QToolButton(2)

?解决QToolButton Icon没有悬浮样式的问题

#ifndef CTOOLBUTTONSTYLE_H
#define CTOOLBUTTONSTYLE_H
#include <QProxyStyle>
#include <QToolButton>

class CToolButton;
class CToolButtonStyle : public QProxyStyle
{
    Q_OBJECT

public:
    CToolButtonStyle(QToolButton* parent);

    virtual void drawItemPixmap(QPainter* painter, const QRect& rect, int, const QPixmap& pixmap) const override;
    virtual void drawItemText(QPainter* painter, const QRect& rect, int flags, const QPalette& pal, bool enabled,
                              const QString& text, QPalette::ColorRole textRole = QPalette::NoRole) const override;
private:
    CToolButton* m_pButton;
};

#endif

#include "CButtonStyle.h"
#include "CToolButton.h"
#include <QPixmap>

CToolButtonStyle::CToolButtonStyle(QToolButton* parent)
    : QProxyStyle()
{
    setParent(parent);
    m_pButton = dynamic_cast<CToolButton*>(parent);
}

void CToolButtonStyle::drawItemPixmap(QPainter* painter, const QRect& rect, int, const QPixmap& pixmap) const
{
    QPixmap tmpPixmap;
    if(m_pButton->curStatus()==CToolButton::ButtonStatus::NORMAL)
    {
        tmpPixmap.load(m_pButton->getNormalIconPath());
    }
    else if(m_pButton->curStatus()==CToolButton::ButtonStatus::HOVER)
    {
        tmpPixmap.load(m_pButton->getHoverIconPath());
    }
    QProxyStyle::drawItemPixmap(painter, rect, Qt::AlignCenter, tmpPixmap);
}

void CToolButtonStyle::drawItemText(QPainter* painter, const QRect& rect, int flags, const QPalette& pal,
                              bool enabled, const QString& text, QPalette::ColorRole textRole) const
{
    QProxyStyle::drawItemText(painter, rect, flags | Qt::AlignCenter, pal, enabled, text, textRole);
}

#ifndef CTOOLBUTTON_H
#define CTOOLBUTTON_H
#include <QToolButton>

class CToolButtonStyle;
class CToolButton : public QToolButton
{
    Q_OBJECT
    Q_PROPERTY(QString normalIconPath READ getNormalIconPath WRITE setNormalIconPath)
    Q_PROPERTY(QString hoverIconPath READ getHoverIconPath WRITE setHoverIconPath)

public:
    enum ButtonStatus
    {
        NORMAL = 0,
        HOVER
    };

public:
    CToolButton(QWidget* parent = nullptr);
    CToolButton(const QString& text, QWidget* parent = nullptr);

    ButtonStatus curStatus()const{return m_btnStatus;}

    QString getNormalIconPath();
    void setNormalIconPath(const QString& strIconPath);

    QString getHoverIconPath();
    void setHoverIconPath(const QString& strIconPath);

protected:
    virtual void leaveEvent(QEvent* event) override;
    virtual void enterEvent(QEvent* event) override;

private:
    ButtonStatus m_btnStatus;
    QPixmap m_pixmap;
    QString m_normalImagePath;
    QString m_hoverImagePath;
    CToolButtonStyle* m_pToolBtnStyle;
};

#endif

#include "CToolButton.h"
#include <QEvent>
#include "CButtonStyle.h"

CToolButton::CToolButton(QWidget* parent)
    : CToolButton("", parent)
{
}

 CToolButton::CToolButton(const QString& text, QWidget* parent)
    : QToolButton(parent)
    , m_btnStatus(ButtonStatus::NORMAL)
    , m_pToolBtnStyle(nullptr)
{
    setText(text);
    m_pToolBtnStyle = new CToolButtonStyle(this);
    setStyle(m_pToolBtnStyle);
}

 QString CToolButton::getNormalIconPath()
 {
     return m_normalImagePath;
 }

void CToolButton::setNormalIconPath(const QString& strIconPath)
{
    m_normalImagePath = strIconPath;
}

QString CToolButton::getHoverIconPath()
{
    return m_hoverImagePath;
}

void CToolButton::setHoverIconPath(const QString &strIconPath)
{
    m_hoverImagePath=strIconPath;
}

void CToolButton::leaveEvent(QEvent* event)
{
    m_btnStatus = ButtonStatus::NORMAL;
    QToolButton::leaveEvent(event);
}

void CToolButton::enterEvent(QEvent* event)
{
    m_btnStatus = ButtonStatus::HOVER;
    QToolButton::enterEvent(event);
}

?

?使用方法：

 CToolButton *button=new CToolButton(this);
    button->setObjectName("MyButton");
    button->setGeometry(100,200,70,32);
    button->setPopupMode(QToolButton::InstantPopup);
    button->setMenu(menu1);

QToolButton#MyButton
{
	qproperty-icon: url(:/file_pressed.png) center;
	qproperty-normalIconPath: url(:/file_hover.png);
	qproperty-hoverIconPath: url(:/file_pressed.png);
    qproperty-iconSize: 18px 18px;
	qproperty-toolButtonStyle:ToolButtonTextBesideIcon;
	background-color:transparent;
	qproperty-text:"文件"; 
	border:none;
}
QToolButton#MyButton:hover
{
	color:blue;
}
QToolButton#MyButton:pressed
{
	color:red;
}
QToolButton::menu-indicator{width:0px;}/*去掉右下方的三角*/

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