I'm using an NSPopover and I'm putting a NSViewController inside to be displayed as a custom view from a NSStatusItem. Most of the view controller displays correctly except for the NSButton that have a corner radius on them. There is some extra white leaking out where the rounded corners are being applied. Displaying the buttons within the actual app, this problem doesn't occur.
I feel it has to do something with the NSPopover appearance which I have set to "NSAppearanceNameAqua".
The NSButtons are within a NSView which are displayed in a NSTableView and are set to this style.
self.createdButton.wantsLayer = true
self.createdButton.layer?.backgroundColor = Utils.blackColor().CGColor
self.createdButton.layer?.masksToBounds = true
self.createdButton.layer?.cornerRadius = 5
The top image is when the actual app is open.
The bottom image is when the view controller is being shown within a NSPopover.
create corner radius using bezier path i.e.
NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:view.bounds xRadius:3 yRadius:3];
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = view.bounds;
maskLayer.path = path.toCGPath;
self.containerView.layer.mask = maskLayer;
Related
I am looking into theming my app by setting window.appearance.
In my app, I draw some stuff inside layers. I also use Core Plot, which renders its charts in layers.
For the default aqua appearance, I just use the system colors (such as NSColor.textColor and NSColor.gridColor) and they are drawn in the correct color in CALayer. But changing the window's appearance to vibrant dark causes colors to be drawn incorrectly.
Is there any way to obtain the correct color for a givenNSAppearance? Private API is acceptable too.
If the question is not clear, here is a very simple example to show the problem.
I set up a CATextLayer that is added as a sublayer of the main view's sublayers and an NSTextFied that is added as a subview:
CATextLayer* textLayer = [CATextLayer new];
textLayer.string = #"Is this colored correctly? (Layer)";
textLayer.foregroundColor = NSColor.textColor.CGColor;
textLayer.contentsScale = 2.0;
textLayer.frame = (CGRect){0,0, [textLayer preferredFrameSize]};
NSTextField* textField = [NSTextField new];
textField.stringValue = #"Is this colored correctly? (View)";
textField.textColor = NSColor.textColor;
textField.font = (__bridge id)textLayer.font;
textField.editable = NO;
textField.selectable = NO;
textField.bezeled = NO;
textField.backgroundColor = nil;
[textField sizeToFit];
textField.frame = (CGRect){0, 60, textField.bounds.size};
[self.view.layer addSublayer:textLayer];
[self.view addSubview:textField];
On an Aqua window, both appear correctly:
However, on a dark vibrant window, the layer does not, while the text field does:
I'd like to know how to get the correct color for a given NSAppearance.
So I had an incorrect approach.
The right way to do it, is to implement -updateLayer in the view and take the colors' CGColor snapshot there. -updateLayer is called when the appearance changes, so the view can update it with the correct color values.
I have two views and a button at the top, i want one be hidden/shown when the button is pressed and for the other views to resize to the edge of the window.
The button on the top left links to an IBAction that hides the lower view with this mainscroll.hidden = true. I can not figure out how to resize/move the other views so the textbox/button are at the bottom of the window, ie no visible gray space at the bottom. I would like to do this programmatically.
http://imgur.com/a/FGH7i
Here is how you can adjust the topView programmatically:
float aHeight = [mainscroll frame].size.height;
NSRect aRect = [topView frame];
aRect.size.height += aHeight;
aRect.origin.y -= aHeight;
[topView setFrame:aRect];
I'm using Xcode 5 to make an UIButton. I made the button in storyboard and set the background image to a .png of a circle with transparency. I set up a simple action for the button to display how many times it was pressed in a label.
When I press the corners of the circle on the screen, it still adds to the score. So the button is still keeping its square hitbox, even though it has a round image as its background. I searched everywhere for a way to make a circular hitbox, but I can't find anything. Is this even possible? Is there an alternative way to do this?
The button responds to touch on corners because the bounding box of the button is a rectangle no matter what image you set for background.
