libgig  4.4.1
gig::Group Class Reference

Group of Gigasampler samples. More...

#include <gig.h>

Inheritance diagram for gig::Group:
DLS::Storage

Public Member Functions

SampleGetSample (size_t index)
 Returns Sample object at index of this sample group. More...
 
SampleGetFirstSample ()
 Returns the first Sample of this Group. More...
 
SampleGetNextSample ()
 Returns the next Sample of the Group. More...
 
void AddSample (Sample *pSample)
 Move Sample given by pSample from another Group to this Group.
 

Public Attributes

String Name
 Stores the name of this Group.
 

Protected Member Functions

 Group (File *file, RIFF::Chunk *ck3gnm)
 Constructor. More...
 
virtual ~Group ()
 Destructor. More...
 
virtual void UpdateChunks (progress_t *pProgress)
 Update chunks with current group settings. More...
 
virtual void DeleteChunks ()
 Remove all RIFF chunks associated with this Group object. More...
 
void MoveAll ()
 Move all members of this group to another group (preferably the 1st one except this). More...
 

Detailed Description

Group of Gigasampler samples.

Groups help to organize a huge collection of Gigasampler samples. Groups are not concerned at all for the synthesis, but they help sound library developers when working on complex instruments with an instrument editor (as long as that instrument editor supports it ;-).

A sample is always assigned to exactly one Group. This also means there is always at least one Group in a .gig file, no matter if you created one yet or not.

Definition at line 1365 of file gig.h.

Constructor & Destructor Documentation

◆ Group()

gig::Group::Group ( File file,
RIFF::Chunk ck3gnm 
)
protected

Constructor.

Parameters
file- pointer to the gig::File object
ck3gnm- pointer to 3gnm chunk associated with this group or NULL if this is a new Group

Definition at line 6071 of file gig.cpp.

◆ ~Group()

gig::Group::~Group ( )
protectedvirtual

Destructor.

Currently this destructor implementation does nothing.

Definition at line 6082 of file gig.cpp.

Member Function Documentation

◆ DeleteChunks()

void gig::Group::DeleteChunks ( )
protectedvirtual

Remove all RIFF chunks associated with this Group object.

See DLS::Storage::DeleteChunks() for details.

Implements DLS::Storage.

Definition at line 6089 of file gig.cpp.

Referenced by gig::File::DeleteGroup(), and gig::File::DeleteGroupOnly().

◆ GetFirstSample()

Sample * gig::Group::GetFirstSample ( )

Returns the first Sample of this Group.

You have to call this method once before you use GetNextSample().

Notice: this method might block for a long time, in case the samples of this .gig file were not scanned yet

Returns
pointer address to first Sample or NULL if there is none applied to this Group
See also
GetNextSample()
Deprecated:
This method is not reentrant-safe, use GetSample() instead.

Definition at line 6165 of file gig.cpp.

References DLS::File::GetSample().

◆ GetNextSample()

Sample * gig::Group::GetNextSample ( )

Returns the next Sample of the Group.

You have to call GetFirstSample() once before you can use this method. By calling this method multiple times it iterates through the Samples assigned to this Group.

Returns
pointer address to the next Sample of this Group or NULL if end reached
See also
GetFirstSample()
Deprecated:
This method is not reentrant-safe, use GetSample() instead.

Definition at line 6189 of file gig.cpp.

References DLS::File::GetSample().

◆ GetSample()

Sample * gig::Group::GetSample ( size_t  index)

Returns Sample object at index of this sample group.

Parameters
index- position of sample in this sample group's sample list (0..n)
Returns
sample object or NULL if index is out of bounds

Definition at line 6139 of file gig.cpp.

References DLS::File::GetSample().

Referenced by gig::File::DeleteGroup().

◆ MoveAll()

void gig::Group::MoveAll ( )
protected

Move all members of this group to another group (preferably the 1st one except this).

This method is called explicitly by File::DeleteGroup() thus when a Group was deleted. This code was intentionally not placed in the destructor!

Definition at line 6213 of file gig.cpp.

References AddSample(), DLS::Info::ArchivalLocation, DLS::Resource::GenerateDLSID(), DLS::Resource::pInfo, DLS::Info::SetFixedStringLengths(), gig::File::VERSION_2, gig::File::VERSION_3, and gig::File::VERSION_4.

Referenced by gig::File::DeleteGroupOnly().

◆ UpdateChunks()

void gig::Group::UpdateChunks ( progress_t pProgress)
protectedvirtual

Update chunks with current group settings.

Apply current Group field values to the respective chunks. You have to call File::Save() to make changes persistent.

Usually there is absolutely no need to call this method explicitly. It will be called automatically when File::Save() was called.

Parameters
pProgress- callback function for progress notification

Implements DLS::Storage.

Definition at line 6107 of file gig.cpp.

References RIFF::List::AddSubList(), RIFF::List::GetSubChunk(), RIFF::List::GetSubChunkAt(), RIFF::List::GetSubList(), RIFF::List::MoveSubChunk(), and DLS::File::pVersion.


The documentation for this class was generated from the following files: