Java tutorial
package gaia.cu9.ari.gaiaorbit.interfce; import java.nio.IntBuffer; import java.util.ArrayList; import java.util.List; import com.badlogic.gdx.Gdx; import com.badlogic.gdx.files.FileHandle; import com.badlogic.gdx.graphics.GL20; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.graphics.g2d.Sprite; import com.badlogic.gdx.scenes.scene2d.Actor; import com.badlogic.gdx.scenes.scene2d.Event; import com.badlogic.gdx.scenes.scene2d.EventListener; import com.badlogic.gdx.scenes.scene2d.InputEvent; import com.badlogic.gdx.scenes.scene2d.InputEvent.Type; import com.badlogic.gdx.scenes.scene2d.Stage; import com.badlogic.gdx.scenes.scene2d.ui.Button; import com.badlogic.gdx.scenes.scene2d.ui.ButtonGroup; import com.badlogic.gdx.scenes.scene2d.ui.Container; import com.badlogic.gdx.scenes.scene2d.ui.HorizontalGroup; import com.badlogic.gdx.scenes.scene2d.ui.Image; import com.badlogic.gdx.scenes.scene2d.ui.Label; import com.badlogic.gdx.scenes.scene2d.ui.Label.LabelStyle; import com.badlogic.gdx.scenes.scene2d.ui.Skin; import com.badlogic.gdx.scenes.scene2d.ui.Stack; import com.badlogic.gdx.scenes.scene2d.ui.Table; import com.badlogic.gdx.scenes.scene2d.ui.TextArea; import com.badlogic.gdx.scenes.scene2d.ui.TextButton; import com.badlogic.gdx.scenes.scene2d.ui.TextField.TextFieldStyle; import com.badlogic.gdx.scenes.scene2d.ui.VerticalGroup; import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener; import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener.ChangeEvent; import com.badlogic.gdx.scenes.scene2d.utils.SpriteDrawable; import com.badlogic.gdx.utils.Align; import com.badlogic.gdx.utils.BufferUtils; import gaia.cu9.ari.gaiaorbit.event.EventManager; import gaia.cu9.ari.gaiaorbit.event.Events; import gaia.cu9.ari.gaiaorbit.util.GlobalConf; import gaia.cu9.ari.gaiaorbit.util.GlobalResources; import gaia.cu9.ari.gaiaorbit.util.I18n; import gaia.cu9.ari.gaiaorbit.util.scene2d.CollapsibleWindow; import gaia.cu9.ari.gaiaorbit.util.scene2d.Link; import gaia.cu9.ari.gaiaorbit.util.scene2d.OwnLabel; import gaia.cu9.ari.gaiaorbit.util.scene2d.OwnScrollPane; import gaia.cu9.ari.gaiaorbit.util.scene2d.OwnTextArea; import gaia.cu9.ari.gaiaorbit.util.scene2d.OwnTextButton; /** * The help window with About, Help and System sections. * * @author tsagrista * */ public class AboutWindow extends CollapsibleWindow { final private Stage stage; final private Skin skin; private AboutWindow me; private Table table; private OwnScrollPane scroll; private LabelStyle linkStyle; private List<OwnScrollPane> scrolls; private List<Actor> textareas; public AboutWindow(Stage stg, Skin sk) { super(txt("gui.help.help") + " - " + GlobalConf.APPLICATION_NAME + " v" + GlobalConf.version.version, sk); this.stage = stg; this.skin = sk; this.me = this; this.linkStyle = skin.get("link", LabelStyle.class); float tawidth = 440 * GlobalConf.SCALE_FACTOR; float taheight = 250 * GlobalConf.SCALE_FACTOR; float taheight_s = 60 * GlobalConf.SCALE_FACTOR; float tabwidth = 60 * GlobalConf.SCALE_FACTOR; float pad = 5 * GlobalConf.SCALE_FACTOR; scrolls = new ArrayList<OwnScrollPane>(5); textareas = new ArrayList<Actor>(); /** TABLE and SCROLL **/ table = new Table(skin); // Create the tab buttons HorizontalGroup group = new HorizontalGroup(); group.align(Align.left); final Button tab1 = new OwnTextButton(txt("gui.help.help"), skin, "toggle-big"); tab1.pad(pad); tab1.setWidth(tabwidth); final Button tab2 = new OwnTextButton(txt("gui.help.about"), skin, "toggle-big"); tab2.pad(pad); tab2.setWidth(tabwidth); final