2. Graphical User Interfaces

This tutorial shows you how to create graphical user interfaces (GUI) with Qt, QGIS and the EnMAP-Box. It covers the following aspects:

1. Basics of GUI programming.

   Here you learn the very fundamentals of how to create your own GUI applications with Qt and QGIS. It addresses users that never created a GUI programmatically before.

2. EnMAP-Box and EnMAP-Box Applications. Here you learn how to bring your widget application into the EnMAP-Box and to interact with an active EnMAP-Box GUI, e.g. to receive spectral profiles selected from a map.

3. Advanced GUI programming.

   Here you find more examples, templates and recommendation to solve specific GUI-related aspects.

Prerequisites

Ensure that you have installed the EnMAP-Box repository and setup your PyCharm environment as described our installation guide for developers.

Tutorial Sections

• Setup your programming project
• Part I: Basics
  • 1. Hello World
  • 2. Hello Real World
  • 3. Create new widgets
    • Create the main widget
    • Add child widgets
  • 4. Signals and Slots
    • Connect Signals
    • Create Signals
    • Overload Signals
  • 5. Context Menus
  • 6. Qt Designer
    • Draw a Frontend
    • Build a complex UI
    • Write the backend
    • QGIS and EnMAP-Box Icons
    • Promote widgets
    • React on User Input
• Part II: EnMAP-Box GUI
  • 1. Your GUI in the EnMAP-Box
  • 2. GUI - EnMAP-Box interaction
• Part III: Advanced GUI programming
  • 1. Classification Schemes
  • 2. Spectral Libraries
  • 3. Create a Tree Model
  • 4. Discover Qt Resource Icons