macOS NSPDFImageRep as background image

[fernandovalente]

With a NSImage, I would set the window background this way:

[window setBackgroundColor:[NSColor colorWithPatternImage:img]]

I have an NSPDFImageRep which I would like to set as the background color. How may I do that?

Thanks in advanced!

 

[robbieduncan]

Use the same NSColor method. Simply create an NSImage of the appropriate size and add the image rep you have to it.

 

[fernandovalente]

Use the same NSColor method. Simply create an NSImage of the appropriate size and add the image rep you have to it.

All I get is a window with a black image. Also, the application crashes. I tried this:

NSImage *img = [[NSImage alloc] initWithSize:[rep size]];
[img addRepresentation:rep];
[window setBackgroundColor:[NSColor colorWithPatternImage:img]];

 

[robbieduncan]

All I get is a window with a black image. Also, the application crashes. I tried this:

NSImage *img = [[NSImage alloc] initWithSize:[rep size]];
[img addRepresentation:rep];
[window setBackgroundColor:[NSColor colorWithPatternImage:img]];

Ouch! So there may be some undocumented issue using that sort of image rep then. How about you create the image, add a blank NSBitmapImageRep of the correct size etc, lock focus onto that and render the PDF rep into it?

 

[kainjow]

All I get is a window with a black image. Also, the application crashes. I tried this:

NSImage *img = [[NSImage alloc] initWithSize:[rep size]];
[img addRepresentation:rep];
[window setBackgroundColor:[NSColor colorWithPatternImage:img]];

Can you post your compete code? If it's crashing I would imagine something else is going on.

 

[fernandovalente]

Thank you guys. Found what was making my application crash.

I still have a problem. The window background is just black, not what I want it to be.

I'm using CGSPrivate and I would like to resize the window after the transition, and that's the only workaround I found.

This is the entire code I'm using to set the background image(I removed everything else from the function):

NSPDFImageRep *rep = [NSPDFImageRep imageRepWithData:[window dataWithEPSInsideRect:[window frame]]];
NSImage *img = [[NSImage alloc] init];
[img addRepresentation:rep];
[window setBackgroundColor:[NSColor colorWithPatternImage:img]];

 

[fernandovalente]

I found the mistake I made

NSPDFImageRep *rep = [NSPDFImageRep imageRepWithData:[window dataWithPDFInsideRect:[window frame]]];
	NSImage *img = [[NSImage alloc] init];
	[img addRepresentation:rep];
	[window setBackgroundColor:[NSColor colorWithPatternImage:img]];

Anyway, as the screenshot doesn't have the same size of the window(as the window will be resized), the rest of the window gets black.