![]() To quickly compare active editor with Clipboard, use View → Compare with Clipboard. If you selected a single file, the IDE will prompt you to select the one to compare to. To invoke it, select any pair of them and press Ctrl+ D ( Cmd+ D for OS X). IntelliJ IDEA has a built-in Diff viewer for code, jar files, revisions and even images. If your IntelliJ IDEA is set to open each project in a separate window, you can quickly switch between them with Ctrl+ Alt+ ` ( Ctrl+ ` for OS X). For example, here we’re accessing the editor settings: If you’re using this feature a lot, it’s worth knowing that you can access IntelliJ IDEA settings by just pressing Enter right in its popup. With Search Everywhere you can find arbitrary text fragments literally everywhere: in the code, libraries, parts of the UI, settings, or even action names. Disabling that is a little bit more difficult: you need to manually edit your /options/editor.xml, and add the following line: One more thing that might be annoying is the intention bulb that appears in the editor every time there is an intention available at the caret. If you feel that sometimes it’s just too much, you can configure what you want to see there via Settings → Editor → General → Gutter. Gutter, the leftmost editor column, typically displays useful information related to the code you’re editing. If you work with lots of HTML and XML and would like to avoid unnecessary distraction, you may want to disable breadcrumbs and tag tree highlighting in Editor → General → Appearance. Select the checkboxes next to the description of relevant locations and check the results in the Preview pane.Disable breadcrumbs and tag tree highlighting Use this tab to specify where you want RubyMine to insert spaces automatically. Select the public, protected or private checkboxes to create an extra indentation after the corresponding access modifier. Indent methods after visibility modifiers When the checkbox is not selected and visibility modifiers aren't indented, all inner methods will be indented automatically. ![]() By default, the checkbox is selected, and visibility modifiers are indented. Use the checkbox to configure indentation for visibility modifiers. If this checkbox is selected, the blocks of code will be formatted in columns. If this checkbox is not selected, the blocks of code will be formatted against the closest ancestor block that starts on a new line. Use this checkbox to switch between the two possible indentation behaviors: If this checkbox is cleared, RubyMine will delete the tab characters and spaces. If this checkbox is selected, RubyMine will keep indents on the empty lines as if they contained some code. In this field, specify the number of spaces to be inserted between the elements of an array, in expressions, method declarations and method calls. In this field, specify the number of spaces to be inserted for each indent level. In this field, specify the number of spaces included in a tab. The Smart tabs checkbox is available if the Use tab character checkbox is selected. This means that a group of spaces that fits the specified tab size is automatically replaced with a tab, which may result in breaking fine alignment. If this checkbox is cleared, only tabs are used. ![]() ![]() If this checkbox is selected, the part of indentation defined by the nesting of code blocks, is made of the tabs and (if necessary) spaces, while the part of indentation defined by the alignment is made only of spaces. When the checkbox is cleared, RubyMine uses spaces instead of tabs. If this checkbox is selected, tab characters are used:
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