Hello I need to implement four views splitters like in Maya, 3ds max, Blender or other similar modeling tools. I use NSSplitView on Mac side of my editor and I need to know when user drags one pane to sync another pane.
Is there any way to get new size from one NSSplitView and sync another view to it? I have working code for Windows Forms in C# version of this editor, but I can't figure out how to do it on a Mac. Full source code is at http://github.com/filipkunc/opengl-editor-cocoa.
Thanks a lot.
I fixed it with this code:
- (void)splitViewDidResizeSubviews:(NSNotification *)notification
{
NSSplitView *splitView = (NSSplitView *)[notification object];
NSView *topSubview0 = (NSView *)[[topSplit subviews] objectAtIndex:0];
NSView *topSubview1 = (NSView *)[[topSplit subviews] objectAtIndex:1];
NSView *bottomSubview0 = (NSView *)[[bottomSplit subviews] objectAtIndex:0];
NSView *bottomSubview1 = (NSView *)[[bottomSplit subviews] objectAtIndex:1];
if (fabsf([bottomSubview0 frame].size.width - [topSubview0 frame].size.width) >= 1.0f)
{
if (splitView == topSplit)
{
NSLog(#"topSplit");
[bottomSubview0 setFrame:[topSubview0 frame]];
[bottomSubview1 setFrame:[topSubview1 frame]];
}
else
{
NSLog(#"bottomSplit");
[topSubview0 setFrame:[bottomSubview0 frame]];
[topSubview1 setFrame:[bottomSubview1 frame]];
}
}
}
Related
I'm new to Cocoa development on the Mac, and I'm having issues creating a draggable NSView subclass, despite having followed many different guides, including the main Apple docs on custom views.
The code I've implemented so far is:
-(void)mouseDown:(NSEvent *) e {
[[NSCursor closedHandCursor] push];
self.lastDragLocation = [e locationInWindow];
}
-(void)mouseDragged:(NSEvent *)event {
NSView* superView = [self superview];
NSPoint currentOrigin = self.lastDragLocation;
NSRect currentFrame = [self frame];
NSPoint nextOrigin = NSMakePoint(currentOrigin.x + [event deltaX],
currentOrigin.y + ([event deltaY] *
([superView isFlipped] ? 1 : -1))
);
[self setFrameOrigin:nextOrigin];
[self autoscroll:event];
[superView setNeedsDisplayInRect:NSUnionRect(currentFrame, [self frame])];
self.lastDragLocation = nextOrigin;
}
-(void)mouseUp:(NSEvent*)event {
[NSCursor pop];
[[self window] invalidateCursorRectsForView:self];
}
Everything seems to work when I drag the view, but when I stop moving or release the mouse, the view snaps back to the original origin. When this happens during a drag, subsequent drag events set the view back to the right place, only to repeat the issue.
Incidentally, this is XCode 5.0 running on Mountain Lion.
In my app I change the position of the standardWindowButtons close / miniturize / expand like so:
//Create the buttons
NSButton *minitButton = [NSWindow standardWindowButton:NSWindowMiniaturizeButton forStyleMask:window.styleMask];
NSButton *closeButton = [NSWindow standardWindowButton:NSWindowCloseButton forStyleMask:window.styleMask];
NSButton *fullScreenButton = [NSWindow standardWindowButton:NSWindowZoomButton forStyleMask:window.styleMask];
//set their location
[closeButton setFrame:CGRectMake(7+70, window.frame.size.height - 22 - 52, closeButton.frame.size.width, closeButton.frame.size.height)];
[fullScreenButton setFrame:CGRectMake(47+70, window.frame.size.height - 22 -52, fullScreenButton.frame.size.width, fullScreenButton.frame.size.height)];
[minitButton setFrame:CGRectMake(27+70, window.frame.size.height - 22 - 52, minitButton.frame.size.width, minitButton.frame.size.height)];
//add them to the window
[window.contentView addSubview:closeButton];
[window.contentView addSubview:fullScreenButton];
[window.contentView addSubview:minitButton];
Now when the window appears with the buttons there is two problems:
1. They are grey and not their correct color
2. when the mouse is over them they do not show the + - or x sign
can anyone tell me what I am doing wrong. Thanks.
