Hands-On GUI Application Development in Go

Main email window

We start with a simple layout function called drawLayout(). This will set up the basic application layout similar to the GoMail design we created in Chapter 4, Walk - Building Graphical Windows Applications. The beginning of the code sets out space for the menu and toolbar that will expand to stretch the width of our window. We then start a template layout using NkLayoutRowTemplateBegin() to have a fixed size column on the left for our email list and a wider, variable width column on the right that will expand as our window resizes:

func drawLayout(win *glfw.Window, ctx *nk.Context, height int) {   toolbarHeight := float32(36)   nk.NkLayoutRowDynamic(ctx, toolbarHeight, 1)   nk.NkLabel(ctx, "Toolbar", nk.TextAlignLeft) nk.NkLayoutRowTemplateBegin(ctx ...