Qt5实现自定义标题栏

#include "XMainWindowTitle.h" #include <QHBoxLayout> #include <QMouseEvent> #include <QStyle> #include <QLabel> XMainWindowTitle::XMainWindowTitle(QWidget *parent) { // 不继承父组件的背景色 setAutoFillBackground(true); // 使用 Highlight 作为背景色 setBackgroundRole(QPalette::AlternateBase); minimize = new QToolButton(this); maximize = new QToolButton(this); close= new QToolButton(this); QPixmap pix = style()->standardPixmap(QStyle::SP_TitleBarCloseButton); close->setIcon(pix); close->setToolTip("close"); close->setStyleSheet("QToolButton:hover{background-color:rgb(219,75,75);}"); maxPix = style()->standardPixmap(QStyle::SP_TitleBarMaxButton); maximize->setIcon(maxPix); maximize->setToolTip("restore"); pix = style()->standardPixmap(QStyle::SP_TitleBarMinButton); minimize->setIcon(pix); minimize->setToolTip("minsize"); restorePix = style()->standardPixmap(QStyle::SP_TitleBarNormalButton); minimize->setMinimumSize(30,25); close->setMinimumSize(30,25); maximize->setMinimumSize(30,25); QLabel *label = new QLabel(this); label->setText("Window Title"); parent->setWindowTitle("Window Title"); QHBoxLayout *hbox = new QHBoxLayout(this); hbox->addWidget(label); hbox->addWidget(minimize); hbox->addWidget(maximize); hbox->addWidget(close); hbox->insertStretch(1, 500); hbox->setSpacing(0); setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed); maxNormal = false; connect(close, SIGNAL( clicked() ), parent, SLOT(close() ) ); connect(minimize, SIGNAL( clicked() ), this, SLOT(showSmall() ) ); connect(maximize, SIGNAL( clicked() ), this, SLOT(showMaxRestore() ) ); } void XMainWindowTitle::showSmall() { parentWidget()->showMinimized(); } void XMainWindowTitle::showMaxRestore() { if (maxNormal) { parentWidget()->showNormal(); maxNormal = !maxNormal; maximize->setIcon(maxPix); } else { parentWidget()->showMaximized(); maxNormal = !maxNormal; maximize->setIcon(restorePix); } } void XMainWindowTitle::mousePressEvent(QMouseEvent *e) { startPos = e->globalPos(); clickPos = mapToParent(e->pos()); } void XMainWindowTitle::mouseMoveEvent(QMouseEvent *e) { if (maxNormal) return; parentWidget()->move(e->globalPos() - clickPos); } void XMainWindowTitle::mouseDoubleClickEvent(QMouseEvent *e) { if(e->button() == Qt::LeftButton) { //showMaxRestore(); } }