c++ - 将QKeySequence/QKeySequenceEdit限制为仅一个快捷方式

是否可以限制QKeySequence在QKeySequenceEdit中仅显示一个快捷方式？目前，它最多支持4个快捷方式。我的应用程序仅支持一种快捷方式的键序列，例如Ctrl+A或Ctrl+C，而不是例如Ctrl+A, D或Ctrl+C, X, Z。

是否可以将QKeySequence或QKeySequenceEdit限制为一个键序列？

最佳答案

解决了它，不是最好的解决方案，而是快速的解决方案。。。如果您想进一步定制，我想必须自己构建。

customkeysequenceedit.h:

#ifndef CUSTOMKEYSEQUENCEEDIT_H
#define CUSTOMKEYSEQUENCEEDIT_H

#include <QKeySequenceEdit>

class QKeyEvent;

class CustomKeySequenceEdit : public QKeySequenceEdit
{
    Q_OBJECT

public:
    explicit CustomKeySequenceEdit(QWidget *parent = 0);
    ~CustomKeySequenceEdit();

protected:
    void keyPressEvent(QKeyEvent *pEvent);
};

#endif // CUSTOMKEYSEQUENCEEDIT_H

customkeysequenceedit.cpp:

#include "customkeysequenceedit.h"

#include <QKeyEvent>

CustomKeySequenceEdit::CustomKeySequenceEdit(QWidget *parent) : QKeySequenceEdit(parent) { }

CustomKeySequenceEdit::~CustomKeySequenceEdit() { }

void CustomKeySequenceEdit::keyPressEvent(QKeyEvent *pEvent)
{
    QKeySequenceEdit::keyPressEvent(pEvent);

    QKeySequence seq(QKeySequence::fromString(keySequence().toString().split(", ").first()));
    setKeySequence(seq);

}