/* Rosegarden A MIDI and audio sequencer and musical notation editor. This program is Copyright 2000-2008 Guillaume Laurent , Chris Cannam , Richard Bown 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 "PianoKeyboard.h" #include "misc/Debug.h" #include "gui/general/GUIPalette.h" #include "gui/general/MidiPitchLabel.h" #include "gui/rulers/PitchRuler.h" #include "MatrixStaff.h" #include "MatrixView.h" #include #include #include #include #include #include #include namespace Rosegarden { const unsigned int _smallWhiteKeyHeight = 14; const unsigned int _whiteKeyHeight = 18; PianoKeyboard::PianoKeyboard(TQWidget *parent, int keys) : PitchRuler(parent), m_keySize(48, 18), m_blackKeySize(24, 8), m_nbKeys(keys), m_mouseDown(false), m_hoverHighlight(new TQWidget(this)), m_lastHoverHighlight(0), m_lastKeyPressed(0) { m_hoverHighlight->hide(); m_hoverHighlight->setPaletteBackgroundColor(GUIPalette::getColour(GUIPalette::MatrixKeyboardFocus)); setPaletteBackgroundColor(TQColor(238, 238, 224)); computeKeyPos(); setMouseTracking(true); } TQSize PianoKeyboard::sizeHint() const { return TQSize(m_keySize.width(), m_keySize.height() * m_nbKeys); } TQSize PianoKeyboard::minimumSizeHint() const { return m_keySize; } void PianoKeyboard::computeKeyPos() { // int y = -9; int y = -4; unsigned int posInOctave = 0, keyHeight = _smallWhiteKeyHeight; for (unsigned int i = 0; i < m_nbKeys; ++i) { posInOctave = (i + 5) % 7; if (y >= 0) { m_whiteKeyPos.push_back(y); m_allKeyPos.push_back(y); } if (posInOctave == 2) m_labelKeyPos.push_back(y + (keyHeight * 3 / 4) - 2); if (posInOctave == 0 || posInOctave == 2 || posInOctave == 6 || posInOctave == 3) { // draw shorter white key keyHeight = _smallWhiteKeyHeight; if (posInOctave == 2 || posInOctave == 6) --keyHeight; } else { keyHeight = _whiteKeyHeight; } if (posInOctave != 2 && posInOctave != 6) { // draw black key unsigned int bY = y + keyHeight - m_blackKeySize.height() / 2; m_blackKeyPos.push_back(bY); m_allKeyPos.push_back(bY); } y += keyHeight; } } void PianoKeyboard::paintEvent(TQPaintEvent*) { static TQFont *pFont = 0; if (!pFont) { pFont = new TQFont(); pFont->setPixelSize(9); } TQPainter paint(this); paint.setFont(*pFont); for (unsigned int i = 0; i < m_whiteKeyPos.size(); ++i) paint.drawLine(0, m_whiteKeyPos[i], m_keySize.width(), m_whiteKeyPos[i]); for (unsigned int i = 0; i < m_labelKeyPos.size(); ++i) { int pitch = (m_labelKeyPos.size() - i) * 12; // for some reason I don't immediately comprehend, // m_labelKeyPos contains two more octaves than we need pitch -= 24; MidiPitchLabel label(pitch); paint.drawText(m_blackKeySize.width(), m_labelKeyPos[i], label.getTQString()); } paint.setBrush(colorGroup().foreground()); for (unsigned int i = 0; i < m_blackKeyPos.size(); ++i) paint.drawRect(0, m_blackKeyPos[i], m_blackKeySize.width(), m_blackKeySize.height()); } void PianoKeyboard::enterEvent(TQEvent *) { //drawHoverNote(e->y()); } void PianoKeyboard::leaveEvent(TQEvent*) { m_hoverHighlight->hide(); int pos = mapFromGlobal( cursor().pos() ).x(); if ( pos > m_keySize.width() - 5 || pos < 0 ) { // bit of a hack emit keyReleased(m_lastKeyPressed, false); } } void PianoKeyboard::drawHoverNote(int evPitch) { if (m_lastHoverHighlight != evPitch) { //MATRIX_DEBUG << "PianoKeyboard::drawHoverNote : note = " << evPitch << endl; m_lastHoverHighlight = evPitch; int count = 0; std::vector::iterator it; for (it = m_allKeyPos.begin(); it != m_allKeyPos.end(); ++it, ++count) { if (126 - evPitch == count) { int width = m_keySize.width() - 8; int yPos = *it + 5; // check if this is a black key // std::vector::iterator bIt; bool isBlack = false; for (bIt = m_blackKeyPos.begin(); bIt != m_blackKeyPos.end(); ++bIt) { if (*bIt == *it) { isBlack = true; break; } } // Adjust for black note // if (isBlack) { width = m_blackKeySize.width() - 8; yPos -= 3; } else { // If a white note then ensure that we allow for short/tall ones // std::vector::iterator wIt = m_whiteKeyPos.begin(), tIt; while (wIt != m_whiteKeyPos.end()) { if (*wIt == *it) { tIt = wIt; if (++tIt != m_whiteKeyPos.end()) { //MATRIX_DEBUG << "WHITE KEY HEIGHT = " << *tIt - *wIt << endl; if (*tIt - *wIt == _whiteKeyHeight) { yPos += 2; } } } ++wIt; } } m_hoverHighlight->setFixedSize(width, 4); m_hoverHighlight->move(3, yPos); m_hoverHighlight->show(); return ; } } } } void PianoKeyboard::mouseMoveEvent(TQMouseEvent* e) { // The routine to work out where this should appear doesn't coincide with the note // that we send to the sequencer - hence this is a bit pointless and crap at the moment. // My own fault it's so crap but there you go. // // RWB (20040220) // MatrixView *matrixView = dynamic_cast(topLevelWidget()); if (matrixView) { MatrixStaff *staff = matrixView->getStaff(0); if (staff) { drawHoverNote(staff->getHeightAtCanvasCoords(e->x(), e->y())); } } if (e->state() & Qt::LeftButton) { if (m_selecting) emit keySelected(e->y(), true); else emit keyPressed(e->y(), true); // we're swooshing emit keyReleased(m_lastKeyPressed, true); m_lastKeyPressed = e->y(); } else emit hoveredOverKeyChanged(e->y()); } void PianoKeyboard::mousePressEvent(TQMouseEvent *e) { TQt::ButtonState bs = e->state(); if (e->button() == Qt::LeftButton) { m_mouseDown = true; m_selecting = (bs & TQt::ShiftButton); m_lastKeyPressed = e->y(); if (m_selecting) emit keySelected(e->y(), false); else emit keyPressed(e->y(), false); } } void PianoKeyboard::mouseReleaseEvent(TQMouseEvent *e) { if (e->button() == Qt::LeftButton) { m_mouseDown = false; m_selecting = false; emit keyReleased(e->y(), false); } } } #include "PianoKeyboard.moc"