Mon Oct 7 15:10:00 2002 Owen Taylor <otaylor@redhat.com>
* gdk/gdkdisplay.[ch] gdk/gdkinternals.h
gdk/gdkwindow.[ch] gdk/linux-fb/gdkwindow-fb.c
gdk/win32/gdkwindow-win32.c gdk/x11/gdkwindow-x11.c:
- Replace GdkPointerHooks with a multihead-safe
GdkDisplayPointerHooks, leave GdkPointerHooks
around for singlehead.
- Add gdk_display_get_pointer() to get the pointer
location with the screen it is on.
* gdk/gdk.def gdk/gdkdisplay.[ch] gdk/gdkscreen.[ch]:
Change gdk_screen_get_window_at_pointer() to
gdk_display_get_window_at_pointer().
* gtk/gtktreeview.c demos/gtk-demo/changedisplay.c
tests/testgtk.c: Use gdk_display_get_window_at_pointer(),
not gdk_screen_get_window_at_pointer().
* gtk/gtkcolorsel.c: Fix grabbing color to be multihead
safe.
* gtk/gtkwidget.c: Allow gtk_widget_push_colormap (NULL).
since it is useful for writing code that doesn't
know the dcurrent state but needs a clean colormap.
* gtk/gtkrc.c: When loading the settings for a particular
screen, only reset toplevels on that screen.
* gtk/gtkiconfactory.h: Fix #ifdef GTK_MULTIHEAD_SAFE
that should have been #ifndef GTK_MULTIHEAD_SAFE.
Thu Oct 3 14:13:33 2002 Owen Taylor <otaylor@redhat.com>
* gdk/gdkevents.c (gdk_event_new): Add a 'type'
parameter, make public.
* gdk/gdkevents.c (gdk_event_copy): Copy the screen.
* gdk/gdkevents.c gdk/linux-fb/gdkmain-fb.c
gdk/x11/gdkevents-x11.c gdk/win32/gdkevents-win32.c:
_gdk_event_new() => gdk_event_new().
* gdk/win32/gdkevents-win32.c (real_window_procedure):
Fix event_private->screen breakage that results from evil
encapsulation breakage here.
* gtk/gtkclist.c gtk/gtkcombo.c gtk/gtkcontainer.c
gtk/gtkdialog.c gtk/gtkdnd.c gtk/gtkdrawingarea.c
gtk/gtkimcontextsimple.c gtk/gtklist.c gtk/gtkmenu.c
gtk/gtknotebook.c gtk/gtkplug.c gtk/gtkselection.c
gtk/gtktext.c gtk/gtktreeitem.c gtk/gtktreeview.c
gtk/gtkviewport.c gtk/gtkwindow-decorate.c gtk/gtkwindow.c
tests/testgtk.c: Remove most usage of stack-allocated
GdkEvent structures.
* gtk/gtktreeview.c: Use a cut-and-paste of the full
send_focus_event() from gtkwindow.c that does the necessary
notification of the ::has-focus property and setting of
the HAS_FOCUS flag.x
* gtk/gtkdnd.c: Clean up some mess/duplicated code; removing
an extraneous use of a GdkEvent.
Fri Jul 26 22:53:37 2002 Kristian Rietveld <kris@gtk.org>
API additions: _move, _reorder and _swap for stores, path
constructor.
* gtk/gtktreemodel.[ch] (gtk_tree_path_new_from_indices): new function.
* gtk/gtkliststore.[ch]: added gtk_list_store_reorder_func (private),
gtk_list_store_reorder, gtk_list_store_swap, gtk_list_store_move.
* gtk/gtktreestore.[ch]: added gtk_tree_store_reorder_func (private),
gtk_tree_store_reorder, gtk_tree_store_swap, gtk_tree_store_move.
Fri Jul 26 22:32:57 2002 Kristian Rietveld <kris@gtk.org>
Merge from stable:
* gtk/gtktreestore.c (node_free): return FALSE,
(gtk_tree_store_finalize): use g_node_traverse instead of
g_node_children_foreach, so the whole tree will be freed (#88854,
patch from Emmanuel Briot).
