001/******************************************************************************* 002 * Copyright 2011 See AUTHORS file. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 ******************************************************************************/ 016package squidpony.squidgrid.gui.gdx; 017 018import com.badlogic.gdx.graphics.Camera; 019import com.badlogic.gdx.graphics.OrthographicCamera; 020import com.badlogic.gdx.math.Vector2; 021import com.badlogic.gdx.utils.Scaling; 022import com.badlogic.gdx.utils.viewport.ScalingViewport; 023 024/** A viewport that scales the world using {@link Scaling}. 025 * <p> 026 * {@link Scaling#fit} keeps the aspect ratio by scaling the world up to fit the screen, adding black bars (letterboxing) for the 027 * remaining space. 028 * <p> 029 * {@link Scaling#fill} keeps the aspect ratio by scaling the world up to take the whole screen (some of the world may be off 030 * screen). 031 * <p> 032 * {@link Scaling#stretch} does not keep the aspect ratio, the world is scaled to take the whole screen. 033 * <p> 034 * {@link Scaling#none} keeps the aspect ratio by using a fixed size world (the world may not fill the screen or some of the world 035 * may be off screen). 036 * @author Daniel Holderbaum 037 * @author Nathan Sweet 038 * Created by Tommy Ettinger on 4/16/2016. 039 */ 040public class ShrinkPartViewport extends ScalingViewport { 041 public float barWidth; 042 /** Creates a new viewport using a new {@link OrthographicCamera}. */ 043 public ShrinkPartViewport (float worldWidth, float worldHeight, float barWidth) { 044 this(worldWidth, worldHeight, barWidth, new OrthographicCamera()); 045 } 046 047 public ShrinkPartViewport (float worldWidth, float worldHeight, float barWidth, Camera camera) { 048 super(Scaling.stretch, worldWidth, worldHeight, camera); 049 this.barWidth = barWidth; 050 } 051 052 @Override 053 public void update (int screenWidth, int screenHeight, boolean centerCamera) { 054 Vector2 scaled = Scaling.stretch.apply(getWorldWidth(), getWorldHeight(), screenWidth - barWidth * 2, screenHeight); 055 int viewportWidth = Math.round(scaled.x); 056 int viewportHeight = Math.round(scaled.y); 057 058 // Center. 059 setScreenBounds((screenWidth - viewportWidth) / 2, (screenHeight - viewportHeight) / 2, viewportWidth, viewportHeight); 060 061 apply(true); 062 } 063 064 public Scaling getScaling () { 065 return Scaling.stretch; 066 } 067}