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/*
* 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.android.colorpicker;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import com.android.colorpicker.ColorPickerSwatch.OnColorSelectedListener;
/**
* A dialog which takes in as input an array of colors and creates a palette allowing the user to
* select a specific color swatch, which invokes a listener.
*/
public class ColorPickerDialog extends DialogFragment implements OnColorSelectedListener {
public static final int SIZE_LARGE = 1;
public static final int SIZE_SMALL = 2;
protected AlertDialog mAlertDialog;
private static final String KEY_COLORS = "colors";
private static final String KEY_CURRENT_COLOR = "current_color";
private static final String KEY_COLUMNS = "columns";
private static final String KEY_SIZE = "size";
protected String mTitle;
protected int mTitleResId;
protected int[] mColors;
protected int mSelectedColor;
protected int mColumns;
protected int mSize;
private ColorPickerPalette mPalette;
private ProgressBar mProgress;
protected OnColorSelectedListener mListener;
public ColorPickerDialog() {
// Empty constructor required for dialog fragments.
}
public ColorPickerDialog(int titleResId, int[] colors, int selectedColor,
int columns, int size) {
mTitleResId = titleResId;
mColors = colors;
mSelectedColor = selectedColor;
mColumns = columns;
mSize = size;
}
public void setOnColorSelectedListener(OnColorSelectedListener listener) {
mListener = listener;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final Activity activity = getActivity();
if (savedInstanceState != null) {
mColors = (int[]) savedInstanceState.getSerializable(KEY_COLORS);
mSelectedColor = savedInstanceState.getInt(KEY_CURRENT_COLOR);
mColumns = savedInstanceState.getInt(KEY_COLUMNS);
mSize = savedInstanceState.getInt(KEY_SIZE);
}
View view = LayoutInflater.from(getActivity()).inflate(R.layout.color_picker_dialog, null);
mProgress = (ProgressBar) view.findViewById(android.R.id.progress);
mPalette = (ColorPickerPalette) view.findViewById(R.id.color_picker);
mPalette.init(mSize, mColumns, this);
if (mColors != null) {
showPalette();
}
if (mTitle == null) {
mTitle = activity.getString(mTitleResId);
}
mAlertDialog = new AlertDialog.Builder(activity)
.setTitle(mTitle)
.setView(view)
.create();
return mAlertDialog;
}
@Override
public void onColorSelected(int color) {
if (mListener != null) {
mListener.onColorSelected(color);
}
if (getTargetFragment() instanceof OnColorSelectedListener) {
final OnColorSelectedListener listener =
(OnColorSelectedListener) getTargetFragment();
listener.onColorSelected(color);
}
if (color != mSelectedColor) {
mSelectedColor = color;
// Redraw palette to show checkmark on newly selected color before dismissing.
mPalette.drawPalette(mColors, mSelectedColor);
}
dismiss();
}
public void showPalette() {
mProgress.setVisibility(View.GONE);
mPalette.setVisibility(View.VISIBLE);
mPalette.drawPalette(mColors, mSelectedColor);
}
public void showProgress() {
mProgress.setVisibility(View.VISIBLE);
mPalette.setVisibility(View.GONE);
}
public void setColors(int[] colors) {
if (colors == null) {
return;
}
mColors = colors;
showPalette();
}
public void setColors(int[] colors, int selectedColor) {
mSelectedColor = selectedColor;
setColors(colors);
}
public void setSelectedColor(int color) {
if (mSelectedColor != color) {
setColors(mColors, color);
}
}
public int[] getColors() {
return mColors;
}
public int getSelectedColor() {
return mSelectedColor;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putSerializable(KEY_COLORS, mColors);
outState.putInt(KEY_CURRENT_COLOR, mSelectedColor);
outState.putInt(KEY_COLUMNS, mColumns);
outState.putInt(KEY_SIZE, mSize);
}
@Override
public void onDestroyView() {
if (getDialog() != null && getRetainInstance()) {
getDialog().setDismissMessage(null);
}
super.onDestroyView();
}
}
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