开始菜单应用列表增加拖拽到任务栏功能

src/UserInterface/ListView/listview.cpp

@@ -18,9 +18,11 @@
 #include "listview.h"
 #include "function_button_widget.h"
 #include "utility.h"
+#include "thumbnail.h"
 #include <QDebug>
 #include <QDesktopServices>
 #include <QtConcurrent/QtConcurrent>
+#include <QDrag>
 
 ListView::ListView(QWidget *parent/*, int width, int height, int module*/):
     KListView(parent)
@@ -29,6 +31,7 @@ ListView::ListView(QWidget *parent/*, int width, int height, int module*/):
     this->h = 540;
     this->module = 1;
     initWidget();
+    setDragEnabled(true);
     setAttribute(Qt::WA_AcceptTouchEvents);
     m_listmodel = new QStandardItemModel(this);
     this->setModel(m_listmodel);
@@ -47,6 +50,7 @@ ListView::~ListView()
 void ListView::initWidget()
 {
     setAttribute(Qt::WA_TranslucentBackground);
+    this->setAcceptDrops(true);
     viewport()->setAttribute(Qt::WA_TranslucentBackground);
     viewport()->setAutoFillBackground(false);
     this->setSelectionMode(QAbstractItemView::SingleSelection);
@@ -70,6 +74,34 @@ void ListView::initWidget()
     connect(this, &ListView::clicked, this, &ListView::onClicked);
 }
 
+void ListView::mouseMoveEvent(QMouseEvent *e)
+{
+    if (e->buttons() & Qt::LeftButton) {
+        if ((e->pos() - m_pressPos).manhattanLength() >= QApplication::startDragDistance()) {
+            myDebug() << "进入拖拽事件";
+            QString desktopfp = m_pressApp.value<QStringList>().at(0);
+            QMimeData *mimeData  = new QMimeData;
+            ThumbNail *dragImage = new ThumbNail;
+            QDrag *drag          = new QDrag(this);
+            QList<QUrl> desktopUrlList;
+            desktopUrlList.append(QUrl(desktopfp));
+            myDebug() << desktopUrlList;
+            mimeData->setUrls(desktopUrlList);
+            //设置拖拽时的缩略图
+            dragImage->setupthumbnail(desktopfp);
+            QPixmap pixmap = dragImage->grab();
+            pixmap = pixmap.scaled(QSize(32, 32), Qt::KeepAspectRatio);
+            myDebug() << mimeData;
+            drag->setMimeData(mimeData);
+            drag->setPixmap(pixmap);
+            drag->setHotSpot(QPoint(pixmap.width(), pixmap.height()));
+            drag->exec(Qt::MoveAction);
+            delete dragImage;
+            dragImage = nullptr;
+        }
+    }
+}
+
 void ListView::addData(QVector<QStringList> data, int module)
 {
     this->module = module;

src/UserInterface/ListView/listview.h

@@ -50,11 +50,14 @@ protected:
     void paintEvent(QPaintEvent *e) override;
     void keyPressEvent(QKeyEvent *e);
     bool event(QEvent *e);
+    void mouseMoveEvent(QMouseEvent *e);
+
 private:
     int w = 0;
     int h = 0;
     int m_preRowCount;
     bool m_scrollbarState = true;
+    QPoint m_pressPos;
 
 
 private Q_SLOTS: