Anyone that’s ever used treeview, might understand my frustration.<\/p>\n
I really don’t understand the reasoning behind forcing people to use cellrenders.<\/p>\n
<\/p>\n
There are so many other ways to handle this, if I had the knowledge, this is how I’d do it.<\/p>\n
Cells would be widgets, def set_value(self,text): You’d create subclasses, and use them, but noooooo we’re stuck using cellrenders that have no easy way to add a widget to.\u00c2\u00a0 You’re stuck looking up gtk.style to “draw” things.<\/p>\n I don’t know but it just seems like a lot of extra steps that aren’t needed to render cells, there’s a lot of reasearch that goes into using a treeview, when subclasses could have been used.<\/p>\n Your main treeview would still use a liststore, but when it was time to update all it’d have to do is call obj.set_value(foo) while it was looping.\u00c2\u00a0 I really have no clue how all this stuff works, I just know how I’d do it if I were setting up the language.<\/p>\n With gtk you use pack_start() pack_end() and add() to add widgets to various other widgets like a vbox, hbox, notebooks etc.<\/p>\n pack_start is used for treeviews, but it has to be a subclass of a cellrenderer, and thus makes it extreamealy difficult to add things.\u00c2\u00a0 There are a few cellrenders for a comobox, entry, images, etc.\u00c2\u00a0 However what happens when you want to implement a custom widget … it’s damm near impossible without a month to a week of reasearch.<\/p>\n The reason being if you wanted to set up a complicated widget you could ….<\/p>\n def set_value(self,value): def scroll(self,*args): treeviewCol.pack_start(myComplexWidget)<\/p>\n Maybe it’s just me … maybe I’m an idiot, maybe the cellrenderer is exactly this, the problem is I’ve seen nill for simply adding a pre-existing widget on the web.\u00c2\u00a0 You have to draw *everything*<\/p>\n Enough of complaining, maybe someone out there will know what I’m talking about, and an easy way to set it up, or you’ll totally agree with what I’m saying.<\/p>\n","protected":false},"excerpt":{"rendered":" Anyone that’s ever used treeview, might understand my frustration. I really don’t understand the reasoning behind forcing people to use cellrenders.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81,83,79],"tags":[117,118,116],"class_list":["post-323","post","type-post","status-publish","format-standard","hentry","category-gtk","category-pygtk","category-python","tag-gtk","tag-pygtk","tag-python"],"_links":{"self":[{"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/posts\/323","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=323"}],"version-history":[{"count":1,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions"}],"predecessor-version":[{"id":325,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions\/325"}],"wp:attachment":[{"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.the-erm.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n
\nclass myWidget(gtk.Label):
\ndef __init__(self,text=None):
\ngtk.Label.__init__(self,text)<\/p>\n
\nself.set_text(text)<\/code><\/p>\n
\nclass MyComplexWidget(gtk.EventBox):
\ndef __init__(self):
\ngtk.EventBox.__init__(self)
\nvbox = gtk.VBox()
\nself.value = 0
\nself.pack_start(vbox)
\nself.label = gtk.Label(str(self.value))
\nself.connect('scroll-event',self.scroll)<\/p>\n
\nself.value = value<\/p>\n
\nself.value = self.value + 1
\nself.label = gtk.Label(str(self.value))
\nself.emit('scroll-event',*args)<\/code><\/p>\n