Re: why NSTrackingArea doesn't work?
Thanks a lot, It worked! :-) I was creating a custom window, and wanted to make the close/minimize/zoom buttons to behave naturally. The only thing that isn't working in my custom window - is the click-through on the [NSWindow standardWindowButton] button (I am using a fake titlebar). Whenever the window is not main/key and I click on the button, I get to click twice -first to activate the window (make it main), second to actually click on the, for example, close button. Other ordinary cocoa buttons (NSPushButton) placed on this view allow clicking on them directly when the view is not active. These close/minimize/zoom buttons are placed on a view, that returns YES in a -(BOOL)acceptsFirstMouse:(NSEvent *)theEvent method. Well this is ignored, and for some weird reason, by default, the views, returned by [NSWindow standardWindowButton], return NO for acceptsFirstMouse (since i need to click twice). And I can't even sublass them to change what's happening. Maybe you can suggest something? Should I build the buttons from scratch, drawing all the icons by myself to make it behave real? Thank you 2011/6/23 Ken Thomases k...@codeweavers.com On Jun 22, 2011, at 7:41 PM, Conrad Shultz wrote: On 6/22/11 5:04 PM, Nick wrote: NSTrackingArea* trackingArea = [[NSTrackingArea alloc] initWithRect:[self frame] options: (NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways) owner:self userInfo:nil]; Don't use [self frame]... that is in the superview's coordinate system, not the tracking area's view's coordinate space (which is expected). Use [self bounds] instead; depending on the absolute position of your view this might make a HUGE difference. I strongly recommend considering use of NSTrackingInVisibleRect, too. If your view changes windows or moves within its window, this will make things a lot simpler. It can be the wrong thing in rare cases, but I'd be surprised if you need one of those. Regards, Ken ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Dragging from an NSBrowser to an NSTableView
Hi All, within my application i have a screen where exists and NSBrowser as well as an NSTableViews. can someone please let me know we can implement dragging items from the browser to the table view. any source reference on this would be very helpful. Thanks in Advance, Sandeep. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Animating handwriting
Hello all. Im wondering if animating handwriting is somehow possible to do, I have been looking but I find only how to do it in flash. Can somebody give me some headlights in the right direction so I can start digging into? Thanks a lot. Gustavo ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tooltips not firing on first try
I'll try to play with this a bit more using your suggestions. My issue is I click a button and a panel with the tableview launches, and if my mouse if over where that tableview launches the tooltips will not show. Even if I scroll around to different areas of the tableview the tooltip will not show. If I exit my mouse from the tableview and go back then it seems to work. Definitely if I make another app active (Finder for example) and then go back to my tableview it works... On Jun 23, 2011, at 7:28 AM, Lee Ann Rucker wrote: On Jun 22, 2011, at 4:00 PM, Corbin Dunn wrote: On Jun 22, 2011, at 2:15 AM, Lee Ann Rucker wrote: Possibly Radar 5847161 - Tooltip on NSTableView does not appear on newly selected cell Summary: If an NSTableView has a delegate that implements tableView:toolTipForCell:rect:tableColumn:row:mouseLocation:, tooltips will not appear when a cell is selected and the mouse is not moved. Apple's response: NSTableView doesn't know it should update anything, since the mouse has not moved outside of the area it was tracking. Calling updateTrackingAreas should solve the problem. Yeah, that was from me. When did you call -updateTrackingAreas? It should work to reset tracking areas, but also -resetCursorRects might work too. The problem is that there is no way for the table to know that you are returning a different value if you don't move out of the cell frame and back in; it is only called after we get a new tracking area entered message. My reply 3 years ago was --- 14-Apr-2008 02:13 PM Lee Ann Rucker: Not on Tiger, no, as it's a Leopard API, and when should it be called? ... I did try putting it in my tableViewSelectionDidChange: method but it had no effect. --- Never got anything back from that, and that NSTableView has long since been replaced by an NSCollectionView (and I don't care about Tiger anymore either). The table views we are using don't have tooltips. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
If you're writing with the mouse the following might help. It isn't done,
still needs some sort of check in the drawRect method to know when you've drawn
all the segments and you;ll need to adjust x/y values to the view you're
drawing in, but it will get you started.
