/* * Copyright (C) 2013 The Android Open Source Project * * 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 com.abifog.lokiboard.latin.settings; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.graphics.Color; import android.graphics.PorterDuff; import android.preference.DialogPreference; import android.util.AttributeSet; import android.view.View; import android.widget.SeekBar; import android.widget.TextView; import com.abifog.lokiboard.R; public final class ColorDialogPreference extends DialogPreference implements SeekBar.OnSeekBarChangeListener { public interface ValueProxy { int readValue(final String key); void writeDefaultValue(final String key); void writeValue(final int value, final String key); } private TextView mValueView; private SeekBar mSeekBarRed; private SeekBar mSeekBarGreen; private SeekBar mSeekBarBlue; private ValueProxy mValueProxy; public ColorDialogPreference(final Context context, final AttributeSet attrs) { super(context, attrs); setDialogLayoutResource(R.layout.color_dialog); } public void setInterface(final ValueProxy proxy) { mValueProxy = proxy; } @Override protected View onCreateDialogView() { final View view = super.onCreateDialogView(); mSeekBarRed = (SeekBar)view.findViewById(R.id.seek_bar_dialog_bar_red); mSeekBarRed.setMax(255); mSeekBarRed.setOnSeekBarChangeListener(this); mSeekBarRed.getProgressDrawable().setColorFilter(Color.RED, PorterDuff.Mode.SRC_IN); mSeekBarRed.getThumb().setColorFilter(Color.RED, PorterDuff.Mode.SRC_IN); mSeekBarGreen = (SeekBar)view.findViewById(R.id.seek_bar_dialog_bar_green); mSeekBarGreen.setMax(255); mSeekBarGreen.setOnSeekBarChangeListener(this); mSeekBarGreen.getThumb().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN); mSeekBarGreen.getProgressDrawable().setColorFilter(Color.GREEN, PorterDuff.Mode.SRC_IN); mSeekBarBlue = (SeekBar)view.findViewById(R.id.seek_bar_dialog_bar_blue); mSeekBarBlue.setMax(255); mSeekBarBlue.setOnSeekBarChangeListener(this); mSeekBarBlue.getThumb().setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN); mSeekBarBlue.getProgressDrawable().setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN); mValueView = (TextView)view.findViewById(R.id.seek_bar_dialog_value); return view; } @Override protected void onBindDialogView(final View view) { final int color = mValueProxy.readValue(getKey()); mSeekBarRed.setProgress(Color.red(color)); mSeekBarGreen.setProgress(Color.green(color)); mSeekBarBlue.setProgress(Color.blue(color)); setHeaderText(color); } @Override protected void onPrepareDialogBuilder(final AlertDialog.Builder builder) { builder.setPositiveButton(android.R.string.ok, this) .setNegativeButton(android.R.string.cancel, this) .setNeutralButton(R.string.button_default, this); } @Override public void onClick(final DialogInterface dialog, final int which) { super.onClick(dialog, which); final String key = getKey(); if (which == DialogInterface.BUTTON_POSITIVE) { super.onClick(dialog, which); final int value = Color.rgb( mSeekBarRed.getProgress(), mSeekBarGreen.getProgress(), mSeekBarBlue.getProgress()); mValueProxy.writeValue(value, key); return; } if (which == DialogInterface.BUTTON_NEUTRAL) { super.onClick(dialog, which); mValueProxy.writeDefaultValue(key); return; } } @Override public void onProgressChanged(final SeekBar seekBar, final int progress, final boolean fromUser) { int color = Color.rgb( mSeekBarRed.getProgress(), mSeekBarGreen.getProgress(), mSeekBarBlue.getProgress()); setHeaderText(color); if (!fromUser) { seekBar.setProgress(progress); } } @Override public void onStartTrackingTouch(SeekBar seekBar) { } @Override public void onStopTrackingTouch(SeekBar seekBar) { } private void setHeaderText(int color) { mValueView.setText(getValueText(color)); boolean bright = Color.red(color) + Color.green(color) + Color.blue(color) > 128 * 3; mValueView.setTextColor(bright ? Color.BLACK : Color.WHITE); mValueView.setBackgroundColor(color); } private String getValueText(final int value) { String temp = Integer.toHexString(value); for (; temp.length() < 8; temp = "0" + temp); return temp.substring(2).toUpperCase(); } }