0];

Nsstring * writabledbpath = [documentsdirectory stringbyappendingpathcomponent: @ "tmpparts"];

 

Cgcontextref implements context = [self createmediacontext: scrolledview. bounds path cfstringref) writabledbpath];

 

Nslog (@ "pdf context created ");

Cgcontextbeginpage (encryption context, nil );//
6

 

// Turn PDF upsidedown

Cgaffinetransform transform = cgaffinetransformidentity;

Transform = cgaffinetransformmaketranslation (0, scrolledview. bounds. Size. Height );

Transform = cgaffinetransformscale (transform, 1.0,-1.0 );

Cgcontextconcatctm (encryption context, transform );

 

// Draw view into PDF

[Scrolledview. layer renderincontext: encryption context];

 

Cgcontextendpage (encryption context); // 8

Cgcontextrelease (encryption context );