带有文本的 QToolButton:将最小高度覆盖为最小常规按钮高度

QToolButton with text: Overwrite minimal height to minic regular button height

我正在显示QToolButtons with icon plus text (Qt::ToolButtonTextBesideIcon) outside of a tool bar. Each button has a QAction associated with it which determines the used icon and the displayed text. All those buttons are placed inside a QGridLayout。到目前为止,一切都很好。

不幸的是,一旦您将 QAction 添加到 QToolButton,Qt 就会自动决定将其缩小到最小尺寸,这不是我想要的 QGridLayout。我使用以下行来纠正水平维度中的行为:

QToolButton* pButton = new QToolButton(0);
pButton->addDefaultAction(pAction);
pButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
pButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);

然而,这仍然使我的按钮的高度小于常规(按钮)按钮。我已经尝试过各种其他尺寸政策,但均未成功。

如何最好地解决这个问题?有确定 "normal" 按钮高度的可靠方法吗?

我的一个想法是创建一个常规的虚拟按钮,将其放置在相同的布局中,然后读取其大小。然后可以将此大小应用于我的 QToolButton 并且虚拟按钮将再次被销毁。有没有更优雅/可靠的方式?

我不明白你想达到什么目的。

QPushButtonQToolButton 之间的区别在于,QToolButton 已经实现了 PopupMenu(对于 QPushButton 也可以轻松完成) 据我了解,当您使用添加 QActionsQToolButton

时,视觉差异只是 QToolButton 右下角的小箭头

这个箭头对我来说只是 QToolButtonQPushButton 之间的区别。但也许我遗漏了什么。

根据您的示例 () 看起来您不想使用该弹出功能。这就是为什么我不明白,为什么要使用 QToolButton 而不是 QPushButtons。

在这个例子中显示: 1) QToolButtonQPushButton 高度相同 2) QPushButton

的 PopuMenu

至于我,我不明白为什么要使用QToolButton并尝试使它看起来像QPushButton,而使用QPushButton作为QToolButton很简单

#include <QtGui>
#include <QtWidgets>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    // Prepare layout
    QMainWindow *window = new QMainWindow;
    QWidget *centralWidget = new QWidget(window);
    QGridLayout *grid = new QGridLayout(centralWidget);

    QTextEdit *textEdit = new QTextEdit();

    window->setCentralWidget(centralWidget);

    QAction *toolAction = new QAction(window->style()->standardIcon(QStyle::SP_MediaPlay), "ToolButton", window);
    QObject::connect(toolAction, &QAction::triggered, [=]() {
       qDebug() << "action";
    });


    QPushButton *pushButton = new QPushButton(toolAction->icon(), "PushButton1", window);
    pushButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    QPushButton *pushButton2 = new QPushButton(toolAction->icon(), "PushButton2", window);
    pushButton2->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    QPushButton *pushButton3 = new QPushButton(toolAction->icon(), "PushButton2", window);
    pushButton3->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    QObject::connect(pushButton3, &QPushButton::released, [window, pushButton3, toolAction](){
       QMenu menu;
       menu.addAction(toolAction);
       QPoint pos = window->mapToGlobal(pushButton3->pos());
       pos += QPoint(0, pushButton3->height());
       menu.exec(pos);
    });

    QObject::connect(pushButton, SIGNAL(pressed()), toolAction, SLOT(trigger()));
    QObject::connect(pushButton2, SIGNAL(pressed()), toolAction, SLOT(trigger()));

    QToolButton *toolButton = new QToolButton(window);
    toolButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    toolButton->setText("Popup action");
    toolButton->addAction(toolAction);
    toolButton->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    QToolButton *toolButton2 = new QToolButton(window);
    toolButton2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    toolButton2->setDefaultAction(toolAction);
    toolButton2->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    toolButton->setMaximumHeight(pushButton->sizeHint().height());
    toolButton->setMinimumHeight(pushButton->sizeHint().height());
    toolButton2->setMaximumHeight(pushButton->sizeHint().height());
    toolButton2->setMinimumHeight(pushButton->sizeHint().height());

    grid->addWidget(textEdit    ,0,0,1,2);
    grid->addWidget(toolButton  ,1,0,1,1);
    grid->addWidget(pushButton  ,1,1,1,1);
    grid->addWidget(toolButton2 ,2,0,1,1);
    grid->addWidget(pushButton2 ,2,1,1,1);
    grid->addWidget(pushButton3 ,3,0,1,2);

    window->show();
    return a.exec();
}