how to add a picture

ecosignitchile
Topic Author
Offline
New Member

10 years 6 months ago #9356 by ecosignitchile

how to add a picture was created by ecosignitchile

Hi , i need to add a picture like a stamp ... what is the method to do it ?

thanks !

stronglee
Offline
Premium Member

10 years 5 months ago #9365 by stronglee

Replied by stronglee on topic how to add a picture

Hi, PDFPage class have method
-(bool)addAnnotBitmap:(CGImageRef) bitmap :(bool) has_alpha :(const PDF_RECT *) rect;
have try

ecosignitchile
Topic Author
Offline
New Member

10 years 5 months ago #9377 by ecosignitchile

Replied by ecosignitchile on topic how to add a picture

thanks ! can you show me an example please : ) ???

emanuele
Offline
Banned

10 years 5 months ago #9382 by emanuele

Replied by emanuele on topic how to add a picture

Hi,

here is an example to add a picture in the current page (you can add this method in PDFView class):

Code:

- (void)vAddImage:(NSString *)image withRect:(PDF_RECT)rect
{
    NSString *tp = NSTemporaryDirectory();
    tp = [tp stringByAppendingPathComponent:@"cache.dat"];
    [m_doc setCache:tp];
    
    PDFPage *page = [m_doc page:m_cur_page];
    
    CGImageRef ref = [[UIImage imageNamed:image] CGImage];
    
    [page addAnnotBitmap:ref :NO :&rect];
    
    [m_view vRenderSync:m_cur_page];
    [self refresh];
    [m_doc save];
}

the first part set the cache file (is needed to add an image).

I tried that method with this simple code:

Code:

PDF_RECT rect;
    
    rect.left = 100;
    rect.right = 57;
    rect.top = 100;
    rect.bottom = 57;
    
    [m_view vAddImage:@"icon57.png" withRect:rect];

ecosignitchile
Topic Author
Offline
New Member

10 years 5 months ago #9384 by ecosignitchile

Replied by ecosignitchile on topic how to add a picture

thanks i get errors on this lines :

[m_view vRenderSync:m_cur_page];
where do i get page number ?

[m_view vRenderSync:m_cur_page];
vRenderSync this method looks like doesn't exist
[self refresh];
dont know : )

thanks !

emanuele
Offline
Banned

10 years 5 months ago #9385 by emanuele

Replied by emanuele on topic how to add a picture

To use this method without errors, you should add it in PDFView.m

Time to create page: 0.475 seconds