Data Structures

Here are the data structures with brief descriptions:

[detail level 123]

NH2Core
CADSR	Attack Decay Sustain Release envelope
CAlsaAudioDriver
CAlsaMidiDriver	Alsa Midi Driver Based on Matthias Nagorni alsa sequencer example
Catomic_obj_cpt_t	Objects class map item type
CAudioEngine	The audio engine deals with two distinct TransportPosition
C_locker_struct
Ccompare_pNotes	Song Note FIFO
CAudioEngineLocking	AudioEngineLocking
CAudioEngineTests	Defined in here since it requires access to methods and variables private to the AudioEngine class
CAudioOutput	Base abstract class for audio output classes
CAutomationPath
CAutomationPathSerializer
CBase	Base class
CColorTheme	Colors for hydrogen
CCoreActionController
CCoreAudioDriver
CCoreMidiDriver
CDiskWriterDriver	Driver for export audio to disk
CDrumkit	Drumkit info
CDrumkitComponent
CEffects
CEnvelopePoint	A container for a sample, being able to apply modifications on it
CComparator	To be able to sort velocity points vectors
CEvent	Basic building block for the communication between the core of Hydrogen and its GUI
CEventQueue	Object handling the communication between the core of Hydrogen and its GUI
CAddMidiNoteVector
CFakeDriver	Fake audio driver
CFiles	Files is in charge of writing and reading Patterns, Drumkits, Songs to the filesystem
CFilesystem	Filesystem is a thin layer over QDir, QFile and QFileInfo
CFontTheme
CFuture	Ensures compatibility with XML files created with Hydrogen version >= v2.0
CH2Exception
CHydrogen	Hydrogen Audio Engine
CInstrument	Instrument class
CInstrumentComponent
CInstrumentLayer	InstrumentLayer is part of an instrument each layer has it's own : gain which is the ration between the input sample and the output signal, pitch which allows you to play the sample at a faster or lower frequency, start velocity and end velocity which allows you to chose between a layer or another within an instrument by changing the velocity of the played note
CInstrumentList	InstrumentList is a collection of instruments used within a song, a drumkit, ..
CContent
CInterfaceTheme
CJackAudioDriver	JACK (Jack Audio Connection Kit) server driver
CJackMidiDriver
CLadspaControlPort
CLadspaFX
CLadspaFXGroup
CLadspaFXInfo
CLegacy	Legacy is a container for legacy code which should be once removed
CLicense	Wrapper class to help Hydrogen deal with the license information specified in a drumkit
CLilyPond	A class to convert a Hydrogen song to LilyPond format
CLogger	Class for writing logs to the console
CCrashContext	Helper class to preserve and restore recursive crash context strings using an RAAI pattern
CMidiInput	MIDI input base class
CMidiMessage
CMidiOutput	MIDI input base class
CNote	A note plays an associated instrument with a velocity left and right pan
CNullDriver
Cobj_cpt_t
CObject
COssDriver	OSS Audio Driver
CPattern	Pattern class is a Note container
CPatternList	PatternList is a collection of patterns
CPlaylist	Drumkit info
CEntry
CPortAudioDriver
CPortMidiDriver
CPreferences	Manager for User Preferences File (singleton)
CPulseAudioDriver	PulseAudio driver
CRandom	Container for functions generating random number
CSample
CLoops	Set of loop configuration flags
CRubberband	Set of rubberband configuration flags
CSampler	Waveform based sampler
CSelectedLayerInfo	Auxiliary variables storing the rendering state of a H2Core::Note within the H2Core::Sampler
CSMF
CSMF0Writer
CSMF1Writer
CSMF1WriterMulti
CSMF1WriterSingle
CSMFBase
CSMFBuffer
CSMFCopyRightNoticeMetaEvent
CSMFEvent
CSMFHeader
CSMFNoteOffEvent
CSMFNoteOnEvent
CSMFSetTempoMetaEvent
CSMFTimeSignatureMetaEvent
CSMFTrack
CSMFTrackNameMetaEvent
CSMFWriter
CSong	Song class
CSongEditorPanelBpmWidget
CSongEditorPanelTagWidget
CSoundLibraryDatabase	This class holds information about all installed soundlibrary items
CSoundLibraryInfo	This class holds information about a soundlibrary
CSoundLibraryPropertiesDialog
CSynth	A simple synthetizer..
CTheme
CTimeline	Timeline class storing and handling all TempoMarkers and Tags
CTag	Tag specifies a note added to a certain position in the Song
CTagComparator
CTempoMarker	TempoMarker specifies a change in speed during the Song
CTempoMarkerComparator
CTranslations	Translations manager
CTransportPosition	Object holding most of the information about the transport state of the AudioEngine
CWindowProperties
CXMLDoc	XMLDoc is a subclass of QDomDocument with read and write methods
CXMLNode	XMLNode is a subclass of QDomNode with read and write values methods
C_nsm_client_t
CAboutDialog
CAuthor
CAboutDialogContributorList
CAction
CAudioEngineInfoForm	Audio Engine information form
CAudioFileBrowser	This dialog is used to preview audiofiles
CAutomationPathView
CButton	Generic Button with SVG icons or text
CClickableLabel	Custom QLabel that emits a signal when clicked
CColorSelectionButton	QPushButton opening a QColorDialog when clicked and displaying the selected color as background - with neither text nor an icon present