Button tab3 = new OwnTextButton(txt("gui.help.system"), skin, "toggle-big"); tab3.pad(pad); tab3.setWidth(tabwidth); group.addActor(tab1); group.addActor(tab2); group.addActor(tab3); table.add(group).align(Align.left).padLeft(pad); table.row(); // Create the tab content. Just using images here for simplicity. Stack content = new Stack(); /** CONTENT 1 - HELP **/ final Table content1 = new Table(skin); content1.align(Align.top); Image gaiasky = new Image(getSpriteDrawable(Gdx.files.internal("img/gaiaskylogo.png"))); // User manual Label usermantitle = new OwnLabel(txt("gui.help.usermanual"), skin, "ui-12"); Label usermantxt = new OwnLabel(txt("gui.help.help1"), skin, "ui-11"); Link usermanlink = new Link(GlobalConf.WEBPAGE, linkStyle, GlobalConf.WEBPAGE); // Wiki Label wikititle = new OwnLabel("Docs", skin, "ui-12"); Label wikitxt = new OwnLabel(txt("gui.help.help2"), skin, "ui-11"); Link wikilink = new Link(GlobalConf.DOCUMENTATION, linkStyle, GlobalConf.DOCUMENTATION); // Readme Label readmetitle = new OwnLabel(txt("gui.help.readme"), skin, "ui-12"); FileHandle readmefile = Gdx.files.internal("README.md"); if (!readmefile.exists()) { readmefile = Gdx.files.internal("../README.md"); } String readmestr = readmefile.readString(); int lines = GlobalResources.countOccurrences(readmestr, '\n'); TextArea readme = new TextArea(readmestr, skin); readme.setDisabled(true); readme.setPrefRows(lines); textareas.add(readme); OwnScrollPane readmescroll = new OwnScrollPane(readme, skin, "default-nobg"); readmescroll.setWidth(tawidth); readmescroll.setHeight(taheight); readmescroll.setForceScroll(false, true); readmescroll.setSmoothScrolling(true); readmescroll.setFadeScrollBars(false); scrolls.add(readmescroll); // Add all to content content1.add(gaiasky).colspan(2); content1.row(); content1.add(usermantitle).align(Align.left).padRight(pad * 2); content1.add(usermantxt).align(Align.left); content1.row(); content1.add(new OwnLabel("", skin, "ui-11")); content1.add(usermanlink).align(Align.left); content1.row(); content1.add(wikititle).align(Align.left).padRight(pad * 2); content1.add(wikitxt).align(Align.left); content1.row(); content1.add(new OwnLabel("", skin, "ui-11")); content1.add(wikilink).align(Align.left); content1.row(); content1.add(readmetitle).colspan(2).align(Align.left); content1.row(); content1.add(readmescroll).colspan(2).expand().pad(pad * 2, 0, pad * 2, 0).align(Align.center); /** CONTENT 2 - ABOUT **/ final Table content2 = new Table(skin); content2.align(Align.top); // Intro TextArea intro = new OwnTextArea(txt("gui.help.gscredits", GlobalConf.version.version), skin.get("msg-11", TextFieldStyle.class)); intro.setDisabled(true); intro.setPrefRows(3); intro.setWidth(tawidth); textareas.add(intro); // Home page Label homepagetitle = new OwnLabel(txt("gui.help.homepage"), skin, "ui-12"); Link homepage = new Link(GlobalConf.WEBPAGE, linkStyle, GlobalConf.WEBPAGE); // Author Label authortitle = new OwnLabel(txt("gui.help.author"), skin, "ui-12"); VerticalGroup author = new VerticalGroup(); author.align(Align.left); Label authorname = new OwnLabel("Toni Sagrist Sells", skin, "ui-11"); Link authormail = new Link("tsagrista@ari.uni-heidelberg.de", linkStyle, "mailto:tsagrista@ari.uni-heidelberg.de"); Link authorpage = new Link("www.tonisagrista.com", linkStyle, "http://tonisagrista.com"); author.addActor(authorname); author.addActor(authormail); author.addActor(authorpage); // Contributor Label