Qt自定义可拖拽交换位置的控件

#include "widget.h" #include "ui_widget.h" #include <QDebug> Widget::Widget(QWidget *parent) : QWidget(parent) , ui(new Ui::Widget) { ui->setupUi(this); for(int i=0;i<8;i++){ cd[i] = new Card(this); cd[i]->txt=QString::number(i+1); connect(cd[i],&Card::sendSelf,this,&Widget::getObject); connect(cd[i],&Card::sendNeedChange,this,&Widget::needChange); connect(this,&Widget::sendPos,cd[i],&Card::getPos); cd[i]->move(i%4*200,i/4*400); } } Widget::~Widget() { delete ui; } void Widget::getObject(Card *w) { temp = w; disconnect(this,&Widget::sendPos,w,&Card::getPos); startP = cursor().pos()-this->pos(); yuanP = temp->pos(); yuanR = temp->geometry(); isMoving=true; targetR = w->geometry(); } void Widget::needChange(Card *w) { targetR = w->geometry(); // QPropertyAnimation *animation = new QPropertyAnimation(w,"geometry"); // animation->setDuration(300); // animation->setStartValue(w->geometry()); // animation->setEndValue(yuanR); // animation->start(); w->setGeometry(yuanR); yuanR = targetR; //isMoving=false; } void Widget::mouseMoveEvent(QMouseEvent *event) { temp->move(yuanP.x()+event->x()-startP.x(),yuanP.y()+event->y()-startP.y()); if(isMoving){ emit sendPos(event->pos()); } } void Widget::mouseReleaseEvent(QMouseEvent *event) { connect(this,&Widget::sendPos,temp,&Card::getPos); temp->raise(); qDebug()<<targetR; temp->setGeometry(targetR); isMoving=false; }