Add Qt3 development HEAD version

1 files changed, 149 insertions, 0 deletions

diff --git a/tools/designer/designer/listdnd.cpp b/tools/designer/designer/listdnd.cpp
new file mode 100644
index 0000000..27adccd
--- /dev/null
+++ b/tools/designer/designer/listdnd.cpp
@@ -0,0 +1,149 @@
+/**********************************************************************
+** Copyright (C) 2005-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of Qt Designer.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with
+** the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#include "listdnd.h"
+#include <qwidget.h>
+#include <qpainter.h>
+
+ListDnd::ListDnd( QScrollView * eventSource, const char * name )
+    : QObject( eventSource, name ),
+      dragInside( FALSE ), dragDelete( TRUE ), dropConfirmed( FALSE ), dMode( Both )
+{
+    src = eventSource;
+    src->setAcceptDrops( TRUE );
+    src->installEventFilter( this );
+    src->viewport()->installEventFilter( this );
+
+    line = new QWidget( src->viewport(), 0, Qt::WStyle_NoBorder | WStyle_StaysOnTop );
+    line->setBackgroundColor( Qt::black );
+    line->resize( src->viewport()->width(), 2 );
+    line->hide();
+}
+
+void ListDnd::setDragMode( int mode )
+{
+    dMode = mode;
+}
+
+int ListDnd::dragMode() const
+{
+    return dMode;
+}
+
+bool ListDnd::eventFilter( QObject *, QEvent * event )
+{
+    switch ( event->type() ) {
+    case QEvent::DragEnter:
+	return dragEnterEvent( (QDragEnterEvent *) event );
+    case QEvent::DragLeave:
+	return dragLeaveEvent( (QDragLeaveEvent *) event );
+    case QEvent::DragMove:
+	return dragMoveEvent( (QDragMoveEvent *) event );
+    case QEvent::Drop:
+	return dropEvent( (QDropEvent *) event );
+    case QEvent::MouseButtonPress:
+	return mousePressEvent( (QMouseEvent *) event );
+    case QEvent::MouseMove:
+	return mouseMoveEvent( (QMouseEvent *) event );
+    default:
+	break;
+    }
+    return FALSE;
+}
+
+
+bool ListDnd::dragEnterEvent( QDragEnterEvent * event )
+{
+    if ( dMode == None ) {
+	return TRUE;
+    }
+
+    bool ok = ( ( ( dMode & Both ) == Both ) ||
+		( ( dMode & Internal ) && ( event->source() == src ) ) ||
+		( ( dMode & External ) && ( event->source() != src ) ) );
+
+    if ( ok && canDecode( event ) ) {
+	event->accept();
+	dragInside = TRUE;
+	if ( !( dMode & NullDrop ) ) {
+	    updateLine( event->pos() );
+	    line->show();
+	}
+    }
+    return TRUE;
+}
+
+bool ListDnd::dragLeaveEvent( QDragLeaveEvent * )
+{
+    dragInside = FALSE;
+    line->hide();
+    return TRUE;
+}
+
+bool ListDnd::dragMoveEvent( QDragMoveEvent * event )
+{
+    if ( dragInside && dMode && !( dMode & NullDrop ) ) {
+	updateLine( event->pos() );
+    }
+    return TRUE;
+}
+
+bool ListDnd::dropEvent( QDropEvent * )
+{
+    // do nothing
+    return FALSE;
+}
+
+bool ListDnd::mousePressEvent( QMouseEvent * event )
+{
+    if ( event->button() == LeftButton )
+	mousePressPos = event->pos();
+    return FALSE;
+}
+
+bool ListDnd::mouseMoveEvent( QMouseEvent * )
+{
+    // do nothing
+    return FALSE;
+}
+
+void ListDnd::updateLine( const QPoint & )
+{
+    // do nothing
+}
+
+bool ListDnd::canDecode( QDragEnterEvent * )
+{
+    // do nothing
+    return FALSE;
+}