- (void) mouseDown:(NSEvent *) inEvent
{
// allocate a mutable data to store event points and times
dragPoints = [[NSMutableData alloc] init];
// save fetch time and location of click and store in dragPoints
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint clickPoint = [inEvent locationInWindow];
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseDragged:(NSEvent *) inEvent
{
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint dragPoint = [inEvent locationInWindow];
// write interval and point to dragPoints mutable data object
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseUp:(NSEvent *) inEvent
{
// save the recording, either in memory or to a file
[dragPoints writeToFile: @/path/to/some/file.bin];
[dragPoints release];
}
// In your draw method, you could fetch a timestamp/NSPoint pair from the
recording like so
- (void) drawRect:(NSRect) inRect
{
CGContextRefcontext = [[NSGraphicsContext
currentContext] graphicsPort];
// some instance variable indicating where you are in the recording
int frameOffset =
currentIncrement * (sizeof(NSTimeInterval) + sizeof(NSPoint));
NSTimeInterval time=
*(NSTimeInterval*)[dragPoints bytes] + frameOffset;
NSPoint point =
*(NSPoint*)[dragPoints bytes] + frameOffset + sizeof(NSTimeInterval);
// draw line
CGContextAddLineToPoint(context, point.x, point.y);
// create a new NSTimer with the delay from time variable
[NSTimer scheduledTimerWithTimeInterval: time
target: self
selector: @selector(dearRect:)
userInfo: nil
repeats: NO];
// increment placeholder
currentIncrement++;
}
On Jun 23, 2011, at 5:21 AM, Gustavo Adolfo Pizano wrote:
Hello all.
Im wondering if animating handwriting is somehow possible to do, I
have been looking but I find only how to do it in flash.
Can somebody give me some headlights in the right direction so I can
start digging into?
Thanks a lot.
Gustavo
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Re: Dragging from an NSBrowser to an NSTableView
Look at the datasource API for each view. They both have methods for writing and reading to/from the pasteboard. On 23 Jun 2011, at 09:38, Sandeep Mohan Bhandarkar wrote: Hi All, within my application i have a screen where exists and NSBrowser as well as an NSTableViews. can someone please let me know we can implement dragging items from the browser to the table view. any source reference on this would be very helpful. Thanks in Advance, Sandeep. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
UIScrollView zooming a rotated view
Hi All, I have a UIScrollView that contains a single UIView. I have a couple of buttons in the toolbar that let me rotate the UIView in 90 degree increments. When the rotation is 0, zooming via the pinch mechanism works fine. When the rotation is 90 or 270, zooming via pinch does nothing. When the rotation is 180, zooming via the pinch works 'backwards', that is, what should expand the image, shrinks it and vice versa. I've logged the values of the UIView's transform and I guess the issue is that UIScrollView directly manipulates A and D in this matrix. For rotation = 0, A and B are both 1. For rotation = 90 or 270, A and B are both 0 - hence nothing changes as 0 * x = 0. For rotation = 180, A and B are both -1. Not sure how this results in 'backwards' pinches, though. Is there something I need to do to get the ScrollView to work? Or is it a bug? I thought I have seen apps where you can zoom and rotate with a single gesture- where those views hand coded? Thanks, Brian.___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Helo Ken.
Thanks for answer,
I meant, I have some title string already, and I wish to be able to
animate as if its being written at the moment, also I forgot to
mention that this is for iOS.
Once again thanks for the reply.
I will still check your code and see how maybe I can apply what I
need. Maybe, and for sure I need to get the points of the path to be
done first somehow and then animate the creating of the path.
i dunno.
G.
On Thu, Jun 23, 2011 at 12:34 PM, Ken Tozier kentoz...@comcast.net wrote:
If you're writing with the mouse the following might help. It isn't done,
still needs some sort of check in the drawRect method to know when you've
drawn all the segments and you;ll need to adjust x/y values to the view
you're drawing in, but it will get you started.
