I told you about this bug some days ago, I get it in my Nim editor https://github.com/ngtk3/NEd Here is some minimal C code which seems to show a very similar problem. This is for gtk+-3.18.9 Linux AMD64 The task is to replace a GTK notebook with a paned widget containing two notebooks. To reproduce: Compile and run the program. Click on Tab2 to make textview 2 visible. Enter a long text line, so that bottom scrollbar becomes visible. Click on Tab1 to make textview 1 visible. Click into textview1 so that paned is created. Resize window by dragging lower left corner of window. You should get messages like bassi:4400): Gdk-CRITICAL **: gdk_window_move_resize_internal: assertion 'GDK_IS_WINDOW (window)' failed It is really not easy to generate this bug, so my assumption is that the problem is inside of GTK, but maybe I am doing something wrong indeed. #include <gtk/gtk.h> // based on https://developer.gnome.org/gtk3/stable/gtk-getting-started.html#id-1.2.3.5 // gcc `pkg-config --cflags gtk+-3.0` -o bassi bassi.c `pkg-config --libs gtk+-3.0` #include <gtk/gtk.h> static gboolean button_press_cb (GtkWidget *widget, GdkEvent *event, gpointer window) { GtkWidget *notebook1; GtkWidget *notebook2; GtkWidget *paned1; GtkWidget *textview3; GtkWidget *scrolled3; notebook1 = gtk_bin_get_child (GTK_BIN(window)); g_object_ref(notebook1); gtk_container_remove (GTK_CONTAINER (window), notebook1); paned1 = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL); gtk_paned_pack1 (GTK_PANED (paned1), notebook1, TRUE, FALSE); notebook2 = gtk_notebook_new (); scrolled3 = gtk_scrolled_window_new (NULL, NULL); textview3 = gtk_text_view_new (); gtk_container_add (GTK_CONTAINER (scrolled3), textview3); gtk_notebook_append_page (GTK_NOTEBOOK (notebook2), scrolled3, NULL); gtk_paned_pack2 (GTK_PANED (paned1), notebook2, TRUE, FALSE); gtk_container_add (GTK_CONTAINER (window), paned1); gtk_widget_show_all (window); g_object_unref(notebook1); return FALSE; } static void activate (GtkApplication *app, gpointer user_data) { GtkWidget *window; GtkWidget *scrolled1; GtkWidget *scrolled2; GtkWidget *textview1; GtkWidget *textview2; GtkWidget *notebook1; window = gtk_application_window_new (app); gtk_window_set_title (GTK_WINDOW (window), "Window"); gtk_window_set_default_size (GTK_WINDOW (window), 200, 200); notebook1 = gtk_notebook_new (); scrolled1 = gtk_scrolled_window_new (NULL, NULL); textview1 = gtk_text_view_new (); gtk_container_add (GTK_CONTAINER (scrolled1), textview1); g_signal_connect (textview1, "button-press-event", G_CALLBACK (button_press_cb), window); scrolled2 = gtk_scrolled_window_new (NULL, NULL); textview2 = gtk_text_view_new (); gtk_container_add (GTK_CONTAINER (scrolled2), textview2); gtk_notebook_append_page (GTK_NOTEBOOK (notebook1), scrolled1, NULL); gtk_notebook_append_page (GTK_NOTEBOOK (notebook1), scrolled2, NULL); gtk_container_add (GTK_CONTAINER (window), notebook1); gtk_widget_show_all (window); } int main (int argc, char **argv) { GtkApplication *app; int status; app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE); g_signal_connect (app, "activate", G_CALLBACK (activate), NULL); status = g_application_run (G_APPLICATION (app), argc, argv); g_object_unref (app); return status; } _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
