TermSettings.java

/*
 * Copyright (C) 2007 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.spartacusrex.spartacuside.util;

import android.content.SharedPreferences;
import android.view.KeyEvent;

/**
 * Terminal emulator settings
 */
public class TermSettings {
    private SharedPreferences mPrefs;

    private int mStatusBar   = 1;
    private int mCursorStyle = 0;
    private int mCursorBlink = 0;
    private int mFontSize = 12;
    private int mColorId = 1;
    private int mControlKeyId = 5; // Default to Volume Down
    private int mFnKeyId = 4; // Default to Volume Up
    private int mUseCookedIME = 0;
    private String mShell;
    private String mInitialCommand;

    private static final String STATUSBAR_KEY = "statusbar";
    private static final String CURSORSTYLE_KEY = "cursorstyle";
    private static final String CURSORBLINK_KEY = "cursorblink";
    private static final String FONTSIZE_KEY = "fontsize";
    private static final String COLOR_KEY = "color";
    private static final String CONTROLKEY_KEY = "controlkey";
    private static final String FNKEY_KEY = "fnkey";
    private static final String IME_KEY = "ime";
    private static final String SHELL_KEY = "shell";
    private static final String INITIALCOMMAND_KEY = "initialcommand";

    public static final int WHITE = 0xffffffff;
    public static final int BLACK = 0xff000000;
    public static final int BLUE =  0xff344ebd;
    public static final int GREEN = 0xff00ff00;
    public static final int AMBER = 0xffffb651;
    public static final int RED =   0xffff0113;

    public static final int[][] COLOR_SCHEMES = {{BLACK, WHITE}, {WHITE, BLACK}, {WHITE, BLUE}, {GREEN, BLACK}, {AMBER, BLACK}, {RED, BLACK}};

    /** An integer not in the range of real key codes. */
    public static final int KEYCODE_NONE = -1;

    public static final int CONTROL_KEY_ID_NONE = 7;
    public static final int[] CONTROL_KEY_SCHEMES = {
        KeyEvent.KEYCODE_DPAD_CENTER,
        KeyEvent.KEYCODE_AT,
        KeyEvent.KEYCODE_ALT_LEFT,
        KeyEvent.KEYCODE_ALT_RIGHT,
        KeyEvent.KEYCODE_VOLUME_UP,
        KeyEvent.KEYCODE_VOLUME_DOWN,
        KeyEvent.KEYCODE_CAMERA,
        KEYCODE_NONE
    };

    public static final int FN_KEY_ID_NONE = 7;
    public static final int[] FN_KEY_SCHEMES = {
        KeyEvent.KEYCODE_DPAD_CENTER,
        KeyEvent.KEYCODE_AT,
        KeyEvent.KEYCODE_ALT_LEFT,
        KeyEvent.KEYCODE_ALT_RIGHT,
        KeyEvent.KEYCODE_VOLUME_UP,
        KeyEvent.KEYCODE_VOLUME_DOWN,
        KeyEvent.KEYCODE_CAMERA,
        KEYCODE_NONE
    };

    public TermSettings(SharedPreferences prefs) {
        readPrefs(prefs);
    }

    public void readPrefs(SharedPreferences prefs) {
        mPrefs = prefs;
        mStatusBar = readIntPref(STATUSBAR_KEY, mStatusBar, 1);
        // mCursorStyle = readIntPref(CURSORSTYLE_KEY, mCursorStyle, 2);
        // mCursorBlink = readIntPref(CURSORBLINK_KEY, mCursorBlink, 1);
        mFontSize = readIntPref(FONTSIZE_KEY, mFontSize, 20);
        mColorId = readIntPref(COLOR_KEY, mColorId, COLOR_SCHEMES.length - 1);
        mControlKeyId = readIntPref(CONTROLKEY_KEY, mControlKeyId,
                CONTROL_KEY_SCHEMES.length - 1);
        mFnKeyId = readIntPref(FNKEY_KEY, mFnKeyId,
                FN_KEY_SCHEMES.length - 1);
        mUseCookedIME = readIntPref(IME_KEY, mUseCookedIME, 1);
        mShell = readStringPref(SHELL_KEY, mShell);
        mInitialCommand = readStringPref(INITIALCOMMAND_KEY, mInitialCommand);
        mPrefs = null;  // we leak a Context if we hold on to this
    }

    private int readIntPref(String key, int defaultValue, int maxValue) {
        int val;
        try {
            val = Integer.parseInt(
                mPrefs.getString(key, Integer.toString(defaultValue)));
        } catch (NumberFormatException e) {
            val = defaultValue;
        }
        val = Math.max(0, Math.min(val, maxValue));
        return val;
    }

    private String readStringPref(String key, String defaultValue) {
        return mPrefs.getString(key, defaultValue);
    }

    public boolean showStatusBar() {
        return (mStatusBar != 0);
    }

    public int getCursorStyle() {
        return mCursorStyle;
    }

    public int getCursorBlink() {
        return mCursorBlink;
    }

    public int getFontSize() {
        return mFontSize;
    }

    public int[] getColorScheme() {
        return COLOR_SCHEMES[mColorId];
    }

    public int getControlKeyId() {
        return mControlKeyId;
    }

    public int getFnKeyId() {
        return mFnKeyId;
    }

    public int getControlKeyCode() {
        return CONTROL_KEY_SCHEMES[mControlKeyId];
    }

    public int getFnKeyCode() {
        return FN_KEY_SCHEMES[mFnKeyId];
    }

    public boolean useCookedIME() {
        return (mUseCookedIME != 0);
    }

    public String getShell() {
        return mShell;
    }

    public String getInitialCommand() {
        return mInitialCommand;
    }
}