Java Swing - 创建类似标签的动态宽度按钮 [英] Java Swing - creating tag-like dynamic width buttons
本文介绍了Java Swing - 创建类似标签的动态宽度按钮的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用桌面GUI设计迈出第一步。我想要实现的是在一个表列中显示。我希望它们具有视觉吸引力，也可以点击。
首先，我认为可以用JButton做一些黑客攻击，如建议由自己的camrik和 SwingLabs，SwingX库
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.LinearGradientPaint;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Path2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.AbstractButton;
import javax.swing.DefaultButtonModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;
import javax.swing.border.MatteBorder;
import org.jdesktop.swingx。*;
公共类TestTagButton {
public static void main（String [] args）{
new TestTagButton（）;
}
public TestTagButton（）{
EventQueue.invokeLater（new Runnable（）{
@Override
public void run（）{
try {
UIManager.setLookAndFeel（UIManager.getSystemLookAndFeelClassName（））;
} catch（ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex）{
}
JPanel wordsPane = new JPanel（new VerticalLayout（））;
wordsPane.setBackground（Color.WHITE）;
Word word = new Word（Hand）;
word.addTag（ body parts，55）;
List< String> translations = new ArrayList<>（3）;
translations.add（Reka）;
translations.add（Dion ）;
translations.add（Garsec）;
wordsPane.add（new WordGroupPane（word，translat）离子））;
word = new Word（Roof）;
word.addTag（house，17）;
word.addTag（architecture，8）;
translations = new ArrayList<>（3）;
translations.add（Dach）;
translations.add（Zadaszenie）;
wordsPane.add（new WordGroupPane（word，translations））;
JFrame frame = new JFrame（Testing）;
frame.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）;
frame.setLayout（new BorderLayout（））;
// frame.add（new JScrollPane（wordsPane））;
frame.add（wordsPane）;
frame.pack（）;
frame.setLocationRelativeTo（null）;
frame.setVisible（true）;
}
}）;
}
公共静态类WordGroupPane扩展JPanel {
public WordGroupPane（Word word，List< String> translations）{
setOpaque（false）;
setLayout（new GridLayout（0,2））;
add（new WordPane（word））;
add（new TranslationsPane（translations））;
}
}
公共静态类TranslationsPane扩展JPanel {
protected static final Border SPLIT_BORDER = new MatteBorder（0,0， 1,0，Color.GRAY）;
public TranslationsPane（List< String> translations）{
setOpaque（false）;
setLayout（new GridLayout（0,1））;
for（字符串翻译：翻译）{
JLabel lbl = new JLabel（翻译）;
lbl.setHorizontalAlignment（JLabel.LEFT）;
lbl.setBorder（SPLIT_BORDER）;
add（lbl）;
}
}
}
公共静态类WordPane扩展JPanel {
public WordPane（Word word）{
setBorder（new MatteBorder（0,0,1,1，Color.GRAY））;
setOpaque（false）;
setLayout（new GridBagLayout（））;
GridBagConstraints gbc = new GridBagConstraints（）;
gbc.gridx = 0;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.NORTH;
gbc.insets = new Insets（10,8,10,8）;
JLabel label = new JLabel（word.getWord（））;
add（label，gbc）;
gbc.gridx = 1;
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets（0,0,0,0）;
JPanel tagsPane = new JPanel（new WrapLayout（WrapLayout.LEFT））;
tagsPane.setOpaque（false）;
for（Tag tag：word.getTags（））{
TagButton tb = new TagButton（tag.getText（））;
Font font = tb.getFont（）;
font = font.deriveFont（font.getSize（） - 3f）;
tb.setFont（font）;
tb.setTag（Integer.toString（tag.getCount（）））;
tb.setSelected（true）;
tagsPane.add（tb）;
}
add（tagsPane，gbc）;
}
}
公共类Word {
private String word;
private List< Tag>标签;
public Word（String word）{
this.word = word;
this.tags = new ArrayList<>（25）;
}
public void addTag（String text，int count）{
addTag（new Tag（text，count））;
}
public String getWord（）{
return word;
}
public List< Tag> getTags（）{
返回标签;
}
public void addTag（Tag tag）{
tags.add（tag）;
}
}
