搜索框实现
QMargins margins = m_lineEditSearch->textMargins(); m_lineEditSearch->setTextMargins(2, margins.top(), margins.right(), margins.bottom()); m_lineEditSearch->setPlaceholderText(tr("搜索")); connect(m_lineEditSearch, SIGNAL(textChanged(QString)),this,SLOT(OnTextChanged(QString)),Qt::UniqueConnection); QHBoxLayout *pSearchLayout = new QHBoxLayout(); pSearchLayout->addStretch(); pSearchLayout->addWidget(m_labSearch); pSearchLayout->setSpacing(0); pSearchLayout->setContentsMargins(0, 0, 0, 0); m_lineEditSearch->setLayout(pSearchLayout);