How to customize macOS print modal for an app?-CodePudding

Looking at an existing macOS app I see the print modal has an app specific option:

Don't print bracketed chords (hide [C], [Dm], etc.)

Toggling this option updates the preview instantly. Could someone point me in the direction for the documentation for this feature of customising the print modal?

CodePudding user response：

Check your NSGraphicsContext when you override your drawing

class MyView: NSView {
    override func draw(_ dirtyRect: NSRect) {
        if NSGraphicsContext.currentContextDrawingToScreen() {
            // draw for screen
        } else {
            // draw for print
        }
    }
}

Now create a NSPrintOperation:

let sheetHostingWindow: NSWindow = ...
let viewToPrint = NSStackView()
// ... prepare the stack view ...
let printOperation = NSPrintOperation(view: viewToPrint)
printOperation.runModal(
    for: sheetHostingWindow,
    delegate: nil,
    didRun: nil,
    contextInfo: nil)

Thats it.

For an example take a look here: https://github.com/CleanCocoa/NSTableView-Printing and for more information about the code above here: https://christiantietze.de/posts/2021/06/printing-nstableview-with-label/

CodePudding user response：

I found the answer in apple docs https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Printing/osxp_printpanel/osxp_printpanel.html#//apple_ref/doc/uid/20000862-BAJBFGED