CColorTreeItem	Node in the Color tree of the appearance tab
CCommonStrings	A container class to collect all translatable strings at one place in order to allow for the reusage
CComponentMixerLine
CCpuLoadWidget	Shows the current CPU load using a meter similar to the one used in Fader
CDetailWaveDisplay
CDeviceComboBox	Combo box showing a list of available devices for a given driver
CDirector
CDownload
CDownloadWidget
CDragScroller
CDropEvent	Compatibility class to support QDropEvent more esily in Qt5 and Qt6
CDrumPatternEditor	Drum pattern editor
CEventListener
CExportMidiDialog	Dialog for exporting song to midi
CExportSongDialog	Dialog for exporting song
CFader	Custom fader widget
CFileBrowser
CFileDialog	Custom file dialog checking whether the user has write access to the selected folder before allowing to save a file
CFilesystemInfoForm
CFillRange
CH2QApplication
CHostAPIComboBox	Combo box showing a list of HostAPIs
CHydrogenApp
CInfoBar
CInstrumentEditor	Instrument Editor
CInstrumentEditorPanel	Container for the Instrument Editor (Singleton)
CInstrumentLine
CInstrumentNameWidget
CInstrumentRack
CLadspaFXMixerLine
CLadspaFXProperties
CLadspaFXSelector
CLashClient
CLayerPreview
CLCDCombo
CLCDDisplay	Non-interactive display used for both numerical values and the status display
CLCDSpinBox	Custom spin box
CLED	LED identicating a user selection
CMainForm	Debug only
CMainSampleWaveDisplay
CMasterMixerLine
CMetronomeLED	Custom LED that comes with its own timer
CMidiAction	This class represents a midi action
CMidiActionManager	The MidiActionManager cares for the execution of MidiActions
CMidiLearnable	Every widget which supports MidiLearn should derive from this Class
CMidiMap	The MidiMap maps MidiActions to MidiEvents
CMidiSenseWidget
CMidiTable
CMixer
CMixerLine	A mixer strip
CMixerSettingsDialog	Mixer Settings Dialog
CMouseEvent	Compatibility class to support QMouseEvent more esily in Qt5 and Qt6
CNotePropertiesRuler
CNsmClient	Non session manager client implementation
CObject	Base class of all components of hydrogen
COscServer	OSC Server implementation
CParser	Reusable parser for provided command line arguments
CPatternDisplayInfo
CPatternEditor
CPatternEditorInstrumentList
CPatternEditorPanel	Pattern Editor Panel
CPatternEditorRuler
CPatternFillDialog	Pattern Fill Dialog
CPatternPropertiesDialog	Pattern Properties Dialog
CPianoRollEditor
CPixmapWidget
CPlaybackTrackWaveDisplay
CPlayerControl
CPlaylistDialog	This dialog is used to use the H2PlayList
CPreferencesDialog	Preferences Dialog
CReporter	Crash reporter class
CRotary	Custom rotary widget
CSampleEditor	This dialog is used to preview audiofiles
CSampleWaveDisplay
CSE_addOrDeleteNoteAction
CSE_addOrDeleteNotePianoRollAction
CSE_addPianoRollNoteOffAction
CSE_automationPathAddPointAction
CSE_automationPathMovePointAction
CSE_automationPathRemovePointAction
CSE_clearNotesPatternEditorAction
CSE_deleteInstrumentAction
CSE_deletePatternFromListAction
CSE_deletePatternSequenceAction
CSE_deleteTimelineAction
CSE_deselectAndOverwriteNotesAction
CSE_dragInstrumentAction
CSE_duplicatePatternAction
CSE_editNoteLengthAction
CSE_editNotePropertiesAction
CSE_editNotePropertiesVolumeAction
CSE_editTagAction
CSE_editTimelineAction
CSE_fillNotesRightClickAction
CSE_fillRangePatternAction
CSE_insertPatternAction
CSE_loadPatternAction
CSE_mainMenuAddInstrumentAction
CSE_modifyPatternCellsAction
CSE_modifyPatternPropertiesAction
CSE_moveInstrumentAction
CSE_moveNoteAction
CSE_moveNotePianoRollAction
CSE_movePatternListItemAction
CSE_pasteNotesPatternEditorAction
CSE_patternSizeChangedAction
CSE_randomVelocityRightClickAction
CSE_togglePatternAction
CSelection
CSelectionGroup
CSelectionWidget
CShotList	Shot List
CArg	Buffer for construction of Q_ARGs
CSkin	Skin support
CSongEditor
CGridCell
CSongEditorPanel
CSongEditorPatternList	Song editor pattern list
CSongEditorPositionRuler
CSongPropertiesDialog	Song Properties Dialog
CSoundLibraryExportDialog
CSoundLibraryImportDialog	This dialog is used to import a SoundLibrary file from a local file or via HTTP
CSoundLibraryOpenDialog
CSoundLibraryPanel
CSoundLibraryRepositoryDialog
CSoundLibraryTree
CSplashScreen
CStatusMessageDisplay	Non-interactive display for status messages in the PlayerControl
CTargetWaveDisplay
Ctimezone
CVirtualPatternDialog	Virtual Pattern Dialog
CWaveDisplay
CWheelEvent	Compatibility class to support QWheelEvent more esily in Qt5 and Qt6
CWidgetScrollArea
CWidgetWithHighlightedList	Widget has a list of items associated with a popup which in turn can open dialog windows
CWidgetWithInput	Base class for active user input widget, which are not based on a high-level Qt widget
CWidgetWithLicenseProperty	Widget is affected by the "Font size" settings in the PreferencesDialog
CWidgetWithScalableFont	Widget is affected by the "Font size" settings in the PreferencesDialog