| <?xml version="1.0" encoding="UTF-8"?> |
| <cheatsheet title="Create a Hello World SWT application"> |
| <intro href="/org.eclipse.platform.doc.user/reference/ref-cheatsheets.htm"> |
| <description> |
| This cheat sheet shows you how to create a "Hello World" application |
| that uses the Standard Widget Toolkit (SWT). The application will |
| simply display an empty window to the user.<br/> |
| <br/> |
| If you need help at any step, click the (?) to the right. Let's get |
| started! |
| </description> |
| </intro> |
| <item title="Open the Java perspective" dialog="true" skip="false" href="/org.eclipse.platform.doc.user/concepts/concepts-4.htm"> |
| <description> |
| If you're not already in the Java perspective, in the main menu |
| select <b>Window</b> > <b>Open Perspective</b> > <b>Java</b> |
| or click on the "Click to Perform" link below. |
| </description> |
| <command serialization="org.eclipse.ui.perspectives.showPerspective(org.eclipse.ui.perspectives.showPerspective.perspectiveId=org.eclipse.jdt.ui.JavaPerspective)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Import the SWT project from target platform using Plug-In Development Environment" dialog="true" skip="true" href="/org.eclipse.platform.doc.user/tasks/tasks-importproject.htm"> |
| <description> |
| <b>Note:</b> This step requires <b>Plugin Developement Environment (PDE)</b> to be installed in Eclipse. If you do not have PDE installed, skip this step or install PDE to continue with this step.<br/><br/> |
| Open the Import wizard from the main menu via <b>File > Import...</b>, |
| and select <b>Plug-in Development > Plug-ins and Fragments</b>. Click <b>Next</b>.<br/><br/> |
| On the <b>Import Plug-ins and Fragments</b> page, select <br/> |
| <b>Import from: </b> The active target platform.<br/> |
| <b>Plug-ins and Fragments to import: </b> Select from all plug-ins and fragments found at specified location.<br/> |
| <b>Import As: </b> Projects with source folders.<br/> |
| Click <b>Next</b>.<br/><br/> |
| On the <b>Selection</b> page, Add <b>org.eclipse.swt.{platform}.{os}.{arch}</b> (for example: org.eclipse.swt.win32.win32.x86 for win32) to <b>Plug-ins and Fragments to Import:</b> list.<br/> |
| Click <b>Finish</b>.<br/> |
| <br/> |
| This will create the org.eclipse.swt.{platform}.{os}.{arch} project which we will need |
| to compile and run the application. |
| </description> |
| <command serialization="org.eclipse.ui.file.import(importWizardId=org.eclipse.pde.ui.PluginImportWizard)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Import the SWT project from downloaded SWT archive" dialog="true" skip="true" href="/org.eclipse.platform.doc.user/tasks/tasks-importproject.htm"> |
| <description> |
| <b>Note:</b> Skip this step if you have already created an SWT project in the previous step.<br/><br/> |
| Open page http://download.eclipse.org/eclipse/downloads/#Latest_Release in your web browser, |
| go to the latest release build, and find the <b>SWT Binary and Source</b> |
| download for your platform (e.g.: swt-4.4.2-win32-win32-x86_64.zip).<br/> |
| <br/> |
| Save the file to your disk; you do not need to extract the archive.<br/> |
| <br/> |
| Import the SWT project from the main menu via File > Import..., |
| and select <b>Existing Projects into Workspace</b>. Click <b>Next</b>. Specify the |
| <b>archive</b> file you downloaded and click <b>Finish</b>.<br/> |
| <br/> |
| This will create the org.eclipse.swt project which we will need |
| to compile and run the application. |
| </description> |
| <command serialization="org.eclipse.ui.file.import(importWizardId=org.eclipse.ui.wizards.import.ExternalProject)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Verify the SWT Project in workspace" skip="false"> |
| <description> |
| Verify that an SWT project has been created in your workspace in the format <b>org.eclipse.swt.{platform}.{os}.{arch}</b> |
| (or just <b>org.eclipse.swt</b> if you've imported the project from an archive).<br/><br/> |
| If not, make sure that you have completed either one of the above <b>Import the SWT project</b> steps.<br/><br/> |
| Click on <b>Click when complete</b> to go to the next step. |
| </description> |
| </item> |
| <item title="Create a Java project" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/concepts/concepts-3.htm"> |
| <description> |
| Now we need a project to store our own source code. In the main |
| toolbar, click on the <b>New Java Project</b> button, or click on |
| the link below. Enter <b>HelloWorldSWT</b> for the project name, |
| then click <b>Finish</b>. |
| </description> |
| <command serialization="org.eclipse.ui.newWizard(newWizardId=org.eclipse.jdt.ui.wizards.JavaProjectWizard)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Configure the Java project" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/reference/ref-123.htm"> |
| <description> |
| Since our project requires SWT, we need to specify this in the |
| project properties. Right-click on the project and select |
| <b>Properties</b>.<br/> |
| <br/> |
| In the <b>Java Build Path</b> page open the <b>Projects</b> tab, |
| add the org.eclipse.swt.{platform}.{os}.{arch} project, then click <b>OK</b>. |
| </description> |
| </item> |
| <item title="Create a class" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/gettingStarted/qs-9.htm"> |
| <description> |
| The next step is to create a new class. In the main toolbar, |
| click on the <b>New Java Class</b> button (or the link below). |
| If not already specified, select <b>HelloWorldSWT/src</b> as the source folder. Enter <b>HelloWorldSWT</b> for the class name and select the checkbox to |
| create the <b>main()</b> method, then click <b>Finish</b>.<br/> |
| <br/> |
| The Java editor will automatically open showing your new class. |
| </description> |
| <command serialization="org.eclipse.ui.newWizard(newWizardId=org.eclipse.jdt.ui.wizards.NewClassCreationWizard)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Write the Java code" dialog="true" skip="false" href="/org.eclipse.platform.doc.isv/guide/swt_widgets.htm"> |
| <description> |
| In the Java editor, enter the following Java code in the |
| <b>main()</b> method:<br/> |
| <br/> |
| Display display = new Display();<br/> |
| Shell shell = new Shell(display);<br/> |
| shell.setText("Hello world!");<br/> |
| shell.open();<br/> |
| while (!shell.isDisposed()) {<br/> |
| if (!display.readAndDispatch()) display.sleep();<br/> |
| }<br/> |
| display.dispose();<br/> |
| <br/> |
| You will get <b>compile errors</b>. Right click in the Java editor |
| and select Source > Organize Imports, then <b>save</b> your |
| changes. |
| </description> |
| </item> |
| <item title="Run your Java application" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/gettingStarted/qs-12.htm"> |
| <description> |
| To <b>run</b> your application, right-click on your class in the |
| Package Explorer and select <b>Run As</b> > <b>Java |
| Application</b>. A new empty window should appear with the |
| title "Hello world!".<br/> |
| <br/> |
| Congratulations! You have successfully created a Hello World SWT |
| application! |
| </description> |
| </item> |
| </cheatsheet> |
