CODEWITHSUNDEEP
eclipsegradleswt
Martin Frank
Martin Frank

Reputation: 309

Import SWT the Gradle way in Eclipse

What is the correct way for importing SWT the Gradle way in a Eclipse Java project?

The following solution on Stackoverflow does not work (it imports a tiny SWT library containing no classes, I can't make use of any SWT functionality):

Import SWT as a Gradle dependency

My application needs to use SWT UI classes and widgets (eg. Display, Shell, Composites and so on) and must absolutely be cross-platform.

Note that my application also uses LWJGL, which I can import successfully using the page below which does provide the full Gradle code to use (click build under Release then select Gradle):

LWJGL build.gradle import code

Thanks for your help.

Upvotes: 4

Views: 1299

Answers (4)

WesternGun
WesternGun

Reputation: 12728

To complete the answer of @Ned Twigg, the full build.gradle file should be like:

plugins {
    id 'java'
    id "com.diffplug.gradle.eclipse.mavencentral" version "3.17.3"
}
...
apply plugin: 'com.diffplug.gradle.eclipse.mavencentral'
eclipseMavenCentral {
    release '4.7.0', {
        compile 'org.eclipse.swt' // SWT for Windows in Gradle
        useNativesForRunningPlatform()
    }
}

Upvotes: 1

Ned Twigg
Ned Twigg

Reputation: 2224

Starting with Eclipse 4.6.2, SWT (and all of Eclipse) is published to maven central. If you're using Gradle, the goomph plugin has a mavencentral plugin that makes it pretty easy:

apply plugin: 'com.diffplug.gradle.eclipse.mavencentral'
eclipseMavenCentral {
  release '4.7.0', {
    compile 'org.eclipse.swt'
    useNativesForRunningPlatform()
  }
}

Upvotes: 1

lance-java
lance-java

Reputation: 27984

** Disclaimer ** I've never used SWT before

I'd put the SWT jars in a maven-like directory structure (note I've chosen random group/artifact/version here... please adjust appropriately)

myRepo/com/eclipse/swt/swt-core/4.1/swt-core-4.1-windows.jar
myRepo/com/eclipse/swt/swt-core/4.1/swt-core-4.1-linux.jar
myRepo/com/eclipse/swt/swt-utils/4.1/swt-utils-4.1-windows.jar
myRepo/com/eclipse/swt/swt-utils/4.1/swt-utils-4.1-linux.jar

You could do something like this in build.gradle

org.gradle.nativeplatform.platform.OperatingSystem os = org.gradle.internal.os.OperatingSystem.current()
def osDeps = []
if (os.windows) {
    osDeps = ['com.eclipse.swt:swt-core:4.1:windows', 'com.eclipse.swt:swt-utils:4.1:windows']
} else if (os.linux) {
    osDeps = ['com.eclipse.swt:swt-core:4.1:linux', 'com.eclipse.swt:swt-utils:4.1:linux']
} else ... {
}

apply plugin: 'java'
repositories {
    maven {
        url file('myRepo')
    }
}
dependencies {
   compile 'com.foo:common-stuff:1.0'
   compile osDeps 
}

Or if the SWT jars are available in a maven repository you should use that instead of a local folder.

Upvotes: 0

lance-java
lance-java

Reputation: 27984

I'm not entirely sure the differences between an eclipse plugin and an SWT application but you might be able to use the buildship build as a reference. The buildSrc utilities may be of use.

Upvotes: 0

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