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/*
* Copyright (C) 2012 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.camera;
import android.graphics.drawable.Drawable;
import android.util.Log;
import com.android.camera.CameraPreference.OnPreferenceChangedListener;
import com.android.camera.drawable.TextDrawable;
import com.android.camera.ui.PieItem;
import com.android.camera.ui.PieItem.OnClickListener;
import com.android.camera.ui.PieRenderer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class PieController {
private static String TAG = "CAM_piecontrol";
protected static final int MODE_PHOTO = 0;
protected static final int MODE_VIDEO = 1;
protected CameraActivity mActivity;
protected PreferenceGroup mPreferenceGroup;
protected OnPreferenceChangedListener mListener;
protected PieRenderer mRenderer;
private List<IconListPreference> mPreferences;
private Map<IconListPreference, PieItem> mPreferenceMap;
private Map<IconListPreference, String> mOverrides;
public void setListener(OnPreferenceChangedListener listener) {
mListener = listener;
}
public PieController(CameraActivity activity, PieRenderer pie) {
mActivity = activity;
mRenderer = pie;
mPreferences = new ArrayList<IconListPreference>();
mPreferenceMap = new HashMap<IconListPreference, PieItem>();
mOverrides = new HashMap<IconListPreference, String>();
}
public void initialize(PreferenceGroup group) {
mRenderer.clearItems();
setPreferenceGroup(group);
}
public void onSettingChanged(ListPreference pref) {
if (mListener != null) {
mListener.onSharedPreferenceChanged();
}
}
protected void setCameraId(int cameraId) {
ListPreference pref = mPreferenceGroup.findPreference(CameraSettings.KEY_CAMERA_ID);
pref.setValue("" + cameraId);
}
protected PieItem makeItem(int resId) {
// We need a mutable version as we change the alpha
Drawable d = mActivity.getResources().getDrawable(resId).mutate();
return new PieItem(d, 0);
}
protected PieItem makeItem(CharSequence value) {
TextDrawable drawable = new TextDrawable(mActivity.getResources(), value);
return new PieItem(drawable, 0);
}
public void addItem(String prefKey, float center, float sweep) {
final IconListPreference pref =
(IconListPreference) mPreferenceGroup.findPreference(prefKey);
if (pref == null) return;
int[] iconIds = pref.getLargeIconIds();
int resid = -1;
if (!pref.getUseSingleIcon() && iconIds != null) {
// Each entry has a corresponding icon.
int index = pref.findIndexOfValue(pref.getValue());
resid = iconIds[index];
} else {
// The preference only has a single icon to represent it.
resid = pref.getSingleIcon();
}
PieItem item = makeItem(resid);
// use center and sweep to determine layout
item.setFixedSlice(center, sweep);
mRenderer.addItem(item);
mPreferences.add(pref);
mPreferenceMap.put(pref, item);
int nOfEntries = pref.getEntries().length;
if (nOfEntries > 1) {
for (int i = 0; i < nOfEntries; i++) {
PieItem inner = null;
if (iconIds != null) {
inner = makeItem(iconIds[i]);
} else {
inner = makeItem(pref.getEntries()[i]);
}
item.addItem(inner);
final int index = i;
inner.setOnClickListener(new OnClickListener() {
@Override
public void onClick(PieItem item) {
pref.setValueIndex(index);
reloadPreference(pref);
onSettingChanged(pref);
}
});
}
}
}
public void setPreferenceGroup(PreferenceGroup group) {
mPreferenceGroup = group;
}
public void reloadPreferences() {
mPreferenceGroup.reloadValue();
for (IconListPreference pref : mPreferenceMap.keySet()) {
reloadPreference(pref);
}
}
private void reloadPreference(IconListPreference pref) {
if (pref.getUseSingleIcon()) return;
PieItem item = mPreferenceMap.get(pref);
String overrideValue = mOverrides.get(pref);
int[] iconIds = pref.getLargeIconIds();
if (iconIds != null) {
// Each entry has a corresponding icon.
int index;
if (overrideValue == null) {
index = pref.findIndexOfValue(pref.getValue());
} else {
index = pref.findIndexOfValue(overrideValue);
if (index == -1) {
// Avoid the crash if camera driver has bugs.
Log.e(TAG, "Fail to find override value=" + overrideValue);
pref.print();
return;
}
}
item.setImageResource(mActivity, iconIds[index]);
} else {
// The preference only has a single icon to represent it.
item.setImageResource(mActivity, pref.getSingleIcon());
}
}
// Scene mode may override other camera settings (ex: flash mode).
public void overrideSettings(final String ... keyvalues) {
if (keyvalues.length % 2 != 0) {
throw new IllegalArgumentException();
}
for (IconListPreference pref : mPreferenceMap.keySet()) {
override(pref, keyvalues);
}
}
private void override(IconListPreference pref, final String ... keyvalues) {
mOverrides.remove(pref);
for (int i = 0; i < keyvalues.length; i += 2) {
String key = keyvalues[i];
String value = keyvalues[i + 1];
if (key.equals(pref.getKey())) {
mOverrides.put(pref, value);
PieItem item = mPreferenceMap.get(pref);
item.setEnabled(value == null);
break;
}
}
reloadPreference(pref);
}
}
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