From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Sun, 10 Jul 2011 15:24:15 -0500
Subject: Add Qt3 development HEAD version

---
 examples/demo/dnd/listview.cpp | 72 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 examples/demo/dnd/listview.cpp

(limited to 'examples/demo/dnd/listview.cpp')

diff --git a/examples/demo/dnd/listview.cpp b/examples/demo/dnd/listview.cpp
new file mode 100644
index 0000000..8c87b23
--- /dev/null
+++ b/examples/demo/dnd/listview.cpp
@@ -0,0 +1,72 @@
+#include <qdragobject.h>
+#include <qapplication.h>
+#include "listview.h"
+#include "dnd.h"
+
+ListView::ListView( QWidget* parent, const char* name )
+    : QListView( parent, name )
+{
+    setAcceptDrops( TRUE );
+    setSorting( -1, FALSE );
+    dragging = FALSE;
+}
+
+ListView::~ListView()
+{
+
+}
+
+void ListView::dragEnterEvent( QDragEnterEvent *e )
+{
+    if ( e->provides( "text/dragdemotag" ) )
+	e->accept();
+}
+
+void ListView::dropEvent( QDropEvent *e )
+{
+    if ( !e->provides( "text/dragdemotag" ) )
+         return;
+
+    QString tag;
+
+    if ( QTextDrag::decode( e, tag ) ) {
+        IconItem item = ((DnDDemo*) parentWidget())->findItem( tag );
+        QListViewItem *after = itemAt( viewport()->mapFromParent( e->pos() ) );
+        ListViewItem *litem = new ListViewItem( this, after, item.name(), tag );
+        litem->setPixmap( 0, *item.pixmap() );
+    }
+}
+
+void ListView::contentsMousePressEvent( QMouseEvent *e )
+{
+    QListView::contentsMousePressEvent( e );
+    dragging = TRUE;
+    pressPos = e->pos();
+}
+
+void ListView::contentsMouseMoveEvent( QMouseEvent *e )
+{
+    QListView::contentsMouseMoveEvent( e );
+
+    if ( ! dragging ) return;
+
+    if ( !currentItem() ) return;
+
+    if ( ( pressPos - e->pos() ).manhattanLength() > QApplication::startDragDistance() ) {
+        QTextDrag *drg = new QTextDrag( ((ListViewItem*)currentItem())->tag(), this );
+
+	const QPixmap *p = ((ListViewItem*)currentItem())->pixmap( 0 );
+	if (p)
+	    drg->setPixmap(*p);
+        drg->setSubtype( "dragdemotag" );
+        drg->dragCopy();
+        dragging = FALSE;
+    }
+}
+
+void ListView::contentsMouseReleaseEvent( QMouseEvent *e )
+{
+    QListView::contentsMouseReleaseEvent( e );
+    dragging = FALSE;
+}
+
-- 
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