Qt源码分享（三）--自定义menu

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这里分享下，Qt下面的自定义的menu。先上效果图。

我这个只是简单的做个demo，如果你想要更复杂的效果，就要重写QPushButton或者是其他的控件，原理都是一样的。

我贴出里面的重要代码：

void CustomMenu::initMenu()
{
    m_AppMenu = new QMenu(this);
    m_AppMenu->setStyleSheet(
    "QMenu {"
    "background-color:#FFFFFF;"
    "border: 2px solid #FFFFFF;"
    "width:120px;"
    "height:137px;"
    "}"

    "QMenu::separator {"
    "height: 1px; "
    "background: #D9DADB;"
    "}"
        );

    	// 开始游戏
    QPushButton *btn = new QPushButton(tr("start game"), m_AppMenu);
    btn->setMaximumWidth(116);
    btn->setStyleSheet(button.arg("url(:/CustomMenu/res/menu_startup.png)"));
    QWidgetAction *widgetaction = new QWidgetAction(m_AppMenu);
    widgetaction->setDefaultWidget(btn);
    m_AppMenu->addAction(widgetaction);

    // 置顶
     btn = new QPushButton(tr("set top"), m_AppMenu);
     btn->setMaximumWidth(116);
     btn->setStyleSheet(button.arg("url(:/CustomMenu/res/menu_top.png)"));
     widgetaction = new QWidgetAction(m_AppMenu);
     widgetaction->setDefaultWidget(btn);
     m_AppMenu->addAction(widgetaction);

	// 创建快捷方式
    btn = new QPushButton(tr("create shortcut"), m_AppMenu);
    btn->setMaximumWidth(116);
    btn->setStyleSheet(button.arg("url(:/CustomMenu/res/menu_shortcut.png)"));
    widgetaction = new QWidgetAction(m_AppMenu);
    widgetaction->setDefaultWidget(btn);
    m_AppMenu->addAction(widgetaction);

	//加2px间距
	QLabel *firstLine = new QLabel();
    firstLine->setFixedSize(QSize(118, 2));
	widgetaction = new QWidgetAction(m_AppMenu);
	widgetaction->setDefaultWidget(firstLine);
	m_AppMenu->addAction(widgetaction);

    m_AppMenu->addSeparator();

	firstLine = new QLabel();
    firstLine->setFixedSize(QSize(118, 2));
	widgetaction = new QWidgetAction(m_AppMenu);
	widgetaction->setDefaultWidget(firstLine);
	m_AppMenu->addAction(widgetaction);

    // 删除游戏
    btn = new QPushButton(tr("delete game"), m_AppMenu);
    btn->setMaximumWidth(116);
    btn->setStyleSheet(button.arg(""));
    widgetaction = new QWidgetAction(m_AppMenu);
    widgetaction->setDefaultWidget(btn);
    m_AppMenu->addAction(widgetaction);
}

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