Java 我如何更改 JPanel 的字体大小
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How do i change the font size of JPanel
提问by nick zoum
I am trying to create a JPanelwith varying font sizes, without using JLabels.
我正在尝试创建一个JPanel具有不同字体大小的文件，而不使用JLabels.
Below is a representation of what the code looks like.
下面是代码外观的表示。
public class MyPanel extends JPanel{
public MyPanel(string title){
JFrame frame = new JFrame(title);
frame.setExtendedState(Frame.MAXIMIZED_BOTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
public void paintComponent(Graphics graphics){
graphics.drawString("Some Text",100,100);
// Should decrease font size
graphics.drawString("Some Smaller Text",200,200);
// Should increase font size
graphics.drawString("Some Bigger Text",300,300);
}
}
采纳答案by andreban
It looks like you are drawing text directly to the Canvas. To change the font size when drawing with a java.awt.Graphics object, you need to change the current font.
看起来您是直接在画布上绘制文本。要在使用 java.awt.Graphics 对象绘制时更改字体大小，您需要更改当前字体。
For instance:
例如：
public void paint(Graphics g){
Font font = new Font("Verdana", Font.BOLD, 12);
g.setFont(font);
g.drawString("bla bla",150,10);
}
Ideally, you should declare the font object as an instance variable instead of creating a new font every time paint is called.
理想情况下，您应该将字体对象声明为实例变量，而不是每次调用paint 时都创建一个新字体。
回答by Aniruddha Sarkar
add this in void paint() method
将此添加到 void paint() 方法中
float f=20.0f; // font size.
g.setFont(g.getFont().deriveFont(f);
g.drawString("whatever",150,f+10);// provides optimum gap for printing
Done...
完毕...
回答by La VloZ
You can call the method setFont()from you JPaneland give it a Fontas parameter.
Example :
您可以setFont()从您那里调用该方法JPanel并将其Font作为参数。例子 ：
setFont(new java.awt.Font("Century Schoolbook L", 2, 24));
The first argument is the font name, the second is for the style and the last one is for the size.
第一个参数是字体名称，第二个参数是样式，最后一个参数是大小。
