private void copy(Bitmap src, int x, int y, int width, int height, Bitmap dest) {
   int[] argbData = new int[width * height];
   src.getARGB(argbData, 0, width, x, y, width, height);
   for (int tx = 0; tx < dest.getWidth(); tx += width) {
     for (int ty = 0; ty < dest.getHeight(); ty += height) {
       dest.setARGB(argbData, 0, width, tx, ty, width, height);
     }
   }
 }
Пример #2
0
  public static Bitmap rotateImage(Bitmap oldB, int angle) {
    try {
      int w = oldB.getWidth();
      int h = oldB.getHeight();
      double angRad = (angle % 360) * (Math.PI / 180);
      Bitmap newB = new Bitmap(w, h);
      int[] oldD = new int[w * h];
      int[] newD = new int[w * h];
      oldB.getARGB(oldD, 0, w, 0, 0, w, h);

      int axisX = w / 2;
      int axisY = h / 2;

      for (int x = 0; x < oldD.length; x++) {
        int oldX = x % w;
        int oldY = x / w;
        int op = oldX - axisX;
        int adj = oldY - axisY;
        double oldT = MathUtilities.atan2(op, adj);
        double rad = Math.sqrt((op * op) + (adj * adj));
        double newT = oldT + angRad;
        int newX = (int) MathUtilities.round((rad * Math.sin(newT)) + (double) axisX);
        int newY = (int) MathUtilities.round((rad * Math.cos(newT)) + (double) axisY);
        if (newX < 0 || newY < 0 || newX >= w || newY >= h) {
          newD[x] = 0x00000000;
        } else {
          newD[x] = oldD[(newY * w) + newX];
        }
      }

      newB.setARGB(newD, 0, w, 0, 0, w, h);
      return newB;
    } catch (Exception e) {

    }
    return null;
  }
Пример #3
0
 public void run() {
   int ask = -1;
   if (undo != null)
     ask =
         Dialog.ask(
             "What Filter?",
             new String[] {"GrayScale", "Negative", "Sephia", "Termal", "Undo Filter"},
             0);
   else
     ask =
         Dialog.ask(
             "What Filter?", new String[] {"GrayScale", "Negative", "Sephia", "Termal"}, 0);
   if (ask < 4) {
     undo = new int[gbr.getWidth() * gbr.getHeight()];
     gbr.getARGB(undo, 0, gbr.getWidth(), 0, 0, gbr.getWidth(), gbr.getHeight());
     FilterImg.doit(gbr, ask);
   } else if (ask == 4) {
     if (undo != null) {
       gbr.setARGB(undo, 0, gbr.getWidth(), 0, 0, gbr.getWidth(), gbr.getHeight());
       undo = null;
     }
   }
   latar.invalidate();
 }