qt gif录制工具

QQ:609162385
承接各种软件，插件，控件制作，程序代写，毕业设计，图像处理等。

#pragma execution_character_set("utf-8")
/*!
  @author  chen
  @date    2018/9
  @brief   QQ:609162385
  @brief   Tell:15826091035
  @https     https://blog.csdn.net/cqltbe131421
  @verbatim
          <author>    <time>   <version>  <desc>
         chen 2018/9   0.1.0     build this module
  @endverbatim
*/
#include "recordwidget.h"
#include "ui_recordwidget.h"
#include <QDateTime>
#include <QApplication>
#include <QMouseEvent>
#include <QPainter>
#include <QDebug>
#include <QStyle>
#include <QApplication>
#include <QDesktopWidget>
#include <QDesktopServices>
#include <QScreen>

RecordWidget::RecordWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::RecordWidget)
{
    ui->setupUi(this);
    setMouseTracking(true);
    isLeftPressDown = false;
    movie =  new QMovie(this);
    ui->label_gif->setMovie(movie);
    dir = NONE;
    this->setAttribute(Qt::WA_TranslucentBackground);
    this->setAttribute(Qt::WA_DeleteOnClose);
    this->setWindowFlags(this->windowFlags() | Qt::FramelessWindowHint );
    m_screen = QApplication::primaryScreen();
    connect(&timer, SIGNAL(timeout()), this, SLOT(SaveImage()));
    connect(&countdowntimer, SIGNAL(timeout()), this, SLOT(countdowntimerSlot()));

}

RecordWidget::~RecordWidget()
{
    if (nullptr != m_gifWriter)
    {
        delete m_gifWriter;
        m_gifWriter = nullptr;
    }
    delete ui;
}

void RecordWidget::on_btn_play_clicked()
{
    movie->stop();
    ui->label_gif->hide();

    ui->label_gif->show();
    QString  fileName = QFileDialog::getOpenFileName(this,
                                                     tr("Open Image"), "/home/jana", tr("Image Files (*.gif)"));
    movie->setFileName(fileName);
    movie->start();
}

void RecordWidget::on_btnRecord_clicked()
{
    movie->stop();
    ui->label_gif->hide();
    countdowntimer.start(1000);
}

void RecordWidget::on_btnStop_clicked()
{
    movie->stop();
    ui->label_gif->hide();
    recordnum = 0;
    countdownnum = 3;
    if (!m_gifWriter) return;
    timer.stop();
    m_Gif.GifEnd(m_gifWriter);
    delete m_gifWriter;
    m_gifWriter = nullptr;
    ui->labelStatus->setText("录制完成：" + m_strFileName);
    ui->label_gif->show();
    movie->setFileName(m_strFileName);
    movie->start();
}

void RecordWidget::on_btnClose_clicked()
{
    movie->stop();
    ui->label_gif->hide();
    qApp->quit();
}

void RecordWidget::on_btnSave_clicked()
{
    movie->stop();
    ui->label_gif->hide();
    QString str = "";
    QString saveFileName =  QFileDialog::getSaveFileName(this,"保存文件","dirString","*.gif",&str,
                                                         QFileDialog::ShowDirsOnly | QFileDialog::DontResolveSymlinks);
    qDebug()<<"sss"<<saveFileName;
    QFile file(saveFileName);
    bool copy_error =  file.copy( "temp.gif",saveFileName );
}
/**
 * @brief RecordWidget::SaveImage
 * 保存图像
 */

void RecordWidget::SaveImage()
{
    ui->labelStatus->setText(QString("开始录制...%1").arg(recordnum++));
    if (!m_gifWriter) return;
    QPixmap  pix = m_screen->grabWindow(0, this->x() + m_rectRecord.x(),
                                        this->y() + m_rectRecord.y(),
                                        m_rectRecord.width(), m_rectRecord.height());
    QImage image = pix.toImage().convertToFormat(QImage::Format_RGBA8888);;
    m_Gif.GifWriteFrame(m_gifWriter, image.bits(), m_rectRecord.width(), m_rectRecord.height(), m_Fps);
}

