| /* |
| * Copyright (C) 2008 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.calculator2; |
| |
| import android.app.Activity; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.util.Config; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.Window; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.ListView; |
| import android.content.res.Configuration; |
| |
| public class Calculator extends Activity { |
| EventListener mListener = new EventListener(); |
| private CalculatorDisplay mDisplay; |
| private Persist mPersist; |
| private History mHistory; |
| private Logic mLogic; |
| private PanelSwitcher mPanelSwitcher; |
| |
| private static final int CMD_CLEAR_HISTORY = 1; |
| private static final int CMD_BASIC_PANEL = 2; |
| private static final int CMD_ADVANCED_PANEL = 3; |
| |
| static final int BASIC_PANEL = 0; |
| static final int ADVANCED_PANEL = 1; |
| |
| private static final String LOG_TAG = "Calculator"; |
| private static final boolean DEBUG = false; |
| private static final boolean LOG_ENABLED = DEBUG ? Config.LOGD : Config.LOGV; |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| requestWindowFeature(Window.FEATURE_NO_TITLE); |
| setContentView(R.layout.main); |
| |
| mPersist = new Persist(this); |
| mHistory = mPersist.history; |
| |
| mDisplay = (CalculatorDisplay) findViewById(R.id.display); |
| |
| mLogic = new Logic(this, mHistory, mDisplay, (Button) findViewById(R.id.equal)); |
| HistoryAdapter historyAdapter = new HistoryAdapter(this, mHistory, mLogic); |
| mHistory.setObserver(historyAdapter); |
| View view; |
| mPanelSwitcher = (PanelSwitcher) findViewById(R.id.panelswitch); |
| |
| mListener.setHandler(mLogic, mPanelSwitcher); |
| |
| mDisplay.setOnKeyListener(mListener); |
| |
| |
| if ((view = findViewById(R.id.del)) != null) { |
| view.setOnClickListener(mListener); |
| view.setOnLongClickListener(mListener); |
| } |
| /* |
| if ((view = findViewById(R.id.clear)) != null) { |
| view.setOnClickListener(mListener); |
| } |
| */ |
| |
| /* |
| ListView historyPad = (ListView) findViewById(R.id.historyPad); |
| if (historyPad != null) { |
| historyPad.setAdapter(historyAdapter); |
| } |
| */ |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| super.onCreateOptionsMenu(menu); |
| MenuItem item; |
| |
| item = menu.add(0, CMD_CLEAR_HISTORY, 0, R.string.clear_history); |
| item.setIcon(R.drawable.clear_history); |
| |
| item = menu.add(0, CMD_ADVANCED_PANEL, 0, R.string.advanced); |
| item.setIcon(R.drawable.advanced); |
| |
| item = menu.add(0, CMD_BASIC_PANEL, 0, R.string.basic); |
| item.setIcon(R.drawable.simple); |
| |
| return true; |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| menu.findItem(CMD_BASIC_PANEL).setVisible(mPanelSwitcher != null && |
| mPanelSwitcher.getCurrentIndex() == ADVANCED_PANEL); |
| |
| menu.findItem(CMD_ADVANCED_PANEL).setVisible(mPanelSwitcher != null && |
| mPanelSwitcher.getCurrentIndex() == BASIC_PANEL); |
| |
| return true; |
| } |
| |
| @Override |
| public boolean onOptionsItemSelected(MenuItem item) { |
| switch (item.getItemId()) { |
| case CMD_CLEAR_HISTORY: |
| mHistory.clear(); |
| break; |
| |
| case CMD_BASIC_PANEL: |
| if (mPanelSwitcher != null && |
| mPanelSwitcher.getCurrentIndex() == ADVANCED_PANEL) { |
| mPanelSwitcher.moveRight(); |
| } |
| break; |
| |
| case CMD_ADVANCED_PANEL: |
| if (mPanelSwitcher != null && |
| mPanelSwitcher.getCurrentIndex() == BASIC_PANEL) { |
| mPanelSwitcher.moveLeft(); |
| } |
| break; |
| } |
| return super.onOptionsItemSelected(item); |
| } |
| |
| @Override |
| protected void onSaveInstanceState(Bundle icicle) { |
| // as work-around for ClassCastException in TextView on restart |
| // avoid calling superclass, to keep icicle empty |
| } |
| |
| @Override |
| public void onPause() { |
| super.onPause(); |
| mLogic.updateHistory(); |
| mPersist.save(); |
| } |
| |
| static void log(String message) { |
| if (LOG_ENABLED) { |
| Log.v(LOG_TAG, message); |
| } |
| } |
| } |