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PatchworkComponent.javaAPI DocExample2263Mon Apr 05 11:56:36 BST 1999None

PatchworkComponent

public class PatchworkComponent extends JComponent implements Printable

Fields Summary
private float
mSide
private float
mOffset
private int
mColumns
private int
mRows
private String
mString
private Font
mFont
private Paint
mHorizontalGradient
private Paint
mVerticalGradient
Constructors Summary
public PatchworkComponent()

  
    
    float x = mOffset;
    float y = mOffset;
    float halfSide = mSide / 2;
    float x0 = x + halfSide;
    float y0 = y;
    float x1 = x + halfSide;
    float y1 = y + (mRows * mSide);
    mVerticalGradient = new GradientPaint(
      x0, y0, Color.darkGray, x1, y1, Color.lightGray, true);
    x0 = x;
    y0 = y + halfSide;
    x1 = x + (mColumns * mSide);
    y1 = y + halfSide;
    mHorizontalGradient = new GradientPaint(
      x0, y0, Color.darkGray, x1, y1, Color.lightGray, true);
public PatchworkComponent(String s)

 this(); mString = s;
Methods Summary
public voidpaintComponent(java.awt.Graphics g)

    Graphics2D g2 = (Graphics2D)g;
    
    g2.rotate(Math.PI / 24, mOffset, mOffset);

    for (int row = 0; row < mRows; row++) {
      for (int column = 0; column < mColumns; column++) {
        float x = column * mSide + mOffset;
        float y = row * mSide + mOffset;
        
        if (((column + row) % 2) == 0) g2.setPaint(mVerticalGradient);
        else g2.setPaint(mHorizontalGradient);
        
        Rectangle2D r = new Rectangle2D.Float(x, y, mSide, mSide);
        g2.fill(r);
      }
    }

    FontRenderContext frc = g2.getFontRenderContext();
    float width = (float)mFont.getStringBounds(mString, frc).getWidth();
    LineMetrics lm = mFont.getLineMetrics(mString, frc);
    float x = ((mColumns * mSide) - width) / 2 + mOffset;
    float y = ((mRows * mSide) + lm.getAscent()) / 2 + mOffset;
    g2.setFont(mFont);
    g2.setPaint(Color.white);
    g2.drawString(mString, x, y);
public intprint(java.awt.Graphics g, java.awt.print.PageFormat pageFormat, int pageIndex)

    if (pageIndex != 0) return NO_SUCH_PAGE;
    paintComponent(g);
    return PAGE_EXISTS;