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, 204 insertions, 0 deletions

diff --git a/src/gui/rulers/PercussionPitchRuler.cpp b/src/gui/rulers/PercussionPitchRuler.cpp
new file mode 100644
index 0000000..a89ae89
--- /dev/null
+++ b/src/gui/rulers/PercussionPitchRuler.cpp
@@ -0,0 +1,204 @@
+/* -*- 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 "PercussionPitchRuler.h"
+
+#include "misc/Debug.h"
+#include "misc/Strings.h"
+#include "base/MidiProgram.h"
+#include "gui/editors/matrix/MatrixStaff.h"
+#include "gui/editors/matrix/MatrixView.h"
+#include "gui/general/MidiPitchLabel.h"
+#include "PitchRuler.h"
+#include <qcolor.h>
+#include <qevent.h>
+#include <qfont.h>
+#include <qfontmetrics.h>
+#include <qpainter.h>
+#include <qsize.h>
+#include <qwidget.h>
+
+
+namespace Rosegarden
+{
+
+PercussionPitchRuler::PercussionPitchRuler(QWidget *parent,
+        const MidiKeyMapping *mapping,
+        int lineSpacing) :
+        PitchRuler(parent),
+        m_mapping(mapping),
+        m_lineSpacing(lineSpacing),
+        m_mouseDown(false),
+        m_lastHoverHighlight( -1)
+{
+    m_font = new QFont();
+    m_font->setPixelSize(9);
+    m_fontMetrics = new QFontMetrics(*m_font);
+    m_width = m_fontMetrics->width("  A#2   Acoustic Bass Drum  ");
+
+    setPaletteBackgroundColor(QColor(238, 238, 224));
+
+    setMouseTracking(true);
+}
+
+QSize PercussionPitchRuler::sizeHint() const
+{
+    return QSize(m_width,
+                 (m_lineSpacing + 1) * m_mapping->getPitchExtent());
+}
+
+QSize PercussionPitchRuler::minimumSizeHint() const
+{
+    return QSize(m_width, m_lineSpacing + 1);
+}
+
+void PercussionPitchRuler::paintEvent(QPaintEvent*)
+{
+    QPainter paint(this);
+
+    paint.setFont(*m_font);
+
+    int minPitch = m_mapping->getPitchForOffset(0);
+    int extent = m_mapping->getPitchExtent();
+
+    for (int i = 0; i < extent; ++i) {
+        paint.drawLine(0, i * (m_lineSpacing + 1),
+                       m_width, i * (m_lineSpacing + 1));
+    }
+
+    int lw = m_fontMetrics->width("A#2");
+
+    for (int i = 0; i < extent; ++i) {
+
+        MidiPitchLabel label(minPitch + i);
+        std::string key = m_mapping->getMapForKeyName(minPitch + i);
+
+        RG_DEBUG << i << ": " << label.getQString() << ": " << key << endl;
+
+        paint.drawText
+        (2, (extent - i - 1) * (m_lineSpacing + 1) +
+         m_fontMetrics->ascent() + 1,
+         label.getQString());
+
+        paint.drawText
+        (9 + lw, (extent - i - 1) * (m_lineSpacing + 1) +
+         m_fontMetrics->ascent() + 1,
+         strtoqstr(key));
+    }
+}
+
+void PercussionPitchRuler::enterEvent(QEvent *)
+{}
+
+void PercussionPitchRuler::leaveEvent(QEvent*)
+{
+    //    m_hoverHighlight->hide();
+}
+
+void PercussionPitchRuler::drawHoverNote(int evPitch)
+{
+    QPainter paint(this);
+    paint.setFont(*m_font);
+
+    if (m_lastHoverHighlight != evPitch) {
+
+        int minPitch = m_mapping->getPitchForOffset(0);
+        int extent = m_mapping->getPitchExtent();
+
+        int lw = m_fontMetrics->width("A#2");
+
+        if (m_lastHoverHighlight >= 0) {
+
+            int y = (extent - (m_lastHoverHighlight - minPitch) - 1) * (m_lineSpacing + 1);
+            paint.setBrush(QColor(238, 238, 224));
+            paint.setPen(QColor(238, 238, 224));
+            paint.drawRect(lw + 7, y + 1, m_width - lw, m_lineSpacing);
+            std::string key = m_mapping->getMapForKeyName(m_lastHoverHighlight);
+            paint.setPen(Qt::black);
+            paint.drawText
+            (9 + lw, y + m_fontMetrics->ascent() + 1,
+             strtoqstr(key));
+        }
+
+        int y = (extent - (evPitch - minPitch) - 1) * (m_lineSpacing + 1);
+        m_lastHoverHighlight = evPitch;
+        paint.setBrush(paint.pen().color());
+        paint.drawRect(lw + 7, y, m_width - lw, m_lineSpacing + 1);
+        paint.setPen(QColor(238, 238, 224));
+
+        std::string key = m_mapping->getMapForKeyName(evPitch);
+        paint.drawText
+        (9 + lw, y + m_fontMetrics->ascent() + 1,
+         strtoqstr(key));
+    }
+}
+
+void PercussionPitchRuler::mouseMoveEvent(QMouseEvent* e)
+{
+    // ugh
+
+    MatrixView *matrixView = dynamic_cast<MatrixView*>(topLevelWidget());
+    if (matrixView) {
+        MatrixStaff *staff = matrixView->getStaff(0);
+        if (staff) {
+            drawHoverNote(staff->getHeightAtCanvasCoords(e->x(), e->y()));
+        }
+    }
+
+    if (m_mouseDown)
+        if (m_selecting)
+            emit keySelected(e->y(), true);
+        else
+            emit keyPressed(e->y(), true); // we're swooshing
+    else
+        emit hoveredOverKeyChanged(e->y());
+}
+
+void PercussionPitchRuler::mousePressEvent(QMouseEvent *e)
+{
+    Qt::ButtonState bs = e->state();
+
+    if (e->button() == LeftButton) {
+
+        m_mouseDown = true;
+        m_selecting = (bs & Qt::ShiftButton);
+
+        if (m_selecting)
+            emit keySelected(e->y(), false);
+        else
+            emit keyPressed(e->y(), false);
+    }
+}
+
+void PercussionPitchRuler::mouseReleaseEvent(QMouseEvent *e)
+{
+    if (e->button() == LeftButton) {
+        m_mouseDown = false;
+        m_selecting = false;
+    }
+}
+
+}
+#include "PercussionPitchRuler.moc"