Bringing life into static user interfaces

Our user interface has been quite static until now. In this section, we will add a simple animation to our calculator. When the user selects the factorial operation, the second (unused) text field will fade out. It will fade in when another operation is selected. Let's see how QML allows us to implement that.

Fluid user interfaces

So far, we have been looking at graphical user interfaces as a set of panels embedded one into another. This is well reflected in the world of desktop utility programs composed of windows and subwindows containing mostly static content scattered throughout a large desktop area where the user can use a mouse pointer to move around windows or adjust their...