CODEWITHSUNDEEP
cgtkscroll
phihag
phihag

Reputation: 287835

Make GtkScrolledWindow display all children by default

How do I initialize a GtkScrolledWindow to avoid scrollbars by growing as much as possible?

By default it seems to be as small as possible.

Demo code (Quit with SIGINT):

#include <gtk/gtk.h>

int main(int argc, char *argv[]) {
    GtkWidget* window;
    GtkWidget* content;
    GtkWidget* sw;

    gtk_init(&argc, &argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    sw = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
            GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_container_add(GTK_CONTAINER(window), sw);
    gtk_widget_show(sw);

    content = gtk_button_new_with_label("This is a very, very"
            "very very very very very very very very long text");
    gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw), content);
    gtk_widget_show(content);

    gtk_widget_show(window);
    gtk_main();

    return 0;
}

Upvotes: 1

Views: 962

Answers (2)

Kim Reece
Kim Reece

Reputation: 1280

I think this both works and is not an ugly hack (much):

int main(int argc, char *argv[]) {
    GtkWidget* window;
    GtkWidget* content;
    GtkWidget* sw;

    GtkRequisition size;
    GtkWidget* viewport;

    gtk_init(&argc, &argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    sw = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
            GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_container_add(GTK_CONTAINER(window), sw);
    gtk_widget_show(sw);

    content = gtk_button_new_with_label("This is a very, very"
            "very very very very very very very very long text");
    gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw), content);
    gtk_widget_show(content);

    gtk_widget_show(window);

    viewport = gtk_widget_get_ancestor(content, GTK_TYPE_VIEWPORT);
    gtk_widget_size_request(viewport, &size);
    gtk_widget_set_size_request(sw, size.width, size.height);

    gtk_main();

    return 0;
}

Upvotes: 1

user25148
user25148

Reputation:

I'm not sure what the proper way to do this is, but I've found that what works best for me is to set the size of the window, and the widgets contained within it usually size themselves correctly:

gtk_window_set_default_size(GTK_WINDOW(window), 1000, 500);

Alternatively, you can set the size of the GtkScrolledWindow:

gtk_widget_set_size_request(window, 500, 250);

Note that in especially this last case, localisation, font sizes, and other such details probably have to be considered when calculationg the size in pixels.

Upvotes: 0

Related Questions