Java tutorial
/* * ConsoleInterruptProfilerButton.java * * Copyright (C) 2009-16 by RStudio, Inc. * * Unless you have received this program directly from RStudio pursuant * to the terms of a commercial license agreement with RStudio, then * this program is licensed to you under the terms of version 3 of the * GNU Affero General Public License. This program is distributed WITHOUT * ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT, * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the * AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details. * */ package org.rstudio.studio.client.workbench.views.console; import org.rstudio.core.client.layout.DelayFadeInHelper; import org.rstudio.core.client.resources.ImageResource2x; import org.rstudio.core.client.theme.res.ThemeResources; import org.rstudio.studio.client.application.events.EventBus; import org.rstudio.studio.client.common.filetypes.FileIconResources; import org.rstudio.studio.client.workbench.commands.Commands; import org.rstudio.studio.client.workbench.views.source.editors.profiler.RprofEvent; import com.google.gwt.dom.client.Style.Position; import com.google.gwt.dom.client.Style.Unit; import com.google.gwt.resources.client.ImageResource; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.SimplePanel; import com.google.inject.Inject; public class ConsoleInterruptProfilerButton extends Composite { public static Image CreateProfilerButton() { ImageResource icon = new ImageResource2x(FileIconResources.INSTANCE.iconProfiler2x()); Image button = new Image(icon); button.addStyleName(ThemeResources.INSTANCE.themeStyles().toolbarButtonLeftImage()); button.getElement().getStyle().setMarginRight(4, Unit.PX); button.setTitle("Profiling Code"); return button; } @Inject public ConsoleInterruptProfilerButton(final EventBus events, Commands commands) { fadeInHelper_ = new DelayFadeInHelper(this); // The SimplePanel wrapper is necessary for the toolbar button's "pushed" // effect to work. SimplePanel panel = new SimplePanel(); panel.getElement().getStyle().setPosition(Position.RELATIVE); ImageResource icon = new ImageResource2x(FileIconResources.INSTANCE.iconProfiler2x()); Image button = CreateProfilerButton(); width_ = icon.getWidth() + 6; height_ = icon.getHeight(); panel.setWidget(button); initWidget(panel); setVisible(false); events.addHandler(RprofEvent.TYPE, new RprofEvent.Handler() { @Override public void onRprofEvent(RprofEvent event) { switch (event.getEventType()) { case START: fadeInHelper_.beginShow(); break; case STOP: fadeInHelper_.hide(); break; default: break; } } }); } public int getWidth() { return width_; } public int getHeight() { return height_; } private final DelayFadeInHelper fadeInHelper_; private final int width_; private final int height_; }