I am trying to change the placeholderText for NSTextField, I am able to set the place holder text but the default color for text is black and I need to change that color. Can someone please guide me as in how to proceed?
Here is my code:
NSString* defaultText = [[NSString alloc] defaultText.c_str() defaultText.length()];
[[textField cell] setPlaceholderString:defaultText];
How to change the color of defaultText?
Related
I want set font on panel and change the selected font. I am using NSColorWell to open and select the color. For font, what can I use? How can I open the font panel and perform action when font panel is closed?
Currently I am using
'- (IBAction)Open_Font_Button:(id)sender
{
NSFontManager *fontManager = [NSFontManager sharedFontManager];
[fontManager setDelegate:self];
[fontManager setTarget:self];
[fontManager orderFrontFontPanel:self];
}
- (void)changeFont:(id)sender
{
font = [sender convertFont:font];
NSLog(#"%#", font);
}
'
but on chnageFont, when I change any font or its size it crashes.
I assume you have outlets to the ColorWell and textField connected:
IBOutlet NSColorWell *colorWell;
IBOutlet NSTextField *textfield;
You should set some things about the NSColorPanel:
[NSColor setIgnoresAlpha:NO];
[[NSColorPanel sharedColorPanel] setShowsAlpha:YES];
When you open or close a window that might display a color panel you should be sure you aren't left with a color panel hanging around:
if ([NSColorPanel sharedColorPanelExists])
{
[[NSColorPanel sharedColorPanel] close];
}
Then in your IBAction method for the color well you can get the color:
NSColor *color;
color = [colorWell color];
You can then set the font and color with:
[textField setFont:anNSFont *];
[textField setTextColor:color];
EDIT:
I just realized you're also asking how to get a new font from the font panel.
To get a new font from the font panel your code should actually work fine unless "font" (the old font) was never initialized. If font is null then [sender convertFont:font] will return null.
This prints null:
- (void)changeFont:(id)sender
{
NSFont *font;
font = [sender convertFont:font]; // Reset the font
NSLog(#"%#", font);
}
This prints a font:
- (void)changeFont:(id)sender
{
NSFont *font = [NSFont fontWithName:#"Helvetica" size:12]; // Initialize the old font
font = [sender convertFont:font]; // Reset the font
NSLog(#"%#", font);
}
I have a custom NSButton, but no matter what i do, the disabled color is always gray
I tried all solutions i came across
i'am setting the attributed string title with white foreground color (i looks like the color attribute is ignored for the disabled state)
i did set [[self cell] setImageDimsWhenDisabled:NO];
event when the documentations states
// When disabled, the image and text of an NSButtonCell are normally dimmed with gray.
// Radio buttons and switches use (imageDimsWhenDisabled == NO) so only their text is dimmed.
#property BOOL imageDimsWhenDisabled;
it doesn't work
My NSButton uses wantsUpdateLayer YES, so the draw methods are overwritten, but i don't understand, where the title is drawn
On OS X 10.9 I've managed to alter the color of the button's text when it's disabled by sub-classing the cell that draws the button.
Create a new NSButtonCell subclass in Xcode and override the following method:
- (NSRect)drawTitle:(NSAttributedString *)title
withFrame:(NSRect)frame
inView:(NSView *)controlView {
NSDictionary *attributes = [title attributesAtIndex:0 effectiveRange:nil];
NSColor *systemDisabled = [NSColor colorWithCatalogName:#"System"
colorName:#"disabledControlTextColor"];
NSColor *buttonTextColor = attributes[NSForegroundColorAttributeName];
if (systemDisabled == buttonTextColor) {
NSMutableDictionary *newAttrs = [attributes mutableCopy];
newAttrs[NSForegroundColorAttributeName] = [NSColor orangeColor];
title = [[NSAttributedString alloc] initWithString:title.string
attributes:newAttrs];
}
return [super drawTitle:title
withFrame:frame
inView:controlView];
}
Select the button in Xcode, then select its cell (maybe easiest to do this in the Interface Builder dock), now got to the Identity Inspector and set the cell's class to that of your subclass.
This is because of the default true value of
- (BOOL)_shouldDrawTextWithDisabledAppearance
Try to change this method instead of imageDimsWhenDisabled. If you are using Swift 4, I would do the following in the Bridging header:
#import <AppKit/AppKit.h>
#interface NSButtonCell (Private)
- (BOOL)_shouldDrawTextWithDisabledAppearance;
#end
And in the subclass of NSButtonCell:
override func _shouldDrawTextWithDisabledAppearance() -> Bool {
return false
}
And that's it: the grey should disappear
I create transparent NSTextField
self.myTextField = [[NSTextField alloc] initWithFrame:CGRectMake(backgroundView.frame.origin.x + backgroundView.frame.size.width + 20, self.projectTitle.frame.origin.y - 30.0, 100, 20)];
self.myTextField.editable = NO;
self.myTextField.bezeled = NO;
self.myTextField.drawsBackground = YES;
self.myTextField.backgroundColor = [NSColor clearColor];
self.myTextField.selectable = NO;
self.myTextField.font = [NSFont fontWithName:#"Helvetica Neue" size:16];
[self addSubview:self.compressingTime];
And as a result text look bad.
