mirror of
https://gitee.com/drabel/LibQQt.git
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300 lines
8.3 KiB
C++
300 lines
8.3 KiB
C++
/******************************************************************
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Copyright (C) 2017 - All Rights Reserved by
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文 件 名 : mainwidget.cpp ---
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作 者 : 倪又华
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编写日期 : 2017
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说 明 :
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历史纪录 :
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<作者> <日期> <版本> <内容>
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Niyh 2017/7
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*******************************************************************/
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#include "mainwidget.h"
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#include "QZXing.h"
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#include <QPainter>
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#include <QDebug>
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#include <QMouseEvent>
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#include <QTimerEvent>
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#include <QShowEvent>
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#include <QApplication>
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#include <QScreen>
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#include <QUrl>
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#include <QDesktopWidget>
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#include <QDesktopServices>
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#include <QCursor>
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#include <QClipboard>
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#include <QMetaMethod>
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#include <QToolTip>
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#include <QFontMetrics>
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QQtCustomQrDecodeWidget::QQtCustomQrDecodeWidget ( QWidget* parent )
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: QWidget ( parent ), m_bScaned ( false )
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{
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this->resize ( 300, 300 );
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setWindowOpacity ( 1 );
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setWindowFlags ( /*this->windowFlags() |*/ Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint );
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// 设置透明
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setAttribute ( Qt::WA_TranslucentBackground );
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m_nY = 20;
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m_nTimerId = -1;
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m_strScanResult = "Hello World!";
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m_startPoint = QPoint();
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m_nDirection = DOWN;
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QMenu* resizeMenu = new QMenu ( this );
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resizeMenu->setTitle ( "重置大小" );
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resizeMenu->addAction ( tr ( "200*200" ) );
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resizeMenu->addAction ( tr ( "300*300" ) );
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resizeMenu->addAction ( tr ( "400*400" ) );
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mainMenu = new QMenu ( this );
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mainMenu->addMenu ( resizeMenu );
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mainMenu->addSeparator();
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mainMenu->addAction ( tr ( "重新扫描" ) );
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mainMenu->addAction ( tr ( "打开链接" ) );
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mainMenu->addAction ( tr ( "复制结果到粘贴板" ) );
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mainMenu->addSeparator();
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mainMenu->addAction ( tr ( "退出" ) );
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connect ( resizeMenu, SIGNAL ( triggered ( QAction* ) ), this, SLOT ( SltActionTriggered ( QAction* ) ) );
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connect ( mainMenu, SIGNAL ( triggered ( QAction* ) ), this, SLOT ( SltActionTriggered ( QAction* ) ) );
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this->setCursor ( Qt::PointingHandCursor );
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// 启动定时器
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m_nTimerId = startTimer ( 15 );
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}
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QQtCustomQrDecodeWidget::~QQtCustomQrDecodeWidget()
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{
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// 启动定时器
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if ( -1 == m_nTimerId )
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{
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m_nTimerId = startTimer ( 15 );
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}
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delete mainMenu;
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mainMenu = NULL;
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}
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// -------------------------处理鼠标点击移动-----------------------------//
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void QQtCustomQrDecodeWidget::mousePressEvent ( QMouseEvent* e )
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{
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if ( e->button() == Qt::RightButton )
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{
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mainMenu->popup ( QCursor::pos() );
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}
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else
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{
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m_startPoint = e->pos();
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}
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}
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void QQtCustomQrDecodeWidget::mouseMoveEvent ( QMouseEvent* e )
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{
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if ( m_startPoint.isNull() )
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return;
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if ( ( e->pos() - m_startPoint ).manhattanLength() > 0 )
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{
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QPoint p = pos() + e->pos() - m_startPoint;
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move ( p );
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}
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}
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void QQtCustomQrDecodeWidget::mouseReleaseEvent ( QMouseEvent* )
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{
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m_startPoint = QPoint();
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}
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/**
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* @brief MainWidget::paintEvent
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* @param e
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*/
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void QQtCustomQrDecodeWidget::paintEvent ( QPaintEvent* )
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{
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QPainter painter ( this );
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painter.setRenderHint ( QPainter::Antialiasing );
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// 扫描完成
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if ( m_bScaned )
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{
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painter.setPen ( Qt::red );
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painter.drawRoundRect ( this->rect(), 2, 2 );
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QRect rect = this->rect();
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rect.setX ( this->rect().x() + 1 );
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rect.setY ( this->rect().y() + 1 );
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rect.setWidth ( this->width() - 2 );
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rect.setHeight ( this->height() - 2 );
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painter.fillRect ( rect, Qt::white );
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painter.setPen ( QPen ( Qt::black, 2 ) );
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painter.setFont ( QFont ( "微软雅黑", 14 ) );
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painter.drawText ( 0, 0, this->width(), 50, Qt::AlignCenter, tr ( "扫描结果：" ) );
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QTextOption option;
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option.setWrapMode ( QTextOption::WordWrap );
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QFont font ( "微软雅黑", 12 );
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painter.setFont ( font );
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painter.setBrush ( Qt::yellow );
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painter.drawText ( QRect ( 5, 50, this->width() - 10, this->height() - 50 ), m_strScanResult, option );