void RecordWidget::paintEvent(QPaintEvent *)
{
    QPainter painter(this);
    painter.fillRect(this->rect(), QColor("#2F4F4F"));
    int nW = ui->lineEditWidth->text().toInt();
    int nH = ui->lineEditHeight->text().toInt();

    painter.setCompositionMode( QPainter::CompositionMode_Clear );
    m_rectRecord = QRect(2, 32, nW, nH);
    painter.fillRect(m_rectRecord, Qt::Dense7Pattern );
}

void RecordWidget::mouseMoveEvent(QMouseEvent *e)
{
    QPoint gloPoint = e->globalPos();
    QRect rect = this->rect();
    QPoint tl = mapToGlobal(rect.topLeft());
    QPoint rb = mapToGlobal(rect.bottomRight());

    if(!isLeftPressDown) {
        this->region(gloPoint);
    } else {

        if(dir != NONE) {
            QRect rMove(tl, rb);

            switch(dir) {
            case LEFT:
                if(rb.x() - gloPoint.x() <= this->minimumWidth())
                    rMove.setX(tl.x());
                else
                    rMove.setX(gloPoint.x());
                break;
            case RIGHT:
                rMove.setWidth(gloPoint.x() - tl.x());
                break;
            case UP:
                if(rb.y() - gloPoint.y() <= this->minimumHeight())
                    rMove.setY(tl.y());
                else
                    rMove.setY(gloPoint.y());
                break;
            case DOWN:
                rMove.setHeight(gloPoint.y() - tl.y());
                break;
            case LEFTTOP:
                if(rb.x() - gloPoint.x() <= this->minimumWidth())
                    rMove.setX(tl.x());
                else
                    rMove.setX(gloPoint.x());
                if(rb.y() - gloPoint.y() <= this->minimumHeight())
                    rMove.setY(tl.y());
                else
                    rMove.setY(gloPoint.y());
                break;
            case RIGHTTOP:
                rMove.setWidth(gloPoint.x() - tl.x());
                rMove.setY(gloPoint.y());
                break;
            case LEFTBOTTOM:
                rMove.setX(gloPoint.x());
                rMove.setHeight(gloPoint.y() - tl.y());
                break;
            case RIGHTBOTTOM:
                rMove.setWidth(gloPoint.x() - tl.x());
                rMove.setHeight(gloPoint.y() - tl.y());
                break;
            default:
                break;
            }
            this->setGeometry(rMove);
        } else {
            move(e->globalPos() - dragPosition);
            e->accept();
        }
    }
}

void RecordWidget::mousePressEvent(QMouseEvent *e)
{
    switch(e->button()) {
    case Qt::LeftButton:
        isLeftPressDown = true;
        if(dir != NONE) {
            this->mouseGrabber();
        } else {
            dragPosition = e->globalPos() - this->frameGeometry().topLeft();
        }
        break;
    case Qt::RightButton:
        this->close();
        break;
    default:
        mousePressEvent(e);
    }
    if (e->button() == Qt::LeftButton) {
        m_mousePressed = true;
        mousePoint = e->globalPos() - this->pos();
        e->accept();
    }
}

void RecordWidget::mouseReleaseEvent(QMouseEvent *event)
{
    if(event->button() == Qt::LeftButton) {
        isLeftPressDown = false;
        if(dir != NONE) {
            this->releaseMouse();
            this->setCursor(QCursor(Qt::ArrowCursor));
        }
    }
    m_mousePressed = false;
}

void RecordWidget::region(const QPoint &cursorGlobalPoint)
{
    // 获取窗体在屏幕上的位置区域，tl为topleft点，rb为rightbottom点
    QRect rect = this->rect();
    QPoint tl = mapToGlobal(rect.topLeft());
    QPoint rb = mapToGlobal(rect.bottomRight());

    int x = cursorGlobalPoint.x();
    int y = cursorGlobalPoint.y();

