[Qt] CFlip 翻页功能实现

来源：互联网发布：喀秋莎视频编辑软件编辑：程序博客网时间：2024/04/28 23:44

由于需要给table制作翻页功能，所以写了一个翻页的类。
看上去总体效果感觉还是不错的，哈哈。

//flip.h

#ifndef CFLIP_H#define CFLIP_H#include <QWidget>#include <QPushButton>#include <QLabel>#include <QComboBox>#include <QEvent>class CFlip : public QWidget{    Q_OBJECTpublic:    CFlip(QWidget *parent = 0);    ~CFlip();    int m_iSetPageInfo(int iAllPageNum, int iCurPageNo);signals:    void sigPageChanged(int iPageNo);public slots:    void slot_GotoPrePageBtn_clicked();    void slot_FirstPageBtn_clicked();    void slot_PrePageBtn_clicked();    void slot_CurPageBtn_clicked();    void slot_NextPageBtn_clicked();    void slot_LastPageBtn_clicked();    void slot_GotoNextPageBtn_clicked();protected:    bool eventFilter(QObject *obj, QEvent *event);private:    QPushButton *m_oGotoPrePageBtn;    QPushButton *m_oFirstPageBtn;    QPushButton *m_oPrePageBtn;    QPushButton *m_oCurPageBtn;    QPushButton *m_oNextPageBtn;    QPushButton *m_oLastPageBtn;    QPushButton *m_oGotoNextPageBtn;    int m_iAllPageNum;    int m_iCurPageNo;};#endif // CFLIP_H

