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f742710758
Summary: * `NULL` -> `nullptr` * `gui` -> Function `getGUI()` * `pluginFactory` -> Function `getPluginFactory()` * `assert` (redefinition) -> using `NDEBUG` instead, which standard `assert` respects. * `powf` (C stdlib symbol clash) -> removed and all expansions replaced with calls to `std::pow`. * `exp10` (nonstandard function symbol clash) -> removed and all expansions replaced with calls to `std::pow`. * `PATH_DEV_DSP` -> File-scope QString of identical name and value. * `VST_SNC_SHM_KEY_FILE` -> constexpr char* with identical name and value. * `MM_ALLOC` and `MM_FREE` -> Functions with identical name and implementation. * `INVAL`, `OUTVAL`, etc. for automation nodes -> Functions with identical names and implementations. * BandLimitedWave.h: All integer constant macros replaced with constexpr ints of same name and value. * `FAST_RAND_MAX` -> constexpr int of same name and value. * `QSTR_TO_STDSTR` -> Function with identical name and equivalent implementation. * `CCONST` -> constexpr function template with identical name and implementation. * `F_OPEN_UTF8` -> Function with identical name and equivalent implementation. * `LADSPA_PATH_SEPARATOR` -> constexpr char with identical name and value. * `UI_CTRL_KEY` -> constexpr char* with identical name and value. * `ALIGN_SIZE` -> Renamed to `LMMS_ALIGN_SIZE` and converted from a macro to a constexpr size_t. * `JACK_MIDI_BUFFER_MAX` -> constexpr size_t with identical name and value. * versioninfo.h: `PLATFORM`, `MACHINE` and `COMPILER_VERSION` -> prefixed with `LMMS_BUILDCONF_` and converted from macros to constexpr char* literals. * Header guard _OSCILLOSCOPE -> renamed to OSCILLOSCOPE_H * Header guard _TIME_DISPLAY_WIDGET -> renamed to TIME_DISPLAY_WIDGET_H * C-style typecasts in DrumSynth.cpp have been replaced with `static_cast`. * constexpr numerical constants are initialized with assignment notation instead of curly brace intializers. * In portsmf, `Alg_seq::operator[]` will throw an exception instead of returning null if the operator index is out of range. Additionally, in many places, global constants that were declared as `const T foo = bar;` were changed from const to constexpr, leaving them const and making them potentially evaluable at compile time. Some macros that only appeared in single source files and were unused in those files have been removed entirely.
140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
/*
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* Piano.cpp - implementation of piano-widget used in instrument-track-window
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* for testing + according model class
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*
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* Copyright (c) 2004-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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/** \file Piano.cpp
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* \brief A piano keyboard to play notes on in the instrument plugin window.
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*/
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/*
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* \mainpage Instrument plugin keyboard display classes
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*
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* \section introduction Introduction
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*
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* \todo fill this out
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* \todo write isWhite inline function and replace throughout
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*/
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#include "Piano.h"
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#include "InstrumentTrack.h"
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/*! The black / white order of keys as they appear on the keyboard.
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*/
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static const Piano::KeyTypes KEY_ORDER[] =
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{
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// C CIS D DIS
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Piano::WhiteKey, Piano::BlackKey, Piano::WhiteKey, Piano::BlackKey,
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// E F FIS G
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Piano::WhiteKey, Piano::WhiteKey, Piano::BlackKey, Piano::WhiteKey,
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// GIS A AIS B
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Piano::BlackKey, Piano::WhiteKey, Piano::BlackKey, Piano::WhiteKey
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} ;
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/*! \brief Create a new keyboard display
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*
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* \param _it the InstrumentTrack window to attach to
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*/
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Piano::Piano( InstrumentTrack* track ) :
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Model( nullptr ), /*!< base class ctor */
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m_instrumentTrack( track ),
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m_midiEvProc( track ) /*!< the InstrumentTrack Model */
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{
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for( int i = 0; i < NumKeys; ++i )
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{
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m_pressedKeys[i] = false;
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}
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}
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/*! \brief Turn a key on or off
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*
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* \param key the key number to change
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* \param state the state to set the key to
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*/
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void Piano::setKeyState( int key, bool state )
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{
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if( isValidKey( key ) )
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{
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m_pressedKeys[key] = state;
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emit dataChanged();
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}
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}
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/*! \brief Handle a note being pressed on our keyboard display
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*
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* \param key the key being pressed
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*/
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void Piano::handleKeyPress( int key, int midiVelocity )
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{
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if( midiVelocity == -1 )
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{
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midiVelocity = m_instrumentTrack->midiPort()->baseVelocity();
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}
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if( isValidKey( key ) )
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{
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m_midiEvProc->processInEvent( MidiEvent( MidiNoteOn, -1, key, midiVelocity ) );
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m_pressedKeys[key] = true;
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}
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}
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/*! \brief Handle a note being released on our keyboard display
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*
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* \param key the key being releassed
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*/
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void Piano::handleKeyRelease( int key )
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{
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if( isValidKey( key ) )
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{
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m_midiEvProc->processInEvent( MidiEvent( MidiNoteOff, -1, key, 0 ) );
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m_pressedKeys[key] = false;
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}
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}
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bool Piano::isBlackKey( int key )
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{
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int keyCode = key % KeysPerOctave;
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return KEY_ORDER[keyCode] == Piano::BlackKey;
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}
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bool Piano::isWhiteKey( int key )
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{
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return !isBlackKey( key );
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}
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