Here is the mechanics of this hover magic: Before drawing itself standard circled button (such as NSWindowMiniaturizeButton) calls their superview undocumented method _mouseInGroup:. If this method returns YES circled button draws itself with icon inside. That's all.
If you place these buttons inside your own view, you can simply implement this method and control this mouse-hover-appearance as you want. If you just move or relayout these buttons and they still be subviews of NSThemeFrame (or something similar), you have to swizzle method _mouseInGroup: for this class, and probably it doesn't worth it because we have perfectly simple previous method.
In my case I have custom NSView that contains my standard buttons as subviews and this code makes all described above magic:
- (void)updateTrackingAreas
{
NSTrackingArea *const trackingArea = [[NSTrackingArea alloc] initWithRect:NSZeroRect options:(NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways | NSTrackingInVisibleRect) owner:self userInfo:nil];
[self addTrackingArea:trackingArea];
}
- (void)mouseEntered:(NSEvent *)event
{
[super mouseEntered:event];
self.mouseInside = YES;
[self setNeedsDisplayForStandardWindowButtons];
}
- (void)mouseExited:(NSEvent *)event
{
[super mouseExited:event];
self.mouseInside = NO;
[self setNeedsDisplayForStandardWindowButtons];
}
- (BOOL)_mouseInGroup:(NSButton *)button
{
return self.mouseInside;
}
- (void)setNeedsDisplayForStandardWindowButtons
{
[self.closeButtonView setNeedsDisplay];
[self.miniaturizeButtonView setNeedsDisplay];
[self.zoomButtonView setNeedsDisplay];
}
I'm fully aware that this question is old and Valentin Shergin's answer is correct. It prevents the utilize of any Private API, unlike Google did in Chrome. Just wanted to share a method for those who don't feel like subclass NSView just to put those buttons in an existed view (such as self.window.contentView).
As I just wanted to reposition the NSWindowButtons via setFrame:, I found out that once the window was resized, the tracking areas seems to "fix" themselves automagically, without any Private API usage (at least in 10.11).
Thus, you can do things like the following to apply "fake resize" to the window that you repositioned your buttons:
NSRect frame = [self.window frame];
frame.size = NSMakeSize(frame.size.width, frame.size.height+1.f);
[self.window setFrame:frame display:NO animate:NO];
frame.size = NSMakeSize(frame.size.width, frame.size.height-1.f);
[self.window setFrame:frame display:NO animate:YES];
(I did it within my main window's NSWindowDelegate windowDidBecomeMain:. Should work as long as the window is loaded and visible.)
You're not adding them again. You're moving them to contentView. The buttons are originally in window.contentView.superview.
[window.contentView.superview addSubview:closeButton];
[window.contentView.superview addSubview:fullScreenButton];
[window.contentView.superview addSubview:minitButton];
Should get you the correct behaviour without requiring a trackingArea.
Call [button highlight:yes] for each button.
I want to add functionality to my back buttons through my UINavigationController-based app where long-pressing the back button will pop to root. However, I can't figure out where to attach the gesture recognizer. Do I subclass UINavigationBar and try and detect if the long press is in the left button region?
I've heard of people adding similar functionality before. Anyone have any ideas?
I know this question is old, but I came up with a solution. Instead of trying to add the gesture recognizer to the button itself (which would be ideal), I added it to the self.navigationController.navigationBar and then in the action method, use the locationInView to see if I'm over the back button. I wasn't entirely sure about how to identify the back button precisely, so I'm clumsily just grabbing the the first subview with an x coordinate less than some arbitrary value, but it seems promising. If someone has a better way to identify the frame of the back button, let me know.
