TextIcon.java

package jackpal.androidterm.shortcuts;

import android.graphics.  Bitmap;
import android.graphics.  Bitmap.Config;
import android.graphics.  Canvas;
import android.graphics.  Paint;
import android.graphics.  Paint.Align;
import android.graphics.  Rect;
import android.util.      FloatMath;
import java.lang.         Float;

public class TextIcon
{
  ////////////////////////////////////////////////////////////
  public static Bitmap getTextIcon(String text, int color, int width, int height)
  {
    text=   text.    trim();
    String  lines[]= text.split("\\s*\n\\s*");
    int     nLines=  lines.length;
    Rect    R=       new Rect();
    Paint   p=       new Paint(Paint.ANTI_ALIAS_FLAG);
            p.       setShadowLayer(2, 10, 10, 0xFF000000);
            p.       setColor(color);
            p.       setSubpixelText(true);
            p.       setTextSize(256);
            p.       setTextAlign(Align.CENTER);
    float   HH[]=    new float[nLines];
    float   H=       0f;
    float   W=       0f;
    for(int i=0; i<nLines; ++i)
    {
            p.       getTextBounds(lines[i], 0, lines[i].length(), R);
      float h=       Float.valueOf(Math.abs(R.top-R.bottom));
      float w=       Float.valueOf(Math.abs(R.right-R.left));
      if(nLines>1)   h+=0.1f*h; // Add space between lines.
      HH[i]=         h;
      H+=            h;
      if(w>W)        W=w;
    }
    float   f=       ((float)width)*H/((float)height);
    int     hBitmap= (int)H;
    int     wBitmap= (int)W;
    if(W<f) {wBitmap=(int)FloatMath.ceil(f); hBitmap=(int)FloatMath.ceil(H);}
    else    {wBitmap=(int)FloatMath.ceil(W); hBitmap=(int)FloatMath.ceil(height*wBitmap/width);}

    Bitmap  b=       Bitmap.createBitmap(wBitmap, hBitmap, Config.ARGB_8888);
            b.       setDensity(Bitmap.DENSITY_NONE);
    Canvas  c=       new Canvas(b);

    W=wBitmap/2f;
    float top=    hBitmap/2f-H/2f+HH[0]/2f;
    for(int i=0; i<nLines; ++i)
    {
      top+= HH[i]/2f;
      c.    drawText(lines[i], W, top, p);
      top+= HH[i]/2f;
    }
    return(
      Bitmap.createScaledBitmap(
        b
      , width
      , height
      , true
      )
    );
  }
  ////////////////////////////////////////////////////////////
}