By default, the events (mouse/cursor/scroll...) are bypassed to the controls under the NSView, for example, there are one NSView (named A) and one NSTextField (named B). A and B are at same place, and A is above B.
- All mouse events passed to B (TextField)
- Cursor has been changed as "I", not the default cursor as expected
- Scroll mouse will scroll B (the textfield if multiple lines)
I'd like that if mouse on A (the NSView), all the events are not passed to B. So I subclass NSView for A as the code following:
// ------------------------------------------------
class ResponsibleView: NSView {
override func acceptsFirstMouse(theEvent: NSEvent?) -> Bool {
return true
}
override var acceptsFirstResponder : Bool {
return true
}
override func mouseUp(theEvent: NSEvent) {
}
override func resetCursorRects() {
superview?.resetCursorRects()
self.addCursorRect(self.bounds, cursor: NSCursor.arrowCursor())
}
override func scrollWheel(theEvent: NSEvent) {
}
}
// ------------------------------------------------
Now there is a problem on cursor - the cursor is not stable, sometimes the cursor appears correctly, but sometimes incorrect. Would you please help to check following my questions?
- Is there simple solution to avoid events bypassing NSView?
- Why the cursor is too strange, how to make it be stable?
- Why the cocoa for OSX makes things too complicated and not be intuitive? ( I am new for OSX development), is there any modern UI solution for OSX like XAML ...
Thanks,
