November 2007 - Pro-apps-dev

Re: creating interlaced frames
by Micah Sharp 29 Nov '07

29 Nov '07

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Re: creating interlaced frames
by Micah Sharp 29 Nov '07

29 Nov '07

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Re: creating interlaced frames
by Darrin Cardani 29 Nov '07

29 Nov '07

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creating interlaced frames
by Micah Sharp 29 Nov '07

29 Nov '07

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Darrin Cardani 26 Nov '07

26 Nov '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com On Nov 19, 2007, at 10:47 AM, Benjamin Kent wrote: 1 1 1 1 1 1 1 1 1 0 0 0 0 *0 *0 0 0 0 Whereas we want this behaviour: 1 1 1 1 *0 *1 1 1 1 So we set the keyframes either side: 1 1 1 *1 0 1 *1 1 1 Darrin -- Darrin Cardani dcardani(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… Essentially, yes, I do want to just set keyframes on check boxes. But the behaviour we need is that the box is checked on a given frame unless the user has explicitly unchecked it at that frame. Now, with a normal keyframeable check box with a default value of checked, when the user sets the first keyframe by unchecking a box, it will uncheck the box at all frames. So we need to set a keyframe either side of this frame to stop this happening. So, given a sequence with the check box represented by a binary value, and bold indicating a keyframe, the default state is: The user then sets a keyframe by unchecking the box at a frame - the normal behaviour would be: One way round this I suppose would be to automatically set a keyframe with value 1 at every frame when initializing the plug-in. But frankly this is all a little moot being as there aren't keyframeable check boxes anyway :) Sorry I didn't get back to you sooner. We were out of the office all last week for a holiday. I think I get what you're doing now. I still think it's highly confusing for users, though. If this makes sense now, you couldn't expand on your idea for a timeline in a custom control could you? Well, I didn't have a whole lot of details in mind. What I was thinking of was that instead of creating a regular checkbox, you'd create a custom control. In that control, you'd create your own timeline. You should be able to use the FxTimingAPI to get information about the length of the clip you're applied to. You'd need to create some sort of UI for the user to go to a specific time, and allow them to set the value of the check box at that time. Or any other ideas that come to mind. I haven't had a chance to try the timer approach yet - I'll give it a go, but as you say it's not ideal - sounds bound to come back and bite me. I agree. I'm hoping we can get this functionality into the app in the future so you don't need any workarounds, but it will have to go through the entire process, so it will be a while before it gets into users hands. This email sent to site_archiver(a)lists.apple.com