//flip.cpp

#include "flip.h"#include <QHBoxLayout>CFlip::CFlip(QWidget *parent)    : QWidget(parent){    m_iAllPageNum = 1;    m_iCurPageNo = 1;    m_oGotoPrePageBtn = new QPushButton(this);    m_oFirstPageBtn = new QPushButton(this);    m_oPrePageBtn = new QPushButton(this);    m_oCurPageBtn = new QPushButton(this);    m_oNextPageBtn = new QPushButton(this);    m_oLastPageBtn = new QPushButton(this);    m_oGotoNextPageBtn = new QPushButton(this);    m_oGotoPrePageBtn->setMinimumSize(56, 23);    m_oFirstPageBtn->setMinimumSize(33, 23);    m_oPrePageBtn->setMinimumSize(23, 23);    m_oCurPageBtn->setMinimumSize(23, 23);    m_oNextPageBtn->setMinimumSize(23, 23);    m_oLastPageBtn->setMinimumSize(33, 23);    m_oGotoNextPageBtn->setMinimumSize(56, 23);    m_oGotoPrePageBtn->setMaximumSize(56, 23);    m_oFirstPageBtn->setMaximumSize(33, 23);    m_oPrePageBtn->setMaximumSize(23, 23);    m_oCurPageBtn->setMaximumSize(23, 23);    m_oNextPageBtn->setMaximumSize(23, 23);    m_oLastPageBtn->setMaximumSize(33, 23);    m_oGotoNextPageBtn->setMaximumSize(56, 23);    m_oGotoPrePageBtn->setText(tr("Prev"));    m_oFirstPageBtn->setText(tr("1..."));    m_oPrePageBtn->setText(tr("1"));    m_oCurPageBtn->setText(tr("1"));    m_oNextPageBtn->setText(tr("1"));    m_oLastPageBtn->setText(tr("...1"));    m_oGotoNextPageBtn->setText(tr("Next"));    QHBoxLayout *pHLayout = new QHBoxLayout();    pHLayout->setContentsMargins(1, 1, 1, 1);    pHLayout->addStretch();    pHLayout->addWidget(m_oGotoPrePageBtn);    pHLayout->addWidget(m_oFirstPageBtn);    pHLayout->addWidget(m_oPrePageBtn);    pHLayout->addWidget(m_oCurPageBtn);    pHLayout->addWidget(m_oNextPageBtn);    pHLayout->addWidget(m_oLastPageBtn);    pHLayout->addWidget(m_oGotoNextPageBtn);    this->setLayout(pHLayout);    this->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);    this->setMaximumSize(295, 23);    m_oFirstPageBtn->setHidden(true);    m_oPrePageBtn->setHidden(true);    m_oNextPageBtn->setHidden(true);    m_oLastPageBtn->setHidden(true);    this->setStyleSheet(        "QPushButton{border:1px solid #D7E2EE; border-radius:4px; background:#F5F5F5; color:#000; margin:1px;}"        "QPushButton:hover{border:1px solid #C5D3E3}"        );    m_oCurPageBtn->setStyleSheet("background: #006699;");    m_oGotoPrePageBtn->installEventFilter(this);    m_oFirstPageBtn->installEventFilter(this);    m_oPrePageBtn->installEventFilter(this);    m_oCurPageBtn->installEventFilter(this);    m_oNextPageBtn->installEventFilter(this);    m_oLastPageBtn->installEventFilter(this);    m_oGotoNextPageBtn->installEventFilter(this);    connect(m_oGotoPrePageBtn, SIGNAL(clicked()), this, SLOT(slot_GotoPrePageBtn_clicked()));    connect(m_oFirstPageBtn, SIGNAL(clicked()), this, SLOT(slot_FirstPageBtn_clicked()));    connect(m_oPrePageBtn, SIGNAL(clicked()), this, SLOT(slot_PrePageBtn_clicked()));    connect(m_oCurPageBtn, SIGNAL(clicked()), this, SLOT(slot_CurPageBtn_clicked()));    connect(m_oNextPageBtn, SIGNAL(clicked()), this, SLOT(slot_NextPageBtn_clicked()));    connect(m_oLastPageBtn, SIGNAL(clicked()), this, SLOT(slot_LastPageBtn_clicked()));    connect(m_oGotoNextPageBtn, SIGNAL(clicked()), this, SLOT(slot_GotoNextPageBtn_clicked()));}CFlip::~CFlip(){}int CFlip::m_iSetPageInfo(int iAllPageNum, int iCurPageNo){    if(iAllPageNum <= 0 || iCurPageNo <= 0 || iAllPageNum<iCurPageNo)    {        return -1;    }    m_iAllPageNum = iAllPageNum;    m_iCurPageNo = iCurPageNo;    m_oGotoPrePageBtn->setHidden(false);    m_oFirstPageBtn->setHidden(false);    m_oPrePageBtn->setHidden(false);    m_oCurPageBtn->setHidden(false);    m_oNextPageBtn->setHidden(false);    m_oLastPageBtn->setHidden(false);    m_oGotoNextPageBtn->setHidden(false);    m_oCurPageBtn->setText(QString::number(iCurPageNo, 10));    if(iCurPageNo==1)    {        m_oFirstPageBtn->setHidden(true);        m_oPrePageBtn->setHidden(true);    }    else if(iCurPageNo==2)    {        m_oFirstPageBtn->setHidden(true);        m_oPrePageBtn->setText(tr("1"));    }    else    {        m_oFirstPageBtn->setText(tr("1..."));        m_oPrePageBtn->setText(QString::number(iCurPageNo-1, 10));    }    if(iCurPageNo == iAllPageNum)    {        m_oNextPageBtn->setHidden(true);        m_oLastPageBtn->setHidden(true);    }    else if(iCurPageNo+1 == iAllPageNum)    {        m_oLastPageBtn->setHidden(true);        m_oNextPageBtn->setText(QString::number(iCurPageNo+1, 10));    }    else    {        m_oNextPageBtn->setText(QString::number(iCurPageNo+1, 10));        m_oLastPageBtn->setText(tr("...")+QString::number(m_iAllPageNum, 10));    }    return 0;}voidCFlip::slot_GotoPrePageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, m_iCurPageNo-1) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}voidCFlip::slot_FirstPageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, 1) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}voidCFlip::slot_PrePageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, m_iCurPageNo-1) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}voidCFlip::slot_CurPageBtn_clicked(){    return;}voidCFlip::slot_NextPageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, m_iCurPageNo+1) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}voidCFlip::slot_LastPageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, m_iAllPageNum) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}voidCFlip::slot_GotoNextPageBtn_clicked(){    if(m_iSetPageInfo(m_iAllPageNum, m_iCurPageNo+1) == 0)    {        emit sigPageChanged(m_iCurPageNo);    }}boolCFlip::eventFilter(QObject *obj, QEvent *event){    QPushButton *pBtn = qobject_cast<QPushButton*>(obj);    if( (m_oGotoPrePageBtn == pBtn) ||        (m_oFirstPageBtn == pBtn) ||        (m_oPrePageBtn == pBtn) ||        (m_oCurPageBtn == pBtn) ||        (m_oNextPageBtn == pBtn) ||        (m_oLastPageBtn == pBtn) ||        (m_oGotoNextPageBtn == pBtn) )    {        if(event->type() == QEvent::Enter)        {            setCursor(Qt::PointingHandCursor);        }    }    return QObject::eventFilter(obj, event);}

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