Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 192 insertions, 0 deletions

diff --git a/src/commands/matrix/MatrixPercussionInsertionCommand.cpp b/src/commands/matrix/MatrixPercussionInsertionCommand.cpp
new file mode 100644
index 0000000..513663d
--- /dev/null
+++ b/src/commands/matrix/MatrixPercussionInsertionCommand.cpp
@@ -0,0 +1,192 @@
+/* -*- 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   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    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 "MatrixPercussionInsertionCommand.h"
+
+#include <klocale.h>
+#include "base/Composition.h"
+#include "base/Event.h"
+#include "base/NotationTypes.h"
+#include "base/Segment.h"
+#include "base/SegmentMatrixHelper.h"
+#include "document/BasicCommand.h"
+#include "base/BaseProperties.h"
+#include "misc/Debug.h"
+
+
+namespace Rosegarden
+{
+using namespace BaseProperties;
+
+
+MatrixPercussionInsertionCommand::MatrixPercussionInsertionCommand(Segment &segment,
+        timeT time,
+        Event *event) :
+        BasicCommand(i18n("Insert Percussion Note"), segment,
+                     getEffectiveStartTime(segment, time, *event),
+                     getEndTime(segment, time, *event)),
+        m_event(0),
+        m_time(time)
+{
+    timeT endTime = getEndTime(segment, time, *event);
+    m_event = new Event(*event, time, endTime - time);
+}
+
+MatrixPercussionInsertionCommand::~MatrixPercussionInsertionCommand()
+{
+    delete m_event;
+    // don't want to delete m_lastInsertedEvent, it's just an alias
+}
+
+void MatrixPercussionInsertionCommand::modifySegment()
+{
+    MATRIX_DEBUG << "MatrixPercussionInsertionCommand::modifySegment()\n";
+
+    if (!m_event->has(VELOCITY)) {
+        m_event->set
+        <Int>(VELOCITY, 100);
+    }
+
+    Segment &s = getSegment();
+
+    Segment::iterator i = s.findTime(m_time);
+
+    int pitch = 0;
+    if (m_event->has(PITCH)) {
+        pitch = m_event->get
+                <Int>(PITCH);
+    }
+
+    while (i != s.begin()) {
+
+        --i;
+
+        if ((*i)->getAbsoluteTime() < m_time &&
+                (*i)->isa(Note::EventType)) {
+
+            if ((*i)->has(PITCH) &&
+                    (*i)->get
+                    <Int>(PITCH) == pitch) {
+
+                if ((*i)->getAbsoluteTime() + (*i)->getDuration() > m_time) {
+                    Event *newPrevious = new Event
+                                         (**i, (*i)->getAbsoluteTime(), m_time - (*i)->getAbsoluteTime());
+                    s.erase(i);
+                    i = s.insert(newPrevious);
+                } else {
+                    break;
+                }
+            }
+        }
+    }
+
+    SegmentMatrixHelper helper(s);
+    m_lastInsertedEvent = new Event(*m_event);
+    helper.insertNote(m_lastInsertedEvent);
+}
+
+timeT
+MatrixPercussionInsertionCommand::getEffectiveStartTime(Segment &segment,
+        timeT time,
+        Event &event)
+{
+    timeT startTime = time;
+
+    int pitch = 0;
+    if (event.has(PITCH)) {
+        pitch = event.get<Int>(PITCH);
+    }
+
+    Segment::iterator i = segment.findTime(time);
+    while (i != segment.begin()) {
+        --i;
+
+        if ((*i)->has(PITCH) &&
+                (*i)->get
+                <Int>(PITCH) == pitch) {
+
+            if ((*i)->getAbsoluteTime() < time &&
+                    (*i)->isa(Note::EventType)) {
+                if ((*i)->getAbsoluteTime() + (*i)->getDuration() > time) {
+                    startTime = (*i)->getAbsoluteTime();
+                } else {
+                    break;
+                }
+            }
+        }
+    }
+
+    return startTime;
+}
+
+timeT
+MatrixPercussionInsertionCommand::getEndTime(Segment &segment,
+        timeT time,
+        Event &event)
+{
+    timeT endTime =
+        time + Note(Note::Semibreve,
+                    0).getDuration();
+    timeT barEndTime = segment.getBarEndForTime(time);
+    timeT segmentEndTime = segment.getEndMarkerTime();
+
+    if (barEndTime > endTime)
+        endTime = barEndTime;
+    if (endTime > segmentEndTime)
+        endTime = segmentEndTime;
+
+    int pitch = 0;
+    if (event.has(PITCH)) {
+        pitch = event.get<Int>(PITCH);
+    }
+
+    for (Segment::iterator i = segment.findTime(time);
+            segment.isBeforeEndMarker(i); ++i) {
+
+        if ((*i)->has(PITCH) &&
+                (*i)->get
+                <Int>(PITCH) == pitch) {
+
+            if ((*i)->getAbsoluteTime() > time &&
+                    (*i)->isa(Note::EventType)) {
+                endTime = (*i)->getAbsoluteTime();
+            }
+        }
+    }
+
+    Composition *comp = segment.getComposition();
+    std::pair<timeT, timeT> barRange =
+        comp->getBarRangeForTime(time);
+    timeT barDuration = barRange.second - barRange.first;
+
+
+    if (endTime > time + barDuration) {
+        endTime = time + barDuration;
+    }
+
+    return endTime;
+}
+
+}