Choosing a Layout Manager, QTextEdit and QDialogBox

Learn about how we choose a layout manager.


Widget placement in our windows is controlled by layout management. This may involve various elements, such as widget placement and size, resize handling, and widget addition or removal. Consideration of layout management is equally crucial for the user of your application. You may find several programs that are jam-packed with widgets without any apparent purpose if you conduct a simple picture search for "worst GUI design" on the internet.

A "layout manager" class contains methods for organizing widgets inside windows. They let widgets use the space in a window more effectively by enabling communication between child and parent widgets.

Here are four different layout techniques that we will look at for layout management in PyQt:

  1. move() for absolute positioning.

  2. QBoxLayout helps make straightforward GUIs, vertical or horizontal arrangements.

  3. QFormLayout is a quick layout that helps create application documents.

  4. QGridLayout gives the user more flexibility when arranging widgets by indicating the coordinate values for x and y.

Here are a few widgets and classes that are useful for layout management:

  • QTextEdit: A text entry area with additional space is created by QTextEdit, similar to QLineEdit.

  • QFileDialog: A native PyQt file dialogue that enables users to open and save files.

  • QButtonGroup: Can be used to arrange checkbox and push button widgets.

  • QSpinBox: Displays integer values in a text box that the user can cycle through QComboBox and presents a menu of choices in a drop-down-style widget.

It's not very difficult to change the layout manager we want to utilize in our applications or to set one. Make sure to import the layout manager you intend to operate with the modules when you first launch your program. Here's how to do it:

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