Fri Jul 26 22:32:24 2002 Kristian Rietveld <kris@gtk.org>
Merge from stable:
* gtk/gtktreeview.c (gtk_tree_view_button_press): fix some memleaks,
(#84426, patch from Matthias Clasen).
Fri Jul 26 22:31:25 2002 Kristian Rietveld <kris@gtk.org>
Merge from stable:
* gtk/gtktreeview.c (gtk_tree_view_unref_tree_helper): _iter_children
check shouldn't be in g_return_return_val_if_fail (pointed out by
Josh Green, #88997),
(gtk_tree_view_set_model): call _gtk_tree_view_column_unset_model
for each column when we unset the model (part of #82484),
(gtk_tree_view_get_cell_area): return if we ran out of tree or
if we got an invalid path (#82376).
* gtk/gtktreeprivate.h: add _gtk_tree_view_column_unset_model.
* gtk/gtktreeviewcolumn.c: implement _gtk_tree_view_column_unset_model
which disconnects the sort_column_changed_signal (part of #82484).
* gtk/gtkliststore.c (gtk_list_store_insert): append row if the
given postion is off the end of the tree (#85813).
* gtk/gtkentry.c (gtk_cell_editable_key_press_event): let's use
2-space indent, commit changes if up/down keys has been pressed,
this overrides the focus key foo so the user won't be surprised
(#84665).
Tue Jul 2 00:33:26 2002 Jonathan Blandford <jrb@gnome.org>
* gtk/gtktreeview.c (validate_visible_area): only validate the
visible area if we've ever been requisitioned.
Mon Jul 1 17:04:09 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/gtkliststore.c (gtk_list_store_real_set_value): sync up
white space/variable names to match tree_store equiv.
* gtk/gtktreestore.c (gtk_tree_store_real_set_value): sort if we
set the value.
Fri Jun 14 15:41:50 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreeview.c: Fix bug #84268, where validate_rows sometimes
didn't remove itself correctly. Thanks to Dave Camp for the fix.
Fri Jun 14 15:09:11 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreeview.c (gtk_tree_view_set_adjustments):
disconnect_by_func instead of disconnect_by_data. Someone else
could use the same data as us.
* gtk/gtktreeview.c (do_validate_rows): update the adjustment
immediately after we update the size. Fixes some scroll_to bugs.
(validate_visible_area): ditto
Fri Jun 7 23:11:42 2002 Jonathan Blandford <jrb@gnome.org>
* gtk/gtktreeview.c (gtk_tree_view_real_expand_row): Fix sizing
bug.
* docs/reference/gtk/tmpl/gtkbutton.sgml: Remove ^M's.
Not sure why all the docs updated.
Wed May 8 16:14:49 2002 Soeren Sandmann <sandmann@daimi.au.dk>
* gtk/gtktreeview.c
(gtk_tree_view_init): set_redraw_on_allocate (FALSE);
(gtk_tree_view_size_allocate): invalidate last column if width
changed.
(gtk_tree_view_bin_expose): skip over cells that aren't in
event->region
Mon May 6 23:48:14 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_map_expanded_rows_helper): call
func on current node before the child nodes.
Mon May 6 23:17:42 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_motion_draw_column_motion_arrow):
unset user_data before destroying the window. (fixes#80065).
Sun May 5 16:42:32 2002 Kristian Rietveld <kris@gtk.org>
The "big treeview focus patch". Fixes several issues and adds some
goodies. Related bugs: #73676, #73734, #78660.
* gtk/gtktreeview.h: add gtk_tree_view_set_cursor_on_cell
* gtk/gtktreeview.c (gtk_tree_view_button_press): focus on a cell
if applicable,
(gtk_tree_view_bin_expose): set_cell_data before iterating columns,
add support for row-spanning focus rectangles,
(gtk_tree_view_has_special_cell): new function,
(gtk_tree_view_move_cursor_left_right): add support for multiple
focusable cells in one column,
(gtk_tree_view_set_cursor): call _set_cursor_on_cell now,
(gtk_tree_view_set_cursor_on_cell): copy of _set_cursor, extended
with focus_cell parameter,
(gtk_tree_view_search_iter): removed unused column variable,
(gtk_tree_view_start_editing): add neighbor size code to allow
for multiple editable cells in one column.