contribtitle = new OwnLabel(txt("gui.help.contributors"), skin, "ui-12"); VerticalGroup contrib = new VerticalGroup(); contrib.align(Align.left); Label contribname = new OwnLabel("Apl. Prof. Dr. Stefan Jordan", skin, "ui-11"); Link contribmail = new Link("jordan@ari.uni-heidelberg.de", linkStyle, "mailto:jordan@ari.uni-heidelberg.de"); contrib.addActor(contribname); contrib.addActor(contribmail); // License HorizontalGroup licenseh = new HorizontalGroup(); licenseh.space(pad * 2); Image license = new Image(getSpriteDrawable(Gdx.files.internal("img/license.png"))); VerticalGroup licensev = new VerticalGroup(); TextArea licensetext = new OwnTextArea(txt("gui.help.license"), skin.get("msg-11", TextFieldStyle.class)); licensetext.setDisabled(true); licensetext.setPrefRows(3); licensetext.setWidth(tawidth / 2f); Link licenselink = new Link("https://www.gnu.org/licenses/gpl.html", linkStyle, "https://www.gnu.org/licenses/gpl.html"); licensev.addActor(licensetext); licensev.addActor(licenselink); licenseh.addActor(license); licenseh.addActor(licensev); // Thanks HorizontalGroup thanks = new HorizontalGroup(); thanks.space(pad * 2); Container thanksc = new Container(thanks); thanksc.setBackground(skin.getDrawable("bg-clear")); Image zah = new Image(getSpriteDrawable(Gdx.files.internal("img/zah.png"))); Image dlr = new Image(getSpriteDrawable(Gdx.files.internal("img/dlr.png"))); Image bwt = new Image(getSpriteDrawable(Gdx.files.internal("img/bwt.png"))); Image dpac = new Image(getSpriteDrawable(Gdx.files.internal("img/dpac.png"))); thanks.addActor(zah); thanks.addActor(dlr); thanks.addActor(bwt); thanks.addActor(dpac); content2.add(intro).colspan(2).align(Align.left).padTop(pad * 2); content2.row(); content2.add(homepagetitle).align(Align.topLeft).padRight(pad * 2); content2.add(homepage).align(Align.left); content2.row(); content2.add(authortitle).align(Align.topLeft).padRight(pad * 2).padTop(pad); content2.add(author).align(Align.left).padTop(pad); content2.row(); content2.add(contribtitle).align(Align.topLeft).padRight(pad * 2).padTop(pad); content2.add(contrib).align(Align.left).padTop(pad); content2.row(); content2.add(licenseh).colspan(2).align(Align.center).padTop(pad * 4); content2.row(); content2.add(thanksc).colspan(2).align(Align.center).padTop(pad * 8); /** CONTENT 3 - SYSTEM **/ final Table content3 = new Table(skin); content3.align(Align.top); // Build info Label buildinfo = new OwnLabel(txt("gui.help.buildinfo"), skin, "help-title"); Label versiontitle = new OwnLabel(txt("gui.help.version", GlobalConf.APPLICATION_NAME), skin, "ui-12"); Label version = new OwnLabel(GlobalConf.version.version, skin, "ui-11"); Label revisiontitle = new OwnLabel(txt("gui.help.buildnumber"), skin, "ui-12"); Label revision = new OwnLabel(GlobalConf.version.build, skin, "ui-11"); Label timetitle = new OwnLabel(txt("gui.help.buildtime"), skin, "ui-12"); Label time = new OwnLabel(GlobalConf.version.buildtime, skin, "ui-11"); Label systemtitle = new OwnLabel(txt("gui.help.buildsys"), skin, "ui-12"); TextArea system = new OwnTextArea(GlobalConf.version.system, skin.get("msg-11", TextFieldStyle.class)); system.setDisabled(true); system.setPrefRows(3); system.setWidth(tawidth * 2f / 3f); textareas.add(system); Label buildertitle = new OwnLabel(txt("gui.help.builder"), skin, "ui-12"); Label builder = new OwnLabel(GlobalConf.version.builder, skin, "ui-11"); // Java info Label javainfo = new OwnLabel(txt("gui.help.javainfo"), skin, "help-title"); Label javaversiontitle = new OwnLabel(txt("gui.help.javaversion"), skin, "ui-12"); Label javaversion = new OwnLabel(System.getProperty("java.version"), skin, "ui-11"); Label javaruntimetitle = new OwnLabel(txt("gui.help.javaname"), skin, "ui-12"); Label javaruntime = new OwnLabel(System.getProperty("java.runtime.name"), skin, "ui-11"); Label javavmnametitle = new OwnLabel(txt("gui.help.javavmname"), skin, "ui-12"); Label javavmname = new OwnLabel(System.getProperty("java.vm.name"), skin, "ui-11"); Label javavmversiontitle = new OwnLabel(txt("gui.help.javavmversion"), skin, "ui-12"); Label javavmversion = new OwnLabel(System.getProperty("java.vm.version"), skin, "ui-11"); Label javavmvendortitle = new OwnLabel(txt("gui.help.javavmvendor"), skin, "ui-12"); Label javavmvendor = new OwnLabel(System.getProperty("java.vm.vendor"), skin, "ui-11"); TextButton memoryinfobutton = new OwnTextButton(txt("gui.help.meminfo"), skin, "default"); memoryinfobutton.setName("memoryinfo"); memoryinfobutton.setSize(150 * GlobalConf.SCALE_FACTOR, 20 * GlobalConf.SCALE_FACTOR); memoryinfobutton.addListener(new EventListener() { @Override public boolean handle(Event event) { if (event instanceof ChangeEvent) { EventManager.instance.post(Events.DISPLAY_MEM_INFO_WINDOW, stage, skin); return true; } return false; } }); // OpenGL info Label glinfo = new OwnLabel(txt("gui.help.openglinfo"), skin, "help-title"); Label glversiontitle = new OwnLabel(txt("gui.help.openglversion"), skin, "ui-12"); Label glversion = new OwnLabel(Gdx.gl.glGetString(GL20.GL_VERSION), skin, "ui-11"); Label glslversiontitle = new OwnLabel(txt("gui.help.glslversion"), skin, "ui-12"); Label glslversion = new OwnLabel(Gdx.gl.glGetString(GL20.GL_SHADING_LANGUAGE_VERSION), skin, "ui-11"); Label glextensionstitle = new OwnLabel(txt("gui.help.glextensions"), skin, "ui-12"); String glextensionsstr = Gdx.gl.glGetString(GL20.GL_EXTENSIONS).replace(' ', '\r'); lines = GlobalResources.countOccurrences(glextensionsstr, '\r') + 1; IntBuffer buf = BufferUtils.newIntBuffer(16); Gdx.gl.glGetIntegerv(Gdx.graphics.getGL20().GL_MAX_TEXTURE_SIZE, buf); int maxSize = buf.get(0); TextArea glextensions = new TextArea("Max texture size: " + maxSize + "\r" + glextensionsstr, skin); glextensions.setDisabled(true); glextensions.setPrefRows(lines); textareas.add(glextensions); OwnScrollPane glextensionsscroll = new OwnScrollPane(glextensions, skin, "default-nobg"); glextensionsscroll.setWidth(tawidth / 1.7f); glextensionsscroll.setHeight(taheight_s); glextensionsscroll.setForceScroll(false, true); glextensionsscroll.setSmoothScrolling(true); glextensionsscroll.setFadeScrollBars(false); scrolls.add(glextensionsscroll); content3.add(buildinfo).colspan(2).align(Align.left).padTop(pad * 3); content3.row(); content3.add(versiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(version).align(Align.left); content3.row(); content3.add(revisiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(revision).align(Align.left); content3.row(); content3.add(timetitle).align(Align.topLeft).padRight(pad * 2); content3.add(time).align(Align.left); content3.row(); content3.add(buildertitle).align(Align.topLeft).padRight(pad * 2); content3.add(builder).align(Align.left).padBottom(pad * 3); content3.row(); content3.add(systemtitle).align(Align.topLeft).padRight(pad * 2); content3.add(system).align(Align.left); content3.row(); content3.add(javainfo).colspan(2).align(Align.left).padTop(pad * 