1 files changed, 88 insertions, 0 deletions
diff --git a/src/gui/editors/segment/segmentcanvas/SegmentEraser.cpp b/src/gui/editors/segment/segmentcanvas/SegmentEraser.cpp
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+++ b/src/gui/editors/segment/segmentcanvas/SegmentEraser.cpp
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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <glaurent@telegraph-road.org>,
+        Chris Cannam        <cannam@all-day-breakfast.com>,
+        Richard Bown        <richard.bown@ferventsoftware.com>
+ 
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+ 
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+ 
+    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; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+
+#include "SegmentEraser.h"
+
+#include "misc/Debug.h"
+#include "commands/segment/SegmentEraseCommand.h"
+#include "CompositionView.h"
+#include "CompositionItemImpl.h"
+#include "document/RosegardenGUIDoc.h"
+#include "gui/general/BaseTool.h"
+#include "gui/general/RosegardenCanvasView.h"
+#include "SegmentTool.h"
+#include <kcommand.h>
+#include <qpoint.h>
+#include <qstring.h>
+#include <klocale.h>
+
+
+namespace Rosegarden
+{
+
+SegmentEraser::SegmentEraser(CompositionView *c, RosegardenGUIDoc *d)
+        : SegmentTool(c, d)
+{
+    RG_DEBUG << "SegmentEraser()\n";
+}
+
+void SegmentEraser::ready()
+{
+    m_canvas->viewport()->setCursor(Qt::pointingHandCursor);
+    setBasicContextHelp();
+}
+
+void SegmentEraser::handleMouseButtonPress(QMouseEvent *e)
+{
+    setCurrentItem(m_canvas->getFirstItemAt(e->pos()));
+}
+
+void SegmentEraser::handleMouseButtonRelease(QMouseEvent*)
+{
+    if (m_currentItem) {
+        // no need to test the result, we know it's good (see handleMouseButtonPress)
+        CompositionItemImpl* item = dynamic_cast<CompositionItemImpl*>((_CompositionItem*)m_currentItem);
+
+        addCommandToHistory(new SegmentEraseCommand(item->getSegment()));
+    }
+
+    setCurrentItem(CompositionItem());
+}
+
+int SegmentEraser::handleMouseMove(QMouseEvent*)
+{
+    setBasicContextHelp();
+    return RosegardenCanvasView::NoFollow;
+}
+
+void SegmentEraser::setBasicContextHelp()
+{
+    setContextHelp(i18n("Click on a segment to delete it"));
+}    
+
+const QString SegmentEraser::ToolName   = "segmenteraser";
+
+}
+#include "SegmentEraser.moc"