private void incDecMapping(MappingViewModel mapping, int step, IncDecWhat what)
{
var oldBinding = mapping.MidiBinding as AGenericMidiDefinition;
if (oldBinding != null)
{
mapping.SetBinding(incDecGeneric(oldBinding, step, what));
}
}
public void IncDecMappings(int step, IncDecWhat what)
{
foreach (var mapping in _mappings)
{
incDecMapping(mapping, step, what);
}
analyzeSelection(true);
updateMenus(false, true);
}
private int incDec_note(int old, int step, IncDecWhat what)
{
if (what != IncDecWhat.Number)
{
step = 0;
}
int new_i = old + step;
if (new_i < 0)
{
new_i = 0;
}
if (new_i > 127)
{
new_i = 127;
}
return(new_i);
}
// note: channels do not wrap around on purpose
private int incDec_channel(int old, int step, IncDecWhat what)
{
if (what != IncDecWhat.Channel)
{
step = 0;
}
int new_i = old + step;
if (new_i <= 1)
{
new_i = 1;
}
if (new_i > 16)
{
new_i = 16;
}
return(new_i);
}
/*
* Note1:
* "Mapping.MidiBinding" comes without type by some reason.
* Workaound inspects the types explicitelly
* We could use AGenericMidiDefinition.Parse but then we had to generte the string by hand
*
* Note2:
* "Type" is not C#. Its about traktor "in"/"out"
*
*/
private AGenericMidiDefinition incDecGeneric(AGenericMidiDefinition old, int step, IncDecWhat what)
{
if (old is ComboMidiDefinition)
{
var specific = (ComboMidiDefinition)old;
return(new ComboMidiDefinition(
incDecGeneric(specific.MidiDefinition1, step, what),
incDecGeneric(specific.MidiDefinition2, step, what)));
}
// at this stage we always have a channel
int old_channel = old.Channel;
int new_channel = incDec_channel(old_channel, step, what);
if (old is NoteMidiDefinition)
{
var specific = (NoteMidiDefinition)old;
var keyConverter = new MidiLib.Utils.KeyConverter();
int old_value = keyConverter.ToKeyIPN(specific.KeyText);
int new_value = incDec_note(old_value, step, what);
string new_note = keyConverter.GetKeyTextIPN(new_value);
return(new NoteMidiDefinition(old.Type, new_channel, new_note));
}
if (old is ControlChangeMidiDefinition)
{
var specific = (ControlChangeMidiDefinition)old;
int new_value = incDec_note(specific.Cc, step, what);
return(new ControlChangeMidiDefinition(old.Type, new_channel, new_value));
}
// this should never be reached!
return(null);
}