* gtk/gtktreeviewcolumn.c (_GtkTreeViewColumnCellInfo): add
in_editing_mode field,
(gtk_tree_view_column_get_edited_cell): new function, removed
_get_editable_cell,
(_gtk_tree_view_column_get_cell_at_pos): new function,
(gtk_tree_view_column_pack_end): s/g_new/g_new0/ ...,
(gtk_tree_view_column_cell_process_action): loads of changes to get
it right and to allow for multiple special cells, etc,
(gtk_tree_view_column_cell_first): new function,
(gtk_tree_view_column_cell_last): ditto,
(gtk_tree_view_column_cell_next): ditto,
(gtk_tree_view_column_cell_prev): ditto,
(gtk_tree_view_column_cell_focus): add left and right parameters,
allow for multiple special cells,
(gtk_tree_view_column_cell_is_visible): add assertion,
(gtk_tree_view_column_focus_cell): new function,
(gtk_tree_view_column_stop_editing): unset in_editing_mode flag,
(_gtk_tree_view_column_get_neighbor_sizes): iterate through cells
correctly
* gtk/gtktreeviewcolumn.h: add gtk_tree_view_column_focus_cell
* gtk/gtktreeprivate.h: s/_get_editable_cell/_get_edited_cell/, add
_gtk_tree_view_column_get_cell_at_pos, add new parameters to
_gtk_tree_view_column_cell_focus.
* tests/testtreeedit.c: add some cells in order to test new code.
Mon Apr 29 18:28:00 2002 Owen Taylor <otaylor@redhat.com>
Integrate Erwann Chenede's multihead changes for the gtk/ directory.
* gtk/gtkclipboard.[ch]: Add gtk_clipboard_get_for_display(),
make internals multihead aware.
* gtk/gtkcolorsel.[ch]: Add
gtk_color_selection_set_change_palette_with_screen_hook () [ugh!]
make up for non-multihead safety of
gtk_color_selection_set_change_palette_hook()
* gtk/gtkinvisible.[ch] gtk/gtkmenu.[ch] gtkwindow.[ch]: Add
gtk_{invisible,menu,window}_set_screen(); add "screen" properties
for GtkWindow and GtkMenu.
* gtk/gtkplug.[ch]: Add gtk_plug_construct_for_display(),
gtk_plug_new_for_display(). Multihead fixes.
* gtk/gtkselection.[ch]: Add gtk_selection_owner_set_for_display(),
make internals multihead aware.
* gtk/gtksettings.[ch]: Add gtk_settings_get_for_screen(), get
rid of now-useless gtk_settings_constructor().
* gtk/gtkstyle.[ch]: Add gtk_style_get_font_for_display(), fix
check/radio button indicators bitmap handling to be multihead
safe.
* gtk/gtkwidget.[ch]: Add gtk_widget_get_screen(), gtk_widget_has_screen(),
gtk_widget_get_display(), gtk_widget_get_clipboard(),
gtk_widget_get_root_window().
* gtk/gtkbindings.c gtk/gtkbutton.c gtk/gtkclist.c gtk/gtkcombo.c
gtk/gtkctree.c gtk/gtkdnd.c gtk/gtkfilesel.c gtk/gtkgamma.c
gtk/gtkhandlebox.c gtk/gtkhsv.c gtk/gtkimcontext.c gtk/gtklabel.c
gtk/gtklist.c gtk/gtkmain.c gtk/gtkmenuitem.c gtk/gtkmenushell.c
gtk/gtknotebook.c gtk/gtkoldeditable.c gtk/gtkoptionmenu.c
gtk/gtkpaned.c gtk/gtkpreview.c gtk/gtksocket.c gtk/gtktext.c
gtk/gtktextbuffer.c gtk/gtktextview.c gtk/gtktipsquery.c
gtk/gtktooltips.c gtk/gtktreeview.c gtk/gtktreeviewcolumn.c:
misc mechanical multihead-safety fixes.