公共类标签{
私有字符串文本;
private int count;
public Tag（String text，int count）{
this.text = text;
this.count = count;
}
public String getText（）{
return text;
}
public int getCount（）{
return count;
}
}
公共静态类TagButton扩展AbstractButton {
私有JLabel渲染器;
private String tag;
public TagButton（String text）{
this（）;
setText（text）;
}
public TagButton（）{
setModel（new DefaultButtonModel（））;
setMargin（new Insets（8,8,8,8））;
addMouseListener（new MouseAdapter（）{
@Override
public void mousePressed（MouseEvent e）{
getModel（）。setPressed（true）;
}
@Override
public void mouseReleased（MouseEvent e）{
getModel（）。setPressed（false）;
getModel（）。setSelected（！isSelected（） ）;
}
}）;
setFont（UIManager.getFont（Button.font））;
}
public void setTag（String value）{
if（tag == null？value！= null：！tag.equals（value））{
String old = tag;
tag = value;
firePropertyChange（tag，old，tag）;
revalidate（）;
}
}
public String getTag（）{
return tag;
}
protected JLabel getRenderer（）{
if（renderer == null）{
renderer = new JLabel（getText（ ））;
}
返回渲染器;
}
@Override
public Dimension getPreferredSize（）{
Insets margin = getMargin（）;
尺寸大小=新尺寸（）;
size.width = margin.left + margin.right;
size.height = margin.top + margin.bottom;
JLabel renderer = getRenderer（）;
renderer.setText（getText（））;
size.width + = renderer.getPreferredSize（）。width;
size.height + = renderer.getPreferredSize（）。height;
size.width + = getTagWidth（）;
返回大小;
}
protected int getTagWidth（）{
JLabel renderer = getRenderer（）;
renderer.setText（getTag（））;
renderer.setFont（getFont（））;
返回renderer.getPreferredSize（）。width + 16;
}
@Override
protected void paintComponent（Graphics g）{
super.paintComponent（g）;
Graphics2D g2d =（Graphics2D）g.create（）;
g2d.setRenderingHint（RenderingHints.KEY_ALPHA_INTERPOLATION，RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY）;
g2d.setRenderingHint（RenderingHints.KEY_ANTIALIASING，RenderingHints.VALUE_ANTIALIAS_ON）;
g2d.setRenderingHint（RenderingHints.KEY_COLOR_RENDERING，RenderingHints.VALUE_COLOR_RENDER_QUALITY）;
g2d.setRenderingHint（RenderingHints.KEY_DITHERING，RenderingHints.VALUE_DITHER_ENABLE）;
g2d.setRenderingHint（RenderingHints.KEY_FRACTIONALMETRICS，RenderingHints.VALUE_FRACTIONALMETRICS_ON）;
g2d.setRenderingHint（RenderingHints.KEY_INTERPOLATION，RenderingHints.VALUE_INTERPOLATION_BILINEAR）;
g2d.setRenderingHint（RenderingHints.KEY_RENDERING，RenderingHints.VALUE_RENDER_QUALITY）;
// int fullWidth = getTagWidth（）+ 8;
int width = getTagWidth（）+ 8;
int height = getHeight（） - 3;
int tagWidth = getWidth（） - 1 - width;
Shape insert = new TagInsert（width，height）;
int x = getWidth（） - width - 1;
if（！isSelected（））{
x - = getTagWidth（）;
}
x - = 4;
g2d.translate（x，1）;
g2d.setPaint（new Color（242,95,0））;
g2d.fill（insert）;
g2d.setPaint（new Color（222,83,0））;
g2d.draw（insert）;
Stroke stroke = g2d.getStroke（）;
BasicStroke stitch = new BasicStroke（1f，BasicStroke.CAP_BUTT，BasicStroke.JOIN_MITER，10f，new float [] {3f}，0f）;
g2d.setStroke（stitch）;
g2d.setColor（new Color（167,65,1））;
g2d.drawLine（0,2，width，2）;
g2d.drawLine（0，height - 2，width，height - 2）;
g2d.setColor（new Color（249,127,50））;
g2d.drawLine（0,3，width，3）;
g2d.drawLine（0，height - 1，width，height - 1）;
g2d.setStroke（stroke）;
if（isSelected（））{
JLabel renderer = getRenderer（）;
renderer.setFont（getFont（））;
renderer.setText（getTag（））;
renderer.setSize（width - 8，renderer.getPreferredSize（）。height）;
renderer.setForeground（Color.WHITE）;
renderer.setHorizontalAlignment（JLabel.CENTER）;
int xPos = 4; //（（tagWidth - renderer.getWidth（））/ 2）;
int yPos =（height - renderer.getHeight（））/ 2;
