Android Open Source - callmeter Ambil Warna Dialog

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License

The source code is released under:
GNU General Public License
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Java Source Code

package yuku.ambilwarna;
//from  w  w  w.  jav  a  2  s. c om
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AbsoluteLayout;
import android.widget.EditText;
import android.widget.ImageView;

import de.ub0r.android.callmeter.R;
import de.ub0r.android.logg0r.Log;

@SuppressWarnings("deprecation")
public class AmbilWarnaDialog implements TextWatcher {
  private static final String TAG = "AmbilWarnaDialog";

  public interface OnAmbilWarnaListener {
    void onReset(AmbilWarnaDialog dialog);

    void onCancel(AmbilWarnaDialog dialog);

    void onOk(AmbilWarnaDialog dialog, int color);
  }

  AlertDialog dialog;
  OnAmbilWarnaListener listener;
  View viewHue;
  AmbilWarnaKotak viewKotak;
  ImageView panah;
  View viewWarnaLama;
  View viewWarnaBaru;
  EditText viewEditText;
  ImageView viewKeker;

  float satudp;
  int warnaLama;
  int warnaBaru;
  float hue;
  float sat;
  float val;
  float ukuranUiDp = 240.f;
  float ukuranUiPx; // diset di constructor

  public AmbilWarnaDialog(final Context context, final int color,
      final OnAmbilWarnaListener listener) {
    this.listener = listener;
    this.warnaLama = color;
    this.warnaBaru = color;
    Color.colorToHSV(color, this.tmp01);
    this.hue = this.tmp01[0];
    this.sat = this.tmp01[1];
    this.val = this.tmp01[2];

    this.satudp = context.getResources().getDimension(R.dimen.ambilwarna_satudp);
    this.ukuranUiPx = this.ukuranUiDp * this.satudp;
    Log.d(TAG, "satudp = ", this.satudp);
    Log.d(TAG, "ukuranUiPx=", this.ukuranUiPx);

    View view = LayoutInflater.from(context).inflate(R.layout.ambilwarna_dialog, null);
    this.viewHue = view.findViewById(R.id.ambilwarna_viewHue);
    this.viewKotak = (AmbilWarnaKotak) view.findViewById(R.id.ambilwarna_viewKotak);
    this.panah = (ImageView) view.findViewById(R.id.ambilwarna_panah);
    this.viewWarnaLama = view.findViewById(R.id.ambilwarna_warnaLama);
    this.viewWarnaBaru = view.findViewById(R.id.ambilwarna_warnaBaru);
    this.viewKeker = (ImageView) view.findViewById(R.id.ambilwarna_keker);
    this.viewEditText = (EditText) view.findViewById(R.id.ambilwarna_edittext);

    this.letakkanPanah();
    this.letakkanKeker();
    this.viewKotak.setHue(this.hue);
    this.viewWarnaLama.setBackgroundColor(color);
    this.viewWarnaBaru.setBackgroundColor(color);
    this.updateEditText();

    this.viewHue.setOnTouchListener(new View.OnTouchListener() {
      @Override
      public boolean onTouch(final View v, final MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_MOVE
            || event.getAction() == MotionEvent.ACTION_DOWN
            || event.getAction() == MotionEvent.ACTION_UP) {

          float y = event.getY(); // dalam px, bukan dp
          if (y < 0.f) {
            y = 0.f;
          }
          if (y > AmbilWarnaDialog.this.ukuranUiPx) {
            y = AmbilWarnaDialog.this.ukuranUiPx - 0.001f;
          }

          AmbilWarnaDialog.this.hue = 360.f - 360.f / AmbilWarnaDialog.this.ukuranUiPx
              * y;
          if (AmbilWarnaDialog.this.hue == 360.f) {
            AmbilWarnaDialog.this.hue = 0.f;
          }

          AmbilWarnaDialog.this.warnaBaru = AmbilWarnaDialog.this.hitungWarna();
          // update view
          AmbilWarnaDialog.this.viewKotak.setHue(AmbilWarnaDialog.this.hue);
          AmbilWarnaDialog.this.letakkanPanah();
          AmbilWarnaDialog.this.viewWarnaBaru
              .setBackgroundColor(AmbilWarnaDialog.this.warnaBaru);
          AmbilWarnaDialog.this.updateEditText();

          return true;
        }
        return false;
      }
    });
    this.viewKotak.setOnTouchListener(new View.OnTouchListener() {
      @Override
      public boolean onTouch(final View v, final MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_MOVE
            || event.getAction() == MotionEvent.ACTION_DOWN
            || event.getAction() == MotionEvent.ACTION_UP) {

          float x = event.getX(); // dalam px, bukan dp
          float y = event.getY(); // dalam px, bukan dp

          if (x < 0.f) {
            x = 0.f;
          }
          if (x > AmbilWarnaDialog.this.ukuranUiPx) {
            x = AmbilWarnaDialog.this.ukuranUiPx;
          }
          if (y < 0.f) {
            y = 0.f;
          }
          if (y > AmbilWarnaDialog.this.ukuranUiPx) {
            y = AmbilWarnaDialog.this.ukuranUiPx;
          }

          AmbilWarnaDialog.this.sat = (1.f / AmbilWarnaDialog.this.ukuranUiPx * x);
          AmbilWarnaDialog.this.val = 1.f - (1.f / AmbilWarnaDialog.this.ukuranUiPx * y);