- (void) mouseDown:(NSEvent *) inEvent
{
// allocate a mutable data to store event points and times
dragPoints = [[NSMutableData alloc] init];
// save fetch time and location of click and store in dragPoints
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint clickPoint = [inEvent locationInWindow];
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseDragged:(NSEvent *) inEvent
{
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint dragPoint = [inEvent locationInWindow];
// write interval and point to dragPoints mutable data object
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseUp:(NSEvent *) inEvent
{
// save the recording, either in memory or to a file
[dragPoints writeToFile: @/path/to/some/file.bin];
[dragPoints release];
}
// In your draw method, you could fetch a timestamp/NSPoint pair from the
recording like so
- (void) drawRect:(NSRect) inRect
{
CGContextRef context = [[NSGraphicsContext
currentContext] graphicsPort];
// some instance variable indicating where you are in the recording
int frameOffset =
currentIncrement * (sizeof(NSTimeInterval) + sizeof(NSPoint));
NSTimeInterval time =
*(NSTimeInterval*)[dragPoints bytes] + frameOffset;
NSPoint point =
*(NSPoint*)[dragPoints bytes] + frameOffset + sizeof(NSTimeInterval);
// draw line
CGContextAddLineToPoint(context, point.x, point.y);
// create a new NSTimer with the delay from time variable
[NSTimer scheduledTimerWithTimeInterval: time
target: self
selector: @selector(dearRect:)
userInfo: nil
repeats: NO];
// increment placeholder
currentIncrement++;
}
On Jun 23, 2011, at 5:21 AM, Gustavo Adolfo Pizano wrote:
Hello all.
Im wondering if animating handwriting is somehow possible to do, I
have been looking but I find only how to do it in flash.
Can somebody give me some headlights in the right direction so I can
start digging into?
Thanks a lot.
Gustavo
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about tiling images.
Hello all. I have been checking 2010 video about using UIScrollView with images, zooming etc. Thye use CATiledLayer and doing some calculations they now what tile to load depending on the scale, so the performance its quite good and memory usage its as low as possible. Now Im wondering, if I have my app which has a lot of images to display, kinda on the same way the example does, do I have to cut each image in its respective tiles @ their respective scale?, or If so then whats the best approach to do this? Best Regards Gustavo ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Using NSScrollView to scroll Infinitely
I'm running into a problem in 32bit builds with NSScrollView scrolling past the 24 bits of CGFloat (float in 32bit, double in 64bit builds). Is there any way to specify a 'Screen Sized' (ie. float range) documentView and an int64 offset (or something similar), so that my drawing of the documentVisibleRect is always using valid coordinates? ...or am I missing something really basic here?___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Menu item enabling
Hello, I have a submenu of the File menu that gets loaded with menu items on awakeFromNib(). Problem is that the method that does the menu item enabling is not being called on the submenu's items and so they are not enabled. I implemented the validateUserInterfaceItem() method in a class and have set the target of the created menu items to that class. It gets called for every menu item except the one with the submenu. If I expand the submenu it doesn't get called. What am I missing ? Regards Daniel ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFOA2r9aOlrz5+0JdURAj75AJ9caJFWiklpYPCugSc0DkSyn5/ReACggouj F8Ua3YVVIWpGvZ1EDK159FA= =TmNr -END PGP SIGNATURE- ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFOA2r9aOlrz5+0JdURAj75AJ9caJFWiklpYPCugSc0DkSyn5/ReACggouj F8Ua3YVVIWpGvZ1EDK159FA= =TmNr -END PGP SIGNATURE- ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Is this a correct interpretation of what you're trying to do? You have a title string that will be drawn in a handwriting font. You wish to reveal each of the letter strokes over time as if someone were actually writing the title on a piece of paper. On Jun 23, 2011, at 9:45 AM, Gustavo Pizano wrote: Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
YES. :D On Jun 23, 2011, at 7:10 PM, Steve Christensen wrote: Is this a correct interpretation of what you're trying to do? You have a title string that will be drawn in a handwriting font. You wish to reveal each of the letter strokes over time as if someone were actually writing the title on a piece of paper. On Jun 23, 2011, at 9:45 AM, Gustavo Pizano wrote: Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: about tiling images.
