QHBoxLayoutalignment不按預期工作

Question

我在QHBoxLayout佈局中添加了一個按鈕，它在右側對齊。

我的意圖是在按鈕的頂部和右側留出1釐米的間隙。

m_clearButton = new QPushButton(widget); 
m_clearButton->setText("Clear"); 
m_clearButton->setMinimumWidth(35); 
m_clearButton->setMinimumHeight(10); 
m_clearButton->setFocusPolicy(Qt::NoFocus); 

QHBoxLayout * mainLyt1 = new QHBoxLayout(this); 
mainLyt1->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding)); 
mainLyt1->addWidget(m_clearButton,0,Qt::AlignRight); 

任何輸入被感激，謝謝

Answer 1

可以內容邊距設置爲該佈局。 http://doc.qt.io/qt-4.8/qlayout.html#setContentsMargins