          AmbilWarnaDialog.this.warnaBaru = AmbilWarnaDialog.this.hitungWarna();
          // update view
          AmbilWarnaDialog.this.letakkanKeker();
          AmbilWarnaDialog.this.viewWarnaBaru
              .setBackgroundColor(AmbilWarnaDialog.this.warnaBaru);
          AmbilWarnaDialog.this.updateEditText();

          return true;
        }
        return false;
      }
    });
    this.viewEditText.addTextChangedListener(this);

    this.dialog = new AlertDialog.Builder(context)
        .setView(view)
        .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
          @Override
          public void onClick(final DialogInterface dialog, final int which) {
            if (AmbilWarnaDialog.this.listener != null) {
              AmbilWarnaDialog.this.listener.onOk(AmbilWarnaDialog.this,
                  AmbilWarnaDialog.this.warnaBaru);
            }
          }
        })
        .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
          @Override
          public void onClick(final DialogInterface dialog, final int which) {
            if (AmbilWarnaDialog.this.listener != null) {
              AmbilWarnaDialog.this.listener.onCancel(AmbilWarnaDialog.this);
            }
          }
        }).setNeutralButton(R.string.reset, new DialogInterface.OnClickListener() {
          @Override
          public void onClick(final DialogInterface dialog, final int which) {
            if (AmbilWarnaDialog.this.listener != null) {
              AmbilWarnaDialog.this.listener.onReset(AmbilWarnaDialog.this);
            }
          }
        }).create();

  }

  @SuppressWarnings("deprecation")
  protected void letakkanPanah() {
    float y = this.ukuranUiPx - (this.hue * this.ukuranUiPx / 360.f);
    if (y == this.ukuranUiPx) {
      y = 0.f;
    }

    AbsoluteLayout.LayoutParams layoutParams = (AbsoluteLayout.LayoutParams) this.panah
        .getLayoutParams();
    layoutParams.y = (int) (y + 4);
    this.panah.setLayoutParams(layoutParams);
  }

  @SuppressWarnings("deprecation")
  protected void letakkanKeker() {
    float x = this.sat * this.ukuranUiPx;
    float y = (1.f - this.val) * this.ukuranUiPx;

    AbsoluteLayout.LayoutParams layoutParams = (AbsoluteLayout.LayoutParams) this.viewKeker
        .getLayoutParams();
    layoutParams.x = (int) (x + 3);
    layoutParams.y = (int) (y + 3);
    this.viewKeker.setLayoutParams(layoutParams);
  }

  float[] tmp01 = new float[3];

  private int hitungWarna() {
    this.tmp01[0] = this.hue;
    this.tmp01[1] = this.sat;
    this.tmp01[2] = this.val;
    return Color.HSVToColor(this.tmp01);
  }

  public void show() {
    this.dialog.show();
  }

  public static String colorToString(final int color) {
    StringBuilder sb = new StringBuilder(9);
    sb.append("#");
    // alpha
    int i = Color.alpha(color);
    if (i <= 0xf) {
      sb.append("0");
    }
    sb.append(Integer.toHexString(i));
    // red
    i = Color.red(color);
    if (i <= 0xf) {
      sb.append("0");
    }
    sb.append(Integer.toHexString(i));
    // green
    i = Color.green(color);
    if (i <= 0xf) {
      sb.append("0");
    }
    sb.append(Integer.toHexString(i));
    // blue
    i = Color.blue(color);
    if (i <= 0xf) {
      sb.append("0");
    }
    sb.append(Integer.toHexString(i));
    return sb.toString();
  }

  private void updateEditText() {
    int color = this.hitungWarna();
    String s = colorToString(color);
    this.viewEditText.removeTextChangedListener(this);
    this.viewEditText.setText(s);
    this.viewEditText.addTextChangedListener(this);
  }

  @Override
  public void onTextChanged(final CharSequence s, final int start, final int before,
      final int count) {
    String c = s.toString().toLowerCase();
    if (c.length() == 0) {
      this.viewEditText.setText("#");
      this.viewEditText.setSelection(1);
      return;
    }
    String subc = c.substring(1);
    String check = subc.replaceAll("[^0-9a-f]", "");
    if (!check.equals(subc)) {
      Log.w(TAG, "invalid color: " + c);
      this.viewEditText.setText("#" + check);
      this.viewEditText.setSelection(this.viewEditText.getText().length());
      return;
    }
    if (c.length() == 9) {
      try {
        int color = Long.decode(c).intValue();
        Color.colorToHSV(color, this.tmp01);
        this.hue = this.tmp01[0];
        this.sat = this.tmp01[1];
        this.val = this.tmp01[2];
        this.viewKotak.setHue(this.hue);
        this.viewWarnaBaru.setBackgroundColor(color);
        this.letakkanPanah();
        this.letakkanKeker();
        this.warnaBaru = color;
      } catch (NumberFormatException e) {
        Log.w(TAG, "parse error: " + c + " is not a color", e);
      }
    }
  }

  @Override
  public void beforeTextChanged(final CharSequence s, final int start, final int count,
      final int after) {
    // nothing to do
  }

  @Override
  public void afterTextChanged(final Editable s) {
    // nothing to do
  }
}
Java Source Code List
