virtual void mouseDoubleClickEvent(QMouseEvent *event) 当鼠标在窗口范围内双击,将会产生mouseDoubleClickEvent事件;如果需要接收鼠标双击事件,可以在子类中重载mouseDoubleClickEvent函数。 3. 鼠标释放事件 [virtual protected] void QWidget::mouseReleaseEvent(QMouseEvent *event) 当鼠标在窗口范围内按下后释放,将会...
bool myLabel::event(QEvent *e){//如果是鼠标按下 在event事件分发中做拦截操作if(e->type() == QEvent::MouseButtonPress){QMouseEvent * ev = static_cast<QMouseEvent *>(e);QString str = QString("Event函数中:鼠标按下了 x=%1 y=%2 globalX = %3 globalY = %4").arg(ev->x())...
我们先获取当前坐标,通过event->x(),event->y获得; 接着需要判断坐标是否在棋盘范围内:x >= startX && x <= startX+8*gridX && y >= startY && y <= startX+8*gridY; 接着算出x和y的坐标:chessX = (x - startX) / gridX; chessY = (y - startY) / gridY; 然后进行绘制:p.drawPixmap...
主要代码: #include "radargpu.h"#include <QPainter>#include <QtMath>#include <QMouseEvent>RadarGpu::RadarGpu(QWidget *parent): QOpenGLWidget(parent){QSurfaceFormat format = QSurfaceFormat::defaultFormat();format.setSamples(6);setFormat(format);connect(&timer_, SIGNAL(timeout()), this, SL...
}voidmouseReleaseEvent(QMouseEvent *event)override{if(event->button() == Qt::LeftButton) { m_dragging =false; } } signals:voidbtnMoving();private:boolm_dragging; QPoint m_startPosition; };#endif// MAINWINDOW_H mainwindow.cpp #include"mainwindow.h"#include"ui_mainwindow.h"#include"QPu...
x(), ui->horizontalSlider_volume->width()); ui->horizontalSlider_volume->setValue(value); //设置音量 if(vlc_mediaPlayer)libvlc_audio_set_volume(vlc_mediaPlayer,value); } } } return QWidget::eventFilter(obj, event); } /* 工程: QtVLC_Player 日期: 2021-03-24 作者: DS小龙哥环境: ...
⚡ 使用QuickEvent设计复杂功能可以让开发者,更加专注与自己模块或功能点的开发 💉 利用QT的元对象属性,实现控制类的自动实例化 🔨 高内聚,低耦合,不仅让协同开发变得简单,也让重构变的非常轻松; 🐋 生产级别代码clone即用,提供参考Demo ⚙️️ 跨平台 ...
void EventLabel::mouseMoveEvent(QMouseEvent *event) { this->setText(QString("Move: (%1, %2) ").arg(QString::number(event->x()), QString::number(event->y())); } void EventLabel::mousePressEvent(QMouseEvent *event) { this->setText(QString("Press...
is a fun event where people of various ages can see and experience the work of toy artists from around the world, the video also tried to express the purpose of the event through its vivid color tones and dynamic movement of the camera, cheerful rhythm, and cute movements of QQ characters...
没错,QT中在一个窗体中进行绘图就是这么简单。接下来让我们更进一步,将矩形数据(x,y,w,h)提升到到类成员变量层级,并让painter绘制矩形的时候读取类成员变量: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 classDemoWidget:publicQWidget{public:voidpaintEvent(QPaintEvent*event)override{QPainterpainter(this...