1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 package com.badlogic.gdx.tests; 18 19 import com.badlogic.gdx.Gdx; 20 import com.badlogic.gdx.graphics.Color; 21 import com.badlogic.gdx.graphics.GL20; 22 import com.badlogic.gdx.graphics.g2d.BitmapFont; 23 import com.badlogic.gdx.graphics.g2d.GlyphLayout; 24 import com.badlogic.gdx.graphics.g2d.SpriteBatch; 25 import com.badlogic.gdx.graphics.g2d.TextureAtlas; 26 import com.badlogic.gdx.graphics.glutils.ShapeRenderer; 27 import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType; 28 import com.badlogic.gdx.tests.utils.GdxTest; 29 30 public class BitmapFontMetricsTest extends GdxTest { 31 private SpriteBatch spriteBatch; 32 private TextureAtlas atlas; 33 private BitmapFont font, smallFont; 34 private ShapeRenderer renderer; 35 36 @Override create()37 public void create () { 38 spriteBatch = new SpriteBatch(); 39 atlas = new TextureAtlas("data/pack"); 40 smallFont = new BitmapFont(); 41 font = new BitmapFont(Gdx.files.internal("data/verdana39.fnt"), atlas.findRegion("verdana39"), false); 42 font = new BitmapFont(Gdx.files.internal("data/arial-32-pad.fnt"), false); 43 renderer = new ShapeRenderer(); 44 renderer.setProjectionMatrix(spriteBatch.getProjectionMatrix()); 45 } 46 47 @Override render()48 public void render () { 49 // red.a = (red.a + Gdx.graphics.getDeltaTime() * 0.1f) % 1; 50 51 int viewHeight = Gdx.graphics.getHeight(); 52 53 Gdx.gl.glClearColor(1, 1, 1, 1); 54 Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); 55 spriteBatch.begin(); 56 57 // String text = "Sphinx of black quartz, judge my vow."; 58 String text = "Sphinx of black quartz."; 59 font.setColor(Color.RED); 60 61 float x = 100, y = 100; 62 float alignmentWidth; 63 64 smallFont.setColor(Color.BLACK); 65 smallFont.draw(spriteBatch, "draw position", 20, viewHeight - 0); 66 smallFont.setColor(Color.BLUE); 67 smallFont.draw(spriteBatch, "bounds", 20, viewHeight - 20); 68 smallFont.setColor(Color.MAGENTA); 69 smallFont.draw(spriteBatch, "baseline", 20, viewHeight - 40); 70 smallFont.setColor(Color.GREEN); 71 smallFont.draw(spriteBatch, "x height", 20, viewHeight - 60); 72 smallFont.setColor(Color.CYAN); 73 smallFont.draw(spriteBatch, "ascent", 20, viewHeight - 80); 74 smallFont.setColor(Color.RED); 75 smallFont.draw(spriteBatch, "descent", 20, viewHeight - 100); 76 smallFont.setColor(Color.ORANGE); 77 smallFont.draw(spriteBatch, "line height", 20, viewHeight - 120); 78 smallFont.setColor(Color.LIGHT_GRAY); 79 smallFont.draw(spriteBatch, "cap height", 20, viewHeight - 140); 80 81 font.setColor(Color.BLACK); 82 GlyphLayout layout = font.draw(spriteBatch, text, x, y); 83 84 spriteBatch.end(); 85 86 renderer.begin(ShapeType.Filled); 87 renderer.setColor(Color.BLACK); 88 renderer.rect(x - 3, y - 3, 6, 6); 89 renderer.end(); 90 91 float baseline = y - font.getCapHeight(); 92 renderer.begin(ShapeType.Line); 93 renderer.setColor(Color.LIGHT_GRAY); 94 renderer.line(0, y, 9999, y); 95 renderer.setColor(Color.MAGENTA); 96 renderer.line(0, baseline, 9999, baseline); 97 renderer.setColor(Color.GREEN); 98 renderer.line(0, baseline + font.getXHeight(), 9999, baseline + font.getXHeight()); 99 renderer.setColor(Color.CYAN); 100 renderer.line(0, y + font.getAscent(), 9999, y + font.getAscent()); 101 renderer.setColor(Color.RED); 102 renderer.line(0, baseline + font.getDescent(), 9999, baseline + font.getDescent()); 103 renderer.setColor(Color.ORANGE); 104 renderer.line(0, y - font.getLineHeight(), 9999, y - font.getLineHeight()); 105 renderer.end(); 106 107 renderer.begin(ShapeType.Line); 108 renderer.setColor(Color.BLUE); 109 renderer.rect(x, y, layout.width, -layout.height); 110 renderer.end(); 111 } 112 113 @Override dispose()114 public void dispose () { 115 spriteBatch.dispose(); 116 renderer.dispose(); 117 font.dispose(); 118 atlas.dispose(); 119 } 120 } 121