On 2010-03-08, at 6:46 PM, Michael Carman wrote: > On 3/8/2010 7:28 PM, Swingle David-QWHM86 wrote: >> So, what is the difference between widgets that have "ttk__" in >> their name and those that don't? > > They're completely different widgets which use (or at least closely > approximate) the theming of OS-native widgets. The first "t" stands for > "tile" which is the extension that introduced them. As of Tk 8.5 the > tile extension is integrated into the core.
Mostly right, but a few modifications ... Ttk stands for Themed Tk, representing the themed set of Tk widgets. They actually do use the native theming APIs to draw the widgets on each platform. 'tile' is indeed the name of the original extension from which ttk is derived. See the intro at http://docs.activestate.com/activetcl/8.5/tcl/TkCmd/ttk_intro.htm >> If I want to find help on these widgets, where do I look? > > Under the "Themed Widgets" section of the Tk documentation: > > http://docs.activestate.com/activetcl/8.5/tcl/tk_contents.htm > >> Why is there a difference and what are the advantages and >> disadvantages to one over the other? > > The primary advantage is that it allows you to create Tk apps that look > like native applications. Additionally, there are some widgets (like > comboboxes) that are only available in ttk. One disadvantage is that > they generally aren't as flexible if you want to set specific > colors/fonts/etc. and the reason for the latter is that native themes are meant to prevail. You can modify them with styles (see top link). Jeff >> If tkx is supposed to be a thin wrapper over Tcl/Tk, does that mean >> there are different types of entry/button/radio widgets in Tcl/Tk? > > Yup. > >> Any answers to the other questions from the previous post (#2, 3, 4, >> 7, 8, 9, 10)? > > For 2-4 I don't know offhand. Check the Tk documentation linked above. > > #7 (fill when resizing) is probably the result of not using -sticky > (when using the grid geometry manager) or -expand and -fill (when using > pack). Getting things to resize the way your used to applications > behaving takes practice. > > For #8 (attaching scollbars to a listbox) I recommend using > Tkx::Scrolled. It's a mega-widget (so "yes" to #9) to make it easy to > add scrollbars to anything scrollable. Making a megawidget isn't all > that hard. Tkx includes LabelFrame as a simple demo. I've made a few and > put them on CPAN. (Tkx::Scrolled is on of them.) > > For #10 (scrollbars after resizing) it sounds like programmatic resizing > isn't triggering the events to update scrollbars. You may need to do it > explicitly. I'd have to dig through the code to be sure. > > -mjc
