添加小部件时更新 Gtk 容器

发布于 2024-12-11 21:34:33 字数 792 浏览 0 评论 0原文

我有一些代码，在 UI 最初构建后，用一些数据中的新小部件填充 GtkVBox。

所以有一些代码稍后运行，看起来像这样：

gchar* str = "something or other";
ascii_labels [i] = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (ascii_labels [i]), str);

ascii_event_boxes [i] = gtk_event_box_new ();

gtk_container_add (GTK_CONTAINER (ascii_event_boxes [i]),
                   ascii_labels [i]);

gtk_box_pack_start (GTK_BOX (ascii_box),
                    ascii_event_boxes [i],
                    FALSE, FALSE, 0);

在某个循环中。稍后我必须

gtk_widget_show_all (ascii_box);

设置可见性。这似乎有效，因为当我使用 GtkParasite 运行生成的应用程序时，我可以看到小部件正确嵌套在小部件树中，并且它们被设置为可见。

不幸的是，它们实际上并没有出现在应用程序的窗口中！我认为我错过了某种“请更新自己”调用的原因是，如果我从 GtkParasite 工具切换其中一个小部件的可见性，所有其他丢失的小部件都会神奇地出现！

谁能告诉我我错过了什么？

原文

I've got some code which populates a GtkVBox with new widgets from some data, after the UI is initially built.

So there's some code which runs later looking something like this:

gchar* str = "something or other";
ascii_labels [i] = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (ascii_labels [i]), str);

ascii_event_boxes [i] = gtk_event_box_new ();

gtk_container_add (GTK_CONTAINER (ascii_event_boxes [i]),
                   ascii_labels [i]);

gtk_box_pack_start (GTK_BOX (ascii_box),
                    ascii_event_boxes [i],
                    FALSE, FALSE, 0);

in some loop. A bit later I have

gtk_widget_show_all (ascii_box);

to set visibility. This seems to work, in that when I run the resulting application with GtkParasite, I can see the widgets nested correctly in the Widget Tree and they are set to be visible.

Unfortunately, they don't actually appear in the application's window! The reason I think I'm missing some sort of "update yourself please" call is that if I toggle the visibility of one of those widgets from the GtkParasite tool, all the other widgets that were missing magically appear!

Can anyone tell me what I'm missing?

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