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Nairaland Forum / Science/Technology / Programming / Rotating A Jlabel Using Netbeans (5351 Views)
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Rotating A Jlabel Using Netbeans by mikkytrio(m): 8:31pm On Jul 02, 2010 |
Please I am writing an application which when a button is clicked it gets to rotate a jLabel please can I get assistance on what code to use here private void rotate_15D_ActionPerformed(java.awt.event.ActionEvent evt) { // my problem is in here when clicked a jLabel is to rotate by 15 degrees } |
Re: Rotating A Jlabel Using Netbeans by Kobojunkie: 3:12pm On Jul 04, 2010 |
Check this out http://stackoverflow.com/questions/416897/how-do-i-rotate-a-label-in-c Though code is in C#, it should be easy for you to read since the two languages are somehow syntatically similar |
Re: Rotating A Jlabel Using Netbeans by JFrame: 4:26pm On Jul 07, 2010 |
Try this Program of mine it will give you great help: import java.awt.*; import java.util.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.plaf.basic.*; import java.awt.geom.*; // This code uses Graphics2D which is supported only on Java 2 public class Main { public static void main(String[] args) { JFrame frame = new JFrame("Main" frame.addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { Window win = e.getWindow(); win.setVisible(false); win.dispose(); System.exit(0); } } ); frame.getContentPane().setLayout( new FlowLayout() ); ImageIcon icon = new ImageIcon( "dukeWave.gif" ) ; JLabel l = new JLabel( "Rotated anti-clockwise", icon, SwingConstants.LEFT ); l.setUI( new VerticalLabelUI(false) ); l.setBorder( new EtchedBorder() ); frame.getContentPane().add( l ); l = new JLabel( "Rotated Clockwise", icon, SwingConstants.LEFT ); // l.setHorizontalTextPosition( SwingConstants.LEFT ); l.setUI( new VerticalLabelUI(true) ); l.setBorder( new EtchedBorder() ); frame.getContentPane().add( l ); frame.getContentPane().add( new JButton( "Button" ) ); frame.pack(); frame.show(); } } class VerticalLabelUI extends BasicLabelUI { static { labelUI = new VerticalLabelUI(false); } protected boolean clockwise; VerticalLabelUI( boolean clockwise ) { super(); this.clockwise = clockwise; } public Dimension getPreferredSize(JComponent c) { Dimension dim = super.getPreferredSize(c); return new Dimension( dim.height, dim.width ); } private static Rectangle paintIconR = new Rectangle(); private static Rectangle paintTextR = new Rectangle(); private static Rectangle paintViewR = new Rectangle(); private static Insets paintViewInsets = new Insets(0, 0, 0, 0); public void paint(Graphics g, JComponent c) { JLabel label = (JLabel)c; String text = label.getText(); Icon icon = (label.isEnabled()) ? label.getIcon() : label.getDisabledIcon(); if ((icon == null) && (text == null)) { return; } FontMetrics fm = g.getFontMetrics(); paintViewInsets = c.getInsets(paintViewInsets); paintViewR.x = paintViewInsets.left; paintViewR.y = paintViewInsets.top; // Use inverted height & width paintViewR.height = c.getWidth() - (paintViewInsets.left + paintViewInsets.right); paintViewR.width = c.getHeight() - (paintViewInsets.top + paintViewInsets.bottom); paintIconR.x = paintIconR.y = paintIconR.width = paintIconR.height = 0; paintTextR.x = paintTextR.y = paintTextR.width = paintTextR.height = 0; String clippedText = layoutCL(label, fm, text, icon, paintViewR, paintIconR, paintTextR); Graphics2D g2 = (Graphics2D) g; AffineTransform tr = g2.getTransform(); if( clockwise ) { g2.rotate( Math.PI / 2 ); g2.translate( 0, - c.getWidth() ); } else { g2.rotate( - Math.PI / 2 ); g2.translate( - c.getHeight(), 0 ); } if (icon != null) { icon.paintIcon(c, g, paintIconR.x, paintIconR.y); } if (text != null) { int textX = paintTextR.x; int textY = paintTextR.y + fm.getAscent(); if (label.isEnabled()) { paintEnabledText(label, g, clippedText, textX, textY); } else { paintDisabledText(label, g, clippedText, textX, textY); } } g2.setTransform( tr ); } } |
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