C++ (Cpp) QDragObject::dragCopy Examples

Example #1

void KSnapshot::slotDragSnapshot()
{
    QDragObject *drobj = new QImageDrag(snapshot.convertToImage(), this);
    Q_CHECK_PTR(drobj);
    drobj->setPixmap(mainWidget->preview());
    drobj->dragCopy();
}

Example #2

File: main.cpp Project: nightfly19/renyang-learn

    void mousePressEvent(QMouseEvent *e) {
        if(e->button() == LeftButton) {
            if(labeltype == Des)
                return;

            QDragObject *drobj = 0;

            if(pixmap()) { // 如果有圖片
                // 產生QDragObject
                drobj = new QImageDrag(pixmap()->convertToImage(), this);

                QPixmap pm;
                // 產生縮圖
                pm.convertFromImage(
                   pixmap()->convertToImage().smoothScale(25, 25));
                // 拖曳時的顯示圖形與游標位移
                drobj->setPixmap(pm, QPoint(-14, -20));
            }
            else if(text()) { // 如果有文字
                drobj = new QTextDrag(text(), this);
                drobj->setPixmap(QPixmap("text.gif"), QPoint(-25, -15));
            }

            // ?#125;始拖放動作
            if(drobj)
                drobj->dragCopy();
        }
    }   

Example #3

void TextShow::startDrag()
{
    QDragObject *drag = new QTextDrag(selectedText(), viewport());
    if ( isReadOnly() ) {
        drag->dragCopy();
    } else {
        if ( drag->drag() && QDragObject::target() != this && QDragObject::target() != viewport() )
            removeSelectedText();
    }
}

Example #4

File: dropsite.cpp Project: kthxbyte/Qt1.45-Linaro

void DropSite::mousePressEvent( QMouseEvent * /*e*/ )
{
    QDragObject *d;
    if ( pixmap() ) {
	d = new QImageDrag( pixmap()->convertToImage(), this );
	QPixmap pm;
	pm.convertFromImage(pixmap()->convertToImage().smoothScale(
	   pixmap()->width()/3,pixmap()->height()/3));
	d->setPixmap(pm,QPoint(-5,-7));
    } else {
	d = new QTextDrag( text(), this );
    }
    d->dragCopy();
}

Example #5

File: forms.cpp Project: FMX/CGAL

/*! mouseMoveEvent - mouse move on the list box */
void DDListBox::mouseMoveEvent( QMouseEvent * )
{
  if (count() == max_items && max_items != 0 && flag)
  {
    for (unsigned int i = 0; i < count(); i++)
      changeItem( QPixmap( green_icon ) , text(i) , i);
    flag = false;
  }

  if ( dragging && item(currentItem())->isSelectable() )
  {
    QDragObject *d = new  QTextDrag( currentText() , this );
    d->dragCopy(); // do NOT delete d.
    dragging = FALSE;
    unsigned int current = currentItem();
    if (count() == max_items && max_items != 0)
    {
      char s[100];
      strcpy(s, currentText());
      char * traits;
      traits = strtok(s," ");
      traits = strtok(NULL, " ");
      traits = strtok(NULL, " ");
      traits = strtok(NULL, " ");

      for (unsigned int i = 0; i < max_items; i++)
      {
        char s_i[100];
        strcpy(s_i, text(i));
        char * traits_i;
        traits_i = strtok(s_i," ");
        traits_i = strtok(NULL, " ");
        traits_i = strtok(NULL, " ");
        traits_i = strtok(NULL, " ");
        bool b = (strcmp(traits,traits_i) == 0);
        if (!b && i != current )
        {
          changeItem( QPixmap( white_icon ) , text(i) , i);
          item(i)->setSelectable( b );
        }
      }
    }

    removeItem ( current );
  }
}

Example #6

void Test::initiateDrag( QWidget *w )
{
   QDragObject *d = new QTextDrag( mWidget->label( mWidget->indexOf( w ) ), this );
   d->dragCopy(); // do NOT delete d.
}

Example #7

File: doc_src_dnd.cpp Project: maxxant/qt

//! [0]
void MyQt3Widget::customStartDragFunction()
{
    QDragObject *d = new QTextDrag( myHighlightedText(), this );
    d->dragCopy();
    // do NOT delete d.
}