WebView pdf representation - div background colours AWOL
I create local mustache template driven HTML content and display it in my OS X 10.9 app using WebView. I get the WebView PDF representation like so: NSView *webDocumentView = [[[self.webView mainFrame] frameView] documentView]; NSData *pdfData = [webDocumentView dataWithPDFInsideRect:webDocumentView.frame]; However, the pdf rendering is missing some simple div background colouring (like alternating backgrounds on table rows). The HTML looks as required in the WebView. What have I missed? Jonathan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WebView pdf representation - div background colours AWOL
On Mar 11, 2014, at 8:55 AM, jonat...@mugginsoft.com wrote: > However, the pdf rendering is missing some simple div background colouring > (like alternating backgrounds on table rows). When I print from Safari there’s a checkbox to hide backgrounds (to save ink). Maybe that’s a WebView option that’s on by default? You could look for a property in the API that controls that. —Jens smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WebView pdf representation - div background colours AWOL
On 11 Mar 2014, at 16:03, Jens Alfke wrote: > > On Mar 11, 2014, at 8:55 AM, jonat...@mugginsoft.com wrote: > >> However, the pdf rendering is missing some simple div background colouring >> (like alternating backgrounds on table rows). > > When I print from Safari there’s a checkbox to hide backgrounds (to save > ink). Maybe that’s a WebView option that’s on by default? You could look for > a property in the API that controls that. > There is WebView -drawsBackground but this has no disernable effect. I will dig into the API a bit more. I was hung up on thinking that it was a CSS problem. Jonathan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WebView pdf representation - div background colours AWOL
> On 11 Mar 2014, at 16:03, Jens Alfke wrote: > >> >> On Mar 11, 2014, at 8:55 AM, jonat...@mugginsoft.com wrote: >> >>> However, the pdf rendering is missing some simple div background colouring >>> (like alternating backgrounds on table rows). >> >> When I print from Safari there’s a checkbox to hide backgrounds (to save >> ink). Maybe that’s a WebView option that’s on by default? You could look for >> a property in the API that controls that. >> > Thinking again about this. Perhaps I need to use an NSPrintOperation instead. Jonathan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Getting a selection range from a pdfselection...
Dear cocoa-devs, Trying to figure out how to get a pages selection range (offset and length) for a pdfselection. I've been using the bounding rect, but if I have a selection that is a sentence that crosses lines and terminates half way in the last line, the rect includes everything to the edge (of course). But if I just want the offset and length, how do I extract that? Frustrated Matthew Weinstein ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: WebView pdf representation - div background colours AWOL
On 11 Mar 2014, at 17:12, jonat...@mugginsoft.com wrote: > There is WebView -drawsBackground but this has no disernable effect. That property is for the case where you want a transparent webview on screen. > Thinking again about this. > Perhaps I need to use an NSPrintOperation instead. Yeah, that's what I would have suggested. ISTR that PDF generation generally goes through the printing mechanism, so if you want to modify some options there, that's probably the way to go. Cheers, -- Uli Kusterer "The Witnesses of TeachText are everywhere..." http://www.zathras.de ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Draw image within a NSBezierPath with no border
Hi Kyle,
thank you for your suggestions, but the clearColor doesn't cast shadow. I
tried the transparency layers too, but when I export the view to a PDF using
dataWithPDFInsideRect, I get no compression (specified in the quartzFilter).
Instead, If I do not use the transparency layers, I properly get the
compression.
pdfData = [printView dataWithPDFInsideRect:printRect];
pdfDoc = [[PDFDocument alloc] initWithData:pdfData];
[pdfDoc writeToFile:outFilePath withOptions:optionsDictWithQuartzFilter];
By ³get the shadow out of the fillPath² I mean that I have a view 100 x 100
pixels, I draw an image 50 x 50 in the center of the view, so the shadow
should be well visible. But since I clip the image rect, the shadow doesn't
appear.
Regards
-- Leonardo
> Da: Kyle Sluder
> Data: Thu, 6 Mar 2014 09:54:04 -0800
> A: Leonardo
> Cc: Kevin Meaney , "cocoa-dev@lists.apple.com"
>
> Oggetto: Re: Draw image within a NSBezierPath with no border
>
>
>> On Mar 6, 2014, at 9:25 AM, Leonardo wrote:
>>
>> That's make sense. Do you know any workaround?
>> I have to draw the background color because:
>>1) the user could choose to see a background color on the area not
>> covered by the image. Let's imagine a circle divided in 3 slices by two
>> vertical lines. In the middle we have the image, and on the left and right
>> areas we see the color. So, at the top and bottom of the image I see that
>> bad blue curved border.
>
> Create a CGLayer from your destination context that is the size of your image.
> Fill it with your background color. Draw your image into it. Set the clipping
> path on the destination context. Draw the CGLayer into the destination
> context.
>
>>2) In case of shadow, if I do not fill with a color before clipping the
>> path I can't get the shadow out of the path. If I do
>>
>> CGContextSetShadowWithColor...
>> [fillPath addClip];
>> [image drawInRect:fillBounds fromRect:NSZeroRect
>> operation:NSCompositeSourceOver fraction:1.0];
>>
>> I can't get the shadow out of the fillPath.
>
> I don¹t know what you mean by ³get the shadow out of the fillPath².
>
> Do you mean that you don¹t want the shadow to appear below transparent parts
> the your image?
>
>> Instead If I do:
>>
>> CGContextSetShadowWithColor...
>>[aBlueColor set];
>>[fillPath fill];
>> RemoveShadow
>>[fillPath addClip];
>>[image drawInRect:fillBounds fromRect:NSZeroRect
>>operation:NSCompositeSourceOver fraction:1.0];
>>
>> The problem is that I must clip the path before drawing the image, and as
>> result the image itself can't project shadow outside the clipped path.
>> I am puzzled.
>
> If you use my above technique, you should be able to create the shadow and
> then draw the layer on top of it:
>
> - drawRect: {
> // Draw the shadow
> CGContextSaveGState();
> NSBezierPath *oval = ;
> [[NSColor clearColor] setFill];
> CGContextSetShadowWithColor();
> [oval fill];
> CGContextRestoreGState();
>
> // Draw the clipped image
> CGLayerRef layer = MakeLayerFromImage();
> CGContextSaveGState();
> [oval addClip];
> CGLayerDrawAtPoint(layer, );
> CGContextRestoreGState();
> }
>
> This might not work. I¹m unsure of the behavior of Quartz shadows when drawing
> with +clearColor. If it doesn¹t work, you might want to look into Quartz
> transparency layers (which are not the same thing as CGLayerRefs).
>
> --Kyle Sluder
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Re: WebView pdf representation - div background colours AWOL
On 11 Mar 2014, at 18:09, Uli Kusterer wrote: > On 11 Mar 2014, at 17:12, jonat...@mugginsoft.com wrote: >> There is WebView -drawsBackground but this has no disernable effect. > > That property is for the case where you want a transparent webview on screen. > >> Thinking again about this. >> Perhaps I need to use an NSPrintOperation instead. > > Yeah, that's what I would have suggested. ISTR that PDF generation generally > goes through the printing mechanism, so if you want to modify some options > there, that's probably the way to go. The WebPreferences API has the required property: WebPreferences *webPref = [[WebPreferences alloc] initWithIdentifier:@“Foo"]; [webPref setShouldPrintBackgrounds:YES]; [self.webView setPreferences:webPref]; It appears that using an NSPrintOperation is only a necessity for PDF generation if the output scaling and pagination has to be modified. Jonathan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