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Pierre Jasmin 20 Nov '07

20 Nov '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com Organization: RE:Vision Effects User-agent: Thunderbird 2.0.0.9 (Windows/20071031) Darrin, Pierre 1 1 1 1 1 1 1 1 1 0 0 0 0 *0 *0 0 0 0 Whereas we want this behaviour: 1 1 1 1 *0 *1 1 1 1 So we set the keyframes either side: 1 1 1 *1 0 1 *1 1 1 Cheers Ben On Nov 12, 2007, at 9:18 AM, Benjamin Kent wrote: This email sent to jasmin(a)revisionfx.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… IF you ever get into a situation of make bool OR popup animatable, I would go for popups first as you can always make a bool by having a two options popup // Naturally we will be able to query version to decide to turn this on when implemented :) Benjamin Kent wrote: Essentially, yes, I do want to just set keyframes on check boxes. But the behaviour we need is that the box is checked on a given frame unless the user has explicitly unchecked it at that frame. Now, with a normal keyframeable check box with a default value of checked, when the user sets the first keyframe by unchecking a box, it will uncheck the box at all frames. So we need to set a keyframe either side of this frame to stop this happening. So, given a sequence with the check box represented by a binary value, and bold indicating a keyframe, the default state is: The user then sets a keyframe by unchecking the box at a frame - the normal behaviour would be: One way round this I suppose would be to automatically set a keyframe with value 1 at every frame when initializing the plug-in. But frankly this is all a little moot being as there aren't keyframeable check boxes anyway :) If this makes sense now, you couldn't expand on your idea for a timeline in a custom control could you? Or any other ideas that come to mind. I haven't had a chance to try the timer approach yet - I'll give it a go, but as you say it's not ideal - sounds bound to come back and bite me. Darrin Cardani wrote: My plug-in requires an animatable bool parameter (representing the validity of a frame at given time). So a user will set a single frame X as invalid, but all other frames should still be valid. This action really requires setting a value of false at frame X and a value of true at X-1 and X+1 all in one go (otherwise when setting a value of false at X, all other frame values would also be set to false). On other hosts this is either done with a pushbutton which sets the three key frames on an animatable bool or an animatable integer parameter, but as it isn't possible for a plug-in to create keyframes on a parameter in FCP, this was a way around it (using an internal data structure to store the key frame information and a pushbutton check box to display the boolean value at a given frame to the user). I'm sorry, I still don't understand the interaction you're describing. This all sounds very bizarre to me. But to answer your original question, about redrawing your button, here's one method that I can think of. (I don't think this would be the ideal solution, though.) You could set up an NSTimer to call back into your plugin periodically. In your timer callback, you could call -startAction:, followed by -currentTime: to check if the current time is the same time as the last time you redrew your UI. If it's not, then you could call -setNeedsDisplay: on your button, and the OS will tell it to redraw. Then, of course, call -endAction. In your -drawRect: method, get the current time and save it for the next time your callback gets called. It sounds like what you really want, though, is a way to set keyframes on check boxes. You're not the only person who wants that, so it's possible we might add that functionality in the future. (That's not a guarantee, though! :) ) I'm still not getting why you need to set keyframes on the previous and next frame, though. It doesn't sound like something a typical user would understand, either. Would it be better to have your own timeline in your custom control? (Again, not a perfect solution, but a workable one.) Then you could have it do anything you wanted with keyframes, and it would at least be familiar to users what was happening. Darrin -- Darrin Cardani dcardani(a)apple.com <mailto:dcardani@apple.com> _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/jasmin%40revisionfx.com This email sent to site_archiver(a)lists.apple.com

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Benjamin Kent 19 Nov '07

19 Nov '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.0 (Macintosh/20070326) 1 1 1 1 1 1 1 1 1 0 0 0 0 *0 *0 0 0 0 Whereas we want this behaviour: 1 1 1 1 *0 *1 1 1 1 So we set the keyframes either side: 1 1 1 *1 0 1 *1 1 1 Cheers Ben On Nov 12, 2007, at 9:18 AM, Benjamin Kent wrote: Darrin -- Darrin Cardani dcardani(a)apple.com <mailto:dcardani@apple.com> _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… Essentially, yes, I do want to just set keyframes on check boxes. But the behaviour we need is that the box is checked on a given frame unless the user has explicitly unchecked it at that frame. Now, with a normal keyframeable check box with a default value of checked, when the user sets the first keyframe by unchecking a box, it will uncheck the box at all frames. So we need to set a keyframe either side of this frame to stop this happening. So, given a sequence with the check box represented by a binary value, and bold indicating a keyframe, the default state is: The user then sets a keyframe by unchecking the box at a frame - the normal behaviour would be: One way round this I suppose would be to automatically set a keyframe with value 1 at every frame when initializing the plug-in. But frankly this is all a little moot being as there aren't keyframeable check boxes anyway :) If this makes sense now, you couldn't expand on your idea for a timeline in a custom control could you? Or any other ideas that come to mind. I haven't had a chance to try the timer approach yet - I'll give it a go, but as you say it's not ideal - sounds bound to come back and bite me. Darrin Cardani wrote: My plug-in requires an animatable bool parameter (representing the validity of a frame at given time). So a user will set a single frame X as invalid, but all other frames should still be valid. This action really requires setting a value of false at frame X and a value of true at X-1 and X+1 all in one go (otherwise when setting a value of false at X, all other frame values would also be set to false). On other hosts this is either done with a pushbutton which sets the three key frames on an animatable bool or an animatable integer parameter, but as it isn't possible for a plug-in to create keyframes on a parameter in FCP, this was a way around it (using an internal data structure to store the key frame information and a pushbutton check box to display the boolean value at a given frame to the user). I'm sorry, I still don't understand the interaction you're describing. This all sounds very bizarre to me. But to answer your original question, about redrawing your button, here's one method that I can think of. (I don't think this would be the ideal solution, though.) You could set up an NSTimer to call back into your plugin periodically. In your timer callback, you could call -startAction:, followed by -currentTime: to check if the current time is the same time as the last time you redrew your UI. If it's not, then you could call -setNeedsDisplay: on your button, and the OS will tell it to redraw. Then, of course, call -endAction. In your -drawRect: method, get the current time and save it for the next time your callback gets called. It sounds like what you really want, though, is a way to set keyframes on check boxes. You're not the only person who wants that, so it's possible we might add that functionality in the future. (That's not a guarantee, though! :) ) I'm still not getting why you need to set keyframes on the previous and next frame, though. It doesn't sound like something a typical user would understand, either. Would it be better to have your own timeline in your custom control? (Again, not a perfect solution, but a workable one.) Then you could have it do anything you wanted with keyframes, and it would at least be familiar to users what was happening. This email sent to site_archiver(a)lists.apple.com

