Qt - 迭代 QRadioButtons

发布于 2024-10-31 03:08:50 字数 678 浏览 6 评论 0原文

我正在为学校做一个小组项目。我小组的一名成员创建了一个包含约 75 个单选按钮的窗口。我想在按下按钮时强制所有这些都“清除”或“未选中”。

有谁知道这样做的好方法？我一直在研究 QObjectList 但我不能简单地执行 QObjectList *children = new QObjectList(ui->groupBox->children());并使用 for 循环循环它们，因为 QObjectList 似乎没有下一个方法。

我也尝试过做类似的事情

QObjectList *children = new QObjectList(ui->groupBox->children());
for(QObject *iterator = children.first(); iterator!=NULL; children.pop_front()){
    iterator = children.first();
    iterator->at(0)->setCheckabled(false);
}

，但是因为迭代器是 QObject，所以 setCheckable 不存在，就像单选按钮一样。

想法/提示将不胜感激。

编辑：我什至会提示如何迭代具有相似名称的变量。例如，我的所有单选按钮都命名为 RadioButton_1、RadioButton_2 等。

原文

I have a group project for school that I am working on. A member of my group has created a window that has ~75 radio buttons. I want to force all of them to be "clear" or "unchecked" on a button press.

Does anyone know a good way to go about doing this? I have been looking into QObjectList but I can't simply do QObjectList *children = new QObjectList(ui->groupBox->children()); and loop them using a for loop as QObjectList does not appear to have a next method..

I have also tried to do something like

QObjectList *children = new QObjectList(ui->groupBox->children());
for(QObject *iterator = children.first(); iterator!=NULL; children.pop_front()){
    iterator = children.first();
    iterator->at(0)->setCheckabled(false);
}

But because iterator is a QObject, setCheckable does not exist like on a radio button.

Thoughts/hints would be appreciated.

Edit: I'll even take a hint on a way to iterate through variables with similar names. For instance, all of my radiobuttons are named RadioButton_1, RadioButton_2, etc.

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妄想挽回 2024-11-07 03:08:50

使用 QButtonGroup，将其设置为独占（然后在一次）。它还为您提供当前选中的按钮，以防您也想取消选中它。（根本没有选中的按钮）。

另请注意，您可能想要修改的是“checked”属性，而不是“checkable”（其中 false 表示该按钮根本无法选中/取消选中）。

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生来就爱笑 2024-11-07 03:08:50

如果您不喜欢使用 QButtonGroup（太多的设置工作或出于任何其他原因），请使用如下迭代：

QListIterator<QObject *> i(ui->groupBox->children());
while (i.hasNext())
{
    QRadioButton* b = qobject_cast<QRadioButton*>( i.next() );
    if (b > 0 && b->isChecked()) {
        b->setAutoExclusive(false);
        b->setChecked(false);
        b->setAutoExclusive(true);
    }
}

很可能您需要操作自动独占（如上面的代码块中所做的那样）取消选中所有单选按钮（另请参阅@Kristofer 的回答：https://stackoverflow.com/a/9375491/1150303）

If you don't like using QButtonGroup (too much setup effort or for whatever other reasons), then use some iteration like this:

QListIterator<QObject *> i(ui->groupBox->children());
while (i.hasNext())
{
    QRadioButton* b = qobject_cast<QRadioButton*>( i.next() );
    if (b > 0 && b->isChecked()) {
        b->setAutoExclusive(false);
        b->setChecked(false);
        b->setAutoExclusive(true);
    }
}

Most likely you need to manipulate autoexclusive (as done in the above code block) to have all radio buttons unchecked (see also @Kristofer's answer: https://stackoverflow.com/a/9375491/1150303)

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