com.mangecailloux.pebble.screens.Screen.java Source code

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Here is the source code for com.mangecailloux.pebble.screens.Screen.java

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/*******************************************************************************
 * Copyright 2013 See AUTHORS file.
 * 
 * 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.mangecailloux.pebble.screens;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputMultiplexer;
import com.mangecailloux.pebble.debug.Debuggable;
import com.mangecailloux.pebble.updater.Updater;
import com.mangecailloux.pebble.updater.Updaters;

public abstract class Screen extends Debuggable {

    protected final String name;
    protected ScreenManager manager;
    protected boolean loaded;
    protected final InputMultiplexer inputMultiplexer;
    protected boolean hasBeenActivated;
    private final Updaters updaters;

    public Screen(String _name) {
        super();

        if (_name != null)
            name = _name;
        else
            name = this.getClass().getSimpleName();

        manager = null;
        updaters = new Updaters();
        loaded = false;
        hasBeenActivated = false;
        inputMultiplexer = new InputMultiplexer();
    }

    public ScreenManager getManager() {
        return manager;
    }

    protected void setManager(ScreenManager _manager) {
        if (manager != _manager) {
            manager = _manager;
            if (manager != null) {
                updaters.setManager(manager.getUpdateManager());
            } else {
                updaters.setManager(null);
            }
        }
    }

    public void addUpdater(Updater _updater) {
        updaters.addUpdater(_updater);
    }

    public Boolean isLoaded() {
        return loaded;
    }

    public InputMultiplexer getInputMultiplexer() {
        return inputMultiplexer;
    }

    public void log(String _message) {
        if (isDebug())
            Gdx.app.log("Screen : " + name, _message);
    }

    public final void load() {
        if (!loaded) {
            log("onLoad");
            onLoad();
            loaded = true;
        }
    }

    public final void unload() {
        if (loaded) {
            log("onUnload");
            onUnload();
            loaded = false;
        }
    }

    public void resize(int _width, int _height) {
        log("onResize (" + _width + ", " + _height + ")");
        onResize(_width, _height);
    }

    public final void activate(boolean _activate) {
        if (_activate) {
            log("onActivation");
            if (!hasBeenActivated) {
                onFirstActivation();
                hasBeenActivated = true;
            }
            onActivation();
        } else {
            log("onDeactivation");
            onDeactivation();
        }
    }

    public final void pause(boolean _pause) {
        if (_pause) {
            log("onPause");
            onPause();
        } else {
            log("onResume");
            onResume();
        }
    }

    public final void dispose() {
        log("onDispose");
        onDispose();
    }

    protected abstract void onDispose();

    protected abstract void onLoad();

    protected abstract void onUnload();

    protected abstract void onResize(int width, int height);

    protected abstract void onFirstActivation();

    protected abstract void onActivation();

    protected abstract void onDeactivation();

    protected abstract void onPause();

    protected abstract void onResume();
}