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}
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else
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{
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painter.fillRect ( this->rect(), Qt::transparent );
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int nWidth = qMin ( this->width(), this->height() );
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nWidth -= 20;
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painter.setPen ( QPen ( Qt::white, 2 ) );
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painter.drawRect ( 10, 10, nWidth, nWidth );
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// 绘制4个角
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painter.setPen ( QPen ( Qt::red, 4 ) );
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painter.drawLine ( 10, 10, nWidth / 10 + 10, 10 );
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painter.drawLine ( 10 + nWidth - nWidth / 10, 10, 10 + nWidth, 10 );
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painter.drawLine ( 10, 10 + nWidth, nWidth / 10 + 10, 10 + nWidth );
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painter.drawLine ( 10 + nWidth - nWidth / 10, 10 + nWidth, 10 + nWidth, 10 + nWidth );
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// 底部横线
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painter.drawLine ( 10, 10, 10, 10 + nWidth / 10 );
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painter.drawLine ( 10, 10 + nWidth - nWidth / 10, 10, 10 + nWidth );
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painter.drawLine ( 10 + nWidth, 10, 10 + nWidth, 10 + nWidth / 10 );
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painter.drawLine ( 10 + nWidth, 10 + nWidth - nWidth / 10, 10 + nWidth, 10 + nWidth );
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// 绘制横向动态的那个线
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painter.drawLine ( 40, m_nY, nWidth - 20, m_nY );
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}
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}
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/**
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* @brief MainWidget::timerEvent
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* @param event
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*/
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void QQtCustomQrDecodeWidget::timerEvent ( QTimerEvent* event )
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{
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if ( event->timerId() == m_nTimerId )
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{
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if ( m_nY >= ( this->height() - 20 ) )
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{
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m_nDirection = UP;
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ScanRecord();
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}
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else if ( m_nY <= 20 )
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{
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m_nDirection = DOWN;
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ScanRecord();
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}
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if ( DOWN == m_nDirection )
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{
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m_nY += 2;
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}
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else
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{
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m_nY -= 2;
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}
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update();
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}
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}
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// 菜单响应
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void QQtCustomQrDecodeWidget::SltActionTriggered ( QAction* action )
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{
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// 退出
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if ( !QString::compare ( "退出", action->text() ) )
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{
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if ( -1 != m_nTimerId )
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{
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killTimer ( m_nTimerId );
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}
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qApp->quit();
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}
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else if ( !QString::compare ( "重新扫描", action->text() ) )
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{
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m_nY = 20;
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m_strScanResult = "Hello World!";
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m_startPoint = QPoint();
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m_nDirection = DOWN;
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m_bScaned = false;
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// setAttribute(Qt::WA_TranslucentBackground, true);
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// 启动定时器
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if ( -1 == m_nTimerId )
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{
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m_nTimerId = startTimer ( 15 );
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}
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}
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else if ( !QString::compare ( "打开链接", action->text() ) )
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{
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QDesktopServices::openUrl ( QUrl ( m_strScanResult ) );
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}
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else if ( !QString::compare ( "复制结果到粘贴板", action->text() ) )
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{
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// 复制到粘贴板
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if ( !m_strScanResult.isEmpty() )
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{
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QApplication::clipboard()->setText ( m_strScanResult );
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}
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// 如果未选取要复制的内容进行提示
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else
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{
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QToolTip::showText ( QCursor::pos(), tr ( "未扫描到任何数据!" ), this );
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}
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}
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else if ( !QString::compare ( "200*200", action->text() ) )
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{
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this->resize ( QSize ( 200, 200 ) );
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}
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else if ( !QString::compare ( "300*300", action->text() ) )
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{
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this->resize ( QSize ( 300, 300 ) );
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}
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else if ( !QString::compare ( "400*400", action->text() ) )
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{
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this->resize ( QSize ( 400, 400 ) );
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}
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}
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/**
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* @brief MainWidget::ScanRecord
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* 扫描图片
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*/
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void QQtCustomQrDecodeWidget::ScanRecord()
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{
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QScreen* screen ;//= QGuiApplication::primaryScreen();
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int nWidth = qMin ( this->width(), this->height() );
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nWidth -= 20;
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QPixmap pixmap ;//= screen->grabWindow ( 0, this->pos().x() + 10, this->pos().y() + 10, nWidth, nWidth );
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// 解析二维码
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QZXing decoder ( QZXing::DecoderFormat_QR_CODE );
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m_strScanResult = decoder.decodeImage ( pixmap.toImage() );
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qDebug() << m_strScanResult;
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// 解析结果为空直接返回
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if ( m_strScanResult.isEmpty() )
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return;
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// 显示扫描结果
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// setAttribute(Qt::WA_TranslucentBackground, false);
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m_bScaned = true;
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killTimer ( m_nTimerId );
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m_nTimerId = -1;
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}
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