Android Open Source - callmeter Ambil Warna Kotak

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License

The source code is released under:

GNU General Public License

Java Source Code

package yuku.ambilwarna;
//from   w w w.  j ava  2  s . com
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ComposeShader;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.Shader;
import android.graphics.Shader.TileMode;
import android.util.AttributeSet;
import android.view.View;
import de.ub0r.android.callmeter.R;

public class AmbilWarnaKotak extends View {

  Paint paint;
  Shader dalam;
  Shader luar;
  float hue;
  float satudp;
  float ukuranUiDp = 240.f;
  float ukuranUiPx; // diset di constructor
  float[] tmp00 = new float[3];

  public AmbilWarnaKotak(final Context context) {
    this(context, null);
  }

  public AmbilWarnaKotak(final Context context, final AttributeSet attrs) {
    this(context, attrs, 0);
  }

  public AmbilWarnaKotak(final Context context, final AttributeSet attrs, final int defStyle) {
    super(context, attrs, defStyle);

    this.satudp = context.getResources().getDimension(R.dimen.ambilwarna_satudp);
    this.ukuranUiPx = this.ukuranUiDp * this.satudp;
  }

  @Override
  protected void onDraw(final Canvas canvas) {
    super.onDraw(canvas);

    if (this.paint == null) {
      this.paint = new Paint();
      this.luar = new LinearGradient(0.f, 0.f, 0.f, this.ukuranUiPx, 0xffffffff, 0xff000000,
          TileMode.CLAMP);
    }

    this.tmp00[1] = this.tmp00[2] = 1.f;
    this.tmp00[0] = this.hue;
    int rgb = Color.HSVToColor(this.tmp00);

    this.dalam = new LinearGradient(0.f, 0.f, this.ukuranUiPx, 0.f, 0xffffffff, rgb,
        TileMode.CLAMP);
    ComposeShader shader = new ComposeShader(this.luar, this.dalam, PorterDuff.Mode.MULTIPLY);

    this.paint.setShader(shader);

    canvas.drawRect(0.f, 0.f, this.ukuranUiPx, this.ukuranUiPx, this.paint);
  }

  void setHue(final float hue) {
    this.hue = hue;
    this.invalidate();
  }
}

Java Source Code List

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