获取字体、大小、粗体等 [英] Getting fonts, sizes, bold,...etc

问题描述

我无法找到有关访问 Windows 字体或预定义字体和大小的内容.所以对于我的 java 程序，我有一个带有字体、大小和颜色的 JComboBox.问题是我需要预先输入字体、大小和颜色.我怎样才能获得预定义的字体、颜色和大小?到目前为止，这就是我对这种字体的看法，但它的方式不正确.

 if (font.equals("Arial")) {如果(大小.等于(8")){设置大小 = 8;} else if (size.equals("10")) {设置大小 = 10;} else if (size.equals("12")) {设置大小 = 12;}如果(颜色.等于(黑色")){setColor = Color.BLACK;} else if (color.equals("Blue")) {setColor = Color.BLUE;} else if (color.equals("Red")) {setColor = Color.red;}Font font = new Font("Arial", setAttribute, setSize);Writer.setFont(字体);Writer.setForeground(setColor);

解决方案

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();String[] fonts = ge.getAvailableFontFamilyNames();

可以在运行时设置大小和样式.

例如

import java.awt.*;导入 javax.swing.*;公共类 ShowFonts {公共静态无效主(字符串 [] args){SwingUtilities.invokeLater(() -> {GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();String[] fonts = ge.getAvailableFontFamilyNames();JComboBox fontChooser = new JComboBox(fonts);fontChooser.setRenderer(new FontCellRenderer());JOptionPane.showMessageDialog(null, fontChooser);});}}类 FontCellRenderer 扩展 DefaultListCellRenderer {公共组件 getListCellRendererComponent(JList 列表，对象值，整数索引，布尔值被选中，布尔 cellHasFocus) {JLabel 标签 = (JLabel)super.getListCellRendererComponent(列表、值、索引、isSelected、cellHasFocus)；Font font = new Font(value.toString(), Font.PLAIN, 20);label.setFont(字体);退货标签；}}

JavaDoc

GraphicsEnvironment.getAvailableFontFamilyNames() 部分说明..

<块引用>

返回一个数组，其中包含此 GraphicsEnvironment 中针对默认语言环境本地化的所有字体系列的名称，如 Locale.getDefault()..

<块引用>

另见:

getAllFonts()...

I'm having trouble finding stuff on accessing Windows fonts or predefined fonts, and sizes. So for my java program I have a JComboBox with fonts, sizes, and colors. The problem is that I need to pre-Enter the fonts, sizes and colors. How would I be able to get the predefined fonts, colors, and sizes? So far this is what I have for this font but its not in the correct way.

               if (font.equals("Arial")) {

                if (size.equals("8")) {
                    setSize = 8;
                } else if (size.equals("10")) {
                    setSize = 10;
                } else if (size.equals("12")) {
                    setSize = 12;
                }

                if (color.equals("Black")) {
                    setColor = Color.BLACK;
                } else if (color.equals("Blue")) {
                    setColor = Color.BLUE;
                } else if (color.equals("Red")) {
                    setColor = Color.red;
                }

                Font font = new Font("Arial", setAttribute, setSize);
                Writer.setFont(font);
                Writer.setForeground(setColor);

解决方案

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
String[] fonts = ge.getAvailableFontFamilyNames();

The sizes and styles can be set at run-time.

E.G.

import java.awt.*;
import javax.swing.*;

public class ShowFonts {

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
            String[] fonts = ge.getAvailableFontFamilyNames();
            JComboBox fontChooser = new JComboBox(fonts);
            fontChooser.setRenderer(new FontCellRenderer());
            JOptionPane.showMessageDialog(null, fontChooser);
        });
    }
}

class FontCellRenderer extends DefaultListCellRenderer {

    public Component getListCellRendererComponent(
            JList list,
            Object value,
            int index,
            boolean isSelected,
            boolean cellHasFocus) {
        JLabel label = (JLabel)super.getListCellRendererComponent(
                list,value,index,isSelected,cellHasFocus);
        Font font = new Font(value.toString(), Font.PLAIN, 20);
        label.setFont(font);
        return label;
    }
}

JavaDoc

The JDoc for GraphicsEnvironment.getAvailableFontFamilyNames() state in part..

Returns an array containing the names of all font families in this GraphicsEnvironment localized for the default locale, as returned by Locale.getDefault()..

See also:

getAllFonts()..

这篇关于获取字体、大小、粗体等的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！