- (void)longPress:(UILongPressGestureRecognizer *)sender
{
if (sender.state == UIGestureRecognizerStateEnded)
{
// set a default rectangle in case we don't find the back button for some reason
CGRect rect = CGRectMake(0, 0, 100, 40);
// iterate through the subviews looking for something that looks like it might be the right location to be the back button
for (UIView *subview in self.navigationController.navigationBar.subviews)
{
if (subview.frame.origin.x < 30)
{
rect = subview.frame;
break;
}
}
// ok, let's get the point of the long press
CGPoint longPressPoint = [sender locationInView:self.navigationController.navigationBar];
// if the long press point in the rectangle then do whatever
if (CGRectContainsPoint(rect, longPressPoint))
[self doWhatever];
}
}
- (void)addLongPressGesture
{
if (NSClassFromString(#"UILongPressGestureRecognizer"))
{
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(longPress:)];
[self.navigationController.navigationBar addGestureRecognizer:longPress];
[longPress release];
}
}
I believe UIGestureRecognizers can only be added to UIViews and subclasses of UIViews.
http://developer.apple.com/library/ios/#documentation/uikit/reference/UIView_Class/UIView/UIView.html
The back button is a UIBarButtonItem that descends from NSObject. Therefore, you won't be able to attach a gesture recognizer to a standard back button using
UILongPressGestureRecognizer *longPressGesture =
[[[UILongPressGestureRecognizer alloc]
initWithTarget:self action:#selector(longPress:)] autorelease];
[self.navigationItem.backBarButtonItem addGestureRecognizer:longPressGesture];
You can however add a custom view to a UIBarButtonItem. A custom view could just as easily be a UIView, UIButton, UILabel, etc.
Example:
UIView *myTransparentGestureView = [[UIView alloc] initWithFrame:CGRectMake(0,0,40,30)];
[myTransparentGestureView addGestureRecognizer:longPressGesture];
[self.navigationItem.backBarButtonItem setCustomView:myTransparentGestureView];
// Or you could set it like this
// self.navigationItem.backBarButtonItem.customView = myTransparentGestureView;
[myTransparentGestureView release];
You have to be careful however, since setting properties on backBarButtonItem applies to the next view that you push. So if you have view A that pushes to view B and you want the gesture to be recognized when you tap back in view B. You must set it up in view A.
I followed a slightly different path, figured I'd share it. The above answers are fine, but really, if the long press is in the leading 1/3 of the nav bar, that's good enough for me:
- (void)longPress:(UILongPressGestureRecognizer *)gr
{
NSLog(#"longPress:");
UINavigationBar *navBar = [self navigationBar];
CGFloat height = navBar.bounds.size.height;
CGPoint pt = [gr locationOfTouch:0 inView:navBar];
//NSLog(#"PT=%# height=%f", NSStringFromCGPoint(pt), height);
if(CGRectContainsPoint(CGRectMake(0,0,100,height), pt)) {
[self popToViewController:self.viewControllers[0] animated:YES];
}
}
Here's my solution:
In appDelegate (the "owner" of the nav bar in my app), In applicationDidFinishLaunchingWithOptions:
Get the nav bar view and add the gesture recognizer to the whole view:
// Get the nav bar view
UINavigationBar *myNavBar = nil;
for (UIView *view in [self.window.rootViewController.view subviews]) {
if ([view isKindOfClass:[UINavigationBar class]]) {
NSLog(#"Found Nav Bar!!!");
myNavBar = (UINavigationBar *)view;
}
}
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self
action:#selector(backButtonLongPress:)];
[myNavBar addGestureRecognizer:longPress];
NSLog(#"Gesture Recognizer Added.");
Then in appDelegate, in -(void) backButtonLongPress:(id) sender
Check to see if the gesture occurs within the frame of the back button:
if ([sender state] == UIGestureRecognizerStateBegan) {
// Get the nav bar view
UINavigationBar *myNavBar = nil;
for (UIView *view in [self.window.rootViewController.view subviews]) {
if ([view isKindOfClass:[UINavigationBar class]]) {
NSLog(#"Found Nav Bar!!!");
myNavBar = (UINavigationBar *)view;
}
}
// Get the back button view
UIView *backButtonView = nil;
for (UIView *view in [myNavBar subviews]) {
if ([[[view class] description] isEqualToString:#"UINavigationItemButtonView"]) {
backButtonView = view;
NSLog(#"Found It: %#", backButtonView);
NSLog(#"Back Button View Frame: %f, %f; %f, %f", backButtonView.frame.origin.x, backButtonView.frame.origin.y, backButtonView.frame.size.width, backButtonView.frame.size.height);
}
}
CGPoint longPressPoint = [sender locationInView:myNavBar];
NSLog(#"Touch is in back button: %#", CGRectContainsPoint(backButtonView.frame, longPressPoint) ? #"YES" : #"NO");
if (CGRectContainsPoint(backButtonView.frame, longPressPoint)) {
// Place your action here
}
// Do nothing if outside the back button frame
}
This site really is awesome.
