ColorPickerDialog.java

/*
 * Copyright (C) 2010 Daniel Nilsson
 * Copyright (C) 2013 Slimroms
 *
 * 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.Color;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.LinearLayout;

import com.android.settings.R;

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

    private ColorPickerView mColorPicker;

    private ColorPickerPanelView mOldColor;
    private ColorPickerPanelView mNewColor;

    private ColorPickerPanelView mWhite;
    private ColorPickerPanelView mBlack;
    private ColorPickerPanelView mCyan;
    private ColorPickerPanelView mRed;
    private ColorPickerPanelView mGreen;
    private ColorPickerPanelView mYellow;

    private EditText mHex;
    private ImageButton mSetButton;

    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 branding.
        getWindow().setFormat(PixelFormat.RGBA_8888);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        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);

        mWhite = (ColorPickerPanelView) layout.findViewById(R.id.white_panel);
        mBlack = (ColorPickerPanelView) layout.findViewById(R.id.black_panel);
        mCyan = (ColorPickerPanelView) layout.findViewById(R.id.cyan_panel);
        mRed = (ColorPickerPanelView) layout.findViewById(R.id.red_panel);
        mGreen = (ColorPickerPanelView) layout.findViewById(R.id.green_panel);
        mYellow = (ColorPickerPanelView) layout.findViewById(R.id.yellow_panel);

        mHex = (EditText) layout.findViewById(R.id.hex);
        mSetButton = (ImageButton) layout.findViewById(R.id.enter);

        ((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);

        setColorAndClickAction(mWhite, Color.WHITE);
        setColorAndClickAction(mBlack, Color.BLACK);
        setColorAndClickAction(mCyan, 0xff33b5e5);
        setColorAndClickAction(mRed, Color.RED);
        setColorAndClickAction(mGreen, Color.GREEN);
        setColorAndClickAction(mYellow, Color.YELLOW);

        if (mHex != null) {
            mHex.setText(ColorPickerPreference.convertToARGB(color));
        }
        if (mSetButton != null) {
           mSetButton.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    String text = mHex.getText().toString();
                    try {
                        int newColor = ColorPickerPreference.convertToColorInt(text);
                        mColorPicker.setColor(newColor, true);
                    } catch (Exception e) {
                    }
                }
            });
        }
    }

    @Override
    public void onColorChanged(int color) {

        mNewColor.setColor(color);
        try {
            if (mHex != null) {
                mHex.setText(ColorPickerPreference.convertToARGB(color));
            }
        } catch (Exception e) {

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

    }

    public void setAlphaSliderVisible(boolean visible) {
        mColorPicker.setAlphaSliderVisible(visible);
    }

    public void setColorAndClickAction(ColorPickerPanelView previewRect, final int color) {
        if (previewRect != null) {
            previewRect.setColor(color);
            previewRect.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    try {
                        mColorPicker.setColor(color, true);
                    } catch (Exception e) {
                    }
                }
            });
        }
    }

    /**
     * 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);
    }

}