关于 Gtk，是否可以在写入条目时禁用加速器？

Question

我正在修改在 C 中编写的现有程序，我在其中添加了一个 GtkEntry。例如，当我尝试在 entry 中写入 "qwerty" 时，它只用 "qwrty" 填充，因为字符 "e" 用作快捷方式（accelerator ) 调用另一个 function，当按下 "e" 时，该功能也会被激活。

我们在entry中写的时候有没有办法避免accelerator callbacks？

Answer 1

是的，您可以在 GtkEntry 的 focus-in-event 回调中 disconnect 您的加速器组，并在您从条目中返回焦点时重新连接它。这是一个例子：

#include <stdio.h>
#include <gtk/gtk.h>

GtkAccelGroup *accel_group;
GClosure *closure;

void accelerator_pressed(void)
{
    printf("Accelerator pressed!\n");
}

gboolean focus_in_callback(void)
{
    gtk_accel_group_disconnect(accel_group, closure);
    g_closure_unref(closure);
    return GDK_EVENT_PROPAGATE;
}
gboolean focus_out_callback(void)
{
    closure = g_cclosure_new(accelerator_pressed, 0, 0);
    gtk_accel_group_connect(accel_group, GDK_KEY_e, (GdkModifierType)0, GTK_ACCEL_VISIBLE, closure);
    return GDK_EVENT_PROPAGATE;
}

int main()
{
    gtk_init(NULL, NULL);

    GtkWidget *window, *box, *entry, *button;

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);
    entry = gtk_entry_new();
    button = gtk_button_new_with_label("click me");

    gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(entry), TRUE, TRUE, 0);
    gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(button), TRUE, TRUE, 0);

    g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
    g_signal_connect(GTK_WIDGET(entry), "focus-in-event", G_CALLBACK(focus_in_callback), NULL);
    g_signal_connect(GTK_WIDGET(entry), "focus-out-event", G_CALLBACK(focus_out_callback), accel_group);

    accel_group = gtk_accel_group_new();
    gtk_window_add_accel_group(GTK_WINDOW(window), accel_group);

    gtk_container_add(GTK_CONTAINER(window), box);
    gtk_widget_show_all(window);

    gtk_main();
}

关于 Gtk，是否可以在写入条目时禁用加速器？

Regardings Gtk, is it possible to disable accelerators while writing in an entry?

c

gtk