* gtk/gtkclipboard.c: Use a GtkImage rather than a pixmap for
the dropper, look up the color palette only at realization time,
other multihead fixes.
* gtk/gtkcombo.c (gtk_combo_unrealize): Popdown the list when
unrealizing.
* gtk/gtkentry.c: Only claim ownership of the primary selection
when realized, misc multihead fixes.
* gtk/gtkfontsel.c: Only fill in fonts when attached to a screen,
fix gtk_font_selection_get_font() for multihead.
* gtk/gtkgc.c: make the depth => drawable hash per-screen.
* gtk/gtkinvisible.c: Add a constructor that realizes the
widget, so we get a realized widget with g_object_new() as
well gtk_invisible_new() as before.
* gtk/gtkmain.c: Get rid of unused gtk_visual/gtk_colormap
variables.
* gtk/gtktextdisplay.c: Add warnings if stipple bitmaps
are used on the wrong screen.
* gtk/gtktoolbar.c: Make handling of GtkSettings-based layout
read properties and connect to settings when the screen is changed,
rather than on init/finalize.
* gtk/gtkwindow.c: Fix icon handing to be multihead safe ...
default icon pixmaps/mask are only shared between windows on the
same screen. Misc multihead fixes.
Sat Apr 27 13:49:53 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkclipboard.c (gtk_clipboard_get_for_display):
Update docs to reference GDK_SELECTION_CLIPBOARD rather GDK_NONE.
2002-04-29 Alex Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkproperty-fb.c (gdk_property_get):
Fix silly bug, noticed by Sven Neumann.
Sun Apr 28 22:43:55 2002 Jonathan Blandford <jrb@gnome.org>
* gtk/gtktreemodelsort.c (gtk_tree_model_sort_set_sort_func): Fix
so that you can set a new sort func.
Thu Apr 25 23:36:55 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_search_iter): make the search
dialog not scroll horizontally (prolly fixes#74806).
Wed Apr 24 17:34:16 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_stop_editing): temporarily set
->priv->edited_column to NULL. Pleas read the comment in this
function for an explanation (fixes#79632).
Fri Apr 19 23:38:16 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeprivate.h: add _gtk_tree_view_column_autosize
* gtk/gtktreeview.c: privately export _gtk_tree_view_column_autosize,
and add a small note about that function,
(gtk_tree_view_button_press): check for double click and
"not having an autosize" column before autosizing the column,
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_min_width):
call _gtk_tree_view_column_autosize to update autosized column width
(gtk_tree_view_column_set_max_width): ditto
Fri Apr 19 21:06:39 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_size_allocate): subtract
TREE_VIEW_HEADER_HEIGHT from allocation->height to get the real
size for the tree (fixes#72729),
(gtk_tree_view_real_start_editing): correct cell_area->y for
scrolling due to gtk_tree_view_real_set_cursor (fixes#75687)
Fri Apr 19 16:30:09 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeprivate.h, gtk/gtktreeview.c: rename
last_single_clicked{,_2} to last_button_press{,_2}, as the latter
is a more sane name.
* gtk/gtktreeview.c (gtk_tree_view_button_press): use ->priv->anchor
instead of ->priv->cursor, check for the anchor at another place, as
you can go in edit mode without having an anchor.
Tue Apr 16 17:28:21 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_real_collapse_row): check
->priv->cursor and ->priv->anchor rowrefs before removing
node->children from the rbtree. Also check the
->priv->last_single_clicked and ->priv->last_single_clicked_2 rowrefs
(I think I really need to rename those two someday).
