Re: Drawing outside of drawRect for NSView..
Re: Drawing outside of drawRect for NSView..
- Subject: Re: Drawing outside of drawRect for NSView..
- From: "I. Savant" <email@hidden>
- Date: Sun, 15 Oct 2006 10:15:05 -0400
Carter:
This is not the correct approach. Check out the Sketch example
code in your Developer folder. Take your time to ferret out the
selection code (for drag-selecting shapes in the drawing).
Basically, you want to define the starting point during your
mouseDown: event. You'll also want a BOOL like "isSelecting". As the
user continues dragging, keep updating the end point and flag your
view as needing displayed. When the mouse button is released (ie
NSLeftMouseUp), set isSelecting to NO and flag for display again.
In your drawRect: method, if "isSelecting", you take those two
points, determine your rectangle, and draw your necessary selection
adornments. If it's not selecting, don't draw the adornments -- since
you'll be marking your view as needing display in the right places in
your mouseDown: loop, the selection rectangle will 'disappear' when
the mouse is released.
I hope this helps.
--
I.S.
On Oct 15, 2006, at 9:35 AM, Carter R. Harrison wrote:
Is it possible to draw to a view outside of drawRect? For
instance, what if I wanted to draw an NSRect when the mouseDown
event is fired? Is this kind of thing bad practice? I've been
trying to draw an NSRect to my view during the mouseDown event, but
for reasons unknown to me the NSRect is being applied to the window
and its coordinate system rather than my view's (and yes I used
convertPoint:toView:). Thanks in advance.
----------------------------------
Carter R. Harrison
email@hidden
----------------------------------
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40gmail.com
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden