मैं जेएलएबल में लंबवत पाठ कैसे प्रस्तुत करूं? (जावा 1.6)

Question

मैं एक जेएलएबल के भीतर शीर्ष पर पाठ को लंबवत, शीर्ष पर पहला अक्षर, शीर्ष पर अंतिम अक्षर देखना चाहता हूं। क्या यह संभव है?

Answer 1

मैं इस पृष्ठ पाया: http://www.java2s.com/Tutorial/Java/0240__Swing/VerticalLabelUI.htm जब मैं ऐसा करने की जरूरत।

मुझे नहीं पता कि क्या आप एक-दूसरे पर अक्षरों को खड़े करना चाहते हैं या सभी उनके पक्ष में घूमते हैं।

/* 
* The contents of this file are subject to the Sapient Public License 
* Version 1.0 (the "License"); you may not use this file except in compliance 
* with the License. You may obtain a copy of the License at 
* http://carbon.sf.net/License.html. 
* 
* Software distributed under the License is distributed on an "AS IS" basis, 
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for 
* the specific language governing rights and limitations under the License. 
* 
* The Original Code is The Carbon Component Framework. 
* 
* The Initial Developer of the Original Code is Sapient Corporation 
* 
* Copyright (C) 2003 Sapient Corporation. All Rights Reserved. 
*/ 


import java.awt.Dimension; 
import java.awt.FontMetrics; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.Insets; 
import java.awt.Rectangle; 
import java.awt.geom.AffineTransform; 

import javax.swing.Icon; 
import javax.swing.JComponent; 
import javax.swing.JLabel; 
import javax.swing.plaf.basic.BasicLabelUI; 

/** 
* This is the template for Classes. 
* 
* 
* @since carbon 1.0 
* @author Greg Hinkle, January 2002 
* @version $Revision: 1.4 $($Author: dvoet $/$Date: 2003/05/05 21:21:27 $) 
* @copyright 2002 Sapient 
*/ 

public class VerticalLabelUI extends BasicLabelUI { 
    static { 
     labelUI = new VerticalLabelUI(false); 
    } 

    protected boolean clockwise; 


    public 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); 
    } 
} 

Answer 2

आप एक तरह से इस तरह, रंग आदेश के साथ खिलवाड़ से यह कर सकते हैं:

public class JVertLabel extends JComponent{ 
    private String text; 

    public JVertLabel(String s){ 
    text = s; 
    } 

    public void paintComponent(Graphics g){ 
    super.paintComponent(g); 
    Graphics2D g2d = (Graphics2D)g; 

    g2d.rotate(Math.toRadians(270.0)); 
    g2d.drawString(text, 0, 0); 
    } 
} 

Answer 3

जेएलएबल में टेक्स्ट दिखाने का एक और तरीका लंबवत रूप से जेएलएबल के पाठ में HTML टैग का उपयोग करना है। उदाहरण के लिए setText("<HTML>H<br>E<br>L<br>L<br>O</HTML>"); को
एच
ई
एल
एल पाठ सेट हो जाएगा
हे

Answer 4

तुम भी SwingX एपीआई

ऊपर से नीचे का उपयोग कर सकते हैं:

JXLabel label = new JXLabel("MY TEXT"); 
label.setTextRotation(3 * Math.PI/2); 

शीर्ष से नीचे:

JXLabel label = new JXLabel("MY TEXT"); 
label.setTextRotation(Math.PI/2); 

Answer 5

यहाँ एक और समाधान है कि है:

• पर विचार स्थानीयकरण पात्रों
• आकर्षित कर सकते हैं या तो खड़ी & केंद्रित खड़ी, या घुमाया

http://www.macdevcenter.com/pub/a/mac/2002/03/22/vertical_text.html

जावाडोक में एक नोट हाइलाइट करना :

चीनी/जापानी/कोरियाई लिपियों विशेष नियम है जब खड़ी तैयार की और

कभी नहीं घुमाया जाना चाहिए कुछ दृश्य उदाहरण के लिए लेख देखें।

/** 
VTextIcon is an Icon implementation which draws a short string vertically. 
It's useful for JTabbedPanes with LEFT or RIGHT tabs but can be used in any 
component which supports Icons, such as JLabel or JButton 

You can provide a hint to indicate whether to rotate the string 
to the left or right, or not at all, and it checks to make sure 
that the rotation is legal for the given string 
(for example, Chinese/Japanese/Korean scripts have special rules when 
drawn vertically and should never be rotated) 
*/ 
public class VTextIcon implements Icon, PropertyChangeListener { 
    String fLabel; 
    String[] fCharStrings; // for efficiency, break the fLabel into one-char strings to be passed to drawString 
    int[] fCharWidths; // Roman characters should be centered when not rotated (Japanese fonts are monospaced) 
    int[] fPosition; // Japanese half-height characters need to be shifted when drawn vertically 
    int fWidth, fHeight, fCharHeight, fDescent; // Cached for speed 
    int fRotation; 
    Component fComponent; 

    static final int POSITION_NORMAL = 0; 
    static final int POSITION_TOP_RIGHT = 1; 
    static final int POSITION_FAR_TOP_RIGHT = 2; 

    public static final int ROTATE_DEFAULT = 0x00; 
    public static final int ROTATE_NONE = 0x01; 
    public static final int ROTATE_LEFT = 0x02; 
    public static final int ROTATE_RIGHT = 0x04; 

    /** 
    * Creates a <code>VTextIcon</code> for the specified <code>component</code> 
    * with the specified <code>label</code>. 
    * It sets the orientation to the default for the string 
    * @see #verifyRotation 
    */ 
    public VTextIcon(Component component, String label) { 
     this(component, label, ROTATE_DEFAULT); 
    } 

    /** 
    * Creates a <code>VTextIcon</code> for the specified <code>component</code> 
    * with the specified <code>label</code>. 
    * It sets the orientation to the provided value if it's legal for the string 
    * @see #verifyRotation 
    */ 
    public VTextIcon(Component component, String label, int rotateHint) { 
     fComponent = component; 
     fLabel = label; 
     fRotation = verifyRotation(label, rotateHint); 
     calcDimensions(); 
     fComponent.addPropertyChangeListener(this); 
    } 

    /** 
    * sets the label to the given string, updating the orientation as needed 
    * and invalidating the layout if the size changes 
    * @see #verifyRotation 
    */ 
    public void setLabel(String label) { 
     fLabel = label; 
     fRotation = verifyRotation(label, fRotation); // Make sure the current rotation is still legal 
     recalcDimensions(); 
    } 

    /** 
    * Checks for changes to the font on the fComponent 
    * so that it can invalidate the layout if the size changes 
    */ 
    public void propertyChange(PropertyChangeEvent e) { 
     String prop = e.getPropertyName(); 
     if("font".equals(prop)) { 
      recalcDimensions(); 
     } 
    } 

    /** 
    * Calculates the dimensions. If they've changed, 
    * invalidates the component 
    */ 
    void recalcDimensions() { 
     int wOld = getIconWidth(); 
     int hOld = getIconHeight(); 
     calcDimensions(); 
     if (wOld != getIconWidth() || hOld != getIconHeight()) 
      fComponent.invalidate(); 
    } 

    void calcDimensions() { 
     FontMetrics fm = fComponent.getFontMetrics(fComponent.getFont()); 
     fCharHeight = fm.getAscent() + fm.getDescent(); 
     fDescent = fm.getDescent(); 
     if (fRotation == ROTATE_NONE) { 
      int len = fLabel.length(); 
      char data[] = new char[len]; 
      fLabel.getChars(0, len, data, 0); 
      // if not rotated, width is that of the widest char in the string 
      fWidth = 0; 
      // we need an array of one-char strings for drawString 
      fCharStrings = new String[len]; 
      fCharWidths = new int[len]; 
      fPosition = new int[len]; 
      char ch; 
      for (int i = 0; i < len; i++) { 
       ch = data[i]; 
       fCharWidths[i] = fm.charWidth(ch); 
       if (fCharWidths[i] > fWidth) 
        fWidth = fCharWidths[i]; 
       fCharStrings[i] = new String(data, i, 1);    
       // small kana and punctuation 
       if (sDrawsInTopRight.indexOf(ch) >= 0) // if ch is in sDrawsInTopRight 
        fPosition[i] = POSITION_TOP_RIGHT; 
       else if (sDrawsInFarTopRight.indexOf(ch) >= 0) 
        fPosition[i] = POSITION_FAR_TOP_RIGHT; 
       else 
        fPosition[i] = POSITION_NORMAL; 
      } 
      // and height is the font height * the char count, + one extra leading at the bottom 
      fHeight = fCharHeight * len + fDescent; 
     }  
     else { 
      // if rotated, width is the height of the string 
      fWidth = fCharHeight; 
      // and height is the width, plus some buffer space 
      fHeight = fm.stringWidth(fLabel) + 2*kBufferSpace; 
     } 
    } 

    /** 
    * Draw the icon at the specified location. Icon implementations 
    * may use the Component argument to get properties useful for 
    * painting, e.g. the foreground or background color. 
    */ 
    public void paintIcon(Component c, Graphics g, int x, int y) { 
     // We don't insist that it be on the same Component 
     g.setColor(c.getForeground()); 
     g.setFont(c.getFont()); 
     if (fRotation == ROTATE_NONE) { 
      int yPos = y + fCharHeight; 
      for (int i = 0; i < fCharStrings.length; i++) { 
       // Special rules for Japanese - "half-height" characters (like ya, yu, yo in combinations) 
       // should draw in the top-right quadrant when drawn vertically 
       // - they draw in the bottom-left normally 
       int tweak; 
       switch (fPosition[i]) { 
        case POSITION_NORMAL: 
         // Roman fonts should be centered. Japanese fonts are always monospaced. 
         g.drawString(fCharStrings[i], x+((fWidth-fCharWidths[i])/2), yPos); 
         break; 
        case POSITION_TOP_RIGHT: 
         tweak = fCharHeight/3; // Should be 2, but they aren't actually half-height 
         g.drawString(fCharStrings[i], x+(tweak/2), yPos-tweak); 
         break; 
        case POSITION_FAR_TOP_RIGHT: 
         tweak = fCharHeight - fCharHeight/3; 
         g.drawString(fCharStrings[i], x+(tweak/2), yPos-tweak); 
         break; 
       } 
       yPos += fCharHeight; 
      } 
     } 
     else if (fRotation == ROTATE_LEFT) { 
      g.translate(x+fWidth,y+fHeight); 
      ((Graphics2D)g).rotate(-NINETY_DEGREES); 
      g.drawString(fLabel, kBufferSpace, -fDescent); 
      ((Graphics2D)g).rotate(NINETY_DEGREES); 
      g.translate(-(x+fWidth),-(y+fHeight)); 
     } 
     else if (fRotation == ROTATE_RIGHT) { 
      g.translate(x,y); 
      ((Graphics2D)g).rotate(NINETY_DEGREES); 
      g.drawString(fLabel, kBufferSpace, -fDescent); 
      ((Graphics2D)g).rotate(-NINETY_DEGREES); 
      g.translate(-x,-y); 
     } 

    } 

    /** 
    * Returns the icon's width. 
    * 
    * @return an int specifying the fixed width of the icon. 
    */ 
    public int getIconWidth() { 
     return fWidth; 
    } 

    /** 
    * Returns the icon's height. 
    * 
    * @return an int specifying the fixed height of the icon. 
    */ 
    public int getIconHeight() { 
     return fHeight; 
    } 

    /** 
     verifyRotation 

     returns the best rotation for the string (ROTATE_NONE, ROTATE_LEFT, ROTATE_RIGHT) 

     This is public static so you can use it to test a string without creating a VTextIcon 

    from http://www.unicode.org/unicode/reports/tr9/tr9-3.html 
    When setting text using the Arabic script in vertical lines, 
    it is more common to employ a horizontal baseline that 
    is rotated by 90� counterclockwise so that the characters 
    are ordered from top to bottom. Latin text and numbers 
    may be rotated 90� clockwise so that the characters 
    are also ordered from top to bottom. 

     Rotation rules 
     - Roman can rotate left, right, or none - default right (counterclockwise) 
     - CJK can't rotate 
     - Arabic must rotate - default left (clockwise) 

    from the online edition of _The Unicode Standard, Version 3.0_, file ch10.pdf page 4 
    Ideographs are found in three blocks of the Unicode Standard... 
    U+4E00-U+9FFF, U+3400-U+4DFF, U+F900-U+FAFF 

    Hiragana is U+3040-U+309F, katakana is U+30A0-U+30FF 

    from http://www.unicode.org/unicode/faq/writingdirections.html 
    East Asian scripts are frequently written in vertical lines 
    which run from top-to-bottom and are arrange columns either 
    from left-to-right (Mongolian) or right-to-left (other scripts). 
    Most characters use the same shape and orientation when displayed 
    horizontally or vertically, but many punctuation characters 
    will change their shape when displayed vertically. 

    Letters and words from other scripts are generally rotated through 
    ninety degree angles so that they, too, will read from top to bottom. 
    That is, letters from left-to-right scripts will be rotated clockwise 
    and letters from right-to-left scripts counterclockwise, both 
    through ninety degree angles. 

    Unlike the bidirectional case, the choice of vertical layout 
    is usually treated as a formatting style; therefore, 
    the Unicode Standard does not define default rendering behavior 
    for vertical text nor provide directionality controls designed to override such behavior 

    */ 
    public static int verifyRotation(String label, int rotateHint) { 
     boolean hasCJK = false; 
     boolean hasMustRotate = false; // Arabic, etc 

     int len = label.length(); 
     char data[] = new char[len]; 
     char ch; 
     label.getChars(0, len, data, 0); 
     for (int i = 0; i < len; i++) { 
      ch = data[i]; 
      if ((ch >= '\u4E00' && ch <= '\u9FFF') || 
       (ch >= '\u3400' && ch <= '\u4DFF') || 
       (ch >= '\uF900' && ch <= '\uFAFF') || 
       (ch >= '\u3040' && ch <= '\u309F') || 
       (ch >= '\u30A0' && ch <= '\u30FF')) 
       hasCJK = true; 
      if ((ch >= '\u0590' && ch <= '\u05FF') || // Hebrew 
       (ch >= '\u0600' && ch <= '\u06FF') || // Arabic 
       (ch >= '\u0700' && ch <= '\u074F')) // Syriac 
       hasMustRotate = true; 
     } 
     // If you mix Arabic with Chinese, you're on your own 
     if (hasCJK) 
      return DEFAULT_CJK; 

     int legal = hasMustRotate ? LEGAL_MUST_ROTATE : LEGAL_ROMAN; 
     if ((rotateHint & legal) > 0) 
      return rotateHint; 

     // The hint wasn't legal, or it was zero 
     return hasMustRotate ? DEFAULT_MUST_ROTATE : DEFAULT_ROMAN; 
    } 

    // The small kana characters and Japanese punctuation that draw in the top right quadrant: 
    // small a, i, u, e, o, tsu, ya, yu, yo, wa (katakana only) ka ke 
    static final String sDrawsInTopRight = 
     "\u3041\u3043\u3045\u3047\u3049\u3063\u3083\u3085\u3087\u308E" + // hiragana 
     "\u30A1\u30A3\u30A5\u30A7\u30A9\u30C3\u30E3\u30E5\u30E7\u30EE\u30F5\u30F6"; // katakana 
    static final String sDrawsInFarTopRight = "\u3001\u3002"; // comma, full stop 

    static final int DEFAULT_CJK = ROTATE_NONE; 
    static final int LEGAL_ROMAN = ROTATE_NONE | ROTATE_LEFT | ROTATE_RIGHT; 
    static final int DEFAULT_ROMAN = ROTATE_RIGHT; 
    static final int LEGAL_MUST_ROTATE = ROTATE_LEFT | ROTATE_RIGHT; 
    static final int DEFAULT_MUST_ROTATE = ROTATE_LEFT; 

    static final double NINETY_DEGREES = Math.toRadians(90.0); 
    static final int kBufferSpace = 5; 
} 

किसी भी उद्देश्य के लिए उपयोग करने के लिए के रूप में नि: शुल्क उपलब्ध कराई:

यहां मुख्य वर्ग JTextIcon.java, मामले में लेख वेब बंद बूँदें है।

, paintIcon विधि में विरोधी aliasing जोड़ने भी नहीं है एक CompositeIcon वर्ग आप एक और आइकन (यहां नहीं दिया)

लेख में एक टिप्पणी के अनुसार के साथ खड़ी पाठ रचना देता है कि:

Graphics2D g2 = (Graphics2D) g; 
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);