多个定义错误:一个在我的文件中，一个在moc文件中.

问题描述

我有一个名为FindAndReplaceBar的类，其实现是这样的:

I have a class called FindAndReplaceBar, whose implementation is this:

#include "FindAndReplaceBar.h"
#include <QLabel>
#include <QPushButton>
#include <QGridLayout>
#include <QTextDocument>
#include <QLineEdit>

FindAndReplaceBar::FindAndReplaceBar(QObject *parent) :
    QToolBar(NULL)
{
    lblFind         = new QLabel("Find: ",this);
    lblReplace      = new QLabel("Replace",this);

    ledtFind        = new QLineEdit(this);
    ledtReplace     = new QLineEdit(this);

    QPixmap next(":/res/resources/next.gif");
    QPixmap previous(":/res/resources/previous.gif");
    QPixmap close(":/res/resources/close_icon.gif");

    btnFindNext     = new QPushButton(QIcon(next),"",this);
    btnFindPrevious = new QPushButton(QIcon(previous),"",this);
    btnClose        = new QPushButton(QIcon(close),"",this);

    btnReplace      = new QPushButton("Replace",this);
    btnReplaceAll   = new QPushButton("Replace All",this);

    btnFindNext->setFlat(true);
    btnFindPrevious->setFlat(true);
    btnClose->setFlat(true);
    btnReplace->setFlat(true);
    btnReplaceAll->setFlat(true);

    lytFindAndReplaceBar        = new QGridLayout(this);

    lytFindAndReplaceBar->addWidget(lblFind,0,0,1,1);
    lytFindAndReplaceBar->addWidget(ledtFind,0,1,1,2);
    lytFindAndReplaceBar->addWidget(btnFindPrevious,0,3,1,1);
    lytFindAndReplaceBar->addWidget(btnFindNext,0,4,1,1);

    lytFindAndReplaceBar->addWidget(lblReplace,0,5,1,1);
    lytFindAndReplaceBar->addWidget(ledtReplace,0,6,1,2);
    lytFindAndReplaceBar->addWidget(btnReplace,0,8,1,1);
    lytFindAndReplaceBar->addWidget(btnReplaceAll,0,9,1,1);

    this->setLayout(lytFindAndReplaceBar);

    connect(btnFindNext,SIGNAL(clicked()),this,SIGNAL(findNext()));
    connect(btnFindPrevious,SIGNAL(pressed()),this,SIGNAL(findPrevious()));
    connect(btnClose,SIGNAL(pressed()),this,SLOT(close()));
    connect(btnReplace,SIGNAL(pressed()),this,SIGNAL(replace()));
    connect(btnReplaceAll,SIGNAL(pressed()),this,SIGNAL(replaceAll()));

    this->setStyleSheet("QToolBar{background: qlineargradient(x1:0,x2:0,y1:0,y2:1,stop:0 #fffaf0,stop:0.3 #fdf5e6)} QLineEdit{border-radius:4px;padding:2px;}");
}

void FindAndReplaceBar::findNext()
{
    emit find(0);
}

void FindAndReplaceBar::findPrevious()
{
    emit find(QTextDocument::FindBackward);
}

void FindAndReplaceBar::replace()
{
    emit replace(false);
}

void FindAndReplaceBar::replaceAll()
{
    emit replace(true);
}

QString FindAndReplaceBar::searchTerm()
{
    return this->ledtFind->text();
}

QString FindAndReplaceBar::replaceTerm()
{
    return this->ledtReplace->text();
}

void FindAndReplaceBar::setSearchFieldText(const QString & searchFieldText)
{
    this->ledtFind->setText(searchFieldText);
}

void FindAndReplaceBar::setReplaceFieldText(const QString & replaceFieldText)
{
    this->ledtReplace->setText(replaceFieldText);
}

运行程序时，我遇到了多个函数定义的问题:

When I run the program I get problems of multiple definitions of the functions:

findNext()，findPrevious()，replace()，replaceAll().

另一个定义在moc_FindAndReplaceBar.cpp文件中进行.我不确定是什么问题，所以我不知道如何解决！我真的很感谢您的帮助，谢谢！

The other definition is made in the moc_FindAndReplaceBar.cpp file.I'm not sure what the problem so I don't know how to fix it! I would really appreciate any help, thanks!

推荐答案

从您的连接调用(信号到信号)判断，假设我们查看您的头文件，则您将findNext(), findPrevious(), replace(), replaceAll()声明为信号，但是您不能实现信号-只需在标头中声明它们即可.

Judging by your connect calls (signal to signal), I assume if we look at your header file, you will have declared findNext(), findPrevious(), replace(), replaceAll() as signals, but you must not implement signals - they just need to be declared in the header.

从信号

这篇关于多个定义错误:一个在我的文件中，一个在moc文件中.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！