2); content3.row(); content3.add(javaversiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(javaversion).align(Align.left); content3.row(); content3.add(javaruntimetitle).align(Align.topLeft).padRight(pad * 2); content3.add(javaruntime).align(Align.left); content3.row(); content3.add(javavmnametitle).align(Align.topLeft).padRight(pad * 2); content3.add(javavmname).align(Align.left); content3.row(); content3.add(javavmversiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(javavmversion).align(Align.left); content3.row(); content3.add(javavmvendortitle).align(Align.topLeft).padRight(pad * 2); content3.add(javavmvendor).align(Align.left).padBottom(pad * 2); content3.row(); content3.add(memoryinfobutton).colspan(2).align(Align.left).padBottom(pad * 3); content3.row(); content3.add(glinfo).colspan(2).align(Align.left).padTop(pad * 2); content3.row(); content3.add(glversiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(glversion).align(Align.left); content3.row(); content3.add(glslversiontitle).align(Align.topLeft).padRight(pad * 2); content3.add(glslversion).align(Align.left); content3.row(); content3.add(glextensionstitle).align(Align.topLeft).padRight(pad * 2); content3.add(glextensionsscroll).align(Align.left); /** ADD ALL CONTENT **/ content.addActor(content1); content.addActor(content2); content.addActor(content3); table.add(content).expand().fill(); // Listen to changes in the tab button checked states // Set visibility of the tab content to match the checked state ChangeListener tab_listener = new ChangeListener() { @Override public void changed(ChangeEvent event, Actor actor) { content1.setVisible(tab1.isChecked()); content2.setVisible(tab2.isChecked()); content3.setVisible(tab3.isChecked()); } }; tab1.addListener(tab_listener); tab2.addListener(tab_listener); tab3.addListener(tab_listener); // Let only one tab button be checked at a time ButtonGroup tabs = new ButtonGroup(); tabs.setMinCheckCount(1); tabs.setMaxCheckCount(1); tabs.add(tab1); tabs.add(tab2); tabs.add(tab3); /** BUTTONS **/ HorizontalGroup buttonGroup = new HorizontalGroup(); TextButton close = new OwnTextButton(txt("gui.close"), skin, "default"); close.setName("close"); close.setSize(70 * GlobalConf.SCALE_FACTOR, 20 * GlobalConf.SCALE_FACTOR); close.addListener(new EventListener() { @Override public boolean handle(Event event) { if (event instanceof ChangeEvent) { me.hide(); return true; } return false; } }); buttonGroup.addActor(close); add(table).pad(pad); row(); add(buttonGroup).pad(pad).bottom().right(); getTitleTable().align(Align.left); pack(); this.setPosition(Math.round(stage.getWidth() / 2f - this.getWidth() / 2f), Math.round(stage.getHeight() / 2f - this.getHeight() / 2f)); /** CAPTURE SCROLL FOCUS **/ stage.addListener(new EventListener() { @Override public boolean handle(Event event) { if (event instanceof InputEvent) { InputEvent ie = (InputEvent) event; if (ie.getType() == Type.mouseMoved) { for (OwnScrollPane scroll : scrolls) { if (ie.getTarget().isDescendantOf(scroll)) { stage.setScrollFocus(scroll); } } return true; } } return false; } }); } public void hide() { if (stage.getActors().contains(me, true)) me.remove(); } public void display() { if (!stage.getActors().contains(me, true)) stage.addActor(this); } protected static String txt(String key) { return I18n.bundle.get(key); } protected static String txt(String key, Object... args) { return I18n.bundle.format(key, args); } private SpriteDrawable getSpriteDrawable(FileHandle fh) { Texture tex = new Texture(fh); return new SpriteDrawable(new Sprite(tex)); } }