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Darrin Cardani 12 Nov '07

12 Nov '07

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Benjamin Kent 12 Nov '07

12 Nov '07

site_archiver(a)lists.apple.com Delivered-To: pro-apps-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.0 (Macintosh/20070326) Hi Darrin, Cheers Ben On Nov 12, 2007, at 8:46 AM, Benjamin Kent wrote: Thanks, Darrin -- Darrin Cardani dcardani(a)apple.com <mailto:dcardani@apple.com> ------------------------------------------------------------------------ _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/ben%40thefoundry.co.uk _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a… My plug-in requires an animatable bool parameter (representing the validity of a frame at given time). So a user will set a single frame X as invalid, but all other frames should still be valid. This action really requires setting a value of false at frame X and a value of true at X-1 and X+1 all in one go (otherwise when setting a value of false at X, all other frame values would also be set to false). On other hosts this is either done with a pushbutton which sets the three key frames on an animatable bool or an animatable integer parameter, but as it isn't possible for a plug-in to create keyframes on a parameter in FCP, this was a way around it (using an internal data structure to store the key frame information and a pushbutton check box to display the boolean value at a given frame to the user). Darrin Cardani wrote: I have a custom param which is masquerading as an animatable bool toggle - i.e. the param is a toggle push button and it's value is changed when my plug-in is rendered such that it reflects the value of an internal data structure cached in the plug-in. This works fine, except that if the frame is cached, the push button doesn't get updated. For example, the default value of the push button is checked - the user unchecks it and it sets a keyframe of value 0 in the internal data structure. The user goes to the next frame and the push button returns to checked (as the internal data structure value at this frame is still 1). Then, if you go back to the previous frame, the push button stays checked, as the plug-in never renders and sets the value of the push button. Now I realise I don't want to stop the caching, as a user would never be able to render and play a sequence - so is it possible to force the push button to have its drawRect function called whenever the frame is changed - that way I could query the plug-in at this point as to the value of the internal data structure? Ben, My first question would be, "Why do you want to do this?" I don't understand what you're trying to accomplish, but what you've described seems incredibly arcane and user unfriendly. Maybe if you describe in more detail what you're trying to do we can give you a better answer. This email sent to ben(a)thefoundry.co.uk This email sent to site_archiver(a)lists.apple.com

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Re: Forcing redraw on custom param pushbutton in FCP FxPlug plug-in whenever the frame is changed
by Darrin Cardani 12 Nov '07

12 Nov '07

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