/*
* Copyright (C) 2014 The CyanogenMod 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 org.cyanogenmod.wallpapers.photophase.widgets;
import afzkl.development.mColorPicker.views.ColorDialogView;
import afzkl.development.mColorPicker.views.ColorPanelView;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.SharedPreferences;
import android.content.res.TypedArray;
import android.os.Parcel;
import android.os.Parcelable;
import android.preference.DialogPreference;
import android.preference.Preference;
import android.util.AttributeSet;
import android.view.View;
import org.cyanogenmod.wallpapers.photophase.R;
/**
* A {@link Preference} that allow to select/pick a color in a new window dialog.
*/
public class ColorPickerPreference extends DialogPreference {
private ColorPanelView mColorPicker;
private int mColor;
private ColorDialogView mColorDlg;
/**
* Constructor of ColorPickerPreference
*
* @param context The current context
*/
public ColorPickerPreference(Context context) {
this(context, null);
}
/**
* Constructor of ColorPickerPreference
*
* @param context The current context
* @param attrs The attributes of the XML tag that is inflating the preference.
*/
public ColorPickerPreference(Context context, AttributeSet attrs) {
super(context, attrs);
setWidgetLayoutResource(R.layout.color_picker_pref_item);
}
/**
* Returns the color of the picker.
*
* @return The color of the picker.
*/
public int getColor() {
return this.mColor;
}
/**
* Sets the color of the picker and saves it to the {@link SharedPreferences}.
*
* @param color The new color.
*/
public void setColor(int color) {
// Always persist/notify the first time; don't assume the field's default of false.
final boolean changed = this.mColor != color;
if (changed) {
this.mColor = color;
// when called from onSetInitialValue the view is still not set
if (this.mColorPicker != null) {
this.mColorPicker.setColor(color);
}
persistInt(color);
if (changed) {
notifyDependencyChange(shouldDisableDependents());
notifyChanged();
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected Object onGetDefaultValue(TypedArray a, int index) {
return Integer.valueOf(a.getColor(index, 0));
}
/**
* {@inheritDoc}
*/
@Override
protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
setColor(restoreValue ? getPersistedInt(0) : ((Integer)defaultValue).intValue());
}
/**
* {@inheritDoc}
*/
@Override
protected void onPrepareDialogBuilder(Builder builder) {
super.onPrepareDialogBuilder(builder);
// Configure the dialog
this.mColorDlg = new ColorDialogView(getContext());
this.mColorDlg.setColor(this.mColor);
this.mColorDlg.showAlphaSlider(true);
this.mColorDlg.setAlphaSliderText(
getContext().getString(R.string.color_picker_alpha_slider_text));
this.mColorDlg.setCurrentColorText(
getContext().getString(R.string.color_picker_current_text));
this.mColorDlg.setNewColorText(
getContext().getString(R.string.color_picker_new_text));
this.mColorDlg.setColorLabelText(
getContext().getString(R.string.color_picker_color));
builder.setView(this.mColorDlg);
// The color is selected by the user and confirmed by clicking ok
builder.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
@SuppressWarnings("synthetic-access")
public void onClick(DialogInterface dialog, int which) {
int color = ColorPickerPreference.this.mColorDlg.getColor();
if (callChangeListener(Integer.valueOf(color))) {
setColor(color);
}
dialog.dismiss();
}
});
}
/**
* {@inheritDoc}
*/
@Override
protected void onBindView(View view) {
super.onBindView(view);
View v = view.findViewById(R.id.color_picker);
if (v != null && v instanceof ColorPanelView) {
this.mColorPicker = (ColorPanelView)v;
this.mColorPicker.setColor(this.mColor);
}
}
/**
* {@inheritDoc}
*/
@Override
protected Parcelable onSaveInstanceState() {
final Parcelable superState = super.onSaveInstanceState();
if (isPersistent()) {
// No need to save instance state since it's persistent
return superState;
}
final SavedState myState = new SavedState(superState);
myState.color = getColor();
return myState;
}
/**
* {@inheritDoc}
*/
@Override
protected void onRestoreInstanceState(Parcelable state) {
if (state == null || !state.getClass().equals(SavedState.class)) {
// Didn't save state for us in onSaveInstanceState
super.onRestoreInstanceState(state);
return;
}
SavedState myState = (SavedState) state;
super.onRestoreInstanceState(myState.getSuperState());
setColor(myState.color);
}
/**
* A class for managing the instance state of a {@link ColorPickerPreference}.
*/
static class SavedState extends BaseSavedState {
int color;
/**
* Constructor of SavedState
*
* @param source The source
*/
public SavedState(Parcel source) {
super(source);
this.color = source.readInt();
}
/**
* Constructor of SavedState
*
* @param superState The parcelable state
*/
public SavedState(Parcelable superState) {
super(superState);
}
/**
* {@inheritDoc}
*/
@Override
public void writeToParcel(Parcel dest, int flags) {
super.writeToParcel(dest, flags);
dest.writeInt(this.color);
}
/**
* A class that generates instances of the SavedState
class from a Parcel.
*/
@SuppressWarnings("hiding")
public static final Parcelable.Creator CREATOR =
new Parcelable.Creator() {
/**
* {@inheritDoc}
*/
@Override
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
/**
* {@inheritDoc}
*/
@Override
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
}