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42 lines
1.9 KiB
Markdown
42 lines
1.9 KiB
Markdown
---
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title: Editor Components
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---
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## EditorTextField
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Compared to
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[Swing JTextArea](http://docs.oracle.com/javase/8/docs/api/javax/swing/JTextArea.html),
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*IntelliJ IDEA's* editor component has a ton of advantages: syntax highlighting support, code completion, code folding and much more.
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*IntelliJ IDEA's* editors are normally displayed in editor tabs, but they can be embedded in dialogs or toolwindows, too.
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This is enabled by the
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[EditorTextField](https://github.com/JetBrains/intellij-community/blob/master/platform/platform-impl/src/com/intellij/ui/EditorTextField.java)
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component.
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When creating an
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[EditorTextField](https://github.com/JetBrains/intellij-community/blob/master/platform/platform-impl/src/com/intellij/ui/EditorTextField.java),
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you can specify the following attributes:
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* The file type according to which the text in the text field is parsed;
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* Whether the text field is read-only or editable;
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* Whether the text field is single-line or multiline.
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A common use case for
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[EditorTextField](https://github.com/JetBrains/intellij-community/blob/master/platform/platform-impl/src/com/intellij/ui/EditorTextField.java)
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is entering the name of a Java class or package.
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This can be accomplished with the following steps:
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* Use
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[JavaCodeFragmentFactory.getInstance().createReferenceCodeFragment()](https://github.com/JetBrains/intellij-community/blob/master/java/java-psi-api/src/com/intellij/psi/JavaCodeFragmentFactory.java)
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to create a code fragment representing the class or package name;
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* Call
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[PsiDocumentManager.getInstance().getDocument()](https://github.com/JetBrains/intellij-community/blob/master/platform/core-api/src/com/intellij/psi/PsiDocumentManager.java)
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to get the document corresponding to the code fragment;
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* Pass the returned document to the
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[EditorTextField](https://github.com/JetBrains/intellij-community/blob/master/platform/platform-impl/src/com/intellij/ui/EditorTextField.java)
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constructor or its `setDocument()` method.
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