feat: add different coloured icons for Java filetypes

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 ### Added
 
+- Different colors for Java filetypes (e.g. `Class`: Red, `Interface`: Green, `Record`: Mauve, `Enum`:
+  Yellow and `Annotation`: Green) ([#35](https://github.com/catppuccin/jetbrains-icons/pull/35))
+- Ability to disable different colors for Java filetypes in settings panel. ([#35](https://github.com/catppuccin/jetbrains-icons/pull/35))
+
 ### Changed
 
 ### Deprecated

gradle.properties

@@ -5,7 +5,7 @@ pluginSinceBuild=231
 pluginUntilBuild=241.*
 platformType=IC
 platformVersion=2023.1
-platformPlugins=
+platformPlugins=org.jetbrains.kotlin
 javaVersion=17
 gradleVersion=7.3.3
 kotlin.stdlib.default.dependency=false

src/main/kotlin/com/github/catppuccin/jetbrains_icons/decorators/JavaProjectViewNodeDecorator.kt

@@ -0,0 +1,34 @@
+package com.github.catppuccin.jetbrains_icons.decorators
+
+import com.github.catppuccin.jetbrains_icons.IconPack
+import com.github.catppuccin.jetbrains_icons.settings.PluginSettingsState
+import com.github.catppuccin.jetbrains_icons.util.PsiClassUtils
+import com.intellij.ide.projectView.PresentationData
+import com.intellij.ide.projectView.ProjectViewNode
+import com.intellij.ide.projectView.ProjectViewNodeDecorator
+import com.intellij.lang.jvm.JvmModifier
+import com.intellij.psi.PsiClass
+import org.jetbrains.kotlin.idea.codeInsight.SuperDeclaration
+import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.psi.psiUtil.isAbstract
+import org.jetbrains.kotlin.psi.psiUtil.isObjectLiteral
+
+class JavaProjectViewNodeDecorator : ProjectViewNodeDecorator {
+    override fun decorate(node: ProjectViewNode<*>, data: PresentationData) {
+        if (!PluginSettingsState.instance.javaSupport) return
+        if (node.virtualFile?.isDirectory == true) return
+
+        val icons = IconPack.instance.icons
+
+        when (val value = node.value) {
+
+            is PsiClass -> when {
+                value.isInterface -> data.setIcon(icons.java_alt_1)
+                value.isAnnotationType -> data.setIcon(icons.java_alt_1)
+                value.isEnum -> data.setIcon(icons.java_alt_3)
+                value.isRecord -> data.setIcon(icons.java_alt_2)
+                PsiClassUtils.isAbstract(value) -> data.setIcon(icons.java_alt_1)
+            }
+        }
+    }
+}

src/main/kotlin/com/github/catppuccin/jetbrains_icons/settings/PluginSettings.kt

@@ -26,13 +26,15 @@ class PluginSettings : Configurable {
     override fun isModified(): Boolean {
         val state = PluginSettingsState.instance
         return packChanged() ||
-            component.additionalSupport.python.isSelected != state.pythonSupport
+            component.additionalSupport.python.isSelected != state.pythonSupport ||
+            component.additionalSupport.java.isSelected != state.javaSupport
     }
 
     override fun apply() {
         val state = PluginSettingsState.instance
 
         state.pythonSupport = component.additionalSupport.python.isSelected
+        state.javaSupport = component.additionalSupport.java.isSelected
 
         if (packChanged()) {
             state.variant = component.iconPack.variant

src/main/kotlin/com/github/catppuccin/jetbrains_icons/settings/PluginSettingsState.kt

@@ -14,6 +14,7 @@ class PluginSettingsState : PersistentStateComponent<PluginSettingsState> {
     var variant = Variant.MOCHA.id
 
     var pythonSupport = true
+    var javaSupport = true
 
     companion object {
         val instance: PluginSettingsState

src/main/kotlin/com/github/catppuccin/jetbrains_icons/settings/views/SettingsAdditionalSupportView.kt

@@ -8,11 +8,14 @@ import javax.swing.JPanel
 
 class SettingsAdditionalSupportView : JPanel() {
     val python = JBCheckBox("Python", PluginSettingsState.instance.pythonSupport)
+    val java = JBCheckBox("Java Filetypes", PluginSettingsState.instance.javaSupport)
 
     init {
         val form = FormBuilder.createFormBuilder()
             .addComponent(python)
             .addTooltip("Override the Python plugin icons")
+            .addComponent(java)
+            .addTooltip("Use different colors for Java filetypes (e.g. Class, Interface, Record, etc.)")
             .panel
 
         add(form)

src/main/kotlin/com/github/catppuccin/jetbrains_icons/util/PsiClassUtils.kt

@@ -0,0 +1,10 @@
+package com.github.catppuccin.jetbrains_icons.util
+
+import com.intellij.psi.PsiClass
+import com.intellij.psi.PsiModifier
+
+object PsiClassUtils {
+    fun isAbstract(psiClass: PsiClass): Boolean {
+        return psiClass.hasModifierProperty(PsiModifier.ABSTRACT)
+    }
+}

src/main/resources/META-INF/plugin.xml

@@ -31,6 +31,7 @@ For further help, see also:
 <p>LICENSE: <a href="https://github.com/catppuccin/jetbrains-icons/blob/main/LICENSE">MIT</a></p>
 ]]></description>
   <depends>com.intellij.modules.platform</depends>
+  <depends>org.jetbrains.kotlin</depends>
   <extensions defaultExtensionNs="com.intellij">
     <iconProvider
       implementation="com.github.catppuccin.jetbrains_icons.IconProvider"
@@ -41,6 +42,10 @@ For further help, see also:
       implementation="com.github.catppuccin.jetbrains_icons.decorators.PythonProjectViewNodeDecorator"
       id="PythonProjectViewNodeDecorator"
     />
+    <projectViewNodeDecorator
+      implementation="com.github.catppuccin.jetbrains_icons.decorators.JavaProjectViewNodeDecorator"
+      id="JavaProjectViewNodeDecorator"
+    />
     <applicationConfigurable
       parentId="appearance"
       groupId="com.github.catppuccin.jetbrains_icons"