Android Open Source - helsinki-testbed2-android Color Picker Dialog

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2010 Daniel Nilsson/* w  ww  .j  av  a 2s.  c o  m*/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.margaritov.preference.colorpicker;

import android.app.Dialog;
import android.content.Context;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import fi.testbed2.R;

public class ColorPickerDialog 
  extends 
    Dialog 
  implements
    ColorPickerView.OnColorChangedListener,
    View.OnClickListener {

  private ColorPickerView mColorPicker;

  private ColorPickerPanelView mOldColor;
  private ColorPickerPanelView mNewColor;

  private OnColorChangedListener mListener;

  public interface OnColorChangedListener {
    public void onColorChanged(int color);
  }
  
  public ColorPickerDialog(Context context, int initialColor) {
    super(context);

    init(initialColor);
  }

  private void init(int color) {
    // To fight color banding.
    getWindow().setFormat(PixelFormat.RGBA_8888);

    setUp(color);

  }

  private void setUp(int color) {
    
    LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    
    View layout = inflater.inflate(R.layout.dialog_color_picker, null);

    setContentView(layout);

    setTitle(R.string.dialog_color_picker);
    
    mColorPicker = (ColorPickerView) layout.findViewById(R.id.color_picker_view);
    mOldColor = (ColorPickerPanelView) layout.findViewById(R.id.old_color_panel);
    mNewColor = (ColorPickerPanelView) layout.findViewById(R.id.new_color_panel);

        Button saveButton = (Button)layout.findViewById(R.id.color_picker_save);
        Button cancelButton = (Button)layout.findViewById(R.id.color_picker_cancel);

        ((LinearLayout) mOldColor.getParent()).setPadding(
      Math.round(mColorPicker.getDrawingOffset()), 
      0, 
      Math.round(mColorPicker.getDrawingOffset()), 
      0
    );

        saveButton.setOnClickListener(this);
        cancelButton.setOnClickListener(this);
    mColorPicker.setOnColorChangedListener(this);
    mOldColor.setColor(color);
    mColorPicker.setColor(color, true);

  }

  @Override
  public void onColorChanged(int color) {

    mNewColor.setColor(color);

    /*
    if (mListener != null) {
      mListener.onColorChanged(color);
    }
    */

  }

  public void setAlphaSliderVisible(boolean visible) {
    mColorPicker.setAlphaSliderVisible(visible);
  }
  
  /**
   * Set a OnColorChangedListener to get notified when the color
   * selected by the user has changed.
   * @param listener
   */
  public void setOnColorChangedListener(OnColorChangedListener listener){
    mListener = listener;
  }

  public int getColor() {
    return mColorPicker.getColor();
  }

  @Override
  public void onClick(View v) {
    if (v.getId() == R.id.color_picker_save) {
      if (mListener != null) {
        mListener.onColorChanged(mNewColor.getColor());
      }
    }
    dismiss();
  }
  
  @Override
  public Bundle onSaveInstanceState() {
    Bundle state = super.onSaveInstanceState();
    state.putInt("old_color", mOldColor.getColor());
    state.putInt("new_color", mNewColor.getColor());
    return state;
  }
  
  @Override
  public void onRestoreInstanceState(Bundle savedInstanceState) {
    super.onRestoreInstanceState(savedInstanceState);
    mOldColor.setColor(savedInstanceState.getInt("old_color"));
    mColorPicker.setColor(savedInstanceState.getInt("new_color"), true);
  }
}

Java Source Code List

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