g2d.translate（xPos，yPos）;
renderer.printAll（g2d）;
g2d.translate（-xPos，-yPos）;
}
g2d.translate（-x，-1）;
height = getHeight（） - 1;
Shape baseShape = new TagShape（tagWidth，height）;
LinearGradientPaint lgpFill = new LinearGradientPaint（
new Point（0,0），
new Point（0，getHeight（） - 1），
new float [] {0f，1f}，
new Color [] {new Color（248,248,248），new Color（241,241,241）}
）;
g2d.setPaint（lgpFill）;
g2d.fill（baseShape）;
LinearGradientPaint lgpOutline = new LinearGradientPaint（
new Point（0,0），
new Point（0，getHeight（） - 1），
new float [] {0f，1f}，
new Color [] {UIManager.getColor（Button.shadow），UIManager.getColor（Button.darkShadow）}
）;
g2d.setPaint（lgpOutline）;
g2d.draw（baseShape）;
JLabel renderer = getRenderer（）;
renderer.setFont（getFont（））;
renderer.setText（getText（））;
renderer.setSize（renderer.getPreferredSize（））;
renderer.setForeground（getForeground（））;
x =（tagWidth - renderer.getWidth（））/ 2;
int y =（height - renderer.getHeight（））/ 2;
renderer.setLocation（x，y）;
g2d.translate（x，y）;
renderer.printAll（g2d）;
g2d.translate（-x，-y）;
g2d.setColor（Color.RED）;
// g2d.drawRect（0,0，getWidth（） - 1，getHeight（） - 1）;
g2d.dispose（）;
}
}
protected static class TagInsert extends Path2D.Float {
public TagInsert（float width，float height）{
float gap = 3;
float radius =（height - （gap * 5））/ 4f;
moveTo（0,0）;
lineTo（width，0）;
float yPos = 0;
lineTo（width，1）;
浮动topY =缺口;
for（int index = 0; index< 4; index ++）{
float bottomY = topY + radius;
浮动x =宽度 - （半径/ 2）;
lineTo（width，topY）;
curveTo（x，topY，x，bottomY，width，bottomY）;
topY + = radius;
topY + = gap;
lineTo（width，topY）;
}
lineTo（宽度，高度）;
lineTo（0，height）;
lineTo（0,0）;
}
}
受保护的静态类TagShape扩展Path2D.Float {
protected static final float RADIUS = 8 ;
公共TagShape（浮动宽度，浮动高度）{
moveTo（RADIUS，0）;
lineTo（width，0）;
float clip = RADIUS / 2f;
float topY =（height / 2f） - clip;
浮动底部Y =（高度/ 2f）+剪辑;
lineTo（width，topY）;
curveTo（width - clip，topY，width - clip，bottomY，width，bottomY）;
lineTo（宽度，高度）;
lineTo（RADIUS，height）;
curveTo（0，height，0，height，0，height - RADIUS）;
lineTo（0，RADIUS）;
curveTo（0,0,0,0，RADIUS，0）;
}
}
}
I'm making my first steps with desktop GUI design. What I'm trying to achieve is displaying in one of table columns. I want them to be visually attractive and also clickable.
At first, I thought that it's possible to do that with JButton with some hacks, as suggested in this thread. But then I realized that I don't know how to manage dynamic width of labels and stretching the graphics to fill buttons in 100%.
I want to achieve something similar to image below. In HTML+CSS it's very easy, each tag:
- has left edge as graphics
- has repeatable 1px wide background
- has right edge as graphics
But how to do that in Java?
info: I don't care if this is a JButton or not, as long as it's nice, clickable and draggable.
UPDATE
Mockup below represents what I want to do. It involves JTable or multiple JLists as well as those tags floating left next to the word. It's easy to do in HTML+CSS, but almost impossible for me to do that in Java.
解决方案
I have no doubt there are multitudes of ways to achieve this, a better way would be to simply write a UI delegate, but let's try and keep it basic for the moment...
(I've updated the button code, so I've included it in the update)
The problem you have is JTable just isn't designed to do what you are trying to. Grouped rows and variable row heights are not easily achieved.
This is just an example, but what I've done is generate a series of compound components which "mimic" your basic requirements...
The following makes use `WrapLayout' written by own camrik and SwingLabs, SwingX libraries
import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.LinearGradientPaint;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.Path2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.AbstractButton;
import javax.swing.DefaultButtonModel;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;
import javax.swing.border.MatteBorder;
import org.jdesktop.swingx.*;
public class TestTagButton {
public static void main(String[] args) {
new TestTagButton();
}
public TestTagButton() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JPanel wordsPane = new JPanel(new VerticalLayout());
wordsPane.setBackground(Color.WHITE);
Word word = new Word("Hand");
word.addTag("body parts", 55);
List<String> translations = new ArrayList<>(3);
translations.add("Reka");
translations.add("Dion");
translations.add("Garsec");
wordsPane.add(new WordGroupPane(word, translations));
word = new Word("Roof");
word.addTag("house", 17);
word.addTag("architecture", 8);
translations = new ArrayList<>(3);
translations.add("Dach");
translations.add("Zadaszenie");
wordsPane.add(new WordGroupPane(word, translations));
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
// frame.add(new JScrollPane(wordsPane));
frame.add(wordsPane);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public static class WordGroupPane extends JPanel {
public WordGroupPane(Word word, List<String> translations) {
setOpaque(false);
setLayout(new GridLayout(0, 2));
add(new WordPane(word));
add(new TranslationsPane(translations));
}
}
public static class TranslationsPane extends JPanel {
protected static final Border SPLIT_BORDER = new MatteBorder(0, 0, 1, 0, Color.GRAY);
public TranslationsPane(List<String> translations) {
setOpaque(false);
setLayout(new GridLayout(0, 1));
for (String translation : translations) {
JLabel lbl = new JLabel(translation);
lbl.setHorizontalAlignment(JLabel.LEFT);
lbl.setBorder(SPLIT_BORDER);
add(lbl);
}
}
}
public static class WordPane extends JPanel {
public WordPane(Word word) {
setBorder(new MatteBorder(0, 0, 1, 1, Color.GRAY));
setOpaque(false);
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.NORTH;
gbc.insets = new Insets(10, 8, 10, 8);
JLabel label = new JLabel(word.getWord());
add(label, gbc);
gbc.gridx = 1;
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(0, 0, 0, 0);
JPanel tagsPane = new JPanel(new WrapLayout(WrapLayout.LEFT));
tagsPane.setOpaque(false);
for (Tag tag : word.getTags()) {
TagButton tb = new TagButton(tag.getText());
Font font = tb.getFont();
font = font.deriveFont(font.getSize() - 3f);
tb.setFont(font);
tb.setTag(Integer.toString(tag.getCount()));
tb.setSelected(true);
tagsPane.add(tb);
}
add(tagsPane, gbc);
}
}
public class Word {
private String word;
private List<Tag> tags;
public Word(String word) {
this.word = word;
this.tags = new ArrayList<>(25);
}
public void addTag(String text, int count) {
addTag(new Tag(text, count));
}
public String getWord() {
return word;
}
public List<Tag> getTags() {
return tags;
}
public void addTag(Tag tag) {
tags.add(tag);
}
}
public class Tag {
private String text;
private int count;
public Tag(String text, int count) {
this.text = text;
this.count = count;
}
public String getText() {
return text;
}
public int getCount() {
return count;
}
}
public static class TagButton extends AbstractButton {
private JLabel renderer;
private String tag;
public TagButton(String text) {
this();
setText(text);
}
public TagButton() {
setModel(new DefaultButtonModel());
setMargin(new Insets(8, 8, 8, 8));
addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
getModel().setPressed(true);
}
@Override
public void mouseReleased(MouseEvent e) {
getModel().setPressed(false);
getModel().setSelected(!isSelected());
}
});
setFont(UIManager.getFont("Button.font"));
}
public void setTag(String value) {
if (tag == null ? value != null : !tag.equals(value)) {
String old = tag;
tag = value;
firePropertyChange("tag", old, tag);
revalidate();
}
}
public String getTag() {
return tag;
}
protected JLabel getRenderer() {
if (renderer == null) {
renderer = new JLabel(getText());
}
