On Fri, Apr 16, 2004 at 10:22:18 -0500, B McAndrews wrote:
hey, it worked! one problem though, I get this gtk message when I call: $scroll1->add($paned); Gtk-WARNING **: gtk_scrolled_window_add(): cannot add non scrollable widget use gtk_scrolled_window_add_with_viewport() instead at ./freeze2.pl line 82. when I use: add_with_viewport instead, I'm back to the previous problem.
Because you can't add paned to scrolled_window. You can do one of two
things:
1) You can add the scrolled window to the right pane and the right view
right into it. And then just bind the left view to the same
adjustments. So the packing goes:
- Paned
- left TreeView
- ScrolledWindow
- right TreeView
and then you bind left TreeView to proper adjustments (the right is
already bound).
2) Use a table instead of scrolled_window and create the scrollbars
manualy. So the packing goes:
- Table
- (0,1,0,1) Paned
- left TreeView
- right TreeView
- (1,2,0,1) VScrollBar
- (0,1,1,2) HScrollBar
and you manualy _create_ and bind the adjustments everywhere.
Or alternatively the packing may be just:
- Table
- (0,1,0,1) left TreeView
- (1,2,0,1) right TreeView
- (2,3,0,1) VScrollBar
- (1,2,1,2) HScrollBar
which will look nicer (you will only have the scrollbar under the
scrolled part), but I am not sure how adjusting of the left view will
work (actualy, it should work and look right).
Jan Hudec wrote:On Fri, Apr 16, 2004 at 10:03:23 -0500, B McAndrews wrote:I modified the program from yesterday to implement the viewport idea, it works, but now the title columns get scrolled away :)Oh, man, of course, I am stupid! Since TreeView has the scrolling support itself, just remove the viewports and bind the adjustments directly to the TreeViews. The TreeView itself also has ->set_vadjustment and ->set_hadjustment.use strict; use Gtk2 -init; my $model = Gtk2::ListStore->new (('Glib::Int')x16); for (0..99) { $model->set ($model->append, 0, $_, map { ($_, int (255 * rand())) } 1..$model->get_n_columns-1 ); } my $window = Gtk2::Window->new; my $paned = Gtk2::HPaned->new; my $view1 = Gtk2::TreeView->new ($model); my $view2 = Gtk2::TreeView->new ($model); my $vp1 = Gtk2::Viewport->new; my $vp2 = Gtk2::Viewport->new; # left view, showing only the first column my $col = Gtk2::TreeViewColumn->new_with_attributes ('Col 0', Gtk2::CellRendererText->new, text => 0); $view1->append_column ($col); for (1..$model->get_n_columns-1) { $col = Gtk2::TreeViewColumn->new_with_attributes ("Col $_", Gtk2::CellRendererText->new, text => $_); $view2->append_column ($col); } # right view, showing the remaining columns $vp1->add($view1); my $scroll1 = Gtk2::ScrolledWindow->new; $paned->add1 ($vp1); # linked scrolling #my $scroll2 = Gtk2::ScrolledWindow->new (undef, $scroll1->get_vadjustment); $vp2->add($view2); $paned->add($vp2); $scroll1->add_with_viewport($paned); $window->add($scroll1); $window->set_default_size (400, 400); $window->signal_connect (destroy => sub {Gtk2->main_quit}); $window->show_all; Gtk2->main; Jan Hudec wrote:On Fri, Apr 16, 2004 at 10:22:17 -0400, muppet wrote:Jan Hudec said:On Thu, Apr 15, 2004 at 12:46:05 -0400, muppet wrote:B McAndrews said:I'd like to "freeze" a tree view column (the first one) so that horizontal scrolling will always show this column. Is this posible? Or can I have some sort of split view?ahem: The GtkTreeView is neither a sheet widget nor microsoft excel. But what you *can* do is use a paned widget, with a single-column view in the left pane and a multi-column view in the right pane. Both views can look at the same model, and you can make them both use the same scrollbar adjustments so they will scroll together. The trouble is that i don't know if it's possible to hide the scrollbar on the left pane without implementing your own container.IIRC it's packed like: +ScrolledWindow----+ |+Viewport------+ ^| ||+the widget--+| v| ||| || S| ||| || c| ||| || r| ||| || o| ||| || l| ||+------------+| l| |+--------------+ V| |<HScrollBar----> | +------------------+ And the scrolledwindow is just a 2x2 table, that shows/hides the scrollbars acoording to difference between it's allocation and child's requisition. It is possible to pack a viewport and scrollbars in a normal table, except the scrollbars must always be visible. Note: I am not actualy sure if ScrolledWindow uses Viewport internaly, but I am sure a Viewport exists.$scrolled_window->add_with_viewport ($child) won't buy you anything, because a) the bottom scrollbar in the paned widget will not always be in view and b) the TreeView is a natively scrolling widget, and using a viewport on it takes a rather substantial performance hit, if i recall correctly.I am talking about NOT using scrolled_window.So, to do that with the proper scrollbars, you'll have to create your own container widget with your own scrollbars and viewports, and use the adjustments properly. Getting that to work is something i don't know how to do in five minutes, so forgive me if i don't include an example.I think you don't have to write anything. Just pack it like this: +Table------------------------+ |+Viewport 1--++Viewport 2--+^| ||+column 1--+||+the rest--+|V| ||| |||| ||S| ||| |||| ||c| ||| |||| ||r| ||| |||| ||o| ||| |||| ||l| ||+----------+||+----------+|l| |+------------++------------+V| | <HScrollBar==> | +-----------------------------+ And then bind the Adjustments to the viewports manualy. This should work like ScrolledWindow with both policies set to always, because all the scrolling functionality is in the viewport widget. ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb ucw cz-- Brian McAndrews Archelon bmcandrews efs-us com 312.788.6309------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb ucw cz-- Brian McAndrews Archelon bmcandrews efs-us com 312.788.6309
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Jan 'Bulb' Hudec <bulb ucw cz>
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