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NSButton如何着色文本(NSButton how to color the text)

2019-07-02 19:32发布

站内文章 / 后端开发
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在OSX我有一个NSButton与一个漂亮的暗图像，不幸的是这是不可能改变使用属性检查器颜色。 见图片大的黑色按钮，文本是围棋 。

任何线索了有可能改变文字颜色？ 我看着到NSButton类，但没有方法做到这一点。 I'm知道我能与白色字体的形象，但是这不是我想做的事情。

来自瑞士，罗纳德·霍夫曼问候---

Answer 1:

下面是其他两种解决方案： http://denis-druz.okis.ru/news.534557.Text-Color-in-NSButton.html

溶液1： 

-(void)awakeFromNib
{
    NSColor *color = [NSColor greenColor];
    NSMutableAttributedString *colorTitle = [[NSMutableAttributedString alloc] initWithAttributedString:[button attributedTitle]];
    NSRange titleRange = NSMakeRange(0, [colorTitle length]);
    [colorTitle addAttribute:NSForegroundColorAttributeName value:color range:titleRange];
    [button setAttributedTitle:colorTitle];
}

溶液2：

在* .m文件： 

- (void)setButtonTitleFor:(NSButton*)button toString:(NSString*)title withColor:(NSColor*)color
{
    NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
    [style setAlignment:NSCenterTextAlignment];
    NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:color, NSForegroundColorAttributeName, style, NSParagraphStyleAttributeName, nil];
    NSAttributedString *attrString = [[NSAttributedString alloc]initWithString:title attributes:attrsDictionary];
    [button setAttributedTitle:attrString];
}

-(void)awakeFromNib
{
    NSString *title = @"+Add page";
    NSColor *color = [NSColor greenColor];
    [self setButtonTitleFor:button toString:title withColor:color];
}


Answer 2:

我的解决方案： 

.h

IB_DESIGNABLE
@interface DVButton : NSButton

@property (nonatomic, strong) IBInspectable NSColor *BGColor;
@property (nonatomic, strong) IBInspectable NSColor *TextColor;

@end


.m

@implementation DVButton

- (void)awakeFromNib
{
    if (self.TextColor)
    {
        NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
        [style setAlignment:NSCenterTextAlignment];
        NSDictionary *attrsDictionary  = [NSDictionary dictionaryWithObjectsAndKeys:
                                          self.TextColor, NSForegroundColorAttributeName,
                                          self.font, NSFontAttributeName,
                                          style, NSParagraphStyleAttributeName, nil];
        NSAttributedString *attrString = [[NSAttributedString alloc]initWithString:self.title attributes:attrsDictionary];
        [self setAttributedTitle:attrString];
    }
}


- (void)drawRect:(NSRect)dirtyRect
{
    if (self.BGColor)
    {
        // add a background colour
        [self.BGColor setFill];
        NSRectFill(dirtyRect);
    }

    [super drawRect:dirtyRect];
}

@end

而且这里有一个雨燕3版本： 

import Cocoa

@IBDesignable
class DVButton: NSButton
{
    @IBInspectable var bgColor: NSColor?
    @IBInspectable var textColor: NSColor?

    override func awakeFromNib()
    {
        if let textColor = textColor, let font = font
        {
            let style = NSMutableParagraphStyle()
            style.alignment = .center

            let attributes =
            [
                NSForegroundColorAttributeName: textColor,
                NSFontAttributeName: font,
                NSParagraphStyleAttributeName: style
            ] as [String : Any]

            let attributedTitle = NSAttributedString(string: title, attributes: attributes)
            self.attributedTitle = attributedTitle
        }
    }

    override func draw(_ dirtyRect: NSRect)
    {
        if let bgColor = bgColor
        {
            bgColor.setFill()
            NSRectFill(dirtyRect)
        }

        super.draw(dirtyRect)
    }

}

和雨燕4.0的版本： 

import Cocoa

@IBDesignable
 class Button: NSButton
{
    @IBInspectable var bgColor: NSColor?
    @IBInspectable var textColor: NSColor?

    override func awakeFromNib()
    {
        if let textColor = textColor, let font = font
        {
            let style = NSMutableParagraphStyle()
            style.alignment = .center

            let attributes =
            [
                NSAttributedStringKey.foregroundColor: textColor,
                NSAttributedStringKey.font: font,
                NSAttributedStringKey.paragraphStyle: style
             ] as [NSAttributedStringKey : Any]

            let attributedTitle = NSAttributedString(string: title, attributes: attributes)
            self.attributedTitle = attributedTitle
        }
    }

    override func draw(_ dirtyRect: NSRect)
    {
        if let bgColor = bgColor
        {
            bgColor.setFill()
            __NSRectFill(dirtyRect)
        }

        super.draw(dirtyRect)
    }
}


Answer 3:

苹果有代码用于设置NSButton的文本颜色作为的一部分酥料饼的例子 。

下面是示例性的关键（对于此后，未测试的略微修改）： 

NSButton *button = ...;
NSMutableAttributedString *attrTitle =
    [[NSMutableAttributedString alloc] initWithString:@"Make Me Red"];
NSUInteger len = [attrTitle length];
NSRange range = NSMakeRange(0, len);
[attrTitle addAttribute:NSForegroundColorAttributeName value:[NSColor redColor] range:range];
[attrTitle fixAttributesInRange:range];
[button setAttributedTitle:attrTitle];

需要注意的是调用fixAttributesInRange:似乎是重要的（一个扩展了AppKit），但我无法找到文件， 为什么是这种情况。 我有在NSButton使用归因串的唯一关心的是如果图像也为按钮（诸如图标）所定义的，归因字符串将占据相当大的矩形和图象推到按钮的边缘。 事情要记住。

否则，它似乎是最好的办法就是让自己drawRect:覆盖代替，其中有许多是这个问题的范围之外的其他缺陷。



Answer 4:

这就是我如何得到它斯威夫特4完成

 @IBOutlet weak var myButton: NSButton!

