Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.
for those interested, convert a pdf page into an ui.Image
-
I use it for pdf covers as buttons images.
from objc_util import * import ui def GetUIImageOfPDFPage(path,pageid=1): UIGraphicsGetCurrentContext = c.UIGraphicsGetCurrentContext UIGraphicsGetCurrentContext.restype = c_void_p UIGraphicsGetCurrentContext.argtypes = [] CGPDFDocumentCreateWithURL = c.CGPDFDocumentCreateWithURL CGPDFDocumentCreateWithURL.restype = c_void_p CGPDFDocumentCreateWithURL.argtypes = [c_void_p] CGPDFDocumentGetNumberOfPages = c.CGPDFDocumentGetNumberOfPages CGPDFDocumentGetNumberOfPages.restype = c_void_p CGPDFDocumentGetNumberOfPages.argtypes = [c_void_p] CGPDFDocumentGetPage = c.CGPDFDocumentGetPage CGPDFDocumentGetPage.restype = c_void_p CGPDFDocumentGetPage.argtypes = [c_void_p, c_void_p] CGPDFPageGetBoxRect= c.CGPDFPageGetBoxRect CGPDFPageGetBoxRect.restype = CGRect CGPDFPageGetBoxRect.argtypes = [c_void_p,c_void_p] CGContextDrawPDFPage = c.CGContextDrawPDFPage CGContextDrawPDFPage.restype = None CGContextDrawPDFPage.argtypes = [c_void_p,c_void_p] ns_url = nsurl(path) document = CGPDFDocumentCreateWithURL(ObjCInstance(ns_url)) #np = CGPDFDocumentGetNumberOfPages(document) #print('CGPDFDocumentGetNumberOfPages=',np) # to check if document is ok page = CGPDFDocumentGetPage(document,pageid) page_mediabox = CGPDFPageGetBoxRect(page,0) # CGPDFBox=0=>kCGPDFMediaBox w = page_mediabox.size.width h = page_mediabox.size.height #print('mediabox=',w,h) # to check if mediabox is ok with ui.ImageContext(w,h) as context: cn = UIGraphicsGetCurrentContext() CGContextDrawPDFPage(cn,page) ui_image = context.get_image() return ui_image # Protect against import if __name__ == '__main__': full_path = '......pdf' ui_image = GetUIImageOfPDFPage(full_path,pageid=40) v = ui.ImageView() v.image = ui_image v.transform = ui.Transform.scale(1,-1) # CGContext is up/down inverted v.present(hide_title_bar=True) -
We can do the transform inside the def via ObjectiveC
from objc_util import * import ui def GetUIImageOfPDFPage(path,pageid=1): UIGraphicsGetCurrentContext = c.UIGraphicsGetCurrentContext UIGraphicsGetCurrentContext.restype = c_void_p UIGraphicsGetCurrentContext.argtypes = [] CGPDFDocumentCreateWithURL = c.CGPDFDocumentCreateWithURL CGPDFDocumentCreateWithURL.restype = c_void_p CGPDFDocumentCreateWithURL.argtypes = [c_void_p] CGPDFDocumentGetNumberOfPages = c.CGPDFDocumentGetNumberOfPages CGPDFDocumentGetNumberOfPages.restype = c_void_p CGPDFDocumentGetNumberOfPages.argtypes = [c_void_p] CGPDFDocumentGetPage = c.CGPDFDocumentGetPage CGPDFDocumentGetPage.restype = c_void_p CGPDFDocumentGetPage.argtypes = [c_void_p, c_void_p] CGPDFPageGetBoxRect= c.CGPDFPageGetBoxRect CGPDFPageGetBoxRect.restype = CGRect CGPDFPageGetBoxRect.argtypes = [c_void_p,c_void_p] CGContextDrawPDFPage = c.CGContextDrawPDFPage CGContextDrawPDFPage.restype = None CGContextDrawPDFPage.argtypes = [c_void_p,c_void_p] CGContextScaleCTM = c.CGContextScaleCTM CGContextScaleCTM.restype = None CGContextScaleCTM.argtypes = [c_void_p, CGFloat, CGFloat] CGContextTranslateCTM = c.CGContextTranslateCTM CGContextTranslateCTM.restype = None CGContextTranslateCTM.argtypes = [c_void_p, CGFloat, CGFloat] ns_url = nsurl(path) document = CGPDFDocumentCreateWithURL(ObjCInstance(ns_url)) #np = CGPDFDocumentGetNumberOfPages(document) #print('CGPDFDocumentGetNumberOfPages=',np) # to check if document is ok page = CGPDFDocumentGetPage(document,pageid) kCGPDFMediaBox = 0 page_mediabox = CGPDFPageGetBoxRect(page,kCGPDFMediaBox) w = page_mediabox.size.width h = page_mediabox.size.height #print('mediabox=',w,h) # to check if mediabox is ok with ui.ImageContext(w,h) as context: cn = UIGraphicsGetCurrentContext() CGContextTranslateCTM(cn,0.0,h) CGContextScaleCTM(cn, 1.0, -1.0) CGContextDrawPDFPage(cn,page) return ui_image # Protect against import if __name__ == '__main__': full_path = '/private/var/mobile/Library/Mobile Documents/iCloud~com~omz-software~Pythonista3/Documents/Mes Livres/Les Blondes - La compil des vacances.pdf' ui_image = GetUIImageOfPDFPage(full_path,pageid=40) v = ui.ImageView() v.image = ui_image #v.transform = ui.Transform.scale(1,-1) # CGContext is up/down inverted v.present(hide_title_bar=True)
