1 files changed, 92 insertions, 0 deletions
diff --git a/libkdepim/overlaywidget.cpp b/libkdepim/overlaywidget.cpp
new file mode 100644
index 000000000..d9353fd31
--- /dev/null
+++ b/libkdepim/overlaywidget.cpp
@@ -0,0 +1,92 @@
+/** -*- c++ -*-
+ * overlaywidget.h
+ *
+ *  Copyright (c) 2004 David Faure <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ *  In addition, as a special exception, the copyright holders give
+ *  permission to link the code of this program with any edition of
+ *  the Qt library by Trolltech AS, Norway (or with modified versions
+ *  of Qt that use the same license as Qt), and distribute linked
+ *  combinations including the two.  You must obey the GNU General
+ *  Public License in all respects for all of the code used other than
+ *  Qt.  If you modify this file, you may extend this exception to
+ *  your version of the file, but you are not obligated to do so.  If
+ *  you do not wish to do so, delete this exception statement from
+ *  your version.
+ */
+
+#include "overlaywidget.h"
+using namespace KPIM;
+
+OverlayWidget::OverlayWidget( QWidget* alignWidget, QWidget* parent, const char* name )
+  : QHBox( parent, name ), mAlignWidget( 0 )
+{
+  setAlignWidget( alignWidget );
+}
+
+OverlayWidget::~OverlayWidget()
+{
+}
+
+void OverlayWidget::reposition()
+{
+  if ( !mAlignWidget )
+    return;
+  // p is in the alignWidget's coordinates
+  QPoint p;
+  // We are always above the alignWidget, right-aligned with it.
+  p.setX( mAlignWidget->width() - width() );
+  p.setY( -height() );
+  // Position in the toplevelwidget's coordinates
+  QPoint pTopLevel = mAlignWidget->mapTo( topLevelWidget(), p );
+  // Position in the widget's parentWidget coordinates
+  QPoint pParent = parentWidget()->mapFrom( topLevelWidget(), pTopLevel );
+  // Move 'this' to that position.
+  move( pParent );
+}
+
+void OverlayWidget::setAlignWidget( QWidget * w )
+{
+  if (w == mAlignWidget)
+    return;
+
+  if (mAlignWidget)
+    mAlignWidget->removeEventFilter(this);
+
+  mAlignWidget = w;
+
+  if (mAlignWidget)
+    mAlignWidget->installEventFilter(this);
+
+  reposition();
+}
+
+bool OverlayWidget::eventFilter( QObject* o, QEvent* e)
+{
+  if ( o == mAlignWidget &&
+       ( e->type() == QEvent::Move || e->type() == QEvent::Resize ) ) {
+    reposition();
+  }
+  return QFrame::eventFilter(o,e);
+}
+
+void OverlayWidget::resizeEvent( QResizeEvent* ev )
+{
+  reposition();
+  QFrame::resizeEvent( ev );
+}
+
+#include "overlaywidget.moc"