 // create the attributed string
 let myString = "My Button Title"
 let myAttribute = [ NSAttributedStringKey.foregroundColor: NSColor.blue ]
 let myAttrString = NSAttributedString(string: myString, attributes: myAttribute)
 // assign it to the button
 myButton.attributedTitle = myAttrString


Answer 5:

我创建了一个NSButton称为子类FlatButton ，使得它超级容易改变文字颜色在Interface Builder的属性检查器就像你所要求的。 它应该提供一个简单的和广泛的解决您的问题。

这也暴露了其他相关样式属性，如颜色和形状。

你可以在这里找到： https://github.com/OskarGroth/FlatButton



Answer 6:

添加一个类别上NSButton，只是将颜色设置为你想要什么，并preseve现有的属性，因为标题可以居中，左对齐等


@implementation NSButton (NSButton_IDDAppKit)

- (NSColor*)titleTextColor {

    return [NSColor redColor];

}

- (void)setTitleTextColor:(NSColor*)aColor {

    NSMutableAttributedString*  attributedString = [[NSMutableAttributedString alloc] initWithAttributedString:self.attributedTitle];
    NSString*  title = self.title;
    NSRange  range = NSMakeRange(0.0, self.title.length);

    [attributedString addAttribute:NSForegroundColorAttributeName value:aColor range:range];
    [self setAttributedTitle:attributedString];
    [attributedString release];

}

@end


Answer 7:

没有子NSButton一个非常简单的，可重复使用的解决方案： 

[self setButton:self.myButton fontColor:[NSColor whiteColor]] ;

-(void) setButton:(NSButton *)button fontColor:(NSColor *)color {
    NSMutableAttributedString *colorTitle = [[NSMutableAttributedString alloc] initWithAttributedString:[button attributedTitle]];
    [colorTitle addAttribute:NSForegroundColorAttributeName value:color range:NSMakeRange(0, button.attributedTitle.length)];
    [button setAttributedTitle:colorTitle];
}


Answer 8:

NSColor color = NSColor.White;  
NSMutableAttributedString colorTitle = new NSMutableAttributedString (cb.Cell.Title);                
NSRange titleRange = new NSRange (0, (nint)cb.Cell.Title.Length);
colorTitle.AddAttribute (NSStringAttributeKey.ForegroundColor, color, titleRange);      
cb.Cell.AttributedTitle = colorTitle;


Answer 9:

使用上面的信息，我写了一个NSButton扩展，设置前景色，与系统字体和文本对齐一起。

这是斯威夫特上4.x的可可，但可以为iOS很容易地调整。 

import Cocoa

extension NSButton {
    func setAttributes(foreground: NSColor? = nil, fontSize: CGFloat = -1.0, alignment: NSTextAlignment? = nil) {

        var attributes: [NSAttributedStringKey: Any] = [:]

        if let foreground = foreground {
            attributes[NSAttributedStringKey.foregroundColor] = foreground
        }

        if fontSize != -1 {
            attributes[NSAttributedStringKey.font] = NSFont.systemFont(ofSize: fontSize)
        }

        if let alignment = alignment {
            let paragraph = NSMutableParagraphStyle()
            paragraph.alignment = alignment
            attributes[NSAttributedStringKey.paragraphStyle] = paragraph
        }

        let attributed = NSAttributedString(string: self.title, attributes: attributes)
        self.attributedTitle = attributed
    }
}


Answer 10:

当你的目标是MacOS的10.14或更高版本，您可以使用新的tintColor的NSButton控制的属性来设置文本颜色。



Answer 11:

雨燕4.2版本的大卫·博伊德的解决方案

extension NSButton {
func setAttributes(foreground: NSColor? = nil, fontSize: CGFloat = -1.0, alignment: NSTextAlignment? = nil) {

    var attributes: [NSAttributedString.Key: Any] = [:]

    if let foreground = foreground {
        attributes[NSAttributedString.Key.foregroundColor] = foreground
    }

    if fontSize != -1 {
        attributes[NSAttributedString.Key.font] = NSFont.systemFont(ofSize: fontSize)
    }

    if let alignment = alignment {
        let paragraph = NSMutableParagraphStyle()
        paragraph.alignment = alignment
        attributes[NSAttributedString.Key.paragraphStyle] = paragraph
    }

    let attributed = NSAttributedString(string: self.title, attributes: attributes)
    self.attributedTitle = attributed
}

}



文章来源: NSButton how to color the text
标签： objective-c macos nsbutton textcolor
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