Android Open Source - ParticlePlay Color Picker Dialog Pref

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.droidinteractive.particleplay.preferences;
/*//w w w .j  a va  2 s. c  o m
 * Copyright (c) 2010 Ragdoll Games
 * Copyright (c) 2010-2014 Droid Interactive
 * 
 * This file is part of Particle Play.
 * 
 * Particle Play is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Particle Play is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Particle Play. If not, see <http://www.gnu.org/licenses/>.
 */
import com.droidinteractive.particleplay.R;

import android.app.Dialog;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.text.Editable;
import android.text.InputFilter;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import android.widget.LinearLayout;

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

  private ColorPickerView mColorPicker;

  private ColorPickerPanelView mOldColor;
  private ColorPickerPanelView mNewColor;
  
  private EditText mHexVal;
  private boolean mHexInternalTextChange;
  private boolean mHexValueEnabled = false;
  private ColorStateList mHexDefaultTextColor;

  private OnColorChangedListener mListener;

  public interface OnColorChangedListener {
    public void onColorChanged(int color);
  }
  
  public ColorPickerDialogPref(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);
    
    mHexVal = (EditText) layout.findViewById(R.id.hex_val);
    mHexDefaultTextColor = mHexVal.getTextColors();
    mHexVal.addTextChangedListener(new TextWatcher() {
      @Override
      public void onTextChanged(CharSequence s, int start, int before, int count) {}
      @Override
      public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
      @Override
      public void afterTextChanged(Editable s) {
        if (mHexValueEnabled) {
          if (mHexInternalTextChange) return;
          
          if (s.length() > 5 || s.length() < 10) {
            try {
              int c = ColorPickerPreference.convertToColorInt(s.toString());
              mColorPicker.setColor(c, true);
              mHexVal.setTextColor(mHexDefaultTextColor);
            } catch (NumberFormatException e) {
              mHexVal.setTextColor(Color.RED);
            }
          } else
            mHexVal.setTextColor(Color.RED);
        }
      }
    });
    
    ((LinearLayout) mOldColor.getParent()).setPadding(
      Math.round(mColorPicker.getDrawingOffset()), 
      0, 
      Math.round(mColorPicker.getDrawingOffset()), 
      0
    );  
    
    mOldColor.setOnClickListener(this);
    mNewColor.setOnClickListener(this);
    mColorPicker.setOnColorChangedListener(this);
    mOldColor.setColor(color);
    mColorPicker.setColor(color, true);

  }

  @Override
  public void onColorChanged(int color) {

    mNewColor.setColor(color);
    
    if (mHexValueEnabled)
      updateHexValue(color);

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

  }
  
  public void setHexValueEnabled(boolean enable) {
    mHexValueEnabled = enable;
    if (enable) {
      mHexVal.setVisibility(View.VISIBLE);
      updateHexLengthFilter();
      updateHexValue(getColor());
    }
    else
      mHexVal.setVisibility(View.GONE);
  }
  
  public boolean getHexValueEnabled() {
    return mHexValueEnabled;
  }
  
  private void updateHexLengthFilter() {
    if (getAlphaSliderVisible())
      mHexVal.setFilters(new InputFilter[] {new InputFilter.LengthFilter(9)});
    else
      mHexVal.setFilters(new InputFilter[] {new InputFilter.LengthFilter(7)});
  }

  private void updateHexValue(int color) {
    mHexInternalTextChange = true;
    if (getAlphaSliderVisible())
      mHexVal.setText(ColorPickerPreference.convertToARGB(color));
    else
      mHexVal.setText(ColorPickerPreference.convertToRGB(color));
    mHexInternalTextChange = false;
  }

  public void setAlphaSliderVisible(boolean visible) {
    mColorPicker.setAlphaSliderVisible(visible);
    if (mHexValueEnabled) {
      updateHexLengthFilter();
      updateHexValue(getColor());
    }
  }
  
  public boolean getAlphaSliderVisible() {
    return mColorPicker.getAlphaSliderVisible();
  }
  
  /**
   * 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.new_color_panel) {
      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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