I have what is hopefully a simple question this time. I would like to pass any scrolling input from the user (could be wheel, touchpad, etc) to an NSScrollView which contains my own subviews.
At the moment if the user scrolls just on the documentView (outside of my subviews' frames) the scroll works normally but if they scroll while the cursor is over a subview nothing happens. So basically I'd like to have the subview recognise the scroll event and pass it back to the scroll view.
Any help is greatly appreciated.
Cheers.
EDIT:
Here is the code I'm using to add the subviews to the documentView
_milestoneView and _activityView are both NSView subclasses which have a corresponding nib (created with instantiateNibWithOwner and objects hooked up accordingly) they contain a NSTextField, PXListView and some have a NSProgressIndicator.
-(void)useProject:(NSNumber *)projectId
{
[self resetView];
NSRect bounds = [[self view] bounds];
NSRect defaultFrame = NSMakeRect(20, NSMaxY(bounds)-93, NSMaxX(bounds)-20, 50);
//Prepare the milestone view
if (_milestoneView == nil)
_milestoneView = [MilestoneView milestoneViewFromNibWithFrame:defaultFrame withProject:[BCLocalFetch projectForId:projectId]];
[_milestoneView reloadList];
//Prepare the activity view
if (_activityView == nil)
_activityView = [ActivityView activityViewFromNibWithFrame:defaultFrame withProject:[BCLocalFetch projectForId:projectId]];
[self refresh];
}
I then use the refresh method to reposition them as the content sizes vary so I wanted to have a separate method.
-(void)refresh
{
//Position the milestones first
[_milestoneView setFrameOrigin:NSMakePoint(20, NSMaxY([[self view] bounds])-[_milestoneView frame].size.height-60)];
if ([[_milestoneView milestones] count] > 0)
[[self view] addSubview:_milestoneView];
//Now the activity view
[_activityView setFrameOrigin:NSMakePoint(20, [_milestoneView frame].origin.y-[_activityView frame].size.height-20)];
[[self view] addSubview:_activityView];
[self autosizeView];
}
-(void)autosizeView
{
//Resize the view to accommodate all subviews
NSRect oldFrame = [[self view] frame];
CGFloat lastY = [_activityView frame].origin.y;
if (lastY < 0) {
CGFloat newHeight = oldFrame.size.height + (-lastY);
[[self view] setFrameSize:NSMakeSize(oldFrame.size.width, newHeight)];
}
[[NSNotificationCenter defaultCenter] postNotificationName:#"BBContentDidResizeNotification" object:self];
}
Ok so I came back to the issue and finally got it worked out. The implementation was actually quite simple.
I added a property to PXListView to point to the NSScrollView that is to be scrolled.
I then implemented NSResponder's scrollWheel: method like this:
-(void)scrollWheel:(NSEvent *)theEvent
{
//Pass scrolling to the superview
[_scrollHandler scrollWheel:theEvent];
}
And all is well!
