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自定义的弹出窗口#xff0c;窗口可以实现按下鼠标拖动#xff0c;鼠标释放停止拖动#xff0c;窗口种含有子控件#xff0c;下拉列表#xff0c;在点击下拉列表时窗口移动。
解决方法
因为点击下拉列表的时候#xff0c;触发了窗口的移动事件#xff0c;所以添…提要
自定义的弹出窗口窗口可以实现按下鼠标拖动鼠标释放停止拖动窗口种含有子控件下拉列表在点击下拉列表时窗口移动。
解决方法
因为点击下拉列表的时候触发了窗口的移动事件所以添加下拉列表的事件过滤。 下面附上实现代码
ui-comboBoxReso-installEventFilter(this);bool ResolutionDialog::eventFilter(QObject *obj, QEvent *event)
{if(obj ui-comboBoxReso){if(event-type() QEvent::MouseMove){return true;}}return QDialog::eventFilter(obj,event);
}
ui文件的结构如下 在构造函数种安装控件的事件过滤器。然后重写过滤事件。 完整的代码如下 resolutiondialog.h
#ifndef RESOLUTIONDIALOG_H
#define RESOLUTIONDIALOG_H#include QDialog
#include datastruct.h/***********类功能描述分辨率设置对话框************/
namespace Ui {
class ResolutionDialog;
}class ResolutionDialog : public QDialog
{Q_OBJECTpublic:explicit ResolutionDialog(QWidget *parent nullptr);~ResolutionDialog();//初始化void initResolutions();//初始化下拉列表的分辨率protected:bool eventFilter(QObject *obj, QEvent *event);//过滤事件,过滤掉下拉列表的点击事件void mousePressEvent(QMouseEvent *event);//鼠标点击void mouseMoveEvent(QMouseEvent *event);//鼠标移动事件void mouseReleaseEvent(QMouseEvent *event);//鼠标释放事件
signals:void sigEveryResolution(stuReso stuResolution);//发送每块屏的屏幕分辨率
public slots:void onSetRowColSlot(int row,int col);//设置SpinBox的行列信息
private slots:void on_closeBtn_clicked();//关闭按钮void on_confirmBtn_clicked();//确定按钮void on_cancelBtn_clicked();//取消按钮private:Ui::ResolutionDialog *ui;QPoint m_offPos;//鼠标点击点与窗口左上角之间的距离
};#endif // RESOLUTIONDIALOG_H
resolutiondialog.cpp
#include resolutiondialog.h
#include ui_resolutiondialog.h
#include QStyledItemDelegateResolutionDialog::ResolutionDialog(QWidget *parent) :QDialog(parent),ui(new Ui::ResolutionDialog)
{ui-setupUi(this);initResolutions();QStyledItemDelegate *delegate new QStyledItemDelegate();ui-comboBoxReso-setItemDelegate(delegate);ui-comboBoxReso-installEventFilter(this);setWindowFlag(Qt::FramelessWindowHint);setAttribute(Qt::WA_TranslucentBackground);
}ResolutionDialog::~ResolutionDialog()
{delete ui;
}void ResolutionDialog::initResolutions()
{QListQString strList;strList.append(3840x2160);strList.append(1920x1080);strList.append(1680x1050);strList.append(1600x900);strList.append(1440x900);strList.append(1366x768);strList.append(1280x1024);QStringList strResoList(strList);ui-comboBoxReso-addItems(strResoList);
}bool ResolutionDialog::eventFilter(QObject *obj, QEvent *event)
{if(obj ui-comboBoxReso){if(event-type() QEvent::MouseMove){return true;}}return QDialog::eventFilter(obj,event);
}void ResolutionDialog::mousePressEvent(QMouseEvent *event)
{if (event-button() Qt::LeftButton) {QPoint startPos event-globalPos();m_offPos startPos - geometry().topLeft();}QDialog::mousePressEvent(event);
}void ResolutionDialog::mouseMoveEvent(QMouseEvent *event)
{if (event-buttons() Qt::LeftButton) {QPoint endPos event-globalPos();move(endPos - m_offPos);}QDialog::mouseMoveEvent(event);
}void ResolutionDialog::mouseReleaseEvent(QMouseEvent *event)
{QDialog::mouseReleaseEvent(event);
}void ResolutionDialog::onSetRowColSlot(int row, int col)
{ui-spinBoxRow-setRange(0,row-1);ui-spinBoxCol-setRange(0,col-1);
}void ResolutionDialog::on_closeBtn_clicked()
{close();
}void ResolutionDialog::on_confirmBtn_clicked()
{stuReso tempReso;tempReso.row ui-spinBoxRow-value();tempReso.col ui-spinBoxCol-value();QString strTemp ui-comboBoxReso-currentText();QStringList strList strTemp.split(x);QString strW strList.first();QString strH strList.last();tempReso.width strW.toInt();tempReso.height strH.toInt();emit sigEveryResolution(tempReso);accept();
}void ResolutionDialog::on_cancelBtn_clicked()
{reject();
}
上面只将这个出现上述问题的类的代码附上。因为其中涉及到项目中的一些需求实现读者可以选择性读取理解我说明的问题解决思路便好代码可以参考。由于涉及到qss文件设置样式那部分没有贴出来读者可以注释掉背景透明和无边框的设置。
