我不明白你想要达到什么目的。
QPushButton
和之间的区别在于QToolButton
,QToolButton
已经实现了 PopupMenu(也可以为 QPushButton 轻松完成)据我所知,视觉差异只是 QToolButton 右下角的小箭头,当您使用添加QActions
到QToolButton
QToolButton
这个箭头对我来说只是和之间的区别QPushButton
。但也许我错过了一些东西。
从您的示例(带有图标 + 文本的 QToolButton:如何将两者居中?)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。
在此示例中显示:1)相同的高度QToolButton
和QPushButton
2)PopuMenu 为QPushButton
至于我,我不明白为什么要使用QToolButton
并尝试使它看起来像QPushButton
简单易用的QPushButton
那样QToolButton
#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();
}