In my application, NSOutlineView used as below,
1 -- Using CustomOutlineView because i want to control NSOutlineView Background,
2 -- Using CustomeCell, becuase i need to have customize Cell
Header File : MyListView.h
/*
MyUICustomView is the Subclass from NSView and this is i need to have
for some other my application purpose
*/
#interface MyListView : MyUICustomView<NSOutlineViewDataSource>
{
// MyCustomOutlineview because, i need to override DrawRect Method to have
// customized background
MyCustomOutlineView *pMyOutlineView;
}
#property(nonatomic,retain)MyCustomOutlineView *pMyOutlineView;
and also i should be able to drag-n-drop within Outline view,
for having drag-n-drop i have done following,
-(void)InitOutlineView{
// Creating outline view
NSRect scrollFrame = [self bounds];
NSScrollView* scrollView = [[[NSScrollView alloc] initWithFrame:scrollFrame] autorelease];
[scrollView setBorderType:NSNoBorder];
[scrollView setHasVerticalScroller:YES];
[scrollView setHasHorizontalScroller:NO];
[scrollView setAutohidesScrollers:YES];
[scrollView setDrawsBackground: NO];
NSRect clipViewBounds = [[scrollView contentView] bounds];
pMyOutlineView = [[[MyCustomOutlineView alloc] initWithFrame:clipViewBounds] autorelease];
NSTableColumn* firstColumn = [[[NSTableColumn alloc] initWithIdentifier:#"firstColumn"] autorelease];
#ifdef ENABLE_CUSTOM_CELL
// Becuase cell should have Image, Header Info and brief detail in small font,
// so i need to have custom cell
ImageTextCell *pCell = [[ImageTextCell alloc]init];
[firstColumn setDataCell:pCell];
// SO i can fill the data
[pCell setDataDelegate:self];
# endif
[pMyOutlineView setDataSource:self];
/* This is to tell MyCustomOutlineView to handle the context menu */
[pMyOutlineView setDataDelegate:self];
[scrollView setDocumentView:pCTOutlineView];
[pMyOutlineView addTableColumn:firstColumn];
[pMyOutlineView registerForDraggedTypes:
[NSArray arrayWithObjects:OutlinePrivateTableViewDataType,nil]];
[pMyOutlineView setDraggingSourceOperationMask:NSDragOperationEvery forLocal:YES];**
}
and to Support drag-n-drop Implemented following method
- (BOOL)outlineView:(NSOutlineView *)outlineView writeItems:(NSArray *)items toPasteboard:(NSPasteboard *)pboard{
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:items];
[pboard declareTypes:[NSArray arrayWithObject:OutlinePrivateTableViewDataType] owner:self];
[pboard setData:data forType:OutlinePrivateTableViewDataType];
return YES;
}
- (NSDragOperation)outlineView:(NSOutlineView *)outlineView validateDrop:(id < NSDraggingInfo >)info proposedItem:(id)item proposedChildIndex:(NSInteger)index{
// Add code here to validate the drop
NSLog(#"validate Drop");
return NSDragOperationEvery;
}
- (BOOL)outlineView:(NSOutlineView *)outlineView acceptDrop:(id < NSDraggingInfo >)info item:(id)item childIndex:(NSInteger)index{
NSLog(#"validate Drop");
}
but still when i try to drag the row of NSOutlineView nothing is happening, even i tried to debug via NSLog but i couldn't see any log from above function,
Am i missing any important method ?
to support Drag-n-drop
Based on your code, it looks like you're not returning anything for the ...writeItems... method. This method is supposed to return a BOOL (whether the items were successfully written or you're denying the drag). Returning nothing should be giving you a compiler warning ...
HI,
FInally got able to rid of this,
The problem is
[firstColumn setWidth:25];
So drag was working only upto 25 pixel form the left, and i commented this, then its working time, but strange to see, my outline view has only one column , for drawing, its not checking the restriction but for drag-n-drop its checking,
Thanks Joshua