Hello,
I intend to increase contrast of inactive radio buttons a little because they
are hardly legible.
The idea is to draw to a bitmap, increase contrast, draw to screen.
To my surprise this already increases contrast without any manipulation of the
bitmap.
What is going on here?
class MyRadioButton:NSButton
{
override init( frame frameRect: NSRect )
{
super.init( frame:frameRect )
setButtonType(.RadioButton)
}
required init?( coder:NSCoder )
{
super.init( coder:coder )
}
override var flipped:Bool { return false }
var bitmapContext:NSGraphicsContext!
var bitmap:NSBitmapImageRep!
override func drawRect( dirtyRect: NSRect )
{
if bitmapContext == nil {/*create bitmap and bitmapContext*/}
let savedContext = NSGraphicsContext.currentContext()
NSGraphicsContext.setCurrentContext( bitmapContext )
super.drawRect( dirtyRect )
// increase contrast in bitmap
let dirtyRectImage = CGImageCreateWithImageInRect(
bitmap.CGImage, dirtyRect )
NSGraphicsContext.setCurrentContext( savedContext! )
CGContextDrawImage( savedContext!.CGContext, dirtyRect,
dirtyRectImage )
}
}
_______________________________________________
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
