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maCursorKeys.cpp
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maCursorKeys.cpp
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//
// MultiArp - Another step in the Great Midi Adventure!
// Copyright (C) 2017, 2018 Barry Neilsen
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
//////////////////////////////////////////////////////////////////////////////
#include "maCursorKeys.h"
CursorKeys * CursorKeys::m_Focus = NULL;
CursorKeys::CursorKeys()
{
//ctor
}
CursorKeys::CursorKeys(const CursorKeys & val)
{
// Explicitly avoid copying any pointers to other menus,
// nothing else to be done. (Members appear to be initialized
// according to their declarations. i.e. set to NULL, etc.)
}
CursorKeys::~CursorKeys()
{
//dtor
if ( m_Focus == this )
m_Focus = NULL;
}
bool CursorKeys::MenuActive()
{
return m_Focus != NULL;
}
bool CursorKeys::RouteKey(key_type_t k)
{
if ( m_Focus != NULL )
return m_Focus->HandleKey(k);
else
return false;
}
std::string g_EmptyStatus;
std::string & CursorKeys::Status()
{
if ( m_Focus != NULL )
return m_Focus->m_Status;
else
return g_EmptyStatus;
}
std::string & CursorKeys::Help()
{
if ( m_Focus != NULL )
return m_Focus->m_Help;
else
return g_EmptyStatus;
}
bool CursorKeys::FirstField()
{
if ( m_Focus != NULL )
return m_Focus->m_FirstField;
else
return false;
}
// Default empty containers.
std::vector<screen_pos_t> g_FieldPositions;
std::vector<screen_pos_t> g_Highlights;
std::vector<screen_pos_t> & CursorKeys::GetHighlights()
{
if ( m_Focus != NULL )
return m_Focus->m_Highlights;
else
return g_Highlights;
// Convoluted behaviour, I know, but assuming this method is (usually)
// called on the default global object used for routing to actual
// instances, the global object's array will always exist and always
// be empty.
}
std::vector<screen_pos_t> & CursorKeys::GetFieldPositions()
{
if ( m_Focus != NULL )
return m_Focus->m_FieldPositions;
else
return g_FieldPositions;
}