选择按钮

#include "switchbutton.h"

#include <QTimer>

#include <QPainter>

#include <QDebug>

#include <QPaintEvent>

#include <QBitmap>

#include <QPixmap>

SwitchButton::SwitchButton(QWidget *parent) :

    QPushButton(parent),state(false),_pos(0),isReady(true)

{

    closeTimer = new QTimer(this);

    connect(closeTimer,SIGNAL(timeout()),this,SLOT(closeAnimation()));

    openTimer = new QTimer(this);

    connect(openTimer,SIGNAL(timeout()),this,SLOT(openAnimation()));

    onPixmap = new QPixmap(":/image/on-slide1.png");

    offPixmap = new QPixmap(":/image/off-slide1.png");

    on_offPixmap = new QPixmap(":/image/on-off-slide1.png");

    resize(onPixmap->size());

    this->shortcut();

}

bool SwitchButton::getState()

{

    return state;

}

void SwitchButton::setState(bool _state)

{

    state = _state;

    emit stateChange(state);

    if(state)

    {

        if(_pos < 0)

            _pos = 0;

        openTimer->start(10);

        closeTimer->stop();

    }

    else

    {

        openTimer->stop();

        closeTimer->start(10);

    }

    isReady = false;

}

void SwitchButton::setStateWithoutAnimation(bool _state)

{

    state = _state;

    emit stateChange(state);

    if(state)

    {

        //_pos = buttonSize.width() - on_offPixmap->width();

        _pos = 97 - on_offPixmap->width();

    }

    else

    {

        _pos = 0;

    }

    update();

}

void SwitchButton::mousePressEvent(QMouseEvent *e)

{

    changeState();

    QPushButton::mousePressEvent(e);

}

void SwitchButton::paintEvent(QPaintEvent *e)

{

    buttonSize = this->size();

    QPainter painter(this);

    //painter.drawPixmap(0,0,100,100,QPixmap("://ui/11.png"));

    painter.setRenderHint(QPainter::Antialiasing);

    painter.setPen(Qt::NoPen);

    int _width = buttonSize.width();

    int _height = buttonSize.height();

    if(_pos < 0)

    {

        if(state)

            _pos = 97 - on_offPixmap->width();

        else

            _pos = 0;

    }

    double _scale = double(_pos+3) / double(_width);

    painter.drawPixmap(0,0,_width,_height,*offPixmap);

    painter.drawPixmap(QRect(0,0,_pos+3,_height),onPixmap->copy(0,0,_scale * onPixmap->width(),onPixmap->height()));

    painter.drawPixmap(_pos,0,_height * 56.0/30.0,_height,*on_offPixmap);

}

void SwitchButton::setButtonSize(int w, int h)

{

    buttonSize.setWidth(w);

    buttonSize.setHeight(h);

    buttonSize = this->size();

    update();

}

void SwitchButton::changeState()

{

    if(state == true)

    {

        //        openTimer->stop();

        //        closeTimer->start(10);

        //        state = 0;

        setState(false);

    }

    else

    {

        //        openTimer->start(10);

        //        closeTimer->stop();

        //        state = 1;

        setState(true);

    }

    isReady = false;

}

void SwitchButton::closeAnimation()

{

    _pos -= 3;

    if(_pos <= 0)

    {

        _pos = 0;

        closeTimer->stop();

        isReady = true;

        repaint();

        return;

    }

    update();

}

void SwitchButton::openAnimation()

{

    _pos += 3;

    if(_pos < 0)

        _pos = 0;

    if(_pos >= buttonSize.width() - on_offPixmap->width())

    {

        _pos = buttonSize.width() - on_offPixmap->width();

        openTimer->stop();

        isReady = true;

        repaint();

        return;

    }

    update();

}