Hi there, I've been trying to port an application of mine to Gtk+ 3 and have been having some issues. Well, only one issue, but I've been struggling with it for a whole month now. I posted to gtk-app-devel-list but never had any responses there; so thought this might be a more appropriate forum (apologies for the cross post for those who subscribe to both). My application has a vertical stack of GtkTextViews that I want to appear immediately one after another. Under Gtk+ 2 everything worked fine in a VBox, but with Gtk+ 3 I started getting extra vertical padding or spacing between some of GtkTextViews. Seemingly random, but I suppose there's a pattern in there somewhere. I thought I'd try rewriting the application to use the new GtkGrids to see if that helped, but it didn't. Having a quick look around I see the issues seem to be same as in bug 650267 [https://bugzilla.gnome.org/show_bug.cgi?id=650267] but there hasn't been any updates on that since it was raised about a year ago, which took me to gtk-app-devel-list first, and now here. There's a simple test program below which seems to reproduce the issue in the bug above. Like the original report mentioned, the GtkTextViews appear narrow and very tall by default. More difficult for me to understand is why there's extra vertical padding in the widgets without the focus, i.e., the top two of the three GtkTextViews in this example. Just clicking on either of the top two GtkTextViews will suddenly resize it down to the correct size! Setting hexpand TRUE on the GtkTextViews does help with the initial sizings: everything 'looks' OK until I resize the window, making it wider so the text renders in fewer lines in the GtkTextViews. I then get similar behaviour as before: the GtkTextViews without the focus don't automatically resize, only suddenly and jarringly doing so when they receive focus. Moreover, if I then narrow the window again the GtkTextViews don't resize down horizontally, as if the viewport doesn't automatically contract (regardless of the policy I set on the horizontal scrollbar of the GtkScrolledWindow). So, can anyone offer me any help; or an explanation as to what's going on? I've spent a large amount of time looking at the source code trying to figure out what's happening with the new height-for-width geometry management, but I'm not sure I get it. My current thinking is that I might need to write a custom widget to wrap each GtkTextView that will size "how I want" (which is really just "how Gtk+ 2 used to do it") using the new height-for-width approach, and I've got that going "about 80% right", but it's got its issues and I fear that's going in the wrong direction altogether and that I'm missing something fundamental! Any ideas? Thanks in advance, Paul --8<-- #include <gtk/gtk.h> #include <string.h> const char text[] = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod " "tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim " "veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea " "commodo consequat."; static GtkWidget *create_widget() { GtkWidget *widget = gtk_text_view_new(); gtk_text_buffer_set_text(gtk_text_view_get_buffer(GTK_TEXT_VIEW(widget)), text, strlen(text)); gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(widget), GTK_WRAP_WORD); //gtk_widget_set_hexpand(widget, TRUE); /* helps with 'initial' sizings */ return widget; } int main(int argc, char **argv) { gtk_init(&argc, &argv); GtkWidget *grid = gtk_grid_new(); gtk_grid_attach(GTK_GRID(grid), create_widget(), 0, 0, 1, 1); gtk_grid_attach(GTK_GRID(grid), create_widget(), 0, 1, 1, 1); gtk_grid_attach(GTK_GRID(grid), create_widget(), 0, 2, 1, 1); GtkWidget *scrolled_window = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled_window), grid); GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(window), 500, 300); gtk_container_add(GTK_CONTAINER(window), scrolled_window); g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL); gtk_widget_show_all(window); gtk_main(); return 0; } --8<-- _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
