On 17 Mar 2015, at 10:28 pm, Sandor Szatmari admin.szatmari@gmail.com
wrote:
I like the simplicity of your design, but considering point b, how does a
play head that spans multiple tracks, for a multi track editing interface,
work? Presumably, we're talking about each view managing
Graham,
On Mar 15, 2015, at 18:57, Graham Cox graham@bigpond.com wrote:
If I were designing this, I'd probably have a single NSView subclass that
handled three things: a) optimally drawing the waveform, b) maintaining and
drawing the playhead and
I like the simplicity of your design,
Why bother with a timer loop to animate the wiper when that functionality is
built-in through CoreAnimation?
Especially since you are using an image as the wave background.
CoreAnimation will move the wiper smoothly and accurately. All you have to do
is provide the distance it must travel and
A fairly simple way to implement a selection rectangle is to use
CALayer, but that only gives you the visual aspect. What does it
select? Answer that question first and that will tend to lead you to
the appropriate way to implement it.
This NSView is of an audio waveform. I currently have my
Why bother with a timer loop to animate the wiper when that functionality is
built-in through CoreAnimation?
Especially since you are using an image as the wave background.
I guess because I like the playhead being tied to the actual
current sample position, not a separate animation that is
On Sun, Mar 15, 2015, at 02:22 AM, Patrick J. Collins wrote:
My next approach was to save my drawn waveform to an NSImage and use
that as a background for my view... If you have a better suggestion for
how I could handle this, I'd love to hear it.
This is a good idea. It would be better yet
On 15 Mar 2015, at 7:22 pm, Patrick J. Collins
patr...@collinatorstudios.com wrote:
This NSView is of an audio waveform. I currently have my drawRect:
method draw the lines of my waveform,
Have you designed it so that it only draws the minimum it needs to? For
example, if your audio
On 15 Mar 2015, at 3:44 am, Patrick J. Collins
patr...@collinatorstudios.com wrote:
Is there anything built-in that does this for me?
No.
You need to stop thinking this way. Cocoa does a lot, but it doesn't do
everything. It goes only as far as very general solutions to very general
I have a NSView with a background image, and am wondering, what is the
best / easiest way to create the behavior so that if I click on a point
within this NSView and drag a direction, the click point to the current
mouse position would then be highlighted (inverse the colors of the
image for that