To achieve a circular UIButton you must make a circular bounding box by simply using this code:
- (UIView *)setRoundedView:(UIView *)roundedView toDiameter:(float)newSize {
CGPoint saveCenter = roundedView.center;
CGRect newFrame = CGRectMake(roundedView.frame.origin.x, roundedView.frame.origin.y, newSize, newSize);
roundedView.frame = newFrame;
roundedView.layer.cornerRadius = newSize / 2.0;
roundedView.center = saveCenter;
roundedView.layer.masksToBounds = YES;
return roundedView;
}
In this method you can pass any UIView or subclass of UIView in your case UIButton. So in code you must create an IBOutlet of you button and in your -viewDidLoad method simply put this line of code:
self.btnMyButton = (UIButton *)[self setRoundedView:self.profilePic toDiameter:34];
Assuming you UIButton outlet is btnMyButton and set the diameter as per your requirement.
Hope this helps.
Don't forget to import QuartzCore Framework.
I have a NSView, subclassed, with custom background drawing, filling it with a gradient.
In IB, I've put a checkbox on it, somewhere in the middle.
This is the drawRect method.
-(void) drawRect:(NSRect)dirtyRect {
CGFloat sc = 0.9f;
CGFloat ec = 0.6f;
NSColor* startingColor = [NSColor colorWithDeviceRed:sc green:sc blue:sc alpha:1];
NSColor* endingColor = [NSColor colorWithDeviceRed:ec green:ec blue:ec alpha:1];
NSGradient *grad = [[NSGradient alloc] initWithStartingColor:startingColor endingColor:endingColor];
[grad drawInRect:dirtyRect angle:270];
}
What happens is, this same method gets called to draw the whole view area first and then for the part, where NSButton (checkbox) lies on top of it. OF course the checkbox background is drawn with a complete gradient and it is not right, since the portion is much smaller. The same happens with other controls I put on the said NSView.
What is the suggested approach on such thing?
One option is to make controls height the same as the views' but this will result in problems in the future.
The answer is, always draw the WHOLE area of the view, not just the dirtyRect
[grad drawInRect:[self bounds] angle:270];
I'm attempting to use the new [UINavigationBar appearance] functionality in iOS5 to add a logo image to the UINavigationBars in my application. Primarily, I'd like to keep the default gradient, but center a transparent png in the NavBar. The logo image is roughly 120 pixels wide (240 pixels#2x).
I have first attempted this by setting the background image. The default behavior for setBackgroundImage:forBarMetrics: appears to be to tile the image, and all transparent parts show the default navbar background color, black. I can also set the background color via the appearance modifier, and get a flat color background, but I'd really like to get the original gradient behavior without maintaining a separate image resource for it. It also makes it easier to adjust in code, since I can adjust the tint there, rather than re-generating a new image if I decide to change it.
What I'm trying to use:
UIImage *logoImage = [UIImage imageNamed:#"logoImage"];
[[UINavigationBar appearance] setBackgroundImage:logoImage forBarMetrics:UIBarMetricsDefault];
You can do this two ways. If you want to always have the image in the navigation bar, then create an image view and set it as a subview of the navigation bar:
[self setLogoImageView:[[UIImageView alloc] init]];
[logoImageView setImage:[UIImage imageNamed:#"logo.png"]];
[logoImageView setContentMode:UIViewContentModeScaleAspectFit];
CGRect navFrame = [[navController navigationBar] frame];
float imageViewHeight = navFrame.size.height - 9;
float x_pos = navFrame.origin.x + navFrame.size.width/2 - 111/2;
float y_pos = navFrame.size.height/2 - imageViewHeight/2.0;
CGRect logoFrame = CGRectMake(x_pos, y_pos, 111, imageViewHeight);
[logoImageView setFrame:logoFrame];
[[[self navigationController] navigationBar] addSubview:logoImageView];
If you only want to display the logo in a certain view, then set the view's navigation item:
[logoImageView setAutoresizingMask:UIViewAutoresizingFlexibleHeight];
[[self navigationItem] setTitleView:logoImageView];