com.badlogic.gdx.tests.ViewportTest2.java Source code

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Here is the source code for com.badlogic.gdx.tests.ViewportTest2.java

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/*******************************************************************************
 * Copyright 2011 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.badlogic.gdx.tests;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.InputAdapter;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.tests.utils.GdxTest;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.Scaling;
import com.badlogic.gdx.utils.viewport.ExtendViewport;
import com.badlogic.gdx.utils.viewport.ScalingViewport;
import com.badlogic.gdx.utils.viewport.ScreenViewport;
import com.badlogic.gdx.utils.viewport.Viewport;

/** Cycles viewports while rendering with SpriteBatch, also shows how to draw in the black bars. */
public class ViewportTest2 extends GdxTest {
    Array<Viewport> viewports;
    Viewport viewport;
    Array<String> names;
    String name;

    private SpriteBatch batch;
    private Texture texture;
    private BitmapFont font;
    private OrthographicCamera camera;

    public void create() {
        font = new BitmapFont();
        font.setColor(0, 0, 0, 1);

        Pixmap pixmap = new Pixmap(16, 16, Format.RGBA8888);
        pixmap.setColor(1, 1, 1, 1);
        pixmap.fill();
        texture = new Texture(pixmap);

        batch = new SpriteBatch();

        camera = new OrthographicCamera();
        camera.position.set(100, 100, 0);
        camera.update();

        viewports = ViewportTest1.getViewports(camera);
        viewport = viewports.first();

        names = ViewportTest1.getViewportNames();
        name = names.first();

        Gdx.input.setInputProcessor(new InputAdapter() {
            public boolean keyDown(int keycode) {
                if (keycode == Input.Keys.SPACE) {
                    int index = (viewports.indexOf(viewport, true) + 1) % viewports.size;
                    name = names.get(index);
                    viewport = viewports.get(index);
                    resize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
                }
                return false;
            }
        });
    }

    public void render() {
        batch.setProjectionMatrix(camera.projection);
        batch.setTransformMatrix(camera.view);

        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
        batch.begin();
        // draw a white background so we are able to see the black bars
        batch.setColor(1, 1, 1, 1);
        batch.draw(texture, -4096, -4096, 4096, 4096, 8192, 8192, 1, 1, 0, 0, 0, 16, 16, false, false);

        batch.setColor(1, 0, 0, 1);
        batch.draw(texture, 150, 100, 16, 16, 32, 32, 1, 1, 45, 0, 0, 16, 16, false, false);

        font.draw(batch, viewport.getClass().getSimpleName(), 150, 100);
        batch.end();

        if (viewport instanceof ScalingViewport) {
            // This shows how to set the viewport to the whole screen and draw within the black bars.
            ScalingViewport scalingViewport = (ScalingViewport) viewport;
            int screenWidth = Gdx.graphics.getWidth();
            int screenHeight = Gdx.graphics.getHeight();
            Gdx.gl.glViewport(0, 0, screenWidth, screenHeight);
            batch.getProjectionMatrix().idt().setToOrtho2D(0, 0, screenWidth, screenHeight);
            batch.getTransformMatrix().idt();
            batch.begin();
            float leftGutterWidth = scalingViewport.getLeftGutterWidth();
            if (leftGutterWidth > 0) {
                batch.draw(texture, 0, 0, leftGutterWidth, screenHeight);
                batch.draw(texture, scalingViewport.getRightGutterX(), 0, scalingViewport.getRightGutterWidth(),
                        screenHeight);
            }
            float bottomGutterHeight = scalingViewport.getBottomGutterHeight();
            if (bottomGutterHeight > 0) {
                batch.draw(texture, 0, 0, screenWidth, bottomGutterHeight);
                batch.draw(texture, 0, scalingViewport.getTopGutterY(), screenWidth,
                        scalingViewport.getTopGutterHeight());
            }
            batch.end();
            viewport.update(screenWidth, screenHeight, true); // Restore viewport.
        }
    }

    public void resize(int width, int height) {
        System.out.println(name);
        viewport.update(width, height);
    }

    public void dispose() {
        texture.dispose();
        batch.dispose();
    }
}