func rowActivated(model *gtk3.TreeStore,
treeView *gtk3.TreeView, path *gtk3.TreePath,
column *gtk3.TreeViewColumn, data ...interface{}) {
var iter gtk3.TreeIter
var call func(gtk3.WidgetLike) gtk3.WidgetLike
model.GetIter(&iter, path)
style := model.GetValue(&iter, StyleColumn).(int)
indices := path.GetIndices()
if len(indices) > 1 {
call = Demos[indices[0]].Children[indices[1]].CallBack
} else {
call = Demos[indices[0]].CallBack
}
if call != nil {
if style == pango.PangoStyle.ITALIC {
style = pango.PangoStyle.NORMAL
} else {
style = pango.PangoStyle.ITALIC
}
model.SetValue(&iter, StyleColumn, style)
window := call(treeView.GetTopLevel())
if window != nil {
window.Connect("destroy", windowClosed, model, path.Copy())
}
}
}
func windowClosed(model *gtk3.TreeStore, path *gtk3.TreePath) {
var iter gtk3.TreeIter
model.GetIter(&iter, path)
style := model.GetValue(&iter, StyleColumn).(int)
if style == pango.PangoStyle.ITALIC {
model.SetValue(&iter, StyleColumn, pango.PangoStyle.NORMAL)
}
}
func itemToggled(model *gtk3.TreeStore, column int, data ...interface{}) {
var iter gtk3.TreeIter
pathStr := data[1].(string)
path := gtk3.NewTreePathFromString(pathStr)
model.GetIter(&iter, path)
toggleItem := model.GetValue(&iter, column).(bool)
if toggleItem {
toggleItem = false
} else {
toggleItem = true
}
model.SetValue(&iter, column, toggleItem)
}