Java-如何在java中写渐变文字?
Java-How to Write Gradient Text in java?
我想在java
中写渐变文本
像这样:-https://i.stack.imgur.com/0qAKt.png
但我不知道该怎么做。
请帮助我!!!!
您将需要使用 Graphics2D 进行绘制,根据 LinearGradientPaint API
使用 LinearGradientPaint 对象设置其 Paint 属性
例如:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.LinearGradientPaint;
import java.awt.Paint;
import java.awt.RenderingHints;
import javax.swing.*;
@SuppressWarnings("serial")
public class GradientText extends JPanel {
private static final int PREF_W = 360;
private static final int PREF_H = 200;
private static final Font FONT = new Font(Font.DIALOG, Font.BOLD, 46);
private static final String TEXT = "This is my text";
private static final int COLOR_COUNT = 30;
private static final Color BG = Color.BLACK;
private Paint myPaint;
public GradientText() {
setBackground(BG);
setPreferredSize(new Dimension(PREF_W, PREF_H));
float[] fractions = new float[COLOR_COUNT];
Color[] colors = new Color[COLOR_COUNT];
for (int i = 0; i < colors.length; i++) {
fractions[i] = ((float)i) / COLOR_COUNT;
float hue = fractions[i];
colors[i] = Color.getHSBColor(hue, 1f, 1f);
}
myPaint = new LinearGradientPaint(0, 0, PREF_W, 0, fractions, colors);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setPaint(myPaint);
g2.setFont(FONT);
g2.drawString(TEXT, 20, 100);
}
private static void createAndShowGui() {
GradientText mainPanel = new GradientText();
JFrame frame = new JFrame("GradientText");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> createAndShowGui());
}
}
在此代码中,使用细分为 30 细分的 hue/saturation/brightness 颜色设置线性绘画对象
我想在java
中写渐变文本像这样:-https://i.stack.imgur.com/0qAKt.png
但我不知道该怎么做。
请帮助我!!!!
您将需要使用 Graphics2D 进行绘制,根据 LinearGradientPaint API
使用 LinearGradientPaint 对象设置其 Paint 属性例如:
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.LinearGradientPaint;
import java.awt.Paint;
import java.awt.RenderingHints;
import javax.swing.*;
@SuppressWarnings("serial")
public class GradientText extends JPanel {
private static final int PREF_W = 360;
private static final int PREF_H = 200;
private static final Font FONT = new Font(Font.DIALOG, Font.BOLD, 46);
private static final String TEXT = "This is my text";
private static final int COLOR_COUNT = 30;
private static final Color BG = Color.BLACK;
private Paint myPaint;
public GradientText() {
setBackground(BG);
setPreferredSize(new Dimension(PREF_W, PREF_H));
float[] fractions = new float[COLOR_COUNT];
Color[] colors = new Color[COLOR_COUNT];
for (int i = 0; i < colors.length; i++) {
fractions[i] = ((float)i) / COLOR_COUNT;
float hue = fractions[i];
colors[i] = Color.getHSBColor(hue, 1f, 1f);
}
myPaint = new LinearGradientPaint(0, 0, PREF_W, 0, fractions, colors);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setPaint(myPaint);
g2.setFont(FONT);
g2.drawString(TEXT, 20, 100);
}
private static void createAndShowGui() {
GradientText mainPanel = new GradientText();
JFrame frame = new JFrame("GradientText");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> createAndShowGui());
}
}
在此代码中,使用细分为 30 细分的 hue/saturation/brightness 颜色设置线性绘画对象