Message: 6 Date: Thu, 23 Jun 2011 16:18:25 +0200 From: Gustavo Adolfo Pizano gustavxcodepic...@gmail.com Subject: about tiling images. I have been checking 2010 video about using UIScrollView with images, zooming etc. Thye use CATiledLayer and doing some calculations they now what tile to load depending on the scale, so the performance its quite good and memory usage its as low as possible. Now Im wondering, if I have my app which has a lot of images to display, kinda on the same way the example does, do I have to cut each image in its respective tiles @ their respective scale?, or Yes, that's pretty much the point of the example, isn't it? Think of it this way: what they're saying is, these images are so big you can't even load one on the device. So if you can't load it it on the device, you can't load it and cut it up into rectangles on the device. So it follows as the night the day that you have to cut it up into rectangles beforehand on your computer. Take a look at Apple's PhotoScroller example. m. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Menu item enabling
On Jun 23, 2011, at 10:17 AM, Daniel Luis dos Santos wrote: Hello, I have a submenu of the File menu that gets loaded with menu items on awakeFromNib(). Problem is that the method that does the menu item enabling is not being called on the submenu's items and so they are not enabled. I implemented the validateUserInterfaceItem() method in a class and have set the target of the created menu items to that class. It gets called for every menu item except the one with the submenu. If I expand the submenu it doesn't get called. What am I missing ? That message will be sent to the menu item's target if it implements -validateMenuItem: or -validateUserInterfaceItem: (to be pedantic, they are methods and not functions). Are you sure the target action of the menu items are being set correctly? If the action wasn't set, then they won't be enabled. If the target wasn't set, and nothing in the responder chain implements the action, then they won't be enabled. If the target action were set, then they should be enabled by default, but maybe the target implemented one of those methods and returned NO, which would explain why they're off. Also, did you ensure -autoenablesItems is turned on in the submenu? It should be by default... Nick Zitzmann http://www.chronosnet.com/ ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Cocoa-dev Digest, Vol 8, Issue 462
ken, thanx for your responses. i had already discovered and tried addLocalMonitorForEventsMatchingMask:handler: and as you point out in your second reply, it does not work because live resizing is running its own event loop. overriding sendEvent would work if i detect a mouse down in the resize “box” and run my own event loop but: a) i’m not aware of a documented size for the resize “box”; and b) this would involve my re-implementing all the notifications and method calls associated with live resize drawing, and i don’t really want to have to do this. so… anyone have any other ideas as to how to get called for a modifier key change will in the midst of a live resize? thanx, ken On Jun 23, 2011, at 2:24 AM, Ken Tozier kentoz...@comcast.net wrote: Date: Wed, 22 Jun 2011 17:48:20 -0400 From: Ken Tozier kentoz...@comcast.net Subject: Re: constrained window resizing To: Cocoa Dev List List cocoa-dev@lists.apple.com Message-ID: 93f00017-e4df-4638-9b44-ca558d1ad...@comcast.net Content-Type: text/plain; charset=windows-1252 In NSEvent docs, there's a section on Monitoring Application Events (http://tinyurl.com/6enhj2g) and it looks like there is a flag you can set (explained here: http://tinyurl.com/6jky52c) to receive notifications for this sort of thing On Jun 22, 2011, at 5:21 PM, Ken Victor wrote: i‚ve got a subclass of NSWindow (MagneticWindow) that provides: - (NSSize) windowWillResize: (NSWindow*) sender toSize: (NSSize) frameSize; i use this to provide constrained live resizing of the window, i.e., if the shift key is down, the window will only resize in the horizontal or vertical direction (based on the mouse‚s position relative to where it was at mouse down time), and if the shift and control keys are both down, then the window will maintain its aspect ratio as it is resized. this is all working fine except for one minor point: i don‚t get called if any of the keys change their state (e.g., when the shift is let up) until the user moves the mouse. since the framework is running its own runloop for resizing, i don‚t see how to „hook in‰. and while this class has overridden sendEvent to provide its own runloop for dragging windows around (to provide similar constraining), i don‚t really want to have to do this for resizing as i‚m not sure of all the methods i would have to call to get live resizing drawing working properly. can anyone suggest a way i can get informed when any of the modifier keys change their state while in the midst of live resizing (without requiring mouse movement)? thanx, ken and Date: Wed, 22 Jun 2011 17:15:38 -0500 From: Ken Thomases k...@codeweavers.com Subject: Re: constrained window resizing To: Ken Tozier kentoz...@comcast.net Cc: Cocoa Dev List List cocoa-dev@lists.apple.com Message-ID: de6da287-f4cd-45d6-a743-a31f8e58b...@codeweavers.com Content-Type: text/plain; charset=us-ascii On Jun 22, 2011, at 4:48 PM, Ken Tozier wrote: In NSEvent docs, there's a section on Monitoring Application Events (http://tinyurl.com/6enhj2g) and it looks like there is a flag you can set (explained here: http://tinyurl.com/6jky52c) to receive notifications for this sort of thing I don't think that will work because (from your first link): Your handler will not be called for events that are consumed by nested event-tracking loops such as control tracking, menu tracking, or window dragging; only events that are dispatched through the applications sendEvent: method will be passed to your handler. Window resizing is just such a nested event-tracking loop. (Which is also why the OP's thought of using -sendEvent: wouldn't help either.) Regards, Ken ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