If I set background color
self.myTextField.backgroundColor = [NSColor colorWithCalibratedRed:0.85 green:0.85 blue:0.85 alpha:1.0];
everything looks ok
I have also tried with drawsBackground = NO; Do you guys know how to fix this?
The secret is setting ALL THREE of these properties on the NSTextField...
myTextField.bezeled = NO;
myTextField.editable = NO;
myTextField.drawsBackground = NO;
There is a property in the .xib file, on the interface builder window for the text field, under attribute inspector
Check the Display Draws Background
Select a background color. Select clear color for transparent background.
As of 10.12 you can just do:
let label = NSTextField(labelWithString: "HELLO")
Came here looking for this too, and have got the background to give me a transparent grey. Key is to not have a bezel. My code below:
NSTextField *yourLabel = [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, width , height * 1.0/3.0)];
yourLabel.editable = false;
yourLabel.bezeled = false;
[yourLabel setTextColor:[NSColor blackColor]];
[yourLabel setBackgroundColor:[NSColor colorWithRed:0.1 green:0.1 blue:0.1 alpha:0.1]];
For completeness I had got the width and height earlier because they get used many times for layout:
height = self.window.frame.size.height;
width = self.window.frame.size.width;
I ended up using CATextLayer instead NSTextField.
I have same problem. Default appearance is empty. I try set dark mode and it work.
self.nameTextField.appearance = [NSAppearance appearanceNamed:NSAppearanceNameVibrantDark];
I had this problem just now. I fixed it by removing a property named backgroundColor from the NSTextField's superview.
I was using backgroundColor just as a convenience getter/setter for the CALayer properties on an NSView subclass. Although this property isn't documented on NSView, it looks like I had accidentally overridden a property on NSView.
Yay for subclassing! 😒
The clear color will make the current view (ie)NSTextView's background as transparent hence the color of NSView which holds the NSTextView is visible.
so i have a quick question i have the method below which sets the alpha value of a window depending on the value from a slider, however the content of the window also becomes translucent and eventually disappears with the window.
Is there a way to just change the alpha value of the window and not the content view inside it?
- (IBAction)changeTransparency:(id)sender {
// Set the window's alpha value. This will cause the views in the window to redraw.
[self.window setAlphaValue:[sender floatValue]];}
Thanks, Sami.
Apple's docs gives a way to do this. The key is to set the window's backgroundColor's alpha to the desired value. You must also make sure to set the window's opaque property to NO (which is YES by default.)
e.x.
// At some point in your code...
[window setOpaque:NO];
// Then in your changeTransparency: method...
NSColor *backgroundColor = [window backgroundColor];
backgroundColor = [backgroundColor colorWithAlphaComponent:[sender floatValue]];
[window setBackgroundColor:backgroundColor];
Here is another way.
Suppose,
self.window <--- base view and this alpha will be changed (but exacatly fake).
subView1, subView2 <-- these views are contents of self.window. and theier alpha should not be changed.
self.window.backgroundColor = [UIColor clearColor];
UIView* anAlphaView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.window.frame.size.widht, self.window.frame.size.height)];
anAlphaView.backgroundColor = [UIColor blackColor]; // as you want
anAlphaView.alpha = 0.5f; // as you want.
[self.window addSubview:anAlphaView];
[anAlphaView release];
[self.window addSubview:subView1]; // you should add sub views to self.window
[self.window addSubview:subView2];
You can make a method using above code :)
I am displaying buttons in NSMatrix.
My requirement is:
to change color of button title and
place an image at beginning of title, when certain condition is satisfied.
To do so, I used following code:
// setting attributed text
NSAttributedString *selectedCellAttribute;
NSFont *selectedCellFont = [NSFont fontWithName:#"Lucida Grande" size:11];
NSColor *selectedCellColor = [NSColor redColor];
NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
[style setAlignment:NSCenterTextAlignment];
// setting image
NSTextAttachment *imageAttachment = [[NSTextAttachment alloc] init];
NSCell *cell = [imageAttachment attachmentCell];
[cell setImage:[NSImage imageNamed:#"caution_small.png"]];
NSDictionary *selectedCellDictionary = [NSDictionary dictionaryWithObjectsAndKeys:imageAttachment,NSAttachmentAttributeName,selectedCellFont,NSFontAttributeName,selectedCellColor,NSForegroundColorAttributeName,style,NSParagraphStyleAttributeName,nil];
// recognizing cell
NSButtonCell *associatedCell = [associatesMatrix cellAtRow:0 column:2];
selectedCellAttribute = [[NSAttributedString alloc] initWithString:[associatedCell title] attributes:selectedCellDictionary];
[associatedCell setAttributedTitle:selectedCellAttribute];
Although above code is showing change in color of title, it is showing no image placed in beginning of title :(
Can anyone suggest me where I may be wrong or some other method to implement my requirements?
EDIT:
At line:
NSCell *cell = [imageAttachment attachmentCell];
it is giving this warning when compiled:
type 'id <NSTextAttachmentCell>' does not conform to 'NSCopying" protocol.
Thanks,
Miraaj
You've set the attachment for the entire string. What you need to do is prefix the string with NSAttachmentCharacter, and set the attachment only for that section of the string.
You may want to put a space between the NSAttachmentCharacter and your actual text. Only the NSAttachmentCharacter should have the attachment attribute.