放大字体
放大字体
Java实现字体的颜色、大小、粗细等设置，具体代码如下：packagecom.realty.relation;
//MatrixMultiply.javaUntitled1
importjavax.swing.*;
importjava.awt.*;
importjava.awt.event.*;
public class Untitled1 extends JFrame implements ActionListener { JComboBoxfontType, fontSize;
JCheckBoxboldBx; //粗体按钮
JCheckBoxitalicBx; //斜体按钮
JButtoncolorBtn; //颜色按钮；
String[] fontNames; //字体名称;
String[] fontSizes; //字体尺寸；
JLabel label; //输入提示标签；
JTextFieldinputText; //文字输入框；
JTextAreatxtArea; //文字显示区;
JPanelfontPanel; //字体设置；
JPanelshowPanel; //显示效果区
Font f;
Font font;
intboldStyle, italicStyle, underlineStyle;
intfontSizeStyle;
String fontNameStyle;
Color colorStyle = Color.black; //设置字体的默认颜色为黑色;
public Untitled1() {
super("字体设置");
//设置默认字体
boldStyle = 0;
italicStyle = 0;
underlineStyle = 0;
fontSizeStyle = 10;
fontNameStyle = "宋体";
font = new Font(fontNameStyle, boldStyle + italicStyle, fontSizeStyle);
fontPanel = new JPanel();
fontPanel.setLayout(new FlowLayout());
//设置字体名字
GraphicsEnvironmentge = GraphicsEnvironment.getLocalGraphicsEnvironment(); fontNames = ge.getAvailableFontFamilyNames(); //获得系统中所有字体的名字；fontType = new JComboBox(fontNames);
fontType.setEditable(false);
fontType.setMaximumRowCount(10);
fontSizes = new String[63];
for (int i = 0; i < 63; i++) {
fontSizes[i] = Integer.toString((i + 10));
}
fontSize = new JComboBox(fontSizes);
fontSize.setEditable(false);
fontSize.setMaximumRowCount(10);
fontType.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
//实现监听字体名字改变的事件
intnum = new Integer(fontSize.getSelectedItem().toString()).intValue();
if (italicBx.isSelected() &&boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC + Font.BOLD, num);
txtArea.setFont(f);
} else if (boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.BOLD, num); txtArea.setFont(f);
} else if (italicBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC, num); txtArea.setFont(f);
} else {
f = new Font(fontType.getSelectedItem().toString(), Font.PLAIN, num); txtArea.setFont(f);
}
}
});
//设置字体大小
fontSize.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
//实现监听字体大小改变的方法
intnum = new Integer(fontSize.getSelectedItem().toString()).intValue();
if (italicBx.isSelected() &&boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC + Font.BOLD, num);
txtArea.setFont(f);
} else if (boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.BOLD, num); txtArea.setFont(f);
} else if (italicBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC, num);
txtArea.setFont(f);
} else {
f = new Font(fontType.getSelectedItem().toString(), Font.PLAIN, num); txtArea.setFont(f);
}
}
});
//设置粗体选择按钮；
boldBx = new JCheckBox("粗体");
boldBx.addItemListener(new ItemListener() {
//实现监听选择粗体状态改变的方法
public void itemStateChanged(ItemEvent e) {
intnum = new Integer(fontSize.getSelectedItem().toString()).intValue();
if (italicBx.isSelected() &&boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC + Font.BOLD, num);
txtArea.setFont(f);
} else if (boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.BOLD, num); txtArea.setFont(f);
} else if (italicBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC, num); txtArea.setFont(f);
} else {
f = new Font(fontType.getSelectedItem().toString(), Font.PLAIN, num); txtArea.setFont(f);
}
}
});
//设置斜体选择按钮；
italicBx = new JCheckBox("斜体");
italicBx.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
//实现监听选择斜体状态改变的方法
intnum = new Integer(fontSize.getSelectedItem().toString()).intValue();
if (italicBx.isSelected() &&boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC + Font.BOLD, num);
txtArea.setFont(f);
} else if (italicBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.ITALIC, num); txtArea.setFont(f);
} else if (boldBx.isSelected()) {
f = new Font(fontType.getSelectedItem().toString(), Font.BOLD, num); txtArea.setFont(f);
} else {
f = new Font(fontType.getSelectedItem().toString(), Font.PLAIN, num);
txtArea.setFont(f);
}
}
});
//设置颜色选择；
colorBtn = new JButton("颜色");
colorBtn.addActionListener(this);
//设置字体面板；
fontPanel.add(fontType);
fontPanel.add(fontSize);
fontPanel.add(boldBx);
fontPanel.add(italicBx);
fontPanel.add(colorBtn);
//设置输入提示标签
label = new JLabel("输入");
//设置文本输入框；
inputText = new JTextField(30);
inputText.addActionListener(this);
//设置文本显示区；
txtArea = new JTextArea(10, 80); //20行80列；
txtArea.setFont(font);
//设置文本面板;
showPanel = new JPanel();
showPanel.add(label);
showPanel.add(inputText);
showPanel.setLayout(new FlowLayout());
showPanel.add(new JScrollPane(txtArea));
//设置容器;
Container container = getContentPane();
container.setLayout(new BorderLayout());
container.add(fontPanel, BorderLayout.NORTH);
container.add(showPanel, BorderLayout.CENTER);
setSize(500, 300);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == colorBtn) { //改变颜色
colorStyle = JColorChooser.showDialog(this, "选择字体颜色", colorStyle); colorBtn.setForeground(colorStyle);
txtArea.setForeground(colorStyle);
} else if (e.getSource() == inputText) { //将输入文字在文字显示区表示；txtArea.setText(inputText.getText());
}
}
public static void main(String args[]) {
Untitled1 artFont = new Untitled1();
artFont.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}