GHashTableIter 将 GtkSpinButton 设置为可调整

发布于 2024-11-04 19:52:12 字数 526 浏览 0 评论 0原文

我需要将我的 GHashTable - SpinButtons 的组件更改为其 Adjustments

我认为这可以解决问题，但显然事实并非如此。 Gdb 没有多大帮助（step 只是跳过）

GHashTableIter adjusthashtable;
gpointer key, value;

g_hash_table_iter_init (&adjusthashtable, widgetbuffer);
while (g_hash_table_iter_next (&adjusthashtable, &key, &value)) 
{
    if(strcmp(G_OBJECT_TYPE_NAME(value),"GtkSpinButton") == 0){
        value = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(value));
    }
}

原文

I need to alter components of my GHashTable - SpinButtons - to their Adjustments

I assumed this would do the trick, but apparently it doesn't. Gdb doesn't help much (step just steps over)

GHashTableIter adjusthashtable;
gpointer key, value;

g_hash_table_iter_init (&adjusthashtable, widgetbuffer);
while (g_hash_table_iter_next (&adjusthashtable, &key, &value)) 
{
    if(strcmp(G_OBJECT_TYPE_NAME(value),"GtkSpinButton") == 0){
        value = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(value));
    }
}

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

放低过去 2024-11-11 19:52:12

您需要使用旧键将新值重新插入到哈希表中。唯一的问题是这可能会使您的迭代器无效，因此您可能需要重新初始化它。您还可以比现在更有效地检查小部件是否是旋转按钮，因此内部循环将变为：

if(GTK_IS_SPIN_BUTTON(value)) {
    g_hash_table_insert(widgetbuffer, key, gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(value)));
    g_hash_table_iter_init(&adjusthashtable, widgetbuffer);
}

You need to re-insert the new value into the hashtable with the old key. The only problem is that that might invalidate your iterator, so you might need to reinitialize it. You can also check if the widget is a spin button much more efficiently than you are doing now, so the inner loop would become:

if(GTK_IS_SPIN_BUTTON(value)) {
    g_hash_table_insert(widgetbuffer, key, gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(value)));
    g_hash_table_iter_init(&adjusthashtable, widgetbuffer);
}

回复收藏 0 原文

~没有更多了~