Sun Apr 14 16:56:59 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeprivate.h: add _gtk_tree_view_column_get_editable_cell and
_gtk_tree_view_column_get_neighbor_sizes
* gtk/gtktreeviewcolumn.c (struct _GtkTreeViewColumnCellInfo): add
real_width field,
(_gtk_tree_view_column_get_editable_cell): implement,
(gtk_tree_view_column_cell_process_action): fill info->real_width
(_gtk_tree_view_column_get_neighbor_sizes): implement
* gtk/gtktreeview.c (gtk_tree_view_button_press): make the "editable
widget" show up with the same size as the actual cell, so it doesnt
cover the complete column if there are any other cells in that column.
Sat Apr 13 22:49:45 2002 Kristian Rietveld <kris@gtk.org>
Fixes#75510
* gtk/gtktreeselection.c (gtk_tree_selection_get_selected): make this
function work correctly and more sane
* gtk/gtktreeview.c (gtk_tree_view_real_collapse_row): remove
node->children from rbtree before emitting GtkTreeSelection::changed
Sat Apr 13 17:15:12 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtkcellrenderertext.c (gtk_cell_renderer_text_init): dont set
the mode to GTK_CELL_RENDERER_MODE_EDITABLE by default,
(gtk_cell_renderer_text_class_init): for some reason our default for
editable was TRUE, of course this is FALSE.
(gtk_cell_renderer_text_set_property): update mode when editable
has been changed.
Fri Apr 12 18:32:46 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_real_set_cursor): add
clamp_node argument
(toplevel): update usages of gtk_tree_view_real_set_cursor,
(gtk_tree_view_focus_to_cursor): don't let
gtk_tree_view_real_set_cursor clamp the node, so you won't get
unexpected scrolling
Fri Apr 5 18:28:56 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeselection.c (gtk_tree_selection_set_mode): free
anchor row reference after unselecting the selection (fixes#76272)
Fri Apr 5 18:27:48 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_real_expand_row): only return
when we don't have to open all children (fixes#75736)
Fri Apr 5 18:24:24 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_clear): unref
cellrenderer after clearing the attributes of the renderer (fixes
#75592)
Mon Apr 1 22:20:24 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_move_cursor_page_up_down): add
check for y > tree_view->priv->height (fixes#76974)
Mon Apr 1 22:19:39 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreemodelsort.c (gtk_tree_model_sort_sort_level): get
the stamp changes right this time
Mon Apr 1 22:13:24 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreemodel.c (gtk_tree_row_reference_free): only
disconnect the ref callbacks when model == proxy (Thanks go to
Manuel Clos Crespo for the remote debugging)
2002-03-27 Murray Cumming <murrayc@usa.net>
* gtk/gtktreeview.cc: Corrected registered return type of
move-cursor signal. Had to add a marshaller to
gtk/gtkmarshalers.list.
2002-03-26 Dave Camp <dave@ximian.com>
* gtk/gtktreeview.c (gtk_tree_view_button_press): Free the path
after calling gtk_tree_view_row_activated() rather than before.
Sun Mar 24 10:32:38 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreemodel.c (gtk_tree_path_copy): Make path arg const, #75653
* gtk/gtkfontsel.c (gtk_font_selection_show_available_styles): fix
a warning
* gtk/gtktreeview.c (gtk_tree_view_button_press): remove the grab
when we emit row_activated so that listeners of this signal can
grab the mouse, #75629
Wed Mar 20 22:59:23 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtkrbtree.[ch]: add _gtk_rbtree_set_fixed_height()
* gtk/gtktreeprivate.h: add fixed_height_check field
* gtk/gtktreeview.c (gtk_tree_view_init): initialize
scroll_sync_timer and fixed_height_check
(do_validate_rows): add fixed_height_check. If all validated rows
in the first cycle have the same height, then we set that height for
the entire tree. This is some sort of 'fake' optimization, but helps
a lot for the common case. We keep validating the entire tree in
the background though.
(gtk_tree_view_set_model): reset fixed_height_check
Wed Mar 20 16:36:08 2002 Owen Taylor <otaylor@redhat.com>
* gtk/*.c: Patch from Erwann Chenede, #73900 fixing
a lot of warnings with Forte CC, mostly implicit
casts between void * and function pointers.
* gdk/gdkevents.c (gdk_event_get_state): GdkEventVisibility's
state field is not a GdkModifierType. (Also #73900)
Sun Mar 17 01:11:16 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_size_request): use
do_validate_rows instead of validate_rows_handler (fix by
Mike Pieper, #74126)
Sat Mar 16 23:54:56 2002 Kristian Rietveld <kris@gtk.org>
* gdk/x11/gdkwindow-x11.c (gdk_window_set_static_bit_gravity): just
return when we have an input_only window (fix by Owen Taylor)
* gtk/gtktreeprivate.h (struct _GtkTreeViewPrivate): add
scroll_sync_timer
* gtk/gtktreeview.c (install_scroll_sync_handler): new function,
(scroll_sync_handler): ditto,
(gtk_tree_view_unrealize): take scroll_sync_timer into account
(gtk_tree_view_row_deleted): install scroll_sync_timer instead of
calling top_row_to_dy/dy_to_top_row directly
-- this greatly speeds up clearing the model (#73199)
* gtk/gtktreemodelsort.c
(gtk_tree_model_sort_convert_path_to_child_path): fix up this function,
for some reason I really screwed it up (fixes#74663)
Mon Mar 11 01:25:14 2002 Kristian Rietveld <kris@gtk.org>
* gtk/gtktreeview.c (gtk_tree_view_button_press): compare path with
cursor path and not with the selected iter in the 'decide to edit'
check
Thu Mar 7 16:46:58 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/gtktreeview.c (validate_visible_area): get rid of really
bad focus loop.
(gtk_tree_view_clamp_node_visible): only clamp the node when
realized. Need to replace this with scroll_to_cell sometime.
(gtk_tree_view_header_focus): clickable or reorderable columns are
focusable, #73656
* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_get_widget): fix
docs to reflect behaviour change, #73682
Thu Mar 7 02:58:16 2002 Jonathan Blandford <jrb@redhat.com>
* gtk/tmpl/gtkliststore.sgml: start implementing
* gtk/question_index.sgml: "I can set with the tree, but not
get???!?!"
Wed Mar 6 23:20:51 2002 Jonathan Blandford <jrb@redhat.com>
and Kristian Rietveld <kris@gtk.org>
Finishing touch for 2.0.0 release, fixes#70782, #72729, the
'stealth' bug and other last-minute minor issues.
* gtk/gtktreeview.c (gtk_tree_view_bin_expose): set dnd dest line
drawing right. We can't draw the line at the position of the next
row, because that one still has to be drawn. So draw everthing at
a -1 offset.
(validate_visible_area): add check for invalid descendants and
NULL scroll_to_path path, get scrolling right. Also, fix the
area_above value. Pretty amazing I got it wrong.
(get_logical_dest_row): add gtk-tree-model-drop-append magic, so
dragging a row to the end of the model works right.
(gtk_tree_view_get_dest_row_at_pos): minor floating point fix
(gtk_tree_view_start_editing): add call to validate_row
(gtk_tree_view_tree_to_widget_coords): Never subtract
HEADER_HEIGHT from y values anymore!!!
(gtk_tree_view_widget_coords_to_tree): ditto.
(gtk_tree_view_scroll_to_point): allow -1 as values for the
scroll_to coords
(gtk_tree_view_move_cursor_page_up_down): Don't need scroll_to_y
as clamp_node_visible will make it work.
* gtk/gtktreestore.c (gtk_tree_store_drag_data_received): also check
path depth, as we can't get iters from empty paths
* gtk/gtkliststore.c (gtk_list_store_drag_data_received): handle
gtk-tree-model-drop-append
* gtk/gtktreednd.c (gtk_tree_set_row_drag_data): free path_str
* tests/testtreeflow.c (main): select path where we are scrolling to
* gtk/gtktreemodelsort.c: (gtk_tree_model_sort_insert_value):
Update offsets before finding where to insert the new value.
* gtk/gtktreeview.c: (validate_visible_area): Make sure we redraw when
we scroll, instead of just updating the scroll position variables.
