将 QKeySequence/QKeySequenceEdit 限制为只有一个快捷方式

Question

是否可以限制QKeySequence只显示一个快捷方式QKeySequenceEdit？目前它最多支持 4 个快捷方式。我的应用程序仅支持一个快捷方式的按键序列，例如Ctrl+Aor Ctrl+C，而不支持例如Ctrl+A, Dor Ctrl+C, X, Z。

是否可以限制QKeySequence或QKeySequenceEdit仅使用一个按键序列？

Answer 1

解决了它，不是最好的解决方案，但很快......如果你想要更多定制的东西，我认为你必须自己构建它......

自定义键序列edit.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

自定义键序列edit.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);

}