IntelliJ Platform SDK DevGuide

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16. Code Style Setting

Code style settings allow defining formatting options. A code style settings provider will create an instance of the settings, and also create an options page in order to edit them. In this example, we’ll create a page that uses the default language code style settings, customised by a language code style settings provider.

16.1. Define code style settings

package com.simpleplugin; import com.intellij.psi.codeStyle.*; public class SimpleCodeStyleSettings extends CustomCodeStyleSettings { public SimpleCodeStyleSettings(CodeStyleSettings settings) { super("SimpleCodeStyleSettings", settings); } }

16.2. Define code style settings provider

package com.simpleplugin; import com.intellij.application.options.*; import com.intellij.openapi.options.Configurable; import com.intellij.psi.codeStyle.*; import org.jetbrains.annotations.*; public class SimpleCodeStyleSettingsProvider extends CodeStyleSettingsProvider { @Override public CustomCodeStyleSettings createCustomSettings(CodeStyleSettings settings) { return new SimpleCodeStyleSettings(settings); } @Nullable @Override public String getConfigurableDisplayName() { return "Simple"; } @NotNull @Override public Configurable createSettingsPage(CodeStyleSettings settings, CodeStyleSettings originalSettings) { return new CodeStyleAbstractConfigurable(settings, originalSettings, "Simple") { @Override protected CodeStyleAbstractPanel createPanel(CodeStyleSettings settings) { return new SimpleCodeStyleMainPanel(getCurrentSettings(), settings); } @Nullable @Override public String getHelpTopic() { return null; } }; } private static class SimpleCodeStyleMainPanel extends TabbedLanguageCodeStylePanel { public SimpleCodeStyleMainPanel(CodeStyleSettings currentSettings, CodeStyleSettings settings) { super(SimpleLanguage.INSTANCE, currentSettings, settings); } } }

16.3. Register the code style settings provider

<codeStyleSettingsProvider implementation="com.simpleplugin.SimpleCodeStyleSettingsProvider"/>

16.4. Define language code style settings provider

package com.simpleplugin; import com.intellij.lang.Language; import com.intellij.psi.codeStyle.*; import org.jetbrains.annotations.NotNull; public class SimpleLanguageCodeStyleSettingsProvider extends LanguageCodeStyleSettingsProvider { @NotNull @Override public Language getLanguage() { return SimpleLanguage.INSTANCE; } @Override public void customizeSettings(@NotNull CodeStyleSettingsCustomizable consumer, @NotNull SettingsType settingsType) { if (settingsType == SettingsType.SPACING_SETTINGS) { consumer.showStandardOptions("SPACE_AROUND_ASSIGNMENT_OPERATORS"); consumer.renameStandardOption("SPACE_AROUND_ASSIGNMENT_OPERATORS", "Separator"); } else if (settingsType == SettingsType.BLANK_LINES_SETTINGS) { consumer.showStandardOptions("KEEP_BLANK_LINES_IN_CODE"); } } @Override public String getCodeSample(@NotNull SettingsType settingsType) { return "# You are reading the \".properties\" entry.\n" + "! The exclamation mark can also mark text as comments.\n" + "website =\n" + "\n" + "\n" + "\n" + "language = English\n" + "# The backslash below tells the application to continue reading\n" + "# the value onto the next line.\n" + "message = Welcome to \\\n" + " Wikipedia!\n" + "# Add spaces to the key\n" + "key\\ with\\ spaces = This is the value that could be looked up with the key \"key with spaces\".\n" + "# Unicode\n" + "tab : \\u0009"; } }

16.5. Register the language code style settings provider

<langCodeStyleSettingsProvider implementation="com.simpleplugin.SimpleLanguageCodeStyleSettingsProvider"/>

16.6. Run the project

Code Style Settings

Last modified: 12 October 2017