    if(tl.x() + PADDING >= x && tl.x() <= x && tl.y() + PADDING >= y && tl.y() <= y) {
        // 左上角
        dir = LEFTTOP;
        this->setCursor(QCursor(Qt::SizeFDiagCursor));  // 设置鼠标形状
    } else if(x >= rb.x() - PADDING && x <= rb.x() && y >= rb.y() - PADDING && y <= rb.y()) {
        // 右下角
        dir = RIGHTBOTTOM;
        this->setCursor(QCursor(Qt::SizeFDiagCursor));
    } else if(x <= tl.x() + PADDING && x >= tl.x() && y >= rb.y() - PADDING && y <= rb.y()) {
        //左下角
        dir = LEFTBOTTOM;
        this->setCursor(QCursor(Qt::SizeBDiagCursor));
    } else if(x <= rb.x() && x >= rb.x() - PADDING && y >= tl.y() && y <= tl.y() + PADDING) {
        // 右上角
        dir = RIGHTTOP;
        this->setCursor(QCursor(Qt::SizeBDiagCursor));
    } else if(x <= tl.x() + PADDING && x >= tl.x()) {
        // 左边
        dir = LEFT;
        this->setCursor(QCursor(Qt::SizeHorCursor));
    } else if( x <= rb.x() && x >= rb.x() - PADDING) {
        // 右边
        dir = RIGHT;
        this->setCursor(QCursor(Qt::SizeHorCursor));
    }else if(y >= tl.y() && y <= tl.y() + PADDING){
        // 上边
        dir = UP;
        this->setCursor(QCursor(Qt::SizeVerCursor));
    } else if(y <= rb.y() && y >= rb.y() - PADDING) {
        // 下边
        dir = DOWN;
        this->setCursor(QCursor(Qt::SizeVerCursor));
    }else {
        // 默认
        dir = NONE;
        this->setCursor(QCursor(Qt::ArrowCursor));
    }
}

/**
 * @brief RecordWidget::on_lineEditWidth_editingFinished
 */

void RecordWidget::on_lineEditWidth_editingFinished()
{
    int nW = ui->lineEditWidth->text().toInt();
    int nH = ui->lineEditHeight->text().toInt();
    this->resize(nW + 4, nH + 78);
}

/**
 * @brief RecordWidget::on_lineEditHeight_editingFinished
 * 修改录制框的高度
 */

void RecordWidget::on_lineEditHeight_editingFinished()
{
    int nW = ui->lineEditWidth->text().toInt();
    int nH = ui->lineEditHeight->text().toInt();
    this->resize(nW + 4, nH + 78);
}

void RecordWidget::countdowntimerSlot()
{
    ui->labelStatus->setText(QString("倒计时 %1...").arg(countdownnum));
    countdownnum--;
    if(countdownnum == -1){
        countdowntimer.stop();
        m_Fps = ui->lineEditFps->text().toInt();
        m_strFileName = "temp.gif";
        if (nullptr != m_gifWriter)
        {
            delete m_gifWriter;
            m_gifWriter = nullptr;
        }
        int nW = ui->lineEditWidth->text().toInt();
        int nH = ui->lineEditHeight->text().toInt();
        m_gifWriter = new Gif_H::GifWriter;
        bool bOk = m_Gif.GifBegin(m_gifWriter, m_strFileName.toLocal8Bit().data(), nW, nH, m_Fps);
        if (!bOk)
        {
            delete m_gifWriter;
            m_gifWriter = nullptr;
            return;
        }
        SaveImage();
        timer.start(m_Fps * 10);
    }
}

void RecordWidget::resizeEvent(QResizeEvent *)
{
    int nW = this->width() -4 ;
    int nH = this->height() - 78;
    ui->lineEditWidth->setText(QString::number(nW));
    ui->lineEditHeight->setText(QString::number(nH));
    ui->groupBox_2->setGeometry(2,this->height() - 46,this->width(),44);
    ui->widgetTop->setGeometry(2,4,this->width(),20);
    ui->label_gif->setGeometry(2,24,this->width() - 8,this->height() - 70);
}