/*
 * Copyright (C) 2010-2011 Mike Novak <michael.novakjr@gmail.com>
 *
 * 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.bt.download.android.gui.views.preference;

import android.content.Context;
import android.content.DialogInterface;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.NumberPicker;

import com.bt.download.android.R;

public class NumberPickerPreference extends DialogPreference {
    private NumberPicker mPicker;
    private int mStartRange;
    private int mEndRange;
    private int mDefault;

    public NumberPickerPreference(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);

        if (attrs == null) {
            return;
        }

        TypedArray arr = context.obtainStyledAttributes(attrs, R.styleable.numberpicker);
        mStartRange = arr.getInteger(R.styleable.numberpicker_picker_startRange, 0);
        mEndRange = arr.getInteger(R.styleable.numberpicker_picker_endRange, 200);
        mDefault = arr.getInteger(R.styleable.numberpicker_picker_defaultValue, 0);

        arr.recycle();

        setDialogLayoutResource(R.layout.dialog_preference_number_picker);
    }

    public NumberPickerPreference(Context context, AttributeSet attrs) {
        this(context, attrs, android.R.attr.dialogPreferenceStyle);
    }

    public NumberPickerPreference(Context context) {
        this(context, null);
    }

    @Override
    protected void onBindDialogView(View view) {
        super.onBindDialogView(view);
        mPicker = (NumberPicker) view.findViewById(R.id.pref_num_picker);
        setRange(mStartRange, mEndRange);
        mPicker.setValue((int) getValue());
    }

    public void onClick(DialogInterface dialog, int which) {
        switch (which) {
        case DialogInterface.BUTTON_POSITIVE:
            saveValue(mPicker.getValue());
            break;
        default:
            break;
        }
    }

    public void setRange(int start, int end) {
        mPicker.setMinValue(start);
        mPicker.setMaxValue(end);
    }

    private void saveValue(long val) {
        getEditor().putLong(getKey(), val).commit();
        notifyChanged();
    }

    private long getValue() {
        return getSharedPreferences().getLong(getKey(), mDefault);
    }
}