hku.fyp14017.blencode.stage.Passepartout.java Source code

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Here is the source code for hku.fyp14017.blencode.stage.Passepartout.java

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/*
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2014 The Catrobat Team
 * (<http://developer.fyp14017.hku/credits>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * An additional term exception under section 7 of the GNU Affero
 * General Public License, version 3, is available at
 * http://developer.fyp14017.hku/license_additional_term
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.hku/licenses/>.
 */
package hku.fyp14017.blencode.stage;

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.scenes.scene2d.Actor;

public class Passepartout extends Actor {

    private float virtualScreenWidth;
    private float virtualScreenHeight;

    private float passepartoutHeight;
    private float passepartoutWidth;

    private Texture texture;

    Passepartout(int screenWidth, int screenHeight, int screenViewPortWidth, int screenViewPortHeight,
            float virtualScreenWidth, float virtualScreenHeight) {

        this.virtualScreenWidth = virtualScreenWidth;
        this.virtualScreenHeight = virtualScreenHeight;

        passepartoutHeight = ((screenHeight / (screenViewPortHeight / virtualScreenHeight)) - virtualScreenHeight)
                / 2f;
        passepartoutWidth = ((screenWidth / (screenViewPortWidth / virtualScreenWidth)) - virtualScreenWidth) / 2f;

        Pixmap pixmap = new Pixmap(1, 1, Pixmap.Format.RGBA8888);
        pixmap.setColor(Color.BLACK);
        pixmap.fill();
        texture = new Texture(pixmap);
    }

    @Override
    public void draw(SpriteBatch batch, float parentAlpha) {
        if (Float.compare(passepartoutWidth, 0f) != 0) {
            batch.draw(texture, -virtualScreenWidth / 2f, -virtualScreenHeight / 2f, -passepartoutWidth,
                    virtualScreenHeight);
            batch.draw(texture, virtualScreenWidth / 2f, virtualScreenHeight / 2f, passepartoutWidth,
                    -virtualScreenHeight);
        }
        if (Float.compare(passepartoutHeight, 0f) != 0) {
            batch.draw(texture, -virtualScreenWidth / 2f, -virtualScreenHeight / 2f, virtualScreenWidth,
                    -passepartoutHeight);
            batch.draw(texture, virtualScreenWidth / 2f, virtualScreenHeight / 2f, -virtualScreenWidth,
                    passepartoutHeight);
        }
        batch.flush();
    }

    @Override
    public Actor hit(float x, float y, boolean touchable) {
        if (x < -virtualScreenWidth / 2 || x > virtualScreenWidth / 2 || y < -virtualScreenHeight / 2
                || y > virtualScreenHeight / 2) {
            return this;
        }
        return null;
    }
}