/* * Gets the user choice for font, style and size and redraws the text * accordingly. */ public void setSampleFont() { // Get the font name from the JComboBox fontName = (String) facenameCombo.getSelectedItem(); sampleField.setText(textField.getText()); // Get the font style from the JCheckBoxes fontStyle = 0; if (italicCheckBox.isSelected()) fontStyle += Font.ITALIC; if (boldCheckBox.isSelected()) fontStyle += Font.BOLD; // Get the font size fontSize = 0; fontSize = Integer.parseInt((String) sizeCombo.getSelectedItem()); // THE FOLLOWING IS NO LONGER NEEDED // if(smallButton.isSelected()) // fontSize=SMALL; // else if(mediumButton.isSelected()) // fontSize=MEDIUM; // else if(largeButton.isSelected()) // fontSize=LARGE; // Set the font of the text field sampleField.setFont(new Font(fontName, fontStyle, fontSize)); sampleField.setForeground(fontColor); sampleField.repaint(); pack(); } // end setSampleFont method
/* * The following method resets the window to its original status. */ public void init() { sampleField.setText(new String("Big Java")); textField.setText(new String("Big Java")); facenameCombo.setSelectedIndex(0); sizeCombo.setSelectedIndex(2); italicCheckBox.setSelected(false); boldCheckBox.setSelected(false); // largeButton.setSelected(true); fontColor = Color.BLACK; setSampleFont(); } // end init method
public ColorChooserDemo() { super(new BorderLayout()); // 设置一个标签,做广告的。也用来显示用户选择的颜色。 banner = new JLabel("欢迎使用颜色选择器!", JLabel.CENTER); banner.setForeground(Color.yellow); banner.setBackground(Color.blue); banner.setOpaque(true); banner.setFont(new Font("SansSerif", Font.BOLD, 24)); banner.setPreferredSize(new Dimension(100, 65)); JPanel bannerPanel = new JPanel(new BorderLayout()); bannerPanel.add(banner, BorderLayout.CENTER); bannerPanel.setBorder(BorderFactory.createTitledBorder("广告")); // 设置选择颜色选择器 tcc = new JColorChooser(banner.getForeground()); // 设置初始颜色 tcc.getSelectionModel().addChangeListener(this); // 给所有模式添加监听 tcc.setBorder(BorderFactory.createTitledBorder("选择颜色")); add(bannerPanel, BorderLayout.CENTER); add(tcc, BorderLayout.PAGE_END); }
public void loadImage(String filename) { theImage.setIcon(new MyImageIcon(filename)); }
/** * <br> * 方法说明:事件监听。用户选择颜色触发 <br> * 输入参数:ChangeEvent e 用户选择事件 <br> * 返回类型: */ public void stateChanged(ChangeEvent e) { Color newColor = tcc.getColor(); // 获取用户选择的颜色 banner.setForeground(newColor); }