tableView: objectValueForTableColumn: row: method not getting called
Hi All, Any reasons why this method will not get called. Please find below the list of steps that i have taken 1) Connected the dataSource outlet of the Table View to my files owner. 2) Registered the dragTypes for the Table View 3) Did the delegate bindings for the Table 4) Implemented numberOfRowsInTableView: (this is getting called); Have i missed anything else...?? Thanks and Regards, Sandeep. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
On Jun 23, 2011, at 2:23 PM, Sandeep Mohan Bhandarkar wrote: 3) Did the delegate bindings for the Table Do you mean that you set up Cocoa bindings? Generally if you use bindings to the table columns, those are used instead of the data source. You wouldn’t want to do both. (Or do you just mean that you wired up the delegate outlet?) 4) Implemented numberOfRowsInTableView: (this is getting called); Does it return a number greater than zero? If not, there will be no rows. —Jens smime.p7s Description: S/MIME cryptographic signature ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: constrained window resizing
Hi Ken, On Jun 23, 2011, at 4:12 PM, Ken Victor wrote: so… anyone have any other ideas as to how to get called for a modifier key change will in the midst of a live resize? I'm a bit confused as to why this would be helpful? Why is -windowWillResize:toSize: too late for your needs? Your original message said everything was working except you couldn't get the modifier changes, but you didn't explain why that prevents you from doing what you want. That said, you may be able to override -nextEventMatchingMask:untilDate:inMode:dequeue:. Call super, examine the event that was returned to see if it is NSFlagsChanged, and then return it. That is, your override would not reimplement or otherwise interfere with -nextEvent..., it would just monitor what it's returning. Regards, Ken ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
Sandeep Mohan Bhandarkar wrote: Have i missed anything else...?? All the protocol's methods are declared @optional. That means the compiler won't check whether you've spelled your implementation's method-name correctly. I have seen more than one case where it was misspelled, despite an absolute certainty it was correct. -- GG ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
Hi Jens, I have just wired up the delegate outlet and for the second query. The count shows up as zero but will this be the reason for the method not getting called...? Regards, Sandeep. On Jun 23, 2011, at 2:34 PM, Jens Alfke wrote: On Jun 23, 2011, at 2:23 PM, Sandeep Mohan Bhandarkar wrote: 3) Did the delegate bindings for the Table Do you mean that you set up Cocoa bindings? Generally if you use bindings to the table columns, those are used instead of the data source. You wouldn’t want to do both. (Or do you just mean that you wired up the delegate outlet?) 4) Implemented numberOfRowsInTableView: (this is getting called); Does it return a number greater than zero? If not, there will be no rows. —Jens ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
On Jun 23, 2011, at 2:46 PM, Sandeep Mohan Bhandarkar wrote: I have just wired up the delegate outlet and for the second query. The count shows up as zero but will this be the reason for the method not getting called…? Yes. If there aren’t any rows, the table view won’t need to ask for what objects to put in them. —Jens smime.p7s Description: S/MIME cryptographic signature ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
Yeah. checked it out by hardcoding a value of 2 in the rows returned now the method seems to be getting called. Thank you for your assistance jens. Regards, Sandeep. On Jun 23, 2011, at 2:49 PM, Jens Alfke wrote: On Jun 23, 2011, at 2:46 PM, Sandeep Mohan Bhandarkar wrote: I have just wired up the delegate outlet and for the second query. The count shows up as zero but will this be the reason for the method not getting called…? Yes. If there aren’t any rows, the table view won’t need to ask for what objects to put in them. —Jens ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: constrained window resizing
On Jun 23, 2011, at 2:40 PM, Ken Thomases wrote: Hi Ken, On Jun 23, 2011, at 4:12 PM, Ken Victor wrote: so… anyone have any other ideas as to how to get called for a modifier key change will in the midst of a live resize? I'm a bit confused as to why this would be helpful? Why is -windowWillResize:toSize: too late for your needs? Your original message said everything was working except you couldn't get the modifier changes, but you didn't explain why that prevents you from doing what you want. lets say the user had been resizing the window without any modifier keys pressed, but then realized what s/he really wanted was to resize in only one dimension or to maintain the window’s aspect ratio, so now s/he presses either shift or shift and control. i would like to be able to resize the window at this time to show the proper effect, but i can’t do this until the user moves the mouse AFTER changing the modifier keys. That said, you may be able to override -nextEventMatchingMask:untilDate:inMode:dequeue:. Call super, examine the event that was returned to see if it is NSFlagsChanged, and then return it. That is, your override would not reimplement or otherwise interfere with -nextEvent..., it would just monitor what it's returning. two immediate comments though: in the override you suggest, i will have to “or” in the NSFlagsChangedMask to make sure i get the changes as the framework’s event loop may (i don’t know) be only looking for mouse down or mouse moved events. and the framework may be using -nextEventMatchingMask: instead of -nextEventMatchingMask:untilDate:inMode:dequeue: i will experiment and report back. thanx for the suggestion, ken Regards, Ken ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: constrained window resizing
On Jun 23, 2011, at 14:55, Ken Victor wrote: lets say the user had been resizing the window without any modifier keys pressed, but then realized what s/he really wanted was to resize in only one dimension or to maintain the window’s aspect ratio, so now s/he presses either shift or shift and control. i would like to be able to resize the window at this time to show the proper effect, but i can’t do this until the user moves the mouse AFTER changing the modifier keys. Don't overlook the possibility of a low tech solution. How about starting a repeating timer with an interval of (say) 0.1 secs, and checking the flags when the time fires? You'd probably want to debounce the timer by preventing it from triggering another resize when resizing is already in progress, and possibly for a short time afterwards. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Dragging from an NSBrowser to an NSTableView
HI Mike,
we have implemented the following delegate methods in our class for the Table
view and the respective counter parts for NSBrowser have also been added. I
tested by placing break points on these two methods but still was not able to
see them getting hit when the drag and drop was performed.
- (NSDragOperation)tableView:(NSTableView*)aTableView validateDrop:(id
NSDraggingInfo)info proposedRow:(int)row
proposedDropOperation:(NSTableViewDropOperation)op
{
}
- (BOOL)tableView:(NSTableView*)aTableView acceptDrop:(id NSDraggingInfo)info
row:(int)dropRow dropOperation:(NSTableViewDropOperation)op
{
}
PS: The dragTypes for both the browser as well as NSTableView have been set to
NSStringPasteboardType
Please let me know if we are missing something. As of now it would be great if
the control would just flow into these methods.
Thanks in Advance
Sandeep.
On Jun 23, 2011, at 4:03 AM, Mike Abdullah wrote:
Look at the datasource API for each view. They both have methods for writing
and reading to/from the pasteboard.
On 23 Jun 2011, at 09:38, Sandeep Mohan Bhandarkar wrote:
Hi All,
within my application i have a screen where exists and NSBrowser as well as
an NSTableViews. can someone please let me know we can implement dragging
items from the browser to the table view.
any source reference on this would be very helpful.
Thanks in Advance,
Sandeep.
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Re: constrained window resizing
empirically, it appears that the event tracking loop for window resizing is calling -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] so i can’t simply override NSWindow’s matching method in my subclass. thus, while overriding NSApplication’s method is probably doable, i believe it would be “messier” than quincey’s low tech solution, which can be encapsulated in my subclass. i will now give this a try and report back. thanx quincey, ken On Jun 23, 2011, at 3:21 PM, Quincey Morris wrote: On Jun 23, 2011, at 14:55, Ken Victor wrote: lets say the user had been resizing the window without any modifier keys pressed, but then realized what s/he really wanted was to resize in only one dimension or to maintain the window’s aspect ratio, so now s/he presses either shift or shift and control. i would like to be able to resize the window at this time to show the proper effect, but i can’t do this until the user moves the mouse AFTER changing the modifier keys. Don't overlook the possibility of a low tech solution. How about starting a repeating timer with an interval of (say) 0.1 secs, and checking the flags when the time fires? You'd probably want to debounce the timer by preventing it from triggering another resize when resizing is already in progress, and possibly for a short time afterwards. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Add KVO for observing center property from a UIImageView
Hi again.
I have a custom view (say ECGlassView), subclass from UIImageView, and this
view has a subview (say ECNeedleView) that is subclass from UIImageView.
I'm trying to add viewA as observer for viewB center, as I can move viewB above
viewA. When I try to tho this:
[self.needle addObserver:self forKeyPath:@needle.center
options:NSKeyValueObservingOptionNew context:@needleCenter];
the program abort, with the message:
*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason:
'[ECNeedleView 0x8b1cf30 addObserver:ECGlassView 0x8b1bac0
forKeyPath:@needle.center options:0x1 context:0x21eec] was sent to an object
that is not KVC-compliant for the needle property.'
In ECGlassView.h I have:
@interface ECGlassView : UIImageView {
ECNeedleView *needle;
}
@property (nonatomic, assign) ECNeedleView *needle;
@end
And have synthesized needle property in ECGlassView.m file.
Even if I try to declare center property in ECNeedleView.h and synthesize it,
it doesn't work.
What I'm doing wrong?
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Re: Add KVO for observing center property from a UIImageView
On Jun 23, 2011, at 5:27 PM, Tales Pinheiro de Andrade wrote:
Hi again.
I have a custom view (say ECGlassView), subclass from UIImageView, and this
view has a subview (say ECNeedleView) that is subclass from UIImageView.
I'm trying to add viewA as observer for viewB center, as I can move viewB
above viewA. When I try to tho this:
[self.needle addObserver:self forKeyPath:@needle.center
options:NSKeyValueObservingOptionNew context:@needleCenter];
the program abort, with the message:
*** Terminating app due to uncaught exception 'NSUnknownKeyException',
reason: '[ECNeedleView 0x8b1cf30 addObserver:ECGlassView 0x8b1bac0
forKeyPath:@needle.center options:0x1 context:0x21eec] was sent to an
object that is not KVC-compliant for the needle property.'
In ECGlassView.h I have:
@interface ECGlassView : UIImageView {
ECNeedleView *needle;
}
@property (nonatomic, assign) ECNeedleView *needle;
@end
And have synthesized needle property in ECGlassView.m file.
Even if I try to declare center property in ECNeedleView.h and synthesize it,
it doesn't work.
What I'm doing wrong?
The program is attempting to make the object's needle value observe the key
path needle.center, meaning the key path it's trying to observe looks like
self.needle.needle.center from the perspective of your ECGlassView object.
Unless your ECNeedleView has a property also called needle, then that won't
work (and if it did, then it would observe the wrong object). If you drop the
needle from the key path, then it'll probably work.
Nick Zitzmann
http://www.chronosnet.com/
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Re: Menu item enabling
Hello, I thought that by implementing the validation method it wouldn't matter if the menu item has an action set on it. That was the problem. Once I set the action, the validation method started being called. Thanks, Daniel On Jun 23, 2011, at 5:42 PM, Nick Zitzmann wrote: On Jun 23, 2011, at 10:17 AM, Daniel Luis dos Santos wrote: Hello, I have a submenu of the File menu that gets loaded with menu items on awakeFromNib(). Problem is that the method that does the menu item enabling is not being called on the submenu's items and so they are not enabled. I implemented the validateUserInterfaceItem() method in a class and have set the target of the created menu items to that class. It gets called for every menu item except the one with the submenu. If I expand the submenu it doesn't get called. What am I missing ? That message will be sent to the menu item's target if it implements -validateMenuItem: or -validateUserInterfaceItem: (to be pedantic, they are methods and not functions). Are you sure the target action of the menu items are being set correctly? If the action wasn't set, then they won't be enabled. If the target wasn't set, and nothing in the responder chain implements the action, then they won't be enabled. If the target action were set, then they should be enabled by default, but maybe the target implemented one of those methods and returned NO, which would explain why they're off. Also, did you ensure -autoenablesItems is turned on in the submenu? It should be by default... Nick Zitzmann http://www.chronosnet.com/ ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: constrained window resizing
using a timer works just fine. and i don’t believe any “debouncing” is necessary as the timer can’t fire if i am already in the process of resizing. thanx ken and quincey, ken On Jun 23, 2011, at 3:57 PM, Ken Victor wrote: empirically, it appears that the event tracking loop for window resizing is calling -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] so i can’t simply override NSWindow’s matching method in my subclass. thus, while overriding NSApplication’s method is probably doable, i believe it would be “messier” than quincey’s low tech solution, which can be encapsulated in my subclass. i will now give this a try and report back. thanx quincey, ken On Jun 23, 2011, at 3:21 PM, Quincey Morris wrote: On Jun 23, 2011, at 14:55, Ken Victor wrote: lets say the user had been resizing the window without any modifier keys pressed, but then realized what s/he really wanted was to resize in only one dimension or to maintain the window’s aspect ratio, so now s/he presses either shift or shift and control. i would like to be able to resize the window at this time to show the proper effect, but i can’t do this until the user moves the mouse AFTER changing the modifier keys. Don't overlook the possibility of a low tech solution. How about starting a repeating timer with an interval of (say) 0.1 secs, and checking the flags when the time fires? You'd probably want to debounce the timer by preventing it from triggering another resize when resizing is already in progress, and possibly for a short time afterwards. ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: tableView: objectValueForTableColumn: row: method not getting called
On Jun 23, 2011, at 5:49 PM, Jens Alfke wrote: On Jun 23, 2011, at 2:46 PM, Sandeep Mohan Bhandarkar wrote: I have just wired up the delegate outlet and for the second query. The count shows up as zero but will this be the reason for the method not getting called…? Yes. If there aren’t any rows, the table view won’t need to ask for what objects to put in them. This may be happening because of timing of the NIB loading vs the data. make sure to reload the data at the right point (windowDidLoad or after your document does if you’re using documents, there is a special hook for that) ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Coalesced updates and refresh rate
OK, I needed a diversion from serious work and was intrigued to find out how practical it is to animate many instances of an analogue meter and how far you can go with the standard view update mechanism. Think of it as putting my money where my mouth is. I claimed it should be possible to get smooth animation using the standard mechanism if you are careful and play by the rules. So, here's an app project that attempts to do that. http://apptree.net/code/LED3.zip I hope this is reasonably realistic for your particular situation. I have two windows, one which has a bargraph display somewhat like a spectrum analyser and 2 large VU meters, and a second which has 36 smaller instances of the same VU meters. Each of these is an autonomous view, and entirely looks after its own simulation, including the meter ballistics by simulating a RC circuit. These are all animated using a common timer instance running at 30 frames per second. You can opt to set the VU view to be layer backed as well if you want - the four instances on the far left are layer backed and the layer transform is additionally animated. To turn this on, just check the layer backing checkbox in IB - another motivation for this was to get some more experience of using Core Animation - but note that overall I'm not using Core Animation to perform the majority of the animation you see, just a standard timer which updates the view periodically using the standard update mechanism. No threads, no smoke and mirrors. I measured the drawing time for rendering a single VU meter (large) and it settled down to an average of about 220 µS. This is on my fairly up to date mid range Mac - a 27 iMac with 3.2 GHz i3 CPU and ATI Radeon 5670 graphics, 64-bit debugging build. So, your mileage will vary. But at 220µS, I have time to render about 75 instances of the meter in the 16.7mS timeslot available at 60 fps (though I animate these at only 30 fps which seems adequate for fluid movement). The image used to draw the meter background is a PDF and it does not seem to cache this within the NSImage in another form - whether there is some other caching going on behind the scenes I don't know, but the same image is used for all instances, scaled to fit. I also used a common timer for all instances; that did seem to make a difference - having one timer per instance was slower, with a noticeable slowing of the apparent framerate. Is it good enough? I don't know. Maybe 36 instances is far fewer than you have - you can easily add more by simply duplicating them in IB. Maybe your hardware is much slower, and of course, this app is not doing anything else in between frames except going to sleep. A real audio processing app would have much more work to do, but in theory it should have plenty of time to do it. Well, it might give you some starting point or something to compare against. Anyway, it was fun :) --Graham On 15/06/2011, at 11:42 PM, Wolfgang Kundrus wrote: Thanks for taking the time to respond. I am certainly not a newbie, being a Mac programmer since 1987 having brought three major applications with millions of customers to market that all run cross platform. That aside, I am trying to understand, why Cocoa does not flush the graphics, if there has been drawn something to the window with the a method that works well otherwise. I understand coalescing updates and I want to stay away from CGContextFlush as this would cause the application to block, if another flush has to happen. We do use the invalidate/draw wherever appropriate. In this specific base, invalidate does not help, because it is not a simple redraw operation, but rather moving an object by a few pixel without tearing. The other case where we use direct drawing is the potentially hundreds of meter object that need to be updated in a very specific way at a rate that is perceived as fluent. All the best Wolfgang 2011/6/15 Graham Cox graham@bigpond.com On 15/06/2011, at 10:30 PM, Wolfgang Kundrus wrote: We have to update a lot of small onscreen objects and performance is way better, when we travers them outside the Cocoa view tree. If we would use invalidating, we would have to go thru our complete view tree and check for overlaps with the update rect. Does each object have its own view? If so, then that's definitely not a good idea. If not, then there really shouldn't be a problem - checking for overlap with the update rect is a simple matter of a) invalidating the update rect(s) and b) at DRAW time, call [NSView needsToDrawRect:] to test for overlap. Invariably it is drawing that dominates performance for this type of scenario, so a simple YES/NO test of this type is well worthwhile and is very fast. If you have, say 1000 objects that need updating, a linear list of these will probably suffice on a modern machine. If you have more, a spatial hashing scheme such as BSP can give