return renderer;
}
@Override
public Dimension getPreferredSize() {
Insets margin = getMargin();
Dimension size = new Dimension();
size.width = margin.left + margin.right;
size.height = margin.top + margin.bottom;
JLabel renderer = getRenderer();
renderer.setText(getText());
size.width += renderer.getPreferredSize().width;
size.height += renderer.getPreferredSize().height;
size.width += getTagWidth();
return size;
}
protected int getTagWidth() {
JLabel renderer = getRenderer();
renderer.setText(getTag());
renderer.setFont(getFont());
return renderer.getPreferredSize().width + 16;
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g.create();
g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
// int fullWidth = getTagWidth() + 8;
int width = getTagWidth() + 8;
int height = getHeight() - 3;
int tagWidth = getWidth() - 1 - width;
Shape insert = new TagInsert(width, height);
int x = getWidth() - width - 1;
if (!isSelected()) {
x -= getTagWidth();
}
x -= 4;
g2d.translate(x, 1);
g2d.setPaint(new Color(242, 95, 0));
g2d.fill(insert);
g2d.setPaint(new Color(222, 83, 0));
g2d.draw(insert);
Stroke stroke = g2d.getStroke();
BasicStroke stitch = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10f, new float[]{3f}, 0f);
g2d.setStroke(stitch);
g2d.setColor(new Color(167, 65, 1));
g2d.drawLine(0, 2, width, 2);
g2d.drawLine(0, height - 2, width, height - 2);
g2d.setColor(new Color(249, 127, 50));
g2d.drawLine(0, 3, width, 3);
g2d.drawLine(0, height - 1, width, height - 1);
g2d.setStroke(stroke);
if (isSelected()) {
JLabel renderer = getRenderer();
renderer.setFont(getFont());
renderer.setText(getTag());
renderer.setSize(width - 8, renderer.getPreferredSize().height);
renderer.setForeground(Color.WHITE);
renderer.setHorizontalAlignment(JLabel.CENTER);
int xPos = 4;//((tagWidth - renderer.getWidth()) / 2);
int yPos = (height - renderer.getHeight()) / 2;
g2d.translate(xPos, yPos);
renderer.printAll(g2d);
g2d.translate(-xPos, -yPos);
}
g2d.translate(-x, -1);
height = getHeight() - 1;
Shape baseShape = new TagShape(tagWidth, height);
LinearGradientPaint lgpFill = new LinearGradientPaint(
new Point(0, 0),
new Point(0, getHeight() - 1),
new float[]{0f, 1f},
new Color[]{new Color(248, 248, 248), new Color(241, 241, 241)}
);
g2d.setPaint(lgpFill);
g2d.fill(baseShape);
LinearGradientPaint lgpOutline = new LinearGradientPaint(
new Point(0, 0),
new Point(0, getHeight() - 1),
new float[]{0f, 1f},
new Color[]{UIManager.getColor("Button.shadow"), UIManager.getColor("Button.darkShadow")}
);
g2d.setPaint(lgpOutline);
g2d.draw(baseShape);
JLabel renderer = getRenderer();
renderer.setFont(getFont());
renderer.setText(getText());
renderer.setSize(renderer.getPreferredSize());
renderer.setForeground(getForeground());
x = (tagWidth - renderer.getWidth()) / 2;
int y = (height - renderer.getHeight()) / 2;
renderer.setLocation(x, y);
g2d.translate(x, y);
renderer.printAll(g2d);
g2d.translate(-x, -y);
g2d.setColor(Color.RED);
// g2d.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
g2d.dispose();
}
}
protected static class TagInsert extends Path2D.Float {
public TagInsert(float width, float height) {
float gap = 3;
float radius = (height - (gap * 5)) / 4f;
moveTo(0, 0);
lineTo(width, 0);
float yPos = 0;
lineTo(width, 1);
float topY = gap;
for (int index = 0; index < 4; index++) {
float bottomY = topY + radius;
float x = width - (radius / 2);
lineTo(width, topY);
curveTo(x, topY, x, bottomY, width, bottomY);
topY += radius;
topY += gap;
lineTo(width, topY);
}
lineTo(width, height);
lineTo(0, height);
lineTo(0, 0);
}
}
protected static class TagShape extends Path2D.Float {
protected static final float RADIUS = 8;
public TagShape(float width, float height) {
moveTo(RADIUS, 0);
lineTo(width, 0);
float clip = RADIUS / 2f;
float topY = (height / 2f) - clip;
float bottomY = (height / 2f) + clip;
lineTo(width, topY);
curveTo(width - clip, topY, width - clip, bottomY, width, bottomY);
lineTo(width, height);
lineTo(RADIUS, height);
curveTo(0, height, 0, height, 0, height - RADIUS);
lineTo(0, RADIUS);
curveTo(0, 0, 0, 0, RADIUS, 0);
}
}
}
这篇关于Java Swing - 创建类似标签的动态宽度按钮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！
查看全文
