//---------------------------------------------------------------------------------------
wxString IdfyScalesCtrol::set_new_problem()
{
//This method must prepare the problem score and set variables:
// m_pProblemScore - The score with the problem to propose
// m_pSolutionScore - The score with the solution or NULL if it is the
// same score than the problem score.
// m_sAnswer - the message to present when displaying the solution
// m_nRespIndex - the number of the button for the right answer
// m_nPlayMM - the speed to play the score
//
//It must return the message to display to introduce the problem.
//select a random mode
m_fAscending = m_pConstrains->GetRandomPlayMode();
// generate a random scale
EScaleType nScaleType = m_pConstrains->GetRandomScaleType();
// select a key signature
RandomGenerator oGenerator;
m_nKey = oGenerator.generate_key( m_pConstrains->GetKeyConstrains() );
// for minor scales use minor key signature and for major scales use a major key
if (Scale::is_minor(nScaleType) && is_major_key(m_nKey))
m_nKey = get_relative_minor_key(m_nKey);
else if (!Scale::is_minor(nScaleType) && is_minor_key(m_nKey))
m_nKey = get_relative_major_key(m_nKey);
//Generate a random root note
EClef nClef = k_clef_G2;
m_fpRootNote = oGenerator.get_best_root_note(nClef, m_nKey);
//hide key signature if requested or not tonal scale
bool fDisplayKey = m_pConstrains->DisplayKey() && Scale::is_tonal(nScaleType);
if (!fDisplayKey)
m_nKey = k_key_C;
//create the score
m_sAnswer = prepare_score(nClef, nScaleType, &m_pProblemScore);
//compute the index for the button that corresponds to the right answer
int i;
for (i = 0; i < k_num_buttons; i++) {
if (m_nRealScale[i] == nScaleType) break;
}
m_nRespIndex = i;
//if two solutions (minor/major or Gregorian mode) disable answer buttons
//for the not valid answer
DisableGregorianMajorMinor(nScaleType);
//return string to introduce the problem
if (m_pConstrains->is_theory_mode())
return _("Identify the next scale:");
else
return "";
// return _("Press 'Play' to hear it again");
}
//---------------------------------------------------------------------------------------
wxString IdfyTonalityCtrol::set_new_problem()
{
//This method must prepare the problem score and set variables:
// m_pProblemScore, m_pSolutionScore, m_sAnswer, m_nRespIndex and m_nPlayMM
// select a key signature
RandomGenerator oGenerator;
m_nKey = oGenerator.generate_key( m_pConstrains->GetKeyConstrains() );
//create the score
EClef nClef = k_clef_G2;
m_sAnswer = prepare_score(nClef, m_nKey, &m_pProblemScore);
//compute the index for the button that corresponds to the right answer
ComputeRightAnswerButtons();
//return string to introduce the problem
return _("Press 'Play' to hear the problem again.");
}
