Package: libgtk2.0-0
Version: 2.6.2-4
Severity: important
The number of selected rows in a GtkTreeVew is incorrect in "cursor-changed"
callback when rows are selected with a modefier - Ctrl or Shift.
This problem does not happen when rows are selected without a modifier
or when number of selected rows is reported in another callback.
By the look of it, when modifiers are used the selection is made before the
collback but GtkTreeSelection of the GtkTreeView is updated after.
Unfortunately, I'm not familiar with libgtk2.0 internals to know for sure.
Attached is a small program showing the problem.
Hope it helps,
Igor
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.11
Locale: LANG=C, LC_CTYPE=ru_RU.KOI8-R (charmap=KOI8-R)
Versions of packages libgtk2.0-0 depends on:
ii libatk1.0-0 1.8.0-4 The ATK accessibility toolkit
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libfontconfig1 2.3.1-2 generic font configuration library
ii libfreetype6 2.1.7-2.3 FreeType 2 font engine, shared lib
ii libglib2.0-0 2.6.3-1 The GLib library of C routines
ii libgtk2.0-bin 2.6.2-4 The programs for the GTK+ graphica
ii libgtk2.0-common 2.6.2-4 Common files for the GTK+ graphica
ii libjpeg62 6b-10 The Independent JPEG Group's JPEG
ii libpango1.0-0 1.8.1-1 Layout and rendering of internatio
ii libpng12-0 1.2.8rel-1 PNG library - runtime
ii libtiff4 3.7.2-1 Tag Image File Format (TIFF) libra
ii libx11-6 4.3.0.dfsg.1-12.0.1 X Window System protocol client li
ii libxcursor1 1.1.3-1 X cursor management library
ii libxext6 4.3.0.dfsg.1-12.0.1 X Window System miscellaneous exte
ii libxft2 2.1.2-6 FreeType-based font drawing librar
ii libxi6 4.3.0.dfsg.1-12.0.1 X Window System Input extension li
ii libxrandr2 4.3.0.dfsg.1-12.0.1 X Window System Resize, Rotate and
ii libxrender1 0.8.3-7 X Rendering Extension client libra
ii xlibs 4.3.0.dfsg.1-12 X Keyboard Extension (XKB) configu
ii zlib1g 1:1.2.2-4 compression library - runtime
-- no debconf information
/*
* Compilation instruction:
* gcc -o treeview-bug treeview-bug.c `pkg-config --cflags --libs gtk+-2.0`
*
* Bug reproduction:
* Hold <Ctrl> or <Shift> and click mouse buttons to select columns.
* Compare the number of selected columns you see with the print out
* from the "cursor-changed" callback.
*/
#include <stdio.h>
#include <gtk/gtk.h>
static void show_rows(GtkTreeView *treeview, gpointer data) {
GtkTreeSelection *selection = gtk_tree_view_get_selection(treeview);
printf("Selected %d rows\n",
gtk_tree_selection_count_selected_rows(selection));
}
int main(int argc, char *argv[]) {
GtkWidget *window;
GtkListStore *liststore;
GtkTreeIter iter;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
GtkWidget *treeview;
gtk_set_locale ();
gtk_init (&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Bug report");
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
liststore = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
gtk_list_store_append(liststore, &iter);
gtk_list_store_set(liststore, &iter, 0, "One", 1, "Over there", -1);
gtk_list_store_append(liststore, &iter);
gtk_list_store_set(liststore, &iter, 0, "Two", 1, "Right here", -1);
treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(liststore));
g_signal_connect(treeview, "cursor-changed", G_CALLBACK(show_rows), NULL);
gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview)),
GTK_SELECTION_MULTIPLE);
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes("What",
renderer,
"text", 0,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW(treeview), column);
renderer = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes("Where",
renderer,
"text", 1,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW(treeview), column);
gtk_container_add(GTK_CONTAINER(window), treeview);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
